Application Note - Heat Pump (HP) Controller

Transcription

1 Application Note Heat Pump Control Issue Date October 9, 2009 Application Note - Heat Pump (HP) Controller Application Note - Heat Pump (HP) Controller...4 Introduction... 4 Related Documentation... 5 Key Concepts... 7 State-Based Control...7 Occupancy Determination...8 Zone Temperature Control...9 Effective Zone Temperature Setpoint Determination...9 Occupied Control Sequencer...11 Unoccupied Control Sequencer...13 Sequencers...16 Emergency Heat...16 No Airflow...16 Unit Enable...17 Control of Staged Devices...18 Zone Control of Staged Devices...18 Device Availability Determination...18 Output Device Control...19 Mixed Air Damper...19 Heat Pump Heating/Cooling...23 Auxiliary Heating...27 Supply Fan...29 PID Tuning...32 Integral Time...32 Proportional Band...32 Saturation Time...32 FX Builder Application Wizard Concepts Installing the HP Application Package...34 Selecting the HP Application Template Johnson Controls, Inc. Code No. LIT

2 2 Application Note - Heat Pump (HP) Controller Configuring the HP Application...38 Configuring the Control Strategy...38 Configuring the Network Room Module (NRM)...40 Adjusting Setpoints...41 Adjusting Parameters...43 Adjusting Proportional plus Integral plus Derivative (PID) Parameters...44 Configuring the Internal Occupancy Schedule...46 Viewing the Configuration Summary...47 Selecting the User Interface(s) and Supervisor Interface...48 Selecting the Target Device...49 Configuring the Hardware I/Os...50 Generating the Application Files and Documentation...52 Viewing Generated Application and Documentation Files...53 Reviewing an Exported Application File...53 FX CommPro Concepts User Interface Concepts Medium User Interface...56 Medium User Interface Capabilities...56 Medium User Interface Navigation...57 Status Folder...58 Config Folder...59 Setpoints Folder...60 Parameters Folder...61 PID Parameters Folder...62 Modes...63 Balancer Folder...66 NRM Setup Folder...67 Time Folder...68 Schedulers Folder...69 Contacts Folder...69 MUI Status LEDs...69 Accessing a Folder in the MUI...69 Changing a Configuration Setting, Setpoint, or Parameter in the MUI...69 LCD2x4 User Interface...70 LCD2x4 User Interface Capabilities...70 LCD2x4 User Interface Navigation...71 Config Page...73 Setpoints Page...75 Parameters Page...76 PID Parameters Page...76 Modes...77 Time Page...79 Password Page...80 Balancer Page...81 NRM Setup Page...82

3 Application Note - Heat Pump (HP) Controller 3 FX Setup Page...82 Schedulers Page...83 Events Page...83 Graphical Status Icons...83 Accessing a Page in the LCD2x4 UI...83 Changing a Configuration Setting, Setpoint, or Parameter in the LCD2x4 UI...83 Supervisor Interface... 84

4 4 Application Note - Heat Pump (HP) Controller Application Note - Heat Pump (HP) Controller Introduction This application note introduces the standard Heat Pump (HP) application template, provides procedures to configure the application using FX Builder s Application Wizard, and explains how to commission the system using the Integral and Medium User Interface and FX CommPro. The HP application template consists of a single application software file which, includes multiple configuration options and control strategies for controlling many different types of Heat Pumps. You use FX Builder s Application Wizard to select the specific configuration options and control strategies for your specific Heat Pump control requirements. The control strategy configuration options appear in Table 1. Table 1: HP Configuration Options Configuration Setting Allowable Options Temperature Control Strategy Zone Temperature Control Zone Sensor TM-2100 Network Room Module (NRM) Remote Setpoint Type Warm/Cool Adjust Setpoint Adjust Number of Heat Pump Stages None One Two Reversing Valve Action On for Heating On for Cooling Number of Auxiliary Heating None Stages One Two Fan Type Single Speed Variable Speed Occupied Fan Control Constant Fan Cycled Fan Continued on next page...

5 Application Note - Heat Pump (HP) Controller 5 Configuration Setting (Cont.) Unoccupied Control Economizer Enable Economizer Switchover Type Supply Fan Proof Air Filter Status Reset After Loss of Airflow Power Fail Restart Allowable Options Enable Disable Disable Enable Dry Bulb Differential Temperature Single Enthalpy Differential Enthalpy No Yes No Yes Manual Automatic Enable Disable Related Documentation Table 2: Related Documentation For Information On See Document LIT or Part Number FX06 Overview Information FX06 Field Controller LIT Product Bulletin FX06 Technical Information FX06 Field Controller LIT Technical Bulletin FX07 Overview Information FX07 Field Controller LIT Product Bulletin FX07 Technical Information FX07 Field Controller LIT Technical Bulletin FX14 Overview Information FX14 Field Controller LIT Product Bulletin FX14 Technical Information FX14 Field Controller LIT Technical Bulletin FX15 Overview Information FX15 Field Controller LIT Product Bulletin FX15 Technical Information FX15 Field Controller LIT Technical Bulletin FX16 Overview Information FX16 Master Controller LIT Product Bulletin FX16 Technical Information FX16 Master Controller LIT Technical Bulletin Network Room Module Network Room Modules LIT Overview Information Product Bulletin Network Room Module Network Room Modules LIT Technical Information Technical Bulletin Using the Application FX Tools Software LIT Wizard Package - FX Builder User s Guide Continued on next page...

6 6 Application Note - Heat Pump (HP) Controller For Information On (Cont.) Downloading and Commissioning See Document FX Tools Software Package - FX CommPro N2 User s Guide FX Tools Software Package - FX CommPro BACnet User s Guide LIT or Part Number LIT LIT

7 Application Note - Heat Pump (HP) Controller 7 Key Concepts State-Based Control Inputs Parameters Misc. Logic State Generators State Selector Output Controllers Outputs FIG:state_bsd_ctrl Figure 1: State-Based Control Diagram The HP application uses State-based Control to ensure proper control of the Heat Pump. State-based applications have the following components. Inputs: Extract information from the system. Examples include hardwired sensors (for example, zone temperature sensor), switches (for example, proof of airflow switch), and network overrides (for example, networked outside air temperature). Parameters: Refer to the pieces of information stored inside the application. Examples include configuration settings, setpoints, unit parameters, and Proportional plus Integral plus Derivative (PID) parameters. Many parameters are adjustable. Miscellaneous Logic: Defines all logic not defined via a State Generator or Output Controller. Examples include occupancy determination and active setpoint determination. State Generators: Define the sequences of operation for a specific control system. State generators need information from the appropriate inputs or parameters or status information from the output controllers to ensure proper sequencing. State Selector: Receives state information from all of the state generators. The state selector then determines the current set of output controller modes based on the current states of all the state generators. Output Controllers: Define the operation of the output devices (for example, valves, dampers, and fans) based on the modes determined by the State Selector. Outputs: Convert the output controller information into action. Examples include valve and damper outputs, fan commands, and cooling and heating stage commands.

8 8 Application Note - Heat Pump (HP) Controller Occupancy Determination The HP application: supports a local and network occupancy schedule with the network schedule having priority supports a network occupancy sensor input has a temporary occupancy input and a network occupancy manual command with the network occupancy manual command having priority Table 3 displays the occupancy determination for the HP application. Table 3: Occupancy Determination Occupancy Manual Command Occupied Unoccupied Bypass Standby Invalid Occupancy Schedule X Occupancy Sensor X Effective Occupancy 1 Occupied Unoccupied Occupied Bypass Standby Occupied Standby Occupied Occupied Unoccupied X Occupied Occupied Unoccupied Invalid 2 Unoccupied X Unoccupied 1. The Effective Occupancy is overridden to Bypass when the Local Bypass input becomes active and ncitempoccctrl=true. The Effective Occupancy remains in Bypass for the duration of the Bypass Time. 2. Standby and Bypass states are treated the same as Invalid.

9 Application Note - Heat Pump (HP) Controller 9 Zone Temperature Control The HP sequences the controlled devices to control the zone air temperature to a constant setpoint. Effective Zone Temperature Setpoint Determination The effective (actual) zone temperature setpoint that HP applications control depends on several inputs, including: occupied and unoccupied heating and cooling setpoints (configured via cpsetpoints) network setpoint override (nvisetpoint) network warm/cool adjustment override (nviwarmcooladj) warm/cool or setpoint adjustment from the zone thermostat current effective occupancy state zone temperature (from the zone sensor or network zone temperature override nvispacetemp) The effective zone temperature setpoint is calculated using the LON Asymmetrical Setpoint Calculation Method, defined in Figure 2. The first step is to calculate the absolute setpoint offset, which is found using the equation in Figure 2. Setpoint is the local setpoint from the 55 to 85 F (13 to 30 C) setpoint adjustment zone thermostat or the network zone temperature override nvispacetemp. absoffset Setpoint ncisetpoints_occcool ncisetpoints_occheat 2 Figure 2: Calculate the Absolute Setpoint Offset The next step is to calculate the effective heating and cooling setpoints based on the effective occupancy mode. If the unit is in the occupied or bypass mode, you can find the effective heating and cooling setpoints using the equations in Figure 3. SetptOffset is the warm/cool adjustment from the zone thermostat or the network warm/cool adjustment override nviwarmcooladj. ClgSetpoint ncisetpoints_occcool absoffset SetptOffset nvisetptshift_occcool HtgSetpoint ncisetpoints_occheat absoffset SetptOffset nvisetptshift_occheat Figure 3: Calculate the Effective Heating and Cooling Setpoints in Occupied or Bypass Mode

10 10 Application Note - Heat Pump (HP) Controller If the unit is in the standby mode, you can find the effective heating and cooling setpoints using the equations in Figure 4. ClgSetpoint ncisetpoints_standbycool absoffset SetptOffset nvisetptshift_standbycool HtgSetpoint ncisetpoints_standbyheat absoffset SetptOffset nvisetptshift_standbyheat Figure 4: Calculate the Effective Heating and Cooling Setpoints in Standby Mode If the unit is in the unoccupied mode, you can find the effective heating and cooling setpoints using the equations in Figure 5. ClgSetpoint ncisetpoints_unocccool absoffset SetptOffset nvisetptshift_unocccool HtgSetpoint ncisetpoints_unoccheat absoffset SetptOffset nvisetptshift_unoccheat Figure 5: Calculate the Effective Heating and Cooling Setpoints in Unoccupied Mode The effective heating and cooling setpoints are limited by the minimum cooling setpoint and the maximum heating setpoint, which are set to 16 and 30 C (60.8 and 86 F), respectively. The Heat Pump (HP) application provides for two different physical setpoint adjustments. One setpoint adjustment type is an offset (warm/cool) adjustment and the other setpoint is an absolute setpoint adjustment. You can only use one or the other setpoint at any given time.

11 Application Note - Heat Pump (HP) Controller 11 Occupied Control Sequencer The Occupied Control Sequencer generates the appropriate occupied temperature control state for the HP application. See Table 4. See Figure 6 and Figure 7 for a description of the Occupied Control Sequencer process. Table 4: Occupied Control Sequencer State Satisfied Econ EconMech Mech DALL Econ Primary Heat Secondary Heat Shutdown Description In this state, heating and cooling devices are off or closed, and the mixed air damper is at minimum position. Enters this state if cooling is required and the economizer is available. In this state, the mechanical cooling devices are off and the mixed air damper modulates to control the zone temperature. Enters this state if, after being in the Econ state, the damper Proportional Integral (PI) loop has saturated high. In this state, the damper is opened to its maximum position and the mechanical cooling devices are sequenced to control the zone temperature. Enters this state if cooling is required and the economizer is not available. In this state, the mixed air damper closes to its minimum position and the mechanical cooling devices are sequenced to control the zone temperature. In this state, the mixed air damper is modulated between the minimum and maximum damper position to control the low limit temperature at the low limit setpoint. In this state, the damper is at minimum position. The primary heating devices are sequenced to control the zone temperature, and auxiliary heating is off. In this state, the damper is at minimum position and the primary heat is at maximum capacity. The auxiliary heating is sequenced to control the zone temperature. In this state, all devices are off or closed.

12 12 Application Note - Heat Pump (HP) Controller Start Zone Temp unreliable Shutdown Heating not required Heating required Zone Temp reliable Primary Heat A large heating setpoint change was made and heating is not required and fast sequence is enabled. Heating not required and Heat PID saturated low Satisfied Primary heat not responding heating not required FIG:zone_occ_ctrl_seq_heat Figure 6: Zone Occupied Control Sequencer - Heating Start Zone Temp unreliable Shutdown Cooling not required Cooling required Zone Temp reliable Mech A large cooling setpoint change was made and cooling is not required and fast sequence is enabled. Cooling not required and Cooling PID saturated low Satisfied Mech Cooling not responding and Cooling not required FIG:zone_occ_ctrl_seq_cool Figure 7: Zone Occupied Control Sequencer - Cooling

13 Application Note - Heat Pump (HP) Controller 13 Unoccupied Control Sequencer The Unoccupied Sequencer generates the appropriate unoccupied temperature control state. Table 5: Zone Unoccupied Sequencer State Satisfied Econ Mech EconMech Heat HeatTiming Idle Shutdown Disabled Description Enters this state if no heating or cooling is required. Enters this state if cooling is required and the economizer is available. In this state, the mixed air damper is modulated to control the zone temperature. Enters this state if cooling is required and the economizer is not available. In this state, the damper closes and the mechanical cooling devices are sequenced to control zone temperature. Enters this state after being in the Mech state for more than the Satisfied Timer Duration. In this state, the mixed air damper is opened to its maximum position, and the mechanical cooling devices are sequenced to control the zone temperature. In this state, the heating devices are sequenced to control the zone temperature. Enters this state if, after being in the Heat state, the zone temperature rises above the setpoint. Enters this state through Satisfied when the zone temperature is above the setpoint. In this state, all of the output controllers hold their last command. This state is used to allow the fan to start and obtain an accurate reading of the outside air temperature to determine free cooling suitability. In this state, all devices are off or closed. Enters this state if Occupancy is not Unoccupied.

14 14 Application Note - Heat Pump (HP) Controller Start Zone Temp unreliable Primary Heating Shutdown Zone Temp reliable WarmupCooldown = Cooldown Heating Demand is satisfied and the 5 min. satisfied timer has expired. Unoccupied control is not allowed but Heating is required and WarmupCooldown is Warmup. Satisfied Unoccupied control is allowed and Heating is required and WarmupCooldown is not Cooldown. Occupancy mode is unoccupied. Disabled Occupancy mode is not unoccupied. FIG:zone_unocc_seq_heat Figure 8: Zone Unoccupied Control Sequencer - Heating

15 Application Note - Heat Pump (HP) Controller 15 Zone Temp unreliable Shutdown Start Zone Temp reliable Mech FCU has started the fans and is ready for temperature control. Cooling demand is satisfied and the unoccupied timer has expired. FCU is not ready for temperature control. WarmupCcoldown is Warmup Unoccupied control is not allowed but cooling is required and WarmupCooldown is Cooldown. Idle Unoccupied Control is allowed and cooling is required and WarmupCooldown is not Warmup. Satisfied WarmupCooldown is Warmup Occupancy mode is unoccupied. Disabled Occupancy mode is not unoccupied. FIG:zone_unocc_seq_cool Figure 9: Zone Unoccupied Control Sequencer - Cooling

16 16 Application Note - Heat Pump (HP) Controller Sequencers Emergency Heat The application determines the Emergency Heat status (On or Off) based on a comparison of the zone temperature with the Emergency Heat Setpoint and Emergency Heat Differential. Table 6: Emergency Heat State Description On Emergency Heat is required. Off Emergency Heat is not required. No Airflow The application monitors the supply fan command and proof of flow input and determines whether the current state is Normal, Manual Reset Fault, or Self Reset Fault. Table 7 displays the states in the No Airflow module. Figure 10 displays the No Airflow sequencer process. Table 7: No Airflow State Description Normal Enters this state when the fan behavior matches the fan command. Manual Reset Fault Self Reset Fault Enters this state during the manual reset fault state. The application is in this state because there is no proof of airflow and the unit requires manual intervention to restart. Enters this state during the automatic reset fault state. The application is in this state because there is no proof of airflow and the unit does not require manual intervention to restart.

17 Application Note - Heat Pump (HP) Controller 17 Normal Fan status on for more than the flow debounce time. Fan status was lost for more than the Flow Debounce time. Fan status did not start before the startup delay expired. Supply fan commanded off Manual reset Self Reset Fault Manual Reset Fault NOT (Manual Reset Required) Manual Reset Required FIG:no_air_flo_2 Figure 10: No Airflow Sequencer Unit Enable The Unit Enable sequencer starts the unit. If the Power Fail Restart Enable configuration parameter input to the sequencer is disabled (No), then the state output matches the value of the unit enable input. If Power Fail Restart Enable is enabled (Yes), then the state output is true. The state output is true only if the unit enable input is true and the unit is powered up for a randomly generated time period in the range of 0 seconds to the Maximum Power Fail Restart Delay time. Table 8 displays the states of the Unit Enable sequencer. Table 8: Unit Enable State Description True Enters this state when the unit is enabled and allowed to run. False Enters this state when the unit is not enabled and not allowed to run.

18 18 Application Note - Heat Pump (HP) Controller The value of the unit enable input to the sequencer is determined by the Unit Enable Switch input and the Unit Enable network input according to Table 9. Table 9: Determination of Unit Enable Input to Unit Enable Sequencer Inputs Result Unit Enable Network Input (nvi) Unit Enable Switch Input Unit Enable Input to Sequencer Disable (0) Closed False Disable (0) Open False Enable (1) Closed False Enable (1) Open True Invalid Closed False Invalid Open True Control of Staged Devices The HP application provides a zone control strategy for sequencing staged devices. Zone Control of Staged Devices Figure 11 shows the staging points for the zone control scheme. The up arrows indicate turn on, and the down arrows indicate turn off. The stages turn on and off based on the PID present value. Figure 11: Zone Control of Staged Devices Device Availability Determination Based on outdoor temperature, the HP application locks out heating (via High Outside Air Temperature Lockout for Heating lockout setpoint) or cooling (via Low Outside Air Temperature Lockout for Cooling lockout setpoint) devices from the network. FIG:zone_ctr_stg_dev

19 Application Note - Heat Pump (HP) Controller 19 Output Device Control Mixed Air Damper The application provides control of a mixed air damper. This means that a single Analog Output (AO) controls the mixing of outside air with return air. Economizer Suitability The HP application supports the following suitability schemes: dry bulb switch-over differential temperature single enthalpy dual enthalpy In addition, the application supports a local configuration parameter and a network input to enable economizer suitability. If any of these methods are not suitable, then the economizer is considered unsuitable. Table 10 describes the conditions required to make the economizer suitable based on the switchover strategy.

20 20 Application Note - Heat Pump (HP) Controller Table 10: Economizer Suitability Economizer Enabled (cpeconselect) Network Economizer Availability (nvieconisavail) Economizer Switchover Type Outside Air Conditions Disabled X X X No Enabled Yes X X Yes No X X No Invalid Dry Bulb OAT DBSpt 1 No OAT < DBSpt TempDiff 2 Yes Differential Temperature Single Enthalpy Dual Enthalpy 1. DBSpt = Dry Bulb Setpoint (cpdrybulbsp) 2. TempDiff = Differential Temperature Setpoint (cptempdiff) 3. ZNT= Zone Temperature 4. EnthSetPt = Enthalpy Setpoint (cpenthsetpt) 5. EnthDiff = Differential Enthalpy Setpoint (cpenthdiff) 6. ZoneEnth = Zone/Return Air Enthalpy OAT ZNT 3 OAT < ZNT TempDiff OAEnth >= EnthSetPt 4 OAEnth < OAEnthSp EnthDiff 5 OAEnth >= ZoneEnth 6 OAEnth < ZoneEnth EnthDiff Economizer Suitable (nvoeconallowed) No Yes No Yes No Yes

21 Application Note - Heat Pump (HP) Controller 21 Modes of Operation Use Table 11 to determine the modes of operation for the Damper control function. Table 11: Modes of Operation Damper Mode Description Close The mixed air damper is closed. Open The mixed air damper is opened. Min OA The mixed air damper is opened to minimum position. Control Econ The mixed air damper is positioned between the damper minimum position and 100% open to control the zone temperature. Control Econ Limit The mixed air damper is positioned between the damper minimum position and 100% open to control the low limit temperature. Table 12 displays the Damper mode selection.

22 22 Application Note - Heat Pump (HP) Controller Table 12: Damper Mode Selector Table (State Selection) Sequencer States Responding No Airflow Unit Enable Emergency Heat Fan OnOff System Mode Unocc Temp Control Occ Temp Control Damper Mode Responding to Unocc Sequencer Responding to Occ Sequencer NOT(Normal) X X X X X X Close Normal Off X X X X X Close On On X X X X Close Off Off X X X Close On Purge Vent X X Open Cool Only NOT(Disable) X Close Heat Only Disable Shutdown Close Fan Only Water Flush Econ Control Econ Auto Econ Mech Open Satisfied Min OA Mech Primary Heat Secondary Heat False True False True DALL Econ Control Econ Limit

23 Application Note - Heat Pump (HP) Controller 23 Heat Pump Heating/Cooling The HP application supports the following heat control options: none staged heating/cooling with up to two stages Modes of Operation Table 13 displays the modes of operation for the Heat module. Table 13: Modes of Operation - Heating/Cooling Mode Description Off All heating/cooling devices are turned off. Max Heat The reversing valve is turned on, and the compressor outputs are turned on for maximum heat. Main Heating The reversing valve is turned on, and the compressor outputs are sequenced to control the zone temperature. Main Cooling The reversing valve is turned off, and the compressor outputs are sequenced to control the zone temperature. Table 14 displays the Heat Pump Heating/Cooling mode selection.

24 24 Application Note - Heat Pump (HP) Controller Table 14: Heat Pump Heating/Cooling Mode Selector Table (State Selection) Sequencer States Responding No Airflow Unit Enable Emergency Heat System Mode NOT Normal Normal Unocc Temp Control Effective State Occ Temp Control State Primary Heat Allowed Mech Cooling Allowed Heating Cooling Mode X X X X X X X Instant Shutdown Off X X X X X X Off On On X X X X X Max Heat Off Fan Only Water Flush X X X X Off Continued on next page... Cool Only Satisfied EconClg Primary Heat Secondary Heat Idle Shutdown EconMech Mech Disable X X X Off X Shutdown Econ Satisfied Primary Heat Secondary Heat DALL Econ PreHeat Responding to Unocc Sequencer False PreHeat Responding to Occ Sequencer False X True Main Clg False Off False X X Off True Mech Cooling Responding to Unocc Sequencer False True Mech Cooling Responding to Occ Sequencer False True

25 Application Note - Heat Pump (HP) Controller 25 Sequencer States (Cont.) Responding No Airflow Unit Enable Emergency Heat System Mode Normal On Off Continued on next page... Cool Only Heat Only Purge Vent Auto Unocc Temp Control Effective State Disabled Satisfied EconClg EconMech Mech Idle Shutdown Primary Heat Secondary Heat Disable Satisfied EconClg Idle Shutdown EconMech Mech Occ Temp Control State Primary Heat Allowed Mech Cooling Allowed Heating Cooling Mode PreHeat Responding to Unocc Sequencer PreHeat Responding to Occ Sequencer Mech Cooling Responding to Unocc Sequencer EconMech X True Main Clg False False True True Mech False Off False False X X X Off True X True X Max Heat False X Off Shutdown X X Off True True Econ Satisfied EconMech Mech DALL Econ Primary True X Main Htg Heat False X Off False False Secondary True X Max Heat True True Heat False X Off False False X X X Off True X X True Main Clg True Mech Cooling Responding to Occ Sequencer

26 26 Application Note - Heat Pump (HP) Controller Sequencer States (Cont.) Responding No Airflow Unit Enable Emergency Heat System Mode Normal On Off Purge Vent Auto Unocc Temp Control Effective State EconMech Mech Primary Heat Secondary Heat Disable Occ Temp Control State Primary Heat Allowed Mech Cooling Allowed Heating Cooling Mode PreHeat Responding to Unocc Sequencer PreHeat Responding to Occ Sequencer X X False Off True False False X Shutdown Econ Satisfied DALL Econ EconMech Mech Primary Heat Secondary Heat True X Max Heat False X Off False X X Off True Mech Cooling Responding to Unocc Sequencer X True Main Clg False Off False False True X Main Htg True True False X Off False False True X Max Heat True True False X Off False False True True Mech Cooling Responding to Occ Sequencer False True

27 Application Note - Heat Pump (HP) Controller 27 Auxiliary Heating The HP application supports the following auxiliary heating control options: none staged heating (one or two stages) Modes of Operation Table 15 describes the Auxiliary Heating function. Table 15: Modes of Operation Auxiliary Heating Mode Description Off All devices are turned off. Max Auxiliary heating stages are turned on for maximum heating. Instant Shutdown Auxiliary heating outputs are immediately de-energized without regard for minimum on-times. Main Control Auxiliary heating stages are sequenced to control the zone temperature. Mode Selection Table 16 displays the Auxiliary Heating mode selection.

28 28 Application Note - Heat Pump (HP) Controller Table 16: Auxiliary Heating Mode Selector (State Selection) Sequencer States Responding No Airflow Unit Enable Emergency Heat Secondary Heat Allowed System Mode Unocc Temp Control Occ Temp Control Secondary Heating Mode 1 Responding to Unocc Sequencer NOT(Normal) X X X X X X Instant False Shutdown Normal Off X X X X X Off On On X X X X Max Off False X X X Off True Cool Only X X Off Fan Only Water Flush Heat Only Purge Vent Auto X X Instant Shutdown Satisfied Idle Shutdown Econ Clg EconMech Mech Primary Heat X X Instant Shutdown Off Secondary Heat X Max Disable Shutdown Instant Satisfied Shutdown Econ Off EconMech Mech Primary Heat DALL Econ Secondary Heat Main Control 1. If Aux Ht Stages = None, Sec Htg Mode=Off, and Responding to Unocc, and Occ Sequencers is False True Responding to Occ Sequencer False True

29 Application Note - Heat Pump (HP) Controller 29 Supply Fan The HP application supports two supply fan options: single speed and variable speed. Supply fan speed is based on the supply fan mode. Modes of Operation Table 17 displays the modes of operation for the Supply Fan function. Table 17: Modes of Operation Supply Fan Mode Description Auto The fan speed is determined by the Heating/Cooling percent command (see Figure 12 and Figure 13). Off The fan is off. Fan Only The fan is overridden from the network (see Table 12). Max Speed The fan is on at maximum speed. Fan Speed On Off * 0% Diff ** Htg/Clg percent command *Fan will turn off when Fan Off Delay has expired **Fan Speed Differential set by cpfandiff Figure 12: Single-Speed Fan Speed Determination Fan Speed 100% MinSpeed* 0% 2%** 100% Htg/Clg percent command * Mininum Variable Speed set by cpfandiff ** Fixed Variable Fan Differential Figure 13: Variable-Speed Fan Speed Determination

30 30 Application Note - Heat Pump (HP) Controller Fan Speed Override In Fan Only mode, you can override a single speed or variable speed fan from a network via override points nvifanspeedoverride.state and nvifanspeedoverride.position. You cannot override the fan if the Unoccupied Control Sequencer Effective State is Satisfied, Idle, or Shutdown. Table 18: Fan Speed Override Commands Fan Option Fan Override State Fan Override Position (%) Fan Speed Single Speed Off X Off 1 On 0% Off % On Auto override released Variable Off X Min 2 Speed On 0% Min % 1-100% Auto override released 1. Fan output turns off when the Fan Off Delay (cpfanoffdelay) has expired. 2. The Minimum Variable Speed is determined by cpfandiff. Occupied Fan Control You can configure the Supply Fan to either run continuously or to turn off when the unit is in an occupied mode and satisfied (no heating or cooling is required). When the configuration parameter Occupied Fan Control is set to Constant Fan, the fan continues to run at minimum speed when no heating or cooling is required. If you set the parameter to Cycle Fan, the fan turns off during satisfied periods. Mode Selection Table 19 displays the Supply Fan mode selection.

31 Application Note - Heat Pump (HP) Controller 31 Table 19: Supply Fan Mode Selector (State Selection) Sequencer States Airflow Mode Unit Enable Emergency Heat Manual Restart Fault NOT (Manual Restart Fault) System Mode Unocc Temp Control Effective State Fan Spd Ovrd State Occ Temp Control State Occupied Fan Control Supply Fan Mode Supply Fan Mode Var Fan Dly X X X X X X X Off Off True Off False On Off X X X X X X Off Off True Off False On On On X X X X X Max Heat Max Heat X On Off Purge X X X X Max Heat Max Heat X On Vent Cool Only Satisfied X X X Off Off True Off Heat Only Idle Fan Only Shutdown False On Water Flush Econ Clg NOT Auto EconMech (Auto) X X Fan Only Fan Only X On Mech Primary Heat Secondary Auto Shutdown X Off Off True Off Heat False On Disable Satisfied Disable Auto Auto X On Enable Off Off True Off False On Econ X Auto Auto X On Econ Mech Mech Primary Heat Secondary Heat DALL Econ Fan OnOff

32 32 Application Note - Heat Pump (HP) Controller PID Tuning If tuning is required, you must manually tune the PIDs in this application. All of the default temperature control PID tuning parameters are based on a zone temperature control process. Use Table 20 as a conservative starting point if you are manually turning the PID. Further manual turning may be required. Table 20: PID Tuning Parameters Integral Time (Seconds) Proportional Band (Diff Deg. F) F (4 C) 830 Saturation Time (Seconds) Integral Time The time required by the integral action to contribute the same amount to the controller output as the proportional term for a constant error. Proportional Band The amount of change in the Process Variable that produces a full range change (High Limit - Low Limit) in the Present Value. It must be greater than zero. Saturation Time The amount of time the Present Value must be at the Low or High Limit for the saturation status to be set to either Low or High.

33 Application Note - Heat Pump (HP) Controller 33 Figure 14: PID Tuning Temperature vs. Time

34 34 Application Note - Heat Pump (HP) Controller FX Builder Application Wizard Concepts FX Builder is a software tool that allows you to create and export application software for FX Field Controllers. FX Builder includes an Application Wizard which allows you to easily create application software from predefined templates. These application templates are factory designed and tested and include several configuration options for you to choose from. The HP application template includes predefined features and functionality that you can select, enable/disable, and adjust with the Application Wizard. Examples of configuration options include: heating and cooling configuration choice of room sensor type configurable control strategies adjustable setpoints, parameters, and tuning parameters selectable user interface and supervisory interface configurable input/output types and channel assignments The following sections provide detailed procedures on how to use FX Builder s Application Wizard to install and select the HP application template and to configure and export a unique HP application file. Installing the HP Application Package To install the HP Application Package: 1. Obtain the HP Application Package and save it to your local hard disk. 2. Launch FX Builder. 3. Click Settings > Application Wizard Preferences (Figure 15).

35 Application Note - Heat Pump (HP) Controller 35 Figure 15: Settings > Application Wizard Preferences Menu The Application Wizard Preferences dialog box appears (Figure 16). Figure 16: Application Wizard Preferences Dialog Box without Packages Installed 4. Under File Preferences, select the documents you want to generate. Documentation types which you can select include: Hardware I/O Documentation Protocol Documentation Network Protocol Files (N2 Print Files, LON Resource files)

36 36 Application Note - Heat Pump (HP) Controller Note: The default is to generate all three types of documentation. We highly recommend you keep the preferences at these defaults, so that all documentation types are generated. 5. If desired, change the File Location to where the generated files are exported. 6. Click Install and navigate to the location of the HP Application Package as performed in Step Select the Heat Pump.dbe Application Package and click Open (Figure 17). Figure 17: Select Package Dialog Box The Application Package is installed in the Application Wizard Preferences dialog box (Figure 18). Figure 18: Application Wizard Preferences Dialog Box with HP Package Installed 8. Click Ok to exit the Application Wizard Preferences dialog box.

37 Application Note - Heat Pump (HP) Controller 37 Selecting the HP Application Template To select the HP Application Template: 1. Open FX Builder. 2. Click File > Application Wizard (Figure 19). The Select an Application Template window appears. Figure 19: File > Application Wizard Menu 3. On the left side of the window, open the Terminal Units folder and select the Heat Pump Application Template (Figure 20). Figure 20: Selecting the Heat Pump Application Template

38 38 Application Note - Heat Pump (HP) Controller 4. Click Next. A status bar appears while the selected application template and plug-ins are loaded into FX Builder (Figure 21). Figure 21: Loading Application Status Bar The Configure plug-in appears when the application is loaded (Figure 22). Configuring the HP Application The Configure dialog contains tabbed views of the control strategy configuration options, setpoints, and parameters that you can select and adjust in the HP application. Configuring the Control Strategy To configure the control strategy: 1. Click the Configuration tab. The HP application s control strategy configuration options and default values appear (Figure 22). Figure 22: Heat Pump Configuration Plug-in 2. Modify the configuration settings as needed. Use Table 21 as a reference.

39 Application Note - Heat Pump (HP) Controller 39 Table 21: Configuration Options Configuration Description Setting Zone Sensor Selection Zone Sensor Select the type of zone sensor TM-2100 NRM Heat Pump # of Stages Select the number of stages for the heat pump Options/Adjustment Range None One Stage Two Stages RV Action Select the reversing valve action On for Heating On for Cooling Aux Heating # or Stages Select the number of auxiliary heating stages Economizer Enable/Disable Switchover Type Select to enable or disable the economizer Select the economizer switchover control strategy None One Stage Two Stages Disable Enable Dry Bulb Differential Temperature Single Enthalpy Dual Enthalpy Automatic Fan Control Fan Type Select the type of fan Single Speed Variable Speed Fan Cycle Occd Select the type of occupied fan control Constant (keep fan constantly on) Cycling (cycle fan with heating and cooling) UnOcc Control Do you want to enable unoccupied control? Yes No Temp Occ Ctrl Alarm Selection SF Proof Filter Miscellaneous Loss of Airflow Power Fail Restart Enable/disable temporary occupancy control. When enabled, rotating the adjustment dial during the unoccupied mode initiates a period of temporary occupancy. Do you have a switch for proof of supply flow? Do you have a switch to indicate a dirty filter? Select the type of reset required after shutdown occurs due to loss of airflow Enable/disable the Power Fail Restart feature No (disabled) Yes (enabled Yes No Yes No Automatic Reset Manual Reset Yes No

40 40 Application Note - Heat Pump (HP) Controller Configuring the Network Room Module (NRM) The NRM Config tab appears only if you selected the NRM as the Zone Sensor configuration option. The NRM Config tab contains the options and setpoints that you can select and adjust for the NRM in the HP application. To configure the NRM: 1. Click the NRM Config tab. The HP application s NRM configuration options and default values appear (Figure 23). Figure 23: NRM Configuration Plug-in 2. Modify the NRM configuration options and settings as needed. Use Table 22 as a reference. Table 22: NRM Configuration Options Configuration Description Setting Setpoint Adjust Type Remote Setpoint Select the type of remote setpoint adjustment Display Units Default View Backlight Time UnOcc Blink Continued on next page... Select the units of measure to be displayed at the NRM Select the default view of the Liquid Crystal Display (LCD) Enter the amount of time the LCD backlight stays lit Enable/disable LCD blinking when in unoccupied mode Options/Adjustment Range Setpoint Adjust DegF Absolute Setpoint Warm-Cool Adjust US (Deg F) SI (Deg C) Temperature Setpoint 0 to seconds No Display Blink Display Blink

41 Application Note - Heat Pump (HP) Controller 41 Configuration Setting (Cont.) Maint Icon Temp Occ Time Setpoint Default Setpoint Low Limit High Limit Description Enable/disable the displaying of the maintenance icon (wrench). When enabled, the wrench appears if the following occurs: unreliable space temperature no communication with controller Enter the temporary occupancy time Enter the setpoint to be used upon recovery from a power failure Enter the minimum amount of setpoint adjustment allowed Enter the maximum amount of setpoint adjustment allowed Options/Adjustment Range Disable Enable 0 to 9,999 minutes 55.0 to 85.0 F (12.8 to 29.4 C) 55.0 to 85.0 F (12.8 to 29.4 C) 55.0 to 85.0 F (12.8 to 29.4 C) Adjusting Setpoints The Setpoints tab contains the setpoints that you can adjust in the HP application. To adjust setpoints: 1. Click the Setpoints tab. The HP application s setpoints and their default values appear (Figure 24). Figure 24: Setpoints Plug-in 2. Adjust the setpoints as needed. Use Table 23 as a reference.

42 42 Application Note - Heat Pump (HP) Controller Table 23: HP Setpoints Setpoint Type Description Adjustment Range Zone Setpoints Occ Clg Setpt SB Clg Setpt UnOcc Clg Setpt Occ Htg Setpt SB Htg Setpoint UnOcc Htg Setpt Lockouts - OAT Clg Lockout Htg Lockout Low OAT Heating Lock Economizer Minimum Position Maximum Position Enter the occupied cooling setpoint Enter the standby cooling setpoint Enter the unoccupied cooling setpoint Enter the occupied heating setpoint Enter the standby heating setpoint Enter the unoccupied heating setpoint Enter the outside air temperature lockout for cooling Enter the outside air temperature lockout for heating Low OAT Lockout Setpoint for Compressor Heating Set the minimum mixed air damper position Set the maximum mixed air damper position 60 to 80 F (15.6 to 26.7 C) 60 to 100 F (15.6 to 37.8 C) 60 to 100 F (15.6 to 37.8 C) 60 to 80 F (15.6 to 26.7 C) 55 to 80 F (12.8 to 26.7 C) 55 to 80 F (12.8 to 26.7 C) 0 to 100 F (-17.8 to 37.8 C) 0 to 100 F (-17.8 to 37.8 C) -40 to 30.2 F (-40 to -1 C) 0 to 100% 0 to 100% Temp Low Limit Set the low temperature limit 35 to 55 F (1.7 to 12.8 C) Drybulb Setpt Set the dry bulb setpoint 0 to 100 F (-17.8 to 37.8 C) Temp Differential Set the temperature 32 to 82 F (0 to 27.8 C) differential Enthalpy Setpt Set the single enthalpy setpoint 7.7 to Btu/lb (17.9 to kj/kg) Enthalpy Diff Emergency Heat Emerg Heat Setpt Emerg Heat Diff Set the dual enthalpy differential Enter the emergency heating setpoint Enter the emergency heating differential 7.7 to Btu/lb (17.9 to kj/kg) 35.6 to 50 F (2 to 10 C) 32.9 to 37.4 F (0.5 to 3 C)

43 Application Note - Heat Pump (HP) Controller 43 Adjusting Parameters The Parameters tab contains the system parameters that you can adjust in the HP application. To adjust parameters: 1. Click Parameters. The HP system parameters and their default values appear (Figure 25). Figure 25: Parameters Tab 2. Adjust the system parameters as needed. Use Table 24 as a reference. Table 24: HP System Parameters Parameter Type Description Adjustment Range System Power Fail Restart Enter the maximum power fail 0 to 180 seconds restart time Fan Off Delay Enter the fan off delay time 0 to 120 seconds Airflow Start Delay Enter the maximum amount 0 to 60 seconds of time allowed for the fan to prove after it has been commanded Airflow Debounce Enter the amount of time a 0 to 120 seconds temporary loss of airflow is ignored before action is taken Heat Pump HP Interstage Enter the amount of time for 0 to 900 seconds the heat pump interstage Aux Heating Aux Htg Interstage Enter the amount of time for 0 to 900 seconds the auxiliary heating interstage Fan Control Fan Diff Enter the fan differential 5 to 30% Continues on next page...

44 44 Application Note - Heat Pump (HP) Controller Parameter Type (Cont.) Miscellaneous Temp Occ Time Fast Seq Enable Fast Seq Thresh Description Enter the temporary occupancy time (available only if TM-2100 is selected as zone sensor) Enable or disable the Fast Sequence mode Enter the amount of setpoint change (threshold) needed to switch states during the Fast Sequence mode Adjustment Range 0 to 65,534 minutes Disable Enable 0 to 10 F (0 to 5.6 C) Adjusting Proportional plus Integral plus Derivative (PID) Parameters The PID Parameters tab contains the tuning parameters (proportional bands, integration times, and saturation times) that you can adjust in the HP application. To adjust PID parameters: 1. Click PID Parameters. The HP application s PID Parameters and default values appear (Figure 26). Figure 26: PID Parameters Tab 2. Modify the PID Parameters as needed. Use Table 25 as a reference.

45 Application Note - Heat Pump (HP) Controller 45 Table 25: HP PID Parameters Parameter Type Description Adjustment Range Cooling Clg PB Clg Iterm Clg Sat Time Heating Htg PB Htg ITerm Htg Sat Time Economizer Damper PB Damper ITerm Damper Sat Time Enter the cooling proportional band Enter the cooling integration time Enter the cooling saturation time Enter the heating proportional band Enter the heating integration time Enter the heating saturation time Enter the damper proportional band Enter the damper integration time Enter the damper saturation time Discharge Air Low Limit Low Limit PB Enter the low limit proportional band Low Limit ITerm Enter the low limit integration time Low Limit Sat Time Enter the low limit saturation time Aux Heating Aux Heating PB Enter the auxiliary heating proportional band Aux Heating ITerm Enter the auxiliary heating integration time Aux Heating Time Enter the auxiliary heating saturation time 0 to 100 F (0 to 55.6 C) 0 to 6,553 seconds 0 to 6,553 seconds 0 to 100 F (0 to 55.6 C) 0 to 6,553 seconds 0 to 6,553 seconds 0 to 100 F (0 to 55.6 C) 0 to 6,553 seconds 0 to 6,553 seconds 0 to 100 F (0 to 55.6 C) 0 to 6,553 seconds 0 to 6,553 seconds 0 to 100 F (0 to 55.6 C) 0 to 6,553 seconds 0 to 6,553 seconds

46 46 Application Note - Heat Pump (HP) Controller Configuring the Internal Occupancy Schedule The Schedule and Calendar tabs allow you to configure the internal occupancy schedule. Note: Using the internal occupancy schedule is optional. An external, network schedule and calendar may be used as an alternative. To configure the internal occupancy schedule: 1. Click on Schedule tab. See Figure Configure the Weekly Schedule. Select the checkboxes for the days of the week and holidays to be scheduled. Click and drag to select the desired occupied (on) period for a day of the week. Right-click in the selected time period and selected Status > Occupied. Repeat for the other occupied time periods and other desired days of the week. When finished, click Apply. Figure 27: HP Weekly Schedule 3. Click on the Calendar tab (Figure 28). Configure the Holiday Calendar. Click on the desired dates and right-click to assign the status (holiday or alternate). 4. When finished, click on Apply to set the Calendar.

47 Application Note - Heat Pump (HP) Controller 47 Figure 28: HP Calendar Viewing the Configuration Summary The Config Summary tab provides a summary for all configuration settings and setpoint and parameter adjustments made during the configuration session. To view the configuration summary: 1. Click Config Summary. The Configuration Summary report appears (Figure 29). 2. View the summary here or, to save the summary to a document, right-click on the summary information and select Copy to clipboard, then paste it into a document. Figure 29: Configuration Summary Window

48 48 Application Note - Heat Pump (HP) Controller Selecting the User Interface(s) and Supervisor Interface The Choose Interfaces (Figure 30) dialog box provides User Interface and Supervisor Interface options. If you want to return to the Configuration session to select different configuration options or to change setpoints and parameters, click Previous. To select the user interface(s) and supervisor interface: 1. Choose the desired User Interface(s). 2. Choose the desired Network Protocol. Figure 30: Choose Interfaces Dialog Box 3. Click Next to select the FX controller. The Select Target Device dialog box appears (Figure 31).

49 Application Note - Heat Pump (HP) Controller 49 Selecting the Target Device The Select Target Devices dialog box provides options for the target controller based on the configuration settings you selected. To select the target device: 1. Select a device and click Next. Figure 31: Select Target Device Dialog Box - Approved Devices Tab The Configure Hardware I/O window appears (Figure 33). Note: If the device you want to use does not appear in the list of approved devices, click the Rejected Devices tab and view the Reason for the rejection (Figure 32). You can also click the Exclusion Details button for more details. Then, based on the rejection reasons, you can click Previous to return to the configuration plug-ins and edit the appropriate configuration(s) to configure the device so it is an approved device for the application. Figure 32: Rejected Devices Tab

50 50 Application Note - Heat Pump (HP) Controller Configuring the Hardware I/Os The Configure Hardware I/O window is organized into tabs based on I/O type (Analog Inputs, Analog Outputs, and Digital Outputs). To configure the hardware I/Os: 1. Click on the Analog Inputs tab. Change the Sensor Type and Channel Number for the desired objects (Figure 33). Figure 33: Configure Hardware I/O Window Analog Inputs Tab 2. Click on the Analog Outputs tab. Change the Actuator Type and Channel Number for the desired object (Figure 34). Figure 34: Configure Hardware I/O Window Analog Outputs Tab 3. Click on the Digital Inputs tab. Change the Channel Number for the desired object (Figure 35).

51 Application Note - Heat Pump (HP) Controller 51 Figure 35: Configure Hardware I/O Window Digital Inputs Tab 4. Click on the Digital Outputs tab. Change the Channel Number for the desired object (Figure 36). Figure 36: Configure Hardware I/O Window Digital Outputs Tab Note: Each Channel Number must be unique. The Status column alerts you with a yellow alert symbol if multiple channels are assigned the same number. Correct the Channel Number so each channel has a unique number and all Status symbols are green (Figure 37). Figure 37: Channel Number Status Alert 5. Click Next. The Generate Application dialog box appears (Figure 38).

52 52 Application Note - Heat Pump (HP) Controller Generating the Application Files and Documentation This is the final step in creating and generating the Application files and documentation (Figure 38). To generate the application files and documentation: 1. Edit or enter a Name for the Application. 2. Enter the name of the Application designer in the Prepared By field (or department name, employee ID, other relevant information to the preparer), if desired. 3. Enter information relevant to the Application, design, notes for other Application users, or other information in the Description field, if desired. 4. Navigate to the directory folder where you want the application files to be exported (if different than the Application File default location shown). 5. If desired, change the name of the.apd file in the Application File field, but do not change the.apd extension. Figure 38: Generate Application Window 6. Click Finish. The application files and documentation are generated, and the Application Wizard closes. The bottom of the FX Builder window displays a status for each loaded application object. When all application objects are loaded, the Generating Documentation status bar displays in the middle of the screen (Figure 39). Figure 39: Generating Documentation Status Bar

53 Application Note - Heat Pump (HP) Controller Click OK when the Application Compile completed! dialog box appears (Figure 40). Figure 40: Application Compile Completed! Dialog Box The Application Wizard generates the Application and its corresponding files and documentation. The types of files generated depend on the selections made in the Application Wizard Preferences dialog box (Figure 16) and Configuration Options plug-ins. Viewing Generated Application and Documentation Files To view generated application and documentation files, go to the destination folder designated in the Application File field. Reviewing an Exported Application File The Application Wizard includes a synchronization feature that allows you to match an exported application file (*.apd) to its template. This feature allows you to use the Application Wizard screens to review and/or change any of the options, settings, or selections made to an exported application file. To use this feature: 1. Open the Application Wizard. 2. Click on Synchronize Application Template (Figure 41). Figure 41: Synchronize Application Template

54 54 Application Note - Heat Pump (HP) Controller The Open Application dialog box appears (Figure 42). Figure 42: Open Application Dialog Box 3. Navigate to the location of your exported *.apd file, select it and click Open. The Application Wizard reappears and shows if the selected application matches an installed template (Figure 43). Figure 43: Application Template Match 4. Click Next. The Application Wizard appears, showing the actual configuration settings, setpoints, adjustment parameters, user interface selection(s), protocol choice, target controller selection, and I/O configurations that were originally made before the application file was exported. You can now use the Application Wizard to view and/or change these settings as desired.

55 Application Note - Heat Pump (HP) Controller 55 FX CommPro Concepts FX CommPro is a software tool that you use to perform the following functions: download the application file to the target controller(s) monitor data points issue overrides adjust unit setpoints and parameters For detailed information on downloading and commissioning with FX CommPro, refer to the FX CommPro N2 User s Guide (LIT ) or FX CommPro BACnet User s Guide (LIT ).

56 56 Application Note - Heat Pump (HP) Controller User Interface Concepts The HP application template supports a choice of two User Interfaces: the Medium User Interface (MUI) and the LCD2x4 User Interface. Medium User Interface The MUI (Version 3) is an optional hardware accessory consisting of the following: 4-line by 26-character Liquid Crystal Display (LCD) 6 keys: up, down, left, right, Enter, and Escape 10 discrete status Light-Emitting Diodes (LEDs) Figure 44: Medium User Interface (MUI) The MUI connects to the Remote Display bus of the FX Field Controller, and you can mount the MUI locally or remotely, or use it as a hand-held tool. Medium User Interface Capabilities The HP application template includes a pre-defined MUI configuration. The MUI configuration organizes information into folders and pages which you navigate through using the keypad and display. You use the MUI to perform the following functions: monitor control points and system status adjust setpoints and unit parameters initiate overrides select the desired display units of measures

57 Application Note - Heat Pump (HP) Controller 57 Medium User Interface Navigation Upon powerup, the MUI displays the Home Page showing system information (Table 26). Table 26: MUI Home Page Contents Display Name Description Units/Enumeration Zone Zone temperature F/ C Temperature Act Clg SP Actual cooling setpoint F/ C Act Htg SP Actual heating setpoint F/ C Outside Air Outside air temperature F/ C Temp Low Limit Temp Low Limit Temperature F/ C Rem SP Adj Remote setpoint adjustment F/ C W/C Adj Warmer/cooler adjustment F/ C Supply Fan Command Supply fan command Off = off On = on Supply Fan Status Supply fan status Off = off On = on Filter Switch Filter switch status Clean = clean Dirty = dirty MA Dpr Out Mixed air damper position % open SF OutPut Supply fan position % open HP1 Cmd Heat pump stage 1 command Off = off On = on HP2 Cmd Heat pump stage 1 command Off = off On = on Rev Vlv Cmd Reverse valve command Cooling = cooling Heating = heating In addition to the Home Page, the MUI also includes 11 folders of information accessible from the MUI s Main Menu. Table 27: HP MUI Folders Folder User Access Contents Level Status All Input and output status Config All HP application configuration settings Setpoints All Setpoints Parameters All Miscellaneous setpoints and parameters PID Parameters All Proportional bands, integration times, and saturation times Modes All Sequencer modes and states Balancer All Override points NRM Setup All NRM configuration settings Continued on next page...

58 58 Application Note - Heat Pump (HP) Controller Folder (Cont.) User Access Level Time All Time Contents Schedulers All Schedulers Contacts All User management Status Folder The Status folder contains four pages showing the current values/states of the inputs and outputs (see Table 28 through Table 31). Table 28: MUI Status Folder Analog Inputs Page Contents Display Name Description Units/Enumeration Zone Temperature Zone temperature F/ C Outside Air Temp Outside air temperature F/ C Rem SP Adj Remote setpoint adjustment F/ C W/C Adj Warmer/cooler adjustment F/ C OA RH Outside air humidity % RH RA RH Return air humidity % RH ZN RH Zone humidity % RH Table 29: MUI Status Folder Digital Inputs Page Contents Display Name Description Units/Enumeration Supply Fan Status Supply fan status Off = off On = on Filter Switch Filter switch status Clean = clean Dirty = dirty Table 30 : MUI Status Folder Analog Outputs Page Contents Display Name Description Units/Enumeration MA Dpr Out Mixed air damper output % open SF OutPut Supply fan output % open

59 Application Note - Heat Pump (HP) Controller 59 Table 31: MUI Status Folder Digital Outputs Page Contents Display Name Description Units/Enumeration Supply Fan Cmd Supply fan command Off = off On = on HP1 Cmd Heat pump stage 1 command Off = off On = on HP2 Cmd Heat pump stage 2 command Off = off On = on Rev Vlv Cmd Reversing valve command Cooling = cooling Heating = heating Aux Htg1 Cmd Auxiliary heating 1 command Off = off On = on Aux Htg2 Cmd Auxiliary heating 2 command Off = off On = on Config Folder The Config folder contains one page showing the configuration settings made during the Application Wizard session. These settings are read-only (you cannot change the HP configuration from the MUI). See Table 32. Table 32: MUI Config Page Contents Display Name Description Units/Enumeration SP Adj Type Setpoint adjustment type Setpoint = setpoint adjust DegF Warm-Cool = warmer/cooler Num HP Stages Number of heat pump stages None = none One Stage = one stage Two Stage = two stages Rev Vlv Action Reversing valve action On Heat = on for heating On Cool = on for cooling Num Aux Htg Stages Number of auxiliary heating stages None = none One = one stage Two = two stages Econ Enable Economizer on/off Disable = disabled Enable = enabled Econ Strat Economizer switchover strategy Dry Bulb = dry bulb DiffTemp = differential temperature SngEnth = single enthalpy DiffEnth = dual enthalpy Auto = automatic Fan Type Fan speed type 1 SPD = single speed Variable = variable speed Continued on next page...

60 60 Application Note - Heat Pump (HP) Controller Display Name Description Units/Enumeration Occ Fan Control Occupied fan control type Constant = Constant fan Cycling = Cycled fan Unocc Control Unoccupied control enabled? No = no Yes = yes Restart Type Type of reset required after loss of airflow shutdown occurs Automatic = automatic reset Manual = manual reset PF Restart Enable Power fail restart enabled? No = no Yes = yes SF Proof Supply fan proof enabled? No = no Yes = yes Filter Switch Filter switch enabled? No = no Yes = yes Thermostat Type Room sensor type TM-2100 = TM-2100 NRM = NRM Enable Temp Occ Enable/disable temporary occupancy control. When enabled, rotating the adjustment dial during the unoccupied mode initiates a period of temporary occupancy. No = disable Yes = enable Setpoints Folder The Setpoints folder contains two pages of adjustable setpoints. See Table 33 and Table 34. Table 33 : MUI Setpoints Page Contents Display Name Description Units/Enumeration Occ Clg SP Occupied cooling setpoint F/ C StandBy Clg SP Standby cooling setpoint F/ C UnOcc Clg SP Unoccupied cooling setpoint F/ C Occ Htg SP Occupied heating setpoint F/ C StandBy Htg SP Standby heating setpoint F/ C UnOcc Htg SP Unoccupied heating setpoint F/ C Clg OAT Lockout Outside air cooling lockout F/ C Htg OAT Lockout Outside air heating lockout F/ C Lo OAT Htg Lockout Low outside air temperature heating F/ C lockout MA DPR Min Pos Mixed air damper minimum position % open MA DPR Max Pos Mixed air damper maximum position % open DA Low Limit SP Damper low limit setpoint F/ C OAT Drybulb SP Outside air temperature drybulb F/ C setpoint OA/ZN Temp Df SP Outside air/zone temperature F/ C differential setpoint Enth SP Enthalpy setpoint BTU/lb or Kj/Kg Enth Dif Dual enthalpy setpoint BTU/lb or Kj/Kg

61 Application Note - Heat Pump (HP) Controller 61 Table 34 : MUI Setpoints Page 2 Contents Display Name Description Units/Enumeration Emerg Heat SP Emergency heating setpoint F/ C Emerg Heat SP Df Emergency heating setpoint F/ C differential W/C Adjust Range Warmer/cooler adjustment range F/ C Parameters Folder The Parameters folder contains one page of adjustable miscellaneous setpoints and unit parameters. See Table 35. Table 35: MUI Parameters Page Contents Display Name Description Units/Enumeration PF Max Restart Time Maximum power fail restart time Seconds Fan Off Delay Fan off delay Seconds AirFlow Start Time Maximum amount of time allowed Seconds for the fan to prove after it has been commanded on AirFlow Debounce Amount of time a temporary loss Seconds of airflow is ignored before action is taken HP InterStage Dly Heat pump interstage delay Seconds Aux InterStage Dly Auxiliary heating interstage delay Seconds Fan Speed Diff Fan speed differential % Fast Seq Enable Enable/disable fast sequence. F/ C When enabled, the application switches between Heat, Satisfied, and Cool states faster (does not wait for saturation times to expire). Fast Seq Thresh Amount of setpoint change needed to switch states during the Fast Sequence mode Disable = disable Enable = enable Temp Occ Time Temporary occupancy time Minutes

62 62 Application Note - Heat Pump (HP) Controller PID Parameters Folder The PID Parameters folder contains one page of adjustable PID tuning parameters such as proportional bands, integration times, and saturation times. See Table 36. Table 36: MUI PID Parameters Page Contents Display Name Description Units/Enumeration Clg Prop Band Cooing proportional band F/ C Clg Int Time Cooling integration time Seconds Clg Sat Time Cooling saturation time Seconds Htg Prop Band Heating proportional band F/ C Htg Int Time Heating integration time Seconds Htg Sat Time Heating saturation time Seconds Dpr Prop Band Damper proportional band F/ C Dpr Int Time Damper integration time Seconds Dpr Sat Time Damper saturation time Seconds Low Limit PB Low limit proportional band F/ C Low Limit Int Time Low limit integration time Seconds Low Limit Sat Time Low limit saturation time Seconds Aux Htg PB Auxiliary heating proportional F/ C band Aux Htg Int Time Auxiliary heating integration time Seconds Aux Htg Sat Time Auxiliary heating saturation time Seconds

63 Application Note - Heat Pump (HP) Controller 63 Modes The Modes folder contains two pages showing the current sequencer states and modes. See Table 37 and Table 38. Table 37: MUI Modes Page One Contents Display Name Description Units/Enumeration Airflow Mode Airflow mode Normal = normal Self RF = fault, self-reset Manual RF = fault, manual reset Fan Mode Fan mode Auto = auto Off = off Fan Only= fan only Max Speed = maximum speed Occ Mode Occupied mode Occupied = occupied Unoccupied = unoccupied Bypass = bypass Standby = standby Invalid = invalid Econ Mode Economizer mode Close = closed Open = opened Min OA = minimum outside air temperature CECN = control economizer CECL = control economizer limit Occ State Occupied state Shutdown = shutdown Satisfied = satisfied Econ = econ Econ Mech = econ mech Mech = mech PriHeat = primary heat SecHeat = secondary heat DALL Econ = DALL Econ Continued on next page...

64 64 Application Note - Heat Pump (HP) Controller Display Name (Cont.) Description Units/Enumeration UnOcc State Unoccupied state Satisfied = satisfied Econ Clg = econ clg Econ Mech = econ mech Mech = mech Pri Heat = primary heat Sec Heat = secondary heat Idle = idle Shutdown = shutdown Disable = disable Emerg Heat Mode Emergency heating mode Off = off On = on Econ Allowed Economizer allowed? Yes = allowed No = not allowed Clg Allowed Cooling allowed? Yes = allowed No = not allowed Htg Allowed Heating allowed? Yes = allowed No = not allowed Aux Htg Allowed Auxiliary heating allowed? Yes = allowed No = not allowed Unit Enable Status Unit enable status Dis = unit disabled Ena = unit enabled HP Mode Heat pump mode Off = off Max Heat = maximum heat Instant SD = instant shutdown Main Htg = main heating Main Clg = main cooling HP Ctrl State Heat pump control state Off = off Max Heat = maximum heat Instant SD = instant shutdown Main Htg = main heating Main Clg = main cooling LLT Ctrl1 = LLT control 1 LLT Ctrl 2 = LLT control 1

65 Application Note - Heat Pump (HP) Controller 65 Table 38: MUI Modes Page Two Contents Display Name Description Units/Enumeration Aux Htg Mode Auxiliary heating mode Off = off Max = maximum Instant SD = instant shutdown Main Ctrl = main control Aux Heat State Auxiliary heating state Off = off Max = maximum Lim Max = limited maximum Wtr Flush = water flush LoOATPos = low outside air temperature position Instand SD = instant shutdown Hold = hold Main Ctrl = main control Aux Ctrl1 = auxiliary control number 1 Aux Ctrl2 = auxiliary control number 2 Lo OATStrtup = low outside air temperature startup

66 66 Application Note - Heat Pump (HP) Controller Balancer Folder The Balancer folder contains one page of commandable points. See Table 39. Table 39: MUI Balancer Page Contents Display Name Description Units/Enumeration Fan Ovrd State Fan override state Off = off On = on Auto = auto (return to control) Percentage of override 0 to 100 % Dpr Ovrd State Damper override state Auto = auto (return to control) Position = go to desired position Open = go full open Close = go full closed Percentage of override 0 to 100 % Flow Fault Reset Flow fault reset To reset the proof of flow switch shutdown, set this point to Reset and then set it back to Normal. Normal = normal Reset = reset

67 Application Note - Heat Pump (HP) Controller 67 NRM Setup Folder The NRM Setup folder contains one page of adjustable NRM configuration settings (see Table 40). Table 40: MUI NRM Setup Page Contents Display Name Description Units/Enumeration NRM Temp Units Units of measure displayed at the NRM Deg C = C Deg F = F NRM Default View The default view of the LCD Setpoint = show setpoint Temp = show space temperature NRM Backlight Time The amount of time the LCD 0 to 999 seconds backlight stays lit Enable UnOcc Blink Enable/disable LCD blinking when in unoccupied mode No = no display blink Yes = display blink Maint Icon Ena Enable/disable the displaying of the maintenance icon (wrench). When enabled, the wrench appears if: Enable = enable Disable = disable unreliable space temperature no communication with the controller Default NRM Abs SP The setpoint to be used upon F/ C recovery from a power cycle High SP Limit The maximum amount of setpoint F/ C adjustment allowed Low SP Limit The minimum amount of setpoint F/ C adjustment allowed Space Temp Offset Space temperature sensor offset (used to calibrate the space temperature sensor) F/ C

68 68 Application Note - Heat Pump (HP) Controller Time Folder The Time folder contains one page of points allowing the user to set the time, date, time zone, and units of measure. See Table 41. Table 41: MUI Time Page Contents Display Name Description Units/Enumeration Time Time HH:MM:SS Date Date mm/dd/yyyy Unit of Measure Units of measure DegC = SI DegF = U.S. Date Format Date format dd/mm/yyyy mm/dd/yyyy yyyy/mm/dd Time Zone Time zone GMT = Greenwich Mean Time CET = Central Europe Time EET = Eastern Europe Time AST = Atlantic Standard Time EST = Eastern Standard Time CST = Central Standard Time MST = Mountain Standard Time PAST = Pacific Standard Time AKST = Alaska Standard Time AEST = Eastern Standard Time ACST = Central Standard Time New_Zealand = New Zealand East_Brazil = East Brazil West_Brazil = West Brazil DST_Disabled = disabled

69 Application Note - Heat Pump (HP) Controller 69 Schedulers Folder The Schedulers folder consists of two pages, providing an interface for users to set the local occupancy schedule. The On Off Schedulers page provides users the ability to assign the occupied (On) and unoccupied (Off) times for Normal and Holiday days. The Calendar page provides users the ability to identify a specific date as either Normal or Holiday. Contacts Folder The Password folder provides user access management for the MUI. Access to all MUI folders is available to all users; therefore, the Contacts folder feature is not applicable. MUI Status LEDs None of the MUI s LEDs are configured to light. Accessing a Folder in the MUI To access a folder in the MUI: 1. On the Home Page, press the ESC key. The Main Menu appears with folder names. Each folder contains one or more pages of information. None of the folders are password-protected. 2. Press the up or down arrow keys to select the desired folder. 3. Press the OK key to view the folder contents. Note: Information displayed on the MUI can include read-only data points as well as writable configuration settings, setpoints, and parameters. Changing a Configuration Setting, Setpoint, or Parameter in the MUI To change a configuration setting, setpoint, or parameter: 1. Navigate to the page containing the desired point. 2. Press the Enter key to enter the edit mode. 3. Press the up or down arrow to select the desired point. 4. Press the Enter key again. 5. Press the up or down arrow key to toggle the entry to the desired setting or value. 6. Press the Enter key to accept or the Clear key to reject.

70 70 Application Note - Heat Pump (HP) Controller LCD2x4 User Interface The LCD2x4 user interface is an optional hardware accessory consisting of the following: 2-line by 4-character LCD graphical status icons four keys: up, down, clear (C), and OK The LCD2x4 user interface is available only as an integrated part of the FX06, FX07, and FX14 packaging. Figure 45: FX07 with Integral LCD2x4 User Interface LCD2x4 User Interface Capabilities The HP application template includes a pre-defined LCD2x4 user interface configuration. The LCD2x4 configuration organizes information into folders and pages which you navigate through using the keypad and display. You use the LCD2x4to perform the following functions: monitor control points and system status adjust setpoints and unit parameters initiate overrides select the desired display units of measure