PP-8516 & PP Electronic Static Pressure Controllers and Transmitters for Cental Air Supply Systems General Instructions

Transcription

1 PP-8516 & PP-8616 Electronic Static Pressure Controllers and Transmitters for Cental Air Supply Systems General Instructions Part Number PP-8516 Static Pressure Controller/Transmitter PP-8616 Static Pressure Transmitter Performance Table PP-8000 Series Fan or Vortex Damper Actuator Control Signal (Vdc) Static Pressure Range (Inches W.C.) For Central Static Pressure Control and Indication 2-15 Factory Set ma.04-6 Throttling Range Adjustable % of this Range.04-6 Static Pressure Indication Signal (Vdc) ma ma Description and Use in Building Central Air Supply Systems Model PP-8516 is used for constant static pressure regulation. The supply air fan output is controlled either by Vortex dampers or by fan speed control. A 2-15 Vdc (12 ma) signal is available to control the fan speed or Vortex dampers. A 1-11 Vdc (2 ma) transmitter signal is available for meter indication of static pressure and/or to reset the central cooling controller to a warmer temperature when the duct static pressure exceeds a set level due to damper close off when no cooling is required. Remote pressure setpoint adjustment and master-slave operation are available. The unit may be used for air volume regulation for air velocities in excess or 1.5" to 6" W.C. velocity pressure. Model PP-8616 is a static pressure transmitter. This transmitter covers a range of 0-6" W.C. of static pressure and provides an output signal of 1-11 Vdc. This signal is used for meter indication of static pressure, normally in inches of water column. In addition, this signal may be used for a reset action, typically rasing the control point of a central cooling controller. This model may also be used for indication in excess or 1.5" to 6" W.C. velocity pressure. Velocity pressure sensors are required. ACCESSORIES Duct Static Pressure Sensing Tips AP-301 For pressure 1" and up AP-305 For pressure.01" and up Indication Meters ASP " W.C. static pressure indication Printed in U.S.A Copyright 2010 Schneider Electric All Rights Reserved. F

2 Inputs Outputs Part No. IO2 OP1 Slave Input IO Vdc Pressure Tap Remote 2-15 Vdc ISA-COM Master 2 ma 0-6" Inches Setpoint Adj. Damper 20 Vdc 6.2 Vdc from Signal Indication H 2 O Static AB1-COM Control 50 ma 4 ma Master to Slave Typically Pressure Vdc Signal Unit Units APS ma Meter PP-8516 X X X X X X X X PP-8616 X X 24 AC Consumption /Installation Requirements 20 Vdc + 1 Consumption Designation Max. Tap over Pressure In H 2 O PP-8516 X 3 VA 24H, 24G 50 PP-8616 a.5 VA X 20 ma 20-COM 50 a An alternative power source is 24 Vac,.5 VA, terminals 24H, 24G. Figure-1 Figure-2 Dimensions PP-8121 and PP Copyright 2010 Schneider Electric All Rights Reserved. F

3 SPECIFICATIONS Dimensions: 120 mm (4-3/4") high, 122 mm (4-7/8") wide, 149 mm (5-7/8") deep. Mounting Position: +15 from horizontal. Safe Ambient limits Temperature: Operating, 40 to 140 F (4 to 60 C). Storage, -40 to 160 F (-40 to 71 C). Pre-Installation Open the carton and visually inspect the device for part numbering and obvious defects before proceeding with the installation. Mounting screws are not provided. Installation All units must be mounted horizontal (within ±15 ) on duct work or a nearby vertical surface. 1/8" I.D. flexible tubing is required per pressure tap. The maximum tube length between the unit and a pressure sensor is 2 ft. Use screws or bolts in the mounting bracket which are appropriate for the surface material. Avoid locations where excessive vibration, moisture, corrosive fumes or vapors are present, or where high radio frequency or electromagnetic interference generating devices are near. The vibration force must not Hz. See Figure 2 for mounting dimensions. Wiring Make all connections according to job wiring diagrams and in compliance with national and local codes. Use 18 ga. 3 conductor cable (twisted) for connections to the controlled device. Use 18 ga. 3 conductor shielded cable when it is necessary to install the leads in the same conduit with power wiring or when high RFI/EMI generating devices are near. Ground the shield at the controller only on the COM (-) terminal. Refer to wiring diagrams (Figure 3 through 4) for typical connection to power, inputs, and outputs require by the application. Factory Settings See Figure 3. PP-8516 SPS 50% of span (3" W.C. static) TR Pressure 62% of span (3.72" W.C. static) Jumper Pin Location J1 Red/Yel IV1 J4 Red/Blu IV2 J5 Orange OP2 J6 Purple NC J7 Wht/Brn OP4 F Copyright 2010 Schneider Electric All Rights Reserved. 3

4 Constant Static Pressure Control Using PP-8516 Static Pressure Transmitter PP-8616 for 0-6" W.C. Indication Figure-4 When powered, the duct static pressure is indicated. There are no adjustments. Checkout Procedure Figure-3 Operational Adjustments PP-8516 SPS Knob: Establishes the setpoint of the static pressure-settable 0-100% of the 6" W.C. range. Pressure T.R. Dial: Establishes the pressure throttling range adjustable from 10% to 200% of the 6" W.C. range. Occasionally, an application may require less sensitivity, which requires a resistor added to the Gaux gain pins. This gain adjustment is explained on Page 5. Operating Instructions for PP-8516 with 24 Vac. Turn SPS to the required static pressure to be maintained. When the duct static pressure, as read on the 0-6" W.C. meter (ASP ), equals the SPS setting, the voltage at OP1-COM must be 7.5 Vdc. Adjust the Press TR pot for the least throttling range to achieve stable control. The throttling range determines the static pressure variation above and below the setting of SPS. In the event of PP-8516 does not control or indicate, refer to the checkout procedure. PP Refer to Figure 3. Check for 24 Vac (3 VA) supply voltage and measure with a VOM between 24H and 24G terminals on the controller. If the supply voltage is not present, check the power source for problems. Check the 20 ( ) Vdc supply by measuring with a VOM between the +20 (+) and COM (-) terminals. If the 20 Vdc is not present or is out of tolerance: The 20 Vdc supply may be overloaded (greater than 50 ma). An external device may be shorting the 20 Vdc supply. If neither of the above, consider the controller defective and replace it. Check the Vdc supply by measuring with a VOM between the +6.2 (+) and COM (-) terminals. If the +6.2 Vdc is not present or is out of tolerance: The 6.2 Vdc supply may be overloaded (greater than 4 ma). External devices may be shorting the 6.2 Vdc supply. If neither or the above, consider the controller defective and replace it. To check output operation, simulate high and low static pressure to obtain high (15 Vdc or higher) or low (2.5 Vdc or less) output according to connections for direct-acting (DA) or reverse-acting (RA) operation. (Factory set for RA.) 4 Copyright 2010 Schneider Electric All Rights Reserved. F

5 PP-8616 Static Pressure Transmitter Note: DIRECT-ACTING means the output as measured between OP1 and COM increases as the sensed static pressure increases. REVERSE-ACTING means the output as measured between OP1 and COM decreases as the sensed static pressure increases. Apply pressure to the high tap and observe performance per the chart data. Direct Acting Reverse Acting Jumper J6 TD Pin NO NC Apply Inches W.C. on High Tap Required OP1-COM Voltage 15 (+) 2 (-) 2 (-) 15 (+) Required IO2-COM Voltage 11 (+) 1 (-) 1 (-) 11 (+) In the event the voltages are not per the chart at the prescribed static pressures, the unit must be replaced. The voltage between 12V jumper and the COM terminal must be Vdc. The voltage between 7.5 jumper and the COM terminal must be Vdc. The voltage between the hall out pin and the COM terminal must be Vdc with no pressure and Vdc at 6" W.C. Refer to Figure 4. Check the power supply. 20 Vdc 20 ma 20 Vdc-COM terminal, or; 24 Vac.5 VA 24 Vac-COM terminals, Check IO2-COM 1-11 Vdc, 0-6" W.C. static pressure. The static pressure sensing tip tube attaches to the high tap. Field Calibration PP-8516 Establish the required static pressure at the high by manually manipulating the vortex damper or fan speed. The static pressure meter terminals IO2 and COM or a test gauge at the high tap may be used. The signal at OP1-COM must be 7.5 Vdc. Rotate SPS knob, if required. Hold the SPS shaft firmly and rotate the pointer CCW until it indicates the percent of the 0-6" static pressure range represented by the required static pressure. Adjust T.R. pressure until stable control is achieved with the minimum T.R. In the event it is necessary to reduce the sensitivity of the control, see page 5 for gain adjustment instructions. F Copyright 2010 Schneider Electric All Rights Reserved. 5

6 Terminal, Jumper, Pin Description and Use TERMINALS (All Voltage Measured to the COM Terminal) IO1 Jumper J7 to OP4 IO2 Jumper J5 on OP2 OP1 Pressure controller output typically 6 to 9 Vdc. IO1 Vdc OP1 Vdc Relationships IO1 may be inverted by NC, NO pins via Jumper 6. The gain is adjustable % by pressure T.R. adjustment. IO1 signal may be used to slave up to 6 PP-8516 controllers when connected to terminal ISA of the slave unit. (J1 is on pin IV1.) Pressure transmitter output 0-6" W.C. = 1-11 Vdc 2 ma for meter indication. Controller output 2-15 Vdc (12 ma) range typically 6-9 Vdc for vortex damper actuator or fan speed control. OPI = [IO1-7.5] is the factory set gain (no resistor on the Gaux pins and no voltage at ISA terminal.) ISA Used as slave input from master PP-8516 (J1 connections ISA to pin IV1). AB1 This is the input for a remote pressure setpoint, normally from a central energy management system, accepts Vdc input to change the setpoint from 100 to 0%. (35.7 mv/%) SPS knob must be set at 20%. J4 connects AB1 to pin IV Vdc Supply - 50 ma minimum supply current for controllers or actuators requiring this power for control Vdc Output - 4 ma power supply. for control functions; such as, a remote setpoint adjuster by a 5000 ohm potentiometer, such as the AT-8100 Series. A COM junction with terminal AB1. 24H 24 Vac 50/60 Hz power input 3 VA. 24G 24 Vac 50/60 Hz power input (same as COM terminal). COM System Common - Same as 24G terminal. JUMPERS J1 Connects ISA terminal to IV1 pin for slave input from master unit. J4 Connects terminal AB1 to pin IV2 for remote pressure setpoint adjustment. J5 Connects terminal IO2 to pin OP2 - the 1-11 Vdc output as the pressure changes from 0-6" W.C. J6 Connect OP4 pin (pressure control output) to N.O. or N.C. pin. When J6 is on pin NO, the OP1 voltage increases and IO1 decreases with a pressure increase. When J6 is on NC, the OP1 voltage decreases and IO1 increases with a pressure increase. J7 Connects terminal IO1 to pin OP4, the pressure control output. PINS IV1 IV2 OP2 OP4 Hall Out NO NC GAUX Connects to terminal ISA by J1. Used to receive a signal from a master unit in parallel operation. Connects terminal AB1 by J4. Used for remote pressure setpoint adjustment. Connects to terminal IO2 by J5. Transmitter output 1-11 Vdc. Connect to NC or NO pin by J6. This is the pressure controller output 2-15 Vdc. Hall Effect Transducer Output - This point is not accessible by any jumper; it is a test point only. For a 0-6" W.C., change the hall out pin voltage change from 3.0 to Vdc. Normally Opened - This point is selected by Jumper J6 when used with a normally open damper configuration. This point comes directly from the pressure controller amplifier. Normally Closed - This point is also selected by Jumper J6, but is used with a normally closed damper. This point is the inversion or the NO pin. OP1 terminal output gain adjustment. Add a resistor to the pins from the following chart to reduce the output voltage change from a given pressure input. Resistor on Gaux Gaux Pin Gain Resistor 1/4 Watt Min. 5% Tol. OP1 Gain Meg K K 5 22K 1 Remove the plastic caps from the pins, cut the resistor to 9/16" length and fit into the slots. Push the caps down on the pins until the resistor connections are made. 6 Copyright 2010 Schneider Electric All Rights Reserved. F

7 How to Specify PP-8516 Static Pressure Controller/Transmitter The PP-8516 Static Pressure Controller/Transmitter or equivalent shall: Control the air supply fan vortex dampers or speed control to maintain a set static pressure in the range of.04 to 6" W.C. Have an adjustable pressure throttling range of 10 to 200% or the 6" W.C. for system stability. Have static pressure sensed directly from the air stream by 1/8" tubing from the sensor. The static pressure is then fed to the electronic controller s transducer which converts the mechanical energy to electrical energy for analog, direct current output. Have a transmitter signal ma (min.) as the static pressure varies from 0-6" W.C. for meter indication. Linearity +2.5% of full scale. Have a control output voltage of ma (min.). For control of up to 6 Schneider Electric System 8000 actuators in parallel or sequence operation. Have 20 Vdc 50 ma (min.) power supply for other controllers. Have remote setpoint capability by Vdc input voltage signal. Have an output signal in the 2-15 Vdc range for parallel or sequence of other PP-8516 type controller in the air supply system. Have a 6.2 Vdc 4 ma power supply for remote setpoint adjustment other control functions. How to Specify PP " W.C. Static Pressure Transmitter The static pressure transducers or equivalent shall: Produce a signal voltage of 1-11 Vdc@ 2 ma min. as the static pressure change from 0-6" W.C. for meter indiction maintains linearity of +2.5% or full scale. Be powered by 24 VA or by ma. Have static pressure sensed directly from the air stream by 1/8" tubing from the sensor. The static pressure is then fed to the electronic controller s transducer which converts the mechanical energy to electrical energy for analog, direct current output. F Copyright 2010 Schneider Electric All Rights Reserved. 7

8 On October 1st, 2009, TAC became the Buildings business of its parent company Schneider Electric. This document reflects the visual identity of Schneider Electric, however there remains references to TAC as a corporate brand in the body copy. As each document is updated, the body copy will be changed to reflect appropriate corporate brand changes. Copyright 2010, Schneider Electric All brand names, trademarks and registered trademarks are the property of their respective owners. Information contained within this document is subject to change without notice. F Schneider Electric 1354 Clifford Avenue P.O. Box 2940 Loves Park, IL