Beyond Comfort VC3000 Series Line Voltage Switching Relay Pack Controllers Installation Guide August 10 th, 2010 (For Commercial and Lodging HVAC Fan Coil Applications) 028-0296-R1-LIT-VC3000-E01 Index Model Chart 2 Ordering Information 2 Ordering examples 2 Operation Overview 3 Typical one to one application set-up 4 Installation of VC3000 4 A) Inside an electrical cabinet of a fan coil unit 5 B) Outside of a junction box or electrical cabinet 5 C) Enclosed low voltage junction box (if required by local codes) 5 Communication Wiring to VTR73xxA Terminal Equipment Controller 6 From the VTR73xxA to the first VC3xxxX 6 From VC3xxxX to the controller 7 Possible network wiring topology 7 Wiring of Remote Inputs to VC3504E & VC3404E 7 Terminals, Wire Identification & Ratings 8 Typical Wiring Example 9 Specifications 9 Dimensions 10 Important Notice 10 1
Model Chart Applications VC3500E5000 VC3504E5000 VC3400E5000 VC3404E5000 2 pipes 2 pipes with reheat 4 pipes 2 pipes 2 pipes with reheat 4 pipes 2 pipes 2 pipes with modulating pulsed reheat 2 pipes 2 pipes with modulating pulsed reheat VC3300E5000 Slave Fan Unit Slave fan control only Fan control Up to 3 speed Up to 3 speed Up to 3 speed Up to 3 speed Up to 3 speed Monitoring inputs None 4 FCU remote inputs 4 FCU remote inputs 4 FCU remote inputs None Control types On-Off line switched valve output control On-Off line switched valve output control On-Off line switched valve output control On-Off line switched valve output control Slave fan control only - 1 heat / cool output -1 cool output -3 fan outputs - 1 heat / cool output -1 cool output -3 fan outputs -1 heat / cool output -1 Modulating pulsed Vdc output for SSR electric reheat control -3 fan outputs -1 heat / cool output -1 Modulating pulsed Vdc output for SSR electric reheat control -3 fan outputs 3 fan outputs Ordering Information Please refer to the Operation overview section for related information on VTR73xxA and VC3xxxX arrangements and possible combinations. More than one VC3xxxX relay pack can be used for a single VTR73xxA terminal equipment controller. Only one VC3x04E relay pack with monitoring inputs can be used for a single VTR73xxA terminal equipment controller. Ordering example: A VC3500E5000 is for a 90 to 277 Vac powered FCU mounted relay pack with the following outputs: Three 90 to 277 Vac switching fan relay outputs Two 90 to 277 Vac switching valve relay outputs A VC3504E5000 is for a 90 to 277 Vac powered FCU mounted relay pack with the following inputs and outputs: One configurable universal input One configurable binary input One dedicated discharge air temperature monitoring input One dedicated return air temperature control input Three 90 to 277 Vac switching fan relay outputs Two 90 to 277 Vac switching valve relay outputs 2
A VC3300E5000 is for a 90 to 277 Vac powered FCU mounted relay pack with the following outputs: Three 90 to 277 Vac switching fan relay outputs Operation overview The VC3xxxX series line voltage switching transformer relay pack functions as a slave unit under the control of a single master VTR73xxA terminal equipment controller. Fan operation can be configured and wired for the following: 3 Speed configuration using 3 fan relays ( Low Med - High ) 2 Speed configuration using 2 fan relays ( Low - High ) 3 Speed configuration with Auto fan speed mode using 3 fan relays ( Low Med - High ) 2 Speed configuration with Auto fan speed mode using 2 fan relays ( Low - High ) Single fan speed configuration. The VTR7300 controller can be configured for typical 2 or 4 pipe heating and cooling fan coil unit applications. 2 or 4 pipe only operation can be configured and wired for the following: Cooling only Heating only Cooling and heating with network or local auto changeover 2 or 4 pipe only with electric reheat can be configured and wired for the following: Cooling only Heating only Cooling and heating with network or local auto changeover On-Off electric reheat only Cooling with on-off or modulating Vdc pulsed electric reheat ( model dependent ) Heating with on-off or modulating Vdc pulsed electric reheat ( model dependent ) Cooling and heating with network or local changeover with on-off or modulating Vdc pulsed electric reheat ( model dependent ) The VC3xxxX relay pack supplies power to the wall VTR73xxA terminal equipment controller. The VTR73xxA controller operates the VC3xxxX relay pack via a simple communication bus. A maximum of 10 VC3xxxX relay pack can be used under a single VTR73xxA terminal equipment controller. 3
3 wires minimum are required between the VTR73xxA controller and the first VC3000 relay pack. The 3 wire functions are as follow: 1 Tx / Rx communication 2 power hot 7.0 Vdc 4 Watts maximum ( required for the VTR73xxA controller power ) 3 power common Commands for fan speed and valve operation are issued from the VTR73xxA terminal equipment controller to the VC3xxxX relay pack. Typical one to one application set-up Local Inputs at VTR7300 Controller Special optional local function(s): - Remote motion detector(s) - Window contacts - Occupancy card holder Existing or New Field VTR7300 Wires 3 minimum required 14-22 Ga Solid or Stranded Existing or New Communication Field Wires - BACnet MS -TP - LON TP -FT 10 - Wireless ( No wires ) High Voltage in cabinet wiring - Line powered 90 to 277 Vac - Line switching of fan & valves 90 to 277 Vac - Isolated heating output for electric reheat Model Dependent Optional FCU Monitoring Inputs - Service or Filter alarms - Supply air sensor - Return air sensor - Changeover sensor or contact Line Voltage Power Line Voltage Valves - 2 pipes or 4 pipes applications - Isolated line switching for electric reheat H C Line Voltage Fan - Configurable - Up to 3 speed fan control - Auto fan speed Installation IMPORTANT: ALL WIRING MUST CONFORM TO LOCAL AND NATIONAL ELECTRICAL CODE REGULATIONS. Please read the following instructions carefully before proceeding with the installation. Failure to follow the instructions could damage the product or cause a hazardous condition. Installation must be performed by a qualified service technician or electrician. Disconnect power supply before installing in order to prevent electrical shock. 4
There are three basic methods for installing the VC3000 transformer relay pack controller. A) Inside an electrical cabinet of a fan coil unit Use the plastic mounting tabs to secure the unit to the inside of the electrical enclosure. Secure to the inside with screws. Cut one or both plastic mounting tabs if space is needed inside the enclosure. Install a low voltage or high voltage metal separator if required (fig. 1). Do not exceed the maximum rated temperature of the unit. (65 o C/149 o F) Fig. 1 TYPICAL COIL UNIT Electrical Cabinet H C C C Low Voltage Connections to VTR7300 Controller B) Outside of a junction box or electrical cabinet Use the supplied lock nut to secure the transformer relay pack to the electrical junction box or to the electrical cabinet of the fan coil unit. C) Enclosed low voltage junction box type installation (if required by local codes) Install the transformer relay pack inside a 4 x 4 junction box. Cut one or both plastic mounting tabs if space is needed inside the enclosure. Use the supplied lock nut to secure the transformer relay pack (inside its junction box) to the main electrical junction box or to the electrical cabinet of the fan coil unit. 5
If replacing an old line voltage fan coil thermostat, label the wires before removal of the old thermostat. Electronic controls are static sensitive devices. Discharge yourself of any electrostatic build-up before manipulating or installing the terminal equipment controller. A short circuit or wrong wiring may permanently damage the terminal equipment controller or the equipment. VC3000 series transformer relay packs are to be used only as operating controls. If installed incorrectly the intended application may fail or lead to personal injury or loss of property. It is the responsibility of the end user to ensure that the device has been properly installed by a certified professional and that proper safety precautions have been taken to protect against failures. Communication Wiring to VTR73xxA Terminal Equipment Controller VTR73xxA Terminal Controller 3 - Tx / Rx 4-7 Vdc Power Hot 5 - Power Common VC3504E Relay Pack 1 - Tx / Rx 2-7 Vdc Power Hot 3 - Power Common VC3300E Relay Pack 1 - Tx / Rx 2-7 Vdc Power Hot 3 - Power Common To other VC3xxxX Relay Pack Only one VC3xxxX relay pack with remote monitoring inputs can be used under a single VTR73xxA controller. All other slave units must be either VC3xxxX relay pack(s) WITHOUT remote inputs. A maximum of 10 VC3xxxX relay packs can be used for a single VTR73xxA terminal equipment controller. From the VTR73xxA to the first VC3xxxX o Existing or new field wires o 3 minimum required 14-22 Ga solid or stranded. Shield not necessary. 6
From the first VC3xxxX to the controller to all other VC3xxxX Relay Pack(s) o Existing or new field wires o 2 minimum required 14-22 Ga solid or stranded. Shield not necessary. o Connect only common and 2 Tx / Rx communication Possible network wiring topology The VTR7300 to VC3000 transformer relay pack can use any network wiring topology as required or based on topology of existing wires. Daisy Chained Topology Mixed Daisy Chained & Star Topology Star Topology Wiring of Remote Inputs to VC3504E and VC3404E VC30x04E Relay Pack 4 - RUI1 5 - Scom 6 - RBI2 7 - SS 8 - RS Remote RUI 1 Input by configuration: - None ( monitoring only ) - Local changeover sensor ( 10K type2 COS ) - Local changeover contact ( COC NO or COC NC ) - Service alarm ( Service ) - Filter Alarm ( Filter ) Remote RBI 2 Input by configuration: - None ( monitoring only ) - Service alarm ( Service ) - Filter Alarm ( Filter ) SS Supply sensor: - 10K type2 monitoring only - Auto dectected RS Return Air Sensor: - 10K type2 main temperature copntrol - Auto dectected ( by-passes VTR73xxA internal sensor ) OR 7
Terminals, Wire Identification & Ratings VC3500E5000 VC3504E5000 VC3400E5000 VC3404E5000 VC3300E5000 Slave Fan Unit Low Voltage Terminals No local inputs Low voltage inputs No local inputs Low voltage inputs No local inputs Power Supply Fan line voltage contact Wire connections 1/2 HP maximum Valve line voltage contact output Yellow Wire connection 5A maximum Line voltage contact Wire connections 10A Maximum 1 Tx / Rx Tx / Rx Tx / Rx Tx / Rx Tx / Rx 2 7 Vdc 7 Vdc 7 Vdc 7 Vdc 7 Vdc 3 Com Com Com Com Com 4 RUI 1 RUI 1 5 Scom Scom 6 RBI 2 RBI 2 7 SS SS 8 RS RS 9 Heat - Heat - 10 Heat + Heat + LINE VOLTAGE CONNECTIONS 3 Fan speed control Brown, Blue, Red 4 Pipe Cool output, or 2 Pipe Heat/ Cool output 4 Pipe Heat output, or 2 Pipe Reheat output - 90 to 277 Vac universal all models - Black Hot L1 Power Vac (Switches: Brown, Blue, Red and Yellow) - White neutral power Vac 3 Fan speed control Brown, Blue, Red 4 Pipe Cool output, or 2 Pipe Heat/ Cool output 4 Pipe Heat output, or 2 Pipe Reheat output 3 Fan speed control Brown, Blue, Red 3 Fan speed control Brown, Blue, Red 2 Pipe Heat/ Cool output 2 Pipe Heat/ Cool output N/A N/A N/A N/A 3 Fan speed control Brown, Blue, Red 1 2 3 Tx / Rx 7 Vdc Com Power Supply Beyond Comfort VC3500E5000 008-0513 90-277 Vac - 50/60 Hz 10A 1/2HP Max WHITE BLACK 1 2 3 4 5 6 7 Tx / Rx 7 Vdc Com RUI 1 SCom RBI 2 SS Power Supply Beyond Comfort VC3504E5000 008-0514 90-277 Vac - 50/60 Hz 10A 1/2HP Max WHITE BLACK 1 2 3 Tx / Rx 7 Vdc Com Power Supply Beyond Comfort VC3400E5000 008-0511 90-277 Vac - 50/60 Hz 10A 1/2HP Max WHITE BLACK 1 2 3 4 5 6 7 Tx / Rx 7 Vdc Com RUI 1 SCom RBI 2 SS Power Supply Beyond Comfort VC3404E5000 008-0512 90-277 Vac - 50/60 Hz 10A 1/2HP Max WHITE BLACK 1 2 3 Tx / Rx 7 Vdc Com Power Supply Beyond Comfort VC3300E5000 008-0510 90-277 Vac - 50/60 Hz 10A 1/2HP Max WHITE BLACK RED 8 RS RED LOW LOW BLUE BLUE MED MED 9 BROWN BROWN HIGH HIGH 10 8 9 10 RED LOW Heat- BLUE MED Heat+ BROWN HIGH RS RED LOW Heat- BLUE MED Heat+ BROWN HIGH RED LOW BLUE MED BROWN HIGH COOL YELLOW COOL YELLOW COOL YELLOW COOL YELLOW Use copper conductors only. ORANGE ORANGE Use copper conductors only. Use copper conductors only. HEAT HEAT ORANGE ORANGE Use copper conductors only. Use copper conductors only. 8
Typical Wiring Example Brown - High Speed Blue - Medium Speed Red - Low Speed M M M 3 Speed 2 Speed Single S peed Applications Applications Applications Black - Hot Power Orange - Connected to Black-Hot White - Neutral Fan Speed Arrangement By Configuration Orange - Heating Valve Yellow - Cooling Valve V V VC3504E Relay Pack For 2 pipe applications use cooling valve yellow wire connection Orange - Electric Reheat R For electric reheat applications where current draw is under above 10 A use a line powered coil pilot duty relay or contactor for the heating element in place of the heating valve. Specifications Power supply: 90 to 277 Vac universal, 50-60 Hz Fan line voltage contact electrical ratings: Brown, Blue, Red wires ½ HP maximum Main heat and cool line voltage contact electrical ratings: Yellow wire 10A maximum Isolated heat line voltage contact electrical ratings: Orange wires 10A maximum VTR73xx terminal equipment controller power output: 7.0 Vdc +/ - 10 C% 2.4 watts minimum Output ratings: - Heat valve: 10 Amps @ 277 Vac maximum (orange wire) - Cooling valve: 5 Amps @ 277 Vac maximum (yellow wire) - Fan 1/2 HP @ 277 Vac maximum (red, blue, brown wire(s)) Operating conditions: 0 0 C to 50 0 C (32 0 F to 122 0 F) 0% to 95% R.H. non - condensing Storage conditions: -30 0 C to 50 0 C (-22 0 F to 122 0 F) 0% to 95% R.H. non - condensing Approximate shipping weight: Agency approvals all models: 0.75 lb (0.34 kg) ctuvus: UL 873 (US) and CSA C22.2 No. 24 (Canada) CE: LVD 2006/95/EC (Europe Union) CE: EMC 2004/108/EC (Europe Union) CE for RF: RTTE 1999/5/EC FCC: Compliant to: Part 15, Subpart B FCC for RF: Compliant to: Part 15, Subpart C 9
Dimensions 1.30" 3.15" 3.94" 4.80" 2.75" 3.15" Important Notice VC3000 series transformer relay packs are to be used only as operating controls. If installed incorrectly the intended application may fail or lead to personal injury or loss of property. It is the responsibility of the end user to ensure that the device has been properly installed and that proper safety precautions have been taken to protect against possible failures. Tampering with the devices or incorrect application of the device will void warranty. 10
Beyond Comfort Viconics Electronics Inc. 9245 Langelier Blvd. I St-Leonard I Quebec I Canada I H1P 3K9 Tel.: (514) 321.5660 I Fax: (514) 321.4150 I Toll free: 1 800.563.5660 sales@viconics.com I www.viconics.com 028-0296-E01