1 VC7300 Series-Installation Guide C ONTENTS Installation 2 Communication Wiring to VTR73xxA 4 Terminal Equipment Controller 4 VC3xxx LED Operation 5 Wiring of Remote Inputs to VC3504E and VC3404E 6 Model Chart 7 Terminals, Wire Identification & Ratings 8 Typical Wiring Example 9 Specifications 9 Dimensions 10 Important Notice Error! Bookmark not defined. VC 3000 Series Line Voltage Switching Relay Pack Controllers Installation Guide For Commercial and Lodging HVAC Fan Coil Applications May 3 rd , 2012 / 028-0296-R6 2 VC7300 Series-Installation Guide I NSTALLATION 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. • Do not exceed the maximum rated temperature of the unit. (50 °C/122 °F) 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. 3 VC7300 Series-Installation Guide 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. If replacing an old line voltage fan coil controller, label the wires before removal of the old controller. 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. 4 VC7300 Series-Installation Guide C OMMUNICATION W IRING TO VTR73 XX A T ERMINAL E QUIPMENT C ONTROLLER 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.7 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 5 VC7300 Series-Installation Guide 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. VC3 XXX LED O PERATION Condition of the status LED On/off LED vs. time (normal operation) Condition of the Status LED Cause Solution 2 short blinks No communication between the VTR73xxA and the VC3xxxX relay pack. The VC3xxxX Relay Pack will resume its output “no communication active” status Check communication wiring and or power cycle the controllers 2 short blinks and a longer blink Normal communication between the VTR73xxA and the VC3xxxX relay pack. N/A 0.2 2.5 0.6 0.4 0.0 1.0 5.0 sec Power On Online to VTR73xxA 6 VC7300 Series-Installation Guide W IRING OF R EMOTE I NPUTS TO VC3504E AND VC3404E 7 VC7300 Series-Installation Guide M ODEL C HART Part # VC3500E5000 VC3504E5000 VC3514E5000 Occ. Output VC3400E5000 VC3404E5000 VC3300E5000 Slave Fan Unit Applications 2 pipes 2 pipes with reheat 4 pipes 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 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 Up to 3 speed Monitoring inputs None 4 FCU remote inputs 4 FCU remote inputs None 4 FCU remote inputs None Control types On-Off line switched valve output control - 1 heat / cool output - 1 cool output - 3 fan outputs On-Off line switched valve output control - 1 heat / cool output - 1 cool output - 3 fan outputs On-Off line switched valve output control - 1 heat / cool output - 1 cool output - 3 fan outputs - Occupancy output On-Off line switched valve output control - 1 heat / cool output - 1 Modulating pulsed Vdc output for SSR electric reheat control - 3 fan outputs On-Off line switched valve output control - 1 heat / cool output - 1 Modulating pulsed Vdc output for SSR electric reheat control - 3 fan outputs Slave fan control only 3 fan outputs Ordering Information Notes: 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 VC3x4X Relay Pack with monitoring inputs can be used for a single VTR73xxA Terminal Equipment Controller Ordering examples: 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 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 8 VC7300 Series-Installation Guide T ERMINALS , W IRE I DENTIFICATION & R ATINGS Part # VC3500E5000 VC3504E5000 VC3514E5000 Occupancy Output VC3400E5000 VC3404E5000 VC3300E5000 Slave Fan Unit Low Voltage Terminals No local inputs Low voltage inputs Low voltage inputs No local inputs Low voltage inputs No local inputs 1 1- Tx/Rx 1- Tx/Rx 1- Tx/Rx 1- Tx/Rx 1- Tx/Rx 1- Tx/Rx 2 2- 7 VDC 2- 7 VDC 2- 7 VDC 2- 7 VDC 2- 7 VDC 2- 7 VDC 3 3- Com 3- Com 3- Com 3- Com 3- Com 3- Com 4 4- RUI 1 4- RUI 1 4- RUI 1 5 5- Scom 5- Scom 5- Scom 6 6- RBI 2 6- RBI 2 6- RBI 2 7 7- SS 7- SS 7- SS 8 8- RS 8- RS 8- RS 9 9-Occ 9- Heat - 9- Heat - 10 10- Heat + 10- Heat + LINE VOLTAGE CONNECTIONS Power Supply Power supply: - 90 to 277 VAC universal all models - Black Hot L1 Power VAC(Switches: Brown, Blue, Red, and Yellow) - White neutral power VAC Fan line voltage contact Wire connection ½ HP Maximum 3 Fan Speed Control Wires Brown, Blue, Red 3 Fan Speed Control Wires Brown, Blue, Red 3 Fan Speed Control Wires Brown, Blue, Red 3 Fan Speed Control Wires Brown, Blue, Red 3 Fan Speed Control Wires Brown, Blue, Red 3 Fan Speed Control Wires Brown, Blue, Red Valve line voltage contact output Yellow wire connection 10A maximum 4 Pipes Cool output Or 2 Pipes Heat / Cool output 4 Pipes Cool output Or 2 Pipes Heat / Cool output 4 Pipes Cool output Or 2 Pipes Heat / Cool output 2 Pipes Heat / Cool output 2 Pipes Heat / Cool output N/A Valve line voltage isolated contact output 2 x Orange wires connection 10A maximum 4 Pipes Heat output Or 2 Pipes reheat output 4 Pipes Heat output Or 2 Pipes reheat output 4 Pipes Heat output Or 2 Pipes reheat output N/A N/A N/A 9 VC7300 Series-Installation Guide T YPICAL W IRING E XAMPLE S PECIFICATIONS 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 Output ratings: -Heat Valve: (Orange wire): 10 Amps @ 277 VAC maximum -Cool Valve: (Yellow wire): 5 Amps @ 277 VAC maximum -Fan: (red, blue, brown wire(s)): 1/2 HP @ 277 VAC maximum Operating conditions: 0C to 50C (32F ro 122F) 0% to 95% RH non-condensing Approximate shipping weight: 0.75lb (0.34kg) Agency approvals all models: 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 10 VC7300 Series-Installation Guide D IMENSIONS I MPORTANT N OTICE Please check with your local government for instruction on disposal of this product 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. Viconics Technologies Inc. Tel.:Fax:Toll free: WWW . VICONICS . COM Next >