Fan Coil Unit (FCU) Application Guide

Transcription

1 Fan Coil Unit (FCU) Series Room Controllers TABLE OF CONTENTS and SCs Fan coil terminal equipment controllers 2 A VC3500E5000: Heating/cooling: 4-pipe fan coil unit with 3-speed fan, 2-position valves with wireless door switch 4 VTR8350A5000 -VC3404E5000: Cooling and electric heat: 2-pipe fan coil unit with 3-speed fan, dehumidification, 2-position valves 6 A VC3504E5000: Heating/cooling with changeover sensor: 2-pipe fan coil unit with 3-speed fan and wireless window switch 8 VTR8350A VC3400E5000: Cooling and electric heat: 2-pipe fan coil unit with 3-speed fan and dehumidification, 2-position valves 10 A VC3514E5000: Heating/cooling: 2-pipe fan coil unit with 3-speed fan and fresh air damper, 2-position valves 12 A5000 -VC3500E5000 -VC3300E5000: Heating/cooling: 4-pipe fan coil unit with 3-speed fan, 2-position valves with slave relay pack 14 A VC3504E5000: Cooling and electric heat: 2-pipe fan coil unit with 3-speed fan, 2-position valves with wired window switch 16 A VC3500E5000: Heating/cooling: 4-pipe fan coil unit with 3-speed fan, 2-position valves with wired door switch 18 Appendix A - Passive infra-red (PIR) motion detector cover specifications 20 Appendix B - option network wiring if communicating models are used 21 Appendix C - controllers occupancy sequence of operation schematic 21 Appendix D - SED Series - wireless door & window switch 22 Appendix E - controller & VC3000 relay pack 23

2 2 Fan Coil Controller OVERVIEW & Relay Pack This new cost-effective solution for upgrading line-voltage fan coil unit thermostats requires only two components: the terminal equipment controller and the SC3000 relay pack. This solution allows existing line voltage wiring between the fan coil unit and temperature controller to be re-used, reducing overall costs and installation time. The SC3000 relay pack features an onboard universal voltage power supply and line-voltage relays which directly drive fractional horsepower fan motors and valves. This eliminates the need to install and wire costly pilot relays and transformers. The Line Voltage Fan Coil Terminal Equipment Controller and SC3000 Relay Pack can be configured to handle a broad variety of applications covering all the standard implementations necessary for controlling line-voltage HVAC systems. In addition to controlling heating, cooling and fan activity, depending on the model the can handle wireless networking and switches, passive infrared (PIR) occupancy detection using either onboard or remote sensors, and dehumidification control. The applications described here cover all these features, and in combination with the s advanced scheduling and occupancy controls can provide the functionality for any required line-voltage HVAC implementation.

3 Fan Coil Controller 3 AND SCS FAN COIL TERMINAL EQUIPMENT CONTROLLERS Commercial interface (local override) Power Part Number Description Humidity PIR Cover Communication A0Axx Stand-alone fan coil terminal equipment controller No No Stand-alone A0Bxx BACnet fan coil terminal equipment controller No No BACnet A0Pxx Wireless fan coil terminal equipment controller No No ZigBee Pro Wireless A5Axx Stand-alone fan coil terminal equipment controller No Yes Stand-alone A5Bxx BACnet fan coil terminal equipment controller No Yes BACnet A5Pxx Wireless fan coil terminal equipment controller Yes Yes ZigBee Pro Wireless VTR8350A0Axx Stand-alone fan coil terminal equipment controller Yes No Stand-alone VTR8350A0Bxx BACnet fan coil terminal equipment controller Yes No BACnet VTR8350A0Pxx Wireless fan coil terminal equipment controller Yes No ZigBee Pro Wireless VTR8350A5Axx Stand-alone fan coil terminal equipment controller Yes Yes Stand-alone VTR8350A5Bxx BACnet fan coil terminal equipment controller Yes Yes BACnet VTR8350A5Pxx Wireless fan coil terminal equipment controller Yes Yes ZigBee Pro Wireless Transformer relay packs for fan coil units Power Part Number Description SC3500E5045 Transformer relay pack five relay fan outputs SC3504E5045 Transformer relay pack five relay fan outputs, and four outputs SC3514E5045 Transformer relay pack five relay outputs, smart VDC OCC output, and four inputs SC3400E5045 Transformer relay pack four relay outputs and smart VDC output SC3404E5045 Transformer relay pack four relay outputs, smart VDC output, and four inputs SC3300E5045 Transformer relay pack three slave fan outputs Wireless accessories for Series Power Part Number Description SED-DOR-P-5045 Wireless door switch SED-WIN-P-5045 Wireless window switch

4 4 Fan Coil Controller VTR83X0AXPXX WITH SC3500E5000 RELAY: HEATING/COOLING 4-PIPE FAN COIL UNIT WITH 3-SPEED FAN AND 2-POSITION VALVES WITH WIRELESS DOOR SWITCH Fan Airflow Direction Cooling Coil Heating Coil 2 POSITION COOLING VALVE 2 POSITION HEATING VALVE Onboard PIR Sensor SC3500E5000 AND / OR Door Switch SED-DOR-P-5000 Remote PIR Sensor Refer to the Wireless Door and Window Switch Installation Guide for the door pairing procedure. Configuration Parameter Name Configuration Settings Fan Menu L-M-H-A Fan cont. heat. On BI2 Door Dry Pulsed heating Off Pipe no. 4 Seq. operation Ht - Cl

5 Fan Coil Controller 5 SC3500E Tx/Rx 2 7 Vdc 3 Com BACnet+ BACnet- BACnet REF Tx / Rx 7 VDC Com UI 16 - BI1 UI 17 - BI2 SCom Sequence of Operation and Wiring Options Occupied Mode Setpoints revert to those defined by occupied cooling and heating. Stand-by Mode (only available when PIR motion detector sensor is used) Setpoints revert to those defined by stand-by cooling and heating. Unoccupied Mode Setpoints revert to those defined by unoccupied heating and cooling. Occupied Override Mode System reverts to occupied mode for duration determined by ToccTime parameter. On Call for Cool Cooling valve opens to maintain room temperature. Heating valve closed. On Call for Heat Heating valve opens to maintain room temperature. Cooling valve closed. Wireless Door Switch Wireless door switch automatically toggles occupancy. BACnet and Wireless communication models available (see Appendix B for network wiring). Can be configured for 2-pipe systems (without changeover). Binary inputs can be configured to control occupancy via door or window contact, remote motion sensor, or remote night setback.

6 6 Fan Coil Controller VTR8350AXXXX WITH SC3404E5000 RELAY: COOLING AND ELECTRIC HEAT 2-PIPE FAN COIL UNIT WITH 3-SPEED FAN, DEHUMIDIFICATION AND 2-POSITION VALVES Fan Airflow Direction Cooling Coil Electric Heating 2 POSITION COOLING VALVE SSR SOLID STATE RELAY (GENERIC) SC3404E5000 Configuration parameter name Configuration settings Fan menu L-M-H-A Fan cont. heat On Pulsed heating On Pipe no. 2 Seq. operation Ht-Cl

7 Fan Coil Controller 7 SC3404E Tx/Rx 2 7 Vdc Tx / Rx 7 VDC Com 3 4 Com RUI 1 5 SCom 6 RBI 2 7 SS 8 RS 9 Heat - 10 Heat + BACnet+ BACnet- BACnet REF UI 16 - BI1 UI 17 - BI2 SCom SOLIDSTATE RELAY (4-32Vdc) (-) (+) Sequence of Operation and Wiring Occupied Mode Setpoints revert to those defined by occupied cooling and heating. Stand-by Mode (only available when PIR motion detector sensor is used) Setpoints revert to those defined by stand-by cooling and heating. Unoccupied Mode Setpoints revert to those defined by unoccupied heating and cooling. Occupied Override Mode System reverts to occupied mode for duration determined by ToccTime parameter. On Call for Cool Cooling valve opens to maintain room temperature. On Call for Heat Electric heat operates to maintain room temperature. Cooling valve closes and dehumidification is disabled. On a Demand for Dehumidification Dehumidification achieved via cooling coil using reheat if necessary. Dehumidification only allowed in COOL mode or if cooling is enabled in AUTO mode. Dehumidification disabled if room temperature falls below low ambient lockout temperature, which is cooling setpoint minus configuration defined deadband value. Options BACnet and Wireless communication models available (see Appendix B for network wiring). Remote wall mount or return duct sensor ready. Can be configured for 2-pipe systems with changeover. Binary inputs can be configured to control occupancy via door or window contact, remote night setback, or provide alarms for service or filter monitoring. Universal input can be configured for changeover sensor.

8 8 Fan Coil Controller AXPXX WITH SC3504E5000 RELAY: HEATING/COOLING WITH CHANGEOVER SENSOR 2-PIPE FAN COIL UNIT WITH 3-SPEED FAN AND WIRELESS WINDOW SWITCH Window Switch SED-WIN-P-5000 Fan Airflow Direction Cooling / Heating Coil Supply Sensor 2 POSITION COOLING VALVE / HEATING VALVE SENSOR AND / OR C/O SENSOR Changeover Sensor: 10K Ohm type 2 Onboard PIR Sensor SC3504E5000 Supply Sensor: 10K Ohm type 2 Configuration Parameter Name Configuration Settings Fan Menu L-M-H-A Fan cont On BI1 Window RUI1 COS Pipe No 2 Seq. operation Cool

9 Fan Coil Controller 9 SC3504E Tx/Rx 2 7 Vdc Tx / Rx 7 VDC 3 Com 4 RUI 1 5 SCom 6 RBI 2 7 SS 8 RS BACnet+ Com BACnet- BACnet REF UI 16 - BI1 UI 17 - BI2 SCom Sequence of Operation and Wiring Occupied Mode Setpoints revert to those defined by occupied cooling and heating. Stand-by Mode (only available when PIR motion detector sensor is used) Setpoints revert to those defined by stand-by cooling and heating. Supply Air Sensor Only used for monitoring. Shows automatically if sensor is connected. Wireless Window Switch Wireless window switch automatically locks out heating/cooling when window is opened. Unoccupied Mode Setpoints revert to those defined by unoccupied heating and cooling. Occupied Override Mode System reverts to occupied mode for duration determined by ToccTime parameter. On Call for Cool If supply water temperature is less than 24 C (75F), valve opens to maintain room temperature, else the valve closes. On Call for Heat If supply water temperature is greater than 25 C (77F), valve opens to maintain room temperature. Options BACnet and Wireless communication models available (see Appendix B for network wiring). Remote wall mount or duct sensor ready. Binary inputs can be configured to control occupancy via door or window contact, remote motion sensor, remote night setback, or provide alarms for service or filter monitoring.

10 10 Fan Coil Controller VTR8350AXXXX WITH SC3400E5000 RELAY: COOLING AND ELECTRIC HEAT 2-PIPE FAN COIL UNIT WITH 3-SPEED FAN, DEHUMIDIFICATION AND 2-POSITION VALVES Fan Airflow Direction Cooling Coil Electric Heating 2 POSITION COOLING VALVE SSR SOLID STATE RELAY (GENERIC) SC3400E5000 Configuration parameter name Configuration settings Fan menu L-M-H-A Fan cont. heat. On Pulsed Heating On Pipe No 2 Seq. operation Cool-Rht

11 Fan Coil Controller 11 SC3400E Tx / Rx 7 VDC Com BACnet+ BACnet- BACnet REF UI 16 - BI1 UI 17 - BI2 SCom SOLIDSTATE RELAY (4-32Vdc) (-) (+) Sequence of Operation and Wiring Occupied Mode Setpoints revert to those defined by occupied cooling and heating. Stand-by Mode (only available when PIR motion detector sensor is used) Setpoints revert to those defined by stand-by cooling and heating. Unoccupied Mode Setpoints revert to those defined by unoccupied heating and cooling. Occupied Override Mode System reverts to occupied mode for duration determined by ToccTime parameter. On Call for Cool Cooling valve opens to maintain room temperature. On Call for Heat Electric heat operates to maintain room temperature. Cooling valve closed and dehumidification is disabled. On a Demand for Dehumidification Dehumidification achieved via cooling coil using reheat if necessary. Dehumidification only allowed in COOL mode or if cooling is enabled in AUTO mode. Dehumidification disabled if room temperature falls below low ambient lockout temperature, which is cooling setpoint minus configuration defined deadband value. Options BACnet and Wireless communication models available (see Appendix B for network wiring). Binary inputs can be configured to control occupancy via door or window contact, remote motion sensor, remote night setback, or provide alarms for service or filter monitoring.

12 12 Fan Coil Controller AXXXX WITH SC3514E5000 RELAY: HEATING/COOLING 2-PIPE FAN COIL UNIT WITH 3-SPEED FAN, FRESH AIR DAMPER AND 2-POSITION VALVES Fresh Air Fan Airflow Direction Cooling / Heating Coil Supply Sensor DAMPER 2 POSITION COOLING VALVE / HEATING VALVE SENSOR Return Air SC3514E5000 C/O SENSOR Supply Sensor: 10K Ohm type 2. Changeover Sensor: 10K Ohm type 2. Configuration Parameter Name Configuration Settings Fan menu L-M-H-A Fan cont. heat On BI1 Window RUI1 COS Pulsed Heating Occ Out Pipe no. 2 Seq. operation Cool

13 Fan Coil Controller 13 SC3514E Tx/Rx 2 7 Vdc Tx / Rx 7 VDC 3 Com 4 RUI 1 5 SCom 6 RBI 2 7 SS 8 RS 9 OCC - 7Vdc RELAY COIL BACnet+ BACnet- BACnet REF UI 16 - BI1 UI 17 - BI2 Com SCom Sequence of Operation and Wiring Occupied Mode Setpoints revert to those defined by occupied cooling and heating. The occupancy output opens fresh air damper to minimum position. Stand-by Mode (only available when PIR motion detector sensor is used) Setpoints revert to those defined by stand-by cooling and heating. Unoccupied Mode Setpoints revert to those defined by unoccupied heating and cooling. The fresh air damper closes. Occupied Override Mode System reverts to occupied mode for duration determined by ToccTime parameter. On Call for Cool If supply water temperature is less than 24 C (75F), valve opens to maintain room temperature, else the valve closes. On Call for Heat If supply water temperature is greater than 25 C (77F), valve opens to maintain room temperature, else the valve closes. Supply Air Sensor Only used for monitoring. Shows automatically if sensor is connected. Options BACnet and Wireless communication models available (see Appendix B for network wiring). Remote wall mount or return duct sensor ready. Binary inputs can be configured to control occupancy via door or window contact, remote motion sensor, remote night setback, or provide alarms for service or filter monitoring.

14 14 Fan Coil Controller AXXXX WITH SC3500E5000 AND SC3300E5000 RELAYS: HEATING/COOLING 4-PIPE FAN COIL UNIT WITH 3-SPEED FAN AND 2-POSITION VALVES WITH SLAVE RELAY PACK Fan Airflow Direction Cooling Coil Heating Coil 2 POSITION COOLING VALVE 2 POSITION HEATING VALVE SC3300E5000 SC3500E5000 Configuration Parameter Name Configuration Settings Fan menu L-M-H-A Fan cont. heat On Pipe No 4 Seq. operation Ht-Cl

15 Fan Coil Controller 15 SC3500E5000T 1 2 Tx / Rx 7 VDC Com 3 SC3300E BACnet+ BACnet- BACnet REF UI 16 - BI1 UI 17 - BI2 SCom Sequence of Operation and Wiring Options Occupied Mode Setpoints revert to those defined by occupied cooling and heating. Stand-by Mode (only available when PIR motion detector sensor is used) Setpoints revert to those defined by stand-by cooling and heating. Unoccupied Mode Setpoints revert to those defined by unoccupied heating and cooling. Occupied Override Mode System reverts to occupied mode for duration determined by ToccTime parameter. On Call for Cool Cooling valve opens to maintain room temperature. Heating valve closes. On Call for Heat Heating valve opens to maintain room temperature. Cooling valve closes. BACnet and Wireless communication models available (see Appendix B for network wiring). Can be configured for 2-pipe systems without changeover. Binary inputs can be configured to control occupancy via door or window contact, remote motion sensor, remote night setback, or provide alarms for service or filter monitoring.

16 16 Fan Coil Controller AXPXX WITH SC3504E5000 RELAY: COOLING AND ELECTRIC HEAT 2-PIPE FAN COIL UNIT WITH 3-SPEED FAN AND 2-POSITION VALVES WITH WIRED WINDOW SWITCH Window Switch SED-WIN-P-5000 Fan Airflow Direction Cooling / Heating Coil Supply Sensor 2 POSITION COOLING VALVE / HEATING VALVE SENSOR AND / OR C/O SENSOR Changeover Sensor: 10K Ohm type 2 Onboard PIR Sensor SC3504E5000 Supply Sensor: 10K Ohm type 2 Configuration Parameter Name Fan menu L-M-H-A Fan cont. heat On BI1 Window RUI1 COS Pipe no. 2 Seq. operation Cool Configuration Settings

17 Fan Coil Controller 17 SC3504E Tx/Rx 2 7 Vdc 3 Com 4 RUI 1 5 SCom 6 RBI 2 7 SS 8 RS BACnet+ BACnet- BACnet REF UI 16 - BI1 UI 17 - BI2 Tx / Rx 7 VDC Com SCom BI1 (Window) SCom Sequence of Operation and Wiring Occupied Mode Setpoints revert to those defined by occupied cooling and heating. Stand-by Mode (only available when PIR motion detector sensor is used) Setpoints revert to those defined by stand-by cooling and heating. Unoccupied Mode Setpoints revert to those defined by unoccupied heating and cooling. Occupied Override Mode System reverts to occupied mode for duration determined by ToccTime parameter. On Call for Cool If supply water temperature is less than 24 C (75F), valve opens to maintain room temperature, else the valve closes. On Call for Heat If supply water temperature is greater than 25 C (77F), valve opens to maintain room temperature, else the valve closes. Supply Air Sensor Only used for monitoring. Shows automatically if sensor is connected. Wired Window Switch The window switch automatically locks out heating/cooling when window opens. Options BACnet and Wireless communication models available (see Appendix B for network wiring). Models available with factory installed PIR sensor. Remote wall mount or duct sensor ready. Can be configured for 2-pipe systems with changeover. Binary inputs can be configured to control occupancy via door or window contact, remote night setback, or provide alarms for service or filter monitoring. Universal input can be configured for changeover sensor.

18 18 Fan Coil Controller AXPXX WITH SC3500E5000 RELAY: HEATING/COOLING 4-PIPE FAN COIL UNIT WITH 3-SPEED FAN AND 2-POSITION VALVES WITH WIRED DOOR SWITCH Fan Airflow Direction Cooling Coil Heating Coil 2 POSITION COOLING VALVE 2 POSITION HEATING VALVE Onboard PIR Sensor SC3500E5000 AND / OR Door Switch SED-DOR-P-5000 Remote PIR Sensor Configuration Parameter Name Configuration Settings Fan menu L-M-H-A Fan cont. heat On BI2 Door Dry Pipe No 4 Seq. Operat Ht-Cl

19 Fan Coil Controller 19 SC3500E Tx/Rx 2 7 Vdc 3 Com BACnet+ BACnet- Tx / Rx 7 VDC Com BACnet REF UI 16 - BI1 UI 17 - BI2 SCom BI2 (Door) SCom Sequence of Operation and Wiring Options Occupied Mode Setpoints revert to those defined by occupied cooling and heating. Stand-by Mode (only available when PIR motion detector sensor is used) Setpoints revert to those defined by stand-by cooling and heating. Unoccupied Mode Setpoints revert to those defined by unoccupied heating and cooling. Occupied Override Mode System reverts to occupied mode for duration determined by ToccTime parameter. On Call for Cool Cooling valve opens to maintain room temperature. Heating valve closes. On Call for Heat Heating valve opens to maintain room temperature. Cooling valve closes. Door Switch Door switch automatically toggles occupancy. BACnet and Wireless communication models available (see Appendix B for network wiring). Models available with factory installed PIR sensor. Can be configured for 2-pipe systems without changeover. Binary inputs can be configured to control occupancy via door or window contact, remote motion sensor, remote night setback, or provide alarms for service or filter monitoring.

20 20 Fan Coil Controller APPENDIX A - PASSIVE INFRA-RED (PIR) MOTION DETECTOR COVER SPECIFICATIONS PIR cover sequence of operation Initially, the controller is in Stand-by mode. Stand-by setpoints are used at the controller. As soon as the PIR detects motion, the Occupancy status switches to Occupied and the Stand-By Time timer is reset. The Occupied setpoints are used. If no motion is detected in the room for the entire Stand-By Time duration (adjustable parameter), the room then switches to Stand-by mode and stand-by setpoints are used. While in Stand-by mode, if no motion is detected for the entire Unoccupied Time period (adjustable parameter), the room switches to Unoccupied mode and uses its Unoccupied setpoints. While in Stand-By or Unoccupied mode, any motion will switch the room back to Occupied mode. Typical Detection Pattern for PIR Lens Horizontal Angles (Typical) Recommended installation height for PIR sensor: 4-5 ft. / m Transverse motion: 4-5 ft/s / 1.5 m/s Vertical Angle (Typical) Sensor Ranges A = 20 ft. / 6.1 m B = 14 ft. / 4.3 m C = 11 ft. / 3.4 m 40 O A Center 30 O 20 O B B 20 O 20 O C C 20 O Center Energy savings The PIR can maximize your energy saving from 10-30% by relaxing temperature set points in unoccupied zones during scheduled periods. Energy Usage (KWh) Typical Savings of 10-30% 85 50% % % % % % Time of Day (EST) Typical Consumption PIR Thermostat Consumption Savings Saving Percentage

21 Fan Coil Controller 21 APPENDIX B - OPTION NETWORK WIRING IF COMMUNICATING MODELS ARE USED BACnet communication wiring Wireless Communication BACnet thermostat 1 BACnet thermostat 2 BACnet thermostat ref + - ref + - ref Notes: - Wiring should be daisy chained - Respect polarity - If using 2 conductors shielded wires, connect the shield of each feed together on the back of the controller. ONLY ground the shield at one location. DO NOT connect the shield to the ref terminal. No communication wires required APPENDIX C - CONTROLLERS OCCUPANCY SEQUENCE OF OPERATION SCHEMATIC Setpoints Unoccupied cool 26.5 C 80 F Stand-by cool Occupied cool Occupied heat Stand-by heat Unoccupied heat Movement detected - Stand-by timer reset 22 C 72 F Deadband Stand-by time Into Stand-by mode - Unoccupied timer reset 24.5 C 76 F Deadband 70 F 70 F 21 C 21 C Unoccupied time Into Unoccupied mode 62 F 16.5 C Next movement detected 66 F 19 C Deadband 22 C 72 F Time

22 22 Fan Coil Controller APPENDIX D - SED SERIES - WIRELESS DOOR & WINDOW SWITCH Wireless ZigBee Pro door & window switch Wireless door switches used with an onbaord or remote PIR sensor provide advanced local occupancy routines allowing for increased energy savings during occupied hours without sacrificing occupant comfort. Wireless window switches are used to monitor exterior windows and or patio and balcony doors being opened or closed. This prevents unnecessary energy consumption by the tenants. Fan Coil Terminal Equipment Controllers with SED Series ZigBee wireless switches can be used in network ready mode with or without integration to a central management system to allow for advanced functions such as central reservation and occupancy functions. A combination of up to twenty SED Series door and or window switches can be used simultaneously with a single Fan Coil Terminal Equipment Controller. The SED Series switches are factory delivered with 2 AAA batteries and are ready to be installed, configured and used right out of the box. Due to the extremely small current consumption of the switches, the expected battery life is approximately 10 years and is equivalent to the battery shelf life. No tools are required for commissioning or servicing the door switch. A very simple interface with an onboard LED & hidden switch provides all the required functions for local interaction. Local information for battery life and connectivity (heartbeat) are provided at the Fan Coil Terminal Equipment Controller local display through the ZigBee wireless network. Each switch is factory supplied with a magnet, a locking security tamper proof screw and self tapping mounting screws. Model selection Window Switch Door Switch SED-WIN-P-5045 SED-DOR-P-5045 LED (switch side) Pull Tab Hidden Switch

23 Fan Coil Controller 23 APPENDIX E - CONTROLLER & SC3000 RELAY PACK Product overview The Fan Coil Controller offers a new cost-effective solution for upgrading line-voltage fan coil unit thermostats. The terminal Equipment Fan Coil Unit Controllers are available as BACnet MSTP or wireless ZigBee Pro networked models. No previous building automation training is required for the easy installation and commissioning process. Installation can be completed in approximately fifteen minutes, reducing costs and providing increased savings. The SC3000 Series Line Voltage Switching Transformer Relay Pack Controllers has been designed for silent control of typical high voltage fan coil device loads (90 to 277 VAC multi-voltages capable). It uses advanced microprocessor-based circuitry with a built-in transformer that eliminates all typical required peripheral components when automating a Fan Coil unit with traditional building automation systems. The SC3000 Series Line Voltage Switching Transformer Relay Pack(s) operate as slave unit(s) under the control of a single master Terminal Equipment Controller. A single Terminal Equipment Controller can control up to 10x SC3000 Series Relay Pack. The SC3000 Series Relay Packs are line-powered units. The extremely compact unit locally contains all the relay outputs for fan switching and valve control. Models are also available for extra monitoring / control inputs of the Fan Coil Units. Typical fan coil unit setup Typical Fan Coil Unit H C C C 1 Tx/Rx 2 7 Vdc Power Supply 3 Com SC3404E RUI 1 5 SCom 6 RBI 2 Electrical Cabinet WHITE Vac - 50/60 Hz 1/2HP + 5A Max Comb. or 13A+ 5A Max Comb Amb. Temp. 50oC 7 SS 8 RS BLACK 9 Heat 10 Heat + FAN LOW 1/2 HP or 13A FAN MED Max 5A Max RED BLUE FAN HIGH BROWN COOL YELLOW 1 Tx/Rx 2 7 Vdc 3 Com Power Supply 4 RUI 1 5 SCom xxx-xxxx-xx 6 RBI 2 WHITE Vac - 50/60 Hz 1/2HP + 5A Max Comb. or 13A+ 5A Max Comb Amb. Temp. 50oC 7 SS 8 RS 9 Heat 10 Heat + BLACK FAN LOW 1/2 HP or 13A FAN MED Max 5A Max RED BLUE FAN HIGH BROWN COOL YELLOW Mixed daisy chained and Star topology Daisy chained topology Star topology Viconics Technologies Inc Langelier Blvd. St.-Leonard Quebec Canada sales@viconics.com H1P 3K9 Tel: (514) Low Voltage Connections to Controller Fax: (514) November 2014