EPH CONTROLS CR3PU 3 Channel Hardwired Unvented Pack User Manual
- June 1, 2024
- EPH CONTROLS
Table of Contents
EPH CONTROLS CR3PU 3 Channel Hardwired Unvented Pack
Specifications:
- Product Models: CR3PU, CR322PU, CR328PU
- Type: 3 Channel Hardwired Unvented Pack
- Components: 1 x 3 Channel Programmer, 2 x 2 Port Motorised Valve, 2 x Room Thermostat, 1 x Wiring Centre
Product Usage Instructions
-
Safety Precautions:
Before proceeding with the installation or wiring of the product, ensure to consult the boiler installation instructions to understand any specific requirements or variations in wiring schematics. -
Wiring Setup:
Refer to the provided wiring diagram for proper connection of components including the programmer, motorised valves, room thermostats, and wiring centre. Ensure that all connections are secure and follow the color-coding specified in the diagram. -
Power Supply:
Verify if a permanent power supply is required for the system to function correctly. Make sure to adhere to any voltage specifications mentioned in the boiler manufacturer’s instructions. -
Overrun Function:
Check if an overrun function needs to be set up as per the boiler requirements. This function may be necessary for proper operation and safety. -
Motorised Valves Signal:
Ensure that a volt-free signal from the motorised valves limit switches is correctly integrated into the wiring setup. This signal is crucial for the communication between components.
Frequently Asked Questions (FAQ):
-
Q: What should I do if I encounter difficulties during the wiring process?
A: If you face challenges while wiring the components together, double-check the wiring diagram provided and ensure that each connection is accurately made. If issues persist, contact technical support for assistance. -
Q: Is it necessary to connect both room thermostats for the system to operate?
A: Yes, both room thermostats need to be properly connected according to the wiring diagram to ensure efficient control of heating zones and overall system functionality.
CR3PU / CR322PU / CR328PU
3 Channel Hardwired Unvented Pack Wiring Diagram
- Components:
- 1 x 3 Channel Programmer
- 2 x 2 Port Motorised Valve
- 2 x Room Thermostat
- 1 x Wiring Centre
CAUTION!
- Consult the boiler installation instructions before wiring!
- Boiler manufacturers wiring schematics may vary:
- A permanent power supply may be required An overrun function may be required
- A volt-free signal from the motorised valves limit switches may be required
SPUR FUSED @ 3A
CM2
Room Thermostat (1)
CM2
Room Thermostat (2)
R37V2
Programmer
WIRING CENTRE
HEATING VALVE (ZV1)
HEATING VALVE (ZV2)
- EPH Controls Ireland
- 021 471 8440 Cork, T12 W665
- EPH Controls UK
- 01933 322 072 Harrow, HA1 1BD