2. EPH Controls
  3. CR2_P

EPH Controls CR2_P Product information

  • Hello! I've reviewed the wiring diagram for the EPH Controls Y Plan Hardwired Pack, which includes the R27-HW Programmer, a motorized valve, thermostats and a wiring center. This document provides wiring instructions and cautions for proper installation, and I'm ready to answer any questions you have about the components, wiring or considerations highlighted in the document.
  • What components are included in the Y Plan Hardwired Pack?
    What should I do before wiring?
    What variations in boiler wiring should I be aware of?
CR21P / CR22P / CR28P
Y Plan Hardwired Pack Wiring Diagram
Page 1 of 1
Components:
1 x 2 Channel Programmer
1 x 3 Port Motorised Valve
1 x Pipe / Cylinder Thermostat
1 x Room Thermostat
1 x Wiring Centre
SPUR FUSED @ 3A R27-HW
Programmer
WIRING CENTRE
PUMP
BOILER
N L
12 4
MOTORISED VALVE WRP
CM2
N L 1 2
1 2 4 8 5 9
3 4
HW
ON
HW
OFF
HTG
ON
Pipe / Cylinder Thermostat
Room Thermostat
6
3
8
10
1
ORANGE
BLUE
GREY
WHITE
EARTH
N
L
1
3
7
1
2
CCOM
N/O
N/C
5
6
8
1
2
1COM
N/O
9
10
N
L
1
3
7
123456789101112
HW
ON
N N L
LIVE TO
BOILER
& PUMP
CYL
STAT
N/O
CYL
STAT
N/C
ROOM
STAT
N/O
WHITE
CORE OF
VALVE
HTG
ON
ROOM
STAT
COM
HW OFF &
GREY
CORE OF
VALVE
ORANGE
CORE OF
VALVE
CYL
STAT
COM
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
EPH Controls Ireland
[email protected] www.ephcontrols.com
EPH Controls UK
[email protected] www.ephcontrols.co.uk
20220916_CR2_P_WD_PK
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