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Section 5: Electrical
Page 21
figure 5-3:
Pre-plumbed cylinder (volumiser option)
Wiring Centre
5A
L N E
5
6
7
8
9
10
2-Port Zone Valve - HW
2-Port Zone Valve - Z1
Motor HTG
HW
Blue
Green/Yellow
Motor
Blue
Green/Yellow
Brown
Brown
11 12
HW ON
N L
1
2 3
Horstmann Channel Plus H37XL
E
CH ON
CH OFF
5
CH ON
COMMON
CH OFF
4
6
240V
50HZ
L N E
N
2-Port Zone Valve - Z2
Motor HTG
Blue
Green/Yellow
Brown
Hot Water
Heating
Earth and some Neutral connections
have been excluded for clarity.
COMMON
COMMON
Link
GreyGrey
Grey
Orange
Orange
Orange
HW OFF
2 1 3
Room
Stat 2
2 1 3
Room
Stat 1
Pre - wired on cylinder
Installer system wiring
N
Overheat
Stat
1
C
2
Control
Stat
1
C
2
Link
N
E
E
Dual Thermostat
17
18
19
20
21
22
23
24
25
1
2
3
4
5
6
7
8
Link
ASHP Terminals
4 Core ( 3 + E )
Volt free connections from
Heating and Hot Water Zone
Valves to Terminals 18 - 20
on ASHP Terminal PCB
via Relays on Grant EP0002
Grant EP002 Heat Pump Interface
3
2
1
1
2
3
4
RL1
RL2
RL3
Hot Water (Yellow)
Common (Red)
Heating (Blue)
DATE: 25th June 2018
SCALE: A4: 1:1
DRAWN BY: T. K. Lavery
CHECKED BY: P. Stanley
□
GRANT ENGINEERING UK LTD
Hopton Industrial Estate Devizes SN10 2EU
DRAWING NAME: ASHP - Volumeiser 3 Zone
DRAWING NUMBER: List
REVISION: 00