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Section 5: Electrical
Page 22
5.10 StAndArd monoWAVE cYLindEr WitH HEAt PUmP
figure 5-4:
Standard cylinder (buffer option)
5A
L N E
5
6
7
8
9
10
2-Port Zone Valve - HW
2-Port Zone Valve - HTG
Motor HTG
HW
Blue
Green/Yellow
Motor
Blue
Green/Yellow
Brown
Brown
11 12
240V
50HZ
L N E
Earth and some Neutral connections
have been excluded for clarity.
Grey
Grey
Orange
Orange
2 1 3
Room
Stat 1
N
Grant 2-Channel
Wall Mounted
Programmer ESKIT
L
1 2 3 4
OFF OFF ON ON
HW HT HW HT
4
Wiring Centre
Hot Water
Heating
N
E L
System Circulator
NOT supplied
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)
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 - HW Priority S Plan Neil Sawers 2 Zone
3 Relay arrangement
DRAWING NUMBER: List
REVISION: 00