![background image](http://html.mh-extra.com/html/grant/monowave-series/monowave-series_installation-servicing-and-user-instructions-manual_2256805020.webp)
Section 5: Electrical
Page 20
5.9 PrE-PLUmBEd monoWAVE cYLindEr WitH HEAt PUmP
figure 5-2:
Pre-plumbed cylinder (buffer option)
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
230V
50HZ
L N E
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
GreyGrey
Grey
OrangeOrange
Orange
HW OFF
2 1 3
Room
Stat 2
2 1 3
Room
Stat 1
Pre - wired on cylinder
Installer system wiring
N
E L
System Circulator
NOT supplied
4
N
Wiring Centre
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 - HW Priority S Plan Neil Sawers - 3 Zone
3 Relay arrangement.
DRAWING NUMBER: List
REVISION: 00