Worcester 12/18 User Manual

ELECTRICS
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR HEATSLAVE EXTERNAL 12/18-18/25-25/32
8 716 113 389d (03/2010)
29
INSTALLATION
RESET
White
ELECTRICS
Electrical components:
1 Printed circuit board
2 Thermostat - boiler high limit
3 Thermostat - DHW control
4 Thermostat - CH control
5 Indicator lamp - boiler mode
6 Indicator lamp - lock-out
7 Manual reset - overheat thermostat
8 Manual reset - flue overheat thermostat
9 Manual reset - burner lock-out
10 Manual reset - tank overheat thermostat
11 External programmer (not supplied)
12 Burner socket
13 Burner plug
14 Burner control box
15 Flow switch
16 Circulating pump
17 Diverter valve
18 Frost stat
19 Frost stat
Wire colour code:
br - Brown
bl - Blue
gy - Green/Yellow
r - Red
w - White
y - Yellow
g - Grey
bk - Black
or - Orange
pk - Pink
8 716 113 389d 30/3/10 14:01 Page 29

Worcester 12/18 Specifications

General

Brand	Worcester
Model	12/18
Category	Boiler
Language	English