LAYOUT & COMPONENTS
The diagram opposite shows the controls in the servicing position and excludes the outer case.
1AIR / GAS MANIFOLD
2FAN
3AIR / GAS ADJUSTMENT SCREW
4GAS VALVE
5INLET PRESSURE TEST POINT
6EXPANSION VESSEL
7WALL MOUNTING FRAME
8COVER FOR EXTERNAL WIRING CONNECTIONS
9CONDENSATE CONNECTION FROM HEAT EXCHANGER
10PLATE TO PLATE
DHW HEAT EXCHANGER
11FLUE PRESSURE SWITCH
12FAN PRESSURE TEST POINT
13MANUAL VENT POINT
14IGNITION AND FLAME SENSE ELECTRODES
15OVERHEAT THERMOSTAT
16FLAME VIEWING MIRROR
17SECURING NUT, AIR / GAS MANIFOLD CLAMP
18SENSOR - BOILER FLOW
19FLUE AIR PRESSURE SWITCH CONNECTION
20FLUE OVERHEAT THERMOSTAT
21ACCESS POINT FOR CLEANING HEAT EXCHANGER/SUMP
22REMOVABLE TOP CASE PANEL FOR SERVICING
23GAS INLET CONNECTION 22mm
COMPRESSION
24TRAP / SYPHON
25TRAP / SYPHON OUTLET CONNECTION ( 22mm PLASTIC PIPE)
26MAINS COLD WATER IN
27CH FLOW
28DHW OUT
29CH RETURN
30DRAIN POINT
31SILICONE TUBE (USE TO VENT AIR FROM HEAT EXCHANGER)
32PUMP
33SYSTEM PRESSURE GAUGE
34CONTROL PANEL IN SERVICE POSITION
35HEAT EXCHANGER
36ACCESS COVER FOR TRANSFORMER & PCB
APPLIANCE | INFORMATION |
6
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR 24 i junior/28 i junior 8 716 107 336b (11/05)
