Worcester Greenstar Ri - Layout and Components; Boiler Component Identification; Plumbing Connection Points

LAYOUT & COMPONENTS
The diagram opposite shows the controls in the
servicing position and excludes the outer case,
inner covers and fascia panel.
1 AIR / GAS MANIFOLD
2FAN
3 AIR / GAS ADJUSTMENT SCREW
4GAS VALVE
5 INLET PRESSURE TEST POINT
6 BOILER POWER SWITCH
7 FLAME INDICATOR (GREEN)
8 COVER FOR EXTERNAL WIRING
CONNECTIONS
9 POWER AND FAULT INDICATOR (BLUE)
10 BOILER THERMOSTAT AND RESET KNOB
11 FLUE PRESSURE SWITCH
12 FAN PRESSURE TEST POINT
13 MANUAL VENT POINT
14 IGNITION AND FLAME SENSE ELECTRODES
15 OVER-HEAT THERMOSTAT
16 FLAME VIEWING MIRROR
17 SECURING NUT, AIR /
GAS MANIFOLD CLAMP
18 SENSOR - BOILER FLOW
19 FLUE AIR PRESSURE SWITCH
CONNECTION
20 FLUE OVERHEAT THERMOSTAT
21 ACCESS POINT FOR CLEANING HEAT
EXCHANGER
22 REMOVABLE TOP CASE PANEL FOR
SERVICING
23 GAS INLET CONNECTION 22mm
COMPRESSION
24 TRAP / SYPHON
25 TRAP / SYPHON OUTLET
CONNECTION ( 3/4” PLASTIC PIPE)
26 FLOW CONNECTION 22mm
COMPRESSION
27 DRAIN POINT
28 RETURN CONNECTION 22mm
COMPRESSION
29 HEAT EXCHANGER
30 GAS COCK (ACCESS POINT)
31 SILICONE TUBE (USE TO VENT AIR
FROM HEAT EXCHANGER)
LAYOUT & COMPONENTS
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER BOSCH GREENSTAR Ri
8 716 109 699a (05/05)
6
APPLIANCE
INFORMATION