Layout & Components &-7 - Worcester Greenstar 12i System Instruction Manual

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LAYOUT & COMPONENTS
The diagram opp0$ite shows
the
controls in the
se:rvidng position and excludos tho outer caso .
1 AIR I GAS MANIFOlD
2 FAN
3 AIR I GAS ADJUSTMENT SCREW
4 GAS VALVE (PRETIL CE471
SHOWN. AN
AlJERNATIVE VALVE
MAY
BE USED
ON
LATER
APPliANCES)
5
INLET PRESSURE l£ST f'QlNT
6
EXPANSION VESSEL
7 WALL MOUNTING FRAME
8
COVER FOR EXTERNAL WIRING
CONNECTIONS
9 CONOENSAT£ CONNECTION FROM
18 ......... .
HEAT EXCHANGER
11
12 ••••
a--·····.
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9 •''
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23
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• 21
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••• • 32
10 FWE PRESSURE SWITCH
11 FAN PRESSURE TEST POINT
12 MANUAL VENT POINT
13
IGNOONANDFLAMESENSEELECTROOES
14
OVERHEAT THERMOSTAT
15 FLAME VIEWING MIRROR REPLACED
BY RETAINING BRACKET ON LATER
APPLIANCES
16
SECURING NUT, AIR /
GAS MANIFOLD CLAMP
17 SENSOR· BOILER FLOW
18 FLUE AIR PRESSURE SWITCH
CONNECTION
19
FLUE OVERHEAT THERMOSTAT
20 ACCESS POINT FOR CLEANING HEAT
EXCHANGER/SUMP
21 REMOVABLE TOP CASE PANEL FOR
SERVICING
22 GAS INLET CONNECTION 22mm
•• • 19
COMPRESSION
23 TRAP
I SYPHON
24 TRAP
I SYPHON OUTLET
CONNECTION ( 22mm
PLASTIC PIPE)
..... ro
25 FLOW
26 RETURN
71 DRAIN POINT
28 S1UCONE TUBE
(USE
TO VENT AIR
FROM
HEAT EXCHANGER)
29 PUMP
I · ' ..
.30
30 sYSTEM PRESSURE GAUGE
31 CONTROL PANE LIN SERVICE
POSITION
32
HEA T EXCHANGER
33 ACCESS COVER FOR TRANSFORMER
&
PCB
•27
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LAYOUT & COMPONENTS