Worcester Greenstar 12i System Instruction Manual page 8

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LAYOUT & COMPON ENTS
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LAYOUT
&
COMPONENTS
34 SYSTEM PUMP
35 UNUSED PORT
36 AUTO AIR VENT
37 FLOW CONNECTION FROM BOILER
HEAT EXCHANGER
38 FLOW CONNECTION TO
SERVICE VALVE
39 DRAIN POINT
40 RETURN CONNECTION TO
SERVICE VALVE
41 OPTIONAL INTEGRAL DIVERTERVALVE
POSITION
42 PRESSURE REUEF VALVE
43 COMPACT HYDRAUUC MOUNnNG
SCREW (2) TO BOILER
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44 CH TEMPERATURE CONTROL
45 MAIN$ ON/OFF INDICATOR/
DIAGNOSTIC UGHT (BLUE)
46 SERVICE MODE BUTTON
47 BURNER ON INDICATOR UGHT (GREEN)
48 MASTER SWITCH ON/OFF
49 NOTUSED
50 FAULT RESET BUTTON
51 SYSTEM PRESSURE GAUGE
52 POSITION FOR OPnONAL
PROGRAMMER
53 INTERNAL BYPASS WITHIN
PLA5nC MOULDING