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WD51/2/1997 Chapter 7 : Replacement Of Parts
INDEX
7.0
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
7.10
7.11
7.12
7.13
7.14
Installation & Servicing Instructions
7. REPLACEMENT OF PARTS
GENERAL
PRECAUTIONS
ACCESS
PROCEDURES - GENERAL
ELECTRICAL
7.4.1
ON/OFF SWITCH
7.4.2
BOILER THERMOSTAT
7.4.3
NEONS
7.4.4
FLOW OVERHEAT, FLOW HIGH LIMIT & FLUE PROTECTION
THERMOMSTATS
7.4.5
WATER PRESSURE SWITCH
7.4.6
IGNITION CONTROL BOX
7.4.7
AIR PRESSURE SWITCH
7.4.8
COMBUSTION BLOWER
7.4.9
GAS CONTROL VALVE
7.4.10 GAS LOW PRESSURE SWITCH
GAS ORIFICE
SPARK IGNITION/FLAME DETECTION ELECTRODE
BURNER HEAD & BURNER
HEAT EXCHANGER
AIR FILTER
CONDENSATE TRAP
PRESSURE GAUGE
SIGHT GLASS
HT IGNITION LEAD
AIR ORIFICE
The Keston 170 Condensing Boilers
Page : 41
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