AERCO KC1000 Heater Mar 2011 - Manual (Page 44)

SAFETY DEVICE TESTING
5-6
IGNITION
POSITION
SWITCH
PURGE
POSITION
SWITCH
169 170 172 171
STEPPER
MOTOR
DIAL
BL
O
W
ER
BU
R
N
ER
Figure 5.8
Air/Fuel Valve Purge and Ignition Switch
Locations
5.12 SAFETY PRESSURE RELIEF
VALVE TEST
Test the Safety Pressure Relief Valve in
accordance with ASME Boiler and Pressure
Vessel Code, Section VI.