33
SECTION 4 - SERVICING INSTRUCTIONS
GENERAL LOCATION OF CONTROLS
GAS ORIFICE
GAS VALVE
VENT PRESSURE
SWITCH
AIR PRESSURE
SWITCH
T&P GAUGE
BONDING LUG
LOCATION
FLOW SWITCH
RIGHT ACCESS
PANEL
DIRECT VENT
ACCESS PANEL
135ºF & 160ºF
HIGH LIMITS
GAS CONNECTION
3/4 NPT
LEFT ACCESS
PANEL
BONDING LUG
LOCATION
(OPTIONAL)
WIRING BOX
(SUPPLY POWER)
BLOWER RELAY
TRANSFORMER
PRV
TEMPERATURE
SENSOR
DRAIN VALVE
Fig. 25: General Location of Controls