Addison UHAS 150, Инструкция по установке, эксплуатации и обслуживанию

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UHA S
TANDARD
U
NIT
H
EATER
I
NSTALLATION
O
PERATION AND
S
ERVICE
M
ANUAL
44 of 59
SECTION 15: REPLACEMENT PARTS
Carbon Monoxide Hazard
WARNING
Use only genuine ADDISON ® replacement parts per this installation, operation and service
manual.
Failure to follow these instructions can result in death, electric shock, injury or property damage.
Explosion Hazard
DANGER
Electrical Shock Hazard
Fire Hazard
See warnings and important information on Page
35, Section 13 before removing or replacing parts.
Burner Components
All serviceable burner parts are accessed by the
hinged door on the side of the heater.
15.1 Gas Valve
Remove the gas supply pipe at the heater inlet.
Follow instructions on
Page 45, Section 15.2
through Page 47, Section 15.3.1 to remove gas
valve/manifold.
Replace in reverse order. Verify that the gas flow
direction of the valve is correct. Use a minimum
amount of gas seal on the thread joint. Check that
all the joints are leak free. Reset gas valve.
See
Page 33, Section 11.2.2 .
IT IS IMPORTANT THAT ONLY THE CORRECT
GAS VALVE IS USED WHEN REPLACING THESE
CONTROLS.
½PSI
IN
C
ON
OFF
½PSI
IN
C
ON
OFF
LO
HI
Single Stage
Gas Valve
Two Stage
Gas Valve
Description Part Number
Single Stage Gas Valve, NG (Models UHA[X][S] 150 - 250) 90032505
Single Stage Gas Valve, LP (Models UHA[X][S] 150 - 250) 90032506
Single Stage Gas Valve, NG (Models UHA[X][S] 300 - 400) 90032520
Single Stage Gas Valve, LP (Models UHA[X][S] 300 - 400) 90032521
Two Stage Gas Valve, NG (Models UHA[T][X][S] 150 - 250) 90032530
Two Stage Gas Valve, LP (Models UHA[T][X][S] 150 - 250) 90032531