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SECTION 14: REPLACEMENT PARTS
35
14.5 Pressure Switch
Pull off 3 way connector. Spring open plastic clips of
mounting cradle. Replace with correct type of
pressure switch for model. The pressure switches
are color coded for each pressure setting.
Carbon Monoxide Hazard
Use correct pressure switch specified for each model.
Use of incorrect pressure switch or disabling
pressure switch circuit could cause unsafe condition.
Failure to follow these instructions can result in
death or serious injury.
WARNING
Carry out a commission after working on or
changing a pressure switch.
See Page 19, Section
10.
Pressure Switch
UHA[S]
150 - 175
UHA[S]
200 - 225
UHA[S]
250
UHA[S]
300 - 350
UHA[S]
400
P/N 90439802 90439808 90439803 90439807 90439808
Color Code yellow orange gray brown orange
Set Point in. w.c. .32 .79 .41 .68 .79