Owner Manual

507332-02CPage 26 of 35 mrcool.com
Heating Sequence of Operation
See Figure 27
Gas Pressure Adjustment
Gas Flow (Approximate)
Table 11.
Gas Meter Clocking Chart
Capacity
Seconds for One Revolution
Natural LP
1 cu ft
Dial
2 cu ft
Dial
1 cu ft
Dial
2 cu ft
Dial
-045 80 160 200 400
-070 55 110 136 272
-090 41 82 102 204
-110 33 66 82 164
NOTE:
Supply Pressure Measurement
Manifold Pressure Measurement
Figure 27. Heating Sequence of Operation
Demand
15
ON
OFF
CAI
35
1
Pre-Purge
Ignitor Warm-up
Blower
“On” Delay
Post
Purge
5 SEC80
Ignitor
Gas Valve
Indoor Blower
39
Trial for
Ignition