Page 12
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NOTE - During abnormal conditions such as low supply
voltage or low outdoor temperatures and the low re pres-
sure switch does not close, the combustion air inducer will
switch to high re. After a 15 second pre-purge the high
re pressure switch will close and the unit will begin op-
eration on high re. After 10 to 20 seconds of high re
operation the unit will switch to low re
®
ig-
Two Stage Operation / Thermostat Selection DIP
Switch
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TABLE 1
5 Pin Terminal Designation
Pin# Function
1
2
4
TABLE 2
12 Pin Terminal Designation
Pin# Function
1
2
4
7
9
10
11
12
TABLE 3
5 Pin Terminal Designation
Pin# Function
1
2
4
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