Tjernlund PAI-1 & 2O Combustion Air In-Forcer 8504038 Rev A 05/01 - Manual (Page 12)

IN-FORCER MODELS PAI-1G & PAI-2G JUNCTION BOX LADDER DIAGRAM
IN-FORCER MODELS PAI-1G & PAI-2G CONNECTED TO A 24V FURNACE OR BOILER
NOTES: When the IN-FORCER is interlocked with the gas valve of the appliance, wire all other furnace/boiler controls as normally
done when conventional venting before continuing. Disconnect power from the appliance before attempting to interlock IN-FORCER.
Step 1: Cut wire that is factory installed to the TH or MV (HOT) terminal of gas valve.
Step 2: Connect YELLOW wire from IN-FORCER control cable to TH or MV (HOT) of gas valve.
Step 3: Connect BLUE wire from IN-FORCER control cable to the TH or MV (HOT) terminal of internal controls.
Step 4: Connect the RED wire from IN-FORCER control cable to the TR or MV/PV (COM) terminal on gas valve.
Important: DO NOT remove the factory pre-wired connection on this terminal.
IN-FORCER MODELS PAI-1G & PAI-2G CONNECTED TO A 24V FURNACE OR BOILER AND A MILLIVOLT WATER HEATER
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