Tjernlund PAI-3,4,5,6,7 Commercial Combustion Air In-Forcer 8504036 Rev A 05/01 - Manual (Page 9)

ELECTRICAL
All wiring from the IN-FORCER to the appliance must be appropriate Class 1 wiring as follows: installed in rigid metal conduit, inter-
mediate conduit, rigid non-metallic conduit, electrical metallic tubing, Type MI Cable, Type MC Cable or be otherwise suitably protect-
ed from physical damage.
The IN-FORCER has a high temperature limit switch to deactivate the system in the event of a mechanical room fire. It also has a fan
proving switch to prove operation prior to burner ignition.
8
IN-FORCER WIRED WITH FAN PROVER AND MOTOR ISOLATION RELAYS
IN-FORCER INTERNAL WIRING SCHEMATIC
ACCESSORY RELAYS FOR ISOLATION
24/115 Volt 1/2 H.P. Relay 950-1040
24/115 Volt 1 1/2 H.P. Relay 950-1016
115/115 Volt 1/2 H.P. Relay 950-0480
115/115 Volt 1 1/2 H.P. Relay 950-0483