Steffes DLF40B - Manual (Page 22)

FIGURE 13
Mounting and Wiring Connections:
Step 1
Attach the thermostat to a wall. Insulate the opening through which the thermostat wires runs.
Failure to do so may affect the accuracy of the thermostat.
Step 2 Disconnect power to the furnace and route low voltage wire between the thermostat and
the furnace.
Step 3 Route the wire into the furnace’s electrical compartment and to the front of the charge control circuit
board (30).
Never install any wiring in the line voltage compartment of the furnace unless it
is rated for line voltage.
Step 4 Connect the thermostat to the 4 position terminal strip on the top front left corner of the charge
control circuit board (30) labeled “R”, “W”, “G”, and “C”. (See Figure 13 for reference to room
thermostat connections to the furnace.)
Step 5 If the thermostat has an anticipator, set it to .5 amps.
Installing The Furnace
(cont'd)
21
NOTE
NOTES: 1. Wiring shown is for use with N.O. (switch closes to charge) load control device. Y and Y2
would be used with a N.C. system (switch opens to charge).
With Uncontrolled
Air Conditioning
With Utility Controlled
Air Conditioning