Steffes DLF40B - Manual (Page 23)

22 Installing The Furnace
(cont'd)
Peak Control
The heating elements in the furnace are controlled on­peak (not able to store heat in the brick core) via low
voltage wiring.
Connecting the furnace to load control signaling device:
Step 1
Route a low voltage circuit from the power company's load control peak signaling device to the
charge control circuit board (30) located inside the electrical compartment of the furnace.
Never install any wiring in the line voltage compartment of the furnace unless it
is rated for line voltage.
Step 2 Connect the field wiring to the BLUE and BLUE/WHITE wires hanging from the back of the charge
control circuit board (30). (See to the Low Voltage Wiring Diagram in this manual for a depictition
of the location of these wires.)
Step 3 Be sure the "N.O./N.C." slide switch on the back of the charge control circuit board (30) is in the
position that matches the input of the power company’s load control signaling device.
N.O. = A closed power company switch will signal an off­peak time to the furnace (charging is
enabled). An open power company switch will signal an on­peak time to the furnace
(charging is disabled).
N.C. = An open power company switch
will signal an off­peak time to the
furnace (charging is enabled). A
closed power company switch will
signal an on­peak time to the
furnace (charging is disabled).
Optional Features
These recommended wiring methods
reflect only devices that accept a remote
low voltage power source. Refer to the
specific installation instructions for the
device before making any connections to
the furnace.
Control of Other Loads:
The furnace can be used to control other loads in the
application. To do so, connect the other loads using low
voltage wire to the “Y” positions of the terminal block
located on the upper right front corner of the charge
control circuit board. (See the Low Voltage Diagram in
the manual for reference to these terminal block posi­
tions.)
Connecting a Humidifier:
Figure 14 shows the general concept for connecting a
humidifier to the furnace. Refer to installation instructions
of the humidifier prior to making any connections.
Connecting an Electronic Air Filter:
Figure 15 shows the general concept for connecting an
electronic air filter to the furnace. Refer to installation
instructions of the filter prior to making any connections.
NOTE
FIGURE 14
FIGURE 15
NOTE