Broan D SERIES ELECTRIC FURNACE, 30042432A warranty Using Optional Equipment, Wiring Color Codes

USING OPTIONAL EQUIPMENT

1.	TWO-STAGE OR OUTDOOR THERMOSTAT
	(The SEASON SELECT switch must be in the MILD position).
	Follow the directions supplied with the two-stage or outdoor
	thermostat in conjunction with the furnace wiring diagram.
2.	AIR CONDITIONING
	Your furnace is equipped with all the controls required for the

4.INTERLOCK CONNECTION

When the electric furnace is used in combination with another device (as for example, a wood burning furnace), it is recommended to perform the connection by referring to the wiring diagram below. The burning furnace thermostat will then turn automatically on the blower in the electric furnace.

addition of air conditioning (except the heat-cool thermostat).

The evaporator coil may be installed by a local contractor in

sheet metal plenum of his own manufacture. The coil should be

located: Centered over the “chimney” of the furnace 4” (102 mm)

to 6” (152 mm) above the top of the furnace.

Make sure no air is allowed to bypass the cooling coil during

cooling operation. If the discharge opening is a great deal larger

than the coil, and the ductwork is correspondingly larger than

the coil, you may want to use a bypass damper for heating. The

damper would be closed in summer, directing all air flow

External Request for Fan Activation

Relay

NC

COM

NO

Furnace

Thermostat

G R

Electric Furnace System

Furnace

R24 VAC Power Output

GCall for FAN

through the coil. In winter the damper would be open to allow

air to bypass the coil.

Typical air-conditioning field wiring connections are shown in the following diagram:

THERMOSTAT

FURNACE

CONDENSER

WIRING COLOR CODES

C	G	R	W1	W2	Y
				WHITE
COMMON	GREEN	RED	WHITE	(BLUE	YELLOW
				OPTIONAL)

3.ELECTRONIC AIR CLEANERS AND/OR POWERED FURNACE HUMIDIFIERS

These units operate at 120 V. Your 240 V furnace is designed so that Model FK120 adaptor kit can be mounted inside the furnace to supply the required 120 V. Instructions for mounting and wiring are included with the kit.

MAINTENANCE

MOTOR: The motor is lubricated for life and needs no oiling.

FILTERS: Size is 20” x 20” x 1” (508 mm x 508 mm x 25 mm). Should be inspected and replaced when dirty. Ordinarily replacement is required twice per heating season and, perhaps, a third time if continuous blower operation is used.

NOTE: Each element has an automatic reset thermal cut-out which is set to open at 160°F (71°C). If it opens, the element will be de-energized until the cut-out resets itself. In addition to that, there are 2 manual reset thermal cut-outs that open at 200°F (93°C). If any of them open, a front panel needs to be removed so the cut-out can be manually reset.

!WARNING

Cut 240 V supply before removing the front panel!

The reason for the failure should be investigated before re-starting the furnace. The limit usually opens when airflow is reduced because of blocked ductwork or very dirty filters.

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