United States Stove 1600, 1800 manual Speedblower Adjustment, Speed Distribution Blower Operation

3-SPEED BLOWER ADJUSTMENT

The control center is equipped with three adjustments that allow you to select the temperature at which the blower starts operating and automatically switches from one speed to the next.

With the three controls you can set the blower for single (high speed operation), two speed operation, or three speed operation.

The High-Only setting is usually recommended for larger structures where the maximum air flow is required to achieve efficient, uniform heating. (Improper adjustment can cause undesirable cycling.)

The two or three speed settings are more applicable to smaller or medium sized structures and generally make more efficient use of the available heat. Because the blower speeds can be set to automatically change as the plenum temperature increases or decreases, the heat output can be maintained at a more uniform level throughout the cycle of the fire.

The temperature range shown on each control corresponds to the air temperature as measured at the furnace plenum.

INITIAL FACTORY SETTING FOR 3 SPEED OPERATION.

(For any other blower setting see chart)

OPTIONAL

BLOWER

ADJUSTMENTS

LOW 1

MED 2

HIGH 3

USE SMALL SCREWDRIVER (SUPPLIED)

TO MAKE FURTHER ADJUSTMENTS

NOTE: BLOWER MOTOR CFM'S FOR THE 1600/1800 ARE: BLUE-1250 CFM

BLACK-1400 CFM

RED-1100 CFM

Refer to the following chart to select the blower speed options.

BLOWER OPERATION	CONTROL SETTING
One Speed (HIGH)		1	Turn to temperature
			where you wish
All 3 board wires connected to			blower to start.
high speed wire of blower. Tape
off low and medium wires to		2	Set at 150°
avoid accidental shorting.		3	Set at 150°
Two Speed		1	Turn to temperature
(MEDIUM AND HIGH)			where you wish
Connect low speed board wire to			blower to start.
medium speed blower wire. Connect		2	Set at least 5°
medium and high speed board wires			higher than Control 1.
to high speed blower wire. Tape off
low speed blower wire to avoid		3	Set at 150°
accidental shorting.
Three Speed		1	Turn to temperature
(LOW,MEDIUM,			where you wish
AND HIGH)			blower to start.
		2	Set at least 5°
			higher than Control 1.
		3	Set at least 5°
			higher than Control 2.
			(Initial factory setting:
			Control 1 - 110°
			Control 2 - 120°
			Control 3 - 140°

If you find the air from the heat registers is too cool, turn Control 1 to a higher temperature setting. The setting of Control 3 for two speed operation and Controls 2 and 3 for three speed operation may also be adjusted up or down to maintain a more constant temperature output.

3 Speed Distribution Blower Operation

●when thermostat calls for heat: L-M-H, H-M-L

●when thermostat isn't calling forhear: H, H-M-L

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