Install Instructions

ManualsBrandsDiversiTech ManualsFurnace Blower Motors1 HP, 208-230 VAC Direct Drive Furnace Blower Motor (1075 RPM)

After opening carton, look for damage. If damage is found file a claim with the

freight carrier. The motor shaft should rotate freely by hand. Verify that the

carton and nameplate data match the motor you bought.

Storage

Motor should be stored indoors. The chosen location should

be clean and dry.

General Information

This is a single-phase permanent split capacitor (PSC) motor designed for use as a

direct drive furnace blower motor. Do not use this motor in the presence

of spraying or standing water. This motor is suitable for use in Class III locations

where airborne lint or fiber is present, as defined in article 500 of the National

Electric Code (NEC). This motor is not suitable for use in Class I or Class II

(explosive gas or dust locations). This motor is a continuous air over motor. For

suitable operation, it must operate in the air stream of the furnace. This air

stream helps cool the motor.

Power Source

Supply voltage and frequency must match what is shown on the motor nameplate.

Source voltages lower than rated supply can reduce performance and cause the

motor to overheat.

Motor Protectors Voltage

Wagner strongly urges the use of a line voltage monitor (similar to Wagner model

DSP-1). These devices measure and monitor supply voltage, and if it ranges too

high or too low, the motor circuit is “turned off” through the contactor circuit.

Motor Installation

All aspects of the installation must conform to requirements of the NEC, and any

applicable local codes. The supply circuit must be of adequate capacity to maintain

sufficient voltage during start and run periods. Supply wire size must be of

adequate gauge to carry current as required by the motor. All electrical

connections must be secure to prevent voltage drop and localized heating. If the

motor is damp or wet, it may cause a shock hazard. Have the motor serviced by a

qualified motor repair facility before installation and/or operation.

Motor Mounting

This motor must be mounted securely to prevent vibration and reduce noise.

Motors with sleeve bearings should be mounted so oil ports are readily accessible.

This motor is intended for direct coupling to a furnace blower. Carefully check the

shaft and coupling alignments after mounting. Do not use a flexible coupling to

compensate for misalignment. Do not strike the motor shaft. This may damage

the bearings or other internal components.

Motor Electrical Connection

Motor must be securely and adequately grounded with a method approved by the

NEC and local codes. Insulate all connections to prevent grounding or short

circuits. Reinstall all conduits, terminal box covers, and other electrical devices.

Do not force connections. This is a multi-speed motor. There are multiple wires

for line voltage connection. If all wires are not used, be sure to INDIVIDUALLY

insulate each wire. Do not connect unused wires together. Do not connect

unused leads to other voltage sources.

Wagner recommends the replacement of the capacitor with this PSC motor. Be

sure the replacement capacitor matches the rating requirement on the new

motor.

The power supply must have fuses to provide short circuit protection as required

by local codes. Any switching device used to control the motor must have a

rating at least equal to the new motor. This motor is NOT designed for electronic

speed control. DO NOT connect this motor to an electronic speed

control.

Starting Motor

Be sure the motor is properly grounded. Remove any mechanical locks in the

motor shaft or mechanically connected components. Start the motor briefly.

Make sure the motor is rotating in the correct direction. Make sure the motor is

not creating any unusual noises or vibration. Check the motor's current draw. It

should be within ten-percent of the nameplate rating. As this motor is an air

moving motor, all enclosures must be in place to take an accurate amp reading.

Motor Operation

Visually re-inspect the installation. Make sure all guards, housings, and other

protective devices are in place. All covers and gaskets must be re-installed to

minimize the introduction of dirt and moisture. The external case of the motor

becomes hot enough to cause injury during normal operation. Use caution when

working near an operating motor.

Motor Maintenance

Always disconnect power and allow the motor to completely stop and cool before

performing maintenance. Discharge any capacitors for safety. Periodically inspect

the motor installation to assure it is free of accumulated dirt. Also be sure the

motor is free of unusual vibration and noise. Remove dirt accumulations by

vacuuming any debris. Do not use solvent cleaners. Ball bearing motors are

permanently lubricated. Sleeve bearing motors require periodic re-lubrication. Do

not overlubricate.

Initial Inspection

Storage

General Information

Power Supply

CHECK FOR

SHIPMENT

DAMAGE

DIRECT

ION

WIRIN

DIA

GRAM

DIRECT

ION

WIRIN

DIA

GRAM

ORA

NGE

ORA

NGE

YEL

LOW

YELLOW

RPLE

PURPLE

BROWN

BRO

CCW

INSULATE UNUSED CONNECTIONS

REPLACE OR TEST CAPACITOR

CONNECT MOTOR GROUND

ACK

LLOW

WN / WH

IGH

LOW