Goodman Mfg ANSI Z21.47CSA-2.3 installation instructions Motor Sheave Adjustments, Maintenance

for the purpose of airflow balancing, but once the balance has been achieved, fixed sheaves maintain alignment and minimize vibration more effectively. For direct drive units, move green wire for fan.

MOTOR SHEAVE ADJUSTMENTS

VL, VM & 2VP VARIABLE PITCH KEY TYPE MOTOR SHEAVES

The driving and driven motor sheaves should be in align- ment with each other and the shafts parallel.

VL & VM SHEAVES ADJUSTMENT

1.Loosen set screw “B” using a 5/32" Allen key.

2.Making half or full turns from closed position, adjust sheave pitch diameter for desired speed. DO NOT OPEN MORE THAN SIX FULL TURNS.

3.Tighten set screw “B” securely over flat.

4.Carefully put on belts and adjust belt tension. DO NOT FORCE BELTS OVER GROOVES.

5.Ensure all keys are in place and the set screws tight before starting drive. Recheck set screws and belt tension after 24 hours service.

NOTE: Future adjustments should be made by loosening the belt tension and increasing or decreasing the pitch diameter of the sheave by half or full turns as required. Readjust belt tension before starting drive.

C

B

VL & VM

WARNING

TO PREVENT PERSONAL INJURY OR DEATH DUE TO IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE, REFER TO THIS MANUAL. FOR ADDITIONAL ASSISTANCE OR INFORMATION, CONSULT A QUALIFIED INSTALLER, SERVICE AGENCY OR THE GAS SUPPLIER.

CAUTION

SHEET METAL PARTS, SCREWS, CLIPS AND SIMILAR ITEMS INHERENTLY HAVE SHARP EDGES, AND IT IS NECESSARY THAT THE INSTALLER AND SERVICE PERSONNEL EXERCISE CAUTION.

Preventive maintenance is the best way to avoid unneces- sary expense and inconvenience. Have this system inspected at regular intervals by qualified service personnel, at least twice a year. Routine maintenance should cover the follow- ing items:

1.Tighten all belts, set screws, and wire connections.

2.Clean evaporator and condenser coils mechanically or with cold water, if necessary. Usually any fouling is only matted on the entering air face of the coil and can be removed by brushing.

3.Lubricate motor bearings.

4.Align or replace belts as needed.

5.Replace filters as needed (see below).

6.Check for blockage of condensate drain.

7.Check power and control voltages.

8.Check running amperage.

9.Check operating temperatures and pressures.

10.Check and adjust temperature and pressure controls.

11.Check and adjust damper linkages.

12.Check operation of all safety controls.

13.Examine gas furnaces (see below and the User’s Information Manual).

14.Check condenser fans and tighten set screws.

FILTERS

NOTE: For horizontal discharge, remove the supply and return duct covers and place them over the vertical discharge return and supply openings (bottom of unit).

NOTE: Do not operate sheave with flange projecting beyond the hub end.

MAINTENANCE

WARNING

HIGH VOLTAGE !

DISCONNECT ALL POWER BEFORE SERVICING OR

INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY

BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY

DAMAGE, PERSONAL INJURY OR DEATH.

CAUTION

TO PREVENT PROPERTY DAMAGE DUE TO FIRE AND LOSS OF EQUIPMENT EFFICIENCY OR EQUIPMENT DAMAGE DUE TO DUST AND LINT BUILD UP ON INTERNAL PARTS, NEVER OPERATE UNIT WITHOUT AN AIR FILTER INSTALLED IN THE RETURN AIR SYSTEM.

Every application may require a different frequency of replace- ment of dirty filters. Filters must be replaced at least every three (3) months during operating seasons.

Dirty filters are the most common cause of inadequate heat- ing or cooling performance. Filter inspection should be made at least every two months; more often if necessary because of local conditions and usage.

Dirty throwaway filters should be discarded and replaced with a new, clean filter.

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