AIREDALE AIR 1-550.30 Installatie- en onderhoudshandleiding - Pagina 14

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1. General Information

MOTOR DATA / SERVICE

SERVICE

WARNING

When servicing or repairing this equipment, use only factory-

approved service replacement parts. A complete replacement

parts list may be obtained by contacting Modine Manufacturing

Company. Refer to the rating plate on the unit for complete

unit substitution of parts or controls not approved by the

factory will be at the owner's risk.

CAUTION

1. Service or repair of this equipment must be performed by a

qualified service agency.

2. Do not reuse any electrical component which has been wet.

Replace component.

IMPORTANT

To check most of the Possible Remedies in the troubleshooting

guide listed in Table 15.1, refer to the applicable sections of

the manual.

Heating equipment should be serviced before each heating

season to assure proper operations. The following items may be

required more frequently based on the environment in which the

unit is installed and frequency of equipment operation.

All installation and service of these units must be

performed by a qualified installation and service agency.

Before any service, BE SURE TO TURN OFF THE STEAM

OR WATER SUPPLY AT THE MANUAL SHUT-OFF VALVES

AND TURN OFF ALL ELECTRIC POWER TO THE HEATER.

Motors

1. Remove grease and dirt on motor during each inspection or

lubrication. Open frame motors should be blown clean every

heating season, or whenever coils are cleaned, whichever is

sooner.

2. Lubricate motor according to manufacturer's instructions

located on the motor. When no motor oiling instructions are

on the motor, oil the motor every two thousand hours of

operation with SAE20 motor oil for units in normal

applications. Adjust oiling according to usage and atmosphere.

3. Some motors do not have oil fittings. These motors are

lubricated for long life and do not require further lubrication.

4. A change in line voltage higher or lower than motor nameplate

rating may cause overheating and serious motor damage.

Check plant voltage conditions. A separate manual starter

with thermal overload protection device is recommended for

those units that do not have motors with built-in overload

protection.

Coils

1. Clean coil at least once a year; more often under unfavorable

conditions. Unless coil is kept reasonably free of dirt, lint and

grease, its original heating capacity will be reduced —

possibly to a serious degree, and motor damage may result.

Two commonly used cleaning methods are:

• L oosen dirt by brushing fins on side where air enters coil

and then turn on fan to blow dirt from unit.

• U se high pressure air hose to loosen dirt by blowing from

side where air leaves coil (side adjacent to louvers on blow-

through units; side adjacent to fan on draw-through units).

AIR 1-550.30