MTD 248-604A Manual de instalación descargar pdf (Pagina 39)

IM 1083 Self-Contained WSHP Unit Ventilator Models ARQ, ERQ, GRQ Page 39 of 42

Figure 74: Fan Shaft Bearing(s) Oil Cup Location(s)

Room Air Fan

Shaft Bearing

Left Front Access Panel

Prepare Unit Ventilator for Start-up

Post Installation Checklist

□

Unit securely fastened to wall

□

Electrical hook-up complete; power, control, wall

thermostat (if applicable) in accordance with unit wiring

diagram(s)

□

Air lter clean and in place

□

All access and end panels in place and protective

covering removed

□

No debris, dust, dirt, or obstructions exist in front of

the return air intake grille at the oor

□

All installation work has been completed in

accordance with applicable local, state and national

codes

□

Room air fan shaft bearing oiled

□

Unit square and level and running smoothly and

quietly

□

No air inltration

□

Paint nicks and scratches touched up (as required)

□

Access space provided for maintenance, service and

unit removal

□ Shipping carton replaced over unit for protection

□

Owner or maintenance personnel provided with a

copy of this manual and other manuals/documents

shipped with the unit.

□ Owner or maintenance personnel instructed on

proper operation and maintenance

Oiling

Do not attempt to operate the unit fans until the room air fan shaft

bearing has been oiled.

Access to fan shaft bearing is through left top access door. Use a high

grade SAE 20 or 30 nondetergent mineral oil. A few drops are sufcient.

Do not over oil. Refer to Figure 74 for the oil point.

Note:

Unit size 048 has a fan shaft bearing located between the rst

and second fan from the unit left end that is required to be oiled.

Filter(s)

AAF

-HermanNelson

single-use lters are standard on all units.

Permanent wire mesh and renewable media lters are available in lieu

of single-use lters.

• Single-use lters feature Amerglas media. They are designed to be

used once and discarded.

• Permanent lters are metal lters that may be removed for cleaning

and reused numerous times.

• Renewable media lters (gure 75) consist of a heavy painted metal

structural frame and renewable Amerglas media.

Turn off unit before servicing to avoid danger of injury from

rotating fans.

WARNING

Motor manufacturer recommends not oiling the room fan motor.

NOTICE

When oiling the middle fan shaft bearing DO NOT allow oil to

drip down on the components located below the bearing.

CAUTION

Unit Size 048 Bearing, Located

Between First and Second

Fan from Left End of Unit

1 2 ... 34 35 36 37 38 39 40 41 42

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MTD 248-604A Manual de instalación Pagina 39

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