Carrier 39S handleiding
Handleiding
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Fig. 42 — Motorized Outside Air Damper
Fig. 43 — Assemble the Outside Air Hood
Fig. 44 — Remove Access Panel(s) from Unit
Fig. 45 — Secure Adapter Panel to Unit
Fig. 46 — Secure Door Panel to Unit
Install Sheaves on Motor and Fan Shafts
Factory-supplied drives are prealigned and tensioned, however,
Carrier recommends that the belt tension and alignment be
checked before starting the unit. Always check the drive align-
ment after adjusting belt tension.
When field installing or replacing sheaves, install sheaves on fan
shaft and motor shaft for minimum overhang. (See Fig. 47.) Use
care when mounting sheave on fan shaft; too much force may
damage bearing. Remove rust-preventative coating or oil from
shaft. Make sure shaft is clean and free of burrs. Add grease or lu-
bricant to bore of sheave before installing.
ALIGNMENT
Make sure that fan shafts and motor shafts are parallel and level.
The most common causes of mis-alignment are nonparallel shafts
and improperly located sheaves. Where shafts are not parallel,
belts on one side are drawn tighter and pull more than their share
of the load. As a result, these belts wear out faster, requiring the
entire set to be replaced before it has given maximum service. If
misalignment is in the sheave, belts will enter and leave the
grooves at an angle, causing excessive belt cover and sheave wear.
1. Shaft alignment can be checked by measuring the distance
between the shafts at 3 or more locations. If the distances are
equal, then the shafts will be parallel.
2. Check alignment of sheaves:
Fixed sheaves
— To check the location of the fixed sheaves
on the shafts, a straightedge or a piece of string can be used. If
the sheaves are properly lined up the string will touch them at
the points indicated by the arrows in Fig. 48.
Adjustable sheave
— To check the location of adjustable
sheave on shaft, make sure that the centerlines of both
sheaves are in line and parallel with the bearing support
channel. See Fig. 48. Adjustable pitch drives are installed on
the motor shaft.
Adapter Panel
Door Panel
Outside Air Slide
Hood Top
Filter Channel
Filter Access Panel
Filter
Hood Side
Door Panel
Outside Air Hood
Rear Access Panel
(Removed)
Return Air Access Panel
(Removed)
Adapter Panel
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Productinformatie
| Merk | Carrier |
| Model | 39S |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 10967 MB |
