Carrier 39B - Manual

39B
iupeeseoeo '6'/
Draw-Thru Central Station Weathermaker
SuPcesfi^cC) ay 0/7/
INDEX
PREINSTALLATION
INSTALLATION
Base Unit Assembly
Accessory Assembly
Unit Suspension and Mounting
Piping
Coil Removal and Reversing
Duct Connections
Motor and Drive
Belt Guard
START-UP
SERVICE
Coil Removal
Fan Section Access
Fan Shaft Bearing Replacement
Fan Shaft Removal
Fan Wheel Removal
PREINSTALLATION
PAGE
1
6
6
9
14
15
19
19
19
22
22
23
23
23
23
23
24
1.
1. Use spacer bars when rigging to avoid bending
unit flanges per Fig. 1.
2. Check items received against packing list and
Tables 1,2, and 3. Notify Carrier at once of
any discrepancy.
3. Examine for damage incurred during shipment.
Especially check for bent fan wheel or shaft
which may result in future vibration problems.
If any damage is found, immediately file claim
with transit company.
4. Check fan wheel setscrews (sizes 040-060) or
fan wheel clamps (sizes 070-140) for secure­
ness. Refer to Table 4 or Fig. 2 respectively.
a. Bolt threads with a dark-green finish require
no lubrication. Carefully lubricate all other
bolt threads with oil. Do not oil fan shaft.
b. Tighten clamps evenly.
5. Exercise care in handling all equipment.
6. If unit is to be stored for more than t, ’o v,eeks
prior to installation, observe the following
precautions:
a. Choose storage site that is kvel and ; +urdy.
to prevent undue stress or permanei t dis­
tortion to fan. Do not subject bearings to
direct sunlight or temperatures in excess of
180 F.
'
b.
c.
Protect bearings and rotating components
against moisture, abrasives and corrosion.
Cover entire unit with a tarp or plastic
coverall. Extend cover under unit if stored
on ground. Moisture and condensation can
cause loosening of internal insulation.
Periodically rotate fan shaft slowly by hand.
Fig. 1 — Rk , and Suspension DetailiS
© Carrier Corporation- 1971
*
Form 39B-1SI