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Carrier Corporation
•
Indianapolis, IN 46231
11-02
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1
4
New
Book 1
Page 28
Catalog No. 525-00037
Printed in U.S.A.
PC 101
Form 50JX-3PD
Tab
5a 5a
Tab
OP3a
Replaces: 50JX-2PD
2. All fan motors shall have permanently lubricated
bearings, and inherent, automatic reset, thermal
overload protection.
3. Condenser fan motor shall be totally enclosed.
L. Special Features Available:
1. Louvered Grille:
Wire grille shall be standard on all units. Louvered
grille shall be available as a factory-installed option
to provide hail guard and vandalism protection.
2. Coil Options:
Shall include factory-installed optional copper/
copper and vinyl-coated refrigerant coils.
3. Economizer:
a. Economizer controls capable of providing free
cooling using outside air.
b. Equipped with low leakage dampers not to ex-
ceed 3% leakage, at 1.0 in. wg pressure differen-
tial.
c. Spring return motor shuts off outdoor damper on
power failure.
4. Flat Roof Curb:
Curbs shall have seal strip and a wood nailer for
flashing and shall be installed per manufacturer’s
instructions.
5. Manual Outdoor Air Damper:
Package shall consist of damper, birdscreen, and
rainhood which can be preset to admit outdoor air
for year-round ventilation.
6. Thermostat:
To provide for one-stage heating and cooling in ad-
dition manual or automatic changeover and indoor
fan control.
7. Low Ambient Package:
Shall consist of a solid-state control and outdoor coil
temperature sensor for controlling outdoor-fan mo-
tor operation, which shall allow unit to operate
down to 0° F outdoor ambient temperature.
8. Filter Rack Kit:
Shall provide filter mounting for downflow applica-
tions.
9. Controls Upgrade Kit:
Shall provide high and low pressure safety protec-
tion.
10. Square-To-Round Duct Transitions (024-048):
Shall have the ability to convert the supply and re-
turn openings from rectangular to round.
11. Crankcase Heater:
Shall provide anti-floodback protection for low-
load cooling applications.
12. Electric heaters:
a. Electric heater shall be available as a field-
installed option.
b. Heater elements shall be open wire type, ade-
quately supported and insulated with ceramic
bushings.
c. Electric heater packages must provide single
point power connection capability.
Guide specifications (cont)