Guide Specifications - Carrier 50HS Product Data

Guide specifications (cont)
J. Motors:
1. Compressor motors shall be of the refrigerant-
cooled type with line break thermal and current
overload protection.
2. All fan motors shall have permanently lubricated
bearings and inherent automatic-reset thermal
overload protection.
3. Outdoor-fan motor shall be totally enclosed.
K. Special Features:
1. Electric Resistance Heaters:
a. Open-wire nichrome elements with all nec-
essary safety and operating controls.
b. Heaters are UL listed as indicated on basic
unit informative plate.
c. Each heater assembly shall include the fol-
lowing safety features:
1) Automatic-reset switches.
2) Heat limiters for primary and secondary,
overcurrent, and thermal protection.
d. Available
connections.
2. Outdoor Thermostat Kit:
Thermostat allows for staging of electric heaters
based on outdoor-air temperature.
3. Thermostat and Subbase:
Provides staged cooling and heating automatic
(or manual) changeover, fan control.
4. Electronic Programmable Thermostat:
Thermostat provides 2-stage heating and 2-stage
cooling control with remote communication
ability.
Carrier Corporation • Syracuse, New York 13221
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1 4 Page 28
Tab 5a 5a
with power single-point
Catalog No. 525-094
5. High- and Low-Pressure Switches:
Protect the compressor against improper refrig-
erant pressures.
6. Low-Ambient Kit:
Permits cooling operation at outdoor tempera-
tures as low as 0° F.
7. Factory-Assembled Roof Curb:
Provides one-piece support for downflow
applications.
8. Manual Outdoor-Air Damper:
Provides for minimum outdoor air and is manu-
ally adjustable.
9. Filter Rack:
Provides internal filtering performance.
10. Duct Cover Kit:
Covers horizontal ducts after unit has been con-
verted to downflow discharge.
11. Rectangular Duct Connection Kit:
Allows easy conversion from round to rectangu-
lar ducts.
12. Base Rail:
Provides holes for rigging and handling as well
as an elevated base for horizontal applications.
13. Downflow Option:
Provides for easy vertical ductwork connections.
6-98
Printed in U.S.A. PC 111 Form 50HS-3PD
Replaces: 50HS-2PD