55
GUIDE SPECIFICATIONS (CONT)
N. Special Features Available:
1. Coil Options
Base unit with tin plated indoor coil hairpins available as a
factory installed option.
2. Compressor Start Kit (single phase units only):
Shall provide additional starting torque for single--phase
compressors.
3. Thermostat:
To provide for one--stage heating and cooling in addition
manual or automatic changeover and indoor fan control.
4. Crankcase Heater:
Shall provide anti-- floodback protection for low-- load cool-
ing applications.
5. Economizer:
a. Economizer controls capable of providing free cooling
using outside air.
b. Equipped with low leakage dampers not to exceed 3%
leakage, at 1.0 in. W.C. pressure differential.
c. Spring return motor shuts off outdoor damper on power
failure.
6. Filter Rack Kit:
Shall provide filter mounting for downflow applications.
7. Flat Roof Curb :
Curbs shall have seal strip and a wood nailer for flashing
and shall be installed per manufacturer’s instructions.
8. Flue Discharge Deflector
Directs flue gas exhaust 90 degrees upward from current
discharge.
9. Heat Exchanger
Stainless Steel Heat Exchanger available as a factory
installed option.
10. High Altitude Propane Conversion Kit:
Shall consist of all required hardware to convert to propane
gas heat operation at 2001 to 6000 ft (611 to 1829 m) above
sea level.
11. Low Ambient Package:
Shall consist of a solid--state control and condenser coil
temperature sensor for controlling condenser--fan motor op-
eration, which shall allow unit to operate down to 0_F
(-- 17_C) outdoor ambient temperature when properly
installed.
12. Louver Metal Outdoor Coil Grilles
Available as a field accessory. Provides hail and vandalism
protection.
13. Manual Outdoor Air Damper:
Package shall consist of damper, birdscreen, and rainhood
which can be preset to admit outdoor air for year--round
ventilation.
14. Natural-- to-- Propane Conversion Kit:
Shall be complete with all required hardware to convert to
propane gas operation at 10.0 IN. W.C. manifold pressure.
15. Propane--to -- Natural Conversion Kit
Shall be complete with all hardware to convert to natural
gas at standard altitude (0 to 2000 ft [0 to 610 m] above sea
level).
16. Square--To--Round Duct Transitions (24--48 size):
Shall have the ability to convert the supply and return open-
ings from rectangular to round.
17. Time Guard II
Automatically prevents the compressor from restarting for
at least 4 minutes and 45 seconds after shutdown of the
compressor. Not required when a corporate programmable
thermostat is applied.
574D-- -- A
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