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9.0 ACCESSORIES
9.1 Low Ambient Kit
(Part. No. RXAD-A08)
This component senses compressor head pressure
and shuts the outdoor fan off when the head pres
-
sure drops to approximately 250 PSIG [1724 kPa].
This allows the unit to build a sufficient head pres
-
sure at lower outdoor ambient (down to 0
o
F [-18
o
C])
in order to maintain system balance and obtain
improved capacity. Low ambient control should be
used on all equipment operated below 70
o
F [21
o
C]
ambient.
9.2 Hard Start Kit
(Part. No. SK-A1)
Start components are not usually required with the
scroll compressor used in (-)A17 condensing units,
but are available for special cases and where starts
components are desirable to reduce light dimming.
Also, see the interconnecting tubing section of this
manual to see if the application requires start
components.
9.3 Compressor
Crankcase Heater
2 Ton Models
:
44-17402-44 (without outdoor temperature thermo
-
stat) or
44-101884-08 (with outdoor temperature thermostat)
Note:
3 - 5 ton models have factory installed
crankcase heaters
9.4 Compressor
Sound Enclosure
2 & 3 Ton Models:
68-23427-26
4 & 5 Ton Models:
68-25217-10
Accessories
WARNING:
Turn off electric power
at the fuse box or service panel before making any
electrical connections while installing accessories.
Failure to do so can result in electrical shock, severe
personal injury, or death.
CAUTION:
SINGLE POLE COMPRESSOR
CONTACTOR (CC):
Single pole contactors are used on all single-phase
units. Caution must be exercised when servicing as
only one leg of the power supply is broken with the
contactor.
Summary of Contents for A17 Series
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