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Accessory usage guideline
* For tubing line sets between 50 and 175 ft, refer to Residential Split Systems Long-Line Application Guideline.
† Only when low-pressure switch is used.
‡ Required for Low-Ambient Controller (full modulation feature) and MotorMaster® Control only.
Accessory description and usage (Listed alphabetically)
1. Ball Bearing Fan Motor
A fan motor with ball bearings which permits speed reduction while maintaining bearing lubrication.
SUGGESTED USE: Required on all units where Low-Ambient Controller (full modulation feature) or MotorMaster® Control has been added.
2. Compressor Start Assist — Capacitor and Relay
Start capacitor and start relay gives “hard” boost to compressor motor at each start-up.
SUGGESTED USE: Installations where interconnecting tube length exceeds 50 ft.
Installations where outdoor design temperature exceeds 105°F (40.6°C).
Replacement installations with hard shutoff expansion valve on indoor coil.
Installations where Liquid-Line Solenoid Valve has been added.
3. Compressor Start Assist — PTC
Solid-state electrical device which gives a “soft” boost to the compressor at each start-up.
SUGGESTED USE: Installations with marginal power supply.
Replacement installations with rapid pressure balance (RPB) expansion valve on indoor coil.
4. Crankcase Heater
An electric resistance heater which mounts to the base of the compressor to keep the lubricant warm during off cycles. Improves compressor lubrication on
restart and minimizes chance of refrigerant slugging. May or may not include a thermostat control.
SUGGESTED USE: When interconnecting tube length exceeds 50 ft.
When unit will be operated below 55°F (12.8°C) outdoor air temperature. (Use with low-ambient controller.)
All commercial installations.
5. Cycle Protector
Solid-state timing device which prevents compressor rapid recycling. Control provides an approximate 5-minute delay after power to the compressor has been
interrupted for any reason, including normal room thermostat cycling.
SUGGESTED USE: Installations in areas where power interruptions are frequent.
Where user is likely to “play” with the room thermostat.
All commercial installations.
Installations where interconnecting tube length exceeds 50 ft.
High-rise applications.
THERMOSTAT PKG. DESCRIPTION
TSTATCCPRH01-B
Thermidistat Control, Programmable/Non-Programmable Thermostat with Humidity Control
TSTATCCNAC01-B
Thermostat, Auto Changeover, Non-Programmable, °F/°C, 1-Stage Heat, 1-Stage Cool
TSTATCCPAC01-B
Thermostat, Auto Changeover, 7-Day Programmable, °F/°C, 1-Stage Heat, 1-Stage Cool
TSTATCCBAC01
Builder’s Thermostat, Manual Changeover, Non-Programmable, °F/°C, 1-Stage Heat, 1-Stage Cool
TSTATXXSEN01-B
Outdoor Air Temperature Sensor
TSTATXXNBP01
Backplate for Non-Programmable Thermostat
TSTATXXPBP01
Backplate for Programmable Thermostat
TSTATXXBBP01
Backplate for Builder’s Thermostat
TSTATXXCNV10
Thermostat Conversion Kit (4 to 5 wire) — 10 Pack
ACCESSORY
REQUIRED FOR
LOW-AMBIENT
APPLICATIONS
(Below 55°F)
REQUIRED FOR
LONG-LINE
APPLICATIONS*
(Over 50 Ft)
REQUIRED FOR
SEA COAST
APPLICATIONS
(Within 2 Miles)
Crankcase Heater
Yes Yes No
Evaporator Freeze Thermostat
Ye s N o N o
Winter Start Control
Yes† No No
Accumulator
No No No
Compressor Start Assist
Capacitor and Relay
Yes Yes No
Low Ambient Controller,
MotorMaster® Control,
or Low-Ambient Pressure Switch
Ye s N o N o
Wind Baffle
See Low-Ambient
Instructions No No
Coastal Filter
No No No
Unit Risers
Recommended No Recommended
Liquid-Line Solenoid Valve
or
Hard Shutoff TXV
No
See
Long-Line
Application Guideline No
Ball Bearing Fan Motor
Yes‡ No No
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