Service manual

4
ACCESSORIES
Table 1—Required Field--Installed Accessories for Air Conditioners
ACCESSORY
REQUIRED FOR LOW--- AMBIENT
COOLING APPLICATIONS
(Below 55°F/12.8_C)
REQUIRED FOR
LONG LINE APPLICA-
TIONS*
REQUIRED FOR
SEA COAST
APPLICATIONS
(Within 2 miles/3.22 km)
Ball Bearing Fan Motor Ye s {} No No
Compressor Start Assist C apacitor and Relay Ye s ** Ye s No
Crankcase Heater Yes } Ye s } No
Evaporator Freeze Thermostat Yes } No No
H a r d S h u t --- O f f T X V Ye s Ye s Ye s
Liquid Line Solenoid Valve No No No
Motor Master
®
or Low ---ambient Pressure Switch Ye s } No No
Support Feet Recommended No Recommended
Winter Start Control Ye s } No No
* For tu bing line sets between 80 and 200 ft. (24.38 and 60.96 m) and/or 35 ft. (10.7 m) vertical differential, refer to Residential Piping and Longline Guideline.
{ Additional requirement for Low---Ambient Controller (full modulation feature) MotorMasterr Control.
} Infinity 2 ---stage units come standard with this accessory.
* * N o t r e qu i r e d o n 2 --- s t a g e
Table 2—Required Field--Installed Accessories for Heat Pumps
ACCESSORY
REQUIRED FOR LOW--- AMBIENT
COOLING APPLICATIONS
(Below 55°F / 12.8°C)
REQUIRED FOR
LONG LINE APPLICA-
TIONS*
REQUIRED FOR
SEA COAST APPLICA-
TIONS (Within 2 miles /
3.22 km)
Accumulator Standard Standard Standard
Ball Bearing Fan Motor Ye s {} No No
Compressor Start Assist C apacitor and Relay Ye s * * Ye s No
Crankcase Heater Ye s }
Ye s }
No
Evaporator Freeze Thermostat Yes } No No
Hard Shutoff TXV Ye s Ye s Ye s
Isolation Relay Ye s No No
Liquid Line Solenoid Valve No
See Long---Line Application
Guideline
No
Motor Master® Control or
Low Ambient Switch
Ye s } No No
Support Feet Recommended No Recommended
* For tu bing l ine sets between 80 and 200 ft. (24.38 and 60.96 m) and/or 20 ft. (6.09 m) vertical differential, refer to Residential Piping and Longline Guideline.
{ Additional requirement for Low ---Ambient Controller (full modulation feature) MotorMasterr Control.
} Infinity 2 ---stage units come standard with this accessory.
* * N o t r e qu i r e d o n 2 --- s t a g e
Always Ask For