ICP CSA6 - Accessory Usage; Refrigerant Connections; Recommended Liquid and Vapor Tube Diameters

INSTALLATION INSTRUCTIONS R−410A Split System Air Conditioner
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Specifications subject to change without notice.
Table 1 − Accessory Usage
Accessory
REQUIRED FOR LOW−AMBIENT
COOLING APPLICATIONS
(Below 555F / 12.85C)
REQUIRED FOR LONG LINE
APPLICATIONS* (Over 80 ft. / 24.38 m)
Crankcase Heater Yes Yes
Compressor Start Assist Capacitor and Relay Yes Yes
Evaporator Freeze Thermostat Yes No
Liquid Line Solenoid Valve No See Long Line Applications Guideline
Low−ambient Pressure Switch Yes No
Support Feet Recommended No
Thermal Expansion Valve (TXV)
Hard Shutoff
Yes Yes
Winter Start Control Yes No
* For tubing line sets between 80 and 200 ft. (24.38 and 60.96 m) and/or 20 ft. (6.09 m) vertical differential, refer to Long Line Applications Guideline.
Table 2 − Refrigerant Connections and Recommended Liquid and Vapor Tube Diameters (In.)
UNIT SIZE
LIQUID
RATED VAPOR
up to 80 ft. (24.38 m)*
Connection and Tube
Diameter
Connection
Diameter
Rated Tube
Diameter
18, 24, 30, 3/8 3/4 3/4
36, 42, 48 3/8 7/8 7/8
60 3/8 7/8 1−1/8
* Units are rated with 25 ft. (7.6 m) of lineset. See Specification sheet for performance data when using different size and length linesets.
Notes:
1. Do not apply capillary tube or fixed orifice indoor coils to these units.
2. For Tubing Set lengths between 80 and 200 ft. (24.38 and 60.96 m) horizontal or 35 ft. (10.7 m) vertical differential 250 ft. (76.2 m) Total Equivalent Length),
refer to the Long Line Applications Guideline.