INSTALLATION INSTRUCTIONS R−410A Split System Air Conditioner
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Table 1 − Accessory Usage
Accessory
REQUIRED FOR LONG LINE
APPLICATIONS* (Over 80 ft. / 24.38 m)
Required for Sea Coast Application
(within 2 miles/3.22 km)
Crankcase Heater Yes, standard on some units No
Compressor Start Assist Capacitor and Relay Yes No
Liquid Line Solenoid Valve See Long Line Applications Guideline No
Support Feet No Recommended
* 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
724 3/8 3/4 3/4
924 3/8 7/8 7/8
736, 936 3/8 7/8 7/8
748, 948 3/8 7/8 1−1/8
760, 960 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.
REGISTERED
ISO 9001:2000
This product has been designed and manufactured to meet
Energy Star® criteria for energy efficiency when matched
with appropriate coil components. However, proper
refrigerant charge and proper air flow are critical to achieve
rated capacity and efficiency. Installation of this product
should follow all manufacturing refrigerant charging and air
flow instructions. Failure to confirm proper charge and
air flow may reduce energy efficiency and shorten
equipment life.
Use of the AHRI Certified
TM Mark indicates a
manufacturer’s
participation in the
program For verification
of certification for individual
products, go to
www.ahridirectory.org.
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