General - Carrier 38C Series Installation, Operation And Maintenance Manual

J. General Requirements (Check List)
All Long Line Applications
• TXV with 15 to 30% bleed must be installed at indoor unit.
• Hard Start Kit (start capacitor and relay) must be installed on outdoor unit.
• Crankcase heater must be installed on compressor.
• Use liquid line per Tables 5, 7, and 10.
• Use only vapor line sizes listed in Tables 3.
• Adjust charge per Table 4.
• Charge system to 10° subcooling or rating plate subcooling, whichever is greater.
Heat Pumps Only
• Bi- flow liquid line solenoid must be installed within 2 ft (0.61 m)of outdoor unit with arrow pointing towards outdoor unit.
Equal- level Outdoor/Indoor unit
• Outdoor unit and indoor unit must be within +/- 20 ft (6.1 m) vertical separation.
• Vapor line should slope towards indoor unit.
Heat Pumps Only
• No outdoor AccuRater
Outdoor unit BELOW indoor unit
• See Tables 6, 8, and 11 for longline thresholds.
• An inverted vapor- line trap must be installed at indoor unit. The top peak of trap must be greater than height of indoor coil. See
Fig. 3.
• Vertical separation and line set equivalent length must not exceed requirements listed in Tables 5, 7, or 10.
Heat Pumps Only
• Adjust outdoor AccuRater
Outdoor unit ABOVE indoor unit
• Maximum vertical separation is 200 ft (61 m)
• Maximum actual line length is 200 ft (61 m)
• Maximum total equivalent length is 250 ft (76.2 m). See Table 10.
• Vapor line traps are n o t required.
Heat Pumps Only
• Adjust outdoor AccuRater
adjustment required with less than 20 ft (6.1 m) vertical separation.
TM
per Table 9 .
TM
per Table 12.
TM
Table 13 - Common AccuRater
(Part numbers are all EA52PHxxx. The last 3 digits represent size.)
EA52PH032
035
037
038
040
042
043
046
049
052
055
057
059
061
– Piston Sizes Available through RCD
TM
063 093
065 096
067 098
068 101
070 104
073 106
076 109
078 110
080 113
082 116
084 120
086 125
088 128
090
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