Carrier 48AJ Heating System User Manual


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12-Pass 4-Pass
12-Pass 4-Pass
12-Pass 4-Pass
12-Pass 4-Pass
12-Pass 4-Pass
12-Pass 4-Pass
12-Pass 4-Pass
12-Pass 4-Pass
12-Pass 4-Pass
12-Pass 4-Pass
12-Pass 4-Pass
12-Pass 4-Pass
12-Pass 4-Pass
4-Pass
6-Pass 4-Pass
4-Pass
6-Pass 4-Pass
4-Pass
6-Pass 4-Pass
4-Pass
6-Pass 4-Pass
4-Pass
4-Pass
4-Pass
4-Pass
4-Pass
4-Pass
4-Pass
4-Pass
4-Pass
4-Pass
4-Pass
4-Pass
4-Pass
4-Pass
4-Pass
4-Pass
4-Pass
4-Pass
12-Pass 4-Pass
12-Pass 4-Pass
12-Pass 4-Pass
12-Pass 4-Pass
12-Pass 4-Pass
12-Pass 4-Pass
12-Pass 4-Pass
12-Pass 4-Pass
12-Pass 4-Pass
12-Pass
12-Pass
12-Pass
12-Pass
6-Pass
6-Pass
6-Pass
6-Pass
TXV #1
TXV #2
Compressor #1
Muffler
HPS & LPS mounted on
compressor
HPS- HK02ZA428
Cut-In - 320 PSI
Cut-out - 420 PSI
LPS - HK02ZB027
Cut -In - 22 PSI
Cut-out - 7 PSI
Compressor #1
Muffler
HPS & LPS mounted on
compressor
LEGEND
Fig. 86 — Typical Refrigerant Circuiting (48AJ,AK,AW,AY035)
FPS — Freeze Protection Switch
HPS — High-Pressure Switch
LPS — Low-Pressure Switch
TXV — Thermostatic Expansion Valve
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