Installation guide

Figure11
Measured Liquid
Pressure (psig)
oF
6
Rating Plate (required) Subcooling Temperature °F (°C)
°
°F F °F (i ............................................
8 10 ...........................................12 .....................................................................................
R-410A Required Liquid Line Temperature °F (°C)
251 78 76 74 72 70 68
259 80 78 76 74 72 70
266 82 80 78 76 74 72
274 84 82 80 78 76 74
283 86 84 82 80 78 76
291 88 86 84 82 80 78
299 90 88 86 84 82 80
308 92 90 88 86 84 82
317 94 92 90 88 86 84
326 96 94 92 90 88 86
335 98 96 94 92 90 88
345 100 98 96 94 92 90
364 104 102 100 98 96 94
374 106 104 102 100 98 96
384 108 106 104 102 100 98
395 110 108 106 104 102 100
406 112 110 108 106 104 102
416 114 112 110 108 106 104
427 116 114 112 110 108 106
439 118 116 114 112 110 108
450 120 118 116 114 112 110
462 122 120 118 116 114 112
474 124 122 120 118 116 114
SEQUENCE OF OPERATION
With power supplied to indoor and outdoor units,
transformer is energized.
On a call for cooling, the thermostat makes circuits R-Y
and R-G. Circuit R-Y energizes contactor, starting
outdoor fan motor and compressor. Circuit R-G
energizes indoor unit blower relay, starting indoor blower
motor.
When thermostat is satisfied, its contacts open,
de-energizing contactor and blower relay. Compressor
and motors stop.
NOTE: If indoor unit is equipped with a time-delay relay
circuit, the blower runs an additional length of time to
increase system efficiency.
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