Installation guide

cliprobethatallowsliquidrefrigeranttoflowl_:omcylinderin
uprightposition.Checkcylinderlabelforcorrectpositiontoallow
liquidflow.
COOLINGONLYPROCEDURE
NOTE:If subcoolingchargingconditionsarenotfavorable,
chargemustbeweighedinaccordancewithunitratingplate±0.6
oziftof3/8-in.liquidlineaboveorbelow15ftrespectively.
EXAMPLE:
Tocalculateadditionalchargerequiredfora25 ft line set:
25 ft - 15 f't 10 ft X 0.6 ozif't 6 oz of additional charge
Units installed with cooling anode TXV require charging with the
subcooling method.
i. Operate unit a mininmm of I0 minutes before checking
charge.
2. Measure liquid seawice valve pressure by attaching an accurate
gage to service port.
3. Measure liquid line temperature by attaching an accurate
thermistor type or electronic thermometer to liquid line near
outdoor coil.
4. Refer to Heat Pump Charging Instructions label on outdoor
unit for required subcooling temperature.
5. Refer to Table 3. Find the point where required subcooling
temperature intersects measured liquid seawice valve pressure.
6. To obtain required subcooling temperature at a specific liquid
line pressure, add refrigerant if liquid line temperature is
higher than indicated or reclaim refrigerant if temperature is
lower. Allow a tolerance of ± 3°F.
HEATING CHECK CHART PROCEDURE
To check system operation during heating cycle, refer to the Heat
Pump Charging Instructions label on outdoor unit. This chart
indicates whether a correct relationship exists between system
operating pressure and air temperature entering indoor and outdoor
units. If pressure and temperature do not match on chart, system
rel_:igerant charge may not be correct. Do not use chart to adjust
refrigerant charge.
NOTE: In heating anode, check refrigerant charge only when
pressures are stable. If in doubt, remove charge and weigh in
correct refrigerant charge.
NOTE: When charging is necessary during heating season,
charge must be weighed in accordance with unit rating plate ±0.6
ozift of 3/8-in. liquid line above or below 15 f't, respectively.
EXAMPLE:
To calculate additional charge reqnired for a 25 ft line set:
25 ft - 15 f't i0 ff X 0.6 ozift 6 oz of additional charge.
Step 15--Final Checks
IMPORTANT: Before leaving job, be sure to do the following:
i. Securely fasten all panels and covers.
2. Tighten service valve stem caps to 1i12-tum past ringer tight.
3. Leave User's Manual with owner. Explain system operation
and periodic maintenance requirements outlined in manual.
4. Fill out Dealer Installation Checklist and place in customer
file.
CARE AND MAINTENANCE
For continuing high performance and to minimize possible equip-
anent failure, periodic maintenance nmst be performed on this
equipment.
Frequency of maintenance may vary depending upon geographic
areas, such as coastal applications.
Table 3--Required Liquid-Line Temperature (°F)
LIQUID PRESSURE AT REQUIRED SUBCOOLING TEMPERATURE
SERVICE VALVE (°F)
(PSIG) 5 10 15 20
174 56 51 46 41
181 58 53 48 43
188 61 56 51 46
195 63 58 53 48
202 65 60 55 50
209 67 62 57 52
216 69 64 59 54
223 71 66 61 56
230 73 68 63 58
237 75 70 65 60
244 77 72 67 62
251 79 74 69 64
258 81 76 71 66
265 82 77 72 67
272 84 79 74 69
279 86 81 76 71
286 88 83 78 73
293 89 84 79 74
300 91 86 81 76
307 93 88 83 78
314 94 89 84 79
321 96 91 86 81
328 97 92 87 82
335 99 94 89 84
342 100 95 90 85
349 102 97 92 87
356 103 98 93 88
363 105 100 95 90
370 106 101 96 91
377 107 102 97 92
384 109 104 99 94
391 110 105 100 95
398 112 107 102 97
405 113 108 103 98
412 114 109 104 99
419 115 110 105 100
426 117 112 107 102
433 118 113 108 103
440 119 114 109 104
447 120 115 110 105
454 122 117 112 107
461 123 118 113 108
468 124 119 114 109
475 125 120 115 110
482 126 121 116 111
489 127 122 117 112
496 129 124 119 114
503 130 125 120 115
510 131 126 121 116
517 132 127 122 117
524 133 128 123 118
531 134 129 124 119
538 135 130 125 120
545 136 131 126 121
552 137 132 127 122
559 138 133 128 123
566 139 134 129 124
573 140 135 130 125
580 141 136 131 126
587 142 137 132 127
594 143 138 133 128
601 144 139 134 129
608 145 140 135 130