DSZC16 Installation Manual

7
Do not introduce liquid refrigerant from the cylinder into the crankcase of the compressor as this may damage the
compressor.
1. Break vacuum by fully opening liquid and suction base valves.
2. Set thermostat to call for cooling. Check indoor and outdoor fan operation and allow system to stabilize for 10 minutes
for fixed orifices and 20 minutes for expansion valves.
C HARGE V ERIFICATION
U SE REFRIGERANT CERTIFIED TO AHRI STANDARDS . U SED REFRIGERANT
MAY CAUSE COMPRESSOR DAMAGE , AND IS NOT COVERED UNDER THE
WARRANTY . M OST PORTABLE MACHINES CANNOT CLEAN USED
REFRIGERANT TO MEET AHRI STANDARDS .
CAUTION
V IOLATION OF EPA REGULATIONS MAY RESULT IN FINES OR OTHER
PENALTIES .
NOTICE
F INAL C HARGE A DJUSTMENT
The outdoor temperature must be 60°F or higher. Set the room thermostat to COOL, fan switch to AUTO, and set the tempera-
ture control well below room temperature.
After system has stabilized per startup instructions, check subcooling and superheat as detailed in the following section.
REFRIGERANT UNDER PRESSURE!
• D O NOT OVERCHARGE SYSTEM WITH REFRIGERANT .
• D
O NOT OPERATE UNIT IN A VACUUM OR AT NEGATIVE PRESSURE .
F
AILURE TO FOLLOW PROPER PROCEDURES MAY CAUSE PROPERTY
DAMAGE , PERSONAL INJURY OR DEATH .
WARNING
O PERATING THE COMPRESSOR WITH THE SUCTION VALVE CLOSED MAY
CAUSE SERIOUS COMPRESSOR DAMAGE .
CAUTION
SUCTION PRESSURE
PSIG R-22 R-410A
50 26 1
52 28 3
54 29 4
56 31 6
58 32 7
60 34 8
62 35 10
64 37 11
66 38 13
68 40 14
70 41 15
72 42 16
74 44 17
76 45 19
78 46 20
80 48 21
85 50 24
90 53 26
95 56 29
100 59 31
110 64 36
120 69 41
130 73 45
140 78 49
150 83 53
160 86 56
170 90 60
SATURATED SUCTION PRESSURE
TEMPERATURE CHART
SATURATED SUCTION
TEMPERATURE ºF
LIQUID PRESSURE
PSIG R-22 R-410A
200 101 70
210 105 73
220 108 76
225 110 78
235 113 80
245 116 83
255 119 85
265 121 88
275 124 90
285 127 92
295 130 95
305 133 97
325 137 101
355 144 108
375 148 112
405 155 118
415 157 119
425 n/a 121
435 n/a 123
445 n/a 125
475 n/a 130
500 n/a 134
525 n/a 138
550 n/a 142
575 n/a 145
600 n/a 149
625 n/a 152
SATURATED LIQUID PRESSURE
TEMPERATURE CHART
SATURATED LIQUID
TEMPERATURE ºF