Saturated Properties; System Operation; Heat Pump Flow Diagram; Demand Defrost Control Module - Johnson Controls 13 SEER - THGD Installation Manual

359513-UIM-A-0408
TABLE 1: R-22 Saturated Properties
Pressure Pressure
Temp °F
PSIG PSIG
80 48 110
82 49 112
84 50 114
86 51 116
88 52 118
90 54 120
92 55 122
94 56 124
96 57 126
98 58 128
100 59 130
102 60 132
104 61 134
106 62 136
108 63 138
CHARGE COMPENSATOR
(Empty in cooling / full in heating)
(Not included in all Units)
OUTDOOR
COIL
LIQUID
SENSOR
COOLING CYCLE FLOW
HEATING CYCLE FLOW
FIGURE 10: Heat Pump Flow Diagram
DEMAND
DEFROST CURVE
X/L
SELECTION JUMPER
R
C
Y
O
W
W1/66
FIGURE 11: Demand Defrost Control Module
10
Pressure
Temp °F
PSIG
64 140
65 142
66 144
67 146
68 148
69 150
70 152
71 154
72 156
73 158
74 160
75 162
76 164
77 166
78 168
SHOWN IN COOLING POSITION.
** NOTE: The indoor coil is shipped with an orifice. The orifice must be replaced with a TXV Kit.
P TEST
1
2
3
4
PRESSURE
REV
VALVE SWITCH M
Pressure
Temp °F Temp °F
PSIG
78 170 91
79 172 91
80 174 92
81 176 93
82 178 94
83 180 94
84 182 95
84 184 96
85 186 97
86 188 97
87 190 98
88 192 99
88 194 99
89 196 100
90 198 101
FIELD CONNECTED LINE
4-WAY
REVERSING
VALVE
FILTER DRYER
(Solid core)
COMPRESSOR
SUCTION
ACCUMULATOR
BI-FLOW
TXV/CHECK
VALVE OR ORIFICE (Heating)
SECTION VIII: SYSTEM OPERATION
ANTI-SHORT CYCLE DELAY
The control includes a five-minute anti-short cycle delay (ASCD) timer
to prevent the compressor from short cycling after a power or thermo-
stat signal interruption. The ASCD timer is applied when the control is
first powered from the indoor unit thermostat and immediately following
the completion of a compressor run cycle. The compressor and the out-
door fan will not operate during the five minutes that the timer is active.
The ASCD timer can be bypassed by connecting the TEST terminals
for three seconds while the thermostat is calling for compressor opera-
tion (Y input signal energized).
Pressure Pressure
Temp °F
PSIG
200 101
202 102
204 103
206 103
208 104
210 105
212 105
214 106
216 107
218 107
220 108
222 109
224 109
226 110
228 111
INDOOR COIL
BI-FLOW
TXV/CHECK
VALVE (Cooling) **
FIELD CONNECTED LINE
Johnson Controls Unitary Products
Temp °F
PSIG
230 111
232 112
234 112
236 113
238 114
240 114
242 115
244 115
246 116
248 117
250 117
252 118
254 118
256 119
258 119