York ZT SERIES - Charging the Unit; ZT078 Charging Table - System 1; ZT078 Charging Table - System 2

6021980-UIM-A-1120
Johnson Controls Ducted Systems 77
Charging the unit
Charge unit by weight using name plate data or use charging tables.
Table 34: ZT078 charging table - system 1
Table 35: ZT078 charging table - system 2
Air flow
Indoor Db/Wb
Outdoor DB
Suction
pressure
Suction
temp.
Discharge
pressure
Liquid temp. Delta T Db
Entering evap
Db
Leaving evap
Db
300 CFM/ton
80/62
75 124 53 267 76 29 80 51
85 127 53 306 86 28 80 52
95 131 55 350 95 26 80 54
300 CFM/ton
80/67
75 135 58 268 75 25 80 55
85 138 58 309 85 23 80 57
95 140 59 355 95 22 80 58
300 CFM/ton
80/72
75 147 64 269 75 20 80 60
85 151 64 310 85 19 80 61
95 153 64 355 95 17 80 63
300 CFM/ton
75/62
75 123 51 268 76 25 75 51
85 127 53 306 86 23 75 52
95 131 54 354 96 21 75 54
400 CFM/ton
80/62
75 135 58 258 76 26 80 54
85 137 58 303 85 25 80 55
95 140 59 354 97 24 80 56
400 CFM/ton
80/67
75 146 64 260 76 22 80 58
85 148 62 304 85 21 80 59
95 151 62 355 97 19 80 61
400 CFM/ton
80/72
75 155 70 271 77 17 80 63
85 161 69 305 86 16 80 64
95 164 68 354 97 15 80 65
400 CFM/ton
75/62
75 134 57 264 77 22 75 53
85 135 57 308 86 21 75 54
95 137 57 353 96 19 75 56
Air flow
Indoor Db/Wb
Outdoor DB
Suction
pressure
Suction
temp.
Discharge
pressure
Liquid temp. Delta T Db
Entering evap
Db
Leaving evap
Db
300 CFM/ton
80/62
75 121 52 272 74 29 80
51
85 124 54 329 84 28 80
52
95 131 56 398 95 26 80
54
300 CFM/ton
80/67
75 133 57 276 75 25 80
55
85 137 58 329 85 23 80
57
95 140 59 416 95 22 80
58
300 CFM/ton
80/72
75 144 62 274 75 20 80
60
85 150 62 322 85 19 80
61
95 154 63 382 95 17 80
63
300 CFM/ton
75/62
75 121 52 272 73 25 75
51
85 124 54 329 84 23 75
52
95 130 54 374 94 21 75
54
400 CFM/ton
80/62
75 133 57 262 73 26 80
54
85 135 57 304 83 25 80
55
95 140 58 357 95 24 80
56
400 CFM/ton
80/67
75 144 60 260 73 22 80
58
85 147 61 303 84 21 80
59
95 152 61 352 95 19 80
61
400 CFM/ton
80/72
75 157 65 265 74 17 80
63
85 160 65 306 84 16 80
64
95 165 65 350 96 15 80
65
400 CFM/ton
75/62
75 131 55 261 74 22 75
53
85 134 56 305 83 21 75
54
95 137 55 359 94 19 75
56