York ZT SERIES - Physical Data

6021980-UIM-A-1120
Johnson Controls Ducted Systems 33
Table 13: Physical data
ZT078-150
Component
Models
ZT078 ZT090 ZT102 ZT120 ZT150
Nominal tonnage 6.5 7.5 8.5 10 12.5
AHRI cooling performance
Gross capacity @ AHRI A point (Mbh) 76000 91500 104000 121000 147500
AHRI net capacity (Mbh) 74000 89000 101000 117000 142000
EER 12.4
1
/12.6
2
13.1 13.1 13.1 12.5
IEER with Intellispeed 21.2 21 21 21.2 20.2
VAV IEER 20.5 20.5 18.2 19.5 19
CFM 2700 3000 3400 3600 4150
System power (KW) 5.92 6.79 7.71 8.93 11.44
Refrigerant type R-410A R-410A R-410A R-410A R-410A
Refrigerant charge (lb-oz)
System 1 5-10 8-0 8-4 7-12 10-8
System 2 5-14 7-14 8-4 7-12 9-12
Refrigerant charge (lb-oz) Magna Dry option
System 1 6-2 8-10 8-8 8-8 10-8
System 2 5-14 7-14 8-4 7-12 9-12
AHRI heating performance
Heating model N12 N18 N12 N18 N12 N18 N18 N24 N18 N24
Heat input (K Btu) 120 180 120 180 120 180 180 240 180 240
Heat output (K Btu) 96 144 96 144 96 144 144 192 144 192
AFUE % - - - - - - - - - -
Steady state efficiency (%) 80 80 80 80 80 80 80 80 80 80
No. burners 4 6 4 6 4 6 6 8 6 8
No. stages 2
3
2
3
2
3
2
3
2
3
2
3
2
3
2
3
2
3
2
3
Temperature rise range (ºF) 20-50 35-65 15-45 30-60 10-40 25-55 20-50 35-65 10-40 25-55
Gas limit setting (ºF) 165 165 165 165 215 195 195 160 195 160
Gas piping connection (in.) 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4
Dimensions (inches)
Length 119-1/2 119-1/2 119-1/2 119-1/2 119-1/2
Width 59 59 59 59 59
Height 50-3/4 50-3/4 50-3/4 50-3/4 50-3/4
Operating weight (lbs.) 1282 1283 1284 1460 1478
Operating weight (lbs.) with Magna Dry 1288 1293 1304 1481 1498
Compressors
4
Type 2-stage scroll 2-stage scroll 2-stage scroll 2-stage scroll 2-stage scroll
Quantity 2 2 2 2 2
Unit capacity steps (%) 34 / 67 / 100 29 / 57 / 100 34 / 67 / 100 34 / 67 / 100 34 / 67 / 100
Condenser coil data
Face area (sq. ft.) 29.0 29.0 29.0 47.5 47.5
Rows 1 1 2 1 2
Fins per inch 23 23 23 23 23
Tube diameter (in.)/MM .71/18 1.0/25 .71/18 0.71/18 0.71/18
Circuitry type
2-pass
Microchannel
2-pass
Microchannel
3-pass
Microchannel
2-pass
Microchannel
3-pass
Microchannel