5803642-TIM-B-0620
24 Johnson Controls Ducted Systems
Table 10: Physical Data
ZWTA3 thru TA5 Two Stage Gas Heat Physical Data
Component
Models
ZWTA3 ZWTA4 ZWTA5
Nominal Tonnage 3.0 4.0 5.0
AHRI COOLING PERFORMANCE
Gross Capacity @ AHRI A point (MBh) 36000 48500 59000
AHRI net capacity (MBh) 35000 47000 57000
EER 12.2 12.2 12.2
SEER 14.5 15 14.5
Nominal CFM 12000 1600 2000
System power (KW) 2.87 3.85 4.67
Refrigerant type R-410A R-410A R-410A
Refrigerant charge (lb-oz)
System 1 6-8 8-6 7-8
System 2 ---
AHRI HEATING PERFORMANCE
Heating model (N,S)06 (N,S)08 (N,S)11 (N,S)06 (N,S)08 (N,S)11 (N,S)08 (N,S)11 (N,S)16
Heat input (K Btu) 60 80 120 60 80 120 80 120 160
Heat output (K Btu) 49 65 97 49 65 97 65 97 129
AFUE % - - - - - -
Steady state efficiency (%) 81.5 81 81 81.5 81 81 81 81 80.5
No. burners 446446468
No. stages 2
1
2
2
2
2
2
1
2
2
2
2
2
2
2
2
2
2
Temperature Rise Range (ºF) 20-50°F 25-65°F 50-80°F 20-50°F 25-65°F 40-70°F 25-65°F 35-65°F 45-75°F
Gas Limit Setting (ºF) 235°F 200°F 255°F 235°F 200°F 255°F 200°F 245°F 240°F
Gas piping connection (in.) 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4
DIMENSIONS (inches)
Length 89 89 89
Width 595959
Height 42 42 42
OPERATING WT. (lbs.) 740 775 770
COMPRESSORS
3
Type
Scroll Scroll Scroll
Quantity 1 1 1
Unit Capacity Steps (%) 100 100 100
CONDENSER COIL DATA
Face area (Sq. Ft.) 18.5 23.8 23.8
Rows 111
Fins per inch 23 23 23
Tube diameter (in./MM) .71/18 .71/18 .71/18
Circuitry Type 2-pass Microchannel 2-pass Microchannel 2-pass Microchannel
EVAPORATOR COIL DATA
Face area (Sq. Ft.) 7.9 10.5 10.5
Rows 333
Fins per inch 15 15 15
Tube diameter 0.375 0.375 0.375
Refrigerant control TXV TXV TXV
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