Technical Guide
333491-YTG-G-0211
Johnson Controls Unitary Products 7
Physical Data
DNZ024-060 Single Stage Gas Heat
Component
Models
DNZ024 DNZ030 DNZ036 DNZ042 DNZ048 DNZ060
Nominal Tonnage 2.0 2.5 3.0 3.5 4.0 5.0
ARI COOLING PERFORMANCE
Gross Capacity @ ARI A point (MBh) 24.7 30.8 35.6 43.0 50.0 59.5
ARI net capacity (MBh) 24.0 30.0 34.2 41.5 48.0 57.5
EER 11.6 11.5 11.1 11.6 11.1 10.9
SEER 13.2 13.2 13.2 13.4 13.4 13.0
Nominal CFM 850 940 1200 1300 1540 1600
System power (KW) 2.1 2.7 3.2 3.6 4.4 5.3
Refrigerant type R-410A R-410A R-410A R-410A R-410A R-410A
Refrigerant charge (lb-oz) 3-10 4-0 4-0 4-14 4-4 5-2
ARI HEATING PERFORMANCE
Heating model N036 N056 N036 N056 N036 N056 N072 N065 N090 N065 N090 N110 N065 N090 N110
Heat input (K Btu) 45 70 45 70 45 70 90 80 108 80 108 135 80 108 135
Heat output (K Btu) 36 56 36 56 36 56 72 64 87 64 87 108 64 87 107
AFUE % 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0
Steady state efficiency (%) 808080808080808080808080808080
No. burners 232323434345345
No. stages 111111111111111
Temperature Rise Range (ºF) 25-55 30-60 25-55 30-60 25-55 25-55 30-60 25-55 45-75 25-55 35-65 45-75 25-55 35-65 45-75
Gas Limit Setting (ºF) 140 160 140 160 140 160 160 150 175 150 175 160 150 175 160
Gas piping connection (in.) 1/2 1/2 1/2 1/2 1/2 1/2
DIMENSIONS (inches)
Length 49 1/8 49 1/8 49 1/8 49 1/8 49 1/8 49 1/8
Width 47 1/4 47 1/4 47 1/4 47 1/4 47 1/4 47 1/4
Height 33 1/2 33 1/2 33 1/2 41 1/2 41 1/2 41 1/2
OPERATING WT. (lbs.) 378 398 402 460 465 480
COMPRESSORS
Type Recip 1-spd Recip 1-spd Recip 1-spd Recip 1-spd Scroll 1-spd Scroll 1-spd
Quantity 1 1 1 1 1 1
CONDENSER COIL DATA
Face area (Sq. Ft.) 11.9 11.9 11.9 15 15 15
Rows 1 1 1 1 1 1
Fins per inch 23 23 23 23 23 23
Tube diameter (in.) 0.71/18 0.71/18 0.71/18 0.71/18 0.71/18 0.71/18
Circuitry Type 2-pass Micro-Channel
EVAPORATOR COIL DATA
Face area (Sq. Ft.) 3.4 3.4 3.4 4.4 4.4 4.4
Rows 2 3 3 3 3 4
Fins per inch 15 13 13 16 16 13
Tube diameter 3/8 3/8 3/8 3/8 3/8 3/8
Circuitry Type Interlaced Interlaced Interlaced Interlaced Interlaced Interlaced
Refrigerant control Orifice Orifice Orifice Orifice TXV TXV
CONDENSER FAN DATA
Quantity 1 1 1 1 1 1
Fan diameter (Inch) 22 22 22 22 22 22
Type Prop Prop Prop Prop Prop Prop
Drive type Direct Direct Direct Direct Direct Direct
No. speeds 1 1 1 1 1 1
Number of motors 1 1 1 1 1 1
Motor HP each 1/4 1/4 1/4 1/3 1/3 1/2
RPM 1100 1100 1100 1120 1120 1090
Nominal total CFM 2400 2400 2400 3200 3200 3200
DIRECT DRIVE EVAP FAN DATA
Quantity 1 1 1 1 1 1
Fan Size (Inch) 10 x 8 10 x 8 11 x 10 11 x 10 11 x 10 11 x 10
Type Centrifugal Centrifugal Centrifugal Centrifugal Centrifugal Centrifugal
Motor HP each 1/2 3/4 3/4 3/4 1 1
RPM Variable Variable Variable Variable Variable Variable
Frame size 48 48 48 48 48 48
FILTERS
Quantity - Size 1 - 20 x 20 x 1 1 - 20 x 20 x 1 1 - 20 x 20 x 1 2 - 20 x 12 x 1 2 - 20 x 12 x 1 2 - 20 x 12 x 1