Technical Guide

718444-YTG-F-0214
8 Johnson Controls Unitary Products
DNZ Two Stage Physical Data
Component
Models
DNZ024 DNZ030 DNZ036 DNZ042 DNZ048 DNZ060
Nominal Tonnage 2.0 2.5 3.0 3.5 4.0 5.0
AHRI COOLING PERFORMANCE
Gross Capacity @ AHRI A point
(MBH)
24.7 30.8 35.6 43.0 48.8 59.5
AHRI net capacity (MBH) 24.0 30.0 34.2 41.5 46.0 56.0
EER 11.6 11.5 11.1 11.6 11.00 11.00
SEER 13.2 13.2 13.2 13.4 13.0 13.0
Nominal CFM 850 940 1200 1300 1550 1600
System power (KW) 2.1 2.7 3.2 3.6 4.2 5.1
Refrigerant type R-410A R-410A R-410A R-410A R410A R410A
Refrigerant charge (lb-oz) 3-10 4-0 4-0 4-14 4-8 5-2
AHRI HEATING PERFORMANCE
Heating model D056 D056 D056 D072 D090 D090 D110 D090 D110
Heat input (K Btu) 70/45.5 70/45.5 70/45.5 90/58.5 108/70.2 108/70.2 135/87.8 108/70.2 135/87.8
Heat output (K Btu) 56/36.4 56/36.4 56/36.4 72/46.8 87/56.2 87/56.2 108/70.2 87/56.2 108/70.2
AFUE % 81.0 81.0 81.0 81.0 81.0 81.0 81.0 81.0 81.0
No. burners 3 3 34 4 4545
No. stages 2 2 22 2 2222
Temperature Rise Range (ºF) 30-60 30-60 25-55 30-60 45-75 35-65 45-75 35-65 45-75
Gas Limit Setting (ºF) 160 160 160 160 175 175 170 175 170
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.)
Unit Weight (lbs.) 378 398 402 460 465 480
COMPRESSOR
Type Recip 1-spd Recip 1-spd Recip 1-spd Recip 1-spd Scroll 1-spd Scroll 1-spd
CONDENSER COIL DATA
Face area (Sq. Ft.) 11.9 11.9 11.9 15 15 15
Rows 111111
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 233334
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
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 111111
Motor HP 1/4 1/4 1/4 1/3 1/3 1/2
RPM 1100 1100 1100 1100 1100 1090
Nominal total CFM 2400 2400 2400 3200 3200 3200
DIRECT DRIVE EVAP FAN DATA
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 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