Technical Guide

718444-YTG-E-0613
10 Johnson Controls Unitary Products
DNQ Two Stage Physical Data
Component
Models
DNQ024 DNQ030 DNQ036 DNQ042 DNQ048 DNQ060
Nominal Tonnage 2.0 2.5 3.0 3.5 4.0 5.0
AHRI COOLING PERFORMANCE
Gross Capacity @ AHRI A point (MBH) 24.0 29.8 35.7 41.5 49.6 56.8*
AHRI net capacity (MBH) 23.6 29.0 34.4 40.0 48.0 55.0*
EER 12.0 12.0 12.0 12.0 12.0 12.0*
SEER 14.0 14.0 14.0 14.0 14.0 14.0*
Nominal CFM 800 900 1100 1400 1500 1550
System power (KW) 2.0 2.4 2.9 3.3 4.0 4.6
Refrigerant type R-410A R-410A R-410A R410A R-410A R-410A
Refrigerant charge (lb-oz) 3-8 3-2 3-10 4-9 4-6 5-15
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 % 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0 80.0
No. burners 3 3 3 4 4 4 5 4 5
No. stages 2 2 2 2 2 2 2 2 2
Temperature Rise Range (ºF) 30-60 30-60 25-55 30-60 45-75 35-65 45-75 35-65 45-75
Max. Outlet Air Temp. (ºF) 175 175 175 175 175 175 175 175 175
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.) 390 425 430 485 490 530
COMPRESSOR
Type Recip 1-spd Scroll 1-spd Scroll 1-spd Scroll 1-spd Scroll 1-spd Scroll 1-spd
CONDENSER COIL DATA
Face area (Sq. Ft.) 7.9 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 0.98 / 25
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 TXV TXV TXV TXV 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 1 1 1 1 1 1
Motor HP 1/4 1/4 1/4 1/3 1/3 1/3
RPM 1100 1100 1100 1100 1100 1100
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 12 x 11 12 x 11 12 x 11
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