1101790-UIM-C-0414
4
Johnson Controls Unitary Products
3.
Gas-Fired Central Furnace Standard, ANSI Z21.47a. -
Latest Edition
4.
Local building codes, and
5.
Local gas utility requirements
In Canada:
1.
Canadian Electrical Code, CSA C22.1
2.
Installation Codes, CSA - B149.1.
3.
Local plumbing and waste water codes, and
4.
Other applicable local codes.
Refer to unit application data found in this document.
After installation, gas fired units must be adjusted to obtain a
temperature rise within the range specified on the unit rating plate.
If components are to be added to a unit to meet local codes,
they are to be installed at the dealer’s and/or customer’s
expense.
Size of unit for proposed installation should be based on heat
loss/heat gain calculation made according to the methods of Air
Conditioning Contractors of America (ACCA).
This furnace is not to be used for temporary heating of buildings
or structures under construction.
Figure 1: Component Location
Direct Drive
Condenser Fan Motor
Highly Efficient Enhanced Copper
Tube/Aluminum Fin Evaporator Coil
Highly Efficient Enhanced Copper Tube/Enhanced Aluminum Fin
Decorative Protective Coil Guard
High Efficiency
Compressor Rigidly
Mounted
Pilot Assembly
High Grade Aluminized In-Shot Burners
Low Voltage Terminal Block
Spark Ignition Control
Automatic Gas Valve
(1/2" - NPTF)
Power Draft Motor
Direct Drive Blower Motor With
Slide-Out Blower Assembly
Heavy Gauge
Removable Base Rails
Rear and Bottom Return Air
and Supply Airduct Openings
Matted Textured
Finish
Blow-Through Design With
Reliable Aluminized Steel
Tubular Heat Exchangers
CFM Selector Board
York Guard Defrost Control
Table 1:
Unit Limitations
Model
(Tons)
Unit Voltage
Unit Limitations
Applied Voltage
Outdoor DB Temp
Min
Max
Max (°F)
DHQ024
(2.0)
208/230-1-60
187
252
125
DHQ030
(2.5)
208/230-1-60
187
252
125
DHQ036
(3.0)
208/230-1-60
187
252
125
DHQ042
(3.5)
208/230-1-60
187
252
125
DHQ048
(4.0)
208/230-1-60
187
252
125