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LIMITATIONS
These units must be installed in accordance with the following:
In U.S.A.:
1. National Electrical Code, ANSI/NFPA No. 70 - Latest Edition
2. National Fuel Gas Code, ANSI Z223.1 - Latest Edition
3. Gas-Fired Central Furnace Standard, ANSI Z21.47a. - Latest Edi-
tion
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
BLOWER MOTOR
TXV
INDOOR COIL
INDOOR BLOWER
COMPRESSOR
REMOVABLE
BASE RAILS
FIGURE 1: Component Location
Table 1: Unit Limitations
Model
24
30
36
42
48
60
Johnson Controls Unitary Products
Unit Voltage
208/230-1-60
208/230-1-60
208/230-1-60
208/230-1-60
208/230-1-60
208/230-1-60
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.
FAN MOTOR
OUTDOOR FAN
Unit Limitations
Applied Voltage
Min
Max
187
252
187
252
187
252
187
252
187
252
187
252
5132210-UIM-H-0916
COIL GUARD PANEL
OUTDOOR COIL
(Behind Panel)
CONTROL BOARD
TRANSFORMER
HIGH VOLTAGE
CONTACTOR
PRESSURE SWITCH
DRAFT INDUCER BLOWER
GAS HEAT
EXCHANGER
GAS VALVE
BURNER
ASSEMBLY
A0444-001
Outdoor DB Temp
Max (°F)
125
125
125
125
125
125
3
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