129098-UIM-G-0411
Johnson Controls Unitary Products
13
Eighteen gauge thermostat wire is highly recommended.
Smaller gauge thermostat wire may be used only if the guideline below
is followed.
Do not use the thermostat wire smaller than 22 gauge. If thermostat
wire small than 18 gauge is used, pay particular attention that the con-
nections between the different wire sizes are tight.
Operational problems may be caused by loose connections or by the
use of thermostat wire that is too small to carry the required load. Any
such problems are the responsibility of the installer.
A separate 115 V.A.C. supply circuit must be used for the furnace. The
circuit should be protected by a 15 amp fuse or circuit breaker.
Avoid locations where the thermostat could be subject to drafts from
outside, or exposed to direct light from lamps, sun, fireplaces, etc., or
affected by air from a duct register blowing directly on the thermostat.
The wall thermostat should be located 52 to 66 inches above the floor.
The preferred location is on an inside wall situated in an area with good
air circulation, and where the temperature will be reasonably represen-
tative of other living areas the thermostat is controlling.
SECTION VII: ROOF JACK VENT/
COMBUSTION AIR SYSTEM
VENT AND COMBUSTION AIR SAFETY
This Category I, furnace is designed for Manufactured (Mobile) Home
and Modular Home application. It may be installed without modification
in a garage, equipment room, alcove or any other indoor location where
all required clearance to combustibles and other restrictions are met,
AND providing factory Roof Jack System meets all installation require-
ments.
The venting system must be installed in accordance with Section 5.3,Air
for Combustion and Ventilation, of the National Fuel Gas CodeZ223.1/
NFPA 54 (latest edition), or Sections 7.2, 7.3 or 7.4 of CAN/CGA
B149.1-00, National Gas and Propane Codes (latest edition) or applica-
ble provisions of the local building code and these instructions. The fur-
nace shall not be connected to any chimney, a flue serving a separate
appliance, or any appliance designed to burn solid fuel. The furnace rat-
ing plate lists the maximum vent gas temperature.
Thermostat Wire Length
(Furnace to Thermostat)
Thermostat Wire Gauge
0 - 45 feet
22
0 - 70 feet
20
FIGURE 17:
Wiring for Heat Only Thermostat
FIGURE 18:
Wiring for Electronic Heat-Cool Thermostat
FIGURE 19:
Wiring for Standard Heat-Cool Thermostat
FIGURE 20:
Wiring for Blend Air Accessory
ROOM
THERMOSTAT
FURNACE
CONTROL
R
W
R
W
ROOM
THERMOSTAT
FURNACE
CONTROL
CONDENSING
UNIT
TO AIR CONDITIONER
CONTROLS
R
W
G
Y
C
R
G
C
COMMON T’STAT CONNECTION
W
Y
ROOM
THERMOSTAT
FURNACE
PIGTAILS
CONDENSING
UNIT
TO AIR CONDITIONER
CONTROLS
R
W
G
Y
R
G
C
W
Y
ROOM
THERMOSTAT
FURNACE
PIGTAILS
CONDENSING
UNIT
TO AIR CONDITIONER
CONTROLS
R
W
G
Y
R
G
C
W
Y
BLEND AIR
CONTROL BOX
TABLE 5:
Ratings & Physical / Electrical Data
Input
Output
Nominal
1
CFM
(m
3
/min)
Cabinet Width
AFUE
Air Temp. Rise
Operation
Wgt.
MBH
kW
MBH
kW
CFM
cmm
In.
cm
°F
°C
LBS
Kg
DGAA SERIES
56
16
45
13
1305
37
19-1/2
49.5
80.0
45 - 75
25 - 41.7
163
73.9
70
21
56
16
1305
37
19-1/2
49.5
80.0
45 - 75
25 - 41.7
163
73.9
77
23
62
18
1305
37
19-1/2
49.5
80.0
45 - 75
25 - 41.7
163
73.9
90
26
72
21
1305
37
19-1/2
49.5
80.0
45 - 75
25 - 41.7
163
73.9
DGAH SERIES
56
16
45
13
1050
30
19-1/2
49.5
80.0
45 - 75
25 - 41.7
146
66.2
77
23
62
18
1050
30
19-1/2
49.5
80.0
45 - 75
25 - 41.7
146
66.2
Input
Max. Outlet
Air Temp
Blower
Blower Size
Total Unit
Ignitor
Booster Motor
& Gas Valve
Max
Over-Current
Protect
Min. wire Size
(awg) @ 75 ft
one way
MBH
kW
°F
°C
Hp
Amps
In.
cm
Amps
Amps
Amps
DGAA SERIES
56
16
165
73.9
1/3
7.3
10 x 8
25.4 x 20.3
12.0
4.1
0.6
15
14
70
21
165
73.9
1/3
7.3
10 x 8
25.4 x 20.3
12.0
4.1
0.6
15
14
77
23
165
73.9
1/3
7.3
10 x 8
25.4 x 20.3
12.0
4.1
0.6
15
14
90
26
165
73.9
1/3
7.3
10 x 8
25.4 x 20.3
12.0
4.1
0.6
15
14
DGAH SERIES
56
16
165
73.9
1/6
7.8
10 x 8
25.4 x 20.3
12.4
4.1
0.6
15
14
77
23
165
73.9
1/6
7.8
10 x 8
25.4 x 20.3
12.4
4.1
0.6
15
14
1. 0.3” Ext. Static Duct Pressure - No Coil - Std. Blower - High Speed