16
CONTROL WIRING
(See Figure 3)
If the low voltage control wiring is run in conduit with the power supply, Class I insu-
lation is required. Class II insulation is required if run separate. Low voltage wiring
may be run through the insulated bushing provided in the 7/8
ⴖ
hole in the base
panel, up to and attached to the pigtails from the bottom of the control box. Conduit
can be run to the base panel if desired by removing the insulated bushing.
A thermostat and a 24 volt, 40VA minimum transformer are required for the control
circuit of the condensing unit. The furnace or the air handler transformer may be
used if sufficient. Use Table 7 to size the 24 volt control wiring.
All field control wiring between the condensing unit and thermostat should be made
in the furnace or air handler.
THERMOSTAT WIRING IN 16 SEER APPLICATIONS
Figure 3 shows typical system wiring of 16 SEER condensing units with gas fur-
naces or air handlers. Reference Table 8 for an explanation of the control wiring
symbols. Refer to the particular furnace or air handler installation instructions for
additional system control wiring information.
NOTE:
Refer to thermostat installation instructions for specific control wiring sym-
bol explanations.
NOTE:
16 SEER applications (except the 2-ton system) require specific airflow
across the indoor coil to maintain an acceptable latent/sensible cooling ratio. Refer
to the indoor coil, furnace, or air handler installation instructions for additional infor-
mation.
!
WARNING
THE UNIT MUST BE PERMANENTLY GROUNDED. FAILURE TO DO SO
CAN CAUSE ELECTRICAL SHOCK RESULTING IN SEVERE PERSONAL
INJURY OR DEATH.
O
G
W2
W
C
(-)GPL Furnace
Interface
Control Board
Y1
E/W1
Model 1F95-CA397 Thermostat
AC
Outdoor Unit
W2
Y1
Y2
R
C
L
R
B
0DD
G
B
Y2
DHM
R
C
L
Y
Note: Refer to Thermostat Installation Instructions for more information
Y
L
O
V/W2
G
(-)GFD & (-)GGD
Furnace
Interface
Control Board
Y1
E/W1
Model 1F95-CA397 Thermostat
AC
Outdoor Unit
W2
Y1
Y2
R
C
L
R
DEHUM
G
B
Y2
DHM
R
C
L
W
Y
H
Y
L
C
FIGURE 3
CONTROL WIRING FOR GAS OR ELECTRIC HEAT FOR USE WITH WHITE-RODGERS THERMOSTAT
Typical Control Wiring with White-Rodgers Thermostat
Control Wiring for Gas Heat (-)GPL Furnace
Control Wiring for Gas Heat (-)GFD & (-)GGD Furnace
O
W2
G
Y1
Y2
W1
(-)BHM
Air Handler
Interface
Control Board
Y1
E/W1
Model 1F95-CA397 Thermostat
AC
Outdoor Unit
W2
Y1
Y2
R
C
L
B
0DD
C
R
G
B
Y2
DHM
R
C
L
1
1
W1 and W2 may be jumped to eliminate electric heat staging
Note: Refer to Thermostat Installation Instructions for more information
▲
▲
1
W1 & W2 may be jumpered to eliminate electric heat staging.
Note: Refer to Thermostat Installation Instructions for more information
Note: Refer to Thermostat Installation Instructions for more information
Note: Refer to Thermostat Installation Instructions for more information
(-)BHM
Air Handler
Interface
Board
(-)GPL Furnace
Interface
Board
(-)GFD & (-)GGD
Furnace
Interface
Board
Содержание ARL Series
Страница 28: ...28 FIGURE 8 ARL 024 ARL 036 ARL 048 WIRING DIAGRAM ...
Страница 29: ...29 FIGURE 9 ASL 036 WIRING DIAGRAM ...
Страница 30: ...30 FIGURE 10 ARL 060 WIRING DIAGRAM ...
Страница 31: ...31 ...
Страница 32: ...32 CM 1005 ...