24-V WIRING — Make field 24-v connections at the 24-v termi-
nal strip. (See Fig. 8 and 9.) Connect terminal Y as shown in Fig.
8 for proper cooling operation. Use only AWG No. 18, color-
coded copper thermostat wire.
The 24-v circuit contains an automotive-type, 3-amp fuse located
on the main control board. Any direct shorts during installation,
service, or maintenance could cause this fuse to blow. If fuse
replacement is required, use ONLY a 3-amp fuse of identical size.
ACCESSORY
Electronic air cleaner (EAC)
Two terminals (EAC-1 and EAC-2) are provided for EAC
connection. The terminals are energized with 115-v, 1-amp
maximum during blower motor operation.
Step 7—Venting
Refer to the enclosed Installation Instructions, GAMA Venting
Tables for Category I Furnaces and venting tables for Category I
Fan-Assisted Furnaces. The horizontal portion of the venting
system shall maintain a minimum of 1/4-in. upward slope per
linear ft and it shall be rigidly supported every 5 ft or less with
hangers or straps to ensure that there will be no movement after
installation.
Step 8—Start-Up, Adjustment, and Safety Check
GENERAL — The furnace must have a 115-v power supply
properly connected and grounded. Thermostat wire connections at
R, W, C, and Y must be made at the 24-v terminal block on the
control board. The gas service pressure must not exceed 0.5 psig
(14-in. wc), but must be no less than 0.16 psig (4.5-in. wc).
Fig. 8—Heating and Cooling Application Wiring Diagram
Table 5—Electrical Data
UNIT SIZE
VOLTS—
HERTZ—
PHASE
OPERATING
VOLTAGE RANGE
MAX UNIT AMPS MIN WIRE GAGE
MAX WIRE LENGTH
(FT)‡
MAX FUSE OR
HACR-TYPE CKT
BKR AMPS†
Max* Min*
065-08 115—60—1 127 104 7.1 14 41 15
065-12 115—60—1 127 104 8.7 14 34 15
086-14 115—60—1 127 104 9.0 14 33 15
086-16 115—60—1 127 104 10.4 14 28 15
105-12 115—60—1 127 104 8.0 14 37 15
105-16 115—60—1 127 104 10.1 14 29 15
105-22 115—60—1 127 104 14.4 12 33 20
130-16 115—60—1 127 104 10.1 14 29 15
130-20 115—60—1 127 104 13.3 12 36 20
150-20 115—60—1 127 104 13.7 12 35 20
* Permissible limits of the voltage range at which the unit will operate satisfactorily.
† Time-delay fuse is recommended.
‡ Length shown is as measured 1 way along wire path between unit and service panel for maximum 2 percent voltage drop.
A95241
115-VOLT FIELD-
SUPPLIED
FUSED
DISCONNECT
AUXILIARY
J-BOX
CONTROL
BOX
24-VOLT
TERMINAL
BLOCK
THREE-WIRE
HEATING-
ONLY
FIVE
WIRE
NOTE 1
NOTE 2
FIELD-SUPPLIED
FUSED DISCONNECT
CONDENSING
UNIT
TWO
WIRE
FURNACE
R
G
C
WCR GY
GND
GND
FIELD 24-VOLT WIRING
FIELD 115-, 208/230-, 460-VOLT WIRING
FACTORY 24-VOLT WIRING
FACTORY 115-VOLT WIRING
208/230- OR
460-VOLT
THREE
PHASE
208/230-
VOLT
SINGLE
PHASE
WHT
BLK
WHT
BLK
NOTES: Connect Y-terminal as shown for proper operation.
Some thermostats require a "C" terminal connection as shown.
If any of the original wire, as supplied, must be replaced, use
same type or equivalent wire.
W
Y
GND
THERMOSTAT
TERMINALS
1.
2.
3.
7
→
→
To Next Page
Loading...
