18
G
G
G
G
G
A S
A S
A S
A S
A S
S
S
S
S
S
U P P L
U P P L
U P P L
U P P L
U P P LY
Y
Y
Y
Y
A N D
A N D
A N D
A N D
A N D
P
P
P
P
P
I P I N G
I P I N G
I P I N G
I P I N G
I P I N G
If it is necessary for the installer to supply additional line voltage
wiring to the inside of the furnace, the wiring must conform to all
local codes, and have a minimum temperature rating of 105°C. All
line voltage wire splices must be made inside the furnace junction
box.
The integrated control module humidifier terminals (HUM) are en-
ergized with 115 volts whenever the induced draft blower is ener-
gized. The integrated control module electronic air cleaner termi-
nals (EAC) are energized with 115 volts whenever the circulator
blower is energized.
24 V
24 V
24 V
24 V
24 V
OLT
OLT
OLT
OLT
OLT
H
H
H
H
H
UMIDIFIER
UMIDIFIER
UMIDIFIER
UMIDIFIER
UMIDIFIER
A 5" long brown wire in the wire harness at the low fire pressure
switch provides 24 VAC humidifier control. This wire is powered
any time the pressure switch is closed. To connect 24 VAC HUM,
connect the 24 VAC line of the humidifier to the 5” brown wire. The
connection can be made by either stripping the wire and using a
wire nut or by using a field supplied quick connect terminal. The
wiring must conform to all local and national codes. Connect the
COM side of the humidifier to the C terminal on the furnace control
board (or to the COM side of the 24 VAC transformer). Do not
connect 115V humidifier to these terminals.
G
G
G
G
G
A S
A S
A S
A S
A S
S
S
S
S
S
UPPL
UPPL
UPPL
UPPL
UPPLY
Y
Y
Y
Y
A N D
A N D
A N D
A N D
A N D
P
P
P
P
P
IPING
IPING
IPING
IPING
IPING
The furnace rating plate includes the approved furnace gas input
rating and gas types. The furnace must be equipped to operate on
the type of gas applied. This includes any conversion kits required
for alternate fuels and/or high altitude.
CAUTION
T
O
PREVENT
UNRELIABLE
OPERATION
OR
EQUIPMENT
DAMAGE
,
THE
INLET
GAS
SUPPLY
PRESSURE
MUST
BE
AS
SPECIFIED
ON
THE
UNIT
RATING
PLATE
WITH
ALL
OTHER
HOUSEHOLD
GAS
FIRED
APPLIANCES
OPERATING
.
Inlet gas supply pressures must be maintained within the ranges
specified in the following table. The supply pressure must be con-
stant and available with all other household gas fired appliances
operating. The minimum gas supply pressure must be maintained
to prevent unreliable ignition. The maximum must not be exceeded
to prevent unit overfiring.
Natural Gas
Minimum: 5.0" w.c.
Maximum:10.0" w.c.
Propane Gas
Minimum: 11.0" w.c.
Maximum:13.0" w.c.
Inlet Gas Supply Pressure
NOTE:
NOTE:
NOTE:
NOTE:
NOTE: Adjusting the minimum supply pressure below the limits in
the above table could lead to unreliable ignition. Gas input to the
burners must not exceed the rated input shown on the rating plate.
Overfiring of the furnace can result in premature heat exchanger
failure. Gas pressures in excess of 13 inches water column can also
cause permanent damage to the gas valve.
At all altitudes, the manifold pressure must be within 0.3 inches
w.c. of that listed in the Specification Sheet applicable to your model
for the fuel used. At all altitudes and with either fuel, the air tempera-
ture rise must be within the range listed on the furnace nameplate.
Should this appliance be converted to LP, refer to the instructions
included in the factory authorized LP conversion kit.
H
H
H
H
H
IGH
IGH
IGH
IGH
IGH
A
A
A
A
A
LTITUDE
LTITUDE
LTITUDE
LTITUDE
LTITUDE
D
D
D
D
D
ERATE
ERATE
ERATE
ERATE
ERATE
IMPOR
IMPOR
IMPOR
IMPOR
IMPORT
T
T
T
TANT NO
ANT NO
ANT NO
ANT NO
ANT NOTE:
TE:
TE:
TE:
TE: The furnace will naturally derate itself with
altitude. Do not attempt to increase the firing rate by changing
orifices or increasing the manifold pressure. This can cause poor
combustion and equipment failure.
High altitude installations may require both a pressure switch and
an orifice change. These changes are necessary to compensate for
the natural reduction in the density of both the gas fuel and the
combustion air at higher altitude.
For installations above 7000 feet, please refer to your distributor for
required kit(s).
High Stage Low Stage
Natural
None
#43
3.5" w.c.
1.9" w.c.
None
Propane
LPM-05*
1
LPM-06*
2
#55
10.0" w.c.
6.0" w.c.
None
0-7000
Manifold Pressure
Pressure
Switch Change
Altitude
Kit
1
LPM-05* supports White-Rodgers 2-stage valve only
2
LPM-06* supports Honeywell and White-Rodgers 2-stage valves
Orifice
NOTE:
In Canada, gas furnaces are only certified to 4500 feet.
Gas
Contact the distributor for a tabular listing of appropriate
manufacturer’s kits for propane gas and/or high altitude installa-
tions. The indicated kits must be used to insure safe and proper
furnace operation. All conversions must be performed by a quali-
fied installer, or service agency.
P
P
P
P
P
ROPANE
ROPANE
ROPANE
ROPANE
ROPANE
G
G
G
G
G
AS
AS
AS
AS
AS
C
C
C
C
C
ONVERSION
ONVERSION
ONVERSION
ONVERSION
ONVERSION
WARNING
P
OSSIBLE
PROPERTY
DAMAGE
,
PERSONAL
INJURY
OR
DEATH
MAY
OCCUR
IF
THE
CORRECT
CONVERSION
KITS
ARE
NOT
INSTALLED
.
T
HE
APPROPRIATE
KITS
MUST
BE
APPLIED
TO
ENSURE
SAFE
AND
PROPER
FURNACE
OPERATION
.
A
LL
CONVERSIONS
MUST
BE
PERFORMED
BY
A
QUALIFIED
INSTALLER
OR
SERVICE
AGENCY
.
This unit is configured for natural gas. The appropriate manufacturer’s
propane gas conversion kit, must be applied for propane gas instal-
lations. Refer to the “Propane Gas and/or High Altitude Installations”
section for details.
Contact your distributor for a tabular listing of appropriate
manufacturer’s kits for propane gas and/or high altitude installa-
tions. The indicated kits must be used to insure safe and proper
furnace operation. All conversions must be performed by a quali-
fied installer, or service agency.
Содержание GDVC80703B
Страница 46: ...46 THIS PAGE LEFT BLANK INTENTIONALLY...
Страница 47: ...47 THIS PAGE LEFT BLANK INTENTIONALLY...