Carrier AGAGC9PNS01B, Руководство по установке, Страница: 3 / 16

AGAGC9PNS01B Gas Conversion Kit, Propane to Natural: Installation Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
3
3. Support the manifold and remove the four (4) screws that secure the
manifold assembly to the burner box and set aside.
4. Note the location of the green/yellow wire ground wire for
re-assembly later, see Fig. 2 .
5. Remove wires from both rollout switches, see Fig. 3 .
6. Slide one-piece burner assembly out of slots on sides of burner box,
see Fig. 3 .
7. Remove the flame sensor from the burner assembly.
8. Remove the orifices from the manifold and discard.
A11407
Fig. 2 – Manifold Assembly
A11403
Fig. 3 – Burner Assembly
ORIFICE SELECTION/DERATE
A96249
Fig. 4 – Burner Orifice
For Single Stage and Two Stage Furnaces:
Determine natural gas orifice size and manifold pressure for correct
input at installed altitude by using Table 4 for Single Stage furnaces and
Table 5 for Two-Stage furnaces.
1. Obtain yearly heat−value average (at installed altitude) for local gas
supply.
2. Obtain yearly specific−gravity average for local gas supply.
3. Find installation altitude in
Table 4 or Table 5 .
For Canada altitudes of 2000 to 4500 ft., use U.S.A. Altitudes of 2001 to
3000 ft. in Table 4 or Table 5 .
4. Find closest natural gas heat value and specific gravity in Table 4 or
Table 5 .
5. Follow heat−value line and specific−gravity line to point of
intersection to find orifice size and manifold pressure settings.
For Modulating Furnaces:
Follow Steps 1 and 2 above.
For Step 3 use:
Table 6 for all sizes (20,000 BTUH/Max-Heat/8,000 BTUH Min-Heat
per burner) except 60,000 BTUH models in a 21-in. wide cabinet.
Table 7 for 60,000 BTUH models in a 21-in. wide cabinet. (20,200
BTUH Max-Heat/8,000 BTUH Min-Heat per burner)
1. For both tables, follow heat−value line and specific-gravity line to
point of intersection to find orifice size and manifold pressure
settings.
For all furnaces:
Furnace gas input rate on furnace rating plate is for installations at
altitudes up to 2000 ft. (610 M).
In the U.S.A.; the input rating for altitudes above 2000 ft. (610 M) must
be reduced by 2 percent for each 1000 ft. (305 M) above sea level.
In Canada, the input rating must be derated by 5 percent for altitudes of
2000 ft. to 4500 ft. (610 M to 1372 M) above sea level.
The Conversion Kit Rating Plate accounts for high altitude derate.
Orifice
Connect Green/Yellow
ground wire here
Manifold
Gas Valve
Gas valve must be installed on
manifold with minimum engagement of
6 threads. Cross threading is not
acceptable.
Indicated surfaces
to be 90 ˚+ or -2˚
C
L
Gas valve is parallel to manifold
or - 3˚
FLAME SENSOR
(BELOW BURNER)
FLAME ROLLOUT
SWITCH
BRACKET, IGNITER
IGNITER BURNER SUPT. ASSY
BURNER ASSY
CAUTION
!
UNIT DAMAGE HAZARD
Failure to follow this caution may result in unit damage.
DO NOT re-drill burner orifices. Improper drilling may result in burrs,
out-of-round holes, etc. Obtain new orifices if orifice size must be
changed, see Fig. 4 .
BURNER
ORIFICE
BURNER
ORIFICE