Carrier KGBPN42011SP, Installation Instructions Manual

12

NOx DEVICE INSTALLATION (when

required)

The following models must have NOx baffles installed (58PHX,

58PHY, 58DLX, 58STX, 313JAV, 313JBV, 311JAV, 310JAV,

PG8JEA, PG8JEB, and PG8JAA). NOx baffles are not included

in this kit and must be ordered separately or reused if retained

from original conversion to Propane.
For NOx device installation, follow these additional steps:

Figure 16

Representative Furnace Drawing

A03069

Representative drawing only, some models may vary in appearance.

9. Use a pair of needle nose pliers to install the NOx device.

10. Squeeze the sides of the device, if necessary, to install in

the heat exchanger.

11. Re-install screw in hole underneath heat exchanger inlet.

It is very IMPORTANT to reinstall the NOx bracket mounting
screw. (See 

Figure 17

)

12. Repeat steps for each heat exchanger.

Figure 17

NOx Device Installation

A02195

ORIFICE SELECTION/DERATE

!

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 

Figure 18

)

Figure 18

Burner Orifice

BURNER 
ORIFICE

BURNER 
ORIFICE

A96249

Determine natural gas orifice size and manifold pressure for

correct input at installed altitude by using  

Table 5

 or 

Table 6

.

All models in all positions except Low NOx models in downflow
and horizontal positions use 

Table 5

 (22,000 Btuh per burner).

Low NOx models in downflow or horizontal positions must use

Table 6

 (21,000 Btuh per burner). See input listed on rating plate.

Use Table 5 (22,000 Btuh per burner) for models 58DLA, 58PHA,

58PHB, 58STA, 310AAV, 311AAV, 313AAV, 313ABV, PG8MAA,

and PG8MEA.
Use Table 6 (21,000 Btuh per burner) for Low NOx models

58DLX, 58PHX, 58PHY, 58STX, 310JAV, 311JAV, 313JAV,

313JBV,  PG8JAA, PG8JEA, and PG8JEB.

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 5

 or 

Table 6

.

For Canada altitudes of 2000 to 4500 ft., use U.S.A. Altitudes of

2001 to 3000 ft. in 

Table 5

 or 

Table 6

.

4. Find closest natural gas heat value and specific gravity in

Table 5

 or 

Table 6

.

5. Follow heat

−

value line and specific

−

gravity line to point of

intersection to find orifice size and manifold pressure

setting.

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 4 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.

INSTALL ORIFICES

1. Install main burner orifices. DO NOT use Teflon tape.

Finger-tighten orifices at least one full turn to prevent

cross-threading, then tighten with wrench.

2. There are enough orifices in each kit for largest furnace.

Discard extra orifices.

DO NOT reinstall the manifold at this time.