Carrier CPLPCONV006A00 installation instructions Kit Contents

5.Disconnect yellow flame sensor wire from the ignition con- trol.

6.Remove the screw securing the brown wire from the burner assembly and the green wire from the induced-draft motor at the sheet metal partition. Save screw.

7.Disconnect the gray and brown wires from the gas valve, and remove blue wires from the rollout switch.

→	Table 1–Kit Contents
	ITEM	QUANTITY
	LP Gas Orifice No. 41*	3
	LP Gas Orifice No. 42*	3
	LP Gas Orifice No. 46*	3
	Warning Label	1
	Conversion Label	1
	Responsibility Label	1

*Refer to Table 2 to determine the correct orifice to use. LP- Liquid Propane

→8. Remove the screw attaching the gas manifold to the basepan, and slide out the entire burner rack assembly from unit. Save screw.

→9. Inspect the inlet of the heat exchanger tubes for presence of V-shaped NOx baffles (see Fig. 1.) If baffles are present they must be removed prior to converting unit for LP gas. Slide the baffles out of the tubes (on some models a retaining clip must be released). IMPORTANT: If it is expected that this unit will be converted back to natural gas at a later time, these baffles should be retained for reuse. Otherwise the baffles may be discarded.

10.Using a 5/16 in. nut driver, remove the four screws securing the manifold/gas valve assembly to the burner assembly. Save these screws.

11.Remove the natural gas orifices from the manifold using a 9/16 in. wrench and install the correct LP gas orifices in the manifold (See Table 2 to select correct orifice size based on input. See Fig. 2 for orifice installation).

12.Replace the manifold/gas valve assembly into the burner assembly using the four screws saved from Step 10.

13.Reconnect the blue wires to the rollout switch and reinstall rollout switch.

14.Reconnect the gray wire removed in Step 7 to terminal 1 (M1) of the gas valve. Reconnect the brown wire to terminal 2 (C2) on the main gas valve.

15.Reconnect orange sparker cable and the yellow flame sensor wires at the ignition control.

16.Slide burner rack assembly into basepan. Align burner rack with screws on sheet metal partition and slide assembly back tight to the partition. Replace the screw attaching the burner rack to the basepan, removed in Step 8.

17.Reconnect the brown wire from the burner assembly and the green wire from the induced-draft motor to the sheet metal partition.

18.Remove the 1/8” pipe plug on the gas manifold and connect a pressure manometer.

19.Reconnect electrical power and gas supply to the unit.

20.Fire unit and verify proper ignition. Verify that the pressure manometer reads 3.5–in. ± 0.3–in. wc. If the pressure is outside this range, adjust the gas valve setting by removing the slotted brass fitting and turning the nylon adjustment screw. Replace brass fitting.

21.Turn off unit, remove pressure manometer and replace the 1/8–in. pipe fitting on the gas manifold.

22.Attach warning label (P/N 48GS500615) to visible side of gas valve.

23.Attach conversion label (P/N 48GS500614) above unit rating plate on exterior of unit.

24.Attach completed conversion responsibility label (see Fig. 3, P/N 48SS500283) inside service access panel.

25.IMPORTANT: Restart unit and leak check all gas connec- tions including the main service connection, gas valve, gas spuds, and manifold pipe plug.

26.After all leaks are eliminated, replace service panel.

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