Regency U39-NG Conversion to Lower BTU Rating, GAS Pipe Pressure Testing, Valve Description

INSTALLATION

CONVERSION TO LOWER BTU RATING

THIS CONVERSION MUST BE DONE BY A QUALIFIED GAS FITTER IF IN DOUBT DO NOT DO THIS CONVERSION !!

kPa). Disconnect piping from valve at pres- sures over 1/2 psig.

The manifold pressure is controlled by a regu- lator built into the gas control, and should be checked at the pressure test point.

Natural Gas Conversion Kit 730-920 Contains:

Qty. Part # Description

1904-240 Burner Orifice #37 (Natural Gas)

1918-034 Decal "Converted to 30,000 Btu"

1918-033 Instruction Sheet

Propane Conversion Kit 730-922 Contains:

Qty. Part # Description

1 904-390 Burner Orifice #52 (Propane)

1918-034 Decal "Converted to 30,000 Btu"

1918-033 Instruction Sheet

Additional Piece (pkg. with unit:

1 Log Bracket Restrictor

1)Shut off the gas supply.

2)Open the front door. Carefully remove the logs and lava rock.

3)Remove burner. See diagram below.

6)Remove burner orifice with a 1/2" wrench and discard.

Burner Orifice

7)Reinstall new burner orifice (NG stamped #37 or LP stamped #52) and tighten.

8)Reverse steps 3) and 2).

9)Adjust Vent restrictor setting: To set the Vent restriction as indicated in the diagram, simply loosen the screws and push the vent restrictor plate to the correct position. Tight- en the screws.

Unit	Btu/h	Restrictor Opening
U39	38,000	A	1-3/4" (44mm)
	30,000	B	1-1/4" (32mm)

Note: To properly check gas pressure, both inlet and manifold pressures should be checked using the valve pressure ports on the valve.

1)Make sure the valve is in the "OFF" position.

2)Loosen the "IN" and/or "OUT" pressure tap(s), turning counterclockwise with a 1/ 8" wide flat screwdriver.

3)Attach manometer to "IN" and/or "OUT" pressure tap(s) using a 5/16" ID hose.

4)Light the pilot and turn the valve to "ON" position. Read manometer.

5)The pressure check should be carried out with the unit burning and the setting should be within the limits specified on the safety label.

6)When finished reading manometer, turn off the gas valve, disconnect the hose and tighten the screw (clockwise) with a 1/8" flat screwdriver. Note: Screw should be snug, but do not over tighten

Valve Description

Note: Use a magnetic type screwdriver if possible.

4)Unscrew the 2 Rear Log Pins and move to the front hole po- sition.

5)Remove Rear Log Bracketandslidethe Log Bracket Re- strictor between the

Rear Log Bracket and the burner, secure with the 2 screws.

Position the Log Bracket Restrictor between

the Rear Log Bracket and the burner.

Vent Restrictor	Vent Restrictor
setting at High Btu/h	setting at Low Btu/h

10)Attach the label "This unit has been con- verted to..." on top of the Serial # decal over the higher Btu information.

11)Check for gas leaks.

12)Check inlet and outlet pressures.

13)Check operation of flame control. Check for proper flame appearance and glow on logs.

GAS PIPE PRESSURE

TESTING

The appliance must be isolated from the gas supply piping system by closing its individual manual shut-off valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psig. (3.45

1)Gas cock knob

2)Manual high/low adjustment

3)Pilot Adjustment

4)Thermocouple Connection

5)Main Operator

6)Outlet Pressure Tap (Manifold Pressure)

7)Inlet Pressure Tap (Supply Pressure)

8)Pilot Outlet

9)Main Gas Outlet

10)Flange Securing Screw Holes

11)Alternative TC Connection Point

12)Thermoelectric Unit

13)Additional Valve Mounting Hole

Regency U39 ULTIMATE Direct Vent Freestanding Gas Stove 23