Conversion To Lower Btu Rating; Gas Pipe Pressure Testing - Regency ULTIMATE U39 Owners & Installation Manual

CONVERSION TO LOWER BTU RATING

THIS CONVERSION MUST BE DONE BY A QUALIFIED GAS
FITTER IF IN DOUBT DO NOT DO THIS CONVERSION !!
Natural Gas Conversion Kit 730-920
Contains:
Qty. Part # Description
1 904-240 Burner Orifice #37 (Natural Gas)
1 918-034 Decal "Converted to 30,000 Btu"
1 918-033 Instruction Sheet
Propane Conversion Kit 730-922
Contains:
Qty. Part # Description
1 904-390 Burner Orifice #52 (Propane)
1 918-034 Decal "Converted to 30,000 Btu"
1 918-033 Instruction Sheet
Additional Piece (pkg. with unit):
1 Log Bracket Restrictor
1. Shut off the gas and electrical supply.
2. Remove the safety screen - open the front
door. Carefully remove the logs and lava
rock.
3. Remove burner. See diagram below.
Note: Use a
magnetic type
screwdriver if
possible.
4. Unscrew the 2 Rear
Log Pins and move
to the front hole
position.
5. Remove Rear Log
Bracket and slide
the Log Bracket
Restrictor 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.
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. Tighten
the screws.
Unit Btu/h Restrictor Opening
U39 38,000 A 1-3/4" (44mm)
30,000 B 1-1/4" (32mm)
Vent Restrictor set- Vent Restrictor set-
ting at High Btu/h ting at Low Btu/h
10. Attach the label "This unit has been
converted 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.
Regency U39-10 ULTIMATE Direct Vent Freestanding Gas Stove
®
installation
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
kPa). Disconnect piping from valve at pressures
over 1/2 psig.
The manifold pressure is controlled by a regulator
built into the gas control, and should be checked
at the pressure test point.
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
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