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Installation, Gas pipe pressure testing, Gas connection – Regency Wraps U38-LP User Manual

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Regency U38 ULTIMATE Freestanding Gas Stove

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. Screw should be snug,
but do not over tighten.

S.I.T. Valve Description

1) Gas cock knob

2) Manual high/low adjustment

3) Pilot Adjustment

4) Thermocouple Connection

5) Main Operator

6) Outlet Pressure Tap

7) Inlet Pressure Tap

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

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 pres-

sures over 1/2 psig (14" w.c.).

The manifold pressure is controlled by a regu-

lator 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" (# 7) and/or "OUT" (# 6)

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.

INSTALLATION

U38-NG: For 0 to 2000 feet altitude
U38-LP: For 0 to 4500 feet alttitude

Burner Inlet Orifice Sizes:

Natural Gas Propane
Burner

#31

#50

Max. Input

Natural Gas

40,000 Btu/h

Propane

38,000 Btu/h

Min. Input

Natural Gas

22,000 Btu/h

Propane

20,000 Btu/h

Supply Pressure

Natural Gas

min. 5" w.c.

Propane

min. 12" w.c.

Manifold Pressure

Natural Gas

3.8"

+/- 0.2" w.c.

Propane

11"

+/- 0.2" w.c.

Electrical: 120 V. 1.13A 60Hz.
Circulation: Variable speed fan, 125/75 CFM.
Log Set: Ceramic fiber, 7 per set.

System Data:

HIGH ELEVATION - U38-NG

For 2,000 - 4,500 feet altitude

Burner Inlet Orifice Sizes:

Natural Gas

Burner

#33

Max. Input Rating 36,000 Btu/h
Min. Input Rating 19,000 Btu/h

System Data

U38 with 40,000 BTU

GAS CONNECTION

The gas line can be rigid pipe, or to make
installation easier, use a listed flexible connec-
tor if allowed by local codes. Copper may also
be used if approved by local codes.

The gas connection at the valve is 3/8" NPT. For
minimum and maximum supply pressure see
the System Data Table.

System Data

U38 Converted to 30,000 Btu

For 0 to 4500 feet altitude

Burner Inlet Orifice Sizes:

Natural Gas

Propane

Burner

#37

#52

Max. Input

Natural Gas

30,000 Btu/h

Propane

30,000 Btu/h

Min. Input

Natural Gas

15,000 Btu/h

Propane

15,000 Btu/h

Supply Pressure

Natural Gas

min. 5" w.c.

Propane

min. 12" w.c.

Manifold Pressure
Natural Gas

3.8" +/- 0.2" w.c.

Propane

11" +/- 0.2" w.c.

Electrical: 120 V. 1.13A 60Hz.
Circulation: Variable speed fan, 125/75 CFM.
Log Set: Ceramic fiber, 7 per set.

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