INSTALLATION
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 with 40,000 BTU
Burner Inlet Orifice Sizes: |
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| Natural Gas | Propane | |
Burner | #31 | #50 |
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Max. Input |
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Natural Gas | 40,000 Btu/h | ||
Propane | 38,000 Btu/h | ||
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Min. Input |
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Natural Gas | 22,000 Btu/h | ||
Propane | 20,000 Btu/h | ||
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Supply Pressure |
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Natural Gas | min. 5" w.c. | ||
Propane | min. 12" w.c. | ||
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Manifold Pressure |
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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 Converted to 30,000 Btu
For 0 to 4500 feet altitude
| Burner Inlet Orifice Sizes: |
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| Natural Gas | Propane | ||
| Burner | #37 | #52 |
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| Max. Input |
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| Natural Gas | 30,000 Btu/h | ||
| Propane | 30,000 Btu/h | ||
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| Min. Input |
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| Natural Gas | 15,000 Btu/h | ||
| Propane | 15,000 Btu/h | ||
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| Supply Pressure |
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| Natural Gas | min. 5" w.c. | ||
| Propane | min. 12" w.c. | ||
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| Manifold Pressure |
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| 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.
GAS PIPE PRESSURE
TESTING
The appliance must be isolated from the gas supply piping system by closing its individual manual
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.
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
8 | Regency U38 ULTIMATE Freestanding Gas Stove |