Vermont Castings UVS27
Gas Specifications
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| Max. | Min. |
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| Input | Input |
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Model | Fuel | Gas Control | BTU/h | BTU/h | |
UVS27RN | Nat |
| Millivolt | 28,000 | 19,500 |
UVS27RP | Prop |
| Millivolt | 28,000 | 19,500 |
UVS27MN | Nat |
| Millivolt | 28,000 | 19,500 |
UVS27MP | Prop |
| Millivolt | 28,000 | 19,500 |
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Firebox weight / shipping | 110 lbs. |
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Gas Inlet and Manifold Pressures
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| Natural | LP (Propane) |
Inlet Minimum |
| 5.5” w.c. | 11” w.c. |
Inlet Maximum |
| 14” w.c. | 14” w.c. |
Manifold Pressure |
| 3.5” w.c. | 10” w.c. (MP) |
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| 11” w.c. (RP) |
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UVS27R & UVS27M Vent-Free
Certified to:
ANSI Z21.11.2a-2001
Unvented Heaters
The installation of your Vermont Castings stove must conform with local codes, or in the absence of local codes, with the National Fuel Gas Code ANSI
Z223.1 - latest edition. (EXCEPTION: Do not derate this appliance for altitude up to 4,500 feet (1,370m). Maintain the manifold pressure at 3.5” w.c. for Natural Gas and 11.0” w.c. for LP Gas.
This appliance may be installed in an aftermarket* manufactured (mobile) home, where not prohibited by state or local codes.
This appliance is to be used only with the type of gas specified on the rating plate which is attached to the rear panel. This appliance is not convertible for use with other gases.
*Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer.
High Elevations
Input ratings are shown in BTU per hour and are certified without deration from elevations up to 4,500 feet (1,370m) above sea level.
Nuisance outages may occur at altitudes above 4,500 feet (1,370m) if dirt, dust, lint and/or cob- webs are allowed to accumulate on burner and/or ODS pilot. Monthly inspection and cleaning is recommended for altitudes above 4,500 feet (1,370m)
For elevations above 4,500 feet (1,370m), installa- tions must be in accordance with the current ANSI Z223.1 and/or local codes having jurisdic- tion.
WARNING: Improper installation, adjust- ment, alteration, service or maintenance can cause injury or property damage. Refer to this manual for correct installation and operational procedures. For assistance or additional information consult a qualified installer, service agency, or the gas supplier.
Odor During Operation
Neither natural gas nor propane gas give off an odor when burned. The nature of a vent free combustion system, however, is such that odors may occasion- ally be produced during heater operation when impurities exist in the immediate area. Cleaning solutions, paint, solvents, cigarette smoke, candles, adhesives, new carpet or textiles, etc., all can create fumes. These fumes may mix with combustion air and can create odor. Such odors will disappear over time, however the condition can be alleviated by opening a window or otherwise providing additional ventilation to the area.
6 | 20005004 |
