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(S) DSTBIM-3
J30-06935
INSTALLATION INSTRUCTIONS AND PARTS LIST
TUBULAR GAS FIRED DIRECT SPARK PROPELLER UNIT HEATERS
ATTENTION: READ THIS MANUAL AND ALL LABELS ATTACHED TO THE UNIT CAREFULLY BEFORE
ATTEMPTING TO INSTALL, OPERATE OR SERVICE THESE UNITS! CHECK UNIT DATA PLATE FOR TYPE OF GAS
AND ELECTRICAL SPECIFICATIONS AND MAKE CERTAIN THAT THESE AGREE WITH THOSE AT THE POINT OF
INSTALLATION. RECORD THE UNIT MODEL AND SERIAL No.(s) IN THE SPACE PROVIDED. RETAIN FOR FUTURE
REFERENCE.
Model N
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TABLE OF CONTENTS SPECIFICATIONS VENTING ...........................................12, 13, 14, 15, 16 Basic Description ....................................................2 OPERATION Performance & Specifi cation Data ..........................4 Explanation of Controls and Operation ..................17 GENERAL SAFETY INFORMATION Main Burner Orifi ce Schedule ...............................18 Installation Codes ...............................................2, 3 Adjustments ..........
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GENERAL SAFETY INFORMATION Failure to comply with the general Do not attempt to convert the safety information may result in extensive heater for use with a fuel other than the one property damage, severe personal injury, or intended. Such conversion is dangerous, as it will create the risks previously listed. death. Make certain that the power source conforms to the This product must be installed by electrical requirements of the heater. a licensed plumber or gas fi tter when installed
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Table 1 - Performance and Dimensional Data - Tubular Propeller Unit Heater Unit Size 100 125 150 175 200 250 300 350 400 PERFORMANCE DATA† Input - BTU/Hr. 100,000 125,000 150,000 175,000 200,000 250,000 300,000 350,000 400,000 (kW) (29.3) (36.6) (43.9) (51.2) (58.6) (73.2) (87.8) (102.5) (117.1) Output - BTU/Hr. 81,000 101,250 121,500 141,750 162,000 202,500 243,000 283,500 324,000 (kW) (23.7) (29.6) (35.6) (41.5) (47.5) (59.3) (71.2) (83.0) (95.0) The
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INSTALLATION Do not install unit heaters in In Canada, installation must be in accordance to the corrosive or fl ammable atmospheres! Premature latest edition of CGA B149 “Installation Codes for Gas failure of, or severe damage to the unit will Burning Appliances and Equipment.” result! AIR DISTRIBUTION: Direct air towards areas of Avoid locations where extreme maximum heat loss. When multiple heaters are involved, drafts can affect burner operation. Unit heaters circulation of air around
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INSTALLATION (continued) CLEARANCES: Each Gas Unit Heater shall be Figure 3A located with respect to building construction and other equipment so as to permit access to the Unit Heater. Clearance between vertical walls and the vertical sides of the Unit Heater shall be no less than 6 inches (152mm). However, to ensure access to the control box, a minimum of 18" (457mm) is required for the control box side. A minimum clearance of 6 inches (152mm) must be maintained between the top of the U
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GAS PIPING To avoid damage or possible personal injury, do not connect gas piping to this unit until a supply line pressure/leak test has been completed. Connecting the unit before completing the pressure/leak test may damage the unit gas valve and result in a fi re hazard. Do not rely on a shut-off valve to isolate the unit while conducting gas pressure/leak tests. These valves may not be completely shut off, exposing the gas valve to excessive pressure and damage. PIPE SIZING NOTICE: If m
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PIPE INSTALLATION 1. Install the gas piping in accordance with applicable Figure 4 - Pipe Installation, Standard Controls local codes. 2. Check gas supply pressure. Each unit heater must be connected to a manifold pressure and a gas supply capable of supplying its full rated capacity as specified in Table 4. A field LP tank regulator must be used to limit the supply pressure to a maximum of 14 in. W.C. (3.5 kPa). All piping should be sized in accordance with the latest edition of ANSI Sta
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ELECTRICAL CONNECTIONS Figure 5a - Low-voltage T Thermostat Wiring HAZARDOUS VOLTAGE! Single Stage DISCONNECT ALL ELECTRIC POWER INCLUDING REMOTE DISCONNECTS BEFORE Figure 5b - SERVICING. Failure to Low-voltage disconnect power before Thermostat Wiring servicing can cause severe Two Stage personal injury or death. Standard units are shipped for use on 115 volt, 60 hertz, single phase electric power. The motor name-plate and Honeywell Figure 5c - T834H-1009 electrical rating of the
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ELECTRICAL CONNECTIONS (continued) Figure 5d - Tubular Units Equipped with Natural Gas and Propane (LP) Gas 10
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ELECTRICAL CONNECTIONS (continued) Figure 5e - Tubular Unit Sizes with Optional 2 Stage Ignition 11
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VENTING ANSI now organizes vented Category I Category IV appliances into four categories. Includes non-condensing Covers condensing appliances with appliances with negative vent positive vent pressure. Venting Categories pressure, like the traditional NOTICE: Category II and IV do atmospheric unit heater. Non not apply to equipment specifi ed Condensing Condensing Category II within this manual. Negative Groups condensing appliances Vent I II with negative vent pressure. Pressur
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HORIZONTALLY VENTED UNIT HEATERS (CATEGORY III) Horizontal venting arrangements are designed to be The vent terminal must be at least 12 inches (305mm) used with single wall vent pipe. Horizontal venting from the exterior of the wall that it passes through to arrangements must terminate external to the building prevent degradation of the building material by flue using either single wall or double wall (Type B) vent. If gases. single wall vent pipe is used, it must be constructed of 26 gaug
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VENTING (continued) Figure 6 - Vertically Vented Tubular Unit Heater – Category I Figure 7 - Horizontally Vented Tubular Unit Heater – Category III ADDITIONAL REQUIREMENT FOR CANADIAN INSTALLATIONS REFER TO SPECIFICATION TABLE AND INSTALLATION MANUAL FOR PROPER USAGE. * The following instructions apply to Canadian installations in addition to installation and operating instructions. 1. Installation must conform with local building codes, or in the absence of local codes, with current CGA B149.1,
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VENTING (continued) Figure 8A Figure 8B 15
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VENTING (continued) Figure 9A Figure 9B 16
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OPERATION POWER VENTED PROPELLER UNITS DIRECT SPARK IGNITION EXPLANATION OF CONTROLS (See Figure 10): 7. The wall thermostat, supplied optionally, is a 1. The unit heater is equipped with a power vent system temperature sensitive switch that operates the vent that consists of a power venter motor and blower, and ignition system to control the temperature of pressure switch, and sealed fl ue collector in place of the space being heated. The thermostat must be the conventional draft diverte
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PRIMARY AIR SHUTTER ADJUSTMENT Primary air adjustment is made at the factory. No fi eld adjustments are necessary. GAS INPUT RATE Check the gas input rate as follows (Refer to General 2. PROPANE GAS: An exact manifold pressure of 10.0 Safety Information section for metric conversions). inches W.C. (2.5 kPa) must be maintained for proper operation of the unit heater. If the unit is equipped Never overfi re the unit heater, as this with a pressure regulator on the combination gas may cause unsa
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Table 5A TUBULAR UNIT HEATER NATURAL GAS PROPANE (LP) GAS HIGH ALTITUDE DERATION This Tubular Unit Heater has been manufactured utilizing Heating* Manifold Heating* Manifold standard burner orifi ces and a normal manifold pressure Altitude Value Pressure Value Pressure (Feet) BTU/Cu. ft. (In. W.C.) BTU/Cu. ft. (In. W.C.) setting as per the specifi cations shown on your unit rating plate. 2,000 948 3.5 2,278 8.6 2,500 931 3.5 2,237 8.5 All unit deration must be done through fi eld adjustmen
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Table 6 - Tubular Propeller Troubleshooting Guide SYMPTOMS POSSIBLE CAUSE(S) CORRECTIVE ACTION A. Flame pops back. 1. Burner orifi ce too small. 1. Check with local gas supplier for proper orifi ce size and replace. Refer to “Operation”. B. Noisy Flame. 1. Irregular orifi ce causing whistle or resonance. 1. Replace orifi ce. 2. Excessive gas input. 2. Test and reset manifold pressure. C. Yellow tip fl ame (some yellow 1. Clogged main burners. 1. Clean main burner ports. tipping on LP gas is pe
