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SEPARATED COMBUSTION TUBULAR GAS-FIRED
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.
Unit No.
The use and storage of gasoline or other fl ammable vapors and liquids in open containers in
the vicinity of this appliance is hazardous.
can cause property damage, injury, or death. Read the installation, operating, and
maintenance instruction thoroughly before installing or servicing this equipment.
instructions to avoid exposure to fuel substances, or substances from incomplete
combustion, which can cause death or serious illness. The state of California
has determined that these substances may cause cancer, birth defects, or other
reproductive harm.
Installer Please Note: This equipment has been test fired and inspected. It has been
shipped free from defects from our factory. However, shipment and installation
problems such as loose wires, leaks, or loose fasteners may occur. It is the installer's
responsibility to inspect and correct any problem that may be found.
RECEIVING INSTRUCTIONS
Inspect shipment immediately when
received to determine if any damage
has occurred to the unit during
shipment. After the unit has been
uncrated, check for any visible
damage to the unit. If any damage
is found, the consignee should sign
the bill of lading indicating such
damage and immediately file claim
for damage with the transportation
company.
08/13
INSTALLATION INSTRUCTIONS AND PARTS IDENTIFICATION
BLOWER STYLE UNIT HEATER
If you smell gas:
1. Open windows.
2. Don't touch electrical switches.
3. Extinguish any open fl ame.
4. Immediately contact your gas supplier.
Improper installation, adjustment, alteration, service, or maintenance
APPROVED FOR USE IN CALIFORNIA
APPROVED FOR USE IN CALIFORNIA
Install, operate, and maintain unit in accordance with the manufacturer's
INSTALLER'S RESPONSIBILITY
Serial No.
FOR YOUR SAFETY
FOR YOUR SAFETY
260 NORTH ELM ST., WESTFIELD, MA 01085
TEL: (413) 568-9571
STBII-3
J30-09053
ENERGY
PERFORMANCE
CM
VERIFIED
RENDEMENT
ENERGETIQUE
VERIFIE
FAX: (413) 562-8437
www.mestek.com
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Table of Contents
Related Manuals for Mestek SEPARATED COMBUSTION TUBULAR GAS-FIREDBLOWER STYLE UNIT HEATER
Summary of Contents for Mestek SEPARATED COMBUSTION TUBULAR GAS-FIREDBLOWER STYLE UNIT HEATER
- Page 1 If any damage is found, the consignee should sign 260 NORTH ELM ST., WESTFIELD, MA 01085 the bill of lading indicating such TEL: (413) 568-9571 FAX: (413) 562-8437 damage and immediately file claim www.mestek.com for damage with the transportation company. 08/13...
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Page 2: Table Of Contents
TABLE OF CONTENTS SPECIFICATIONS BLOWER SET UP AND ADJUSTMENT… ....10 Description……………………………………….... 2 MOTOR AND PULLEY………………………....11 Performance & Dimensional Data……....... 4 ELECTRICAL CONNECTIONS……………...12-16 GENERAL SAFETY INFORMATION VENTING………………………………………… ..17-22 Installation Codes……………………………..... 2,3 OPERATION Special Precautions…………………………..... 2,3 Explanation of Controls……………………... -
Page 3: Installation Codes
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 unless using an appropriate gas conversion kit provided by the manufacturer. -
Page 4: Performance & Dimensional Data
Table 1 - Performance and Dimensional Data - Separated Combustion Tubular Blower Unit Heater Unit Capacity (MBH) 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) (44.0) (51.3) (58.6) (73.3) (87.9) (102.6) (117.2) Output - BTU/Hr. -
Page 5: Installation
INSTALLATION Figure 2 - Dimensional Drawing – Separated Combustion Tubular Blower Unit Heater 32 1/2 1 1/8 (826mm) (29mm) Flue (838mm) 24 1/2 (622mm) (Discharge Opening) Electrical Control Panel Gas Valve (Discharge Opening) Rear View Side View Front View D9050B PUBLIC GARAGES: In repair garages, unit heaters must Do not install unit heaters in corrosive or fl... -
Page 6: Heat Throw Data
INSTALLATION (continued) Table 2 - Heat Throw Data Standard Heater 30° Nozzle 60° Nozzle 90° Nozzle Distance From UNIT SIZE BTU/Hr Degree Floor to Bottom 100,000 125,000 150,000 175,000 200,000 250,000 300,000 350,000 400,000 of Unit "H" - ft Nozzle Approximate Distance of Heat Throw - Feet (Meters) None (2.4) -
Page 7: Clearances
INSTALLATION (continued) CLEARANCES: Each Gas Unit Heater shall be Figure 3A - Heater Mounting* 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"... -
Page 8: Gas Piping
INSTALLATION (continued) 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. -
Page 9: Pipe Installation
INSTALLATION (continued) PIPE INSTALLATION Figure 4 - Pipe Installation, Standard Controls 1. Install the gas piping in accordance with applicable 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. -
Page 10: Blower Set Up And Adjustment
BLOWER SET UP AND ADJUSTMENT BLOWER SET UP BLOWER DRIVE ADJUSTMENT The drive ratio of the motor and blower sheaves has been preset at the factory for a temperature rise of 65°F Never attempt to adjust the drive at .2" W.C. If the unit is to be operated under different belt without fi... -
Page 11: Motor And Pulley
MOTOR AND PULLEY All motor data based on standard ODP Motors. Table 5 Motor Full Load Amps* VOLTAGE - PHASE 115-1 208-1 230-1 208-3 230-3 460-3 575-3 11.6 13.0 1-1/2 18.2 21.0 11.3 10.5 * Average value, all speeds and frequencies. Table 6 Pulley Table 1725 RPM Motors (1/3 to 2 H.P.) MOTOR PULLEYS... -
Page 12: Electrical Connections
ELECTRICAL CONNECTIONS Figure 6a - Low-voltage Thermostat Wiring HAZARDOUS VOLTAGE! Single Stage DISCONNECT ALL ELECTRIC POWER INCLUDING REMOTE DISCONNECTS BEFORE Figure 6b - 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, Figure 6c - single phase electric power. - Page 13 ELECTRICAL CONNECTIONS (continued) Figure 6d - Separated Combustion Tubular Blower Units 100-150 with Single Stage Ignition, Natural Gas and Propane (LP) Gas...
- Page 14 ELECTRICAL CONNECTIONS (continued) Figure 6e - Separated Combustion Tubular Blower Units 100-150 with Two Stage Ignition, Natural Gas and Propane (LP) Gas...
- Page 15 ELECTRICAL CONNECTIONS (continued) Figure 6f - Separated Combustion Tubular Blower Units 175-400 with Single Stage Ignition, Natural Gas and Propane (LP) Gas...
- Page 16 ELECTRICAL CONNECTIONS (continued) Figure 6g - Separated Combustion Tubular Blower Units 175-400 with Two Stage Ignition, Natural Gas and Propane (LP) Gas...
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Page 17: Venting
VENTING ANSI now organizes vented Category I Category IV appliances into four categories. Includes non-condensing Covers condensing appliances with positive vent pressure. appliances with negative vent Venting Categories pressure, like the traditional NOTICE: Category II and IV do atmospheric unit heater. not apply to equipment specifi... - Page 18 VENTING (continued) HORIZONTALLY VENTED UNIT HEATERS (CATEGORY III) Horizontal venting arrangements are designed to be The vent terminal must be at least 12" (305mm) from used with single wall vent pipe. Horizontal venting the exterior of the wall that it passes through to prevent arrangements must terminate external to the building degradation of the building material by fl...
- Page 19 VENTING (continued) NOTICE: Combustion and exhaust venting instructions below describe two-pipe venting. If venting concentrically, a Combustion Air Inlet Kit is required and instructions included in the kit should be followed. COMBUSTION AIR VENTING AND PIPING 7. The equivalent length of the combustion air system must not be less than 5' (1.5m) and must not exceed Never operate unit heaters 50' (15.2m).
- Page 20 VENTING (continued) Figure 7A - Vertical Intake/Vent Installation 5. Any run of single wall vent pipe passing through an unheated space must be insulated with an insulation suitable to 550°F. 6. The vent system must be installed to prevent col- lection of condensate.
- Page 21 Figure 7B - Vertical Arrangement - Single Wall Vent System to Single Wall Termination CAT-3619C Figure 8A - Horizontal Intake/Vent Locations CAT-2765C Figure 8B - Horizontal Arrangement - Single Wall Vent System to Single Wall Termination CAT-3620F...
- Page 22 Figure 9A - Vertical Arrangement - Single Wall Vent System to Double Wall Termination CAT-3662D Figure 9B - Horizontal Arrangement - Single Wall Vent System to Double Wall Termination CAT-3661F 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.
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Page 23: Operation
OPERATION SEPARATED COMBUSTION BLOWER UNITS DIRECT SPARK IGNITION EXPLANATION OF CONTROLS: 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... -
Page 24: Gas Input Rate
OPERATION 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 Safety Information section for metric conversions). - Page 25 OPERATION (continued) TUBULAR UNIT HEATER HIGH ALTITUDE DERATION are made in the fi eld, attach label #J17-06459 to the unit, This Tubular Unit Heater has been manufactured utilizing standard burner orifi ces and a normal manifold pressure and record adjusted manifold pressure, altitude of the setting as per the specifi...
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Page 26: Troubleshooting Guides
Table 9 - Separated Combustion Tubular Blower 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 "Gas Input Rate." B. - Page 27 Table 9 - Separated Combustion Tubular Blower Troubleshooting Guide (continued) SYMPTOMS POSSIBLE CAUSE(S) CORRECTIVE ACTION H. Condensation. 1. Improper venting. 1. Refer to "Installation." 2. Unit under fi red. 2. Check gas supply pressures to unit. Refer to "Installation." 3. Building/space too cold. 3.
- Page 28 Table 9 - Separated Combustion Tubular Blower Troubleshooting Guide (continued) SYMPTOMS POSSIBLE CAUSE(S) CORRECTIVE ACTION N. Not enough heat. 1. Incorrect gas input. 1. Refer to "Gas Input Rate" 2. Heater undersized. 2. Is the heater output sized correctly for the heat loss of the space? Has the space been enlarged? Is the heater located in the space properly (see "Installation")?
- Page 29 Table 9 - Separated Combustion Tubular Blower Troubleshooting Guide (continued) SYMPTOMS POSSIBLE CAUSE(S) CORRECTIVE ACTION S. Power ventor will not run. 1. No power supply to unit. 1. Turn on power supply, check fuses and replace if bad. 2. Thermostat not calling. 2.
- Page 30 Table 9A - Separated Combustion Tubular Blower Troubleshooting with LED Indicator Assistance No Cycling or appliance power or thermostat call for heat 2. Remove the appliance burner compartment door. Do since appliance failure has occured. not interrupt power to the control board by opening any electrically interlocked panels.
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Page 31: Maintenance
MAINTENANCE PERIODIC SERVICE 2. Turn off the manual gas valve and electrical power to NOTICE: The heater and vent system should be the unit heater. checked once a year by a qualifi ed technician. 3. To clean or replace the burners, remove burner cover. -
Page 32: Limited Warranty
LIMITED WARRANTY Separated Combustion Tubular Blower Unit Heaters 1. The "Manufacturer" warrants to the original owner at original installation site that the above model Gas-Fired Heater ("the Product") will be free from defects in material or workmanship for (1) year from the date of shipment from the factory, or one and one-half (1-1/2) years from the date of manufacture, whichever occurs fi... -
Page 33: Identification Of Parts
IDENTIFICATION OF PARTS SEPARATED COMBUSTION BLOWER UNIT HEATERS Figure 11 - Blower Parts Figure 12 - Component Parts Hanger Locations Flue Power Vent Assembly Motor Belt Guard Blower Electrical Control Flame Sensor Panel Assembly Manifold Burner Assembly Bracket Assembly Ignitor Burner Cover Panel Hinge Sight Glass... - Page 34 (continued) IDENTIFICATION OF PARTS Figure 16 - Power Venter Assembly Figure 15 - Power Venter Assembly (100/250 Unit Sizes Shown) (300/400 Unit Sizes Shown) D4798 D4780 Figure 17 - Turbulator/High Limit Location Power Venter Ass'y Vestibule Panel/ Tube Ass'y Flue Collector Turbulator D8926 D8926...
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Page 35: Unit Number Description
SEPARATED COMBUSTION TUBULAR BLOWER UNIT NUMBER DESCRIPTION DIGIT – 10 11 12 13 14 ITEM PREFIX FT FM GT AL GC SV MT MS (Internal Use Only) Digit #1, 2 - Unit Type [UT] Digit #12 - Motor Type [MT] SC - Separated Combustion Tubular Blower 1 - Open Drip Proof (Standard) 2 - Totally Enclosed... - Page 36 External static pressure _________ in. W.C. ❐ Cycle by thermostat or operating control. ❐ Combustion Reading: Carbon Monoxide:____ PPM Carbon Dioxide:____ % _____________________________________________ Remarks: __________________________________________________ __________________________________________________ 260 NORTH ELM ST., WESTFIELD, MA 01085 TEL: (413) 568-9571 FAX: (413) 562-8437 www.mestek.com...
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