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TUBULAR GAS-FIRED BLOWER STYLE UNIT HEATER
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
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
TBII-3
J30-08867
ENERGY
PERFORMANCE
CM
VERIFIED
RENDEMENT
ENERGETIQUE
VERIFIE
FAX: (413) 562-8437
www.mestek.com
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Summary of Contents for Mestek TUBULAR GAS-FIRED BLOWER STYLE UNIT HEATER
- Page 1 J30-08867 INSTALLATION INSTRUCTIONS AND PARTS IDENTIFICATION TUBULAR GAS-FIRED BLOWER STYLE UNIT HEATER 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.
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Page 2: Table Of Contents
TABLE OF CONTENTS DESCRIPTION………………........2 MOTOR AND PULLEY ..........11 GENERAL SAFETY INFORMATION ELECTRICAL CONNECTIONS…………………..12-16 Installation Codes………………………………… 2, 3 VENTING ..............17-21 Special Precautions………………………………. 2, 3 OPERATION PERFORMANCE AND DIMENSIONAL DATA ....4 Explanation of Controls…………………………… . 22 INSTALLATION Start-Up, Shut Down………………..…………..22 Locating Units…………………………………………... -
Page 3: General Safety Information
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. -
Page 4: Performance And Dimensional Data
Table 1 - Performance and Dimensional Data - Tubular Blower Unit Heater Unit Size 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. 83,000 103,750 124,500... -
Page 5: Installation
INSTALLATION Figure 2 - Dimensional Drawing – Tubular Blower Unit Heater 1 1/8 32 1/2 Flue (Discharge Opening) Gas Valve Electrical Control Panel (Discharge Opening) Front View D8931B Rear View Side View D8931B Do not install unit heaters in PUBLIC GARAGES: In repair garages, unit heaters must 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) AIR FOR COMBUSTION: The unit heater shall be Unit Heaters must be hung level installed in a location in which the facilities for from side to side and from front to back, see Figure ventilation permit satisfactory combustion of gas, 3A and 3B. -
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 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 specifi... -
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 D4788 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, D8541 Figure 6c -... - Page 13 ELECTRICAL CONNECTIONS (continued) Figure 6d - Tubular Blower Units 100-150 with Single Stage Ignition, Natural Gas and Propane (LP) Gas...
- Page 14 ELECTRICAL CONNECTIONS (continued) Figure 6e - Tubular Blower Units 100-150 with Two Stage Ignition, Natural Gas and Propane (LP) Gas...
- Page 15 ELECTRICAL CONNECTIONS (continued) Figure 6f - Tubular Blower Units 175-400 with Single Stage Ignition, Natural Gas and Propane (LP) Gas...
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Page 16: Electrical Connections
ELECTRICAL CONNECTIONS (continued) Figure 6g - Tubular Blower Units 175-400 with Two Stage Ignition, Natural Gas and Propane (LP) Gas... -
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 used The vent terminal must be at least 12" (305mm) from with single wall vent pipe. Horizontal venting arrangements the exterior of the wall that it passes through to prevent must terminate external to the building using UL 1738 degradation of the building material by fl...
- Page 19 VENTING (continued) Figure 7 - Vertically Vented Tubular Unit Heater – Category I D8929 Figure 8 - Horizontally Vented Tubular Unit Heater – Category III D8930 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.
- Page 20 VENTING (continued) Figure 9A D3620F Figure 9B D3619C...
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Page 21: Venting
VENTING (continued) Figure 10A D3661F Figure 10B D3662D... -
Page 22: Operation
OPERATION POWER VENTED 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 23: Main Burner Orifi Ce Schedule
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 24 OPERATION (continued) TUBULAR UNIT HEATER HIGH ALTITUDE DERATION This Tubular Unit Heater has been manufactured utilizing are made in the fi eld, attach label #J17-06459 to the unit, 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 25: Troubleshooting Guide
Table 9 - 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 26 Table 9 - 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 27 Table 9 - 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")? 3.
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Page 28: Troubleshooting Guide
Table 9 - 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 29: Led Indicator Troubleshooting
Table 9A - Tubular Blower Troubleshooting with LED Indicator Assistance LED STATUS INDICATES CHECK/REPAIR No Cycling or appliance power or thermostat call for heat Slow Flash Control OK, no call for heat. Not Applicable since appliance failure has Fast Flash Control OK, call for heat present. -
Page 30: Maintenance
MAINTENANCE PERIODIC SERVICE NOTICE: The heater and vent system should be 2. Turn off the manual gas valve and electrical power to checked once a year by a qualifi ed technician. the unit heater. 3. To clean or replace the burners, remove burner All Maintenance/Service information should be recorded cover. -
Page 31: Warranty
LIMITED WARRANTY Power Vented 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 32: Identification Of Parts
IDENTIFICATION OF PARTS BLOWER UNIT HEATERS Figure 12 - Blower Parts Figure 13 - Component Parts Hanger Locations Flue Power Vent Assembly Belt Guard Motor Blower Baffle (Secondary) Electrical Control Panel Assembly Flame Sensor Manifold Burner Assembly Vestibule Panel/ Tube Assembly Burner Cover Ignitor Gas Valve... - Page 33 (continued) IDENTIFICATION OF PARTS Figure 17 - Power Venter Assembly Figure 16 - Power Venter Assembly (100/250 Unit Sizes Shown) (300/400 Unit Sizes Shown) D4798 D4780 Figure 18 - Turbulator/High Limit Location Power Venter Ass'y Vestibule Panel/ Tube Ass'y Flue Collector Turbulator D8926 High Limit Ass'y...
- Page 34 NOTES:...
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Page 35: Unit Number Description
TUBULAR BLOWER UNIT NUMBER DESCRIPTION Digit X X X X — 1 9 10 11 12 13 14 + Item Prefi x FT FM GT AL GC SV MT MS (Internal use Only) Digit #1, 2 - Unit Type [UT] Digit #12 - Motor Type [MT] TC - Tubular Blower 1 - Open Drip Proof (Standard) -
Page 36: Start-Up Inspection Sheet
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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