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POWER VENTED GAS FIRED BLOWER 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 POINT
OF INSTALLATION. RECORD THE UNIT MODEL AND SERIAL No.(s) IN THE SPACE PROVIDED. RETAIN FOR
FUTURE REFERENCE.
Model 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 instructions 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, during 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 problems 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 transpor tation
company.
08/12
INSTALLATION INSTRUCTIONS & PARTS LIST
If you smell gas:
1. Open windows.
2. Don't touch electrical switches.
3. Extinguish any open fl ame.
4. Immediately call your gas supplier.
Improper installation, adjustment, alteration, service or maintenance
APPROVED FOR USE IN CALIFORNIA
Install, operate and maintain unit in accordance with manufacturer's
Serial No.
FOR YOUR SAFETY
FOR YOUR SAFETY
INSTALLER'S RESPONSIBILITY
260 NORTH ELM ST., WESTFIELD, MA 01085
TEL: (413) 568-9571
IIEB-11
J30-05390
ENERGY
PERFORMANCE
CM
VERIFIED
RENDEMENT
ENERGETIQUE
VERIFIE
FAX: (413) 562-8437
www.mestek.com
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Summary of Contents for Mestek IIEB-11
- Page 1 IIEB-11 J30-05390 INSTALLATION INSTRUCTIONS & PARTS LIST POWER VENTED GAS FIRED BLOWER 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 POINT OF INSTALLATION.
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Page 2: Table Of Contents
TABLE OF CONTENTS SPECIFICATIONS ELECTRICAL CONNECTIONS ........ 11 Basic Description ............ 2 VENTING ..........12, 13, 14, 15 Performance & Specifi cation Data ......4 OPERATION GENERAL SAFETY INFORMATION Spark Ignition ..........16, 17 Installation Codes ..........2, 3 Main Burner Orifi ce Schedule ....... 18 Special Precautions .......... -
Page 3: General Safety Information
GENERAL SAFETY INFORMATION Failure to comply with the general Use only the fuel for which the heater is designed (see safety information may result in extensive rating plate). Using LP gas in a heater that requires property damage, severe personal injury or death. natural gas, or vice versa, will create the risk of gas leaks, carbon monoxide poisoning and explosion. -
Page 4: Unit Dimensions
Table 1 – Performance and Dimensional Data – Power Vented Blower Unit Heater Unit Size PERFORMANCE DATA ‡ Input BTU/Hr 100,000 125,000 150,000 175,000 200,000 225,000 250,000 300,000 350,000 400,000 (kW) (29.3) (36.6) (43.9) (51.2) (58.6) (65.9) (73.2) (87.8) (102.5) (117.1) Output BTU/Hr 80,000... - Page 5 INSTALLATION Do not install unit heaters in PUBLIC GARAGES: In repair garages, unit heaters corrosive or fl ammable atmospheres! Premature must be at least 8 feet (2.4m) above the fl oor. Refer to failure of, or severe damage to the unit will result! the latest edition of NFPA No.
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Page 6: Installation Codes
INSTALLATION (continued) The installation is to be adjusted to obtain an air Make certain that the lifting throughput within the range specifi ed on the rating plate. methods used to lift the unit heater and the structure to which the heater is to be mounted Unit heaters should not be installed to maintain low is capable of safely supporting its weight. -
Page 7: Gas Supply Piping/Sizing
INSTALLATION – GAS SUPPLY PIPING/SIZING To avoid equipment 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 shut off valve to isolate the unit while conducting gas pressure/leak tests. -
Page 8: Pipe Installation
PIPE INSTALLATION 1. Install the gas piping in accordance with applicable Check all pipe joints for leakage local codes. using a soap solution or other approved 2. Check gas supply pressure. Each unit heater method. Never use an open flame or severe must be connected to a manifold pressure and personal injury or death may occur. - Page 9 INSTALLATION (continued) 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 0 inch W.C. If the unit is to be operated under different belt without fi...
- Page 10 Table 5 - Motor Data STARTER H.P. VOLTAGE SHAFT FRAME SIZE 115/230 1725 — 208/230/460 1725 115/230 1725 — 208/230/460 1725 115/230 1725 — 208/230/460 1725 1-1/2 115/230 1725 — 208/230/460 1-1/2 1725 208/230/460 1725 0/00 208/230/460 1725 NOTES: 1. Motors are typically permanent lube, ball bearing drive with class “B” windings. 2.
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Page 11: Electrical Connections
ELECTRICAL CONNECTIONS * Thermostat wires tagged “W” and “G” must be connected together except when using a general purpose HAZARDOUS VOLTAGE! "SPDT" 24VAC relay and a standard thermostat with disconnect ALL ELECTRIC subbase, or when using Honeywell T834H-1009 or POWER INCLUDING REMOTE T834H-1017 thermostats. -
Page 12: Venting
VENTING FOR POWER VENTED (CATEGORY III) UNIT HEATERS All unit heaters must be vented! All venting The venting system for these appliances shall terminate installations shall be in accordance with the latest at least four feet (1.2m) below, four feet (1.2m) horizontal edition of Part 7, venting of Equipment of the National from, or one foot (0.3m) above any door, window, or Fuel Gas Code, ANSI Z223.1, or applicable provisions... -
Page 13: Figure
Use single wall pipe constructed of 26 gauge galvanized Insulate single wall vent pipe exposed to cold air or steel or material or equivalent durability and corrosion running through unheated areas. resistance for the vent system. For installation in Canada, vent pipe must conform with local building Each unit must have an individual vent pipe and codes, or in absence of local codes, with current CSA vent terminal per furnace section! Each unit MUST... - Page 14 Figure 13 Figure 14...
- Page 15 Figure 15 Figure 16...
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Page 16: Operation
OPERATION POWER VENTED BLOWER UNITS INTERMITTENT (SPARK) PILOT IGNITION EXPLANATION OF CONTROLS: 4. The wall thermostat (supplied optionally) is a 1. The unit heater is equipped with a dual automatic temperature sensitive switch which operates the gas valve and electric ignition device (separate from vent system and ignition system;... - Page 17 Figure 17 - Burner Components Intermittent Pilot Ignition BURNER DRAWER COMMON PARTS: 1. MAIN BURNERS 2. BURNER MANIFOLD 3. AIR SHUTTERS 4. BURNER SPRINGS 5. MAIN BURNER ORIFICE 6. TRANSFORMER 7. PILOT TUBING CONTROLS: (REFER TO UNIT WIRING DIAGRAM) 8A. MAIN GAS VALVE (HONEYWELL) 8B.
- Page 18 GAS INPUT RATE 3. The adjusted manifold pressure should not vary more than 10% from the pressure specified in Check the gas input rate as follows. To calculate Table 7. metric units, refer to general safety section for metric conversions/SI units): Table 7 - Main Burner Orifi...
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Page 19: Maintenance
PILOT ADJUSTMENT MANIFOLD PRESSURE ADJUSTMENT 1. Remove the pilot adjustment cap. If the manifold pressure requires minor adjustment, 2. Adjust the pilot screw to provide a properly sized remove the cap from the pressure regulator and turn fl ame. the adjustment screw clockwise to increase the 3. - Page 20 Table 8 - Power Vented Blowers Troubleshooting Guide POSSIBLE CAUSE(S) CORRECTIVE ACTION SYMPTOMS A. Flame lifting from burner ports. 1. Pressure regulator set too high. 1. Reset manifold pressure. Refer to “Operation”. 2. Defective Regulator. 2. Replace regulator section of combination gas valve or complete valve.
- Page 21 Power Vented Blowers Troubleshooting Guide POSSIBLE CAUSE(S) CORRECTIVE ACTION SYMPTOMS H. continued 9. Loose wiring. 9. Check and tighten all wiring connections per diagrams. 10. Defective ignition control. 10. Replace, if necessary. Also see W, X & Y symptoms. J. Condensation of water vapor. 1.
- Page 22 Power Vented Blowers Troubleshooting Guide POSSIBLE CAUSE(S) CORRECTIVE ACTION SYMPTOMS O. continued 3. Defective fan switch. 3. Check for 24V across 1 and 3 terminals on fan time delay switch. If 24V is present, jumper terminals numbered 2 and 4. If motor runs, the fan switch is defective and must be replaced.
- Page 23 Power Vented Blowers Troubleshooting Guide POSSIBLE CAUSE(S) CORRECTIVE ACTION SYMPTOMS X. Pilot lights — Main valve does not 1. Loose S8600 connections. 1. Check connections-term. MV feeds main energize. valve. 2. Cracked or broken sensor ceramic. 2. Replace pilot assembly. 3.
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Page 24: Identification Of Parts
IDENTIFICATION OF PARTS BLOWER UNIT HEATERS Figure 19 - Component Parts (Bottom View) MOTOR BELT GUARD BLOWER WHEEL/HOUSING GAS VALVE ELECTRIC IGNITOR BURNER DRAWER COMPARTMENT LIGHTING INSTRUCTIONS/ DATA PLATE MAIN BURNERS PILOT ACCESS DOOR/ OBSERVATION PORT CARRYOVER Figure 20 - Internal Furnace Components Figure 21 - Burner Assembly Parts 1. - Page 25 Figure 22 - Power Venter Assembly REF. REF. DESCRIPTION DESCRIPTION Blower Housing Assembly Drill Screw Speed Nut Junction Box Cover Snap Bushing Motor Washer, Plain Relay (Motor) Plate Adapter Draftor Stack Assembly Blower Wheel* Tubing Formation (Aluminum) Mounting Bracket (Pressure Switch) Male Connector Locknut Mounting Bracket (Junction Box)
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Page 26: Installation Instructions
INSTALLATION INSTRUCTIONS FOR FIELD REPLACEMENT OF POWER VENTER MOTOR Never service any compartment NOTICE: All hardware (screws, nuts, washers) that will be removed from the unit will be reused for this without first disconnecting all electrical and motor replacement. DO NOT LOSE ANY OF THESE gas supplies. -
Page 27: How To Order Replacement Parts
HOW TO ORDER REPLACEMENT PARTS Please send the following information to your local representative. If further assistance is needed, contact the manufacturer's customer service department. • Model number • Serial Number (if any) • Part description and Number as shown in the Replacement Parts Catalog. LIMITED WARRANTY POWER VENTED GAS–FIRED BLOWER UNIT HEATERS The Manufacturer warrants to the original owner at original installation site that the above model of... - Page 28 GAS EQUIPMENT START-UP Customer ____________________________________ Job Name & Number _________________________ PRE-INSPECTION INFORMATION With power and gas off. Type of Equip: Unit Heater Duct Furnace Indoor Rooftop Serial Number _________________________ Model Number __________________________ Name Plate Voltage: _____________ Name Plate Amperage: _____________ Type of Gas: Natural Tank Capacity _______ lbs.
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Page 29: Unit Number Description
POWER VENTED BLOWER UNIT NUMBER DESCRIPTION Digit X X X X — 1 9 10 11 12 13 14 15 + Item Prefi x FT FM GT AL GC SV MT MS (Internal use Only) Digit #1, 2 - Unit Type [UT] Digit #13 - Motor Type [MT] B2 - Power Vented Blower 1 - Open Drip Proof... - Page 30 NOTES:...
- Page 31 NOTES:...
- Page 32 260 NORTH ELM ST., WESTFIELD, MA 01085 TEL: (413) 568-9571 FAX: (413) 562-8437 www.mestek.com...
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