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Mestek R(B,S,M) S/U 040 Installation And Operation Instructions Manual

Infrared radiant tube heater single and two stage push through system (positive pressure)
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INSTALLATION AND OPERATION INSTRUCTIONS
OWNER / INSTALLER: For your safety this manual must be carefully and thoroughly read and
understood before installing, operating or servicing this heater.
Single and Two Stage Push Through System (Positive Pressure)
R (B,S,M) S SERIES: (040, 050, 075, 100, 125, 150, 175, 200) – N1/L1/N2/L2
R (B,S,M) U SERIES: (040, 050, 075, 100, 125, 150, 175, 200) – N1/L1/N2/L2
!INSTALLER: This manual is the property of the owner. Please present this manual to the
owner when you leave the job site.
▲WARNING: Improper installation, adjustment, alteration, service, or maintenance can
cause property damage, injury or death. Read the installation, operation and maintenance
instructions thoroughly before installing or servicing this equipment.
IF YOU SMELL GAS:
! ! ! ! DO NOT
DO NOT try to light any appliance.
DO NOT
DO NOT
! ! ! ! DO NOT
DO NOT touch any electrical switch; DO NOT
DO NOT
DO NOT
telephone in your building.
! ! ! ! IMMEDIATELY
IMMEDIATELY call your gas supplier from a neighbor's
IMMEDIATELY
IMMEDIATELY
telephone. Follow the gas supplier's instructions. If you
cannot reach your gas supplier, call the fire department.
!IMPORTANT: SAVE THIS MANUAL FOR FUTURE REFERENCE.
!IMPORTANT:
!IMPORTANT:
!IMPORTANT:
INFRARED RADIANT TUBE HEATER
FOR YOUR SAFETY
FOR YOUR SAFETY
FOR YOUR SAFETY
FOR YOUR SAFETY
DO NOT use any
DO NOT
DO NOT
SAVE THIS MANUAL FOR FUTURE REFERENCE.
SAVE THIS MANUAL FOR FUTURE REFERENCE.
SAVE THIS MANUAL FOR FUTURE REFERENCE.
260 North Elm St. • Westfield, MA 01085
Telephone (413) 568-9571 • Fax (413) 562-8437 • www.mestek.com
Models:
DO NOT store or use gasoline or other
DO NOT
store or use gasoline or other
DO NOT
DO NOT
store or use gasoline or other
store or use gasoline or other
flammable vapors and liquids in the vicinity of
flammable vapors and liquids in the vicinity of
flammable vapors and liquids in the vicinity of
flammable vapors and liquids in the vicinity of
this or any other appliance.
this or any other appliance.
this or any other appliance.
this or any other appliance.
Mestek, Inc.
Mestek, Inc.
Mestek, Inc.
Mestek, Inc.
Form 43343350
Oct 2013

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  • Page 1 SAVE THIS MANUAL FOR FUTURE REFERENCE. SAVE THIS MANUAL FOR FUTURE REFERENCE. Mestek, Inc. Mestek, Inc. Mestek, Inc. Mestek, Inc. 260 North Elm St. • Westfield, MA 01085 Telephone (413) 568-9571 • Fax (413) 562-8437 • www.mestek.com Form 43343350 Oct 2013...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS SECTION DESCRIPTION PAGE 1.0) Safety ..............................2 2.0) Installer Responsibility ........................2 3.0) General Information........................... 2 4.0) Minimum Clearances to Combustibles ................... 4 5.0) Specifications............................5 6.0) Packing List ............................5 6.1) Accessory Packages ........................11 7.0) Typical Layouts –...

  • Page 3: Safety

    1.0) SAFETY This heater is a self-contained infrared radiant tube heater. Safety information required during installation and operation of this heater is provided in this manual and the labels on the product. The installation, service and maintenance of this heater must be performed by a contractor qualified in the installation and service of gas fired heating equipment.
  • Page 4 Although these heaters may be used in many applications other than space heating (e.g., process heating), Mestek, Inc. will not recognize the warranty for any use other than space heating. For indoor installation only. Not for use in residential dwellings.

  • Page 5: Minimum Clearances To Combustibles

    NFPA54 requires that the installer must post signs that will “specify the maximum permissible stacking height to maintain the required clearances from the heater to combustibles.” to maintain the required clearances from the heater to combustibles.” Mestek, Inc. to maintain the required clearances from the heater to combustibles.”...

  • Page 6: Specifications

    16 ft. * MOUNT HEATERS AS HIGH AS POSSIBLE. Minimums are shown as a guideline for human comfort and uniform energy distribution for complete building heating applications. Consult your Mestek, Inc. representative for the particulars of your installation requirements. Ty Ty Ty Type...
  • Page 7 BURNER PACKAGE NUMB BURNER PACKAGE NUMB 1 1 1 1 - - - - STAGE CONTROLS STAGE CONTROLS - - - - MESTEK MESTEK 2 2 2 2 - - - - STAGE CONTROLS STAGE CONTROLS - - - - MESTEK...
  • Page 8 1 1 1 1 - - - - STAGE CONTROLS STAGE CONTROLS – – – – BEACON/MORRIS BEACON/MORRIS 2 2 2 2 - - - - STAGE CONTROLS STAGE CONTROLS – – – – BEACON/MORRIS BEACON/MORRIS STAGE CONTROLS STAGE CONTROLS BEACON/MORRIS BEACON/MORRIS STAGE CONTROLS...
  • Page 9 System System System Systems s s s 60Ft. System 60Ft. System 60Ft. System 60Ft. System 70Ft. System 70Ft. System 70Ft. System 70Ft. System 40 Ft. Pkg 40 Ft. Pkg 20 Ft. Pkg 20 Ft. Pkg 40 Ft. Pkg. 40 Ft. Pkg. 30 Ft.
  • Page 10 D. D. D. D. R(B,S,M) U R(B,S,M) U R(B,S,M) U R(B,S,M) U 0 0 0 0 40 40- - - - 200 Body Package Descriptions 200 Body Package Descriptions 200 Body Package Descriptions 200 Body Package Descriptions (Package Part Number is indicated on the outside of each corresponding carton.) 2 2 2 2 0Ft.
  • Page 11 E. E. E. E. R(B,S,M) U R(B,S,M) U R(B,S,M) U R(B,S,M) U 0 0 0 0 40 40- - - - 200 Series Body Package Descriptions 200 Series Body Package Descriptions 200 Series Body Package Descriptions – – – – ALC Option (Aluminized Heat Treated 200 Series Body Package Descriptions ALC Option (Aluminized Heat Treated ALC Option (Aluminized Heat Treated) ) ) )

  • Page 12: Accessory Packages

    6.1) ACCESSORY PACKAGES A. A. A. A. End Reflector End Reflector Accessory Package, Part #4334100 Accessory Package, Part #43341000 0 0 0 End Reflector End Reflector Accessory Package, Part #4334100 Accessory Package, Part #4334100 (1 pkg. per S - Straight Series or 2 pkgs. per U - Series) Contains: End Reflector, #43320000……QTY–2 Speed Clips, #02266010……QTY–8...
  • Page 13 E. E. E. E. U U U U - - - - Bend Reflector Package, Part #43488000 Bend Reflector Package, Part #43488000 Bend Reflector Package, Part #43488000 Bend Reflector Package, Part #43488000 (Option for U - Series Only) Contains: U-Bend Reflector, #43490000……QTY–1 U-Bend End Reflector, #43490050……QTY–1 Speed Clips, #02266010……QTY–11 #10-16 x ½...

  • Page 14: Typical Layouts - Straight And U Series

    7.0) TYPICAL LAYOUTS – STRAIGHT AND U SERIES LEGEND EMITTER LENGTH EMITTER LENGTH BODY LENGTH BODY LENGTH EMITTER LENGTH EMITTER LENGTH BODY LENGTH BODY LENGTH MODEL MODEL MODEL MODEL MODEL MODEL MODEL MODEL Min. Min. Min. Min. Max. Max. Max. Max.

  • Page 15: Typical Assembly Layout - Straight Series Shown

    7.1) TYPICAL ASSEMBLY LAYOUT – STRAIGHT SERIES SHOWN POISONOUS GAS AND SOOT HAZARD LEGEND Form 43343350 -14- Oct 2013...

  • Page 16: Dimensions - Straight Series

    8.0) DIMENSIONS – STRAIGHT SERIES Typical Dimensions Up to 60 Ft. Shown. Form 43343350 Oct 2013 -15-...

  • Page 17: Dimensions - U Series

    8.1) DIMENSIONS – U SERIES Typical Dimensions Up to 50 Ft. Shown. Form 43343350 -16- Oct 2013...

  • Page 18: Heater Assembly / Joining Of Tube Sections

    8.2) HEATER ASSEMBLY / JOINING OF TUBE SECTIONS Form 43343350 Oct 2013 -17-...
  • Page 19 Form 43343350 -18- Oct 2013...

  • Page 20: Typical Suspension Methods

    6. Heaters must not be supported by gas or electric supply lines and must be suspended from a permanent structure with adequate load capacity. Mestek, Inc. recommends that the body sections be suspended using chains with turnbuckles. This will allow slight adjustments after assembly and heater expansion/ contraction during operation.

  • Page 21: Assembly Of Tube Sections

    10.0) ASSEMBLY OF TUBE SECTIONS During field assembly of the heater body sections, the recommended procedure is as follows: 1. Before hanging heater sections, first determine the actual layout of the system (see Sections 7.0) & 8.0) for details). Consideration must also be taken for flue pipe, fresh air ducting, gas piping, clearances to combustibles, etc.

  • Page 22: Assembly Of Extension Section

    10.1) ASSEMBLY OF EXTENSION SECTION See typical assembly overview (Section 8.0) for typical complete assembly. Assemble additional extension sections as required for all systems. (See Sections 7.0), and 8.0) for typical layout details.) Join the tube sections together and secure with tube couplings as described below: T T T T he following he following he following...

  • Page 23: Inserting Turbulators

    4. Slide the next tube into the coupling. 5. Make sure both tube ends are butted together. 6. Finish tightening both bolts to 40-60 ft.lbs. torque to ensure a complete seal. 7. Use the two Self-drilling screws through the pre-punched holes to secure the tubes in the coupling. 8.

  • Page 24: Adding Body Reflectors

    MODEL 2 Ft. Turbulator Sections 2 Ft. Turbulator Sections MODEL MODEL 2 Ft. Turbulator Sections 2 Ft. Turbulator Sections R(B,S,M) S/U 040 R(B,S,M) S/U 050 R(B,S,M) S/U 075 R(B,S,M) S/U 100 R(B,S,M) S/U 125 R(B,S,M) S/U 150 R(B,S,M) S/U 175 R(B,S,M) S/U 200 10.3)

  • Page 25: Adding Optional 90º Elbow - Straight Series Only

    11.0) ADDING OPTIONAL 90º ELBOW - STRAIGHT SERIES ONLY 1. The optional 90º elbow must be located a minimum of 10 ft. after the burner box. 2. Hang the body sections in a 90º ("L") shaped pattern. Allow spacing for the elbow. The distance from one end of the elbow to the centerline of the opposite leg is 13"...

  • Page 26: Adding 180º U-Bend - U Series Only

    11.2) ADDING 180º U-BEND - U SERIES ONLY 1. Hang body sections parallel with each other. The centerline distance from tube at each body section should be 18” as shown. 2. Join tube ends of body sections and the U-Bend together and secure with tube couplings as described in Section 10.1).

  • Page 27: Attaching Burner Screen - 200M Btu Models Only

    12.0) ATTACHING BURNER SCREEN – 200M BTU MODELS ONLY A burner screen is packaged with the control unit to prevent damage during shipment. This must be field installed as shown below before operation of the heater. 1. Remove cover panel 1. 2.

  • Page 28: Attaching Burner Box Assembly

    12.1) ATTACHING BURNER BOX ASSEMBLY 1. Attach the burner box and gasket to end of tube flange and secure with 1/4-20 locknuts. 2. Assemble the optional end reflector flush with the end of the main body reflector. Secure by sliding speed clips onto the reflector edges.

  • Page 29: Connecting The Tiss System

    12.2) CONNECTING THE TISS SYSTEM Description: Description: The TISS Description: Description: TISS TISS (Tube Integrity Safety System) TISS (Tube Integrity Safety System) (Tube Integrity Safety System) (Tube Integrity Safety System) is designed to shut the main burner off in the event that a burnout occurs in the first 10ft.
  • Page 30 3. Hold the spring retainer clamp and pull the TISS TISS TISS TISS wire assembly to end of reflector at overlap joint. Slide spring retainer clamp over end of reflector as shown. Step 3 4. After attachment of the TISS TISS TISS, check to make sure that there is sufficient tension on the wire.
  • Page 31 ANGLE MOUNTED HEATERS ONLY ANGLE MOUNTED HEATERS ONLY ANGLE MOUNTED HEATERS ONLY ANGLE MOUNTED HEATERS ONLY 5. If heaters are to be angle mounted, the TISS wire holder clamp must first be re-positioned as shown using using using using the bottom hole pattern the bottom hole pattern of the clamp.

  • Page 32: Gas Connections And Regulations

    13.0) GAS CONNECTIONS AND REGULATIONS IMPORTANT BEFORE CONNECTING THE GAS TO THE HEATER IMPORTANT BEFORE CONNECTING THE GAS TO THE HEATER IMPORTANT BEFORE CONNECTING THE GAS TO THE HEATER IMPORTANT BEFORE CONNECTING THE GAS TO THE HEATER 1. Connect to the supply tank or manifold in accordance with the latest edition of National Fuel Gas Code (ANSI Z223.1), and local building codes.
  • Page 33 RECOMMENDED GAS CONNECTION POSITIONS WITH 36” FLEXIBLE GAS HOSE INCORRECT POSITIONS WRONG WRONG WRONG WRONG US ONLY: Connector MUST be installed in “ US ONLY: Connector MUST be installed in “⊃ ⊃ ⊃ ⊃ ” c ” configuration. Use only onfiguration.

  • Page 34: Instructions For Pressure Test Gauge Connection

    14.0) INSTRUCTIONS FOR PRESSURE TEST GAUGE CONNECTION DANGER SUPPLY PRESSURE SUPPLY PRESSURE SUPPLY PRESSURE SUPPLY PRESSURE 1. The installer will provide a 1/8” N.P.T. tapped plug, accessible for test gauge connection immediately upstream of the gas supply connection to the heater. MANIFOLD MANIFOLD PRESSURE MANIFOLD...
  • Page 35 2-STAGE CONTROLS 2. With the main burner operating, check the burner manifold pressure using a water column manometer. Gauges that measure pressure in pounds per square inch are not accurate enough to measure or set the manifold pressure. All measurements MUST BE MUST BE MUST BE made when this heater and all other gas burning equipment MUST BE...

  • Page 36: Electrical Thermostat Connections

    15.0) ELECTRICAL THERMOSTAT CONNECTIONS ELECTRIC SHOCK HAZARD 1. All electric wiring shall conform to the latest edition of the National Electrical Code (ANSI/NFPA No. 70), or the code legally authorized in the locality where the installation is made. 2. The unit must be electrically grounded in accordance with the National Electrical Code (ANSI/NFPA No. 70-latest edition).
  • Page 37 1 1 1 1 - - - - STAGE CONTROLS STAGE CONTROLS - - - - INTERNAL CONNECTION WIRING DIAGRAM INTERNAL CONNECTION WIRING DIAGRAM — — — — Direct Spark Ignition Direct Spark Ignition STAGE CONTROLS STAGE CONTROLS INTERNAL CONNECTION WIRING DIAGRAM INTERNAL CONNECTION WIRING DIAGRAM Direct Spark Ignition Direct Spark Ignition...
  • Page 38 1 1 1 1 - - - - STAGE CONTROLS STAGE CONTROLS STAGE CONTROLS STAGE CONTROLS - - - - THERMOSTAT THERMOSTAT THERMOSTAT THERMOSTAT WIRING DIAGRAMS WIRING DIAGRAMS WIRING DIAGRAMS WIRING DIAGRAMS A. A. A. A. LINE VOLTAGE (120V) THERMOSTAT CONNECTIONS LINE VOLTAGE (120V) THERMOSTAT CONNECTIONS –...
  • Page 39 D. D. D. D. LOW VOLTAGE (24V) THERMOSTAT CONNECTIONS LOW VOLTAGE (24V) THERMOSTAT CONNECTIONS LOW VOLTAGE (24V) THERMOSTAT CONNECTIONS – – – – MULTIPLE HEATERS (utilizing a fan center LOW VOLTAGE (24V) THERMOSTAT CONNECTIONS MULTIPLE HEATERS (utilizing a fan center MULTIPLE HEATERS (utilizing a fan center MULTIPLE HEATERS (utilizing a fan center relay)
  • Page 40 2 2 2 2 - - - - STAGE CONTROLS STAGE CONTROLS - - - - SCHEMATIC SCHEMATIC WIRING WIRING STAGE CONTROLS STAGE CONTROLS SCHEMATIC SCHEMATIC WIRING WIRING I I I I GNITION MODULE TERMINAL DESIGNATIONS GNITION MODULE TERMINAL DESIGNATIONS GNITION MODULE TERMINAL DESIGNATIONS GNITION MODULE TERMINAL DESIGNATIONS DIAGRAM...
  • Page 41 B. B. B. B. LOW VOLTAGE (24V) THERMOSTAT CONNECTIONS LOW VOLTAGE (24V) THERMOSTAT CONNECTIONS LOW VOLTAGE (24V) THERMOSTAT CONNECTIONS – – – – MULTIPLE HEATERS LOW VOLTAGE (24V) THERMOSTAT CONNECTIONS MULTIPLE HEATERS MULTIPLE HEATERS MULTIPLE HEATERS LO 24V LO 24V RELAY BOARD RELAY BOARD FIRE...

  • Page 42: Venting

    (4” diam (4” diam (4” diam (4” diameter) eter) eter) eter) R(B,S,M) S/U 040 R(B,S,M) S/U 040 R(B,S,M) S/U 050 R(B,S,M) S/U 050 R(B,S,M) S/U 050 R(B,S,M) S/U 075 R(B,S,M) S/U 075 R(B,S,M) S/U 075 R(B,S,M) S/U 100...
  • Page 43 SINGLE HEATER VENTING SINGLE HEATER VENTING SINGLE HEATER VENTING SINGLE HEATER VENTING (VERTICAL THROUGH THE ROOF) (VERTICAL THROUGH THE ROOF) (VERTICAL THROUGH THE ROOF) (VERTICAL THROUGH THE ROOF) 1. When venting the heater to outside of building through a roof, use single-wall metal pipe. This is to be constructed of galvanized sheet metal or other approved noncombustible corrosion-resistant material as allowed by state or local codes.
  • Page 44 6. A minimum clearance of 6 inches must be maintained between the outside wall and vent cap (18” clearance will provide stability under high wind conditions). 7. The horizontal venting system shall not terminate: Less than 4 ft. (1.2m) below, 4 ft. (1.2m) horizontally from or 1 ft. (30cm) above any door, operable •...
  • Page 45 Horizontal and vertical Vertical Only Vertical Only Vertical Only Vertical Only 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 R(B,S,M) S/U 040 4” 4” 4” 4” R(B,S,M) S/U 050 4” 4” 4”...

  • Page 46: Air For Combustion

    B. B. B. B. INDIRECT VENTING INDIRECT VENTING INDIRECT VENTING INDIRECT VENTING (UNVENTED HEATERS) (UNVENTED HEATERS) (UNVENTED HEATERS) (UNVENTED HEATERS) — This heater requires ventilation in the building to dilute the products of combustion and provide fresh air for efficient combustion. Where unvented heaters are used, gravity or mechanical means shall be provided to supply and exhaust at least 4 CFM per 1,000 Btu/hr input of installed heaters.
  • Page 47 In multiple heater applications multiple heater applications multiple heater applications multiple heater applications, the combustion air intake may be ducted individually or common ducted in the same configuration as shown for venting in Section 16.0). For combustion air intake duct sizing, please refer to the Vent Sizing Table Vent Sizing Table and use the diameter indicated, based on the number of heaters per duct.

  • Page 48: Lighting And Shutdown Instructions

    18.0) LIGHTING AND SHUTDOWN INSTRUCTIONS DANGER 1. Turn on the gas and electrical supply. Rotate the gas valve knob counter-clockwise to the “ON” position. 2. Set the thermostat to call for heat. The blower motor will energize. 3. Ignition should occur after the 15-second pre-purge. 4.

  • Page 49: Control Component Location

    Note: When the tube heater is operated by a thermostat interrupting the line voltage (120V) to the heater then the post purge function is disabled. If the flame is not sensed during sequence T3 then the burner will automatically begin re-ignition sequence T2. The ignition sequence will be repeated three times with a 60 second inter-purge.

  • Page 50: Cleaning And Annual Maintenance

    21.0) CLEANING AND ANNUAL MAINTENANCE ELECTRIC SHOCK & EXPLOSION HAZARD This heater must be cleaned and serviced annually by a qualified contractor before the start of each heating season and at any time excessive accumulation of dust and dirt is observed. Maximum heating efficiency and clean combustion will be maintained by keeping the heater clean.

  • Page 51: Troubleshooting Guide

    22.0) TROUBLESHOOTING GUIDE Form 43343350 -50- Oct 2013...
  • Page 52 Form 43343350 Oct 2013 -51-...
  • Page 53 Form 43343350 -52- Oct 2013...

  • Page 54: Replacing Parts

    REPLACING PARTS ELECTRIC SHOCK & EXPLOSION HAZARD Only use genuine Mestek, Inc. replacement parts. Parts are available from the factory for replacement by a licensed person. Refer to the Replacement Parts Guide in Section 25.0) for all replacement parts. 23.1) REMOVAL OF MAIN BURNER AND ELECTRODES The main burner can be inspected without removing the burner housing from the heat exchanger tube.

  • Page 55: Removing Gas Valve And Manifold Assembly

    23.2) REMOVING GAS VALVE AND MANIFOLD ASSEMBLY 23.3) AIR SWITCH PRESSURE CHECK 0.65” WC Form 43343350 -54- Oct 2013...

  • Page 56: Ignition System Checks

    Model Model Model Model Operating Pressure Operating Pressure Operating Pressure Operating Pressure R(B,S,M) S/U 040 0.98” W.C. Hot R(B,S,M) S/U 050 0.98” W.C. Hot R(B,S,M) S/U 075 0.70” W.C. Hot R(B,S,M) S/U 100 0.70” W.C. Hot R(B,S,M) S/U 125 0.39”...

  • Page 57: Installation Data

    IGNITION MODULE DIAGNOSTICS IGNITION MODULE DIAGNOSTICS IGNITION MODULE DIAGNOSTICS IGNITION MODULE DIAGNOSTICS Flame Fault Flame Fault Flame Fault Flame Fault If at any time the main valve fails to close completely and maintains a flame, the full time flame sense circuit will detect it and energize the combustion blower.

  • Page 58: Replacement Parts Guide

    25.0) REPLACEMENT PARTS GUIDE BURNER BOX BURNER BOX BURNER BOX BURNER BOX Item No. Item No. Item No. Item No. Part No. Part No. Part No. Part No. Description Description Description Description Qty. Qty. Qty. Qty. Fasteners Fasteners Fasteners Fasteners 02295040 PHTCS #6-32 x 3/8"...
  • Page 59 Labels/Ma Labels/Ma nual nual nual 42848220 Label, Nameplate - Sterling 1-Stage 42848221 Label, Nameplate – Mestek 1-Stage 42848222 Label, Nameplate – Beacon 1-Stage 42848230 Label, Nameplate - Sterling 2-Stage 42848231 Label, Nameplate – Mestek 2-Stage 42848232 Label, Nameplate – Beacon 2-Stage 42013070 Label,Logo –...
  • Page 60 Tube Integrity Plaque à Safety Switch) bornes Schéma de circuit de connexion pressostat Plaque à bornes Robinet à gaz Moteur Fusible d'amorce d'aspiration Transformateur bobine primaire 120ÊV bobine secondaire 24ÊV Haute tension Écartement d'électrode Bloc d'allumage 3,2Êmm Vers les autres radiateurs Circuit d'origine Lampes témoins...
  • Page 61 ALL ILLUSTRATIONS ARE INTENDED TO GIVE THE GENERAL IMPRESSION OF UNITS ONLY. OTHER COMBINATIONS OF 5 FT. AND 10 FT. SECTIONS, AND ONES WITH OR WITHOUT THE ELBOW PACKAGE ARE POSSIBLE. PLEASE CONSULT WITH YOUR Mestek, Inc. SALES REPRESENTATIVE. WE RESERVE THE RIGHT TO ALTER ANY SPECIFICATION WITHOUT NOTICE. Form 43343350...

  • Page 62: Warnings Card

    26.0) WARNINGS CARD Copies of this card may be ordered at no charge under part no. 43344970 for installation near the heater. Read the Installation and Operating Instructions thoroughly before installation, operation or service. WARNING FIRE HAZARD Maintain the following clearances: _____ to the side, _____ above and _____below the heater from combustible materials.

This manual is also suitable for:

R(b,s,m) s/u 150R(b,s,m) s/u 075R(b,s,m) s/u 100R(b,s,m) s/u 125R(b,s,m) s/u 175R(b,s,m) s/u 200

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