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Space-Ray LTU80-N5 Installation And Operation Instructions Manual

Space-ray infrared radiant tube heater single stage pull through system (negative pressure) ltu series/lts series
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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.
INFRARED RADIANT TUBE HEATER
Single Stage Pull Through System (Negative Pressure)
LTU SERIES:
LTS SERIES:
!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 try to light any appliance.
! DO NOT touch any electrical switch; DO NOT use any
telephone in your building.
! IMMEDIATELY call your gas supplier from a neighbor's
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.
Post Office Box 36485 (28236) • 305 Doggett Street (28203) • Charlotte, North Carolina
Phone (704) 372-6391 • Fax (704) 332-5843 • www.spaceray.com • email: info@spaceray.com
Models:
(80, 90, 100, 110, 120, 125, 130, 140, 150, 160,
175, 180, 200, 225, 250) – N5/L5
(40, 50, 60, 75, 80, 90, 100, 110, 120, 125, 130,
140, 150, 160, 175, 180, 200, 225, 250) – N5/L5
FOR YOUR SAFETY
SPACE-RAY
DO NOT store or use gasoline or other
flammable vapors and liquids in the vicinity of
this or any other appliance.
Form #43155010
Mar 09

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Summary of Contents for Space-Ray LTU80-N5

  • Page 1: Installation And Operation Instructions

    !IMPORTANT: SAVE THIS MANUAL FOR FUTURE REFERENCE. SPACE-RAY Post Office Box 36485 (28236) • 305 Doggett Street (28203) • Charlotte, North Carolina Phone (704) 372-6391 • Fax (704) 332-5843 • www.spaceray.com • email: info@spaceray.com...

  • 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) Typical Suspension Methods ......................5 6.0) LTU Series Specifications........................6 7.0) LTU Series Packing List ........................6 8.0) LTU Series Typical Layouts........................

  • Page 3: Safety

    LTS/LTU 225-250 models. Heaters may be mounted at various heights and angles depending on the application. If you have any questions, please consult your local Space-Ray representative. Every heater shall be located with respect to building construction and other equipment so as to permit access to the heater.
  • Page 4 Although these heaters may be used in many applications other than space heating (e.g., process heating), Space-Ray will not recognize the warranty for any use other than space heating. This heater is for Indoor Installation and Covered Patio Installation only and can be used in either Vented or Unvented mode.

  • 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.” Space-Ray recommends posting these signs adjacent to the heater thermostat or other suitable location that will provide enhanced visibility.

  • Page 6: 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. Space-Ray 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 7: Ltu Series Specifications

    20 ft. 19 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 Space-Ray representative for the particulars of your installation requirements. Type...
  • Page 8 LTU 80-250 CONTROL/DRAFT INDUCER PACKAGE NUMBERS NATURAL GAS PROPANE GAS MODEL NO. PART NO. MODEL NO. PART NO. MODEL NO. PART NO. MODEL NO. PART NO. LTU 80-N5 ....#42883010 LTU 150-N5 ..... #42883210 LTU 80-L5 ....#42883020 LTU 150-L5 ....#42883220 LTU 90-N5 ....#42883030 LTU 160-N5 .....

  • Page 9: Ltu Series Typical Layouts

    8.0) LTU SERIES TYPICAL LAYOUTS EMITTER MODEL LENGTH 30’ LTU 80, 90, 100, 110, 120, 125, 130 40’ LTU 125, 130, 140, 150, 160, 175 50’ LTU 180, 200, 225, 250 NOTES: 1. In all configurations, the control unit must be connected directly to either a) the 24-hole flange of the aluminized steel body section (for LTU 80-200 models) or b) the 6-hole flange of the 10 ft.
  • Page 10 Models: LTU 180-250 Form #43155010 Mar 09...

  • Page 11: Ltu 80-175 Series Heater Assembly Overview

    8.2) LTU 80-175 SERIES HEATER ASSEMBLY OVERVIEW Form #43155010 -10- Mar 09...

  • Page 12: Ltu 180-250 Series Heater Assembly Overview

    8.3) LTU 180-250 SERIES HEATER ASSEMBLY OVERVIEW Models: LTU 180-200 Models: LTU 225-250 8.4) LTU SERIES 15’ BODY PACKAGE OPENING Follow the procedure below to open the 15’ body package. 1. Remove end reflectors from packaging. 2. Lift the tube at the flange end, then slide tube support/hanger bracket between marks on tubes and tighten the “U”...

  • Page 13: Ltu 80-130 Series Heater Assembly

    8.5) LTU 80-130 SERIES HEATER ASSEMBLY During field assembly of the heater, the recommended procedure is as follows: 1. Install the suspension (according to Section 8.1) using proper suspension method (see Section 5.0). Trapeze Method Individual Suspension Method 2. Lift the body section and suspend it into place. When lifting, caution should be used to avoid damaging the assembly.
  • Page 14 3. Assembly the reflectors onto the body section. Leave 3” space between the tube flange and the first reflector for later mounting of control box and draft inducer. 4. Place the flanges of the control end reflector flush with the end of the first reflector. Secure by sliding speed clips onto reflector edges.
  • Page 15 7. Insert SJO cable through the strain relief bushing of the control box and connect to L1 and L2 of terminal block. Refer also to the wiring diagram in Section16.0). 8. Reflectors should overlap 1” to 3” and must be secured by sliding speed clips on the reflector edges. One speed clip is required for each side of the reflector.

  • Page 16: Ltu 125-250 Series - Joining Of 5' And 10' Body Sections

    8.6) LTU 125-250 SERIES – JOINING OF 5’ AND 10’ BODY SECTIONS These models require the use of an additional 5’ body section for LTU 125-175 and 10’ body section for LTU 180- 250, as shown in Section 8.1). Follow the instruction below for joining these sections. 1.

  • Page 17: Lts Series Specifications

    20 ft. 19 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 Space-Ray representative for the particulars of your installation requirements. Type...
  • Page 18 LTS SERIES CONTROL/DRAFT INDUCER PACKAGE NUMBERS NATURAL GAS PROPANE GAS MODEL NO. PART NO. MODEL NO. PART NO. MODEL NO. PART NO. MODEL NO. PART NO. LTS 40-N5....#43187010 LTS 130-N5 ..... #42883130 LTS 40-L5....#43187020 LTS 130-L5 ....#42883140 LTS 50-N5....#43187030 LTS 140-N5 .....
  • Page 19 C. LTS 225-250 Body Package Descriptions (Package Part Number is indicated on the outside of each corresponding carton.) 10’ Starting Body Pkg. 10’ Start/End Body Pkg. 10’ Extension Body Pkg. 5’ Ending Body Pkg. 43337050 43337040 43337010 43336030 System Lengths Qty.

  • Page 20: Lts Series Typical Layouts

    11.0) LTS SERIES TYPICAL LAYOUTS NOTES: 1. In all configurations, the control unit must be connected directly to either a) the 24-hole flange of the 10 ft. aluminized steel start/end body section (for LTS 40-200 models) or b) the 6-hole flange of the 10 ft. alumi- therm steel starting body section (for LTS 225 and 250 models).

  • Page 21: Lts Series Dimensions

    11.1) LTS SERIES DIMENSIONS Typical Dimensions Up to 50 Ft. Shown Form #43155010 -20- Mar 09...

  • Page 22: Lts 40-175 Series Heater Assembly Overview

    11.2) LTS 40-175 SERIES HEATER ASSEMBLY OVERVIEW Form #43155010 Mar 09 -21-...

  • Page 23: Lts 180-250 Series Heater Assembly Overview

    11.3) LTS 180-250 SERIES HEATER ASSEMBLY OVERVIEW Models: LTS 180-200 Models: LTS 225-250 11.4) LTS SERIES HEATER ASSEMBLY During field assembly of the LTS series heater body sections, the recommended procedure is as follows: 1. Before hanging heater sections, first determine the actual layout of the system (see Sections 11.0) & 11.1) for details).
  • Page 24 4. Join the body sections together and secure with tube couplings as follows: The following coupling tightening instructions MUST be followed properly to ensure the integrity of the tube connections. Two #10 self-drilling screws MUST be installed at every coupling as shown in the instructions below. Failure to do so may result in serious injury or property damage.

  • Page 25: Lts Series - Adding Optional 90º Elbow

    5. For LTS225-250 Models, join the first two body sections as illustrated below. a) Join the tube flanges of the body sections together with the gasket in between. Loosely attach the heater body sections together with the ¼-20 screws and locknuts provided. DO NOT fully tighten the screws and locknuts yet! b) Tighten the screws and locknuts using the sequence shown.

  • Page 26: Lts Series - Adding Optional Corner Reflector

    11.6) LTS SERIES - ADDING OPTIONAL CORNER REFLECTOR 1. Place the corner reflector over the reflectors of both body sections. 2. Secure by sliding speed clips on the reflector edges. One speed clip is required for each side of reflector. 3.

  • Page 27: Lts Series - Attaching Draft Inducer Assembly

    4. The heater can be mounted horizontally or at an angle of up to 45 degrees maximum from horizontal. When angle mounting, the control box must be positioned upright. Failure to install the control box in an upright position will VOID the manufacturer’s warranty. For additional instructions see Section 13.0) for multiple hanging and draft inducer positions.

  • Page 28: Lts Series - Inclined Mounting Instructions

    11.9) LTS SERIES - INCLINED MOUNTING INSTRUCTIONS These inclined mounting instructions relate to LTS series heaters (straight tubes) that do not utilize the elbow accessory. These heaters have been tested and design certified by the CSA for 2”/12” pitch (10º) inclined mounting of the heater from the control box to the draft inducer assembly as shown in the following diagram.

  • Page 29: Accessory Packages

    12.0) ACCESSORY PACKAGES A. Elbow Accessory Package, Part #43208010 (Option for LTS Series Only) Contains: Elbow, #43175000……QTY–1 #10-16 x ½ Self-Drilling Screws, #02189020……QTY–2 Tube Coupling, #30462980……QTY–1 B. Corner Reflector Accessory Package, Part #43342000 (Option for LTS Series Only) Contains: Corner Reflector Assembly, #43345000……QTY–1 Speed Clips, #02266010……QTY–4 C.
  • Page 30 4. Replace the motor and blower assembly. Tighten the locknuts. 5. Horizontal and 45º draft inducer positions can allow the plastic vacuum air tube to sag. The air tube should be shortened to prevent a downward sag that could allow condensation build-up in the tube. Form #43155010 Mar 09 -29-...

  • Page 31: Gas Connections And Regulations

    14.0) GAS CONNECTIONS AND REGULATIONS 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. Authorities having jurisdiction should be consulted before the installation is made.
  • Page 32 US ONLY: Connector MUST be installed in “⊃” configuration. Use only the 36” long connector that was furnished with this heater. US ONLY: A gas connector certified for use on a tubular type infrared heater per the standard for Connectors for Gas Appliances, ANSI Z21.24/CSA 6.10 is supplied for installation in US only.

  • Page 33: Instructions For Pressure Test Gauge Connection

    15.0) INSTRUCTIONS FOR PRESSURE TEST GAUGE CONNECTION 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 PRESSURE – COMBINATION GAS VALVE IS FACTORY SET 1.

  • Page 34: Electrical Connections

    16.0) ELECTRICAL CONNECTIONS 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 35 2. When connecting the supply circuit to the heater, wiring material having a minimum size of 14 AWG and a temperature rating of at least 90ºC shall be used. 3. A replaceable 3-amp fuse (1-1/4” long) is fitted to the Ignition Control Module. SCHEMATIC WIRING DIAGRAM —...
  • Page 36 C. LOW VOLTAGE (24V) THERMOSTAT CONNECTIONS – SINGLE HEATER PER THERMOSTAT Order 24V Relay Kit (Part No. 43274010) for Low Voltage (24V) thermostat connection. NOTES: 1. If any of the original wire as supplied with the appliance must be replaced, it must be replaced with wiring material having a temperature rating of at least 105ºC.

  • Page 37: Venting

    17.0) VENTING A. BASIC FLUE VENTING — Venting must comply with the latest edition of the National Fuel Gas Code (ANSI Z223.1-latest edition) or the authority having jurisdiction. Other venting references are in the equipment volume of the ASHRAE Handbook. SINGLE HEATER VENTING (VERTICAL THROUGH THE ROOF) 1.
  • Page 38 SINGLE HEATER VENTING (HORIZONTAL THROUGH SIDEWALL) When venting the heater horizontally through a combustible outside sidewall, the same requirements listed previously for venting Vertical Through The Roof apply except as follows: 1. A vent passing through a combustible wall must pass through an approved clearance thimble (Air-Jet #4VT or Ameri-Vent #4EWT or other thimbles) that are listed by a nationally recognized testing agency.
  • Page 39 MULTIPLE HEATER VENTING (CONNECTIONS INTO A COMMON VENT OR MANIFOLD) Requirements for venting of multiple heaters are the same as described for SINGLE HEATER VENTING except as follows: 1. The common vent size and total vent height is normally determined by the number of heaters per common vent, length of horizontal connector runs, and connector rise.
  • Page 40 Multiple Heater Horizontal Venting Arrangement Multiple Heater Venting (Connections into a Manifold) VENT SIZING TABLE — Multiple Heater Venting Number of Heaters LTU40-50 4” 4” 5” 5” 6” LTU60-75 4” 5” 6” 6” 7” LTS/U80-100 4” 6” 6” 7” 8” LTS/U110-130 4”...

  • Page 41: Air For Combustion

    B. INDIRECT VENTING (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 42 In multiple heater applications, the combustion air intake may be ducted individually or common ducted in the same configuration as shown for venting in Section 17.0). For combustion air intake duct sizing, please refer to the Vent Sizing Table and use the diameter indicated, based on the number of heaters per duct. Form #43155010 Mar 09 -41-...

  • Page 43: Lighting And Shutdown Instructions

    19.0) LIGHTING AND SHUTDOWN INSTRUCTIONS 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 30-second air pre-purge. 4.

  • Page 44: Control Component Location

    21.0) CONTROL COMPONENT LOCATION NOTE: Access panel only opens to 90°. Form #43155010 Mar 09 -43-...

  • Page 45: Cleaning And Annual Maintenance

    22.0) CLEANING AND ANNUAL MAINTENANCE 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 46: Troubleshooting Guide

    23.0) TROUBLESHOOTING GUIDE Form #43155010 Mar 09 -45-...
  • Page 47 Form #43155010 -46- Mar 09...
  • Page 48 Form #43155010 Mar 09 -47-...

  • Page 49: Replacing Parts

    24.0) REPLACING PARTS Only use genuine Space-Ray replacement parts. Parts are available from the factory for replacement by a licensed person. Refer to the Replacement Parts Guide in Section 26.0) for all replacement parts. 24.1) REMOVING SPARK ELECTRODE The main burner can be inspected without removing the burner housing from the heat exchanger tube.

  • Page 50: Removing Main Burner And Gas Valve

    24.2) REMOVING MAIN BURNER AND GAS VALVE 1. Disconnect electrical supply and gas connection at the restrainer nipple. 2. Open the access panel and disconnect the wires from gas valve. 3. Remove the burner clamp and screws. 4. Remove the burner and gas valve assembly from the cabinet. 5.

  • Page 51: Air Switch Pressure Check

    24.3) AIR SWITCH PRESSURE CHECK 1. Open hinged access panel. 2. Add tubing to connect the air switch with the connector tee and the existing tubing. 3. Connect plastic tubing of a digital or inclined water manometer with a 0-2” scale onto the connector tees. 4.

  • Page 52: Motor And Blower Wheel Check

    TO CHECK FLAME SENSOR CIRCUIT. a. Turn off heater at thermostat. b. Connect a meter (dc microammeter scale) in series with the ground lead as shown in the diagram. Connect the meter as follows: • Disconnect the ground lead at the electronic control. •...

  • Page 53: Replacement Parts Guide

    26.0) REPLACEMENT PARTS GUIDE DRAFT INDUCER COMPONENTS Item No. Part No. Description 42917000 Draft Inducer Assembly, 40M–175M Btu/hr models 42928000 Motor Replacement Kit, 40M–175M Btu/hr models 42917010 Draft Inducer Assembly, 180M–250M Btu/hr models 42928010 Motor Replacement Kit, 180M–250M Btu/hr models 03723020 Blower Wheel, Beckett (180M–250M Btu/hr models) 03723000...
  • Page 54 Circuit d'origine Schéma de circuit de connexion Connexions client Moteur d'amorce Lampes témoins d'aspiration Bloc de jonction Armoire de commande pressostat Robinet à gaz Fusible Écartement d'électrode 4,7Êmm Haute tension Plaque à Câble SJO bornes Transformateur (non compris) bobine primaire 120ÊV Vers les autres bobine secondaire 24ÊV radiateurs...
  • Page 55 Label, Wire Diagram (ladder) 42874000 Label, Wire Diagram 42875000 Label, Warning 43269000 Label, 24V Supply 43270000 Label, Terminal ID 42013000 Label, “Space-Ray” Logo 42848000 Label, “Space-Ray” Nameplate 43344000 Label, Clearance to Combustibles 43344050 Label, Gas Connector Warning Form #43155010 -54- Mar 09...
  • Page 56 Moteur Témoin vert Transformateur 24ÊV Témoin rouge pressostat Bloc d'allumage électrode Robinet à gaz Témoin ambre Montage horizontal (69cm) (15cm) (104cm) (76cm) (122cm) (30cm) (69cm) (15cm) (145cm) (76cm) (122cm) (30cm) (132cm) (15cm) (145cm) (76cm) (122cm) (30cm) (183cm) Montage à 45° (168cm) (15cm) (224cm)
  • Page 57 BODY COMPONENTS: LTS 40-250 Item Part No. Description 02266010 Reflector Speed Clip 42769011 Reflector Clamp with Screw 42873000 “U” Bolt Clamp, 4” OD Tube 02127110 5/16-18 Hex Nut (2 per “U” Bolt) 43318000 Tube Support/Hanger Bracket, 13” (2 per 5 ft. or 10 ft. body section) 43319050 Reflector, 4’-11½”...
  • Page 58 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 SPACE-RAY SALES REPRESENTATIVE. WE RESERVE THE RIGHT TO ALTER ANY SPECIFICATION WITHOUT NOTICE.

This manual is also suitable for:

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