Gas-Fired, Low Intensity Unitary Heater

Transcription

1 FOR YOUR SAFETY If you smell gas: 1. Open windows. 2. DO NOT try to light any appliance. 3. DO NOT use electrical switches. 4. DO NOT use any telephone in your uilding. 5. Leave the uilding. 6. Immediately call your local gas supplier after leaving the uilding. Follow the gas supplier s instructions. 7. If you cannot reach your gas supplier, call the Fire Department. WARNING Gas-Fired, Low Intensity Unitary Heater Installation, Operation & Service Manual Fire Hazard Do not store or use gasoline or other flammale vapors and liquids in the vicinity of this or any other appliance. Some ojects will catch fire or explode when placed close to heater. CTH3-80 CTH3-115 CTH3-150 CTH3-200 Failure to follow these instructions can result in death, injury or property damage. WARNING Improper installation, adjustment, alteration, service or maintenance can result in death, injury or property damage. Read the Installation, Operation and Service Manual thoroughly efore installing or servicing this equipment. Installation must e done y a contractor qualified in the installation and service of gas-fired heating equipment or your gas supplier. Installer Please take the time to read and understand these instructions prior to any installation. Installer must give a copy of this manual to the owner. Owner Keep this manual in a safe place in order to provide your serviceman with necessary information. Quality in Any Language Copyright 2005 Roerts-Gordon Roerts-Gordon, LLC 1250 William Street P.O. Box 44 Buffalo, New York Telephone: Fax: Toll Free: P/N NA Rev C 10/05

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3 TABLE OF CONTENTS SECTION 1: Heater Safety Manpower Requirements... 1 SECTION 2: Installer Responsiility Wall Tag Corrosive Chemicals National Standards and Applicale Codes... 2 SECTION 3: Critical Considerations Required Clearances to Comustiles... 3 SECTION 4: National Standards and Applicale Codes Gas Codes Aircraft Hangars Pulic Garages Electrical Venting High Altitude... 7 SECTION 5: Major Components Standard Parts List... 9 SECTION 6: Heater Installation Burner Tue Installation Tue Clamp Package Installation Coupling and Tue Assemly Turulator Installation Installation Burner Installation SECTION 7: Optional Heater Accessories U-Tue Configuration Elow Package Configuration Side Extension Lower Clearance Shield Installation Two-Foot Decorative Grille Installation One-Foot Decorative Grille Installation Protective Grille Installation SECTION 8: Venting Venting Unvented Operation Horizontal Venting Vertical Venting Unvented Operation Tue Termination Length Requirements Horizontal Ventilation 4 in (10 cm) Pipe Vertical Ventilation 4 in (10 cm) Pipe Common Side Wall Venting Common Vertical Venting Outside Comustion Air Supply SECTION 9: Gas Piping SECTION 10: Wiring Standard Heater Configuration Central and Satellite Heaters (Zoning Capaility) Communication Wiring within a Zone of Heaters Communication Wiring within a Zone of Heaters (continued) Heat Demand Control Wiring Internal Wiring Ladder Diagram Line Voltage Power Wiring Electrical Connection to the Burner Low Voltage Control Wiring Installation SECTION 11: Operation and Maintenance Sequence of Operation To Shut Off Heater To Start Heater Pre-Season Maintenance and Annual Inspection Maintenance Checklist SECTION 12: Trouleshooting Control LED General LED Codes Trouleshooting Flow Chart Manifold Gas Pressure Measurement Pneumatic Connections SECTION 13: Replacement Parts SECTION 14: General Specifications Material Specification Heater Specifications Suspension Specifications Controls Specifications SECTION 15: The ROBERTS GORDON VANTAGE MODULATING Warranty All rights reserved. No part of this work covered y the copyrights herein may e reproduced or copied in any form or y any means - graphic, electronic, or mechanical, including photocopying, recording, taping or information storage and retrieval systems - without the written permission of Roerts-Gordon. Printed in U.S.A.

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5 TABLE OF FIGURES Figure 1: Standard... 3 Figure 2: One Side... 4 Figure 3: Two Side s... 4 Figure 4: 45 Tilt... 4 Figure 5: U-Tue, Standard... 5 Figure 6: U-Tue, Figure 7: U-Tue, Opposite Figure 8: 2-Foot Deco Grille, 1-Foot Deco Grille and Protective Grille... 6 Figure 9: Lower Clearance Shield... 6 Figure 10: Venting... 6 Figure 11: Major Component Descriptions... 8 Figure 12: Critical Hanger Placement Figure 13: Linear Heater Assemly Overview Figure 14: Linear Heater Layout Overview Figure 15: U-Tue Heater Assemly Overview Figure 16: U-Tue Heater Layout Overviews Figure 17: Joint Detail Figure 18: Tue Termination Figure 19: Gas Connection with Flexile Gas Hose Figure 20: Zone Sensor Wiring Diagram Figure 21: Central Heater Jumper Settings Figure 22: Satellite Heater Jumper Setting Figure 23: Communication Wiring within a Zone of Heaters Figure 23: Communication Wiring within a Zone of Heaters (continued) Figure 24: Thermostat Control Wiring Diagram Figure 25: Analog Control Signal Wiring Diagram Figure 26: Potentiometer Control Wiring Diagram... 46

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7 SECTION 1: HEATER SAFETY SECTION 1: HEATER SAFETY Your Safety is Important to Us! This symol is used throughout the manual to notify you of possile fire, electrical or urn hazards. Please pay special attention when reading and following the warnings in these sections. Installation, Service and Annual Inspection of heater must e done y a contractor qualified in the installation and service of gas-fired heating equipment. Read this manual carefully efore installation, operation or service of this equipment. This heater is designed for heating nonresidential indoor spaces. Do not install in residential spaces. These instructions, the layout drawing, local codes and ordinances, and applicale standards that apply to gas piping, electrical wiring, venting, etc. must e thoroughly understood efore proceeding with the installation. Thin sheet metal parts, including the aluminum reflector portion of the heater and the various venting components, have sharp edges. To prevent injury, the use of work gloves is recommended. The use of gloves will also prevent the transfer of ody oils from the hands to the surface of the reflector. Before installation, check that the local distriution conditions, nature of gas and pressure, and adjustment of the appliance are compatile. 1.1 Manpower Requirements To prevent personal injury and damage to the heater, two persons will e required for installation. 1

8 CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL SECTION 2: INSTALLER RESPONSIBILITY The installer is responsile for the following: To install the heater, as well as the gas and electrical supplies, in accordance with applicale specifications and codes. Roerts-Gordon recommends the installer contact a local uilding inspector or Fire Marshal for guidance. To use the information given in a layout drawing and in the manual together with the cited codes and regulations to perform the installation. To install the heater in accordance with the Clearances to Comustiles. To furnish all needed materials not furnished as standard equipment. To plan location of supports. To provide access to urners for servicing on all sides, for urner removal. To provide the owner with a copy of this installation, operation and service manual. To never use heater as support for a ladder or other access equipment and never hang or suspend anything from heater. To ensure there is adequate air circulation around the heater and to supply air for comustion, ventilation and distriution in accordance with local codes. To safely and adequately install heater using materials with a minimal working load of 75 ls (33 kg). 2.1 Wall Tag A laminated wall tag is availale for the heater as a permanent reminder of the safety instructions and the importance of the required clearances to comustiles. Please contact Roerts-Gordon or your ROBERTS GORDON independent distriutor to otain the wall tag. Affix the tag y peeling off the acking of the adhesive strips on the rear surface and position the tag on a wall near the heater (e.g. thermostat or ROBERTS GORDON BZC Controller). A copy of the wall tag (P/N ) is illustrated on the ack cover. For an immediate solution, you may affix this copy on the wall near the heater. Know your model numer and installed configuration. Model numer and installed configuration are found on the urner and in the Installation, Operation and Service Manual. See Page 3, Figure 1 through Page 6, Figure 10. Write the proper clearance dimensions in permanent ink according to your model numer and configuration in the open spaces on the tag. 2.2 Corrosive Chemicals CAUTION Do not use heater in an area containing corrosive chemicals. Avoid the use of corrosive chemicals to ensure a longer life of the urner, tuing and other parts. Failure to follow these instructions can result in property damage. Roerts-Gordon cannot e responsile for ensuring that all appropriate safety measures are undertaken prior to installation; this is entirely the responsiility of the installer. It is essential that the contractor, the su-contractor, or the owner identifies the presence of comustile materials, corrosive chemicals or halogenated hydrocarons* anywhere in the premises. * Halogenated Hydrocarons are a family of chemical compounds characterized y the presence of halogen elements (fluorine, chlorine, romine, etc.). These compounds are frequently used in refrigerants, cleaning agents, solvents, etc. If these compounds enter the air supply of the urner, the life span of the heater components will e greatly reduced. An outside air supply must e provided to the urners whenever the presence of these compounds is suspected. Warranty will e invalid if the heater is exposed to halogenated hydrocarons. 2.3 National Standards and Applicale Codes All appliances must e installed in accordance with the latest revision of the applicale standards and national codes. This refers also to the electric, gas and venting installation. Note: Additional standards for installations in Pulic Garages, Aircraft Hangars, etc. may e applicale. 2

9 SECTION 3: CRITICAL CONSIDERATIONS SECTION 3: CRITICAL CONSIDERATIONS 3.1 Required Clearances to Comustiles Clearances are the required distances that comustile ojects must e away from the heater to prevent serious fire hazards. Comustiles are materials, that may catch on fire and include common items such as wood, paper, ruer, faric, etc. Maintain clearances to comustiles at all times for safety. Clearances for all heater models are located on the urner of the heater and on Page 3, Figure 1 through Page 6, Figure 10 in this manual. Check the clearances on each urner for the model heater eing installed to make sure the product is suitale for your application and the clearances are maintained. Read and follow the safety guidelines elow: Keep gasoline or other comustile materials including flammale ojects, liquids, dust or vapors away from this heater or any other appliance. Maintain clearances from heat sensitive material, equipment and workstations. Maintain clearances from vehicles parked elow the heater. Maintain clearances from swinging and overhead doors, overhead cranes, vehicle lifts, partitions, storage racks, hoists, uilding construction, etc. In locations used for the storage of comustile materials, signs must e posted to specify the WARNING Fire Hazard Some ojects will catch fire or explode when placed close to heater. Keep all flammale ojects, liquids and vapors the required clearances to comustiles away from heater. Failure to follow these instructions can result in death, injury or property damage. maximum permissile stacking height to maintain required clearances from the heater to the comustiles. Signs must e posted adjacent to the heater thermostat. In the asence of a thermostat, signs must e posted in a conspicuous location. Consult local Fire Marshal, Fire Insurance Carrier or other authorities for approval of proposed installation when there is a possiility of exposure to comustile airorne materials or vapors. Hang heater in accordance to the minimum suspension requirements on Page 10, Figure 12. If the radiant tues must pass through the uilding structure, e sure that adequate sleeving and fire stop is installed to prevent scorching and/or fire hazard. NOTE: 1. All dimensions are from the surfaces of all tues, couplings and elows. 2. Clearances B, C and D can e reduced y 50% after 25' (7.5 m) of tuing downstream from where the urner and urner tue connect. FIGURE 1: STANDARD REFLECTOR (inches) (centimeters) A Model A B C D A B C D CTH C B D CTH CTH CTH

10 CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL NOTE: 1. All dimensions are from the surfaces of all tues, couplings and elows. 2. Clearances B, C and D can e reduced y 50% after 25' (7.5 m) of tuing downstream from where the urner and urner tue connect. FIGURE 2: ONE SIDE REFLECTOR (inches) (centimeters) A C B D Model A B C D A B C D CTH CTH CTH CTH FIGURE 3: TWO SIDE REFLECTORS (inches) (centimeters) A C B D Model A B C D A B C D CTH CTH CTH CTH FIGURE 4: 45 TILT REFLECTOR (inches) (centimeters) A C B D Model A B C D A B C D CTH CTH CTH CTH

11 SECTION 3: CRITICAL CONSIDERATIONS NOTE: 1. All dimensions are from the surfaces of all tues, couplings and elows. 2. Clearances B, C and D can e reduced y 50% after 25' (7.5 m) of tuing downstream from where the urner and urner tue connect. FIGURE 5: U-TUBE, STANDARD REFLECTOR (inches) (centimeters) A B D C Model A B C D A B C D CTH CTH CTH CTH FIGURE 6: U-TUBE, 45 A B D C (inches) (centimeters) Model A B C D A B C D CTH CTH CTH CTH FIGURE 7: U-TUBE, OPPOSITE 45 REFLECTOR (inches) (centimeters) A B D C Model A B C D A B C D CTH CTH CTH CTH

12 CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL NOTE: 1. All dimensions are from the surfaces of all tues, couplings and elows. 2. Clearances B, C and D can e reduced y 50% after 25' (7.5 m) of tuing downstream from where the urner and urner tue connect. FIGURE 8: 2-FOOT DECO GRILLE, 1-FOOT DECO GRILLE AND PROTECTIVE GRILLE (inches) (centimeters) A C B D Model A B C D A B C D CTH CTH CTH CTH FIGURE 9: LOWER CLEARANCE SHIELD* (inches) (centimeters) A C B D Model A B C D A B C D CTH CTH CTH CTH UNAPPROVED - - UNAPPROVED - *When installed in the first 10 (3 m). FIGURE 10: VENTING Unvented Radiant Tues Vented A E Vent Pipes F (inches) (centimeters) Model A E F A E F CTH CTH CTH CTH

13 SECTION 4: NATIONAL STANDARDS AND APPLICABLE CODES SECTION 4: NATIONAL STANDARDS AND APPLICABLE CODES 4.1 Gas Codes The type of gas appearing on the nameplate must e the type of gas used. Installation must comply with national and local codes and requirements of the local gas company. United States: Refer to National Fuel Gas Code, ANSI Z latest revision (same as NFPA 54). Canada: Refer to CAN/CGA B149.1 and B149.2: Installation Codes for Gas Burning Appliances. 4.2 Aircraft Hangars Installation in aircraft hangars must e in accordance with the following codes: United States: Refer to Standard for Aircraft Hangars, ANSI/NFPA latest revision. Canada: Refer to Standard CAN/CGA B149.1 and B In aircraft storage and servicing areas, heaters shall e installed at least 10' (3 m) aove the upper surface of wings or of engine enclosures of the highest aircraft which may e housed in the hangar. The measurement shall e made from the wing or engine enclosure (whichever is higher from the floor) to the ottom of the heater. In shops, offices and other sections of aircraft hangars communicating with aircraft storage or servicing areas, heaters shall e installed not less than 8' (2.4 m) aove the floor. Suspended or elevated heaters shall e so located in all spaces of aircraft hangars that they shall not e suject to injury y aircraft, cranes, movale scaffolding or other ojects. Provisions shall e made to assure accessiility to suspended heaters for recurrent maintenance purposes. 4.3 Pulic Garages Installation in garages must e in accordance with the following codes: United States: Standard for Parking Structures NFPA 88A - latest revision or the Code for Motor Fuel Dispensing Facilities and Repair Garages, NFPA 30A - latest revision. Canada: Refer to CAN/CGA B149.1 and B149.2: Installation Codes for Gas Burning Appliances. Heaters must not e installed less than 8' (2.4 m) aove the floor. Minimum clearances to comustiles must e maintained from vehicles parked elow the heater. When installed over hoists, minimum clearances to comustiles must e maintained from the upper most point of ojects on the hoist. 4.4 Electrical The heater must e electrically grounded in accordance with the following codes: United States: Refer to National Electrical Code, ANSI/NFPA 70 - latest revision. Wiring must conform to the most current National Electrical Code, local ordinances and any special diagrams furnished. Canada: Refer to Canadian Electrical Code, CSA C22.1 Part 1 - latest revision. 4.5 Venting The venting must e installed in accordance with the requirements within this manual and the following codes: United States: Refer to NFPA 54/ANSI Z latest revision, National Fuel Gas Code. Canada: Refer to CAN/CGA B149.1 and B149.2: Installation Codes for Gas Burning Appliances 4.6 High Altitude These heaters are approved for installations up to 2000' (US), 4500' (Canada) without modification. Consult factory if US installation is aove 2000' (610 m) or Canadian installation is aove 4500' (1370 m). 7

14 CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL SECTION 5: MAJOR COMPONENTS FIGURE 11: Major Component Descriptions Burner with Tue Gasket Must e installed with the flame oservation window facing down. (Aluminum or Stainless Steel) Alternate overlap as shown on overview and on Page 12, Figure 14. Minimum overlap is 6 (16 cm). Burner Tue Supplied in 10' (3 m) lengths. Burner tue is always the first tue after the urner. Tue Heat Treated Aluminized Tue supplied in 10 (3 m) lengths. Tue and Hanger with Clamp Package Position this hanger no more than 4 (10 cm) away from the urner. Tue and Hanger Suspend system from these hangers. Coupling Assemly with Lock End Cap Punch out center section to accommodate tue. Vent Adapter Support Strap & Wire Form Flex Gas Line with Shut Off Cock Turulator Turulator must e installed in the last standard section of tue. Turulator is not required on the CTH For installation see Page 15, Section

15 SECTION 5: MAJOR COMPONENTS 5.1 Standard Parts List Tale 1: Contents of Burner Carton Part No. Description CTH3-80 CTH3-115 CTH3-150 CTH XXXXX Burner Assemly (Rate and Fuel Varies) Gasket (Burner to Burner Tue) NA Installation, Operation and Service Manual Hex Head Bolts 5/16-18 Rolok Split Lock Washer Pipe Nipple (Black) 1/2 NPT x * Flexile Stainless Steel Gas Hose - 1/2" NPT (US Models Only) * Flexile Stainless Steel Gas Hose - 3/4" NPT (US Models Only) Turulator Adapter Turulator 2.5' (76 cm), Aluminized Steel Wire Terminal Receptacle.187 x Cale Grommet with Tie *Canadian Models: Ruer (Type 1) Gas Hoses availale as an accessory. See Page 36, Section 9. Tale 2: Contents of Core and Extension Packages Core Packages (Aluminized) Extension Packages (Aluminized) Part No. Description 10' (3m) 20' (6m) 30' (9m) 40' (12m) 10' (3m) 20' (6m) 30' (9m) 40' (12m) Tue, HT Aluminized, 10' (3m) Burner Tue, ALUMI-THERM Steel, 10' (3m) Burner Tue, HT ALUMI-THERM Steel, 10' (3m) Coupling Assemly Standard, 8' (3.5m) End Cap Tue and Hanger S-Hook Support Package (Strap, Wire Form, Screws) U-Clip Package Vent Adapter Tue Clamp Package Part Numer CP10ALUM CP20ALUM CP30ALUM CP40ALUM EXP10ALUM EXP20ALUM EXP30ALUM EXP40ALUM Tale 3: CTH3-Series Component Package Guide Model Tuing Length Core Packages Minimum Aluminized CTH ' (6m) CP20ALUM CTH ' (9m) CP30ALUM CTH ' (12m) CP40ALUM CTH ' (15m) CP30ALUM + EXP20ALUM Additional tuing length may e added to heater. Tuing must e heat-treated, aluminized or porcelain coated. Any additional tuing lengths are considered as vent length for length determination. Maximum venting length for minimum heater length is 45' (13.7 m). 9

16 CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL SECTION 6: HEATER INSTALLATION WARNING Suspension Hazard Burner is secured to urner tue y olts and lockwashers. Hang heater with materials with a minimum working load of 75 ls (33 kg). Failure of the supports can result in death, injury or property damage. To ensure your safety, and comply with the terms of the warranty, all units must e installed in accordance with these instructions. The gas or the electrical supply lines must not e used to support the heater. FIGURE 12: Critical Hanger Placement Do not locate the gas or electric supply lines directly over the path of the flue products from the heater. The heater must e installed in a location that it is readily accessile for servicing. The heater must e installed in accordance with clearances to comustiles as indicated on the heater and in this instruction manual. The gas inlet pressure must e maintained as indicated on the rating plate. Typical installation configurations are shown in Figure 12. Expansion and contraction of the tue dictates that the minimum suspension lengths in the tale on Page 10, Figure 12 e maintained. Description Part Numer S-Hook Tue/ Hanger Run Length Typical Expansion Minimum X Length ±1 (3 cm) ±2 (5 cm) ±3 (8 cm) 24 10

17 SECTION 6: HEATER INSTALLATION FIGURE 13: Linear Heater Assemly Overview End Cap Burner Tue Clamp Package Burner Tue Tue and Hanger Coupling Support Tue Turulator (With Select Models) Vent Adapter U-Clips 11

18 CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL FIGURE 14: Linear Heater Layout Overview LEGEND Burner g c d e f Tue 20' Tue Length Tue/ Hanger Coupling Assemly g c d e e Vent Adapter f a = 14" (36 cm) reflector width (not shown) = 2" (5 cm) end cap to urner g c 30' Tue Length d e e e c = 2" (5 cm) end cap to hanger f d = 7'6" (229 cm) distance first hanger e = 10' (305 cm) distance etween hangers g c 40' Tue Length d e e e e f = 9.5" (24 cm) urner height g = 17.5" (44 cm) urner length f 50' Tue Length g c d e e e e e g f c 60' Tue Length d e e e e e e f 70' Tue Length g c d e e e e e e e f 80' Tue Length 12

19 SECTION 6: HEATER INSTALLATION Step 6.1 Burner Tue Installation NOTE: Tuing requires a downward slope of 1/2" (13 mm) per 20' (6 m) away from urner. 7' 6" ± 1' (229 cm ± 25 cm) Description Part Numer Burner Tue 03051XXX S-Hook Tue/ Hanger Step 6.2 Tue Clamp Package Installation Description Part Numer Tue Clamp Package Tue Clamp Bolt Flat Washer Nut Tue Clamp Flat Washer Bolt Nut (torque 120 in/l Nm) 13

20 CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL Step 6.3 Coupling and Tue Assemly A Close coupling with ta. Ta B Start Slide ar/coupling Lock. Slide Bar/Coupling Lock Open 3" (8 cm) to 4" (10 cm) Wide end Coupling C Closed Insert tues into coupling. D Tighten coupling to join tues. Tue Orient coupling so that the impact lock is in the 2:00 or 10:00 o clock positions Tue Tue Description Part Numer Coupling Slide ar/coupling Lock Tue 91409XXX Slide Bar/Coupling Lock Coupling Step Coupling and Tue Assemly (Continued) Tighten slide ar as shown elow. Drive Slide Bar until tight. End of Slide Bar should e within tolerance listed elow. Correct Slide Bar dimensions ± 2" (5 cm) Incorrect Slide Bar position Repeat Step 6.3 A - D until all tues are assemled. See Page 15, Section

21 SECTION 6: HEATER INSTALLATION Step Coupling and Tue Assemly (Continued) Tue Length Model Minimum CTH (6 m) CTH (9 m) CTH (12 m) CTH (15 m) 7' 6" ± 1' (229 cm ± 25 cm) 10' ± 1' (305 cm ± 25 cm) Total Overall Tue Length Step 6.4 Turulator Installation Turulator must e installed in the last standard section of tue. Turulator is not required on the CTH Turulator 2.5' Section Turulator Adapter Ta Twist Turulator Installation CTH3-80 2nd 10' Section CTH rd 10' Section CTH th 10' Section CTH3-200 N/A Description Part Numer Turulator Adapter Turulator Section 2.5' Tue 91409XXX Pull String Fold ta around outside of tue nearest to the vent to hold turulator in place. Where a vent sleeve is used, do not fold ta. 15

22 CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL Step 6.5 Installation NOTE: All tue surfaces must e covered y a reflector, except for a U-Tue. Hanger Burner Tue Description Part Numer Tue/ Hanger Burner Tue 03051XXX

23 SECTION 6: HEATER INSTALLATION Step 6.5.1, U-Clip and Support Installation The pictorial drawings of the heater construction in reflector supports and U-clips depends on the Section 6 are schematic only and provide a general individual installation. Use either pop rivets or sheet guideline of where hangers, reflector supports and metal screws instead of u-clips when installing end U-clips are to e installed. caps and joint pieces in areas where impact and high wind may e a factor. The following rules must e To ensure proper expansion and contraction movement of the reflectors, a comination of U-clips oserved. and reflector supports are used. The positioning of Step The first reflector after the urner must e affixed in the middle of the reflector with a reflector support and tight screws. Tight Sheet Metal Screw Wire Form End Cap First Support Strap U-Clips Overlap must e a minimum of 6" (16 cm). 2B Slip Overlap 6" (16 cm) 2. The overlap at the first and second reflector is a slip overlap. Thereafter, every third reflector joint is a slip overlap. A slip overlap is achieved y either: a.) oth reflectors lay inside a hanger. (No reflector support needed)..) using a reflector support with loose screws at the reflector overlap. Loose screws loosened 1/16" (2 mm) to allow slippage. 2A Slip Overlap 3A Non-Slip Overlap 3. The remaining reflector overlaps require a non-slip overlap connection. To affix the reflectors together in a non-slip overlap either: a.) use reflector support and tight screws..) if oth reflectors lay inside a hanger, u-clips or sheet metal screws may e used. This section of three reflectors joined together must e affixed to the tue with at least one reflector support with tight screws. Description Support Package Wire Form Support Strap Screw #8 x 3/4 U-Clip Package End Cap Part Numer XX Support Tight screws 3B Non-Slip Overlap U-Clip (2 clips per non-slip overlap inside a hanger) 17

24 CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL Step 6.6 Burner Installation Burner Gasket S-Hook Burner Tue Burner must e installed with the flame oservation window facing down. Description Part Numer Bolt Burner 034XXXXX Lock Washer Gasket Lock Washer Bolt (Torque 120 in/l Nm) 18

25 SECTION 7: OPTIONAL HEATER ACCESSORIES SECTION 7: OPTIONAL HEATER ACCESSORIES 7.1 U-Tue Configuration Heaters are approved for optional U-Tue configurations. The U-Tue may e installed in either a standard horizontal position, a 45 position or in an opposite 45 position as shown on Page 5, Figure 5 through Figure 7. When using a U-Tue configuration, the following additional rules must e adhered to: FIGURE 15: U-Tue Heater Assemly Overview A minimum of 10' (3 m) on CTH3-80 and a minimum of 15' (4.5 m) on CTH3-115/150/200 is required etween the urner and the U-Tue. The correct turulator (See Page 15, Figure 6.4) must e installed in the last standard section of tue. The urner must never e operated in a tilted position. The heater must e properly supported at all locations. See Page 20, Figure 16. U-Tue Support Bracket Support Burner Tue Clamp Package Burner Tue (Turulator With Select Models) Tue U-Tue, Standard 1 2 U-Tue, U-Tue, Opposite Tight U-Bolt 4" (10 cm) U-Bolt, secured to Burner Tue with 1/4" (6 mm) Lockwashers and 1/4-20 Hex Nuts Couplings Loose U-Bolt 4" (10 cm) U-Bolt, secured to Bracket with 1/4" (6 mm) Lockwashers and 1/4-20 Hex Nuts on top and ottom to allow for tue expansion and contraction U-Bolt Nut Lock Washer Lock Washer Nut U-Clips End Caps U-Tue 18" (457 mm) Center to Center 19

26 CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL FIGURE 16: U-Tue Heater Layout Overviews LEGEND g c e Burner Tue 10' Tue 5' ** h g c 20' Tue Length* d f Tue/ Hanger Coupling Assemly U-Tue a = 14" (36 cm) reflector width (not shown) h g 30' Tue Length ** c d e = 2" (5 cm) end cap to urner c = 2" (5 cm) end cap to hanger d = 7'6" (229 cm) distance first hanger h g 40' Tue Length c d e f e = 10' (305 cm) distance etween hangers f = 5' (153 cm) distance etween last full tue hanger and half tue hanger h g c 50' Tue Length* ** d e e g = 17.5" (44 cm) urner length h = 9.5" (24 cm) urner height *Requires the last reflector efore the U-Tue to e cut in half for use on oth sides. h g c 60' Tue Length d e e f **Requires the last tue efore the U-Tue to e cut in half for use on oth sides. h 70' Tue Length** g c d e e e h 80' Tue Length 20

27 SECTION 7: OPTIONAL HEATER ACCESSORIES 7.2 Elow Package Configuration Step Elow Installation Tue Coupling Description Part Numer Elow Package Elow Coupling End Cap Joint Piece U-Clip Package Step Elow Installation 90 Elow Minimum Distance Required Between Burner and Elow Minimum Model Distance CTH ' (3m) CTH3-115 CTH ' (4.5m) CTH3-200 Tue Coupling Step Joint Installation Joint Scrie Contour Flatten Edge 1" (2.5 cm) Maximum 21

28 CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL Step Joint Installation Cut away contour with tin snips. Punch/drill six 3/32" (2 mm) holes. Step Joint Detail Install reflector end cap. Attach reflector joint with six #8 sheet metal screws. FIGURE 17: Joint Detail Joint 22