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Quality in Any Language™
© Copyright 2006 Roberts-Gordon, LLC
Negative Pressure
Unitary or Multiburner
Infrared Heater
Service Manual
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.
Keep this manual in a safe place in order to provide
your serviceman with necessary information.
Roberts-Gordon, LLC
1250 William Street
P.O. Box 44
Buffalo, New York 14240-0044
Telephone: 716.852.4400
Fax: 716.852.0854
Toll Free: 800.828.7450
www.rg-inc.com
®
Installation,
Operation &
CTHN-40
CTHN-60
CTHN-80
CTHN-100
CTHN-125
CTHN-150
CTHN-175
CTHN-200
Owner
P/N 152101NA Rev A 10/06
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Table of Contents
Related Manuals for Roberts Gorden VANTAGE NP CTHN-125
Summary of Contents for Roberts Gorden VANTAGE NP CTHN-125
- Page 1 Quality in Any Language™ © Copyright 2006 Roberts-Gordon, LLC Negative Pressure Unitary or Multiburner Infrared Heater Installation, Operation & Service Manual 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.
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Page 3: Table Of Contents
TABLE OF CONTENTS SECTION 1: Heater Safety... 1 1.1 Manpower Requirements ... 1 SECTION 2: Installer Responsibility ... 2 2.1 Wall Tag ... 2 2.2 Corrosive Chemicals... 2 2.3 National Standards and Applicable Codes ... 2 SECTION 3: Critical Considerations... 3 3.1 Required Clearances to Combustibles... - Page 5 TABLE OF FIGURES Figure 1: Standard Reflector ... 3 Figure 2: One Side Reflector... 4 Figure 3: Two Side Reflectors ... 4 Figure 4: 45° Tilt Reflector ... 4 Figure 5: U-Tube, Standard Reflector... 5 Figure 6: U-Tube, 45° ... 5 Figure 7: U-Tube, Opposite 45°...
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Page 7: Section 1: Heater Safety
SECTION 1: HEATER SAFETY Your Safety is Important to Us! This symbol is used throughout the manual to notify you of possible fire, electrical or burn hazards. Please pay special attention when reading and following the warnings in these sections. Installation, service and annual inspection of heater must be done by a contractor qualified in the installation and service of gas-fired heating... -
Page 8: Section 2: Installer Responsibility
CTHN-S ERIES NSTALLATION PERATION AND ERVICE SECTION 2: INSTALLER RESPONSIBILITY The installer is responsible for the following: • To install the heater, as well as the gas and electrical supplies, in accordance with applicable specifications and codes. Roberts-Gordon recommends the installer contact a local Building Inspector or Fire Marshal for guidance. -
Page 9: Section 3: Critical Considerations
SECTION 3: CRITICAL CONSIDERATIONS 3.1 Required Clearances to Combustibles Clearances are the required distances that combustible objects must be away from the heater to prevent fire hazards. Combustible materials that may catch fire include common items such as wood, paper, rubber, fabric, etc. Maintain clearances to combustibles at all times for safety. -
Page 10: Figure 2: One Side Reflector
CTHN-S ERIES NSTALLATION PERATION AND ERVICE NOTE: 1. All dimensions are from the surfaces of all tubes, couplings and elbows. 2. Clearances B, C and D can be reduced by 50% after 25' (7.5 m) of tubing downstream from where the burner and burner tube connect. FIGURE 2: ONE SIDE REFLECTOR FIGURE 3: TWO SIDE REFLECTORS °... -
Page 11: Figure 5: U-Tube, Standard Reflector
NOTE: 1. All dimensions are from the surfaces of all tubes, couplings and elbows. 2. Clearances B, C and D can be reduced by 50% after 25' (7.5 m) of tubing downstream from where the burner and burner tube connect. FIGURE 5: U-TUBE, STANDARD REFLECTOR °... -
Page 12: Figure 8: 2-Foot Deco Grille, 1-Foot Deco Grille And Protective Grille
CTHN-S ERIES NSTALLATION PERATION AND ERVICE NOTE: 1. All dimensions are from the surfaces of all tubes, couplings and elbows. 2. Clearances B, C and D can be reduced by 50% after 25' (7.5 m) of tubing downstream from where the burner and burner tube connect. FIGURE 8: 2-FOOT DECO GRILLE, 1-FOOT DECO GRILLE AND PROTECTIVE GRILLE FIGURE 9: LOWER CLEARANCE SHIELD* *When installed in the first 10' (3 m). -
Page 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 be 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 Z223.1 - latest revision (same as NFPA 54). -
Page 14: Section 5: Heater Descriptions
CTHN-S ERIES NSTALLATION PERATION AND ERVICE ANUAL SECTION 5: HEATER DESCRIPTIONS 5.1 Unitary vs. Multiburner CTHN-Series burners may be used for unitary heaters or for multiburner systems. Unitary heaters consist of a single burner, a single run of radiant tubing and a single fan assembly. See Page 14, Figure 13 or See Page 17 , Figure 16 for details. -
Page 15: Section 6: Major Components
SECTION 6: MAJOR COMPONENTS FIGURE 11: Major Component Descriptions Burner with Tube Gasket Must be installed with the flame observation window facing down. Reflector (Aluminum or Stainless Steel) Alternate overlap as shown on Page 15, Figure 14 or on Page 18, Figure 17. Minimum overlap is 6'' (16 cm). -
Page 16: Section 7: General Suspension Details
CTHN-S ERIES NSTALLATION PERATION AND ERVICE SECTION 7: GENERAL SUSPENSION DETAILS To ensure your safety and comply with the terms of the warranty, all units must be installed in accordance with these instructions. FIGURE 12: Critical Hanger Placement Description Part Number S-Hook 91907302 Tube/Reflector Hanger... -
Page 17: Section 8: Unitary Linear & U-Tube Heater Installation
SECTION 8: UNITARY LINEAR & U-TUBE HEATER INSTALLATION 8.1 Standard Parts Table 1: Contents of CTHN Burner Carton Part No. Description 052XXXXX Burner (Rate and Fuel Varies) 07730400 Restrictor Plate 1.25'' (3.2 cm) dia. 07730100 Restrictor Plate 1.50'' (3.8 cm) dia. 07730500 Restrictor Plate 2.25'' (5.7 cm) dia. - Page 18 CTHN-S ERIES NSTALLATION PERATION AND ERVICE Table 3: Component Package Guide Tubing Length Model Minimum CTHN-40 10' (3 m) CTHN-60 20' (6 m) CTHN-80 20' (6 m) CTHN-100 30' (9 m) CTHN-125 40' (12 m) CTHN-150 40' (12 m) CTHN-175 50' (15 m) CTHN-200 50' (15 m)
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Page 19: Unitary Heater Requirements
Deco Grille (1' x 8' [.3 m x 2.4 m]) 01363003 Bracket 01365901 End Piece 01326801 Reinforcement 01365903 Joint Piece 91406700 1' x 8' (.3 m x 2.4 m) Protective Grille Deco Grille (2' x 4' [.6 m x 1.2 m]) 01365900 Shield Frame 01370408... -
Page 20: Unitary Linear Heater Layouts
CTHN-S ERIES NSTALLATION PERATION AND ERVICE ANUAL 8.3 Unitary Linear Heater Layouts FIGURE 13: Linear Heater Assembly Overview... -
Page 21: Figure 14: Unitary Linear Layout Overviews
SECTION 8: U & U-T NITARY INEAR EATER NSTALLATION FIGURE 14: Unitary Linear Layout Overviews... -
Page 22: Figure 15: Unitary Linear Layout Overviews (Continued)
CTHN-S ERIES NSTALLATION PERATION AND ERVICE ANUAL FIGURE 15: Unitary Linear Layout Overviews (Continued) -
Page 23: Unitary U-Tube Heater Layouts
8.4 Unitary U-tube Heater Layouts CTHN-Series heaters (except CTHN-40) are approved for optional u-tube configurations. The u-tube may be installed in either a standard horizontal position, 45° position or in an opposite 45° position as shown on Page 5, Figure 5 through Figure 7. -
Page 24: Figure 17: Unitary U-Tube Layout Overviews
CTHN-S ERIES NSTALLATION PERATION AND ERVICE ANUAL FIGURE 17: Unitary U-tube Layout Overviews... -
Page 25: Burner Tube Installation
Step 8.5 Burner Tube Installation Description Part Number Burner Tube 03051XXX S-hook Tube/Reflector Hanger Step 8.6 Tube Clamp Package Installation Description Part Number Tube Clamp Package 01318901 Tube Clamp 01396801 Bolt 97113940 Flat Washer 95211600 92113900 91907302 03090100 SECTION 8: U &... -
Page 26: Coupling And Tube Assembly
CTHN-S ERIES NSTALLATION PERATION AND ERVICE Step 8.7 Coupling and Tube Assembly Close coupling with tab. Insert tubes into coupling. Step 8.7.1 Coupling and Tube Assembly (Continued) Tighten slide bar as shown below. • Repeat Step 8.7, A - D until all tubes are assembled. See Page 21, Step 8.7 .2. NOTE: If coupling is not tight, loss of vacuum can occur. -
Page 27: Turbulator Installation
Step 8.7.2 Coupling and Tube Assembly (Continued) 2.3 m .25 m Step 8.8 Turbulator Installation Turbulator section (stainless) used in CTHN-40 heaters must be in the section of tube nearest to the burner. Description Part Number Turbulator Adapter 03051503 Turbulator Section 03051504 Turbulator Section (Stainless) 03051505... -
Page 28: Reflector Installation
CTHN-S ERIES NSTALLATION PERATION AND ERVICE Step 8.9 Reflector Installation Description Part Number Tube/Reflector Hanger Burner Tube Reflector ANUAL 03090100 03051XXX 02750303 NOTE: All radiant tube surfaces must be covered by a reflector, except for a u-tube. Manifold tube may or may not be covered. - Page 29 Step 8.9.1 Reflector, U-clip and Reflector Support Installation The pictorial drawings of the heater construction in Section 8 are schematic only and provide a general guideline of where hangers, reflector supports and u-clips are to be installed. To ensure proper expansion and contraction movement of the reflectors, a combination of u-clips and reflector supports are used.
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Page 30: Burner Installation
CTHN-S ERIES NSTALLATION PERATION AND ERVICE Step 8.10 Burner Installation Description Part Number Bolt Burner 052XXXXX Lock Washer Gasket Step 8.11 Fan Inlet Plate and Warning Tag ANUAL 94273914 96411600 02568200 Remove the warning tag and inlet collar from fan inlet. -
Page 31: Restrictor Plate Installation
Step 8.12 Restrictor Plate Installation Attach restrictor plate (see chart below right) to fan inlet and replace inlet collar. Description Part Number Restrictor Plate 07730XXX Step 8.13 Fan Installation Turbulator not required for all models. (See Page 21, Step 8.8 for details.) Description Part Number Fan Assembly 40 -150... -
Page 32: Section 9: Multiburner Heater Installation
CTHN-S ERIES NSTALLATION PERATION AND ERVICE SECTION 9: MULTIBURNER HEATER INSTALLATION 9.1 Standard Parts Table 6: Contents of CTHN Burner Carton Part No. Description 052XXXXX Burner (Rate and Fuel Varies) 07730400 Restrictor Plate 1.25'' (3.2 cm) dia. 07730100 Restrictor Plate 1.50'' (3.8 cm) dia. 07730500 Restrictor Plate 2.25'' (5.7 cm) dia. - Page 33 Table 8: Component Package Guide Tubing Length Model Minimum CTHN-40 20' (6 m) CTHN-60 30' (9 m) CTHN-80 30' (9 m) CTHN-100 40' (12 m) CTHN-125 50' (15 m) CTHN-150 50' (15 m) CTHN-175 60' (18 m) CTHN-200 60' (18 m) Additional tubing length may be added to heater.
- Page 34 CTHN-S ERIES NSTALLATION PERATION AND ERVICE 01326801 Reinforcement 01365903 Joint Piece 91406700 1' x 8' (.3 m x 2.4 m) Protective Grille Deco Grille (2' x 4' [.6 m x 1.2 m]) 01365900 Shield Frame 01370408 Reflector Side Extension 8" x 48" (20 cm x 122 cm) 01370412 Reflector Side Extension 12"...
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Page 35: Multiburner System Design Requirements
9.2 Multiburner System Design Requirements A CTHN multiburner system has a number of radiant tube sections interconnected by manifold tube to a pump to form a complete system. Reflectors can be used over the manifold tube but are not required. The system design parameters are such that the manifold sections are not subjected to condensate when the system is fully heated up. -
Page 36: Burners Per Pump
CTHN-S ERIES NSTALLATION PERATION AND ERVICE Table 10: Multiburner Design Requirements Burner Model: CTHN-40 CTHN-60 CTHN-80 CTHN-100 CTHN-125 CTHN-150 CTHN-175 CTHN-200 Radiant Tube Length Minimum Manifold Tube Length per Burner Maximum Manifold Tube Length per Burner Minimum Distance from Burner to Elbow or U-tube Elbows Allowed per Burner* * U-tube = 2 elbows... -
Page 37: Radiant Tube Length
9.4 Radiant Tube Length The radiant tube length fixed for each burner is shown on Page 30, Table 10. 9.5 Manifold Tube Any tube beyond the radiant tube length is considered manifold. Manifold tube can be used to lengthen tube runs beyond the radiant tube length; to connect multiple runs of tubing and connect the system to the pump. -
Page 38: Figure 19: Flag Layout
CTHN-S ERIES NSTALLATION PERATION AND ERVICE FIGURE 19: Flag Layout Multiple rows of burners: pump placed at the end of the manifold tube. ANUAL FIGURE 20: Modified In-Series Layout Multiple burners: pump placed at the end of the manifold tube. A variation on the flag layout. -
Page 39: Figure 21: T Layout
9.6.2 T and Fork Layouts and Manifold Tube Length Rules See Page 33, Figure 21 through Page 34, Figure 22 for diagrams of T and Fork layouts. The T and Fork layouts have a tee or cross (called the "last tee" or "last cross") where the combustion gases in the system enter the tee or cross with directly opposing flow directions, which creates an added source of... -
Page 40: Figure 22: Fork Layout
CTHN-S ERIES NSTALLATION PERATION AND ERVICE FIGURE 22: Fork Layout Multiple rows of burners: Manifold tube between the last tee or cross and the pump is perpendicular to the manifold tube joining the rows. Pump is not required to be placed in the center of the system (as shown). -
Page 41: Figure 23: Herringbone Layout
9.6.3 Herringbone Layout and Manifold Tube Length Rules The herringbone layout is essentially several T layouts stacked together. Therefore, the same principle for manifold tube calculation as used for T layouts is used for herringbone layouts, with one exception. In a herringbone layout, the manifold tube length between tees (or crosses) as well as between the last tee (or cross) and the pump is calculated by dividing by 1.5 as shown in the T... -
Page 42: Burner Tube Installation
CTHN-S ERIES NSTALLATION PERATION AND ERVICE Step 9.7 Burner Tube Installation Description Part Number Burner Tube 03051XXX S-Hook Tube/Reflector Hanger Step 9.8 Tube Clamp Package Installation Description Part Number Tube Clamp Package 01318901 Tube Clamp 01396801 Bolt 97113940 Flat Washer 95211600 92113900 ANUAL... -
Page 43: Coupling And Tube Assembly
Step 9.9 Coupling and Tube Assembly Close coupling with tab. Insert tubes into coupling. Step 9.9.1 Coupling and Tube Assembly (Continued) Tighten slide bar as shown below. • Repeat Step 9.9 on Page 37, A - D until all tubes are assembled. See Page 38, Step 9.9.2. NOTE: If coupling is not tight, loss of vacuum can occur. -
Page 44: Turbulator Installation
CTHN-S ERIES NSTALLATION PERATION AND ERVICE Step 9.9.2 Coupling and Tube Assembly (Continued) 2.3 m .25 m Step 9.10 Turbulator Installation Turbulator section (stainless) used in CTHN-40 heaters must be in the section of tube nearest to the burner. Description Turbulator Adapter Turbulator Section Turbulator Section (Stainless) -
Page 45: Reflector Installation
Step 9.11 Reflector Installation Description Part Number Tube/Reflector Hanger Burner Tube 03051XXX Reflector 03090100 02750303 SECTION 9: M ULTIBURNER EATER NSTALLATION NOTE: All radiant tube surfaces must be covered by a reflector, except for a u-tube. Manifold tube may or may not be covered. - Page 46 CTHN-S ERIES NSTALLATION PERATION AND ERVICE Step 9.11.1 Reflector, U-clip and Reflector Support Installation The pictorial drawings of the heater construction in Section 9 are schematic only and provide a general guideline of where hangers, reflector supports and u-clips are to be installed. To ensure proper expansion and contraction movement of the reflectors, a combination of u-clips and reflector supports are used.
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Page 47: Burner Installation
Step 9.12 Burner Installation Description Part Number Bolt Burner 052XXXXX Lock Washer Gasket 94273914 96411600 02568200 SECTION 9: M ULTIBURNER EATER NSTALLATION... -
Page 48: Section 10: Optional Heater Accessories
CTHN-S ERIES NSTALLATION PERATION AND ERVICE SECTION 10: OPTIONAL HEATER ACCESSORIES 10.1 Elbow Package Configuration Step 10.1.1 Elbow Installation Description Part Number Elbow Package 02718702 90° Elbow 01335801 Coupling 01312700 Reflector End Cap 02750800 Reflector Joint Piece 02750900 U-Clip Package 91107720 Step 10.1.2 Elbow Installation Step 10.1.3 Reflector Joint Installation...
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