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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 building.
5. Extinguish any open flame.
6. Leave the building.
7. Immediately call your local gas
supplier after leaving the building.
Follow the gas supplier's
instructions.
8. If you cannot reach your gas
supplier, call the Fire Department.
WARNING
Fire Hazard
Keep all flammable objects, liquids and
vapors the minimum required clear-
ances to combustibles away from
heater.
Some objects will catch fire or explode
when placed close to heater.
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 before installing or
servicing this equipment.
Installation must be done by a contractor qualified
in the installation and service of gas-fired heating
equipment or your gas supplier.
© 2016 Roberts-Gordon LLC
Model AG
Gas Fired, Low Intensity
Unitary Heater
Installation, Operation &
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 service technician with necessary information.
Roberts-Gordon LLC
1250 William Street
P.O. Box 44
Buffalo, New York 14240-0044
Telephone: +1.716.852.4400
Fax: +1.716.852.0854
Toll Free: 800.828.7450
www.robertsgordon.com
Service Manual
AG-40
AG-60
AG-80
AG-100
AG-125
AG-150
AG-175
Installer
Owner
P/N ETAG36100NA Rev A 11/16
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Summary of Contents for Roberts Gorden ENERGYTUBE AG Series
- Page 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 Model AG your building. 5. Extinguish any open flame. 6.
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Page 3: Table Of Contents
TABLE OF CONTENTS SECTION 1: Heater Safety............1 10.4 Internal Wiring............45 1.1 Manpower Requirements ..........1 10.5 Ladder Diagram ............46 1.2 Safety Labels and Their Placement ......1 10.6 Electrical Connection to the Burner ......46 1.3 California Proposition 65 ..........1 SECTION 11: Operation and Maintenance...... - Page 5 TABLE OF FIGURES Figure 1: Top and Bottom Panel Label Placement ....2 Figure 2: Side and Back Panel Label Placement ...... 3 Figure 13: Major Component Descriptions - Standard Reflector ..........11 Figure 14: Major Component Descriptions - High Efficiency Reflector..............
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Page 7: Section 1: Heater Safety
SECTION 1: H EATER AFETY SECTION 1: HEATER SAFETY For additional copies of the Installation, Operation and Service Manual, please contact Roberts-Gordon Your Safety is Important to Us! LLC. This symbol is used throughout the manual to notify you of 1.1 Manpower Requirements possible fire, electrical or burn hazards. -
Page 8: Figure 1: Top And Bottom Panel Label Placement
AG-S ERIES NSTALLATION PERATION AND ERVICE ANUAL FIGURE 1: Top and Bottom Panel Label Placement Description Part Number Logo Label 91031113 Vent Length Label 91039500 Gas Connection Label 91018122 Burner Status Light Label 91033301 2 of 57... -
Page 9: Figure 2: Side And Back Panel Label Placement
SECTION 1: H EATER AFETY FIGURE 2: Side and Back Panel Label Placement Description Part Number Rating Plate Label 91010401 Lighting Instruction Plate Label 91029602 Wiring Label 91030308 Clearances to Combustibles Label 91013428 Proposition 65 Label 91070016 Thermostat Connection Label 91037902 3 of 57... -
Page 10: Section 2: Installer Responsibility
AG-S ERIES NSTALLATION PERATION AND ERVICE ANUAL SECTION 2: INSTALLER RESPONSIBILITY permanent ink according to your model number and configuration in the open spaces on the tag. The installer is responsible for the following: • To install the heater, as well as the gas and 2.2 Corrosive Chemicals electrical supplies, in accordance with applicable specifications and codes. -
Page 11: Section 3: Clearances To Combustibles
SECTION 3: C LEARANCES TO OMBUSTIBLES SECTION 3: CLEARANCES TO COMBUSTIBLES WARNING 3.1 Required Clearances to Combustibles Clearances are the required distances that combustible objects must be away from the heater to prevent serious fire hazards. Combustibles are materials that may catch on fire and include common items such as wood, paper, rubber, fabric, etc. - Page 12 AG-S ERIES NSTALLATION PERATION AND ERVICE ANUAL 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 3: LEVEL REFLECTOR (inches) (centimeters)
- Page 13 SECTION 3: C LEARANCES TO OMBUSTIBLES 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. °...
- Page 14 AG-S ERIES NSTALLATION PERATION AND ERVICE ANUAL 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. °...
- Page 15 SECTION 3: C LEARANCES TO OMBUSTIBLES 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 12: VENTING (inches) (centimeters)
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Page 16: Section 4: National Standards And Applicable Codes
AG-S ERIES NSTALLATION PERATION AND ERVICE ANUAL SECTION 4: NATIONAL STANDARDS AND APPLICABLE CODES 4.1 Gas Codes 4.3 Public Garages Type of gas appearing on the nameplate must be Installation in garages must be in accordance the type of gas used. Installation must comply with the following codes: with national and local codes and requirements United States: Refer to Standard for Parking... -
Page 17: Section 5: Major Components
SECTION 5: M AJOR OMPONENTS SECTION 5: MAJOR COMPONENTS FIGURE 13: Major Component Descriptions - Standard Reflector Burner with Tube Standard Gasket Reflector Must be installed with (Aluminum or the flame observation Stainless window facing down. Steel) Alternate overlap as shown on overview and on Page 19, Figure 17. -
Page 18: Figure 14: Major Component Descriptions - High Efficiency Reflector
AG-S ERIES NSTALLATION PERATION AND ERVICE ANUAL FIGURE 14: Major Component Descriptions - High Efficiency Reflector High Efficiency Reflector Burner with Tube (Aluminum or Stainless Steel) Gasket Alternate Must be installed with the flame observation overlap as shown on window facing down. overview and Page 19, Figure 17. -
Page 19: Standard Parts List
SECTION 5: M AJOR OMPONENTS 5.1 Standard Parts List Table 1: Contents of AG-Series Burner Carton Part No. Description AG-40 AG-60 AG-80 AG-100 AG-125 AG-150 AG-175 ETAG36XXXXX Burner (Rate and Fuel Varies) 92700025 Gasket (Burner to Burner Tube) ETAG36100NA Installation, Operation and Service Manual 91201708 Pipe Nipple (Black) 1/2"... - Page 20 AG-S ERIES NSTALLATION PERATION AND ERVICE ANUAL Table 3: Contents of High Efficiency Core and Extension Packages Core Packages Extension Packages Hot Rolled Aluminized Hot Rolled Aluminized Part No. Description (6m) (9m) (12m) (3m) (6m) (9m) (12m) (3m) (6m) (9m) (12m) (3m) (6m)
- Page 21 SECTION 5: M AJOR OMPONENTS Table 4: Component Package Guide Tubing Length Standard Core Packages Model Minimum Hot Rolled Steel Aluminized AG-40 10’ (3m) CPWST10ALUM AG-60 20’ (6m) CPWST20HRS CPWST20ALUM AG-80 20’ (6m) CPWST20HRS CPWST20ALUM AG-100 30’ (9m) CPWST30HRS CPWST30ALUM AG-125 40’...
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Page 22: Section 6: Heater Installation
AG-S ERIES NSTALLATION PERATION AND ERVICE ANUAL SECTION 6: HEATER INSTALLATION Expansion and contraction of the tube dictates that the minimum suspension lengths must be WARNING maintained. See table on Page 17 , Figure 15. Severe Injury Hazard Secure burner to burner tube with bolts and lockwashers. -
Page 23: Figure 15: Critical Hanger Placement
SECTION 6: H EATER NSTALLATION FIGURE 15: Critical Hanger Placement Description Part Number Run Length Typical Expansion Minimum “X” Length S-Hook 91907302 10' (3 m) - 50' (15.2 m) ±1" (3 cm) 12" (30.5 cm) Tube/Reflector Hanger 0309010X 51' (15.5 m) - 60' (18.3 m) ±2"... -
Page 24: Figure 16: Linear Heater Assembly Overview
AG-S ERIES NSTALLATION PERATION AND ERVICE ANUAL FIGURE 16: Linear Heater Assembly Overview 18 of 57... -
Page 25: Figure 17: Linear Heater Layout Overview
SECTION 6: H EATER NSTALLATION FIGURE 17: Linear Heater Layout Overview 19 of 57... - Page 26 AG-S ERIES NSTALLATION PERATION AND ERVICE ANUAL Step 6.1 Burner Tube Installation Description Part Number Burner Tube 03051XXX S-Hook 91907302 Tube/Reflector Hanger 0309010X Step 6.2 Tube Clamp Package Installation Description Part Number Tube Clamp Package 0131890X 20 of 57...
- Page 27 SECTION 6: H EATER NSTALLATION Step 6.3 Coupling and Tube Assembly Close coupling and slide Insert wide end of slide bar/coupling lock into opposite end into tab. guide rail on opposite end of tabs. Slide the slide Position tab underneath bar/coupling lock up the guide rail until snug guide rail.
- Page 28 AG-S ERIES NSTALLATION PERATION AND ERVICE ANUAL Step 6.3.2 Coupling and Tube Assembly (Continued) Tube Length Model Minimum AG-40 10' (3 m) AG-60 20' (6 m) AG-80 20' (6 m) AG-100 30' (9 m) AG-125 40' (12 m) AG-150 50’ (15 m) AG-175 60' (18 m) 7' 6"...
- Page 29 SECTION 6: H EATER NSTALLATION Step 6.5 Reflector Installation WARNING Fire Hazard Support reflector with reflector hanger and support strap. Reflector must not touch tube. Failure to follow these instructions can result in death, injury or property damage. NOTE: All tube surfaces must be covered by a reflector, except for a U-tube.
- Page 30 AG-S ERIES NSTALLATION PERATION AND ERVICE ANUAL Step 6.5.1 Reflector, U-Clip and Reflector Support Installation The pictorial drawings of the heater construction in reflector supports and U-clips depend 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 be installed.
- Page 31 SECTION 6: H EATER NSTALLATION Step 6.6 Burner Installation Description Part Number Burner ETAG36XXXXX NOTE: To ensure proper orientation, Lock Washer 96411600 92113900 attached burner tube with tube weld Gasket 92700025 facing downward 25 of 57...
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Page 32: Section 7: Optional Heater Accessories
AG-S ERIES NSTALLATION PERATION AND ERVICE ANUAL SECTION 7: OPTIONAL HEATER ACCESSORIES WARNING Cut/Pinch Hazard Wear protective gear during installation, operation and service. Edges are sharp. Failure to follow these instructions can result in injury. 7.1 U-Tube Configuration Heaters (except AG-40) are approved for optional U- tube configurations. -
Page 33: Figure 18: U-Tube Heater Assembly Overview
SECTION 7: O PTIONAL EATER CCESSORIES FIGURE 18: U-Tube Heater Assembly Overview FIGURE 19: U-tube reflector kit (optional) Secure overlap with six #8 sheet metal screws. Reflector Joints Reflector Junctions Description Part Number Kit, U-tube reflector kit 027509XX 27 of 57... -
Page 34: Figure 20: U-Tube Heater Layout Overview
AG-S ERIES NSTALLATION PERATION AND ERVICE ANUAL FIGURE 20: U-Tube Heater Layout Overview a = 14” (36 cm) Reflector Width (Not Shown) b = 2” (5 cm) End Cap to Burner c = 2” (5 cm) End Cap Hanger d = 7’ 6” (2.3 cm) Distance Between First and Second Hangers e = 10’... -
Page 35: Elbow Package Configuration
SECTION 7: O PTIONAL EATER CCESSORIES 7.2 Elbow Package Configuration Step 7.2.1 Elbow Installation Minimum Distance Required Between Burner and Elbow Minimum Model Distance AG-40 Description Part Number AG-60 10' (3 m) Elbow Package 0271870X AG-80 10' (3 m) 90° Elbow 01335801 AG-100 15' (4.5 m) -
Page 36: Figure 21: Reflector Joint Detail
AG-S ERIES NSTALLATION PERATION AND ERVICE ANUAL Step 7.2.4 Reflector Joint Installation Step 7.2.5 Reflector Joint Detail FIGURE 21: Reflector Joint Detail 30 of 57... -
Page 37: Reflector Side Extension
SECTION 7: O PTIONAL EATER CCESSORIES 7.3 Reflector Side Extension Step 7.3.1 Bracket Installation Description Part Number Reflector Side Extension Package 0271270X Reflector Side Extension 0136800X 96" (244 cm) Retainer Clips 02751200 Sheet Metal Screws 94118106 Order Separately Reflector Side Extension Bracket 01329910 Step 7.3.2 Side Reflector Installation 31 of 57... -
Page 38: Lower Clearance Shield Installation
AG-S ERIES NSTALLATION PERATION AND ERVICE ANUAL 7.4 Lower Clearance Shield Installation Step 7.4.1 Shield Support Strap Assembly Reflector 12" (30 cm) 17" (43 cm) Align Pilot Holes Lower Clearance Shield Locknuts Washers Description Part Number Lower Clearance Shield Package 01397501 Shield Support Strap 01397500... - Page 39 SECTION 7: O PTIONAL EATER CCESSORIES Step 7.5.2 Frame Shield Installation Description Part Number Deco Grille Shield 24" (61 cm) 01365900 Step 7.5.3 Reflector Side Extension Installation for Decorative Grilles Distance "A" Extension Minimum Maximum Part No. Width 2" (4 cm) 6"...
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Page 40: Section 8: Venting
AG-S ERIES NSTALLATION PERATION AND ERVICE ANUAL SECTION 8: VENTING Any portion of vent pipe passing through a WARNING combustible wall must have an approved thimble to conform with the above listed codes. Vent pipe must be sloped downward away from the heater 1/2'' (1 cm) for every 20' (6 m). -
Page 41: Unvented Operation
SECTION 8: V ENTING 8.2 Unvented Operation 8.6 Length Requirements Sufficient ventilation must be provided in the amount The maximum vent length allowed is 45' (13.7 m). of 4 cfm per 1000 Btu/h firing rate (United States); 3 The maximum outside air supply duct length allowed cfm per 1000 Btu/h firing rate (Canada). -
Page 42: Horizontal Ventilation 4'' (10 Cm) Pipe
AG-S ERIES NSTALLATION PERATION AND ERVICE ANUAL 8.8 Horizontal Ventilation 4'' (10 cm) Pipe SIDE VIEW Combustible or Non-Combustible Wall Only Non-Combustible Wall Vent Adapter Vent Adapter 18" (46 cm) Min. 4" (10 cm) Single Wall Pipe Vent Terminal 4" (10 cm) Single Wall Pipe Vent Terminal Description Part Number... -
Page 43: Common Side Wall Venting
SECTION 8: V ENTING 8.10 Common Side Wall Venting Description Part Number Vent Terminal 6" (15 cm) 90502101 Requirements: • Maximum of two heaters can be commonly vented through a side wall. • Heaters must be of the same BTU output. •... -
Page 44: Common Vertical Venting
AG-S ERIES NSTALLATION PERATION AND ERVICE ANUAL 8.11 Common Vertical Venting Requirements: • Maximum of four heaters can be commonly vented through the roof. • Heaters must be of the same BTU output. • Heaters must be controlled by a common thermostat. -
Page 45: Outside Combustion Air Supply
SECTION 8: V ENTING 8.12 Outside Combustion Air Supply 8.12.1 Length Requirements IMPORTANT: If the building has a slight negative Follow the constraints listed on Page 35, Section 8.6. pressure or corrosive contaminants, such as halogenated hydrocarbons, are present in the air, an outside combustion air supply to the heater is required. - Page 46 AG-S ERIES NSTALLATION PERATION AND ERVICE ANUAL 8.12.3 Horizontal Outside Air Supply for Single Heater Installation 4" (10 cm) Single Wall Pipe Vent Cap Flex Hose (Recommended) Burner Band Clamp (Recommended) Description Part Number Vent Cap 4" (10 cm) 90502300 8.12.4 Vertical Outside Air Supply for Double Heater Installation Description Part Number...
- Page 47 SECTION 8: V ENTING 8.12.5 Horizontal Outside Air Supply for Double Heater Installation Description Part Number Vent Cap 90502302 6" (15 cm) Requirements: • Heaters must be controlled by a common thermostat. 41 of 57...
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Page 48: Section 9: Gas Piping
AG-S ERIES NSTALLATION PERATION AND ERVICE ANUAL SECTION 9: GAS PIPING Install the gas hose as shown on Page 43, Figure 23. WARNING The gas hose accommodates expansion of the heating system and allows for easy installation and service of the burner. Before connecting the burners to the supply system, verify that all high pressure testing of the gas piping has been completed. -
Page 49: Figure 23: Gas Connection With Flexible Gas Hose
SECTION 9: G IPING FIGURE 23: Gas Connection with Flexible Gas Hose Description Part Number High gas pressure regulator ½” – 2 PSI 90207600 High gas pressure regulator ¾” – 5 PSI 90207602 Description Part Number 1/2" Flexible Stainless Steel Gas Hose (US Models) 91412200 3/4"... -
Page 50: Section 10: Wiring
AG-S ERIES NSTALLATION PERATION AND ERVICE ANUAL SECTION 10: WIRING Heaters can be controlled using several methods. DANGER Normally thermostats are used to control the heaters but they can also be controlled by an energy management system. Section 10.1 illustrates the connection for heaters controlled by a line voltage thermostat. -
Page 51: Low Voltage Thermostat Wiring With Multiple Burners
SECTION 10: W IRING 10.3 Low Voltage Thermostat Wiring with Multiple Burners Transformer Relay FRONT VIEW BACK VIEW Low Voltage Thermostat Black COIL COIL Purple Black White Burner 1 Burner 2 Low Voltage Terminal Detail on all Burners 120V-60 Hz Gnd. -
Page 52: Ladder Diagram
AG-S ERIES NSTALLATION PERATION AND ERVICE ANUAL 10.5 Ladder Diagram 120VAC LINE NUETRAL (L1) (L2) BLOWER 120VAC TRANSFORMER 24VAC THERMOSTAT RELAY PRESSURE SWITCH SPARK ELECTRODE BURNER ON GAS VALVE 10.6 Electrical Connection to the Burner 46 of 57... -
Page 53: Section 11: Operation And Maintenance
SECTION 11: O PERATION AND AINTENANCE SECTION 11: OPERATION AND MAINTENANCE WARNING DANGER Electrical Shock Hazard Explosion Hazard Burn Hazard Cut/Pinch Hazard Turn off gas supply to Allow heater to cool Wear protective gear Disconnect electric before service. heater before service. before service. -
Page 54: Maintenance Checklist
AG-S ERIES NSTALLATION PERATION AND ERVICE ANUAL overall heater condition should be thoroughly conform to all requirements set forth in the inspected. ROBERTS GORDON manuals and all applicable ® NOTE: Gas flow and burner ignition are among the governmental authorities pertaining to the first things that should be throughly inspected. - Page 55 SECTION 11: O PERATION AND AINTENANCE Blower Scroll, Wheel and Compressed air or a vacuum cleaner may be used to clean dust and dirt. Motor Burner Cup and Orifice Clear of obstructions (even spider webs will cause problems). Carefully remove any dust and debris from the burner. Electrode Replace if there are cracked ceramics, excessive carbon residue, or erosion of the electrode.
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Page 56: Section 12: Troubleshooting
AG-S ERIES NSTALLATION PERATION AND ERVICE ANUAL SECTION 12: TROUBLESHOOTING DANGER Electrical Shock Hazard Disconnect electric before service. Heater must be properly grounded. Failure to follow these instructions can result in death or electrical shock. WARNING Fire Hazard Explosion Hazard Burn Hazard Cut/Pinch Hazard Keep all flammable... -
Page 57: Troubleshooting Flow Chart
SECTION 12: T ROUBLESHOOTING 12.1 Troubleshooting Flow Chart 51 of 57... - Page 58 AG-S ERIES NSTALLATION PERATION AND ERVICE ANUAL 52 of 57...
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Page 59: Manifold Gas Pressure Setting
SECTION 12: T ROUBLESHOOTING 12.2 Manifold Gas Pressure Setting 53 of 57... -
Page 60: Section 13: Replacement Parts
AG-S ERIES NSTALLATION PERATION AND ERVICE ANUAL SECTION 13: REPLACEMENT PARTS WARNING DANGER Electrical Shock Hazard Explosion Hazard Carbon Monoxide Hazard Fire Hazard Use only genuine ROBERTS GORDON ® replacement parts per this installation, operation and service manual. Failure to follow these instructions can result in death, electric shock, injury or property damage. See warnings and important information before removing or replacing parts. -
Page 61: Figure 24: Burner Exploded View
SECTION 13: R EPLACEMENT ARTS FIGURE 24: Burner Exploded View Part Number Description 90032510 Gas Valve (Natural) 90032512 Gas Valve (LP) 92700025 Tube Gasket (Not Shown) 03050900 Blower Inlet Gasket (Not Shown) 90708600-P Motor and Blower Assembly 91911700 Air Adapter Collar (Not Shown) 03600051 Burner Cup Assembly Igniter... -
Page 62: Section 14: General Specifications
AG-S ERIES NSTALLATION PERATION AND ERVICE ANUAL SECTION 14: GENERAL SPECIFICATIONS 14.1 Material Specifications 14.3 Suspension Specifications 14.1.1 Reflectors Hang heater with materials with a minimum working load of 75 lbs (33 kg). See Page 17 , Figure 15. .024 Aluminum (Optional .024 Stainless Steel Type 304) 14.4 Controls Specifications 14.2 Heater Specifications... -
Page 63: Section 15: The Roberts Gordon Energytube Ag Warranty
SECTION 15: T ROBERTS GORDON ENERGYTUBE AG W ® ® ARRANTY SECTION 15: THE ROBERTS GORDON The data plate and/or serial number are removed, ® defaced, modified or altered in any way. ENERGYTUBE AG WARRANTY ® The ownership of the ROBERTS GORDON ®...