Roberts Gorden 30, 75 Vertical Venting, Length Requirements, Maximum Vent Lengths, Vent Material

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UHA LOW PROFILE UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL

•In the event that the requirements of this subdivision can not be met at the time of completion of installation, the owner shall have a period of thirty (30) days to comply with the above requirements; provided, however, that during said thirty (30) day period, a battery operated carbon monoxide detector with an alarm shall be installed.

Approved Carbon Monoxide Detectors: Each carbon monoxide detector as required in accordance with the above provisions shall comply with NFPA 720 and be ANSI/UL 2034 listed and IAS certified. Signage: A metal or plastic identification plate shall be permanently mounted to the exterior of the building at a minimum height of eight (8) feet above grade directly in line with the exhaust vent terminal for the horizontally vented gas fueled heating appliance or equipment. The sign shall read, in print size no less than one-half (1/2) inch in size, “GAS

VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS”.

Inspection: The state or local gas inspector of the side wall horizontally vented gas fueled equipment shall not approve the installation unless, upon inspection, the inspector observes carbon monoxide detectors and signage installed in accordance with the provisions of 248 CMR 5.08(2)(a)1 through 4.

6.6 Vertical Venting

Vertically vented heaters can be common vented (up to four heaters).

For vent lengths greater than 5' (1.5 m), condensation will form. Insulation is recommended and condensation drains may be desired. Venting through the top of the heater cabinet is not recommended if vent lengths are longer than 10' (3 m). In this case, vent from the rear of the heater cabinet then run the vent vertically and use a condensate drain at the bottom of the vertical vent. Vent pipe must be sloped 1/4'' (.6 cm) for every 1' (.3 m).

For 4'' (10 cm), an approved vent cap (P/N 90502102) must be used.

For 6'' (15 cm) common vent, an approved vent cap (P/N 90502103) must be used.

For common vertical venting of more than two heaters, See Page 18, Figure 11.

A vent shall not extend less than 2' (.6m) above the highest point where it passes through a flat roof of a building.

6.7 Length Requirements

If using vent lengths greater than 5' (1.5 m), condensation will form in the vent pipe. Insulation and additional sealing measures (high temperature silicone at all seams) are required.

The entire vent should be insulated with foil faced fiberglass insulation (1/2" thick, 1-1/2# density minimum).

6.7.1 Maximum Vent Lengths

Model UHA[X][S]

Model UHA[X][S]

Number of Elbows

30 - 60

75 - 125

 

 

 

 

25 ft (7.6 m)

40 ft (12.2 m)

1

20 ft (6.1 m)

35 ft (10.7 m)

2

15 ft (4.6 m)

30 ft (9.1 m)

3

10 ft (3.0 m)

25 ft (7.6 m)

4

5 ft (1.5 m)

20 ft (6.1 m)

5

6.8 Vent Material

Vent material may be single wall 26 ga. (minimum) galvanized steel or equal thickness stainless steel. Completely seal all joints, refer to Page 14, Section 6.3.

If penetrating a combustible wall or roof, a listed thimble with 2" (5 cm) clearance must be used. Where local codes permit, a single section of type B-1 vent material may be used at the roof or wall penetration instead of a thimble. Ensure vent manufacturer's clearance from vent material is maintained. Seal annular space of the type B-1 vent as well as all joints in the remaining vent.

6.9Replacing an Existing Heater in a Venting System

When replacing an existing heater in a venting system, the venting system may not be properly sized to vent the new heater. The following steps must be followed with each appliance connected to the venting system placed in operation, while any other appliances connected to the venting system are not in operation.

1.Seal any unused openings in the venting system.

2.Inspect the venting system for proper size and horizontal pitch, as required by the NFPA 54/ ANSI Z223.1 - latest revision, National Fuel Gas Code (US) or Standard CSA B149.1 Natural Gas and Propane Installation Code (Canada) and these instructions. Determine that there is no blockage or restriction, leakage, corrosion and other deficiencies which could cause an unsafe condition.

3.Close all building doors and windows and all doors between the space in which the appliance(s) connected to the venting system

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Contents Blackheat Page Roberts-Gordon LLC Page Table of Figures Page Manpower Requirements Heater SafetySafety Labels and Their Placement UHA 30 45 Label Placement UHA 60 75 Label Placement UHA 100 125 Label Placement Corrosive Chemicals Installer ResponsibilityWall Tag National Standards and Applicable CodesManufactured Units Minimum Required Installation ClearancesCritical Considerations 3.1 Basic Information Clearances to CombustiblesElectrical Supply Gas SupplyVent National Standards and Applicable Codes High Altitude Shelf Mounting and Suspension Major Components 5.1 GeneralWall Mounting Suspension Methods Wall Shelf Mounting and Hanging Suspension Vertical Louvers Optional Changing Vent and Air Intake Orientation Vent InstallationVenting United States RequirementsUnvented Operation Standard Vented Heaters Models Uhax 30Separated Combustion Heaters Models Uhaxs 30 Horizontal VentingMaximum Vent Lengths Vertical VentingLength Requirements Vent MaterialVent and Roof Detail Standard Vented Heater Common Vertical Vent Termination Concentric Vent Box Vertical AIR Supply Separated Combustion InstallationUnvented Installation Building VentilationGAS Piping ConnectionsFan Control WiringPositioning Thermostats Low Voltage Thermostat with One HeaterLow Voltage Thermostat with Multiple Heaters 30 Low Voltage Thermostat with Multiple Heaters 60 Internal Wiring Diagram TransformerLadder Wiring Diagram FlameElectrical Connection to the Heater Operation and Maintenance Pressure Regulator Gas Outlet Outlet Pressure Check Gas Rate Pressure SwitchTurning Off the Heater Complete Start-Up Instruction to the UserHeater Operation User InstructionsUser Instructions Lighting Instructions 11.4.1 To Turn On HeaterSimple Troubleshooting Burner Faults Simple TroubleshootingTo Turn the Heater Off Servicing Vicinity of the Heater Maintenance ChecklistVenting and Air Intake Pipe Vehicles and OtherPipe When installed Wall TagCombustion Air Intake Heat ExchangerTroubleshooting 13.1 General Troubleshooting For Automatic Ignition Burner Systems Conduct start-up procedure as shown on Page 29, SectionTroubleshooting for Flame Supervision System Troubleshooting for Gas Valves Troubleshooting for Flue BlowerReplacement Parts Burner ComponentsBurner Compartment Burner InjectorsIgnition Electrode and Flame Probe Louver and Louver Springs Re-usedFlue Blower Vertical Installation Axial Fan/Guard/Motor Assembly Ignition ControlTo Replace the Fan Assembly Fan Removal and ReplacementLimit Switches Removal and Replacement Specifications 15.1 Dimension Data Model UhaxsGeneral Technical Data Table All Models Technical Data Table All ModelsRoberts-Gordon Warranty is Void ifRoberts Gordon will not PAY for Limitations on Authority RepresentativesPage Owner Warranty Registration Card Page Page Some objects can catch fire or explode when placed
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60, 30, 45, 125, 100 specifications

Roberts Gordon is a recognized leader in the manufacturing of innovative heating solutions, with a diverse product line including the 100, 125, 75, 45, and 60 series of radiant tube heaters. Each model is designed to meet specific heating needs while emphasizing efficiency, durability, and performance.

The Robert Gordon 100 series is known for its high efficiency and ability to provide consistent warmth in large industrial spaces. It features advanced infrared technology, which heats objects and surfaces directly, resulting in quicker temperature increases and enhanced comfort. This model is equipped with modulating burners that allow for optimal gas usage and can be easily integrated into existing systems.

The 125 series builds upon the efficiency of the 100 model while offering increased heating capacity. Its robust design ensures it can handle the demands of larger applications, such as warehouses and manufacturing facilities. With enhanced control options, users can tailor the heating output to match specific operational requirements, reducing energy consumption.

The 75 series offers a compact solution for smaller commercial spaces, providing a reliable heating source without taking up excessive floor space. Its lightweight design facilitates easy installation, while the modular approach allows for scalability to meet changing heating demands. This series emphasizes sustainability, utilizing advanced combustion technologies that minimize emissions.

For smaller applications, the 45 series stands out with its efficient heating capabilities in confined spaces. This series features simple, yet effective controls, enabling straightforward operation. The robust construction ensures durability, making it well-suited for different commercial environments, including retail settings or small workshops.

Finally, the 60 series combines the best features of the range with energy conservation as a primary focus. Its innovative design incorporates smart technology to monitor energy usage and optimize performance. The heaters are equipped with the latest in safety features, providing peace of mind for users.

Overall, Roberts Gordon’s radiant tube heaters showcase a commitment to high-quality heating solutions that cater to a variety of industrial and commercial applications. With energy efficiency, superior durability, and advanced heating technologies as core characteristics, Roberts Gordon remains a trusted choice for businesses looking to enhance their heating performance.
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