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®
Combat
UHA-Series
Tubular Unit Heaters
(Low Profile Range)
Installation, Operation
& Service Manual
Models UHA[X][S]
30, 45, 60, 75, 100, 125
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.
"
#
$
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TABLE OF CONTENTS SECTION 1: Heater Safety......................................................1 SECTION 10: Operation and Maintenance ..........................29 1.1 Manpower Requirements .............................................1 10.1 Pre-Start-Up Checks ................................................29 1.2 Safety Labels and Their Placement .............................1 10.2 Begin Start-Up .........................................................29 SECTION 2: Installer Responsibility .
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TABLE OF FIGURES Figure 1: UHA 30 - 45 Label Placement ...................................2 Figure 2: UHA 60 - 75 Label Placement ...................................3 Figure 3: UHA 100 - 125 Label Placement................................4 Figure 4: Installation Clearances and Clearances to Combustibles.........................................................7 Figure 5: Suspension Methods ............................................... 11 Figure 6: Shelf-Mounting Methods.......................
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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 equipment. Read this manual carefully before installation, operation
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UHA LOW PROFILE UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL Figure 1: UHA 30 - 45 Label Placement Description Part Number Logo Label 91040030 Cut Hazard Label 91010430 Vent Length Label 91039505 Vent to Outdoors Label 91010427 Warning Label 91010429 Rating Plate Label 91010420 Installation Label 91010431 Instruction Location Label 91010433 Lighting Instruction Label 91010425 Venting Arrangement Label* 91010426 Manual Reset Switch Label 91010428 * For separated combustion units only 2
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SECTION 1: HEATER SAFETY Figure 2: UHA 60 - 75 Label Placement Description Part Number Logo Label 91040030 Cut Hazard Label 91010430 Vent Length Label 91039505 Vent to Outdoors Label 91010427 Warning Label 91010429 Rating Plate Label 91010420 Installation Label 91010431 Instruction Location Label 91010433 Lighting Instruction Label 91010425 Venting Arrangement Label* 91010426 Manual Reset Switch Label 91010428 * For separated combustion units only 3
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UHA LOW PROFILE UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL Figure 3: UHA 100 - 125 Label Placement %&''""(')""# )"&%&' )&*"#
Description Part Number Logo Label 91040030 Cut Hazard Label 91010430 Vent Length Label 91039505 Vent to Outdoors Label 91010427 Warning Label 91010429 Rating Plate Label 91010420 Installation Label 91010431 Instruction Location Label 91010433 Lighting Instruction Labe
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SECTION 1: HEATER SAFETY SECTION 2: INSTALLER RESPONSIBILITY The installer is responsible for the following: of combustible materials, corrosive chemicals or halogenated hydrocarbons* anywhere in the • To install the heater, as well as the gas and premises. electrical supplies, in accordance with applicable specifications and codes. Roberts-Gordon * Halogenated Hydrocarbons are a family of chemical recommends the installer contact a Local compounds characterized by the presence of halo
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UHA LOW PROFILE UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL SECTION 3: CRITICAL CONSIDERATIONS 3.1 Basic Information 3.5 Clearances to Combustibles UHA[X][S] heaters have automatic ignition burners WARNING for ON/OFF operation only. 3.2 Manufactured Units Gas-fired, power-vented unit heater with tubular heat exchanger. Units shall have a minimum of 82% thermal efficiency. The standard unit shall consist of a non-separated combustion design with an Fire Hazard aluminized heat exch
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SECTION 3: CRITICAL CONSIDERATIONS 3.7 Gas Supply 3.8 Electrical Supply WARNING WARNING Electrical Shock Hazard Fire Hazard Disconnect electrical and gas supply before Connect gas supply according to Figure 15. servicing. Do not use gas supply pipe and electrical This appliance must be connected to a connections to support heater’s weight. properly grounded electrical source. Gas can leak if not installed properly. Failure to follow these instructions can result in death or electrical shoc
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UHA LOW PROFILE UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL SECTION 4: NATIONAL STANDARDS AND APPLICABLE CODES 4.1 Gas Codes 4.3 Parking Structures and Repair Garages The type of gas appearing on the name plate Installation in garages must be in accordance must be the type of gas used. Installation must with the following codes: comply with national and local codes and United States: Standard for Parking Structures requirements of the local gas company. NFPA 88A - latest revision or
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SECTION 4: NATIONAL STANDARDS AND APPLICABLE CODES 4.6 High Altitude These heaters are CSA-approved (without modifications) for installations up to 2000' (610 m) in US and Canada. CSA approved heaters installed above 2000' (610 m) must be de- rated. For installations above 2000' (610 m) in US, consult factory for information on burner de-rating. For installations from 2000' (610 m) to 4500' (1370m) in Canada, high altitude conversion kits are available. Heaters installed over 4500' (1370
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UHA LOW PROFILE UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL SECTION 5: MAJOR COMPONENTS 5.1 General Heaters are designed for installation above 6' (1.8 m). These heaters must be installed within the heated space. Duct delivery systems are not permitted with axial fan units. When handling or supporting the heater from below, ensure that the weight is taken at the support points. The gas or electrical supply lines must not be used to support the heater. Do not locate the gas or
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SECTION 5: MAJOR COMPONENTS Figure 5: Suspension Methods Ensure all suspension hardware is torqued to Channel a minimum of 20 ft lbs. Unistrut Nut Washer Nut 3/8" Threaded Rod Cone Point Set Pin Window Clamp 3/8" Threaded Unistrut Rod Nut Washer Riv Nut Support Points Figure 6: Shelf-Mounting Methods Description Part Number Qty. Shelf Mounting Bracket Kit 12011000K Shelf Mounting Bracket 11111510 2 Screw #10 x 1/2" 94311008 2 Type AB Phil HWH Z !"#
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UHA LOW PROFILE UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL Figure 7: Wall Shelf Mounting and Hanging Suspension Description Part Number Qty. Description Part Number Qty. Wall Suspension Mounting Bracket Kit 12011001K Wall Shelf Mounting Bracket Kit 12011002K Wall Mounting Bracket Arm Left 111WALL1L 1 Wall Suspension Mounting Bracket Kit 12011001K 1 Wall Mounting Bracket Arm Right 111WALL1R 1 Shelf Mounting Bracket Kit 12011000K 1 Wall Mounting Bracket Vertical 111WAL2 2
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SECTION 5: MAJOR COMPONENTS Figure 8: Vertical Louvers (Optional) Remove horizontal louvers. Install vertical louvers brackets (top and bottom) with supplied screws. Install vertical Push in louvers and springs louver and compress into brackets spring to remove with springs at top. (opposite end first) Description Part Number Qty. Description Part Number Qty. Vertical Louver Kit UHA[X][S] 60 & Vertical Louver Kit UHA[X][S] 30 & 12011003K 12011005K UHA[X][S] 75 UHA[X][S] 45 Vertical Lo
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UHA LOW PROFILE UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL SECTION 6: VENTING sheet metal screws. WARNING For single wall venting, pressure sensitive aluminum Carbon Monoxide Hazard tape or silicone sealant must be used to seal all joints. Heaters may be installed vented or unvented. Aluminum tape shall have a minimum temperature rating of 400° F (204° C) and meet SMACNA AFTS- Vented heaters must be 100-73 standards. High temperature silicone vented outdoors. sealant must have
