Table of Contents
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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.
© 2014 Weather-Rite LLC
Tubular Unit and Utility Heaters
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.
Weather-Rite LLC
th
616 North 5
Minneapolis, MN 55401
Telephone: +1.612.338.1401
Fax: +1.612.338.6783
Toll Free: 800.589.3691
www.weather-rite.com
UHA-Series
(Low Profile Range)
& Service Manual
Models UHA[X][S]
30, 45, 60, 75, 100, 125
Installer
Owner
Street
P/N WR111100NA 11/14 Rev. H
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Table of Contents
Troubleshooting
Summary of Contents for Weather-Rite UHA30
- Page 1 Installation must be done by a contractor qualified in the installation and service of gas-fired heating equipment or your gas supplier. Weather-Rite LLC 616 North 5 Street Minneapolis, MN 55401 Telephone: +1.612.338.1401 Fax: +1.612.338.6783 Toll Free: 800.589.3691 www.weather-rite.com © 2014 Weather-Rite LLC P/N WR111100NA 11/14 Rev. H...
- Page 3 Weather-Rite LLC 616 North 5 Street Minneapolis, MN 55401 Téléphone: +1.612.338.1401 Fax: +1.612.338.6783 Numéro sans fraís: 800.589.3691 www.weather-rite.com P/N WR111100FC 11/14 Rev. H © 2014 Weather-Rite LLC...
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Page 5: Table Of Contents
All rights reserved. No part of this work covered by the copyrights herein may be reproduced or copied in any form or by any means - graphic, electronic, or mechanical, including photocopying, recording, taping or information storage and retrieval systems - without the written permission of Weather-Rite LLC. Printed in U.S.A. - Page 7 There are references in this manual to various trademarks. All trademarks mentioned herein, whether registered or not, are the property of their respective owners. Weather-Rite LLC is not sponsored by or affiliated with any of the trademark or registered trademark owners, and makes no representations about them, their owners, their products or services.
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Page 9: Section 1: Heater Safety
Product safety signs or labels should be replaced by possible fire, electrical or burn product user when they are no longer legible. hazards. Please pay special Please contact Weather-Rite LLC or your attention when reading and ™ WEATHER-RITE independent distributor to obtain following the warnings in these replacement signs or labels. -
Page 10: Figure 1: Uha[X][S] 30 - 45 Label Placement
UHA L ROFILE EATER NSTALLATION PERATION AND ERVICE ANUAL Figure 1: UHA[X][S] 30 - 45 Label Placement Description Part Number Logo Label 91031104 Cut Hazard Label 91010430 Vent Length Label 91039505 Vent to Outdoors Label 91010427 Warning Label 91010429 Rating Plate Label 91010423 Installation Label 91010431... -
Page 11: Figure 2: Uha[X][S] 60 - 75 Label Placement
SECTION 1: H EATER AFETY Figure 2: UHA[X][S] 60 - 75 Label Placement Description Part Number Logo Label 91031104 Cut Hazard Label 91010430 Vent Length Label 91039505 Vent to Outdoors Label 91010427 Warning Label 91010429 Rating Plate Label 91010423 Installation Label 91010431 Instruction Location Label 91010433... -
Page 12: Figure 3: Uha[X][S] 100 - 125 Label Placement
UHA L ROFILE EATER NSTALLATION PERATION AND ERVICE ANUAL Figure 3: UHA[X][S] 100 - 125 Label Placement Description Part Number Logo Label 91031104 Cut Hazard Label 91010430 Vent Length Label 91039505 Vent to Outdoors Label 91010427 Warning Label 91010429 Rating Plate Label 91010423 Installation Label 91010431... -
Page 13: Section 2: Installer Responsibility
• To provide access for servicing. • To provide the owner with a copy of this Installation, Operation and Service Manual. Weather-Rite LLC cannot be responsible for ensuring that all appropriate safety measures are • To never use heater as support for a ladder or undertaken prior to installation;... -
Page 14: Section 3: Critical Considerations
UHA L ROFILE EATER NSTALLATION PERATION AND ERVICE ANUAL SECTION 3: CRITICAL CONSIDERATIONS 3.1 Basic Information UHA[X][S] heaters have automatic ignition burners 3.5 Ventilation for ON/OFF operation only. It is important to ensure that there is adequate air space around the heater to supply air for combustion, ventilation and distribution in 3.2 Manufactured Units accordance with local and national code on Page... -
Page 15: Section 4: Clearances To Combustibles
SECTION 4: C LEARANCES TO OMBUSTIBLES SECTION 4: CLEARANCES TO COMBUSTIBLES 4.1 Required Clearances to Combustibles of exposure to combustible airborne materials or vapors. WARNING 4.2 Clearances to Combustibles Clearances must be as indicated on Page 8, Figure 4. If clearances to combustibles are not indicated, then installation clearances apply. -
Page 16: Figure 4: Installation Clearances And Clearances To Combustibles
UHA L ROFILE EATER NSTALLATION PERATION AND ERVICE ANUAL Figure 4: Installation Clearances and Clearances to Combustibles Clearance to Vent: 2" (5 cm) * Recommended mounting height varies with heater input. Heaters may be mounted at a higher level if destratification **23"... -
Page 17: Section 5: National Standards And Applicable Codes
SECTION 5: N ATIONAL TANDARDS AND PPLICABLE ODES SECTION 5: NATIONAL STANDARDS AND APPLICABLE CODES 5.1 Gas Codes 5.5 Venting The type of gas appearing on the serial plate The venting must be installed in accordance must be the type of gas used. Installation must with the requirements within this manual and comply with national and local codes and the following codes:... -
Page 18: Section 6: Heater Installation
UHA L ROFILE EATER NSTALLATION PERATION AND ERVICE ANUAL SECTION 6: HEATER INSTALLATION 6.1 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. -
Page 19: Figure 5: Suspension Methods
SECTION 6: H EATER INSTALLATION Figure 5: Suspension Methods Figure 6: Shelf-Mounting Methods Description Part Number Qty. Shelf Mounting Bracket Kit 12011000K Shelf Mounting Bracket 11111510 Screw #10 x 1/2" 94311008 Type AB Phil HWH Z Shelf Mounting Brackets Existing cabinet screws must be re-used. 11 of 51... -
Page 20: Figure 7: Wall Shelf Mounting And Suspension
UHA L ROFILE EATER NSTALLATION PERATION AND ERVICE ANUAL Figure 7: Wall Shelf Mounting and 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 Wall Suspension Mounting Bracket Kit 12011001K... -
Page 21: Figure 8: Vertical Louvers
SECTION 6: H EATER INSTALLATION Figure 8: Vertical Louvers 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... -
Page 22: Section 7: Venting
UHA L ROFILE EATER NSTALLATION PERATION AND ERVICE ANUAL SECTION 7: VENTING 7.2.1 United States Requirements WARNING Vent must terminate at least 3' (.9 m) above any Carbon Monoxide Hazard forced air inlet located within 10' (3.1 m). Vent must terminate at least 4' (1.2 m) below, Heaters must be vented outdoors. -
Page 23: Horizontal Venting
SECTION 7: V ENTING 7.3.2 Separated Combustion Heaters installing plumber or gasfitter shall observe that a (Models UHA[X]S 30 - 125) battery operated or hard wired carbon monoxide detector with an alarm is installed on each additional The heaters are designed to be installed as level of the dwelling, building or structure served by separated combustion heaters. -
Page 24: Length Requirements
UHA L ROFILE EATER NSTALLATION PERATION AND ERVICE ANUAL the rear of the heater cabinet then run the vent 1. Seal any unused openings in the venting vertically and use a condensate drain at the bottom system. of the vertical vent. 2. -
Page 25: Figure 9: Vent And Roof Detail
SECTION 7: V ENTING Figure 9: Vent and Roof Detail Figure 10: Standard Vented Heater - Vertical and Horizontal Vent Termination Model Vent Diameter Part Number UHA[X] 30 - 125 4" (10 cm) 90502102 17 of 51... -
Page 26: Figure 11: Standard Vented Heater - Common Vertical Vent
UHA L ROFILE EATER NSTALLATION PERATION AND ERVICE ANUAL Figure 11: Standard Vented Heater - Common Vertical Vent Termination Type "B" vent cap (7" [18 cm] or 8" [20 cm]) may be SIDE VIEW used. (These are not available from the manufacurer.) Type "B"... -
Page 27: Figure 12: Separated Combustion Heater - Vertical And
SECTION 7: V ENTING Figure 12: Separated Combustion Heater - Vertical and Horizontal Vent Termination Model Air Intake & Vent Diameter Part Number UHA[X]S 30 - 125 4" (10 cm) 90502102 Figure 13: Concentric Vent Box 19 of 51... -
Page 28: Figure 14: Concentric Vertical And Horizontal Vent Termination - Separated Combustion Heater
UHA L ROFILE EATER NSTALLATION PERATION AND ERVICE ANUAL Figure 14: Concentric Vertical and Horizontal Vent Termination - Separated Combustion Heater Description Part Number Qty. Concentric Vent Kit UHVK1 Concentric Vent Box Top & Side Assembly 90504113 Concentric Vent Box Bottom Assembly 90504112 Screw #6 x 3/8 Self Drilling 91119100... -
Page 29: Section 8: Air Supply
SECTION 8: A UPPLY SECTION 8: AIR SUPPLY WARNING Explosion Hazard Equipment must have access to uncontaminated air at all times. Failure to follow these instructions can result in death, injury or property damage. 8.1 Separated Combustion Installation When installed as a separated combustion heater (UHA[X]S), the air for combustion is drawn in from outside the building. -
Page 30: Section 9: Gas Piping
UHA L ROFILE EATER NSTALLATION PERATION AND ERVICE ANUAL SECTION 9: GAS PIPING Canada: Rubber type 1 gas hose (Canadian WARNING models) is certified as being in compliance with the standard for elastomeric compostite hose and hose couplings for conducting propane and natural gas, CAN/CGA 8.1 –... -
Page 31: Figure 15: Gas Connection
SECTION 9: G IPING Figure 15: Gas Connection 23 of 51... -
Page 32: Section 10: Wiring
UHA L ROFILE EATER NSTALLATION PERATION AND ERVICE ANUAL SECTION 10: WIRING Heater must be wired and electrically grounded in DANGER accordance with local codes. In the absence of local codes in accordance with: United States: refer to ® National Electrical Code NFPA 70 - latest revision;... -
Page 33: Uha[X][S] Internal Wiring Diagram
SECTION 10: W IRING 10.3 UHA[X][S] Internal Wiring Diagram IMPORTANT: For field wiring into service junction box, or if any of the original wire supplied with the heater must be replaced, it must be replaced with wiring material having a temperature rating of at least 105° C (221°... -
Page 34: Uha[X][S] Ladder Wiring Diagram
UHA L ROFILE EATER NSTALLATION PERATION AND ERVICE ANUAL 10.4 UHA[X][S] Ladder Wiring Diagram IMPORTANT: For field wiring into service junction box, or if any of the original wire supplied with the heater must be replaced, it must be replaced with wiring material having a temperature rating of at least 105° C (221°... -
Page 35: Electrical Connection To The Heater
SECTION 10: W IRING 10.5 Electrical Connection to the Heater IMPORTANT: Junction box is not provided with heater. Conduit can also be attached directly to heater with wire junction made within the heater cabinet. 27 of 51... -
Page 36: Section 11: Operation And Maintenance
UHA L ROFILE EATER NSTALLATION PERATION AND ERVICE ANUAL SECTION 11: OPERATION AND MAINTENANCE DANGER WARNING Electrical Shock Hazard Explosion Hazard Burn Hazard Cut/Pinch Hazard Disconnect electric Turn off gas supply to Allow heater to cool Wear protective gear before service. heater before service. -
Page 37: Figure 16: Automatic Burner Control Sequence
SECTION 11: O PERATION AND AINTENANCE Figure 16: Automatic Burner Control Sequence Burner Sequence for Ignition Control START SHUT DOWN Thermostat 24 V Flue Blower 30 Seconds Purge* 30 Seconds Post Purge Pressure Switch ts = 10 Seconds Ignition Spark Start Gas Valve Flame Signal 30 Seconds Delay... -
Page 38: Pressure Switch
UHA L ROFILE EATER NSTALLATION PERATION AND ERVICE ANUAL Figure 18: Gas Valve for Models UHA[X][S] 60 - 125 TOP VIEW Regulator END VIEW Outlet Gas Inlet Pressure Description Part Number Gas Valve 60 - 125 NG 90032505 Inlet Pressure Gas Valve 60 - 125 LP 90032506 11.2.2 Start-Up the Gas Valve (All Gases) -
Page 39: External Controls
SECTION 11: O PERATION AND AINTENANCE Do not use a disconnect switch for control of heater. Disconnect switch will turn off the fan. Heat exchanger could be damaged. Warranty will not cover damage to the heat exchanger if operated improperly. Only use the disconnect switch for turning off heater for service or during off-season. -
Page 40: Section 12: User Instructions
UHA L ROFILE EATER NSTALLATION PERATION AND ERVICE ANUAL SECTION 12: USER INSTRUCTIONS DANGER WARNING Electrical Shock Hazard Explosion Hazard Burn Hazard Cut/Pinch Hazard Disconnect electric Turn off gas supply to Allow heater to cool Wear protective gear before service. heater before service. -
Page 41: Lighting Instructions
SECTION 12: U NSTRUCTIONS Figure 19: Manual Reset Limit Switch 12.4.1 Simple Troubleshooting (Burner Faults) If the burner fails to ignite for any reason, it will retry Reset Button for ignition (four trials total). After four unsuccessful ignition trials, the control will put the heater into lockout for one hour. -
Page 42: Section 13: Servicing
UHA L ROFILE EATER NSTALLATION PERATION AND ERVICE ANUAL SECTION 13: SERVICING DANGER WARNING Electrical Shock Hazard Explosion Hazard Burn Hazard Cut/Pinch Hazard Disconnect electric Turn off gas supply to Allow heater to cool Wear protective gear before service. heater before service. before service. -
Page 43: Heat Exchanger Maintenance
Weather-Rite LLC. qualified in the installation and service equipment sold and supplied by Weather-Rite LLC and conform 13.6 Flue Blower to all requirements set forth in the WEATHER-RITE ™... - Page 44 Flush drain and clear any obstructions. (when installed) Wall Tag If wall tag is present, make sure it is legible and accurate. Please contact ™ Weather-Rite LLC or WEATHER-RITE independent distributor if you need a wall tag. See Page 5, Section 2.1. 36 of 51...
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Page 45: Section 14: Troubleshooting
SECTION 14: T ROUBLESHOOTING SECTION 14: TROUBLESHOOTING DANGER WARNING 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. during installation, operation and service. -
Page 46: General
UHA L ROFILE EATER NSTALLATION PERATION AND ERVICE ANUAL 14.1 General 38 of 51... -
Page 47: Troubleshooting For Automatic Ignition Burner Systems
SECTION 14: T ROUBLESHOOTING 14.2 Troubleshooting For Automatic Ignition Burner Systems For optimum heater performance, use only replacement parts sold and supplied by Weather-Rite LLC. Conduct start-up procedure as shown on Page 28, Section 11. 39 of 51... -
Page 48: Troubleshooting For Flame Supervision System
UHA L ROFILE EATER NSTALLATION PERATION AND ERVICE ANUAL 14.3 Troubleshooting for Flame Supervision System To measure flame current, connect a 0 - 50 µA DC meter in series with the flame probe. If the meter reads negative values, then reverse the test leads. NOTE: Minimum flame probe current 1 µA DC. -
Page 49: Troubleshooting For Gas Valves
SECTION 14: T ROUBLESHOOTING 14.4 Troubleshooting for Gas Valves 14.5 Troubleshooting for Flue Blower For optimum heater performance, use only replacement parts sold and supplied by Weather-Rite LLC. Conduct start-up procedure as shown on Page 28, Section 11. 41 of 51... -
Page 50: Section 15: Replacement Parts
Explosion Hazard Carbon Monoxide Hazard Fire Hazard Use only genuine WEATHER-RITE™ 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 on Page 15.1 Gas Valve... -
Page 51: Burner Injectors
SECTION 15: R EPLACEMENT ARTS 15.2 Burner Injectors Remove four screws to remove manifold. Ensure gas tight fitting of injectors. Ensure correct alignment with burners. Ensure all pipe joints are gas tight. MODEL UHA[X][S] 30 UHA[X][S] 45 UHA[X][S] 60 UHA[X][S] 75 UHA[X][S] 100 UHA[X][S] 125 Orifice Quantity Natural Gas... -
Page 52: Ignition Electrode And Flame Probe
UHA L ROFILE EATER NSTALLATION PERATION AND ERVICE ANUAL 15.3 Ignition Electrode and Flame Probe To replace the electrode or flame probe, remove the electrical lead and screw. Pull out from mounting. Refit in reverse ensuring that the gap to burner is as shown in the front view of the burner compartment. -
Page 53: Heat Exchanger
SECTION 15: R EPLACEMENT ARTS 15.4 Heat Exchanger The heat exchanger consists of a six-pass design with 1.5" outer diameter [aluminized steel][409 stainless steel] tube. The tube plates are made of [aluminized steel][409 stainless steel]. The tube supports are made of [aluminized steel] [409 stainless steel]. 15.5 Louver and Louver Springs For models UHA[X][S] 60 and UHA[X][S] 75, horizontal louvers are re-used. -
Page 54: Flue Blower Vertical Installation For Uha[X][S] 30 - 75 Only
UHA L ROFILE EATER NSTALLATION PERATION AND ERVICE ANUAL 15.6 Flue Blower Vertical Installation for UHA[X][S] 30 - 75 Only To remove the blower, remove screws securing the fan and mounting plate to the vent box. To remove the blower from the mounting plate, remove screws. -
Page 55: Pressure Switch
SECTION 15: R EPLACEMENT ARTS 15.7 Pressure Switch WARNING Carbon Monoxide Hazard Use correct pressure switch specified for each model. Use of incorrect pressure switch or disabling pressure switch circuit could cause unsafe condition. Failure to follow these instructions can result in death or serious injury. -
Page 56: Limit Switches
NSTALLATION PERATION AND ERVICE ANUAL 15.9.1 Fan Removal and Replacement • Use only genuine replacement parts sold and supplied by Weather-Rite LLC. WARNING 15.10 Limit Switches 15.10.1 Removal and Replacement 1. Remove the electrical connections to the switch. 2. Unscrew the two screws securing the switch. -
Page 57: Section 16: Specifications
SECTION 16: S PECIFICATIONS SECTION 16: SPECIFICATIONS 16.1 Dimension Data Models 28.7 11.9 22.3 17.6 18.6 28.0 20.3 10.4 UHA[X][S]30 73.0 30.2 56.6 44.7 47.2 71.1 12.1 18.3 14.7 51.6 26.4 28.7 11.9 22.3 17.6 18.6 28.0 20.3 10.4 UHA[X][S]45 73.0 30.2 56.6... -
Page 58: General Technical Data Table
UHA L ROFILE EATER NSTALLATION PERATION AND ERVICE ANUAL 16.2 General Technical Data Table UHA[X][S] UHA[X][S] UHA[X][S] UHA[X][S] UHA[X][S] UHA[X][S] Model Full Load Amps @ 120 V Air Volume 1376 1376 1902 1902 Flue and Air Intake Flue and Air Intake Size in (cm) 4 (10) - All Models *Maximum Straight Flue/Air Intake... -
Page 59: Section 17: Weather-Rite
Should you need Replacement Weather-Rite LLC will require the part in question to be Parts or have additional questions, call or write: returned to the factory. Weather-Rite LLC will, at its sole...