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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.
© 2013 Roberts-Gordon LLC
Tubular Duct Furnace
(Standard Range)
Installation, Operation
& Service Manual
Models UHD[T][X][S][R]
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 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
www.rg-inc.com
Combat
UHD-Series
150, 175, 200, 225
250, 300, 350, 400
Owner
P/N 113001NA 11/13 Rev D
®
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Summary of Contents for Roberts Gorden Combat UHD-Series
- Page 1 FOR YOUR SAFETY Combat 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. UHD-Series 5. Extinguish any open flame. 6.
- Page 3 POUR VOTRE SECURITE Combat Si vous sentez une odeur de gaz: 1. Ouvrez les fenêtres. ® 2. N’essayez PAS d’allumer un appareil. 3. N’utilisez PAS d’interrupteurs électriques. 4. N’utilisez PAS de téléphone dans votre bâtiment. UHD-Series Appareil de 5. Eteignez toute flamme nue. 6.
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Page 5: Table Of Contents
TABLE OF CONTENTS SECTION 1: Heater Safety............1 10.4 UHD[X][S][R] Series Internal Wiring Diagram for 1.1 Manpower Requirements ..........1 Single Stage Gas Valves ...........23 1.2 Safety Labels and Their Placement ......1 10.5 UHD[X][S][R] Series Ladder Wiring Diagram for 1.3 California Proposition 65 .......... - Page 6 15.10 Pressure Switch ............. 51 15.11 Ignition Control ............51 15.12 Limit Switches ............51 SECTION 16: Specifications ..........52 16.1 Dimension Data for Models UHD[T][X][S][R] 150-250..............52 16.2 General Technical Data Table ........53 16.3 Technical Data Table..........53 16.4 Dimension Data for Models UHD[X][S][R]300-400 ..
- Page 7 TABLE OF FIGURES Figure 1: UHD[T][X][S][R] 150-175 Label Placement....2 Figure 2: UHD[T][X][S][R] 200-250 Label Placement ....3 Figure 3: UHD[X][S][R] 300 – 400 Label Placement ....4 Figure 4: Clearances to Combustibles ........7 Figure 5: Air Flow Direction ............. 10 Figure 6: Suspension Methods ..........
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Page 9: Section 1: Heater Safety
SECTION 1: H EATER AFETY SECTION 1: HEATER SAFETY Your Safety is Important to Us! 1.2 Safety Labels and Their Placement This symbol is used throughout Product safety signs or labels should be replaced by the manual to notify you of the product user when they are no longer legible. -
Page 10: Figure 1: Uhd[T][X][S][R] 150-175 Label Placement
UHD S TANDARD URNACE NSTALLATION PERATION AND ERVICE ANUAL Figure 1: UHD[T][X][S][R] 150-175 Label Placement Description Part Number Logo Label 91040030 Vent Length Label 91039505 Vent to Outdoors Label 91010427 Warning Label 91010429 Rating Plate Label 91039802 Installation Label 91010431 Instruction Location Label 91010433 Lighting Instruction Label... -
Page 11: Figure 2: Uhd[T][X][S][R] 200-250 Label Placement
SECTION 1: H EATER AFETY Figure 2: UHD[T][X][S][R] 200-250 Label Placement Description Part Number Logo Label 91040030 Vent Length Label 91039505 Vent to Outdoors Label 91010427 Warning Label 91010429 Rating Plate Label 91039802 Installation Label 91010431 Instruction Location Label 91010433 Lighting Instruction Label 91010425 Venting Arrangement Label*... -
Page 12: Figure 3: Uhd[X][S][R] 300 - 400 Label Placement
UHD S TANDARD URNACE NSTALLATION PERATION AND ERVICE ANUAL Figure 3: UHD[X][S][R] 300 – 400 Label Placement VENT TO OUTDOORS DONNER VENT A DEHORS Printed in U.S.A. / Imprimé aux Etats Unis P/N 91010427 © 2006 Roberts-Gordon, LLC Description Part Number Logo Label 91040030 Vent Length Label... -
Page 13: Section 2: Installer Responsibility
SECTION 2: I NSTALLER ESPONSIBILITY SECTION 2: INSTALLER RESPONSIBILITY The installer is responsible for the following: 2.2 Corrosive Chemicals • To install the heater, as well as the gas and CAUTION electrical supplies, in accordance with applicable specifications and codes. Roberts-Gordon LLC recommends the installer contact a Local Building Inspector or Fire Marshal for guidance. -
Page 14: Section 3: Critical Considerations
UHD S TANDARD URNACE NSTALLATION PERATION AND ERVICE ANUAL SECTION 3: CRITICAL CONSIDERATIONS 3.1 Basic Information • May be mounted on a shelf of non-combustible material. UHD[T][X][S][R] heaters have automatic ignition burners for ON/OFF or HIGH/LOW operation only. • May be suspended from above (See Page 11, Section 6.2) or from wall brackets of sufficient strength to support the heater as listed in the 3.2 Manufactured Units... -
Page 15: Section 4: Clearances To Combustibles
SECTION 4: C LEARANCES TO OMBUSTIBLES SECTION 4: CLEARANCES TO COMBUSTIBLES of exposure to combustible airborne materials or 4.1 Required Clearances to Combustibles vapors. WARNING 4.2 Clearances to Combustibles Clearances must be as indicated on Page 7 , Figure 4. If clearances to combustibles are not indicated, then installation clearances apply. -
Page 16: Section 5: National Standards And Applicable Codes
UHD S TANDARD URNACE NSTALLATION PERATION AND ERVICE ANUAL SECTION 5: NATIONAL STANDARDS AND APPLICABLE CODES 5.1 Gas Codes 5.3 Parking Structures and Repair Garages The type of gas appearing on the serial plate Installation in garages must be in accordance must be the type of gas used. -
Page 17: High Altitude
SECTION 5: N ATIONAL TANDARDS AND PPLICABLE ODES 5.6 High Altitude These heaters are approved (without modifications) for installations up to 2000' (610 m) in US and Canada. 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. -
Page 18: Section 6: Duct Heater Installation
UHD S TANDARD URNACE NSTALLATION PERATION AND ERVICE ANUAL The minimum inlet duct lengths shown on Page 10, SECTION 6: DUCT HEATER INSTALLATION Section 6.1.1 must be observed. Pressure drop 6.1 General through the heat exchanger at various air flows is To connect the inlet and outlet ducts to the heater, shown on Page 10, Section 6.1.2. -
Page 19: Suspension
SECTION 6: D EATER NSTALLATION 6.2 Suspension The gas or electrical supply lines must not be used WARNING to support the heater. Crush Hazard Do not locate the gas or electrical supply lines directly over the path of the flue products from the Use 3/8"... -
Page 20: Section 7: Venting
UHD S TANDARD URNACE NSTALLATION PERATION AND ERVICE ANUAL building. SECTION 7: VENTING NFPA 54/ANSI Z223.1 - latest revision, National WARNING Fuel Gas Code specifies a 4' (1.2 m) horizontal vent Carbon Monoxide Hazard terminal clearance from gas and electric meters, regulators and relief equipment. -
Page 21: Horizontal Venting
SECTION 7: V ENTING terminals. See Page 16, Figure 10. As an option, the 7.6 Vent Material vent and air intake are run as separate pipes to a Vent material may be single wall 26 ga. (minimum) concentric vent box and a concentric vent/air intake galvanized steel or equal thickness stainless steel. -
Page 22: Figure 8: Standard Vented Heater - Vertical And Horizontal Vent Termination
UHD S TANDARD URNACE NSTALLATION PERATION AND ERVICE ANUAL Figure 8: Standard Vented Heater - Vertical and Horizontal Vent Termination Model Vent Diameter Part Number UHD[T][X][R] 150 - 250 4" (10 cm) 90502102 UHD[X][R] 300 - 400 14 of 57... -
Page 23: Figure 9: Standard Vented Heater - Common Vertical Vent Termination
SECTION 7: V ENTING Figure 9: 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" Vent Pipe 2'(.6 m) Roof Minimum... -
Page 24: Figure 10: Separated Combustion Heater - Vertical And Horizontal Vent Termination
UHD S TANDARD URNACE NSTALLATION PERATION AND ERVICE ANUAL Figure 10: Separated Combustion Heater - Vertical and Horizontal Vent Termination Model **Vent Diameter Part Number UHD[T][X]S[R] 150 - 250 4" (10 cm) 90502102 UHD[X]S[R] 300 - 400 4" (10 cm) 90502102 Model *Air Intake Diameter... -
Page 25: Figure 12: Concentric Vertical And Horizontal Vent Termination - Separated Combustion Heater
SECTION 7: V ENTING Figure 12: Concentric Vertical and Horizontal Vent Termination - Separated Combustion Heater 4" (10 cm) NOTE: Vent supports not Type B-1 Vent Vent Terminal shown. Duct supports UHDS 150-250: with Baffle Plate not shown. Duct and 6"... -
Page 26: Section 8: Air Supply
UHD S TANDARD URNACE NSTALLATION PERATION AND ERVICE ANUAL 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 (UHD[T][X]S[R]), the air for combustion is drawn in from outside the building. -
Page 27: Section 9: Gas Piping
SECTION 9: G IPING SECTION 9: GAS PIPING Canada: Rubber type 1 gas hose (Canadian models) is certified as being in compliance with the standard for elastomeric composite hose and hose couplings for conducting propane and natural gas, CAN/CGA 8.1 – latest revision. 9.1 Connections Connect the heater to the gas supply ensuring that the final connections are as follows:... -
Page 28: Figure 13: Gas Connection
UHD S TANDARD URNACE NSTALLATION PERATION AND ERVICE ANUAL Figure 13: Gas Connection 20 of 57... -
Page 29: Section 10: Wiring
SECTION 10: W IRING SECTION 10: WIRING All heaters are equipped with thermostat DANGER connections suitable to power a 24 V thermostat. Heater must be wired and electrically grounded in accordance with local codes. In the absence of local codes in accordance with: United States: refer to National Electrical Code ®... -
Page 30: Low Voltage Thermostat With One Heater For Models Uhd[X][S][R] 300-400
UHD S TANDARD URNACE NSTALLATION PERATION AND ERVICE ANUAL 10.3 Low Voltage Thermostat with One Heater for Models UHD[X][S][R] 300-400 22 of 57... -
Page 31: Uhd[X][S][R] Series Internal Wiring Diagram For Single Stage Gas Valves
SECTION 10: W IRING 10.4 UHD[X][S][R] Series Internal Wiring Diagram for Single Stage Gas Valves 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 32: Uhd[X][S][R] Series Ladder Wiring Diagram For Single Stage Gas Valves
UHD S TANDARD URNACE NSTALLATION PERATION AND ERVICE ANUAL 10.5 UHD[X][S][R] Series Ladder Wiring Diagram for Single Stage Gas Valves 120 VAC FLUE BLOWER TRANSFORMER GAS VALVE PRESSURE SWITCH FLAME SENSOR IGNITION FLAME MODULE LIMIT SWITCH (UHD 300, 350, 400 ONLY) LIMIT SWITCH ELECTRODE SPARK... -
Page 33: Uhd[T][X][S][R] Series Internal Wiring Diagram For Two Stage Gas Valves
SECTION 10: W IRING 10.6 UHD[T][X][S][R] Series Internal Wiring Diagram for Two Stage Gas Valves HIGH COMMON W2 HIGH/LOW CONTROL 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: Uhd[T][X][S][R] Series Ladder Wiring Diagram For Two Stage Gas Valves
UHD S TANDARD URNACE NSTALLATION PERATION AND ERVICE ANUAL 10.7 UHD[T][X][S][R] Series Ladder Wiring Diagram for Two Stage Gas Valves HIGH STAGE NOTE: 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°... -
Page 35: Electrical Connection To The Heater
SECTION 10: W IRING 10.8 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 57... -
Page 36: Section 11: Operation And Maintenance
UHD S TANDARD URNACE NSTALLATION PERATION AND ERVICE ANUAL SECTION 11: OPERATION AND MAINTENANCE 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 heater before service. before service. -
Page 37: Figure 14: Automatic Burner Control Sequence
SECTION 11: O PERATION AND AINTENANCE Figure 14: 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 *Purge time begins at pressure switch change over. -
Page 38: Figure 16: Two Stage Gas Valve For Models Uhd[T][X][S][R] 150 - 250
UHD S TANDARD URNACE NSTALLATION PERATION AND ERVICE ANUAL Figure 16: Two Stage Gas Valve for Models UHD[T][X][S][R] 150 - 250 TOP VIEW Regulator END VIEW Outlet Gas Inlet Pressure Description Part Number Gas Valve 150 - 250 NG 90032530 Gas Valve 150 - 250 LP 90032531 Inlet Pressure... -
Page 39: Pressure Switch
SECTION 11: O PERATION AND AINTENANCE 11.2.3 Start-Up the Gas Valve (All Gases) 11.4 External Controls 11.2.3.1 Check Burner Gas Pressure External controls may include time switch, interlock switch, room thermostat and frost thermostat. 1. Remove the plug in the outlet (burner) pressure Operate each control to ensure that they function test point and connect a pressure tap and a correctly. -
Page 40: Section 12: User Instructions
UHD S TANDARD URNACE NSTALLATION PERATION AND ERVICE ANUAL SECTION 12: USER INSTRUCTIONS 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 heater before service. before service. -
Page 41: Section 13: Servicing
SECTION 13: S ERVICING SECTION 13: SERVICING 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 heater before service. before service. during installation, before service. operation and service. -
Page 42: Gas Valve Maintenance
UHD S TANDARD URNACE NSTALLATION PERATION AND ERVICE ANUAL front of the tubes which may indicate burner over or combustion air pipe is sagging. Check to make firing or persistently low air flows. sure any insulation is not missing or in poor condition. - Page 43 SECTION 13: S ERVICING Cabinet Exterior After installation, touch up scratches. Periodic painting should be done there- after as required. Warning labels and logo labels should be legible and accu- ® rate. Please contact Roberts-Gordon LLC or ROBERTS GORDON independent distributor if you need replacement warning labels or logo labels. See Page 2, Figure 1 through Page 4, Figure 3.
- Page 44 UHD S TANDARD URNACE NSTALLATION PERATION AND ERVICE ANUAL Ductwork Consult an indoor air quality professional for proper cleaning procedures Air Circulation Blower For a complete inspection, see the manufacturer’s Installation, Operation and Service manual. Wall Tag If wall tag is present, make sure it is legible and accurate. Please contact Roberts-Gordon LLC or your ROBERTS GORDON ®...
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Page 45: Section 14: Troubleshooting
SECTION 14: T ROUBLESHOOTING SECTION 14: TROUBLESHOOTING 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 heater before service. before service. during installation, before service. operation and service. -
Page 46: General
UHD S TANDARD URNACE NSTALLATION PERATION AND ERVICE ANUAL 14.1 General 38 of 57... -
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 Roberts-Gordon LLC. Conduct start-up procedure as shown on Page 28, Section 11. 39 of 57... -
Page 48: Troubleshooting For Flame Supervision System
UHD S TANDARD URNACE 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. START Connect a DC ammeter in series with the flame probe. -
Page 49: Troubleshooting For Gas Valves
SECTION 14: T ROUBLESHOOTING 14.4 Troubleshooting for Gas Valves START Is gas pressure at inlet of the Fault elsewhere. valve correct for gas type? Correct pressure problem. Note pressure found. Valve or ignition control Does gas pressure at outlet of the valve rise when faulty. -
Page 50: Section 15: Replacement Parts
UHD S TANDARD URNACE NSTALLATION PERATION AND ERVICE ANUAL SECTION 15: 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. -
Page 51: Burner Compartment For Models Uha[T][X][S][R] 150-250
SECTION 15: R EPLACEMENT ARTS 15.2 Burner Compartment for Models UHA[T][X][S][R] 150-250 Side View of Burner Compartment with Hinged Door Removed Before burner removal, remove the 10 screws holding the filler panel on and remove the filler panel. 15.2.1 Burner Compartment without Filler Panel for Models UHA[T][X][S][R] 150-250 Side View of Burner Compartment with Filler Panel Removed Burner assembly must be removed to... - Page 52 UHD S TANDARD URNACE NSTALLATION PERATION AND ERVICE ANUAL 15.2.2 Burner Injectors for Models UHD[T][X][S][R] 150-250 Remove 4 screws to remove manifold. Ensure gas tight fitting of injectors. Ensure correct alignment with burners. Ensure all pipe joints are gas tight. MODEL UHD[T][X][S][R]150 UHD[T][X][S][R]175 UHD[T][X][S][R]200 UHD[T][X][S][R]225 UHD[T][X][S][R]250 Orifice Quantity...
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Page 53: Burner Compartment For Models Uhd[X][S][R] 300-400
SECTION 15: R EPLACEMENT ARTS 15.3 Burner Compartment for Models UHD[X][S][R] 300-400 The burner compartment is Burner a sealed compartment. Compartment Cover Following any work, Flame Probe re-seal the compartment Viewing port with the gas pipe rubber for flame probe seal fully in place and all Remove flexible screws fitted and tight. -
Page 54: Ignition Electrode And Flame Probe For Models Uhd[T][X][S][R] 150-250
UHD S TANDARD URNACE NSTALLATION PERATION AND ERVICE ANUAL 15.4 Ignition Electrode and Flame Probe for Models UHD[T][X][S][R] 150-250 To replace the ignition 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 55: Ignition Electrode And Flame Probe For Models Uhd[X][S][R] 300-400
SECTION 15: R EPLACEMENT ARTS 15.5 Ignition Electrode and Flame Probe for Models UHD[X][S][R] 300-400 Inshot Burners Inshot Burners Limit Thermostat Flame Flame Probe Probe Remove all burner compartment screws to remove the burner Flame Remove compartment and Probe Screw access the “Front View”... -
Page 56: Heat Exchanger
UHD S TANDARD URNACE NSTALLATION PERATION AND ERVICE ANUAL 15.6 Heat Exchanger The heat exchanger consists of a four-pass design with 1.75" outer diameter [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]. -
Page 57: Flue Blower For Models Uhd[T][X][S][R] 200-250
SECTION 15: R EPLACEMENT ARTS 15.8 Flue Blower for Models UHD[T][X][S][R] 200-250 Remove screws securing outlet flange to the flue adapter. Refit in reverse order. Disconnect electrical connections at plug in tabs. Remove screws securing flue fan mounting plate to vent box. -
Page 58: Flue Blower For Models Uhd[X][S][R] 300-400
UHD S TANDARD URNACE NSTALLATION PERATION AND ERVICE ANUAL 15.9 Flue Blower for Models UHD[X][S][R] 300-400 Remove screws securing Rear Panel outlet flange to the flue Flue Adapter adapter. to Flue Blower Hole screw Refit in reverse order. Vent Box Flue Vent Box Outlet... -
Page 59: Pressure Switch
SECTION 15: R EPLACEMENT ARTS 15.10 Pressure Switch Pull off 3 way connector. Spring open plastic clips of mounting cradle. Replace with correct type of pressure switch for model. The pressure switches are color coded for each pressure setting. Carry out a start-up after working on or changing a pressure switch. See Page 28, Section 11. UHD[T][X][S][R] UHD[T][X][S][R] UHD[T][X][S][R]... -
Page 60: Section 16: Specifications
UHD S TANDARD URNACE NSTALLATION PERATION AND ERVICE ANUAL SECTION 16: SPECIFICATIONS 16.1 Dimension Data for Models UHD[T][X][S][R] 150-250 Model UHA[T][X][S]150 UHA[T][X][S]175 UHA[T][X][S]200 UHA[T][X][S]225 UHA[T][X][S]250 in (cm) 42.4 (107.7) 42.4 (107.7) 42.4 (107.7) 42.4 (107.7) 42.4 (107.7) in (cm) 26.7 (67.8) 26.7 (67.8) 35.0 (88.9) 35.0 (88.9) -
Page 61: General Technical Data Table
SECTION 16: S PECIFICATIONS 16.2 General Technical Data Table [T][X][S][R] [T][X][S][R] [T][X][S][R] [T][X][S][R] [T][X][S][R] Model Full Load Amps @ 120 V Minimum Air Volume 1360 1400 2050 2100 2350 Temperature Rise @ °F Minimum Air Volume (°C) (46) (52) (40) (44) (44) Heat Exchanger Pressure... -
Page 62: Dimension Data For Models Uhd[X][S][R]300-400
UHD S TANDARD URNACE NSTALLATION PERATION AND ERVICE ANUAL 16.4 Dimension Data for Models UHD[X][S][R]300-400 Top View Heater must be supported at these points from above or below. 3 /8 ” Captive Nuts Provided Support Centers Duct Flange Side View Rear View Air Intake (UHD[X]S[R] only) -
Page 63: Technical Data Table
SECTION 16: S PECIFICATIONS 16.5 General Technical Data Table Model UHD[X][S][R] 300 UHD[X][S][R] 350 UHD[X][S][R] 400 Full Load Amps @ 120 V Minimum Air Volume 2700 3120 3420 Temperature Rise @ °F Minimum Air Volume (°C) (47) (47) (47) Heat Exchanger Pressure Drop @ Minimum Air Volume in wc 0.02... - Page 64 UHD S TANDARD URNACE NSTALLATION PERATION AND ERVICE ANUAL 56 of 57...
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Page 65: Section 17: The Roberts Gordon
® SECTION 17: T ROBERTS GORDON UHD-S ERIES ARRANTY ® SECTION 17: THE ROBERTS GORDON UHD-SERIES WARRANTY ROBERTS-GORDON LLC WILL PAY FOR: READ YOUR INSTALLATION, OPERATION AND SERVICE MANUAL Within 24 months from date of purchase by buyer or 27 months from date of shipment by Roberts-Gordon LLC If you have questions about your controller, contact your (whichever comes first), replacement parts will be...
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