Roberts Gorden 125, 100, 75 User Manual

FOR YOUR SAFETY

WARNING

Installation must be done by a contractor qualified in the installation and service of gas-fired heating equipment or your gas supplier.

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.

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.

Owner

Keep this manual in a safe place in order to provide

your serviceman with necessary information.

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.

Combat

UHD-Series

Tubular Duct Furnace

(Low Profile Range)

WARNING

Fire Hazard

Keep all flammable objects, liquids and vapors the minimum required clearances 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.

Installation, Operation

& Service Manual

Models UHD[X][S]

75, 100, 125

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

P/N 113000NA 09/12 Rev B

POUR VOTRE SECURITE

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.

5. Eteignez toute flamme nue.

6. Quittez le bâtiment.

7. Après avoir quitté le bâtiment, appelez immédiatement votre fournisseur local de gaz. Suivez les instructions du fournisseur de gaz.

8. Si vous ne pouvez pas joindre votre fournisseur de gaz, appelez le service d’incendie.

Combat

UHD-Series

Appareil de chauffage conduit à

échangeur tubulaire

AVERTISSEMENT

Risque d’incendie

Garder tous les objets, liquides ou vapeurs inflammables à la distance minimale de l’unité de chauffage requise avec les matériaux combustibles.

Certains objets prendront feu ou exploseront s’ils sont placés à proximité de l’unité de chauffage.

Le non respect de ces instructions peut entraîner la mort, des blessures corporelles ou des dommages matériels.

(Gamme compacte)

Manuel d’installation,

d’operation, et de service

Modèles UHD[X][S]

75, 100, 125

AVERTISSEMENT

L’installation, le réglage, la modification, la réparation ou la maintenance inadapté peut entraîner la mort, des blessures ou des dommages matériels. Lire attentivement le manuel d'installation, d'utilisation et d'entretien avant d’installer ou de réparer cet équipement.

L’installation doit être effectuée par un entrepreneur qualifié dans l'installation et l'entretien d'appareils de chauffage au gaz ou par votre fournisseur de gaz.

Installateur

Veuillez prendre le temps de lire et de comprendre ces

instructions avant toute installation. L’installateur doit

donner un exemplaire de ce manuel au propriétaire.

Propriétaire

Garder ce manuel dans un endroit sûr pour fournir les

informations nécessaires au personnel d’entretien.

Roberts-Gordon LLC

1250 William Street P.O. Box 44 Buffalo, New York 14240-0044 Téléphone: +1.716.852.4400 Fax: +1.716.852.0854 Numéro sans fraís: 800.828.7450

www.robertsgordon.com www.rg-inc.com

P/N 113000FC 09/12 Rev B

Roberts-Gordon LLC

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 Roberts-Gordon LLC.

TABLE OF CONTENTS

SECTION 1: Heater Safety...................................................... 1

1.1 Manpower Requirements ............................................. 1

1.2 Safety Labels and Their Placement .............................1

1.3 California Proposition 65 .............................................. 1

SECTION 2: Installer Responsibility .....................................4

2.1 Wall Tag.......................................................................4

2.2 Corrosive Chemicals .................................................... 4

2.3 National Standards and Applicable Codes .................. 4

SECTION 3: Critical Considerations .....................................5

3.1 Basic Information.........................................................5

3.2 Manufactured Units...................................................... 5

3.3 Location and Suspension ............................................ 5

3.4 Minimum Required Installation Clearances .................5

3.5 Ventilation ....................................................................5

3.6 Gas Supply .................................................................. 5

3.7 Electrical Supply .......................................................... 5

3.8 Vent.............................................................................. 5

SECTION 4: Clearances to Combustibles.............................6

4.1 Required Clearances to Combustibles.........................6

4.2 Clearances to Combustibles ........................................ 6

SECTION 5: National Standards and Applicable Codes .....7

5.1 Gas Codes................................................................... 7

5.2 Aircraft Hangars ........................................................... 7

5.3 Parking Structures and Repair Garages......................7

5.4 Electrical ...................................................................... 7

5.5 Venting .........................................................................7

5.6 High Altitude ................................................................ 8

SECTION 6: Duct Heater Installation..................................... 9

6.1 General........................................................................9

6.2 Shelf Mounting and Suspension ................................ 10

6.3 Wall Mounting............................................................ 10

SECTION 7: Venting.............................................................. 12

7.1 Changing Vent and Air Intake Orientation .................. 12

7.2 Venting .......................................................................12

7.3 Vent Installation .......................................................... 12

7.4 Unvented Operation ................................................... 13

7.5 Horizontal Venting ......................................................13

7.6 Vertical Venting........................................................... 13

7.7 Length Requirements ................................................. 13

7.8 Vent Material............................................................... 14

7.9 Replacing an Existing Heater in a Venting System..... 14

SECTION 8: Air Supply......................................................... 18

8.1 Separated Combustion Installation ............................ 18

8.2 Unvented Installation ................................................. 18

8.3 Building Ventilation .................................................... 18

8.4 Outside Combustion Air Supply................................. 18

SECTION 9: Gas Piping........................................................19

9.1 Connections............................................................... 19

SECTION 10: Wiring ..............................................................21

10.1 Positioning Thermostats .......................................... 21

10.2 Low Voltage Thermostat with One Heater................21

10.3 UHD[X][S] Series Internal Wiring Diagram ...............22

10.4 UHD[X][S] Series Ladder Wiring Diagram................23

10.5 Electrical Connection to the Heater..........................24

SECTION 11: Operation and Maintenance ..........................25

11.1 Pre-Start-Up Checks.................................................25

11.2 Begin Start-Up ..........................................................25

11.3 Complete Start-Up ....................................................27

SECTION 12: User Instructions............................................28

12.1 Heater Operation......................................................28

12.2 Common User Controls............................................28

12.3 Lighting Instructions .................................................29

12.4 Simple Troubleshooting ............................................29

SECTION 13: Servicing.........................................................30

13.1 Servicing Instructions...............................................30

13.2 Burner Maintenance.................................................30

13.3 Heat Exchanger Maintenance ..................................30

13.4 Gas Valve Maintenance ...........................................30

13.5 Flue Blower..............................................................30

13.6 Venting and Air Intake Pipe......................................30

13.7 Maintenance Checklist .............................................31

SECTION 14: Troubleshooting.............................................33

14.1 General ....................................................................34

14.2 Troubleshooting For Automatic Ignition Burner

Systems ...................................................................35

14.3 Troubleshooting for Flame Supervision System .......36

14.4 Troubleshooting for Gas Valves................................37

14.5 Troubleshooting for Flue Blower ...............................37

SECTION 15: Replacement Parts.........................................38

15.1 Gas Valve.................................................................38

15.2 Burner Compartment ...............................................39

15.3 Ignition Electrode and Flame Probe .........................40

15.4 Heat Exchanger .......................................................40

15.5 Flue Blower Vertical Installation ...............................41

15.6 Pressure S

15.7 Ignition Control .........................................................42

15.8 Limit Switches ..........................................................42

SECTION 16: Specifications.................................................43

16.1 Dimension Data........................................................43

16.2 General Technical Data Table ..................................44

16.3 Technical Data Table ................................................44

SECTION 17: ROBERTS GORDON

witch........................................................42

COMBAT®

UHD-Series Warranty.....................................46

Printed in U.S.A.

TABLE OF FIGURES

Figure 1: UHD [X][S] 75 Label Placement ................................ 2

Figure 2: UHD [X][S] 100-125 Label Placement........................3

Figure 3: Clearances to Combustibles ......................................6

Figure 4: Air Flow Direction ....................................................... 9

Figure 5: Suspension Methods ............................................... 10

Figure 6: Shelf-Mounting Methods .......................................... 11

Figure 7: Wall Shelf Mounting and Suspension ...................... 11

Figure 8: Vent and Roof Detail ................................................ 14

Figure 9: Standard Vented Heater - Vertical and Horizontal

Vent Termination...................................................... 15

Figure 10: Standard Vented Heater - Common Vertical

Vent Termination...................................................... 15

Figure 11: Separated Combustion Heater - Vertical and

Horizontal Vent Termination..................................... 16

Figure 12: Concentric Vent Box............................................... 16

Figure 13: Concentric Vertical and Horizontal Vent

Termination - Separated Combustion Heater .......... 17

Figure 14: Gas Connection ..................................................... 20

Figure 15: Automatic Burner Control Sequence...................... 26

Figure 16: Gas Valve for Models UDH[X][S] 75 – 125.............26

Figure 17: Manual Reset Limit Switch .....................................29

Figure 18: LED Diagnostic Codes...........................................29

SECTION 1: HEATER SAFETY

Yo ur 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, at a minimum, 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 or service of this equipment. Heaters are not approved for residential installations. These instructions, the layout drawing, local codes and ordinances and applicable standards that apply to gas piping, electrical wiring, venting, etc. must be thoroughly understood before proceeding with the installation. Protective gear is to be worn during installation, operation and service. Thin sheet metal parts, including the various venting components, have sharp edges. To prevent injury, the use of work gloves is recommended.

SECTION 1: HEATER SAFETY

1.2 Safety Labels and Their Placement

Product safety signs or labels should be replaced by the product user when they are no longer legible. Please contact Roberts-Gordon LLC or your

ROBERTS GORDON

independent distributor to obtain replacement signs or labels. See Page 2, Figure 1 through Page 3, Figure 2.

1.3 California Proposition 65

In accordance with California Proposition 65 requirements, a warning label must be placed in a highly visible location on the outside of the equipment (i.e. near equipment's serial plate). See label placement drawing on Page 2, Figure 1 through Page 3, Figure 2 for label location. Avoid placing label on areas with extreme heat, cold, corrosive chemicals or other elements. To order additional labels, please contact Roberts-Gordon

LLC or your ROBERTS GORDON

independent

distributor.

Before installation, check that the local distribution conditions, nature of gas and pressure and adjustment of the appliance are compatible.

This heater must be applied and operated under the general concepts of reasonable use and installed using the best building practices. This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance. For additional copies of the Installation, Operation and Service Manual, please contact RobertsGordon LLC.

1.1 M anp o wer Re q uirements

To prevent personal injury and damage to the heater, two persons will be required for installation.

1 of 47

UHD LOW PROFILE DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL

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 91039802 Installation Label 91010431 Instruction Location Label 91010433 Lighting Instruction Label 91010425 Venting Arrangement Label* 91010426 Manual Reset Switch Label 91010428 Proposition 65 Label 91070015

* For separated combustion units only

Figure 1: UHD[X][S] 75 Label Placement

2 of 47

Figure 2: UHD[X][S] 100-125 Label Placement

WARNING

Printed in the U.S.A./Imprimé aux Etats-Unis P/N 91010429

www.rg-inc.com

Fire Hazard Some objects can catch fire or explode when placed close to heater. Keep all flammable objects, liquids and vapors the required clearances to combustibles away from heater.

Refer to installation manual for clearances and proper installation.

ATTENTION

Electrical Shock Hazard

Disconnect electrical power before servicing.

This appliance must be grounded.

Explosion Hazard

Connect fuel supply according to installation manual.

Improper installation can cause fuel leak.

Failure to follow these instructions can result in death, injury or property damage.

Le non-respect de ces instructions peut entraÎner de la mort,

des blessures ou des dégâts matériels.

Risque d'Incendie Certains objets peuvent s'enflammer ou s'exploser quand ils se trouvent près de l'appareil de chauffage. Eloigner tout objet, liquide, ou vapeur inflammable de l'appareil de chauffage. Les distances minimales de dégagement par rapport aux matériaux combustibles doivent être impérativement respectées. Reférer au manuel d'installation pour les distances de dégagement et les instructions pour un installation correct.

Risque de Choc Electrique

Débrancher le courant électrique avant toute intervention.

Cet appareil doit être mis à la terre.

Risque d'Explosion

Le service de gaz doit être connecté selon le manuel d'installation.

Un installation incorrect peut causer une fuite de gaz.

Lighting and Operation Instructions located on the other side of this panel. Les instructions d'allumage et d'operation sont situées à l'autre côté de ce panneau.

P/N 91010433

www.rg-inc.com

Printed in U.S.A. / Imprimé aux Etats Unis

Logo Label

Vent Length Label

WARNING

This heater must be installed in accordance with the manufacturer's instructions and local codes. In the absence of local codes, follow the National Fuel Gas Code, ANSI Z223.1 / NFPA 54 or the CAN/CSAB149 installation code.

Cet aérotherme doit être installé en accord avec les instructions du fabricant et les régulations locaux. S'il n'y a pas des régulations locaux, l'installation doit être en accord avec le Code National de Gaz de Carburant, ANSI Z223.1 / NFPA 54 ou le Code d'Installation, CAN/CSA-B149.

P/N 91010431 Rev Bwww.rg-inc.com

Printed in U.S.A. / Imprimé aux Etats Unis

Installation, modification, réglage ou maintenance incorrectes peuvent provoquer de la mort, des blessures ou des dégâts matériels. Liser attentivement le manuel d'installation, d'operations et d'entretien avant l'installation ou l'entretien de cet équipment.

A. This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the

burner. Do not try to light the burner by hand.

B. BEFORE OPERATING smell all around the appliance area for gas. Be sure to smell next to the ﬂoor because

some gas is heavier than air and will settle on the ﬂoor.

WHAT TO DO IF YOU SMELL GAS:

• Do not try to light any appliance. • Do not touch any electric switch; do not use any phone in your building.

• Immediately call your gas supplie

r from a neighbor's phone. Follow the gas supplier's instructions.

• If you cannot reach your gas supplier, call the ﬁre department.

C. Use only your hand to push in or turn the gas control knob. Never use tools. If the knob will not push in or

turn by hand, don't try to repair it, call a qualiﬁed service technician. Force or attempted repai

r may result in a

ﬁre or explosion.

D. Do not use this appliance if any part has been under water. Immediately call a qualiﬁed service technician to

inspect the appliance and to replace any part of the control system and any gas control which has been under water.

OPERATING INSTRUCTIONS

1. STOP! Read the safety information above on this label.

2. Set the thermostat to the lowest setting.

3. Turn off all electric power to the appliance.

4. This appliance is equipped with an ignition device. Do not try to light the burner by hand.

5. Remove control access panel.

6. Push in gas control knob slightly and turn clockwise to "OFF". NOTE: Knob cannot be turned to "OFF" unless it is pushed in slightly. Do not force.

7. Wait ﬁve (5) minutes to clear out any gas. Then smell for gas i

ncluding near the ﬂoor. if you smell gas, STOP! Follow "B" in the safety information above on this label. If you don't smell gas, go to the next step.

8. Turn gas control knob counterclockwise to "ON".

9. Replace control access panel.

10. Turn on all electric power to the appliance.

11. Set thermostat to desired setting.

12. If the appliance will not operate, follow the instructions "To Turn Off Gas to Appliance" below on this label and call your service techn

ician or

gas supplier.

TO TURN OFF GAS APPLIANCE

1. Set the thermostat to lowest setting.

2. Turn off all electric power to the appliance if service is to be performed.

3. Remove control access panel.

4. Push in gas control knob slightly and turn clockwise to "OFF".

Do not force.

5. Replace control access panel.

½PSI IN

OFF

A. Cet appareil ne comporte pas de veilleuse. Il est muni d'un dispositif d'allumage qui allume automatiquement

le brûleur. Ne tentez pas d'allumer le brûler manuellement.

B. AVANT DE FAIRE FONCTIONNER, reniﬂez tout autour de l'appareil pour déceler une odeur de gaz.

Reniﬂez près du plancher, car certains gaz sont plus lourds que l'air et peuvent s'accumuler

au niveau du sol.

QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:

• Ne pas tenter d'allumer d'appareil.

• Ne touchez à aucun interrupteur; ne pas vous servir des téléphones se trouvant dans le bâitment.

• Appelez immédiatement votre fournisseur de gaz depuis un voisin. Suivez les instructions de fournisseur.

• Si vous ne pouvez pas rejoindre le fournisseur, appelez le ser

vice des incendies.

C. Poussez ou tournez la manette d'admission du gaz qu'à la main; ne jamais utiliser d'outil. Si la manette reste

coincée, ne pas tenter de la réparer; appelez un technicien qualiﬁé. Le fait de forcer la manette ou de la réparer peut déclencher une explosion ou un incendie.

D. N'utilisez pas cet appareil s'il a été plongé dans l'ea

u, même partiellement. Faites inspecter l'appareil par un

technicien qualiﬁé et remplacez toute commande qui ont été plongés dans l'eau.

INSTRUCTIONS DE MISE EN MARCHE

1. ARRÊTEZ! Lisez les instructions de sécurité sur la portion supérieure de cette étiquette.

2. Appareil pourvu d'un thermostat réglable ou destiné à être utilisé avec un tel dispositif: Réglez le thermostat à la température la plus basse.

3. Appareil à alimentation électrique externe: Coupez l'alimentation électrique de l'appareil.

4. Fournir des instructions qui indiquent de ne pas te

nter d'allumer la veilleuse de façon manuelle.

5. Si des panneaux ou des pièces de l'appareil doivent être retirés pour atteindre la commande d'admission du gaz, des instructions doivent indiquer la marche à suivre.

6. Des instructions, et une illustration, doivent être fournies pour la fermeture complète (position OFF) du robinet de l'admissio

n du

gaz. Lorsqu'une rotation est requise, les mots et symboles suivants doivent être utilisés pour indiquer le sens de la rotation.

sens horaire sens antihoraire

7. Attendre cinq (5) minutes pour laisser échapper tout le gaz. Reniﬂez tout autour de l'appareil, y compris près du plancher, pour déceler

une ode

ur de gaz. Si vous sentez une odeur de gaz, ARRÊTEZ! Passez à l'étape B des

instructions de sécurité sur la portion supérieure de cette étiquette. S'il n'y a pas d'odeur de gaz, passez à l'étape suivante.

8. Fournir des instructions pour l'ouverture (position ON) du robinet manuel de l'admission de gaz.

9. Le cas échéant, fournir des instructions sur la réinstallation des panneau

x ou pièces d'accès à la

commande d'admission de gaz.

10. Le cas échéant: Mettez l'appareil sous tension.

11. Le cas échéant: Réglez le thermostat à la température désirée.

12. Fournir des instructions donnant les mesures à prendre si l'appareil ne fonctionne pas même si les instructions ci-dessus ont été respectées ainsi que l'énoncé suivant: Si l'appareil ne se met pas en marche, suivez les inst

ructions intitulées "Comment couper l'admission de gaz de l'appareil" et appelez un technicien qualiﬁé ou le fournisseur de gaz. Le fabricant peut spéciﬁer un intervalle plus long.

COMMENT COUPER L'ADMISSION DE GAZ DE L'APPAREIL

1. Le cas échéant: Réglez le thermostat à la température la plus basse.

2. Le cas échéant: Coupez l'alimentation électrique de l'appareil s'il faut procéder à l'entretien.

3. Le cas échéant, fournir des instructions sur la méthode à suivre pour atteindre la commande d'admission du gaz.

4. Fournir des instructions pour la fermeture complète (position OFF) du robinet manuel de l'admission du

gaz.

5. Le cas échéant, fournir des instructions sur la réinstallation des panneaux d'accès à la commande d'admission de gaz.

For Models 30/45 / Pour Modèles 30/45

For Models 60 - 400 / Pour Modèles 60 - 400

OFF

Gas valve shown in "OFF" position.

Le robinet de l'admission du gaz est en la position OFF.

WARNING

Explosion Hazard Read instructions completely before operating heater. Failure to follow these instructions can result in death, fire, explosion, injury or property damage.

Printed in the U.S.A/Imprimé aux Etats-Unis. P/N 91010425

www.rg-inc.com

ATTENTION

FOR YOUR SAFETY, READ BEFORE OPERATING

Risque d'Explosion

Liser ces instructions complètement avant l'opération de l'aerotherme.

Le non-respect de ces instructions peut entraîner du feu, de l'explosion, du mort, des blessures ou des dommages.

Pour votre sécurité, liser ces instructions avant l'opération de cet appareil.

WARNING

Printed in the U.S.A./Imprimé aux Etats-Unis P/N 91010429

www.rg-inc.com

Fire Hazard

Some objects can catch fire or explode when placed close to heater.

Keep all flammable objects, liquids and vapors the required clearances to combustibles away from heater.

Refer to installation manual for clearances and proper installation.

ATTENTION

Electrical Shock Hazard

Disconnect electrical power before servicing.

This appliance must be grounded.

Explosion Hazard

Connect fuel supply according to installation manual.

Improper installation can cause fuel leak.

Failure to follow these instructions can result in death, injury or property damage.

Le non-respect de ces instructions peut entraÎner de la mort,

des blessures ou des dégâts matériels.

Risque d'Incendie

Certains objets peuvent s'enflammer ou s'exploser quand ils se trouvent près de l'appareil de chauffage.

Eloigner tout objet, liquide, ou vapeur inflammable de l'appareil de chauffage. Les distances minimales de dégagement par rapport aux matériaux combustibles doivent être impérativement respectées.

Reférer au manuel d'installation pour les distances de dégagement et les instructions pour un installation correct.

Risque de Choc Electrique

Débrancher le courant électrique avant toute intervention.

Cet appareil doit être mis à la terre.

Risque d'Explosion

Le service de gaz doit être connecté selon le manuel d'installation.

Un installation incorrect peut causer une fuite de gaz.

Warning Label

Lighting Instructions Label

Lighting and Operation Instructions located on the other side of this panel. Les instructions d'allumage et d'operation sont situées à l'autre côté de ce panneau.

P/N 91010433

www.rg-inc.com

Printed in U.S.A. / Imprimé aux Etats Unis

Instruction Location Label

FRONT VIEW

BACK VIEW

ACCESS SIDE VIEW (OUTSIDE)

ACCESS SIDE VIEW (INSIDE)

Combat

WARNING

P/N 91010430

Cut Hazard Turn off electrical supply before maintenance. Fan can start automatically. Failure to follow these instructions can result in serious injury or property damage.

ATTENTION

Risque de Coupure Couper l'alimentation électrique avant l'entretien. Le ventilateur peut démarrer automatiquement à tout moment. Le non-respect de ces instructions peut entraîner desblessures graves ou des dommages.

Printed in U.S.A. / Imprimé aux Etats Unis

WARM AIR MODELS / Chauffages à l'air chaud Maximum Minimum

Models 30-75 Vent Combustion / Air Duct Length 25' (7.6 m) 3' (1 m) Longeur totale de l'évacuation de gaz ou l'alimentation en air pour les modèles 30 - 75 Models 100-400 Vent Combustion / Air Duct Length 40' (12.2 m) 3' (1 m) Longeur totale de l'évacuation de gaz ou l'alimentation en air pour les modèles 100 - 400

If using vent lengths greater than 5' (1.5 m), condensation will form in the vent pipe. Insulate the pipe to reduce formation of condensate. For Category IV appliances, condensate tee and drain must be used. L’emploi d’une

évacuation de gaz de plus de 5' (1.5 m) provoquera la formation de condensation dans le tuyau d’évacuation de gaz. Isolez le tuyau pour réduire la formation de condensation. Pour les appareils en catégorie IV, un pièce en T pour la condensation et un tuyau d'écoulement doivent être utilisés

SEE INSTALLATION MANUAL FOR PARTS LIST, METHOD OF INSTALLATION AND FURTHER VENTING DETAILS.

VOIR LE MANUEL D’INSTALLATION POUR PLUS DE RENSEIGNEMENTS.

WARNING ATTENTION

VENT HEATER TO OUTDOORS / ECHAPPEMENT DU BRULEUR A L'EXTERIEUR

VENT LENGTH RE QUIR EME NT / Exigence du Longeur de l'évacuation de Gaz

P/N 91039505

Printed in U.S.A./Imprimé aux États-Unis

www.rg-inc.com

Carbon Monoxide Hazard

This appliance requires a special venting system.

Heaters must be installed according to the installation manual.

Failure to follow these instructions can result in death or injury.

Risque d'Oxyde de Carbone

Cet appareil doit avoir un échappement spécial.

Les aérothermes doivent être installés selon le manuel d'installation.

Le non-respect de ces consignes peut entraîner de la mort ou des blessures.

Vent to Outdoors Label

WARM AIR MODELS / Chauffages à l'air chaud Maximum Minimum

SEE INSTALLATION MANUAL FOR PARTS LIST, METHOD OF INSTALLATION AND FURTHER VENTING DETAILS.

VOIR LE MANUEL D’INSTALLATION POUR PLUS DE RENSEIGNEMENTS.

WARNING ATTENTION

VENT HEATER TO OUTDOORS / ECHAPPEMENT DU BRULEUR A L'EXTERIEUR

VENT LE NGT H RE QUIR EMEN T / Exigence du Longeur de l'évacuation de Gaz

P/N 91039505

Printed in U.S.A./Imprimé aux États-Unis

www.rg-inc.com

Carbon Monoxide Hazard

This appliance requires a special venting system.

Heaters must be installed according to the installation manual.

Failure to follow these instructions can result in death or injury.

Risque d'Oxyde de Carbone

Cet appareil doit avoir un échappement spécial.

Les aérothermes doivent être installés selon le manuel d'installation.

Le non-respect de ces consignes peut entraîner de la mort ou des blessures.

WARNING

P/N 91010430

Cut Hazard

Turn off electrical supply before maintenance.

Fan can start automatically. Failure to follow these

instructions can result in serious injury or property damage.

ATTENTION

Risque de Coupure

Couper l'alimentation électrique avant l'entretien.

Le ventilateur peut démarrer automatiquement à tout moment.

Le non-respect de ces instructions peut entraîner des blessures graves ou des dommages.

Printed in U.S.A. / Imprimé aux Etats Unis

Cut Hazard Label

A. This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the

burner. Do not try to light the burner by hand.

B. BEFORE OPERATING smell all around the appliance area for gas. Be sure to smell next to the ﬂoor because

some gas is heavier than air and will settle on the ﬂoor.

WHAT TO DO IF YOU SMELL GAS:

• Do not try to light any appliance. • Do not touch any electric switch; do not use any phone in your building.

• Immediately call your gas supplie

r from a neighbor's phone. Follow the gas supplier's instructions.

• If you cannot reach your gas supplier, call the ﬁre department.

C. Use only your hand to push in or turn the gas control knob. Never use tools. If the knob will not push in or

turn by hand, don't try to repair it, call a qualiﬁed service technician. Force or attempted repai

r may result in a

ﬁre or explosion.

D. Do not use this appliance if any part has been under water. Immediately call a qualiﬁed service technician to

inspect the appliance and to replace any part of the control system and any gas control which has been under water.

OPERATING INSTRUCTIONS

1. STOP! Read the safety information above on this label.

2. Set the thermostat to the lowest setting.

3. Turn off all electric power to the appliance.

4. This appliance is equipped with an ignition device. Do not try to light the burner by hand.

5. Remove control access panel.

6. Push in gas control knob slightly and turn clockwise to "OFF". NOTE: Knob cannot be turned to "OFF" unless it is pushed in slightly. Do not force.

7. Wait ﬁve (5) minutes to clear out any gas. Then smell for gas i

ncluding near the ﬂoor. if you smell gas, STOP! Follow "B" in the safety information above on this label. If you don't smell gas, go to the next step.

8. Turn gas control knob counterclockwise to "ON".

9. Replace control access panel.

10. Turn on all electric power to the appliance.

11. Set thermostat to desired setting.

12. If the appliance will not operate, follow the instructions "To Turn Off Gas to Appliance" below on this label and call your service techn

ician or

gas supplier.

TO TURN OFF GAS APPLIANCE

1. Set the thermostat to lowest setting.

2. Turn off all electric power to the appliance if service is to be performed.

3. Remove control access panel.

4. Push in gas control knob slightly and turn clockwise to "OFF".

Do not force.

5. Replace control access panel.

½PSI IN

OFF

A. Cet appareil ne comporte pas de veilleuse. Il est muni d'un dispositif d'allumage qui allume automatiquement

le brûleur. Ne tentez pas d'allumer le brûler manuellement.

B. AVANT DE FAIRE FONCTIONNER, reniﬂez tout autour de l'appareil pour déceler une odeur de gaz.

Reniﬂez près du plancher, car certains gaz sont plus lourds que l'air et peuvent s'accumuler

au niveau du sol.

QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:

• Ne pas tenter d'allumer d'appareil.

• Ne touchez à aucun interrupteur; ne pas vous servir des téléphones se trouvant dans le bâitment.

• Appelez immédiatement votre fournisseur de gaz depuis un voisin. Suivez les instructions de fournisseur.

• Si vous ne pouvez pas rejoindre le fournisseur, appelez le ser

vice des incendies.

C. Poussez ou tournez la manette d'admission du gaz qu'à la main; ne jamais utiliser d'outil. Si la manette reste

coincée, ne pas tenter de la réparer; appelez un technicien qualiﬁé. Le fait de forcer la manette ou de la réparer peut déclencher une explosion ou un incendie.

D. N'utilisez pas cet appareil s'il a été plongé dans l'ea

u, même partiellement. Faites inspecter l'appareil par un

technicien qualiﬁé et remplacez toute commande qui ont été plongés dans l'eau.

INSTRUCTIONS DE MISE EN MARCHE

1. ARRÊTEZ! Lisez les instructions de sécurité sur la portion supérieure de cette étiquette.

2. Appareil pourvu d'un thermostat réglable ou destiné à être utilisé avec un tel dispositif: Réglez le thermostat à la température la plus basse.

3. Appareil à alimentation électrique externe: Coupez l'alimentation électrique de l'appareil.

4. Fournir des instructions qui indiquent de ne pas te

nter d'allumer la veilleuse de façon manuelle.

5. Si des panneaux ou des pièces de l'appareil doivent être retirés pour atteindre la commande d'admission du gaz, des instructions doivent indiquer la marche à suivre.

6. Des instructions, et une illustration, doivent être fournies pour la fermeture complète (position OFF) du robinet de l'admissio

n du

gaz. Lorsqu'une rotation est requise, les mots et symboles suivants doivent être utilisés pour indiquer le sens de la rotation.

sens horaire sens antihoraire

7. Attendre cinq (5) minutes pour laisser échapper tout le gaz. Reniﬂez tout autour de l'appareil, y compris près du plancher, pour déceler

une ode

ur de gaz. Si vous sentez une odeur de gaz, ARRÊTEZ! Passez à l'étape B des

instructions de sécurité sur la portion supérieure de cette étiquette. S'il n'y a pas d'odeur de gaz, passez à l'étape suivante.

8. Fournir des instructions pour l'ouverture (position ON) du robinet manuel de l'admission de gaz.

9. Le cas échéant, fournir des instructions sur la réinstallation des panneau

x ou pièces d'accès à la

commande d'admission de gaz.

10. Le cas échéant: Mettez l'appareil sous tension.

11. Le cas échéant: Réglez le thermostat à la température désirée.

ructions intitulées "Comment couper l'admission de gaz de l'appareil" et appelez un technicien qualiﬁé ou le fournisseur de gaz. Le fabricant peut spéciﬁer un intervalle plus long.

COMMENT COUPER L'ADMISSION DE GAZ DE L'APPAREIL

1. Le cas échéant: Réglez le thermostat à la température la plus basse.

2. Le cas échéant: Coupez l'alimentation électrique de l'appareil s'il faut procéder à l'entretien.

3. Le cas échéant, fournir des instructions sur la méthode à suivre pour atteindre la commande d'admission du gaz.

4. Fournir des instructions pour la fermeture complète (position OFF) du robinet manuel de l'admission du

gaz.

5. Le cas échéant, fournir des instructions sur la réinstallation des panneaux d'accès à la commande d'admission de gaz.

For Models 30/45 / Pour Modèles 30/45

For Models 60 - 400 / Pour Modèles 60 - 400

OFF

Gas valve shown in "OFF" position.

Le robinet de l'admission du gaz est en la position OFF.

WARNING

Explosion Hazard Read instructions completely before operating heater. Failure to follow these instructions can result in death, fire, explosion, injury or property damage.

Printed in the U.S.A/Imprimé aux Etats-Unis. P/N 91010425

www.rg-inc.com

ATTENTION

FOR YOUR SAFETY, READ BEFORE OPERATING

Risque d'Explosion Liser ces instructions complètement avant l'opération de l'aerotherme. Le non-respect de ces instructions peut entraîner du feu, de l'explosion, du mort, des blessures ou des dommages.

Pour votre sécurité, liser ces instructions avant l'opération de cet appareil.

Arrangement pour Ventilation: Pour les aérothermes à combustion séparée, la conduite de fumée et la prise d'air doivent être situées dans la même zone de pression. On peut utiliser le système, concentrique optionel. Voir le manuel d'installation, de fonctionnement et d'entretien pour les détails et les références de pièce. Ventiler l'aérotherme au t

ravers d'un mur ou d'un toit

avec une épaisseur minimum de 0" et une épaisseur maximum de 18".

*Venting Arrangement Label

Venting Arrangement: For separated combustion units, vent terminal and outside air intake must be located in the same pressure zone. Optional concentric vent kits may be used. See Installation, Operation and Service Manual for details and part numbers. Vent heater through wall/roof of minimum thickness 0", maximum thickness 18". Arrangement pour Ventilation: Pour les aérothermes à combustion séparée, la conduite de fumée et la prise d'air doivent être situées dans la même zone de pression. On peut utiliser le système, concentrique optionel. Voir le manuel d'installation, de fonctionnement et d'entretien pour les détails et les références de pièce. Ventiler l'aérotherme au t

ravers d'un mur ou d'un toit

avec une épaisseur minimum de 0" et une épaisseur maximum de 18".

Rating Plate Label

WARNING

P/N 91010431 Rev Bwww.rg-inc.com

Printed in U.S.A. / Imprimé aux Etats Unis

Proposition 65 Label

Installation Label

Description Part Number

* For separated combustion units only

VENT TO OUTDOORS DONNER VENT A DEHORS

Printed in U.S.A. / Imprimé aux Etats Unis

SECTION 1: HEATER SAFETY

P/N 91010427

3 of 47

UHD LOW PROFILE DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL

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 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.

• To use the information given in a layout drawing and in the manual together with the cited codes and regulations to perform the installation.

• To install the heater in accordance with the clearances to combustibles.

• To furnish all needed materials not furnished as standard equipment.

Do not use heater in area containing corrosive chemicals.

Refer to appropriate Material Safety Data Sheets (MSDS).

CAUTION

Product Damage Hazard

• To plan location of supports, vents and air intakes.

• To provide access for servicing.

• To provide the owner with a copy of this Installation, Operation and Service Manual.

• To never use heater as support for a ladder or other access equipment and never hang or suspend anything from heater.

• To ensure there is adequate air circulation around the heater and to supply air for combustion, ventilation and distribution in accordance with local codes.

• To provide a method that ensures that the air flow through the heat exchanger is

within the acceptable range indicated on the rating plate prior to energizing the heater, and that such air flow continues at least 90 seconds after the heater is de-energized.

• To ensure the heater is placed in an approved application.

2.1 Wall Tag

A laminated wall tag is included with the heater as a permanent reminder of the safety instructions and the importance of the required clearances to combustibles. Affix the tag by peeling off the backing of the adhesive strips on the rear surface and position the tag on a wall near the heater.

A copy of the wall tag (P/N 91039831) is illustrated on the back cover.

Know your model number. Model number is found on the heater and throughout the Installation, Operation and Service Manual.

Failure to follow these instructions can result in product damage.

Roberts-Gordon LLC cannot be responsible for ensuring that all appropriate safety measures are undertaken prior to installation; this is entirely the responsibility of the installer. It is essential that the contractor, the sub-contractor, or the owner identifies the presence of combustible materials, corrosive chemicals or halogenated hydrocarbons* anywhere in the premises.

* Halogenated Hydrocarbons are a family of chemical compounds characterized by the presence of halogen elements (fluorine, chlorine, bromine, etc.). These compounds are frequently used in refrigerants, cleaning agents, solvents, etc. If these compounds enter the air supply of the burner, the life span of the heater compo- nents will be greatly reduced. An outside air supply must be provided to the burners whenever the presence of these compounds is suspected. Warranty will be invalid if the heater is exposed to halogenated hydrocarbons.

2.3 National Standards and Applicable Codes

All appliances must be installed in accordance with the latest revision of the applicable standards and national codes. This refers also to the electric, gas and venting installation. Note: Additional standards for installations in public garages, aircraft hangars, etc. may be applicable.

4 of 47

SECTION 3: CRITICAL CONSIDERATIONS

3.1 Basic Information

UHD[X][S] heaters have automatic ignition burners for ON/OFF operation only.

SECTION 3: CRITICAL CONSIDERATIONS

•Must be installed in a manner which allows access to all serviceable components. See Page 6, Figure 3 for details.

3.2 Manufactured Units

Gas-fired, power-vented duct furnace 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 aluminized heat exchanger. Design and heat exchanger alternatives shall be offered as follows:

• Separated Combustion: A separated combustion unit shall feature an enclosed, sealed burner box. A piece of flexible air duct connects this burner box to a flange on the cabinet. Combustion air should be ducted from outside the heated space, with the ductwork connecting to the unit with the use of the flange.

• Stainless Steel Heat Exchanger: A stainless steel heat exchanger unit shall consist of heat exchanger tubes, heat exchanger tube supports, heat exchanger tube plates and vent box produced of 409 stainless steel. The use of stainless steel heat exchanger is

recommended when air inlet temperatures are below 40° F (4.4° C) or temperature rise is less than 40° F (22.2° C) as condensation may form on the heat exchanger resulting in corrosion that may shorten its life.

3.4 Minimum Required Installation Clearances

Clearances around the heater and vent must be as indicated on Page 6, Figure 3

and Page 14, Figure 8 to ensure access for servicing, and correct operation.

3.5 Ventilation

It is important to ensure that there is adequate air space around the heater to supply air for combustion, ventilation and distribution in accordance with local and national codes. See Page 12, Section 7.

3.6 Gas Supply

It is important that the gas supply pipe is sized correctly to provide the inlet pressure as stated on the heater data plate. The gas supply pipe and electrical connections must not support any of the heater's weight. See Page 20, Section 9.

3.7 Electrical Supply

A permanent 120 V /1 Ø/60 Hz electrical supply is required for the main electrical power. The heater also requires suitable controls in accordance with Page 22, Section 10.

3.3 Location and Suspension

All models:

•Must be installed indoors.

•Must be installed on the positive pressure side of the air circulation blower.

•Must be installed in a level position with horizontal discharge.

• May be mounted on a shelf of non-combustible material using shelf mounting brackets.(See Page 11, Figure 6 and Page 11, Figure 7 for details.)

• Drop rods must be a minimum of 3/8" diameter mild steel. Four suspension points (3/8" nuts) are located on top of the heater.

• May be suspended from above (See Page 10, Figure 5) or from wall brackets of sufficient strength to support the heater as listed in the Technical Data Table on Page 45, Section 16.2.

3.8 Vent

Choose heater orientation to allow for proper location of the vent. Each heater must be fitted with a correctly sized sealed vent system.

If vented horizontally, no other appliance may be connected to the vent. See Page 12, Section 7.

5 of 47

UHD LOW PROFILE DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL

WARNING

Fire Hazard

Keep all flammable objects, liquids and vapors the minimum required clearances 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.

Clearance to Vent: 2" (5 cm)

*18" (46 cm) minimum is necessary for servicing.

SECTION 4: CLEARANCES TO COMBUSTIBLES

4.1 Required Clearances to Combustibles

Clearances are the required distances that combustible objects must be away from the heater to prevent fire hazard. Combustible material that may catch fire include common items such as wood, paper, rubber, fabric, etc. Maintain clearances to combustibles at all times for safety. Clearances for all heater models are located on the serial plate of the heater and throughout the manual. Check the clearances on the serial plate to make sure the product is suitable for your application and the clearances are maintained. Read and follow the safety guidelines below:

• Keep gasoline or other combustible material including flammable objects, liquids, dust or vapors away from this heater or any other appliance.

• The stated clearances to combustibles represents a surface temperature of 90° F (50° C) above room temperature. Building materials with a low heat tolerance (such as plastics, vinyl siding, canvas, tri-ply, etc.) may be subject to degradation at lower temperatures. It is the installer's and owner's responsibility to assure that adjacent materials are protected from degradation.

•Consult local Fire Marshall, Fire Insurance Carrier or other authorities for approval of proposed installation when there is a possibility of exposure to combustible airborne materials or vapors.

4.2 Clearances to Combustibles

Clearances must be as indicated on Page 6, Figure

3. If clearances to combustibles are not indicated,

then installation clearances apply.

Figure 3: Clearances to Combustibles

6 of 47

SECTION 5: NATIONAL STANDARDS AND APPLICABLE CODES

5.1 Gas Codes

The type of gas appearing on the name plate must be the type of gas used. Installation must comply with national and local codes and requirements of the local gas company.

United States: Refer to NFPA 54/ ANSI Z223.1 latest revision, National Fuel Gas Code.

Canada: Refer to CSA B149.1 Natural Gas and Propane Installation Code.

5.2 Aircraft Hangars

Installation in aircraft hangars must be in accordance with the following codes:

United States: Refer to Standard for Aircraft Hangars, NFPA 409 - latest revision.

Canada: Refer to Standard CSA B149.1 Natural Gas and Propane Installation Code.

• In aircraft storage and servicing areas, heaters shall be installed at least 10' (3 m) above the upper surface of wings or of engine enclosures of the highest aircraft which may be housed in the hangar. The measurement shall be made from the wing or engine enclosure (whichever is higher from the floor) to the bottom of the heater.

• In shops, offices and other sections of aircraft hangars communicating with aircraft storage or servicing areas, heaters shall be installed not less than 8' (2.4 m) above the floor.

• Suspended or elevated heaters shall be so located in all spaces of aircraft hangars that they shall not be subject to injury by aircraft, cranes, movable scaffolding or other objects. Provisions shall be made to assure accessibility to suspended heaters for recurrent maintenance purposes.

5.3 Parking Structures and Repair Garages

Installation in garages must be in accordance with the following codes:

United States: Standard for Parking Structures NFPA 88A - latest revision or the Code for Motor Fuel Dispensing Facilities and Repair Garages, NFPA 30A - latest revision. Canada: Refer to CSA B149.1 Natural Gas and Propane Installation Code.

• In accordance with the Standard for Parking Structures NFPA 88A, heaters must be located a minimum of 18" (50 cm) below the floor-ceiling assembly or 18" (50 cm) above the floor.

• In accordance with the Code for Motor Fuel Dispensing Facilities and Repair Garages, NFPA 30A - latest revision, heaters must not be installed less than 8' (2.4 m) above the floor.

5.4 Electrical

The heater must be electrically grounded in accordance with the following codes:

United States: Refer to National Electrical

Code

, NFPA 70 - latest revision. Wiring must

conform to the most current National Electrical

, local ordinances and any special

Code diagrams furnished.

Canada: Refer to Canadian Electrical Code, CSA C22.1 Part 1 - latest revision.

5.5 Venting

The venting must be installed in accordance with the requirements within this manual and

the following codes:

United States: Refer to NFPA 54/ANSI Z223.1 latest revision, National Fuel Gas Code.

Canada: Refer to CSA B149.1 Natural Gas and Propane Installation Code.

7 of 47

UHD LOW PROFILE DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL

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. For installations from 2000' (610 m) to 4500' (1370m) in Canada, high altitude conversion kits are available. Heaters installed over 4500' (1370 m) in Canada are not approved and must be approved by the local or provincial authority.

8 of 47

SECTION 6: DUCT HEATER INSTALLATION

6.1 General

To connect the inlet and outlet ducts to the heater, Duct-Mate or similar flanges may be slid over the duct connector flanges supplied on the unit and secured with screws. The connection to the duct then can be made using the Duct-Mate clips. The ducts must have removable access panels upstream and downstream of the heater. These panels must be of appropriate size and placement so that smoke or reflected light could be observed to indicate the presence of leaks in the heat exchanger. Covers for these openings should be sealed to prevent leakage.

Any transition into the inlet of the heater should be smooth, with a taper of no more than 15 degrees. If elbows are required, they should be of either broad radius or fitted with properly designed air turns. Consult a professional to ensure air turns are properly designed.

The heater must be installed on the positive pressure side of the circulating air blower. Air flow through the heater must be as shown on Page 9, Figure 4 and may not be reversed. The air flo

w must be adjusted such that it is within the acceptable range shown on Page 9, Section 6.1.3. The

minimum inlet duct lengths shown on Page 9, Section 6.1.1 should be observed. Pressure drop through the heat exchanger at various air flows is given on Page 9, Section 6.1.2.

Figure 4: Air Flow Direction

OUTLET DUCT

AIR FLOW

INLET DUCT

6.1.1 Minimum Inlet Duct Length

Model Duct Length Duct Size (W X H)

UHD[X][S] 75 32" (81 cm) 16 3/4" x 15 7/8" (43 cm x 40 cm) UHD[X][S] 100 &125 37" (94 cm) 21 3/4" x 15 7/8" (55 cm x 40 cm)

6.1.2 Temperature Rise and Pressure Drop Ranges

UHD[X][S] 75 UHD[X][S] 100 UHD[X][S] 125

Airflow

(CFM)

850 68 0.06 950 78 0.05 1,020 92 0.06 1,200 48 0.10 1,500 50 0.18 1,650 57 0.14 1,625 36 0.16 2,500 31 0.28 2,340 41 0.27 1,965 30 0.22 3,000 26 0.39 3,480 28 0.56 2,450 24 0.31 3,300 24 0.46 4,240 23 0.80 2,650 22 0.36 3,660 22 0.55 4,750 20 0.98

Temperature

Rise (°F)

Pressure Drop

(in wc)

Airflow

(CFM)

Temperature

Rise (°F)

Pressure Drop

(in wc)

Airflow

(CFM)

Temperature

Rise (°F)

Pressure Drop

(in wc)

6.1.3 Air Flow and Temperature Rise Ranges

Model Rate Air Flow Temperature Rise

UHD[X][S] 75 75,000 850 2,650 22 68 UHD[X][S] 100 100,000 950 3,660 22 78 UHD[X][S] 125 125,000 1,020 4,750 20 92

(Btu/h) Minimum (CFM) Maximum (CFM) Minimum (°F) Maximum (°F)

9 of 47

UHD LOW PROFILE DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL

WARNING

Crush Hazard

Use 3/8" threaded rod minimum.

Failure to follow these instructions can result in death, injury or property damage.

6.2 Shelf Mounting and Suspension

Four suspension points (3/8" nuts) are located on the top of the heater. Drop rods must be 3/8" diameter mild steel minimum.

When handling or supporting the heater from below, ensure that the weight is taken at the support points. For typical suspension, See Page 10, Figure 5. For typical shelf mounting on existing shelf, See Page 11, Figure 6.

The gas or electrical supply lines must not be used to support the heater.

Do not locate the gas or electrical supply lines directly over the path of the flue products from the heater.

The heater must be installed in a location that is readily accessible for servicing.

The heater must be installed in accordance with clearances to combustibles as indicated on the wall tag and in this manual.

6.3 Wall Mounting

For typical suspension, See Page 11, Figure 7. Wall mounted heaters blowing parallel to the wall can only be installed with the service door away from the wall.

The wall mou suitable wall using all mounting holes. Screw sizes less than 3/8" may not be used. In order for the wall mounting brackets to adequately carry the weight of the heater, it must be installed according to best building practices.

nting brackets must be attached to a

Figure 5: Suspension Methods

10 of 47

+ 42 hidden pages

Roberts Gorden 125, 100, 75 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual