Gebruiksaanwijzing /service van het product 250 van de fabrikant Roberts Gorden
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Installation, Operation & Ser vice Manual Models UHA[S] 150, 175, 200, 225 250, 300, 350, 400 P / N 1111 0 1 N A 1 0 / 0 7 R e v . D UHA-Series T ubular Unit Heaters (Standard Range) W ARNING FOR Y OUR SAFETY If you smell g as: 1 . Open windo ws. 2.
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© 2007 R ober ts-Gordon, LLC All rights reserved. No part of this work cover ed by the cop yr ights her ein may be r eproduced or copied in any form or by any means - graphic, electr onic, or mechani.
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TABLE OF FIGURES Figur e 1: Installation Clearances and Clearances to Comb ustibles ..................... .............. .............. ............ 4 Fi gure 2: Suspension Methods .......................... .............. ......... 6 Figur e 3: V ent and R oof Detail .
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SECTION 1: H EATER S AF ETY 1 SECTION 1: HEATER SAFETY Y our Saf et y is Important to Us! This sy mbol is used thr oughout the manual t o notify you of possib le fir e, electrical or burn hazar ds. Please pa y special at tention when r eading and f ollowing the w ar nings in these sections.
COMB A T ® UHA U NIT H EATE R I NSTALLATION O PERATION AND S ERVICE M ANUAL 2 SECTION 2: INSTALLER RESPONSIBILITY The installer is r esponsible for the f ollow ing: • T o install the heat er , as well as the g as and electrical supplies, in accor dance with applicab le specifications and codes .
SECTION 3: C RITIC AL C ONSIDERATIONS 3 SECTION 3: CRITICAL CONSI DERATIONS 3.1 Basic Inf ormation UHA(S) heater s hav e automatic ignition b ur ners f or ON/OFF operation only . 3.2 Location and Suspension All models: • Must be inst alled indoors .
W ARNING Fire Hazard Some objects will catch fire or explode when placed close to heater . Keep all flammable objects, liquids and vapors the required clearances to combustibles a way from heater . Failure to follo w these instructions can result in death, injury or property damage.
SECTION 4: N ATIONAL S TANDARDS AND A PPLICABLE C ODES 5 SECTION 4: NATIONAL STANDARDS AND APPLICABLE CODES 4.1 Gas Codes The type of gas appearing on the nameplat e must be the type of gas used. In stallation must comply with nationa l and local codes and requir ements of the local gas compan y .
COMB A T ® UHA U NIT H EATE R I NSTALLATION O PERATION AND S ERVICE M ANUAL 6 SECTION 5: MAJOR COMPONENTS 5.1 Gener al Heater s are designed f or installation abo v e 6' (1 .8 m). These heater s must be installed w ithin the heated space. D uct delivery sy stems a re not permitt ed with axial f an units.
SECTION 6: V ENTI NG 7 SECTION 6: V ENTING 6.1 V enting This heat er must be v ented in accor dance with the rules contained in this man ual and w ith the f ollowing national codes and an y state , pro vincial or local codes which ma y apply: United States: Re f e r to NFP A 54/ANSI Z223.
COMB A T ® UHA U NIT H EATE R I NSTALLATION O PERATION AND S ERVICE M ANUAL 8 6.2.2 Separ ated Comb ustion Heater s (Models UHA S 150 - 400) The heat ers ar e designed to b e installed as separat ed combustion heat ers. Th e vent a nd air intak e are run as separat e pipes t o the wall or roo f te r mi nal s.
SECTION 6: V ENTI NG 9 6.7 V ent Mat erial V ent material may be single w all 26 ga. (minimum) gal vaniz ed steel or equal thic kness stainless st eel. Comp letely seal all joint s, r efer t o Pa g e 7 , Section 6.2 . If penetrating a comb ustible w all or roof , a listed thimbl e with 2" (5 cm) clear ance must be used.
COMB A T ® UHA U NIT H EATE R I NSTALLATION O PERATION AND S ERVICE M ANUAL 10 F igure 5: Standar d V ented Heat er - Common V er tical V ent T er mination Roof 1 8" (46 cm) Min. T ype "B" vent cap (7" or 8") may be used. (These are not a vailable from R ober ts-Gordon.
SECTION 6: V ENTI NG 11 F igur e 6: Separat ed Combustion Heat er - V ertical and Horizontal V ent T ermination V ent T er mination Listed Thimble thr ough Comb ustible Wall V ent 1 2" (31 cm) Minimum from wall to v ent ter mination.
COMB A T ® UHA U NIT H EATE R I NSTALLATION O PERATION AND S ERVICE M ANUAL 12 F igure 8: Concen tric V ertical and Horiz ontal V ent T er mination V ent Air Int ake* Concentric V ent Bo x V er tical.
SECTION 7: A IR S UPPLY 13 SECTION 7: AIR SUPPLY 7 .1 Separ ate d Combustion In stallation When installed as a separ ated comb ustion heat er , the air f or combustion is dra wn in from outside the buildin g. It is important to ensur e that there is adequat e space around heater t o pro vide air f or the axial air distribution f an.
COMB A T ® UHA U NIT H EATE R I NSTALLATION O PERATION AND S ERVICE M ANUAL 14 SECTION 8: GAS PIPING W ARNING Fire Hazard Connect gas supply according to Figure 9. Gas can lea k if not installed properly . Failure to follo w these instructions can result in death, injury or property damage.
SECTION 9: W IR I NG 15 SECTION 9: WIR ING W ARNING Electrical Shoc k Hazard Disconnect electrical power and gas supply before servicing. This appliance must be connected to a properly grounded electrical source. Failure to follow these instructions can result in death or electrical shoc k .
COMB A T ® UHA U NIT H EATE R I NSTALLATION O PERATION AND S ERVICE M ANUAL 16 9.3 UHA(S) Series Int ernal W iring Dia gram BLUE BLACK BLACK ORANGE ORANGE YELLOW BROWN BLACK WHITE WHITE L2 L1 ORANGE .
SECTION 9: W IR I NG 17 9.4 UHA(S) Ser ies Ladder Wir ing Diagr am FLAME SENSOR PRESSURE SWITCH THERMOST A T CONNECTION 6 3 4 5 2 1 1 2 0 VAC TRANSFORMER COMBUSTION BL O WER CIRCULA TION F AN CIRCULA .
COMB A T ® UHA U NIT H EATE R I NSTALLATION O PERATION AND S ERVICE M ANUAL 18 9.5 Electrical Connec tion to the Hea ter BX Connect or Junction Bo x Fle xible C onduit Burner Connect wir es together with suitab le approv ed wir e connect ors .
SECTION 1 0: O PERATION AND M AINT ENANCE 19 SECTION 1 0: OPER ATION AND MAINTENANCE Installation, service, and ann ual inspection of the heat er must be done b y a contract or qualified in the installation and service of gas-f ired heating equipment.
COMB A T ® UHA U NIT H EATE R I NSTALLATION O PERATION AND S ERVICE M ANUAL 20 F igure 1 0: Aut omatic Burner Control Sequence Burner Sequence for Ignition Contr ol Flame Signal Start Gas V alv e Ign.
SECTION 1 0: O PERATION AND M AINT ENANCE 21 1 0.2.2 Start-Up the Gas V alv e (All Gases) 1 0.2.2.1 Chec k Burner Gas P ressur e 1 . R emov e the plug in the outlet (burner) pressur e test point and connect a pr essur e tap and a manom et er . 2. With the b ur ner f iring, measur e the pressur e on the manomet er .
COMB A T ® UHA U NIT H EATE R I NSTALLATION O PERATION AND S ERVICE M ANUAL 22 SECTION 1 1: USER INSTRUCTIONS 1 1 .1 User Instr uctions The UHA(S) Series heater s are fully aut omatic and operat e from the e xternal controls f itt ed on site . W ARNING Electrical Shoc k Hazard Disconnect electrical pow er before servicing.
W ARNING FOR Y OUR SAFETY If you smell g as: 1 . Open windo ws. 2. DO NO T try to light an y appliance. 3. DO NO T use electrical s witches. 4. DO NO T use any t elephone in your b uilding. 5. Leav e the build ing. 6. Immediatel y call your local gas supplier af ter leaving the b uilding.
COMB A T ® UHA U NIT H EATE R I NSTALLATION O PERATION AND S ERVICE M ANUAL 24 SECTION 1 2: SER VICING 1 2.1 Ser vicing Instr uctions Af ter start-up, the heat er will re quire maint enance to be carried out annually . If the heat er is used in a dir ty or dust y ar ea, more fr equent maintenance ma y be necessary .
SECTION 1 2: S ERVICING 25 1 2.8 Maintenance Checklist W ARNING Explosion Hazard Service and annual inspection must be done b y a contract or qualified in the installation and service of gas-fir ed heating equipment or your gas supplier . T urn of f gas and electrical supplies bef ore performing service or maintenance.
COMB A T ® UHA U NIT H EATE R I NSTALLATION O PERATION AND S ERVICE M ANUAL 26 Burner Observ ation Win dow Mak e sure it is clean and fr ee of crac ks or holes. Clean and r eplace as r equired. Combu stion F an Scroll, Wheel and Mot or Compr essed air or a vacuum clea ner ma y be used to clean dust and dir t.
SECTION 1 3: T R OUBLESHOOTING 27 SECTION 1 3: T R OUBLESHOOTING 1 3.1 General Ensure pr oper air flow clearance f or axial fan. Open louver s slightly . Replace axial f an if it does not operate . If prob lems persist, contact Roberts-Gordon, LLC at www .
COMB A T ® UHA U NIT H EATE R I NSTALLATION O PERATION AND S ERVICE M ANUAL 28 1 3.2 T r oubleshootin g F or A uto matic Ignition Burner S yst ems If prob lems persist, contact Roberts-Gordon, LLC at www .rg-inc.com Heater Operating TROUBLESHOO T ENDS.
SECTION 1 3: T R OUBLESHOOTING 29 1 3.3 T r oubleshooting f or Flame Supervision S yst em NO TE: Minimum flame pr obe current 1 μA DC . T ypical flame pr obe current 3-5 μA DC . Repair or r eplace as necessary . If prob lems persist, contact Roberts-Gordon, LLC at www .
COMB A T ® UHA U NIT H EATE R I NSTALLATION O PERATION AND S ERVICE M ANUAL 30 1 3.4 T r oubleshooting fo r Gas V alv es V alve f ault y . Replace with one of correct type. F ault elsewhere. Corr ect pressure pr oblem. If prob lems persist, contact Roberts-Gordon, LLC at www .
SECTION 1 4: R EPLACEMENT P ARTS 31 SECTION 1 4: REPLACEMENT P AR TS See warnings and not es on P age 24, Section 1 2 bef ore remo ving or replacing par ts . Burner Componen ts All ser viceab le burner par ts are accessed b y the door on the side of the heat er .
COMB A T ® UHA U NIT H EATE R I NSTALLATION O PERATION AND S ERVICE M ANUAL 32 1 4.2 Burner Compartment Remo ve f le xible air duct from spigot Remo ve access plate Remo ve scr ews and pull of f burn.
SECTION 1 4: R EPLACEMENT P ARTS 33 1 4.3 Ignition Electrode and Flame P robe Flame P robe Ignition Electrode Remo ve Sc rew Ignition Electrode Burners Flame P robe Burners Burner Compar tment F ront Views Remo ve all burner compar tment scre ws to remo ve the burner compar tment and access the "F ront View".
COMB A T ® UHA U NIT H EATE R I NSTALLATION O PERATION AND S ERVICE M ANUAL 34 1 4.4 Combustion F an V er tical Installation V ent Box Outlet Gasket Flue Fan V ent Box Screws Flue Adapter Flue Adapter to Flue Fan screws Rear Panel Hole Disconnect electrical connections at plug in tabs.
SECTION 1 4: R EPLACEMENT P ARTS 35 1 4.5 Pr essure S witch P ull of f 3 wa y connector . Spring open plastic clips of mounting cradle . Repla ce with correct type of pr essure s witch f or model. The pr essure s witches are colo r coded f or each pressur e set ting.
COMB A T ® UHA U NIT H EATE R I NSTALLATION O PERATION AND S ERVICE M ANUAL 36 1 4.6 Ignition Control The contr ol mounts t o the electrical plate . P ull out ignition cab le and w iring from boar d, noting their positions. Re lease the f our mounting st andof fs.
SECTION 1 5: S PECIFICATIONS 37 SECTION 1 5: SPECIFICATIONS 1 5.1 Standard (Models 1 50 - 40 0) UHA(S) Series Dimension Data A B Rear View End View Z 25 1/2" (65 cm) 6 1/2" (17 cm) Gas Supply F G H T op View I E C D 77 Heater must be supported at these points from abov e or below .
COMB A T ® UHA U NIT H EATE R I NSTALLATION O PERATION AND S ERVICE M ANUAL 38 1 5.2 General T echni cal Data T able (All Models) Model UHA[S] 15 0 UHA[S] 17 5 UHA[S] 20 0 UHA[S] 225 UHA[S] 250 UHA[S] 30 0 UHA[S] 350 UHA[S] 40 0 F ull Load Amps @ 1 15 V A 5.
SECTION 1 6: T HE RO BERTS GORDON ® COMB A T ® UHA-S E - 39 SECTION 1 6: THE ROBERTS GORDON ® COMB A T ® UHA -SERIES W ARRANTY ROBER TS-GORDON WILL P A Y FOR : Wit hin 24 months fr om dat e of pur.
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10 ' (3 m) W ARNING © 2007 Roberts-Gordon, LLC www.rg-inc.com Printed in U .S.A. P/N 91040031 Re v B At tach this infor mation to the wall near the R OBERTS GORDON ® heater Read the Installation, Operation and Service Manual thoroughl y befor e installation, operation or service.
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