Roberts-Gordon 75 - Manuals

SECTION 1: H EATER S AFETY 1 of 47 SECTION 1: HEATER SAFETY Yo u r Safety is Important to Us! This symbol is u sed thro u gho u t the man u al to notify yo u of possible fire, electrical or b u rn hazards. Please pay special attention w hen reading and follo w ing the w arnings in these sections.Ins...

UHD L OW P ROFILE D UCT F URNACE I NSTALLATION O PERATION AND S ERVICE M ANUAL 2 of 47 Fi g ure 1: UHD[X][S] 75 Label Placement Description Part Number Logo Label 91040030 C u t Hazard Label 91010430 Vent Length Label 91039505 Vent to O u tdoors Label 91010427 Warning Label 91010429 Rating Plate Lab...

SECTION 1: H EATER S AFETY 3 of 47 Fi g ure 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 © 2006 Roberts-Gordon, LLC Fire Hazard Some objects can catch fire or explode when placed close to heater. Keep all flammable objects, l...

UHD L OW P ROFILE D UCT F URNACE I NSTALLATION O PERATION AND S ERVICE M ANUAL 4 of 47 SECTION 2: INSTALLER RESPONSIBILITY The installer is responsible for the follo w ing: • To install the heater, as w ell as the gas and electrical s u pplies, in accordance w ith applicable specifications and codes...

UHD L OW P ROFILE D UCT F URNACE I NSTALLATION O PERATION AND S ERVICE M ANUAL 6 of 47 SECTION 4: CLEARANCES TO COMBUSTIBLES 4.1 Re q uired Clearances to Combustibles Clearances are the req u ired distances that comb u stible objects m u st be a w ay from the heater to prevent fire hazard. Comb u st...

SECTION 5: N ATIONAL S TANDARDS AND A PPLICABLE C ODES 7 of 47 SECTION 5: NATIONAL STANDARDS AND APPLICABLE CODES 5.1 Gas Codes The type of gas appearing on the name plate m u st be the type of gas u sed. Installation m u st comply w ith national and local codes and req u irements of the local gas c...

UHD L OW P ROFILE D UCT F URNACE I NSTALLATION O PERATION AND S ERVICE M ANUAL 8 of 47 5.6 Hi g h Altitude These heaters are approved ( w itho u t modifications) for installations u p to 2000' (610 m) in US and Canada. Heaters installed above 2000' (610 m) m u st be de-rated. For installations above...

SECTION 6: D UCT H EATER I NSTALLATION 9 of 47 SECTION 6: DUCT HEATER INSTALLATION 6.1 General To connect the inlet and o u tlet d u cts to the heater, D u ct-Mate or similar flanges may be slid over the d u ct connector flanges s u pplied on the u nit and sec u red w ith scre w s. The connection to...

UHD L OW P ROFILE D UCT F URNACE I NSTALLATION O PERATION AND S ERVICE M ANUAL 10 of 47 6.2 Shelf Mountin g and Suspension Fo u r s u spension points (3/8" n u ts) are located on the top of the heater. Drop rods m u st be 3/8" diameter mild steel minim u m. When handling or s u pporting the ...

SECTION 6: D UCT H EATER I NSTALLATION 11 of 47 Fi g ure 6: Shelf-Mountin g Methods Fi g ure 7: Wall Shelf Mountin g and Suspension Shelf Mounting Brackets Description Part Number Qty. Shelf Mountin g Bracket Kit 120110 00K Shelf Mo u nting Bracket 11111510 2 Scre w #10 x 1/2" Type AB Phil HWH Z...

UHD L OW P ROFILE D UCT F URNACE I NSTALLATION O PERATION AND S ERVICE M ANUAL 12 of 47 SECTION 7: VENTING 7.1 Chan g in g Vent and Air Intake Orientation The heater is sold w ith rear horizontal vent and air intake connections as standard. (Only separated comb u stion models have air intake connect...

SECTION 7: V ENTING 13 of 47 Vents and air intakes must be ade q uately supported so that the heater does not bear the wei g ht of the pipes. For vent termination See Page 14, Figure 8 through Page 18, Figure 13 . 7.3.1 Standard Vented Heaters (Models UHD[X] 75 - 125) The vent m u st be fitted w ith...

UHD L OW P ROFILE D UCT F URNACE I NSTALLATION O PERATION AND S ERVICE M ANUAL 16 of 47 Fi g ure 10: Standard Vented Heater - Common Vertical Vent Termination Req u irements: • Maxim u m of fo u r heaters can be commonly vented thro u gh the roof. • Heaters m u st be of the same BTU o u tp u t. • He...

SECTION 7: V ENTING 17 of 47 Fi g ure 11: Separated Combustion Heater - Vertical and Horizontal Vent Termination Fi g ure 12: Concentric Vent Box Model Air Intake & Vent Diameter Part Number UHD[X]S 75 - 125 4" (10 cm) 90502102 4" (10 cm) Single W all V ent Pipe (By Others) Seal joint b ...

SECTION 8 : A IR S UPPLY 19 of 47 SECTION 8 : AIR SUPPLY 8 .1 Separated Combustion Installation When installed as a separated comb u stion heater (UHD[X]S), the air for comb u stion is dra w n in from o u tside the b u ilding. 8 .2 Unvented Installation It is important to ens u re that there is adeq...

SECTION 9: G AS P IPING 21 of 47 Fi g ure 14: Gas Connection • Hold gas nipple sec u rely w ith pipe w rench w hen attaching the flexible gas connector. • Do not t w ist flexible gas connector. • Ens u re all joints are gas tight. • Do not bend flexible gas connector sharply. CAUTION Hold gas nipple...

UHD L OW P ROFILE D UCT F URNACE I NSTALLATION O PERATION AND S ERVICE M ANUAL 22 of 47 SECTION 10: WIRING All heater models req u ire constant 120 V/1Ø/ 60 Hz po w er s u pply. Check heater rating plate for electrical rating for proper circ u it sizing. For servicing, a disconnect s w itch of prope...

SECTION 10: W IRING 23 of 47 10.3 UHD[X][S] Series Internal Wirin g Dia g ram IMPORTANT: For field w iring into service j u nction box, or if any of the original w ire s u pplied w ith the heater m u st be replaced, it m u st be replaced w ith w iring material having a temperat u re rating of at lea...

UHD L OW P ROFILE D UCT F URNACE I NSTALLATION O PERATION AND S ERVICE M ANUAL 24 of 47 10.4 UHD[X][S] Series Ladder Wirin g Dia g ram IMPORTANT: For field w iring into service j u nction box, or if any of the original w ire s u pplied w ith the heater m u st be replaced, it m u st be replaced w ith...

SECTION 10: W IRING 25 of 47 10.5 Electrical Connection to the Heater IMPORTANT: J u nction box is not provided w ith heater. Cond u it can also be attached directly to heater w ith w ire j u nction made w ithin the heater cabinet. BX Connector Junction Box Flexible Conduit Burner Connect wires toge...

UHD L OW P ROFILE D UCT F URNACE I NSTALLATION O PERATION AND S ERVICE M ANUAL 26 of 47 SECTION 11: OPERATION AND MAINTENANCE Read this man u al caref u lly before installation, operation, or service of this eq u ipment. All components are accessed via the door sec u red by sheet metal scre w s w it...

SECTION 11: O PERATION AND M AINTENANCE 27 of 47 Fi g ure 15: Automatic Burner Control Se q uence Fi g ure 16: Gas Valve for Models UHD[X][S] 75 – 125 Burner Se q uence for Ignition Control Flame Signal Start Gas V al v e Ignition Spark Thermostat 24 V SHUT DO WN RU N START ts = 10 Seconds Signals O...

SECTION 12: U SER I NSTRUCTIONS 29 of 47 SECTION 12: USER INSTRUCTIONS The UHD[X][S] Series heaters are f u lly a u tomatic and operate from the external controls fitted on site. The only u ser control at the heater is the Man u al Reset Limit S w itch - See Page 30, Section 12.3 . See Page 41, Figu...

UHD L OW P ROFILE D UCT F URNACE I NSTALLATION O PERATION AND S ERVICE M ANUAL 30 of 47 Fi g ure 17: Manual Reset Limit Switch 12.3 Li g htin g Instructions 12.3.1 To Turn On Heater 1. Ens u re that the electrical and gas s u pplies to the heater are on. Check that the on site controls are "ON&#...

SECTION 13: S ERVICING 31 of 47 SECTION 13: SERVICING 13.1 Servicin g Instructions After start- u p, the heater w ill req u ire maintenance to be carried o u t, at a minim u m, ann u ally. If the heater is u sed in a dirty or d u sty area, more freq u ent maintenance may be req u ired. IMPORTANT: Af...

UHD L OW P ROFILE D UCT F URNACE I NSTALLATION O PERATION AND S ERVICE M ANUAL 32 of 47 13.7 Maintenance Checklist Installation Code and Annual Inspections: All installation and service of ROBERTS GORDON ® eq u ipment m u st be performed by a contractor q u alified in the installation and service of...

SECTION 13: S ERVICING 33 of 47 Combustion Air Intake Pipe Intake pipe and inlet m u st be intact. Look for obstr u ctions, cracks on the pipe, gaps in the sealed areas or corrosion. The area m u st be free of dirt and d u st. Clean and reinstall as req u ired. See Page 19, Section 8 Heat Exchan g e...

UHD L OW P ROFILE D UCT F URNACE I NSTALLATION O PERATION AND S ERVICE M ANUAL 34 of 47 SECTION 14: TROUBLESHOOTING Cut/Pinch Hazard Wear protective gear during installation, operation and service. Edges are sharp. WARNING Failure to follow these instructions can result in death, electric shock, inj...

SECTION 14: T ROUBLESHOOTING 35 of 47 14.1 General Ensure air flow through the heat exchanger is appropriate per the rating plate. If pro b lems persist, contact Ro b erts-Gordon LLC at www.rg-inc.com Heater Operating TROUBLESHOOT ENDS. N o Replace limit switch. The limit switch has tripped. See Man...

UHD L OW P ROFILE D UCT F URNACE I NSTALLATION O PERATION AND S ERVICE M ANUAL 36 of 47 14.2 Troubleshootin g For Automatic I g nition Burner Systems If pro b lems persist, contact Ro b erts-Gordon LLC at www.rg-inc.com Heater Operating TROUBLESHOOT ENDS. N o Trace fault in super v ision system. See...

SECTION 14: T ROUBLESHOOTING 37 of 47 14.3 Troubleshootin g for Flame Supervision System NOTE: Minim u m flame probe c u rrent 1 μ A DC. Typical flame probe c u rrent 3-5 μ A DC. Repair or replace as re q uired. If pro b lems persist, contact Ro b erts-Gordon LLC at www.rg-inc.com Replace ignition c...

UHD L OW P ROFILE D UCT F URNACE I NSTALLATION O PERATION AND S ERVICE M ANUAL 38 of 47 14.4 Troubleshootin g for Gas Valves 14.5 Troubleshootin g for Flue Blower V al v e faulty. Replace with one of correct type. Fault elsewhere. Correct pressure pro b lem. If pro b lems persist, contact Ro b erts-...

SECTION 15: R EPLACEMENT P ARTS 39 of 47 SECTION 15: REPLACEMENT PARTS See w arnings and notes on Page 31, Section 13 before removing or replacing parts Burner Components All serviceable b u rner parts are accessed by the door on the side of the heater. Remove the sheetmetal scre w s. 15.1 Gas Valve...

UHD L OW P ROFILE D UCT F URNACE I NSTALLATION O PERATION AND S ERVICE M ANUAL 40 of 47 15.2 Burner Compartment 15.2.1 Burner Injectors Remo v e flexi b le air duct from spigot V iewing port for flame pro b e Flame Pro b e BurnerCompartmentCo v er Ignition Electrode Remo v e screws and pull off b ur...

SECTION 15: R EPLACEMENT P ARTS 41 of 47 15.3 I g nition Electrode and Flame Probe 15.4 Heat Exchan g er The heat exchanger consists of a six-pass design w ith 1.5" o u ter diameter [al u minized steel] [409 stainless steel] t u be. The t u be plates are made of [al u minized steel] [409 stainle...

UHD L OW P ROFILE D UCT F URNACE I NSTALLATION O PERATION AND S ERVICE M ANUAL 42 of 47 15.5 Flue Blower Vertical Installation IT IS IMPORTANT THAT ONLY THE CORRECT FLUE BLOWER SPECIFIED FOR EACH MODEL TYPE IS USED WHEN REPLACING THESE ITEMS. Carry o u t a start- u p after w orking on or changing a ...

SECTION 15: R EPLACEMENT P ARTS 43 of 47 15.6 Pressure Switch P u ll off 3 w ay connector. Spring open plastic clips of mo u nting cradle. Replace w ith correct type of press u re s w itch for model. The press u re s w itches are color coded for each press u re setting. Carry o u t a start- u p afte...

UHD L OW P ROFILE D UCT F URNACE I NSTALLATION O PERATION AND S ERVICE M ANUAL 44 of 47 SECTION 16: SPECIFICATIONS 16.1 Dimension Data Model A B C D E F G H J K L M N P Q R S T UHD[X][S] 75 in (cm) 28.572.4 17.6 44.7 20.3 51.6 17.6 44.7 16.642.2 1.25 3.2 6.3 16.0 6.1 15.5 2.8 7.1 1.6 4.1 3.48.6 6.7 ...

SECTION 16: S PECIFICATIONS 45 of 47 16.2 General Technical Data Table *Do not exceed the maximum length of flue s tated or heater may not operate properly. 16.3 Technical Data Table Model UHD[X][S] 75 UHD[X][S] 100 UHD[X][S] 125 F u ll Load Amps @ 120 V A 1 2 2 Minim u m Air Vol u me CFM 850 950 10...

SECTION 17: ROBERTS GORDON ® COMBAT ® UHD-S ERIES W ARRANTY 47 of 47 SECTION 17: ROBERTS GORDON ® COMBAT ® UHD-SERIES WARRANTY ROBERTS-GORDON LLC WILL PAY FOR: Within 24 months from date of p u rchase by b u yer or 27 months from the date of shipment by Roberts-Gordon LLC ( w hichever comes first), ...

® OWNER WARRANTY REGISTRATION CARD About the Owner: Name:__________________________________________________________________________________________________Add r ess:______________________________________City:_________________________ S tate:__________Zip Code:________ Pho n e:_______________________...