Roberts-Gordon 150 - Manuals

SECTION 1: H EATER S AFETY 1 of 51 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...

UHA S TANDARD U NIT H EATER I NSTALLATION O PERATION AND S ERVICE M ANUAL 2 of 51 Fi g ure 1: UHA[X][S]150 - 175 Label Placement *For separated comb u stion u nits only. Description Part Number Logo Label 91040030 C u t Hazard Label 91010430 Vent Length Label 91039505 Vent to O u tdoors Label 910104...

SECTION 1: H EATER S AFETY 5 of 51 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. Roberts-Gordon LLC recommends the installer contac...

UHA S TANDARD U NIT H EATER I NSTALLATION O PERATION AND S ERVICE M ANUAL 6 of 51 SECTION 3: CRITICAL CONSIDERATIONS 3.1 Basic Information UHA[X][S] heaters have a u tomatic ignition b u rners for ON/OFF operation only. 3.2 Manufactured Units Gas-fired, po w er-vented u nit heater w ith t u b u lar ...

SECTION 4: C LEARANCES TO COMBUSTIBLES 7 of 51 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 serio u s fire hazards. Comb u stibles are materials that catc...

UHA S TANDARD U NIT H EATER I NSTALLATION O PERATION AND S ERVICE M ANUAL 8 of 51 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...

SECTION 5: N ATIONAL S TANDARDS AND A PPLICABLE C ODES 9 of 51 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 2000' (610 m) in US, co...

UHA S TANDARD U NIT H EATER I NSTALLATION O PERATION AND S ERVICE M ANUAL 10 of 51 SECTION 6: HEATER INSTALLATION 6.1 General Heaters are designed for installation above 6' (1.8 m). These heaters m u st be installed w ithin the heated space. D u ct delivery systems are not permitted w ith axial fan ...

SECTION 7: V ENTING 11 of 51 SECTION 7: VENTING 7.1 Ventin g This heater m u st be vented in accordance w ith the r u les contained in this man u al and w ith the follo w ing national codes and any state, provincial or local codes w hich may apply: United States: Refer to NFPA 54/ANSI Z223.1 - lates...

UHA S TANDARD U NIT H EATER I NSTALLATION O PERATION AND S ERVICE M ANUAL 12 of 51 7.2.1 Standard Vented Heaters (Models UHA[X] 150 - 400) The vent m u st be fitted w ith a lo w resistance terminal. See Page 13, Figure 6 through Page 14, Figure 7 . Standard vented heaters do not allo w o u tdoor air...

SECTION 7: V ENTING 15 of 51 Fi g ure 8 : 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. • Heaters m u st be controlled by a common thermostat, • Connec...

UHA S TANDARD U NIT H EATER I NSTALLATION O PERATION AND S ERVICE M ANUAL 16 of 51 Fi g ure 9: Separated Combustion Heater - Vertical and Horizontal Vent Termination Fi g ure 10: Concentric Vent Box 12" (31 cm) Minimum from air inlet to v ent termination. V ent Termination Listed Thim b le throu...

UHA S TANDARD U NIT H EATER I NSTALLATION O PERATION AND S ERVICE M ANUAL 18 of 51 SECTION 8 : AIR SUPPLY 8 .1 Separated Combustion Installation When installed as a separated comb u stion heater (UHA[X]S), the air for comb u stion is dra w n in from o u tside the b u ilding. It is important to ens u...

UHA S TANDARD U NIT H EATER I NSTALLATION O PERATION AND S ERVICE M ANUAL 20 of 51 Fi g ure 12: Gas Connection Gas Shut-off V al v e Drip Leg Cap Union Connection Option B: Medium or Hea v y Gauge PipeGas Connector Option A: Stainless SteelFlexi b le Gas Connector CAUTION Hold gas nipple securely wi...

SECTION 10: W IRING 21 of 51 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 proper electrical rating sho u ld be installed in the vicinit...

UHA S TANDARD U NIT H EATER I NSTALLATION O PERATION AND S ERVICE M ANUAL 24 of 51 10.5 UHA[X][S] Series Internal Wirin g Dia g ram Bl u e Black Black O r a n ge Yellow B r ow n Black White White L2 L1 Black Black G r ee n White White G r ee n G r ee n Bl u e Black Black Black White G r ee n Bl u e ...

UHA S TANDARD U NIT H EATER I NSTALLATION O PERATION AND S ERVICE M ANUAL 26 of 51 10.7 Electrical Connection to the Heater Note: 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 Juncti...

SECTION 11: O PERATION AND M AINTENANCE 27 of 51 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 hinged door sec u red by tooled access. Opening the door exposes live electrical conne...

UHA S TANDARD U NIT H EATER I NSTALLATION O PERATION AND S ERVICE M ANUAL 28 of 51 11.2 Be g in Start-Up 11.2.1 Before Operatin g the Heater To ens u re that all the controls are in safe w orking order, operate the heater for the first time w ith the isolating gas valve t u rned off and po w er s u ...

SECTION 11: O PERATION AND M AINTENANCE 29 of 51 Fi g ure 14: Gas Valve for Models UHA[X][S] 150 - 400 11.2.2 Start-Up the Gas Valve (All Gases) 11.2.2.1 Check Burner Gas Pressure 1. Remove the pl u g in the o u tlet (b u rner) press u re test point and connect a press u re tap and a manometer. 2. W...

SECTION 12: U SER I NSTRUCTIONS 31 of 51 SECTION 12: USER INSTRUCTIONS The UHA[X][S] Series heaters are f u lly a u tomatic and operate from the external controls fitted on site. 12.1 Heater Operation When the heater has been s w itched on by the thermostat installed on site, the main b u rner w ill...

UHA S TANDARD U NIT H EATER I NSTALLATION O PERATION AND S ERVICE M ANUAL 32 of 51 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...

SECTION 13: S ERVICING 33 of 51 13.7 Ventin g and Air Intake Pipe Inspect all venting and air intake pipe. Ens u re that all seams are sealed and s u spension points sec u re. Repair s u spension points if any part of the venting or comb u stion air pipe is sagging. Check to make s u re any ins u la...

UHA S TANDARD U NIT H EATER I NSTALLATION O PERATION AND S ERVICE M ANUAL 34 of 51 Heat Exchan g er Make s u re there are no cracks. See Page 19, Section 9 . Make s u re there is no sagging, bending or distortion. Clean or replace as req u ired. Gas Line and Shut-off Valves Check for gas leaks. See ...

SECTION 14: T ROUBLESHOOTING 35 of 51 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, injury or property damage. Burn Hazard Allow heater t...

SECTION 14: T ROUBLESHOOTING 37 of 51 14.2 Troubleshootin g For Automatic I g nition Burner Systems For yo u r safety and optim u m heater performance, u se only replacement parts sold and s u pplied by Roberts-Gordon LLC. Conduct start-up procedure as shown on Page 27, Section 11 .

UHA S TANDARD U NIT H EATER I NSTALLATION O PERATION AND S ERVICE M ANUAL 38 of 51 14.3 Troubleshootin g for Flame Supervision System NOTE: Minim u m flame probe c u rrent 1 μA DC. Typical flame probe c u rrent 3-5 μA DC. Repair or replace as re q uired. If pro b lems persist, contact Ro b erts-Gord...

SECTION 14: T ROUBLESHOOTING 39 of 51 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-Gordon LLC at www.rg-inc.com V al v e Operating TR...

UHA S TANDARD U NIT H EATER I NSTALLATION O PERATION AND S ERVICE M ANUAL 40 of 51 SECTION 15: REPLACEMENT PARTS See w arnings and important information on Page 32, Section 13 before removing or replacing parts. Burner Components All serviceable b u rner parts are accessed by the door on the side of...

SECTION 15: R EPLACEMENT P ARTS 41 of 51 15.2 Burner Compartment 15.2.1 Burner Injectors Remo v e flexi b le air duct from spigot Remo v e access plate Remo v e screws and pull off b urner compartment co v er V iewing port for flame pro b e V iewing port for ignition electrode Flame Pro b e Burner C...

UHA S TANDARD U NIT H EATER I NSTALLATION O PERATION AND S ERVICE M ANUAL 42 of 51 15.3 I g nition Electrode and Flame Probe Description Part Number Qty. Spark Electrode 90427411 1 A u tomatic Ignition Flame Probe 90439300 1 Transformer 90436900K 1 Ignition Mod u le 90434008 1 Inshot B u rners UHA[X...

SECTION 15: R EPLACEMENT P ARTS 43 of 51 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 stainless steel]. The t u be s u pports are made ...

SECTION 15: R EPLACEMENT P ARTS 45 of 51 15.7 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...

SECTION 16: S PECIFICATIONS 47 of 51 SECTION 16: SPECIFICATIONS 16.1 Dimension Data A B F G H Heater must be supportedat these points from aboveor below. 4 x 3/8" Captive Nuts Provided Electrical Supply Air Intake (UHA[X]S only) Flue C D E Thermostat Connection Gas Supply N M L K J REAR VIEW SID...

UHA S TANDARD U NIT H EATER I NSTALLATION O PERATION AND S ERVICE M ANUAL 48 of 51 16.2 General Technical Data Table *Do not exceed the maxim u m length of fl u e stated or heater may not operate properly. 16.3 Technical Data Table Model UHA[X][S] 150 UHA[X][S] 175 UHA[X][S] 200 UHA[X][S] 225 UHA[X]...

SECTION 17: T HE ROBERTS GORDON ® COMBAT ® UHA-S ERIES W ARRANTY 49 of 51 SECTION 17: THE ROBERTS GORDON ® COMBAT ® UHA-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 date of shipment by Roberts-Gordon LLC ( w hichever comes fir...

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