Instruction/ maintenance manual of the product UHA[X][S] 100 Roberts Gorden
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Installation, Operation & Ser vice Manual Models UHA[X][S] 30, 45, 60 , 75, 100, 125 P / N 1111 0 0 N A 11 / 0 8 R e v D UHA-Series T ubular Unit Heaters (Low Profile Range) W ARNING Installation must be done b y a contract or qualified in the installation and service of gas-fir ed heating equipment or your gas supplier .
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© 200 8 Ro b er ts-Gor don LLC All rights r eser v ed. N o par t of this w ork co v er ed b y the copyrights herein may b e r eprod u ced or copied in any f orm or b y any means - graphic , electroni.
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TABLE OF FIGURES Fi gure 1: UHA 30 - 45 L abel Placem ent .................. ........... ...... 2 Fi gure 2: UHA 60 - 75 L abel Placem ent .................. ........... ...... 3 Fi gure 3: UHA 1 00 - 1 25 Labe l Placement............... .............
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SECTION 1: H EATER S AFETY 1 SECTION 1: HEATER SAFETY Y our S af ety is Impor tant t o Us! This s ymbol is used thr oughout the manua l t o notify y ou of possib le f ir e, el ectrical or b urn hazar ds. Please p ay special at tention when r eading and f ollo w ing the warnings in these sections .
UHA L OW P ROF IL E U NI T H EAT ER I NSTALL ATION O PERATION AND S ERVICE M AN UAL 2 Fig ure 1: UHA 30 - 45 Label Placement Description Part Number Logo Label 91 040030 Cut Hazard Label 91 0 1 0430 V.
SECTION 1: H EATER S AFETY 3 F igure 2: UHA 60 - 75 Label Placement Description Part Number Logo Label 91 040030 Cut Hazard Label 91 0 1 0430 V ent Length Label 91 039505 V ent to Outdoors Label 91 0 .
UHA L OW P ROF IL E U NI T H EAT ER I NSTALL ATION O PERATION AND S ERVICE M AN UAL 4 Fig ure 3 : UHA 1 0 0 - 1 25 L abel Placement VENT TO OUTDOORS DONNER VENT A DEHORS © 2006 Roberts-Gordon, LLC P/N 91010427 Printed in U.
SECTION 1: H EATER S AFETY 5 SECTION 2: INSTALLER RESPONSIBILITY The insta ller is r esponsib le f or the f ollo w ing: • T o install th e heater , as well as the g as and electrical supplies , in accor dance with applicab le specif ications and codes .
UHA L OW P ROF IL E U NI T H EAT ER I NSTALL ATION O PERATION AND S ERVICE M AN UAL 6 SECTION 3: CRI TICAL CONSIDER ATIONS 3.1 Basic Infor mation UHA[X][S] heat er s hav e aut omatic ignition b urners f or ON/OFF operation o nl y . 3.2 Manufact ur ed Units Gas-fi red, po wer -v ented uni t heater with tub ular heat ex changer .
SECTION 3: C RITICAL C ONS IDERATION S 7 3.7 Gas Supply It i s impor tant that the gas s upply pipe i s sized corr ectly t o pr o vide the inlet pr essur e as st at ed on the heat er da ta plat e. The g as supply pi pe and electrical co nnections m ust not support any o f the heater' s wei ght.
UHA L OW P ROF IL E U NI T H EAT ER I NSTALL ATION O PERATION AND S ERVICE M AN UAL 8 SECTION 4: NATIONAL STANDA R DS AND APPLICABLE CODES 4.1 Gas Codes The t ype of g as appearing on the name plat e must be t he type of ga s used. Install ation must comply with nat ional and local codes and requi rements of the l ocal gas company .
SECTION 4: N ATI ONAL S TANDARDS AND A PPLICABLE C ODES 9 4.6 High Alt itude These heat er s ar e CS A -appr o ved (wi thout modif ications) f or install ations up t o 2000' (6 1 0 m) in US and C anada. CS A appr ov ed heater s inst alled abo v e 2000' ( 61 0 m) must b e de- rat ed.
UHA L OW P ROF IL E U NI T H EAT ER I NSTALL ATION O PERATION AND S ERVICE M AN UAL 10 SECTION 5: MAJOR COMPONENTS 5.1 General Heater s ar e designed f or instal lation abo v e 6' (1 .8 m). These heater s must be i nstall ed w ithin the heated spac e.
SECTION 5: M AJOR C OMPONENTS 11 F igure 5: Suspension Methods F igure 6: Shelf-Mounti ng Methods Cone P oint Set Pin W indo w Clamp Unistr u t 3/ 8 " Threaded Rod Nu t W asher Ri v Nu t S u ppor t P oints Ens u re all s u spension hard w are is t or qu ed t o a minim u m of 20 f t l b s.
UHA L OW P ROF IL E U NI T H EAT ER I NSTALL ATION O PERATION AND S ERVICE M AN UAL 12 Fig ure 7: W all Shelf Mounting and Hanging Suspension Description Part Number Qty . Wall Shelf Mountin g Br ack et Kit 120 1 1 0 02K Wall Suspension Mounting Bracket Kit 120 1 1 00 1K 1 Shelf Mount ing Brac ket Kit 1 20 1 1 000K 1 Description P art Number Qty .
SECTION 5: M AJOR C OMPONENTS 13 F igure 8: V ertical Lou v ers ( Optional) Push in louver and compress spring to remove (opposite end first) Install vertical louvers brackets (top and bottom) with supplied screws. Install vertical louvers and springs into brackets with springs at top.
UHA L OW P ROF IL E U NI T H EAT ER I NSTALL ATION O PERATION AND S ERVICE M AN UAL 14 SECTION 6: V ENTING 6.1 Changing V ent and Air In tak e Orienta tion The heater is sold with r ear horiz ontal v ent and air intak e connecti ons as standar d (only separat ed combusti on models ha v e air intak e connect ion).
SECTION 6: V ENTING 15 V ents and air i ntak es m ust be adequat ely supported so t hat the heat er does not bear the w eight of the pipes. F or v ent t ermination See P age 1 7 , F igur e 9 through P age 20, F igur e 1 4 .
UHA L OW P ROF IL E U NI T H EAT ER I NSTALL ATION O PERATION AND S ERVICE M AN UAL 16 • In the e v ent that the r equir ements of this subdivision c an not be met at the ti me of completion of i ns.
SECTION 6: V ENTING 17 are loc ated and othe r spaces of the bu ilding . T ur n on clothes dryer s and any e xhaust f ans, such as range hoods and bathr oom e xhausts so that the y shall operat e at maximum speed. Do not oper at e a summer e xhaust f an.
UHA L OW P ROF IL E U NI T H EAT ER I NSTALL ATION O PERATION AND S ERVICE M AN UAL 18 Fig ure 1 1: Standar d V ented Heat er - Common V ert i cal V ent T ermin ation.
SECTION 6: V ENTING 19 F igure 12: Separat ed Combust ion Heater - V er tical and Hori zontal V ent T erminati on F igure 1 3: Concentr ic V ent Box V ent T ermination Listed Thim b le thro u gh Com bu sti b le W all 4" (1 0 cm) Diameter V ent 1 2" (31 cm) Minim u m fr om w all to v ent termination.
UHA L OW P ROF IL E U NI T H EAT ER I NSTALL ATION O PERATION AND S ERVICE M AN UAL 20 Fig ure 1 4: Concentric V ertical and Horizontal V ent T erm ination - Separ ated Comb ustion Heater 6" (1 6.
SECTION 7: A IR S UPPLY 21 SECTION 7: AIR SUPPLY 7 .1 Separat ed Combus tion Installati on W hen installed as a separated comb ustion heater (UHA[X]S), the air f or comb ustion is dr a wn in fr om outside the b uilding .
UHA L OW P ROF IL E U NI T H EAT ER I NSTALL ATION O PERATION AND S ERVICE M AN UAL 22 SECTION 8: GAS PIPING A ga s meter is connect ed t o the service pipe by the ga s supply company . An e xisting meter should be chec ked, pr ef erably b y the compan y , to ensure that the met er i s adequat e f or the rat e of g as sup ply r equired.
SECTION 9: W IRIN G 23 SECTION 9: W IRING All heat er models r equire consta nt 1 20 V/1Ø/ 60 Hz pow er supply . Check heat er rati ng plat e fo r electrical rati ng f or pr oper circui t sizing . F or ser vicing , a disconnect sw itch of pr oper elect rical rating should be insta lled in the vicinity of the heater .
UHA L OW P ROF IL E U NI T H EAT ER I NSTALL ATION O PERATION AND S ERVICE M AN UAL 24 9.3 Lo w V olta ge Thermostat wit h Multiple Heat er s 30 - 45 Model Rela y T ype Rela y Part Number Max.
SECTION 9: W IRIN G 25 9.4 Low V oltage Thermost at w ith Multip le Heat ers 60 - 1 25 Model Rela y T ype Relay P art Number Max. Number of Heaters UHA[X][S] 60 - 1 25 DP S T 90436300 4.
UHA L OW P ROF IL E U NI T H EAT ER I NSTALL ATION O PERATION AND S ERVICE M AN UAL 26 9.5 Inter nal Wi ring Diagr am Bl u e Black Black O r a n ge Y ellow B r ow n Black White White L2 L1 Black Black.
SECTION 9: W IRIN G 27 9.6 Ladder W iri ng Diagr am FLAME SENSOR PRESSURE SWITCH THERMOST A T CONNECTION 6 3 4 5 2 1 1 20 V AC TRANSFORMER FLUE BL O WER AXIAL F AN AXIAL F AN UHA (300, 350, 400 O n ly.
UHA L OW P ROF IL E U NI T H EAT ER I NSTALL ATION O PERATION AND S ERVICE M AN UAL 28 9.7 Electr ical Connecti on to the Heat er IMPORT ANT : Junc tion bo x is not pro vided w ith heat er . Conduit can al so be at tach ed directly t o heat er wit h wir e juncti on made withi n the heate r cabinet.
SECTION 1 0: O PERATION AND M AINTENANCE 29 SECTION 1 0: OPERATION AND MAI NTENANCE R ead this man ual car efully bef ore i nstallati on, operat ion, or ser vice of thi s equipment. All components are accessed via the door secured b y f our sheet metal scr ews .
UHA L OW P ROF IL E U NI T H EAT ER I NSTALL ATION O PERATION AND S ERVICE M AN UAL 30 Fig ure 1 6: A utomatic Bur ner Contr ol Sequence Fig ure 1 7: Gas V alve f or Model s UHA[X][S] 30 - 45 B u rner.
SECTION 1 0: O PERATION AND M AINTENANCE 31 F igure 1 8: Gas V alve for Models UHA[X][S] 60 - 1 25 1 0.2.2 Start-Up the Gas V alve ( All Gases) 1 0.2.2.1 Chec k Burner Gas P ressur e 1 . Re mov e the pl ug in the outl et (b ur n er) pr essure test point a nd connect a pressur e t ap and a man omet er .
UHA L OW P ROF IL E U NI T H EAT ER I NSTALL ATION O PERATION AND S ERVICE M AN UAL 32 Heat e x changer could be dama ged. W arr anty w ill not co v er damage t o the he at ex changer if operat ed impr operly . Only use the disconnect sw itc h for t urning of f heater f or service or during of f-season.
SECTION 1 1: U SER I NSTRUCTIONS 33 SECTION 1 1: USER INSTRUCTIONS 1 1 .1 User Instr uctions The UHA[X][S] Series heat ers ar e fully aut omati c and oper ate fr om the e xt ernal contr ols fi t t ed on sit e . The only user contr ol at the heat er is the Manual R eset Limit S w itch - See P age 33, Section 1 1 .
UHA L OW P ROF IL E U NI T H EAT ER I NSTALL ATION O PERATION AND S ERVICE M AN UAL 34 2. The aut omatic f iring sequence w ill be gin as described on P age 30, F igure 16 . The heat er w ill no w operat e aut omatically under the contr ol of the o n sit e contr ols .
SECTION 1 2: S ERVICING 35 SECTION 1 2: SERVIC ING 1 2.1 Ser vici ng Instructio ns Af t er st ar t-up , the heat er will r equir e maintenanc e to be carried out annual ly . If the heat er is used in a dir ty or dusty area, mor e fr equent maint enance may be req uir ed.
UHA L OW P ROF IL E U NI T H EAT ER I NSTALL ATION O PERATION AND S ERVICE M AN UAL 36 1 2.7 V enting and Ai r Intak e Pipe Inspect all v enti ng and air intak e pipe . Ensur e that all seams ar e sealed and suspension point s secur e. Rep air suspension points i f any part of the v enting or combust ion air pipe is sagging .
SECTION 1 2: S ERVICING 37 Combust ion Air Intake Pip e Intak e pipe and inlet must be i ntact. Look f or obstructions , cra cks on the pi pe, gaps in the se aled ar eas o r corr osion. The area mus t be fre e of dir t and dust. Clean and rei nstal l as requir ed.
UHA L OW P ROF IL E U NI T H EAT ER I NSTALL ATION O PERATION AND S ERVICE M AN UAL 38 SECTION 1 3: T R OUBLESHOOTING 1 3.1 Gener al Ens u re pr oper air flo w clearance f or axial fan. Open lo uv er s slightly . Replace axial f an if it does not operate .
SECTION 1 3: T ROUBLE SHOOTING 39 1 3.2 T rou bleshootin g F or A utomatic Igni tion Burner Sy stems F or optimu m heater perf or mance , use only repl acement par ts sold and supplied b y Roberts-Gord on. Conduct start-up pr ocedur e as shown on Pag e 29, Section 1 0 .
UHA L OW P ROF IL E U NI T H EAT ER I NSTALL ATION O PERATION AND S ERVICE M AN UAL 40 1 3.3 T r oubleshooti ng for Fla me Super visi on Sy ste m NO TE: Minimum fl ame probe curr ent 1 μA DC . T ypical f lame pr obe current 3- 5 μA DC. Repair or r eplace as re qu ired.
SECTION 1 3: T ROUBLE SHOOTING 41 1 3.4 T r oubleshootin g fo r Gas V alv es 1 3.5 T r oubleshootin g fo r Flue Blo w er V al v e f a u lty . Replace w ith one of correct type. Fa u lt else w her e. Corr ect press u re pr o b lem. If pro b lems persist, cont act Ro b er ts-Gordon LLC at www .
UHA L OW P ROF IL E U NI T H EAT ER I NSTALL ATION O PERATION AND S ERVICE M AN UAL 42 SECTION 1 4: R EPLACEMENT P ARTS See w ar nings and no tes on P age 35, Section 1 2 bef or e re moving o r repl acing parts. Burner Component s All serviceable burner par ts are acc essed b y the door on the side of the heat er .
SECTION 1 4: R EPLACEMENT P AR TS 43 1 4.2 Burner Compartment 14 . 2 . 1 Burner Inject ors Remo v e f lexi b le air d u ct from spigot V ie w ing por t f or flame pr o b e Flame P r o b e B u rner Compartment Co v er Ignition Electrode Rem o v e scr e w s and p u ll of f bu r ner co v er NO TE: Separat ed com bu stion model sho w n.
UHA L OW P ROF IL E U NI T H EAT ER I NSTALL ATION O PERATION AND S ERVICE M AN UAL 44 1 4.3 Ignit ion Electr ode and Flame Pr obe Inshot B u rners .1 20 (3 mm) spark gap Ignition Electrode Burner Compartment Front Views Man u al R eset Limit S w itch (P osition ma y v ary .
SECTION 1 4: R EPLACEMENT P AR TS 45 1 4.4 Heat Exc hanger The heat e x changer consists of a f our -pass design w ith 1 .5" oute r diameter [aluminize d steel ][409 stainl ess st eel] tube . The tube plat es are made of [al uminized st eel][ 409 stainless st eel] .
UHA L OW P ROF IL E U NI T H EAT ER I NSTALL ATION O PERATION AND S ERVICE M AN UAL 46 1 4.6 Flue Blo wer V ertical Installati on IT IS IMPORT A NT THA T ONL Y TH E CORRECT FLUE BL OWER SPECIFIED FOR EA CH MODEL TYPE IS USED WHEN RE PLA CING THESE ITEMS.
SECTION 1 4: R EPLACEMENT P AR TS 47 1 4.7 Pr essure S w itch P ull of f 3 w a y connect or . Spring open plastic c lips of mounting cradle . R eplace w ith corr ect t ype of pr essur e s w itch f or model. The pr essur e s w itches ar e color coded fo r each pr essure set ting .
UHA L OW P ROF IL E U NI T H EAT ER I NSTALL ATION O PERATION AND S ERVICE M AN UAL 48 1 4.9.1 F an R emo val and Repl acement 1 4.9.2 T o Replace the F an A ssembly T o repla ce the f an assembly , re ver se the proced ure shown abo v e. • Chec k that the f an b lades ar e fr ee t o rot at e bef or e turning on the po wer t o the f an.
SECTION 1 5: S PECIF ICATIONS 49 SECTION 1 5: SPECIFICATIO NS 1 5.1 Dimension Data MODEL UHA[X][S] 30 UHA[X][S] 45 UHA[X][S] 60 UHA[X][S] 75 UHA[X][S] 10 0 UHA[X][S] 12 5 'A' Height in (cm) 12 (30.48) 12 (30.48) 17 . 75 (45.09) 17 . 7 5 (45.
UHA L OW P ROF IL E U NI T H EAT ER I NSTALL ATION O PERATION AND S ERVICE M AN UAL 50 1 5.2 Gener al T echnical Data T able (All Models) *Do not e x ceed the maxim um length of f lue st ated o r heate r may not oper ate pr operly .
SECTION 1 6: ROBER TS GORDON ® COMBA T ® UHA-S ERIES W ARRANTY 51 SECTION 1 6: ROBER TS GORDON ® CO MB A T ® UHA -SERIES W ARRANTY ROBER TS GORDON ® WILL P A Y FOR: Within 24 mont hs from date of.
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® O WNER W ARRANTY RE GISTR A TION C ARD Abou t t he Owner: Name:__________________________________________________________________________________________________ Add r ess:_________________________.
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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 R ev B At tach this infor mation to the w all near the ROBER TS GORDON ® heater Read the Installation, Operation and Service Manual thoroughly before installation, operation or service .
An important point after buying a device Roberts Gorden UHA[X][S] 100 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Roberts Gorden UHA[X][S] 100 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Roberts Gorden UHA[X][S] 100 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Roberts Gorden UHA[X][S] 100 you will learn all the available features of the product, as well as information on its operation. The information that you get Roberts Gorden UHA[X][S] 100 will certainly help you make a decision on the purchase.
If you already are a holder of Roberts Gorden UHA[X][S] 100, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Roberts Gorden UHA[X][S] 100.
However, one of the most important roles played by the user manual is to help in solving problems with Roberts Gorden UHA[X][S] 100. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Roberts Gorden UHA[X][S] 100 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
