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Roberts Gorden UHD[X][S][R] 400 - page 1
Installation, Operation & Ser vice Manual Models UHD[X][S ][R] 150, 17 5, 200, 22 5 250, 30 0, 350, 40 0 P/N 1 1 300 1 NA 1 1/08 Or ig. UHD-Series T ubular Duct Furnace (Standard Range) W ARNING Installation must be done b y a contr actor qualif ied in the installation and service of gas-fir ed heating equipment or your gas supplier . Improper ...
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Roberts Gorden UHD[X][S][R] 400 - page 2
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Roberts Gorden UHD[X][S][R] 400 - page 3
© 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 ma y b e repr od u ced or copied in any f orm or b y any means - g raphic, electr onic, or mechanical, incl u ding photocop ying, r ecording , taping or inf or mation storage and r etr ie v al s y st ems - w itho u t the w ritt en pe ...
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Roberts Gorden UHD[X][S][R] 400 - page 4
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Roberts Gorden UHD[X][S][R] 400 - page 5
TABLE OF FIGURES Fi gur e 1: Cl earan ces t o Comb ust ible s .......... ........... ........... ...... 3 Fi gur e 2: A ir Flow Dir ect ion ............... ............ ........... ................. 7 Fi gur e 3: Su spens ion Meth ods ..................... ........... ........... ...... 8 Fi gur e 4: V ent and Roo f Deta il ................ ....... ...
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Roberts Gorden UHD[X][S][R] 400 - page 6
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Roberts Gorden UHD[X][S][R] 400 - page 7
SECTION 1: H EATER S AFETY 1 SECTION 1: HEATER SAFETY Y our Saf ety is Impor tant t o Us! This s ymbol is used thr oughout the manua l t o noti fy y ou of possib le fir e, electrical or b urn hazar ds . Ple ase pa y special at tention when r eading and f oll ow ing the warnings in these sections . Inst allation, ser vice and quar t erly inspecti on ...
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Roberts Gorden UHD[X][S][R] 400 - page 8
UHD S TANDARD D UCT F URNACE I NSTALL ATION O PER ATION AND S ERVICE M ANUAL 2 SECTION 2: INSTALLER R ESPONSIBILITY The inst aller i s r esponsi b le f or the f ollow ing: • T o in stal l the heat er , as wel l as the g as and electrical suppli es, in accor dance w ith appli cab le specif ications and codes . Rober ts-Gor do n recommends the i ns ...
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Roberts Gorden UHD[X][S][R] 400 - page 9
SECTION 3: C RITICAL C ONS IDERATION S 3 SECTION 3: CRITICAL CONSI DERATIONS 3.1 Basic Inf ormation UHD[X][S][ R] heater s ha v e automatic igniti on burner s f or ON/OFF oper ation only . 3.2 Manufact ured Unit s Gas-f ir ed, po wer -v ent ed duc t furnace w ith t ub ular heat e x changer . Units shall ha v e a mini mum of 82% thermal ef f icienc ...
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Roberts Gorden UHD[X][S][R] 400 - page 10
UHD S TANDARD D UCT F URNACE I NSTALL ATION O PER ATION AND S ERVICE M ANUAL 4 3.6 V entilation It is impor t ant to ensur e that there is adequat e air space ar ound t he heat er t o supply air f or comb ustion, v ent ilation and di strib ution in accor dance w it h local and nati onal codes on P age 9, Section 6 . 3.7 Gas Supply It is impor t ant ...
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Roberts Gorden UHD[X][S][R] 400 - page 11
SECTION 4: N ATI ONAL S TANDARDS AND A PPLICABLE C ODES 5 SECTION 4: NATIONAL STANDARDS AND APPLICABLE CODES 4.1 Gas Codes The type of g as appea ring on the name plat e must be the type of gas used. Inst allation mu st comply with nat ional and loc al codes and requi rement s of the l ocal g as compan y . Unit ed Stat es: Ref er to NFP A 54/ANSI Z ...
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Roberts Gorden UHD[X][S][R] 400 - page 12
UHD S TANDARD D UCT F URNACE I NSTALL ATION O PER ATION AND S ERVICE M ANUAL 6 4.6 High Al tit ude These heat er s are CS A -appr ov ed (without modifi cations) f or inst alla tions up t o 2000' (6 1 0 m) in US and Ca nada. CS A appro ved heat er s instal led abo v e 2000' (61 0 m) must be de-r at ed. F or inst allati ons abo v e 2000&apo ...
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Roberts Gorden UHD[X][S][R] 400 - page 13
SECTION 5: D UC T H EAT ER I NSTA LLATIO N 7 SECTION 5: DUCT HEATER INSTALLATION 5.1 Gener al To connect the inlet and outlet ducts to the heater, Duct-Mate or si milar flanges may be slid over the duct connec tor f langes suppl ied on the unit and secured with screws. The connection to th e duct then can be made using the Duct-Mate clip s. The duc ...
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Roberts Gorden UHD[X][S][R] 400 - page 14
UHD S TANDARD D UCT F URNACE I NSTALL ATION O PER ATION AND S ERVICE M ANUAL 8 5.1 .3 A ir Flow And T emperat ure Rise Ranges 5.2 Suspension F our suspension points (3/8 " nuts ) are loc at ed on the t op of the heat er . Dr op rods mus t be 3 /8" diamet er mild st eel. W hen handling or supporting the heat er fr om belo w , ensur e that ...
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Roberts Gorden UHD[X][S][R] 400 - page 15
SECTION 6: V ENTING 9 SECTION 6: V ENTING 6.1 Changing V ent and Air Int ak e Orie ntation The heat er is sold w ith r ear horiz ontal v ent and air inta k e connect ions. (Only separ at ed co mbus tion models ha v e air int ak e connecti on.) 6.2 V enting This heat er must be v ent ed in accor dance with the rules cont ained in this manual and w i ...
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Roberts Gorden UHD[X][S][R] 400 - page 16
UHD S TANDARD D UCT F URNACE I NSTALL ATION O PER ATION AND S ERVICE M ANUAL 10 V ents and air int ak es m ust be adequately suppor t ed so that the heat er does not bear the weight of t he pipes. F or v ent t ermination See P age 1 1, F igure 4 thr ough P age 1 4, F igur e 9 . 6.3.1 Standar d V ented Heat er s (Models UHD[X] [R] 1 50 - 40 0) The v ...
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Roberts Gorden UHD[X][S][R] 400 - page 17
SECTION 6: V ENTING 11 The entir e v ent sh ould be insulat ed with f oil faced fi bergl ass insulat ion (1/2" thic k, 1 -1/2# density minimum). 6.7 .1 Maxim um V ent Lengths 6.8 V ent Mater ial V ent mat erial ma y be single wal l 26 ga. (mi nimum) ga l v aniz ed st eel or equal thi c kness st ain less st eel. Comple t ely seal a ll join ts, ...
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Roberts Gorden UHD[X][S][R] 400 - page 18
UHD S TANDARD D UCT F URNACE I NSTALL ATION O PER ATION AND S ERVICE M ANUAL 12 Fig ur e 5: Standar d V ented Heate r - V er tical and Hor izont al V ent T erminat ion Fig ur e 6: Standar d V ented Heate r - Common V ertical V ent T ermination Model V ent Diameter P art N umber UHD[X][R] 1 50 - 400 4" (1 0 cm) 905021 02 ...
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Roberts Gorden UHD[X][S][R] 400 - page 19
SECTION 6: V ENTING 13 F igur e 7: Separ at ed Comb ustion Heat er - V er tical and Hor izontal V ent T erminati on F igur e 8: Concentr ic V ent Bo x V ent T er mination 1 2" (31 cm) Minim u m fr om air inlet to v ent termination (may b e horizontal or v er tical clearance). Air Int ake T er mination V ent Air Int ake* V er tical Option Horiz ...
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Roberts Gorden UHD[X][S][R] 400 - page 20
UHD S TANDARD D UCT F URNACE I NSTALL ATION O PER ATION AND S ERVICE M ANUAL 14 Fig ur e 9: Concentri c V er tical and Hor iz ontal V ent T erminat ion - Separ ate d Combusti on Heate r Description P art N umber Qty . Concentric V ent Kit (1 50 - 250) UHVK1 Concentric V ent Box T op & Side Assembly 905041 13 1 Concentric V ent Box Bot t om Asse ...
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Roberts Gorden UHD[X][S][R] 400 - page 21
SECTION 7: A IR S UPPLY 15 SECTION 7: AIR SUPPLY 7 .1 Separ ated Comb usti on Installati on W hen instal led as a separat ed comb ustion heat er (UHD[X]S[R]) , t he air f or comb ustion is dr a wn in fr om outsi de th e b uilding . 7 .2 Un vente d Installati on It is impor tant to ensur e that there is adequat e fresh air supp ly at all t imes f or ...
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Roberts Gorden UHD[X][S][R] 400 - page 22
UHD S TANDARD D UCT F URNACE I NSTALL ATION O PER ATION AND S ERVICE M ANUAL 16 SECTION 8: GAS PIPING A gas met er is connect ed to the ser vice pipe b y the gas s upply comp any . An e xisting met er s hould be check ed, pref erab ly b y t he compan y , t o e nsure that the meter is adequat e f or the r at e of g as supply requi red. Instal lation ...
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Roberts Gorden UHD[X][S][R] 400 - page 23
SECTION 9: W IR ING 17 SECTION 9: W IRING All heat er models r equir e const ant 1 20 V/1Ø/60 Hz pow er supply . Check heat er r ating plat e for elec trical rati ng f or pr oper cir cuit sizing . F or servicing , a disconnect s w itch of pr oper elect rical rati ng should be insta lled in the vici nity of the heater . All heat er s ar e equipped ...
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Roberts Gorden UHD[X][S][R] 400 - page 24
UHD S TANDARD D UCT F URNACE I NSTALL ATION O PER ATION AND S ERVICE M ANUAL 18 9.3 Inter nal W ir ing Diagr am IMPORT ANT : F or f ield w iring int o service junction bo x, or if any of th e original w ir e supplied w ith th e heat er must be r ep laced, it must be r eplaced w ith wiring mat erial ha ving a temper atur e ra ting of at least 1 05 ? ...
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Roberts Gorden UHD[X][S][R] 400 - page 25
SECTION 9: W IR ING 19 9.4 Ladder W ir ing Dia gr am IMPORT ANT : F or f ield w iring int o service junction bo x, or if an y of the original w ir e suppli ed with the heat er must be r eplaced, it m ust be repl aced w ith w iring material ha ving a t emper atur e ra ting of at least 1 05 °C (221 °F) and 600 V . F or supply connecti ons, use No . ...
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Roberts Gorden UHD[X][S][R] 400 - page 26
UHD S TANDARD D UCT F URNACE I NSTALL ATION O PER ATION AND S ERVICE M ANUAL 20 9.5 Electr ical Connection to the Heat er IMPORT A NT : Junc tion bo x is not pr o vided w ith heat er . Conduit can al so be at tached direc tly t o heate r wi th w ir e juncti on made wi thin the heat er cabinet. BX Connect or Junction Bo x Flexib le C onduit Burner C ...
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Roberts Gorden UHD[X][S][R] 400 - page 27
SECTION 1 0: O PERATION AND M AINTENANCE 21 SECTION 1 0: OPERATIO N AND MAINTENANCE R ead this manual car efully bef ore inst allat ion, operat ion, or service of this equipment. All components are accessed vi a the door secur ed b y f our sheet metal scr e ws . Opening the door e xposes liv e electrical connections and hot component s. 1 0.1 Pr e- ...
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Roberts Gorden UHD[X][S][R] 400 - page 28
UHD S TANDARD D UCT F URNACE I NSTALL ATION O PER ATION AND S ERVICE M ANUAL 22 Fig ur e 1 1: Aut o matic Burner Contr ol Sequence F igur e 1 2: Gas V alv e B u rner Se qu ence for Ignition Contr ol Flame Signal Start Gas V al v e Ignition Spark Thermostat 24 V SHUT DO WN RU N ST ART ts = 1 0 Seconds Signals O u tp u t By Contr ol Re qu ired Incomi ...
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Roberts Gorden UHD[X][S][R] 400 - page 29
SECTION 1 0: O PERATION AND M AINTENANCE 23 1 0.2.2 Start-Up the Gas V alve (All Gases) 1 0.2.2.1 Chec k Burner Gas Pr essur e 1 . Re mov e the plug i n the out let (b ur ner) pr e ssure test point and co nnect a pr es sure tap and a man omet er . 2. With t he bu r ner f iring , measure the pr essur e on the manomet er . T o adjust the b urner pres ...
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Roberts Gorden UHD[X][S][R] 400 - page 30
UHD S TANDARD D UCT F URNACE I NSTALL ATION O PER ATION AND S ERVICE M ANUAL 24 SECTION 1 1: USER INSTRUCTIONS 1 1 .1 User Instr uctions The UHD[X][S][R] Series heat er s ar e fully aut omatic and operat e fr om the e x t ernal contro ls f it ted on sit e. 1 1 .2 Heat er Oper ation When the heater has been s wit ched on by the thermostat inst alled ...
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Roberts Gorden UHD[X][S][R] 400 - page 31
SECTION 1 2: S ERVICING 25 SECTION 1 2: SERVICING 1 2.1 Ser vici ng Instruct ions Af ter st ar t-up , the heat er w ill r equir e maint enanc e to be carried out annual ly . If the heat er is used in a dir ty or dusty area, mor e frequent maint enance may be req uir ed. IMPORT ANT : Af ter an y m aint enance or repair w ork, al wa ys t est f ir e t ...
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Roberts Gorden UHD[X][S][R] 400 - page 32
UHD S TANDARD D UCT F URNACE I NSTALL ATION O PER ATION AND S ERVICE M ANUAL 26 1 2.7 Mai ntenance Chec klist Install ation Code and Annual Inspecti ons: All inst allations an d service of R OBER TS GORDON ® equipment m ust be perf or med b y a con tract or qualif ie d in the install ation and service equipment sold and suppli ed by R ober ts -Gor ...
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Roberts Gorden UHD[X][S][R] 400 - page 33
SECTION 1 2: S ERVICING 27 Gas Line and Shut -of f Va l v e s Check f or gas leaks . See P age 16, Secti on 8 . Burner Observ ation Windo w Mak e sure it is clean and fr ee of crac ks or holes. Clean and r eplace as r equir ed. Flue Blo wer Scr oll, Wheel and Moto r Compr essed air or a vacuum clea ner ma y be used to cl ean dust and dir t. Inshot ...
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Roberts Gorden UHD[X][S][R] 400 - page 34
UHD S TANDARD D UCT F URNACE I NSTALL ATION O PER ATION AND S ERVICE M ANUAL 28 SECTION 1 3: T ROUBLESHOOTING 1 3.1 Gener al F an and limit s w itch ar e operating normally . Replace t emperat u r e limit s w itch. Ens u re air f lo w thr o u gh heat ex changer is appropriate per the r ating plate . If pro b lems persist, contact Ro b er ts-Gordon ...
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Roberts Gorden UHD[X][S][R] 400 - page 35
SECTION 1 3: T ROUB LESH OOTING 29 1 3.2 T roub leshooting F or A utomatic Igni tion Bur ner S y st ems If pro b lems persist, contact Ro b er ts-Gordon LLC at www .r g-inc.com Heater Operating TROUBLESHOO T ENDS. N o T race fa u lt in s u per v ision sy stem. See Tr o ub leshooting for Flame S u per v ision Sy stem section. Ye s Is ignition contro ...
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Roberts Gorden UHD[X][S][R] 400 - page 36
UHD S TANDARD D UCT F URNACE I NSTALL ATION O PER ATION AND S ERVICE M ANUAL 30 1 3.3 T roub leshooti ng for Fla me Supervision S ys te m NO TE: Minimum f lame pr obe curr ent 1 μ A DC . T ypical flame pr obe curr ent 3- 5 μ A DC. T o m easur e flame curr ent, connect a 0 - 50 μ A DC meter in series w ith the f lame pr obe . If the met er re ads ...
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Roberts Gorden UHD[X][S][R] 400 - page 37
SECTION 1 3: T ROUB LESH OOTING 31 1 3.4 T roub leshootin g fo r Gas V alv es 1 3.5 T roub leshootin g fo r Flue Blo wer 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 r e pro b lem. If pro b lems persist, contact Ro b er ts-Gordon LLC at www .r g-inc.com V al v e Operating TROUBLESHOO T ENDS. N o Ye ...
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Roberts Gorden UHD[X][S][R] 400 - page 38
UHD S TANDARD D UCT F URNACE I NSTALL ATION O PER ATION AND S ERVICE M ANUAL 32 SECTION 1 4: REPLACEMENT P AR TS See w ar nings and important inf or mation on P age 25, Section 1 2 bef ore r emo ving or r eplaci ng par ts. Burner Components All serviceab le b ur ner par ts ar e accessed b y the door on the side of the heat er . Remov e the sheetmet ...
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Roberts Gorden UHD[X][S][R] 400 - page 39
SECTION 1 4: R EPLACEMENT P AR TS 33 1 4.2 Burner Compartment 1 4.2.1 Burner Inject ors MODEL UHD[X][S][R] 15 0 UHD[X][S][R] 175 UHD[X][S][R] 200 UHD[X][S][R] 225 UHD[X][S][R] 250 UHD[X][S][R] 30 0 UHD[X][S][R] 350 UHD[X][S][R] 400 Orifice Quanti ty 7 8 9 10 11 12 14 14 Nat ur al Gas (G 20) Orifice Mar king 43 43 2.25 mm 2.2 5 mm 2. 25 mm 40 40 40 ...
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Roberts Gorden UHD[X][S][R] 400 - page 40
UHD S TANDARD D UCT F URNACE I NSTALL ATION O PER ATION AND S ERVICE M ANUAL 34 1 4.3 I gnition El ectr ode and Fl ame P r obe Description P art Numb er Qty . Spark Elec tr ode 90427 41 1 1 Aut omatic Ignition Flame P robe 90439300 1 T ransformer 90436900K 1 Ignition Module 90434008 1 Inshot Burners UHD[X][S][ R] 1 50 9200000 1 7 Inshot Burners UHD ...
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Roberts Gorden UHD[X][S][R] 400 - page 41
SECTION 1 4: R EPLACEMENT P AR TS 35 1 4.4 Heat Ex changer The heat e x changer consist s of a f our -pass design w ith 1 .75" out er di ameter [409 st ainless st eel] tube . The tube plat es ar e made of [aluminiz ed st eel] [ 409 stainl ess st eel]. The tube suppo r ts ar e made of [g al v annealed st eel] [409 stainl ess st eel]. 1 4.5 Flue ...
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Roberts Gorden UHD[X][S][R] 400 - page 42
UHD S TANDARD D UCT F URNACE I NSTALL ATION O PER ATION AND S ERVICE M ANUAL 36 1 4.6 P ressur e S wi tch P ull of f 3 wa y connect or . Spring open plastic clips of mounting cr adle . Replace w ith corr ect type of press ur e s w itch f or model. The pressu r e sw itches are col or coded f or each p ressu r e set ting. C arr y out a st ar t-up af ...
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Roberts Gorden UHD[X][S][R] 400 - page 43
SECTION 1 5: S PEC IF ICAT IONS 37 SECTION 1 5: SPECIF ICATIONS 1 5.1 Dimension Data 2.4" (6 cm) A B REAR VIEW END VIEW H J T OP VIEW Heater m u st b e s u pp orted at these points from a b o v eo r b elo w . 4 x 3/ 8 " Capti v e Nu ts Pr o v ided Electrical S u ppl y Air Intake (UHD[X][S][R] only) Fl u e 25.5" (65 cm) F 1 9.4" ...
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Roberts Gorden UHD[X][S][R] 400 - page 44
UHD S TANDARD D UCT F URNACE I NSTALL ATION O PER ATION AND S ERVICE M ANUAL 38 1 5.2 Gener a l T echnical Data T able * D o not e x ceed th e maximum l ength of flue stated or heater may not operate properly . 1 5.3 T echnical Data T able Model UHD [X][S][R] 15 0 UHD [X][S][R] 17 5 UHD [X][S][R] 20 0 UHD [X][S][R] 225 UHD [X][S][R] 250 UHD [X][S][ ...
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Roberts Gorden UHD[X][S][R] 400 - page 45
SECTION 1 6: T HE ROBER TS GORDON ® COMB A T ® UHD-S ER IES W A RR ANTY 39 SECTION 1 6: THE ROBER TS GORDON ® COMBA T ® UHD-SERIES W ARR ANTY ROBER TS GORDON ® WILL P A Y FOR: Within 24 mont hs from date of purchase by b uyer or 27 months from date of shi pment by R ober ts-G or don (whichever comes first), replacement p ar ts will be pro vide ...
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Roberts Gorden UHD[X][S][R] 400 - page 46
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Roberts Gorden UHD[X][S][R] 400 - page 47
® O WNER W ARR ANTY REGIS TRA TION C ARD Abou t t he Owner: Name:__________________________________________________________________________________________________ Add r ess:______________________________________City:_________________________ S tate:__________Zip Code:________ Pho n e:_________________________ Fax:_________________________ E-mail: ...
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Roberts Gorden UHD[X][S][R] 400 - page 48
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Roberts Gorden UHD[X][S][R] 400 - page 49
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Roberts Gorden UHD[X][S][R] 400 - page 50
W ARNING © 200 8 Ro b er ts-Gordon LLC www .rg-inc.com Printed in U .S.A. P/ N 91 039 8 31 At tach this inf ormation t o the w all near the ROBER TS GORDON ® heat er Read the Installation, Operation and Service Manual thorou g hly before installation, operation or service . OPERA TING INSTRUCTIONS 1 . S T OP! Read all saf ety instr u ctions on th ...
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