Roberts Gorden CRV-B-8 manuale d’uso

Roberts-Gordon LL C 1250 W illiam S treet P. O . B o x 4 4 Buff alo, New Y ork 14240- 0044 T elep hone : 716. 852. 4400 Fax: 71 6.852. 0854 T oll F ree: 800. 828. 7450 www .rg-inc.com www .radiantheaters.com www .corayvac.com © 2009 Rober ts-Gordon LLC CRV -B-9 CRV -B -10 CRV -B -12 CRV -B-12A P/N 1 27500NA R e v D 05/ 09 CoRayVac ® Design Manual[...]

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© 2009 Ro b er ts-Gordon LLC All rights reser v ed. N o par t of this work co v er ed b y the copyrights herein ma y b e repr oduced or copied in any f orm or b y any means - g raphic, electr onic , or mechanical, including photocop y ing , recor ding , taping or inf ormation storage and r etrie v al s y stems - w ithout the writt en permission of[...]

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TABLE OF FIGURES Fig u re 1: Asse mb ly Ov ervie w (T w o Branch S y st em Sh o w n)..... 3 Fig u re 2: Standa rd Ref le ctor ........ ................. ........... ........... ...... 6 Fig u re 3: One Sid e R eflec to r ................... ........... ........... ............ 6 Fig u re 4 : T w o Side Ref lect or s ........... ............ .......[...]

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SECTION 1: C ONCEPT 1 SECTION 1: CONCEPT The concept of CR V -Series is easy t o u nder stand. Ho w e v er , it means discar ding old ideas beca u se CR V - Series is a dif fer ent kind of heat ing s y st em. CR V -Series is a g as-f ir ed, v ac uu m-operat ed, l o w - int ensity infr ared heat ing s y st em incorporating a pat - ent ed incr ementa[...]

CR V -S ERIES D ESIGN M ANUA L 2 SECTION 2: THE CR V -SERIES S Y ST EM A CR V - Series sy s t em consists of one p u mp , a contr ol sy st em , and a n u mber of b u rners, see P age 3, F igur e 1 . It a ls o in cl u des an e xt ended t u be s u rf ace ( 4" (1 0 cm) steel t u bing) c ov er ed by highly ef fici ent r ef lect or s t o dir ect th[...]

SECTION 2: T HE CRV -S ERIES S YSTEM 3 F IGUR E 1: A ssemb ly O v ervie w (T w o Br anch S yste m Show n) Pump End V ent Combustion Chamber End Burner Radiant T ube Coupling Reflector End Cap Reflector Suppor t Burner T ube & Reflector Hanger Reflector Reflector with Hole End V ent Exhaust to Outside Shared T ailpipe End Burner T ailpipe T ailp[...]

CR V -S ERIES D ESIGN M ANUA L 4 2.3 F uel Savings and Comfort Space heating can be accomplished w it h less inp u t capacity w hen a ra diant heating s y stem i s u tilized, rather than w ith a con v entional con v ective heating s y st em. W h y is t his so? A conv entional, conv ect iv e heating s y stem, s u ch as a u nit heater o r centr al f [...]

SECTION 3: C LEARA NCES TO C OMBUS TIBLES 5 SECTION 3: CLEARANCES TO COMB USTIB LES 3.1 Requir ed Clea rances t o Comb ustib les Clearances ar e the r eq u ir ed distances that c omb u sti- b le objects m u st be a w a y from the heat er to pr e v ent serio u s fir e hazar ds . Comb u s tibles ar e mat erials, w hich ma y catch on f ir e and incl u[...]

CR V -S ERIES D ESIGN M ANUA L 6 NOTE: 1 . All dimen sions are from the s u rf ac es of all t u bes, co u plings, elbo w s, tees and crosses. 2. Clearances B, C and D can be red u ced by 50% aft er 25' (7 .5 m) of t u bi ng do w nstream from w her e the com b u stion cham ber and t he t u be connec t. . F IGUR E 2: STANDAR D R EF LECT OR (inch[...]

SECTION 3: C LEARA NCES TO C OMBUS TIBLES 7 NOTE: 1 . All dimen sions a re fr om the s u rf ac es of all t u bes, co u plings, elbo w s, tees and crosses. 2. Clearances B, C and D can be red u ced by 50% aft er 25' (7 .5 m) of t u bi ng do w nst r eam fr om w her e the com b u stion cham ber and t he t u be connec t. FIGUR E 5: UNI V ERSAL SHI[...]

CR V -S ERIES D ESIGN M ANUA L 8 NOTE: 1 . All dimen sions are from the s u rf ac es of all t u bes, co u plings, elbo w s, tees and crosses. 2. Clearances B, C and D can be red u ced by 50% aft er 25' (7 .5 m) of t u bi ng do w nstream from w her e the com b u stion cham ber and t he t u be connec t. FIGUR E 8: 2-F OO T DECO GR ILLE (inches )[...]

SECTION 4: S IZING AND D ESIGN C ONS IDERATIO NS 9 SECTION 4: SIZING AND DESIGN CONSIDERATIONS The b u ilding heat los s m u st be calc u l at ed in accor- dance to accept ed ener gy load calc u lation methods . ASHRAE (American Societ y of Heating , R efrigeration and Air -C onditioning Engineer s) of f er s in-depth inf o r- mation that is u sef [...]

CR V -S ERIES D ESIGN M ANUA L 10 EXAMPL E 2: Note i n Example 2 , if eq u ipment had been conv ent ion- ally siz ed based on thermal o u tp u t only , a near ly iden- tica l inp u t req u irement w o u ld r es u lt. For mo u nting heights abov e 60' (1 8 m ), no f u r ther corr ection is gen- erally necessary if the floor le v el radiant int [...]

SECTION 4: S IZING AND D ESIGN C ONS IDERATIO NS 11 F IGUR E 1 1: Radiant Distr ib uti on (A ver age Co v er age) F IGUR E 1 2: Radiant Distr ib ution ( Incr eased Co v er age) F IGUR E 1 3: Radiant Distr ib ution ( Heavy Co ver a ge) H 90° 3 H H= mounting height 2 H H 90° H= mounting height H 90° y x=2H-2y x y= height abo ve the floor le vel wh[...]

CR V -S ERIES D ESIGN M ANUA L 12 SECTION 5: FLOW LOADING The patent ed CR V -Series b u rner sy stem allo w s a n u mber of b u rners to be installed in- series, in the same radiant t u be , r es u lti ng in a long , contin u o u s radi- ant emit ting s u r f ace t o gi ve e ven heat dist rib u t ion w ithi n the b u il ding. T o enabl e the b u r[...]

SECTION 5: F LOW L OADING 13 F IGUR E 1 4: Bur ner Flo w Unit s B-10 Burner #1 End Burner End V ent Air + 20 Flow Units Combustion Gas + 10 Flow Units Coupling B-10 Burner #2 Downstream Burner Combustion Gas + 10 Flow Units B-10 Burner #3 Downstream Burner Combustion Gas + 10 Flow Units Burner 1 Burner 2 Burner 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 1 2 3 1[...]

CR V -S ERIES D ESIGN M ANUA L 14 5.2 Pump Capacity The flo w u nit capac ity of the p u mp i s indi cated on P age 1 4, T able 2 , as a f u nction of i nstall ed altit u de . W hen the CR V -Series sy stem is designed in accor - dance w it h this set of instr u ctions and is in pr oper operati ng condition, a v ac uu m f rom 2-3" w .c. w ill [...]

SECTION 6: R AD IA NT T UBE AND T AILPIPE 15 SECTION 6: RADIANT T UBE AND T AILPIPE The main p u r pose of the tailpipe and the radi ant t u be is t o pr o vide s u f ficient t u be s u r f ace t o transf er the heat fr om the f l u e g ases t o the t u be w all w here it radiat es fr om the t u be. Radiant t ube is def i ned as the t u bing bet w [...]

CR V -S ERIES D ESIGN M ANUA L 16 F IGUR E 1 6: T ube Length vs. Ef f icienc y 6.3 Design P a r ameter s W hen designing br anches of 4 B-8 or l arger b u rners in-series , the f oll o w ing limit ation t o the p u mp capacity applies: Pu mp Model Series Maximum Loa ding EP -1 00:Not Allo w ed EP -200:1 Branch of 4 b u rners EP -300:2 Branches of 4[...]

SECTION 6: R AD IA NT T UBE AND T AILPIPE 17 4. Select p u mp model series f or tot al sy st em f lo w u nits : EP -1 00: u p t o 66 f lo w u nits EP -200: u p t o 1 1 0 fl o w u nits EP -300: u p t o 224 f lo w u nit s 5. See P age 1 4, T able 2 f or a ltit u des great er than 2000'. 6. Fo r each branc h, add the length of r adiant t u be af [...]

CR V -S ERIES D ESIGN M ANUA L 18 EX AMPLE 3: B-1 0 Radiant T ube vs. T ailpipe Len gth T able 5: Operating Char act eris tics; Condensing or Non-Condensing N/A=Not Allo wed NC=Non Condensing C=Condensing 6.5 T ailpipe Design Me thod Giv en the o v er all length of t ailpipe f or the sy stem, the f ollo w ing section pr ovides the method f or ens u[...]

SECTION 6: R AD IA NT T UBE AND T AILPIPE 19 T able 5 for the b u rner model t o ens u r e that the r es u lt- ing t ailpipe lengths maint ain i ntended operat ing char- act eristic. 6.5.5 Damper Couplings D amper co u plings ar e needed: • In any t ailpipe br anch that carries less flo w u nits than other t ailpipe bra nches connect ed t o the s[...]

CR V -S ERIES D ESIGN M ANUA L 20 F IGUR E 1 7: P ossible Damper Coupling Locations Damper Coupling Damper NOTE: Damper setting will vary Zone 1 Zone 2 Zone 3 Zone 1 End V ent Zone 3 End V ent Zone 2 End V ent Zone 1 Damper Coupling Zone 2 Damper Coupling Zone 3 Damper Coupling Pump Damper[...]

SECTION 7: E XAM PLE CR V -S ERIES S YS TEM L AYOUT S 21 SECTION 7: EXAMPLE CR V - SERIES S Y STEM LAY OUTS S ys t ems that are s ymmetrical ar e pr ef erred beca u se the v ac uu m a v ailab l e in the s y st em branches ar e bal- anced as a f u nction of design (damper c o u pli ngs ar e not needed). W here r adiant t u be lengths are v ariab le [...]

CR V -S ERIES D ESIGN M ANUA L 22 F IGUR E 1 9: Ex ample Sy st em Lay out ( Option 2) 7 .2 Example S y st em Lay out (Option 2) Six B1 0 b u rners at r ecommended radiant t u be length and 1 .2'/flo w u nit t ailpipe , the recommended p u mp f or this s y stem is an EP -200 Series p u mp . La y o u t w ill m inimi z e u p fr ont eq u ipment co[...]

SECTION 7: E XAM PLE CR V -S ERIES S YS TEM L AYOUT S 23 F IGUR E 21: Ex ample S y stem La y out (Opti on 4) 7 .4 Example S y st em Lay out (Option 4) Nine B1 0 b u r ner s at r ec ommended radiant t u be length and 1 .58'/flo w u ni t ta ilpipe , the p u mp for this syst em is an EP -300 Series P u mp . All shar ed tailpipe i s 6" diamet[...]

CR V -S ERIES D ESIGN M ANUA L 24 La y o u t t o pr ovi de minim u m s yst em ef ficiency . Adj u st the lengths as necessary fo r dif fer ent inp u t sys tem s and t o incr ease the ef f icienc y le vels . This s y st em is gener ally ac companied b y an addi- tional s y st em, as sho w n, so that the r adiant o u tp u t of the additional s y st e[...]

SECTION 7: E XAM PLE CR V -S ERIES S YS TEM L AYOUT S 25 F IGUR E 26: Ex ample S y stem La y out (Opti on 9) 7 .7 Example S y st em Lay out (Option 7 , 8 and 9) These s y st ems ar e f or B9 b u rners only , this b u r ner is specially rat ed for 2 b u rners in-series applicat ions in the s y st ems sho w n. Option 7 is a 1 80' (55 m) str aigh[...]

CR V -S ERIES D ESIGN M ANUA L 26 SECTION 8: CONTROL METHODS There ar e se veral met hods of contr olli ng CR V -Series sy stems . The options are as f oll o w s: 8.1 ROBER TS GORD ON ® S y stem Contr o l (P/N 02770 0 02) The RO BER TS GORDON ® Sy st em Con tr ol is an electr onic cont ro ller designed f or the control of CORA YV AC ® and V ANT [...]

SECTION 8: C ONTROL M ETHO DS 27 B u ilding s toda y demand all sor ts of control options based on t he u ser’ s pref er ence. UL TRA V A C™ contr ols of f er a host of comm u nication opt ions f or int egr ation w ith contr ols ’ net w orks to best serve individ u al needs: BAC n e t ® : Interf ace UL TRA V A C™ w i th other b u ildin g m[...]

CR V -S ERIES D ESIGN M ANUA L 28 SECTION 9: AIR SUPPLY SY ST EM An ai r s u pply fr ee of d u st and corr osiv e contamin ants is essenti al f or proper oper ati on and best li f e e xpect- ancy w ith an y heat ing s ys t em. Wi th CR V -Ser ies, ther e ar e t w o al ternativ es a v ail abl e t o the desi gner f or pro- viding t he air s u pply . [...]

SECTION 9: A IR S U PPLY S YSTEM 29 9.3.3 Pi pe sizing T o size each section of pipe proceed as f ollo w s: • Calc u la te t h e re q u ired f l o w u nits at each o u tlet of the s u pply s y stem. • Meas u re t he longest r u n of pip e fr om the b lo w er to t he m o st rem o te o u tlet. Use only this dist ance in F igur e 27 (or the ne xt [...]

CR V -S ERIES D ESIGN M ANUA L 30 F IGUR E 29: Sample Lay out fo r P r essur ized Outsi de A ir S y stems *NOTE: up to 10' (3 m) max. from blower inlet can be neglected for pressure drop calculations. 4 4 4 10 20 8 8 8 110' (33 m) (44) 15 6 66 (22) (33) P 100' (30 m) 15' (4.5 m) B 50' (15 m) 10' (3 m) max.* 4" duc[...]

SECTION 1 0: ROBERTS GORDON ® UL TRA V AC ™ D ESIGN R EQ UIREM ENTS 31 SECTION 1 0: ROBERTS GORDON ® UL TRA V A C ™ DESIGN R EQUIR EMENTS CR V -B-2 and CR V - B-4 are not a v ail ab le f or u se w ith ROBER TS GORDON ® U L T R AVA C ™ contr ols. CR V -Series sy st ems desi gned w ith minim um radiant t u be l engthshall ha ve 1 .5' - [...]

CR V -S ERIES D ESIGN M ANUA L 32 SECTION 1 1: CR V -SERIES EQUIPMENT SPECIF ICATIONS The t otal heat ing s y stem s u pplied sha ll be design cer- tif ied by the CS A Int ernational per Amer ican National Standar d ANSI Z83.20/CS A 2.34 (lat est edition). 1 1 .1 Bur ner and Burner Contr ols 1 1 .1 .1 B u rners s hall be designed t o operat e sim u[...]

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Infrar ed Heating Maintain c lear ance t o the side and c lear ance below the heat er fr om v ehic les and comb ustible mat erials. www .rg-inc.com Printed in U .S.A. P/ N 9103791 2 R e v . H At tach this inf ormation t o a w all near the ROBER TS GORDON ® heat er . Read the Installation, Oper ation, and Service Manual thorou g hly bef ore install[...]