Desa CBT20NT manual

Sav e this manual for future reference. For more information, visit www .desatech.com W ARNING: If the information in this manual is not fol- lowed exactly , a fire or explosion may result causing property damage, personal injury , or loss of life. — D o n o t st o r e o r u s e g a s o l i n e o r o t h e r fl a m m a b l e v a p or s a n d l [...]

www .desatech.com 107882-01K 2 W ARNING: Improper installation, adjustment, altera- tion, service, or maintenance can cause injury or prop- erty damage. Refer to this manual for correct installation and operational procedures. For assistance or addi- tional information consult a qualified installer , service agency , or the gas supplier . W ARNING[...]

www .desatech.com 107882-01K 3 SAFETY INFORMA TION IMPORT ANT : Read this owner ’ s man ual caref ully and co mple tel y before trying to assemble, op- erate, or service this heater . Improper use of this heater can cause serious injury or death from burns, fire, explosion, electrical shock, and carbon monoxide poisoning. DANGER: Carbon monoxide [...]

www .desatech.com 107882-01K 4 4. This heater shall not be installed in a bedroom or bathroom. 5. This heater needs fresh, outside air ventilation to run properly . This heater has an Oxygen Depletion Sensing (ODS) safety shutoff system. The ODS shuts down the heater if not enough fresh air is available. See Air for Combustion and V entilation, pag[...]

www .desatech.com 107882-01K 5 AIR FOR COMB USTION AND VENTILA TION W ARNING: This heater shall not be installed in a confined space or unusually tight con - struction unless provisions are provided for adequate combus- tion and ventilation air . Read the following instructions to insure pro per fr esh ai r fo r t his an d other fuel-b urning app [...]

www .desatech.com 107882-01K 6 4. Compare the maximum Btu/Hr the space can support with the actual amount of Btu/Hr used. _______________ Btu/ Hr ( maxi mum the spac e can support) _______________ Btu/Hr (actual amount of Btu/Hr used) Example: 51 ,2 00 B tu /H r (m ax im um t he s pa ce c an s up po rt ) 60,000 Btu/Hr (actual amount of Btu/Hr used)[...]

www .desatech.com 107882-01K 7 VENTILA TION AIR V entilation Air From Inside Building This fresh air would come from an adjoining un- confined space. When ventilating to an adjoining unconfined space, you must provide two perma- nent openings: one within 12” of the ceiling and one within 12” of the floor on the wall connecting the two spaces[...]

www .desatech.com 107882-01K 8 INST ALLA TION ITEMS Before installing heater , make sure you have the items listed below . • for propan e/LP gas, exter nal regula tor (suppl ied by installer) • piping (check local codes) • sealant (resistant to propane/LP gas) • equipment shutoff valve * • ground joint union • sediment trap • tee join[...]

www .desatech.com 107882-01K 9 INST ALLA TION Continued THERMOST A T SENSING BULB The thermostat sensing bulb is below the heater . 1. Place clamp on thermostat sensing bulb as shown in Figure 5. Clamp is provided in hardware package. 2. Sn ap cla mp into up per moun ti ng hol e as sho wn in Figu re 5. Mounti ng hole is loca ted on lower left edge [...]

www .desatech.com 107882-01K 10 2. Mark screw locations on wall (see Figure 8). Note: Only mark last hole on each end of mou nti ng br acke t. In ser t m ount ing sc rew s through these holes only . 3. Re mo ve ta pe an d m ou nt in g b ra ck et fr om INST ALLA TION Continued Figure 8 - Mounting Bracket Clearances 18 3 / 4 " Min. 12" Min.[...]

www .desatech.com 107882-01K 1 1 Installing Bottom Mounting Screws 1. Locate two bottom mounting holes. These holes are near bottom on back panel of heater (see Figure 12). 2. Mark screw locations on wall. 3. Remove heater from mounting bracket. 4. If installing bottom mounting screws into hollow or solid wall, install wall anchors. Follow steps 1 [...]

www .desatech.com 107882-01K 12 INST ALLA TION Continued Figure 14 - External Regulator With V ent Pointing Down External Regulator Propane/LP Supply T ank V ent Pointing Down T ypical Inlet Pipe Diameters 20,000 Btu/Hr Models - 3/8" or greater 30,000 Btu/Hr Models - 1/2" or greater Installa tion must include equipment shutoff valve, unio[...]

www .desatech.com 107882-01K 13 INST ALLA TION Continued * A CSA design-c ertified equipment shutof f valve with 1/8" NPT tap is an acceptable alternative to test gauge connection. Purchase the optional CSA des ign -ce rtifi ed equi pme nt shut of f valve fro m your dealer . See Accessories , page 23. Figure 15 - Gas Connection Pressure Regu[...]

www .desatech.com 107882-01K 14 PRESSURE TESTING HEA TER GAS CONNECTIONS 1. Open equipment shutof f valve (see Figure 16, page 13). 2. For natural gas open main gas valve located on or near gas meter . For propane /LP gas open propane/LP supply tank valve. 3. Make sure control knob of heate r is in the OFF position. 4. Check all joints from equipme[...]

www .desatech.com 107882-01K 15 O F F P I L O T 5. Turn cont rol knob counte rclo ckwi se to the PILOT position. Press in control knob for five (5) seconds (see Figur e 19). Note: Y ou may be running this heater for the first time after hooking up to gas sup - ply . If so, the control knob may need to be pressed in for 30 seconds or more. This wi[...]

www .desatech.com 107882-01K 16 MANUAL LIGHTING PROCEDURE 1. Remo ve fr ont pane l (s ee Figu re 7, page 9) . 2. Follow steps 1 through 5 under Lighting Instructions , page 14. 3. Wit h contr ol knob pres sed in, strike match. Hold match to pilot until pilot lights. 4. Keep cont ro l knob pres sed in for 30 seco nds afte r lighti ng pilot. After 30[...]

www .desatech.com 107882-01K 17 CLEANING AND MAINTENANCE W ARNING: T urn off heater and let cool before cleaning. CAUTION: Y ou must keep control areas, burner , and circu- lating air passage ways of heater clean. Inspect the se areas of heater before each use. Have heater inspected yearly by a qualified service person. Heater may need more freque[...]

www .desatech.com 107882-01K 18 SPECIFICA TIONS CB N2 0/ CBN2 0T CBN30T CBT20NT CBT30NT SBN20 Btu (V ariable) 10,000/20,000 15,000/30,000 10,000/20,000 15,000/30,000 T ype Gas --------------------------------Natural Only--------------------------------- Ignition Piezo Piezo Electronic Electronic Pressure Regulator Setting 3" W .C. 3" W .C[...]

www .desatech.com 107882-01K 19 TROUBLESHOO TING W ARN IN G: T urn off an d unpl ug h eat er a nd le t cool bef ore ser vi ci ng. Only a qualified service person should service and repair heater . CAUTION: Never use a wire, needle, or similar object to clean ODS/pilot. This can damage ODS/pilot unit. Note: All troubleshooting items are listed in o[...]

www .desatech.com 107882-01K 20 POSSIBLE CAUSE 1. C o n tr ol k no b n o t f u ll y pr es se d i n 2. Control knob not pressed in long enough 3. Safety interlock system has been triggered 4. Equipment shutoff valve not fully open 5 . Thermocouple connection loose at control valve 6. P i l o t f l a m e n o t t o u c h i n g thermocouple, which allo[...]

www .desatech.com 107882-01K 21 TROUBLESHOO TING Continued POSSIBLE CAUSE 1. Turning control knob to posi- tion 5 when burner is cold 2. Air in gas line 3. A ir p as s ag e wa y s o n h e at e r blocked 4 . Dirty or partially clogged burner orifice 1 . When heated, vapors from furniture polish, wax, carpet cleaner , etc., may turn into white powde[...]

www .desatech.com 107882-01K 22 TROUBLESHOO TING Continued POSSIBLE CAUSE 1. G a s l e a k . See Warning statement on page 21 2. Control valve defective 1. Foreign matter between con - trol valve and burner 2. G a s l e a k . See Warning statement on page 21 1. Not enough combus tion/v en - tilation air OBSERVED PROBLEM Gas odor even when control k[...]

www .desatech.com 107882-01K 23 F AN KITS - GA3250T For all models. Provides better heat distribution. Make s heate r more effici ent. Comple te installa tion and operating instructions included. Therm ostat icall y-con troll ed, blower turns itself on and off as required. ACCESSORIES Pu rc ha se th es e heat er ac ce ssor ies fro m you r loca l d[...]

www .desatech.com 107882-01K 24 2 3 5 6 8 9 9 10 11 12 13 14 16 18 19 4 7 1 21 20 15 17 22 ILL USTRA TED P ARTS BREAKDOWN MODELS CBN20 CBP20 SBN20 SBP20[...]

www .desatech.com 107882-01K 25 P ARTS LIST This list contains replaceable parts used in your heater . When ordering parts, follow the instructions listed under Replacement Parts on page 22 of this manual. P ART NUMBER KEY CBN20 CBP20 NO. SBN20 SBP20 DESCRIPTION QTY . 1 097159-04 097159-04 Piezo Ignitor 1 2 107954-01 107954-01 Front Panel 1 3 10787[...]

www .desatech.com 107882-01K 26 ILL USTRA TED P ARTS BREAKDOWN MODELS CBN20T , CBP20T CBN30T , CBP30T CBN20TK, CBP20TK 2 9 9 10 11 12 13 14 16 18 19 4 7 1 15 17 3 5 6 8 20[...]

www .desatech.com 107882-01K 27 P ARTS LIST This list contains replaceable parts used in your heater . When ordering parts, follow the instructions listed under Replacement Parts on page 22 of this manual. P ART NUMBER KEY CBN20T CBP20TK NO. CBN20TK CBP20T CBN30T CBP30T DESCRIPTION QTY . 1 097159-04 097159-04 097159-04 097159-04 Piezo Ignitor 1 2 1[...]

www .desatech.com 107882-01K 28 ILL USTRA TED P ARTS BREAKDOWN MODELS CBT20NT , CBT20PT CBT30NT , CBT30PT 20 2 12 13 7 15 3 5 6 8 9 4 1 17 19 14 18 16 9 10 11 AA Battery Positive UP AAA Battery Negative UP Install Battery According T o This Illustration (Determine which ignitor your heater uses)[...]

www .desatech.com 107882-01K 29 P ARTS LIST This list contains replaceable parts used in your heater . When ordering parts, follow the instructions listed under Replacement Parts on page 22 of this manual. KEY P ART NUMBER NO. CBT20NT CBT20PT CBT30NT CBT30PT DESCRIPTION QTY . 1 1 1 1435-01 1 1 1435-01 1 1 1435-01 1 1 1435-01 Electronic Ignitor 1 2 [...]

www .desatech.com 107882-01K 30 T ool and Equipment, Co. 5 Manila A ve Hamden, CT 06514-0322 1-800-397-7553 203-248-7553 Portable Heater Parts 342 N. County Rd. 400 East V alparaiso, IN 46383-9704 219-462-7441 1-888-619-7060 www .portableheaterparts.com sales@portableheaterparts.com techservice@portableheaterparts.com FBD 1349 Adams Street Bowling [...]

www .desatech.com 107882-01K 31 _____________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ____________________________________________[...]

WARRANTY INFORMA TION KEEP THIS WARRANTY Model ____________________________________ Serial No. __________________________________ Date of Purchase ____________________________ LIMITED WARRANTY VENT -FREE RESIDENTIAL GAS HEA TERS DESA Heating Products warrants this product to be free from defects in materials and components for two (2) years from th[...]