Desa CBT30NT, CBT30PT - Manuals

Page 2 - Air for Combustion and Ventilation; section on page 5 of this manual.; State of Massachusetts:; wealth of Massachusetts.; TABLE OF CONTENTS

www.desatech.com 107882-01M 2 WARNING: 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, servic...

Page 3 - SAFETY INFORMATION; Get fresh

www.desatech.com 3 107882-01M SAFETY INFORMATION WARNING: This product con- tains and/or generates chemicals known to the State of California to cause cancer or birth defects or other reproductive harm. IMPORTANT: Read this owner’s manual carefully and completely b e f o r e t r y i n g t o a s s e ...

Page 4 - LOCAL CODES; The; Continued; Front Panel; UNPACKING; SAFETY DEVICE; PRODUCT

www.desatech.com 107882-01M 4 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 Ventilation, page 5. 6. Keep all ...

Page 5 - National Fuel; Unusually Tight Construction; Ventilation Air From Outdoors; Confined and Unconfined Space

www.desatech.com 5 107882-01M AIR FOR COMBUSTION AND VENTILATION WARNING: 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 proper fresh air f...

Page 6 - National Fuel Gas Code,; VENTILATION AIR; Ventilation Air From Inside Building; National Fuel Gas Code, ANSI

www.desatech.com 107882-01M 6 DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION Determining if You Have a Conﬁned or Unconﬁned Space Use this work sheet to determine if you have a conﬁned or unconﬁned space. Space: Includes the room in which you will install heater plus any adjoining rooms with doorles...

Page 7 - Ventilation Air From Outdoors; National Fuel Gas; INSTALLATION; CHECK GAS TYPE; Accessories

www.desatech.com 7 107882-01M AIR FOR COMBUSTION AND VENTILATION Continued Ventilation Air From Outdoors Provide extra fresh air by using ventilation grills or ducts. You must provide two permanent open- ings: one within 12" (30.4 cm) of the ceiling and one within 12" (30.4 cm) of the ﬂoor. ...

Page 8 - Figure 5 - Attaching Thermostat Sensing; LOCATING HEATER; THERMOSTAT SENSING BULB

www.desatech.com 107882-01M 8 IMPORTANT: Vent-free heaters add moisture to the air. Although this is beneﬁcial, installing heater in rooms without enough ventilation air may cause mildew to form from too much moisture. See Air for Combustion and Ventilation, page 5. If high humid- ity is experienced...

Page 9 - INSTALLING HEATER TO WALL; Mounting Bracket; Locate mounting bracket in heater carton. Remove; Removing Front Panel Of Heater; Remove the four painted screws, two on each; Marking Screw Locations; m u m c l e a r a n c e s s h o w n i n; Attaching Mounting Bracket To Wall

www.desatech.com 9 107882-01M INSTALLING HEATER TO WALL Mounting Bracket Locate mounting bracket in heater carton. Remove mounting bracket from heater carton. Figure 6 - Mounting Bracket INSTALLATION Continued Removing Front Panel Of Heater 1. Remove the four painted screws, two on each side of fron...

Page 10 - Attaching To Wall Stud Method; Anchor

www.desatech.com 107882-01M 10 Side View Front View Attaching To Wall Stud Method For attaching mounting bracket to wall studs1. Drill holes at marked locations using 9/64" drill bit. 2. Place mounting bracket onto wall. Line up last hole on each end of bracket with holes drilled in wall. 3. Ins...

Page 11 - CONNECTING TO GAS SUPPLY; Mounting Base Feet to Heater; Removing Front

www.desatech.com 11 107882-01M INSTALLATION Continued CONNECTING TO GAS SUPPLY WARNING: This appliance requires a 3/8" NPT (National Pipe Thread) inlet connection to the pressure regulator. WARNING: A qualiﬁed ser- vice person must connect heater to gas supply. Follow all local codes. WA R N I N...

Page 12 - Natural Gas; From Gas Meter; Figure 14 - External Regulator With Vent

www.desatech.com 107882-01M 12 INSTALLATION Continued * A CSA design-certiﬁed equipment shutoff valve with 1/8" NPT tap is an acceptable alternative to test gauge connection. Purchase the optional CSA design-certiﬁed equipment shutoff valve from your dealer. See Accessories , page 26. Figure 15 ...

Page 13 - CHECKING GAS CONNECTIONS; ing to Gas Supply; Figure 18 - Checking Gas Joints for

www.desatech.com 13 107882-01M INSTALLATION Continued CHECKING GAS CONNECTIONS WARNING: Test all gas piping and connections, internal and external to unit, for leaks after installing or servicing. Correct all leaks at once. WARNING: Never use an open ﬂame to check for a leak. Apply a noncorrosive le...

Page 14 - OPERATING HEATER; FOR YOUR SAFETY READ; low these instructions exactly,; LIGHTING; Figure 19 - Control Knob In The OFF

www.desatech.com 107882-01M 14 6. Turn control knob counterclockwise to the PILOT position. Press in control knob for ﬁve (5) seconds. 7. With control knob pressed in, push down and release ignitor button. This will light pilot. The pilot is attached to the front of burner. Note: You may be running ...

Page 15 - INSPECTING HEATER; PILOT FLAME PATTERN; To Turn Off Gas to Ap-

www.desatech.com 15 107882-01M OPERATING HEATER Continued INSPECTING HEATER Check pilot ﬂame pattern and burner ﬂame pat- tern often. PILOT FLAME PATTERN Figure 21 shows a correct pilot ﬂame pattern. Figure 22 shows an incorrect pilot ﬂame pattern. The incor- rect pilot ﬂame is not touching the ther...

Page 16 - BURNER FLAME PATTERN; To Turn Off Gas to Appli-; CLEANING AND; BURNER PILOT AIR INLET

www.desatech.com 107882-01M 16 INSPECTING HEATER Continued BURNER FLAME PATTERN WARNING: If yellow tipping occurs, your heater could pro- duce increased levels of carbon monoxide. NOTICE: Do not mistake orange ﬂames with yellow tipping. Dirt or other ﬁne particles enter the heater and burn causing b...

Page 17 - CABINET; Air Passageways; SERVICE HINTS; When Gas Pressure Is Too Low; TECHNICAL SERVICE

www.desatech.com 17 107882-01M 1. Shut off the unit, including the pilot. Allow the unit to cool for at least thirty minutes. 2. Inspect burner, pilot for dust and dirt.3. Blow air across the ports/slots and holes in the burner. 4. Never insert objects into the pilot tube.Clean the pilot assembly al...

Page 18 - TROUBLESHOOTING; WARNING: Turn off and unplug heater and let cool before servicing.; POSSIBLE CAUSE; Cleaning; OBSERVED PROBLEM

www.desatech.com 107882-01M 18 TROUBLESHOOTING WARNING: Turn off and unplug heater and let cool before servicing. 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 trouble...

Page 19 - Cleaning and Maintenance

www.desatech.com 19 107882-01M TROUBLESHOOTING Continued POSSIBLE CAUSE 1. Control knob not fully pressed in 2. Control knob not pressed in long enough 3. Equipment shutoff valve not fully open 4. Thermocouple connection loose at control valve 5. Pilot ﬂame not touching ther- mocouple, which allows ...

Page 21 - IMPORTANT; REMEDY

www.desatech.com 21 107882-01M TROUBLESHOOTING Continued WARNING: If you smell gas • Shut off gas supply. • Do not try to light any appliance. • Do not touch any electrical switch; do not use any phone in your building. • Immediately call your gas supplier from a neighbor’s phone. Fol- low the gas s...

Page 22 - SPECIFICATIONS

www.desatech.com 107882-01M 22 SPECIFICATIONS CBN20T • Natural Gas• 10,000/20,000 Btu/Hr (Variable)• Piezo Ignition• Pressure Regulator Setting - 3" W.C.• Inlet Gas Pressure* (in. of water) Maximum - 10.5" - Minimum - 4"• Heater Dimensions H x W x D 26.25" x 18.25" x 7" (66.7...

Page 23 - REPLACEMENT PARTS; PARTS UNDER WARRANTY; SERVICE PUBLICATIONS

www.desatech.com 23 107882-01M REPLACEMENT PARTS Note: Use only original replacement parts. This will protect your warranty coverage for parts replaced under warranty. PARTS UNDER WARRANTY Contact authorized dealers of this product. If they canʼt supply original replacement part(s), call DESA Heatin...

Page 24 - ILLUSTRATED PARTS BREAKDOWN

www.desatech.com 107882-01M 24 ILLUSTRATED PARTS BREAKDOWN MODELS CBN20T, CBP20T, CBN30T, CBP30T, CBT20NT, CBT20PT, CBT30NT AND CBT30PT AA Battery Positive UP AAA Battery Negative UP 2 9 10 11 12 13 14 16 18 19 4 15 3 5 6 8 20 9 1 1 7 17 21 Install battery according to this illustration (Actual igni...

Page 25 - PARTS LIST; listed under

www.desatech.com 25 107882-01M PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 23 of this manual. KEYNO. PART NO. DESCRIPTION QTY 1 111435-01 Electronic Ignitor • • • • 1 097159-04 Piezo Ignitor ...

Page 26 - ACCESSORIES; FLOOR MOUNTING KIT - GA4550; For all piezo ignitor models.

www.desatech.com 107882-01M 26 ACCESSORIES Purchase these heater accessories from your local dealer. If they can not supply these accessories, either contact your nearest Parts Central (see page 27) or call DESA Heating Products at 1-866-672-6040 for referral information. You can also write to the a...

Page 27 - PARTS CENTRAL; by providing original replacement parts and accessories.; Portable Heater Parts; Parts Department; Cans Unlimited

www.desatech.com 27 107882-01M PARTS CENTRAL These Parts Centrals are privately owned businesses. They have agreed to support our customerʼs needs by providing original replacement parts and accessories. Tool & Equipment Co. 5 Manila Ave Hamden, CT 06514-0322 1-800-397-7553 203-248-7553 Portable...

Page 28 - KEEP THIS WARRANTY; WARRANTY INFORMATION; Model; LIMITED WARRANTIES FOR NEW AND FACTORY; Patent Pending

107882 01 KEEP THIS WARRANTY WARRANTY INFORMATION Model Serial No. Date Purchased P.O. Box 90004Bowling Green, KY 42102-9004www.desatech.com Always specify model and serial numbers when communicating with the factory.We reserve the right to amend these speciﬁcations at any time without notice. The o...