Instruction/ maintenance manual of the product NZ103 NZ104 Desa
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UNVENTED (VENT -FREE) INFRARED REMOTE CONTR OL GAS HEA TER SAFETY INFORMA TION AND INST ALLA TION MANU AL For more information, visit www .desatech.com W ARNING: If the information in this manual is not fol- lowed exactly , a re or explosion may result causing property damage, personal injury or loss of life.
www .desatech.com 1 18621-01B 2 SAFETY INFORMA TION W ARNI NG: Im prope r in - st al la ti on , ad ju st me nt , al - te ra ti on , se rv ic e or m ain te - na nc e c an ca us e i nj ur y o r pr op er ty da ma ge . Re fe r to th is ma n ua l fo r c o rr e ct in - st al la ti on an d op er at io na l p r o c e d u r e s .
www .desatech.com 3 1 18621-01B Natural and Propane/LP Gas: Natural and Pro - pane/LP gases are odorless. An odor-making agent is added to these gases. The odor helps you detect a gas leak. However , the odor added to the gas can fade. Gas may be present even though no odor exists.
www .desatech.com 1 18621-01B 4 1 1. Turn off and unplug heater and let cool before servicing. Only a qualied service person should service and repair heater . 12 . Operating heater above elevations of 4,500 feet (1,371 m) could cause pilot outage.
www .desatech.com 5 1 18621-01B AIR FOR COMB USTION AND VENTILA TION W ARNING: This heater shall not be installed in a conned space or unusually tight con - struction unless provisions are provided for adequate combus - tion and ventilation air .
www .desatech.com 1 18621-01B 6 DETERMINING FRESH-AIR FLOW FOR HEA TER LOCA TION Determining if Y ou Have a Conned or Unconned Space Use this work sheet to determine if you have a conned or unconned space.
www .desatech.com 7 1 18621-01B VENTILA TION AIR V entilation Air From Inside Building This fresh air would come from an adjoining unconned space. When ventilating to an adjo ining uncon ned spa.
www .desatech.com 1 18621-01B 8 CAUTION: This heater cre- ates warm air currents. These currents move heat to wall sur- faces next to heater . Installing heater next to vinyl or cloth wall coverings o.
www .desatech.com 9 1 18621-01B INST ALLING HEA TER TO W ALL Mounting Bracket Loca te mounting bracke t in heater carto n. Re - move mounting bracket from heater carton. Removing Front Panel Of Heater 1. Remove the four painted screws, two on each side of front panel.
www .desatech.com 1 18621-01B 10 Placing Heater On Mounting Bracket 1. Locate two horizontal slots on back panel of heater . 2. Plac e heate r onto mount ing bracke t.
www .desatech.com 1 1 1 18621-01B MOUNTING HEA TER TO FLOOR WITH OPTIONAL FLOOR KIT Mounting Base Feet to Heater 1. Lay heater cabinet on its back on a table with the heater bottom overhanging the table edge. 2. Al ign ho le s i n ba se fo ot wi th mou nti ng ho les on b ot tom o f ca bi net (se e Fi gure 12) .
www .desatech.com 1 18621-01B 12 T ee Pipe Cap Joint Nipple T ee Joint Reducer Bushing to 1/8" NPT 1/8" NPT Plug T ap * A CSA design-certied equipment shutof f valve with 1/8" NPT tap is an acceptable al - ternative to test gauge connection.
www .desatech.com 13 1 18621-01B INST ALLA TION Continued IMPORT ANT : Install an equipment shutoff valve in an accessible location. The equip - ment shutoff valve is for turning on or shutting off the gas to the appliance. Apply pipe joint sealant lightly to male NPT threads .
www .desatech.com 1 18621-01B 14 INST ALLA TION Continued PRESSURE TESTING HEA TER GAS CONNECTIONS 1. O p e n e q u i p m e n t s h u t o f f v a l v e ( s e e Figure 18, page 13). 2. For natural gas open main gas valve located on or near gas meter . For pro - pane/LP gas open propane/LP supply tank valve.
www .desatech.com 15 1 18621-01B smel l gas , ST OP! F ollow “B” i n the s afet y info rmat ion, column 1. If you don ’t smel l gas, go to t he ne xt s tep. 6. Press in pilot knob and turn control knob counterclockwise to the PILOT position. Keep pilot knob pressed in for ve (5) seconds (see Figure 22).
www .desatech.com 1 18621-01B 16 OPERA TING HEA TER Continued Remote Control The remote control has ON, OFF , THERMO - ST A T , and PROGRAM functions. This is part of the system’s design. If the LCD screen is not working check the position of the remote control’s battery .
www .desatech.com 17 1 18621-01B ON OFF THERMO SET PM FLAME ROOM 1 8 7 2 3 5 4 6 P2 P1 2 P 1 P AM PM Figure 25 - LCD Display Buttons MODE - Changes modes from ON, THERMO and OFF . DOWN - Lowers set temperature in THERMO mode. UP - Increases set temperature in THERMO mode TIME/PR OGRAM - Activa tes time setting and activates PROGRAM mode.
www .desatech.com 1 18621-01B 18 T o Activate the Program Mode A short push (press and release) on TIME/ PROGRAM button will activate or deactivate program mode. A long push (press and hold for more than 5 seconds) on TIME/PROGRAM button will enter into setting of program.
www .desatech.com 19 1 18621-01B + + 1 9 13 5 7 3 11 15 A M E G C K I O 1 9 13 7 5 3 11 15 OFF REMOTE A M E G C K I O Figure 27 - Receiver Slide Switch Receiver + + 1 9 13 5 7 3 11 15 A M E G C K I O .
www .desatech.com 1 18621-01B 20 INSPECTING HEA TER Check pilot ame pattern and burner ame pattern often. PILOT FLAME P A TTERN Figure 29 shows a correct pilot ame pattern. Figure 30 shows an incorrect pilot ame pat - tern. The incorrect pilot ame is not touching the thermocouple.
www .desatech.com 21 1 18621-01B 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 passageways of heater clean. Inspect the se areas of heater before each use.
www .desatech.com 1 18621-01B 22 TROUBLESHOO TING W AR NI NG : Tur n off a nd unp lu g hea te r and l et c oo l bef ore se rvi cin g. Onl y a qua lie d s ervi ce pers on shou ld serv ice and re pair he ater . CAUTION: Never use a wire, needle or similar object to clean ODS/pilot.
www .desatech.com 23 1 18621-01B TROUBLESHOO TING Continued POSSIBLE CAUSE 1 . Control knob not fully pressed in 2. Control knob not pressed in long enough 3.
www .desatech.com 1 18621-01B 24 TROUBLESHOO TING Continued POSSIBLE CAUSE 1. Plaque damaged 2. Inlet gas pressure is too low 3. Control knob set between locked positions 1. Re si due s fro m man uf ac - turing processes 1 . Metal expanding while heating or contracting while cooling 1.
www .desatech.com 25 1 18621-01B TROUBLESHOO TING Continued POSSIBLE CAUSE 1. Heater burning vapors from paint, hair spray , glues, etc. S e e IMPORT ANT s t a t e - ment above 2. Low fuel supply (propane/ LP gas only) 3. G a s l e a k . S ee Wa r n i n g statement at top of page 1.
www .desatech.com 1 18621-01B 26 O F F P IL O T O N 20 10 4 21 24 19 2 3 8 16 18 14 6 9 13 7 1 15 25 22 23 1 1 17 9 5 12 ILL USTRA TED P ARTS BREAKDOWN MODELS NZ100, NZ101, NZ102, NZ103, NZ104, NZ105,.
www .desatech.com 27 1 18621-01B P ARTS LIST This list contains replaceable parts used in your heater . When ordering parts, follow the instructions listed under Replacement Parts on page 30 of this manual.
www .desatech.com 1 18621-01B 28 KEY NO. P ART NO. DESCRIPTION QTY . 1 1 10803-03 ODS/Pilot • • • 1 1 10803-02 ODS/Pilot • • • 1 2 1 10186-01 Thermocouple Kit • • • • • • 1 3 1.
www .desatech.com 29 1 18621-01B SPECIFICA TIONS NZ100, NZ104, NZ1 16 • Natural Gas • 18,000 Btu/hr • Piezo Ignition • Pressure Regulator Setting: 6" W .C. • Inlet Gas Pressure* (in. of water): Maximum - 10.5", Minimum - 7" • Average Heater W eight: 22 lb (10 kg) • A ve rag e Sh ippi ng We ig ht : 25.
www .desatech.com 1 18621-01B 30 REPLACEMENT P ARTS Note: Use only original replacement parts. This will protect your warranty coverage for parts replaced under warranty .
www .desatech.com 31 1 18621-01B P ARTS CENTRAL These Parts Centrals are privately owned businesses. They have agreed to support our customer ’s needs by providing original replacement parts and accessories. T ool & Equipment Co. 5 Manila Ave Hamden, CT 06514-0322 1-800-397-7553 203-248-7553 Portable Heater Parts 342 N.
KEEP THIS WARRANTY WARRANTY INFORMA TION 2701 Industrial Drive P .O. Box 90004 Bowling Green, KY 42102-9004 www .desatech.com Always specify model and serial numbers when communicating with the factory . We reserve the right to amend these specications at any time without notice.
An important point after buying a device Desa NZ103 NZ104 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Desa NZ103 NZ104 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 Desa NZ103 NZ104 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Desa NZ103 NZ104 you will learn all the available features of the product, as well as information on its operation. The information that you get Desa NZ103 NZ104 will certainly help you make a decision on the purchase.
If you already are a holder of Desa NZ103 NZ104, 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 Desa NZ103 NZ104.
However, one of the most important roles played by the user manual is to help in solving problems with Desa NZ103 NZ104. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Desa NZ103 NZ104 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
