UNVENTED (VENT-FREE) INFRARED REMOTE CONTROL GAS HEATER SAFETY INFORMATION AND INSTALLATION MANUAL Actual heater may vary from illustration. Models nZ100, nZ101, nZ102, nZ103 nZ104, nZ105, nZ106, nZ107 nZ116, nZ117, nZ118, nZ119 WARNING: If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life. — Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
Table of Contents Safety Information................................................ 2 Local Codes......................................................... 4 Unpacking............................................................ 4 Product Identification............................................ 4 Product Features.................................................. 4 Air For Combustion And Ventilation...................... 5 Installation............................................................
Safety Information Continued 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. Make certain you read and understand all warnings. Keep this manual for reference. It is your guide to safe and proper operation of this heater. WARNING: Any change to this heater or its controls can be dangerous.
SAFETY INFORMATION Product Identification Continued 11. Turn off and unplug heater and let cool before servicing. Only a qualified service person should service and repair heater. 12. Operating heater above elevations of 4,500 feet (1,371 m) could cause pilot outage. 13. To prevent performance problems, do not use propane/LP fuel tank of less than 100 lbs. (45 kg) capacity. 14. Before using furniture polish, wax, carpet cleaner or similar products, turn heater off.
Air For Combustion And Ventilation WARNING: This heater shall not be installed in a confined space or unusually tight construction unless provisions are provided for adequate combustion and ventilation air. Read the following instructions to insure proper fresh air for this and other fuel-burning appliances in your home. Today’s homes are built more energy efficient than ever. New materials, increased insulation and new construction methods help reduce heat loss in homes.
AIR FOR COMBUSTION AND VENTILATION Continued 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 doorless passageways or ventilation grills between the rooms. 1. Determine the volume of the space (length x width x height). Length x Width x Height =__________cu. ft.
AIR FOR COMBUSTION AND VENTILATION Continued Ventilation Air From Inside Building This fresh air would come from an adjoining unconfined space. When ventilating to an adjoining unconfined space, you must provide two permanent openings: one within 12" of the ceiling and one within 12" of the floor on the wall connecting the two spaces (see options 1 and 2, Figure 2). You can also remove door into adjoining room (see option 3, Figure 2). Follow the National Fuel Gas Code, ANSI Z223.1/NFPA 54, Section 5.
Installation Continued INSTALLATION ITEMS Before installing heater, make sure you have the items listed below. • for propane/LP gas, external regulator (supplied by installer) • piping (check local codes) • sealant (resistant to propane/LP gas) • equipment shutoff valve * • ground joint union • sediment trap • tee joint • pipe wrench • for natural gas, test gauge connection* * A CSA design-certified equipment shutoff valve with 1/8" NPT tap is an acceptable alternative to test gauge connection.
Installation Continued INSTALLING HEATER TO WALL Mounting Bracket Locate mounting bracket in heater carton. Remove mounting bracket from heater carton. Figure 5 - Mounting Bracket Removing Front Panel Of Heater 1. Remove the four painted screws, two on each side of front panel. 2. Pull bottom of front panel forward, then out. 3. Remove any remaining packaging materials. Front Panel Screw Marking Screw Locations 1. Tape mounting bracket to wall where heater will be located.
Installation Horizontal Slots Continued Attaching To Wall Stud Method For attaching mounting bracket to wall studs 1. 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. Insert mounting screws through bracket and into wall studs. 4. Tighten screws until mounting bracket is firmly fastened to wall studs.
Installation Continued Mounting heater 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. Align holes in base foot with mounting holes on bottom of cabinet (see Figure 12). 3. Secure base foot to heater using sheet metal screws. 4. Repeat for other side. 2. Remove battery cover on receiver and install batteries as shown in Figure 13. Replace battery cover. 3.
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 service person must connect heater to gas supply. Follow all local codes. WARNING: For natural gas, never connect heater to private (non-utility) gas wells. This gas is commonly known as wellhead gas. IMPORTANT: For natural gas, check gas line pressure before connecting heater to gas line. Gas line pressure must be no greater than 10.
Installation Pressure Testing Gas Supply Piping System Continued IMPORTANT: Install an equipment shutoff valve in an accessible location. The equipment shutoff valve is for turning on or shutting off the gas to the appliance. Apply pipe joint sealant lightly to male NPT threads. This will prevent excess sealant from going into pipe. Excess sealant in pipe could result in clogged heater valves. WARNING: Use pipe joint sealant that is resistant to liquid petroleum (LP) gas.
Installation Connecting to electrical supply Continued Gas Control Valve Gas Meter Equipment Shutoff Valve Figure 19 - Checking Gas Joints for Natural Gas Gas Control Valve Propane/LP Supply Tank WARNING: Fan accessory must be grounded. Fan comes with a three-prong, grounding plug as shown in Figure 21. The plug is your protection against electrical shock. Plug it into a standard, three-hole, grounded, outlet. If cord needs replacing, use only a cord with a threeprong, grounding plug.
FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. LOT PI LIGHTING INSTRUCTIONS 1. STOP! Read the safety information above. 2. Make sure equipment shutoff valve is fully open. 3. Turn off any electric power to the appliance if service is to be performed. 4. Turn pilot knob clockwise to the OFF position. 5. Wait five minutes to clear out any gas.
Operating Heater Continued WARNING: Always operate manual control heaters at the locked positions. Operation between these positions may create a possible health hazard if used in a poorly ventilated room. Read owner’s manual for complete instructions. CAUTION: Do not try to adjust heating levels by using the equipment shutoff valve. Remote Control The remote control has ON, OFF, THERMOSTAT, and PROGRAM functions. This is part of the system’s design.
Operating Heater Continued 2 P1 P2 AM PM P1 P2 ON OFF THERMO 3 8 7 4 1 SET ROOM 5 PM FLAME 6 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/PROGRAM - Activates time setting and activates PROGRAM mode. SET - Used to set clock and timer.
Operating Heater Continued To 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. When the program mode is activated, the P-1 and P-2 icons and the word OFF will display on the screen. This means that unit turns off manual mode and enters into program mode.
Operating Heater Continued Note: When lock-out mode is activated letters CP will appear in room temp window. After activation is complete room temp window will default back to displaying room temperature. If any buttons are pressed room temp window will then display CP indicating remote control is in lock-out mode. Remote Receiver (located inside heater) The remote receiver operates on 4 AA 1.5V batteries (included).
Operating Heater Continued Operating Blower This heater has a thermostatic blower that will automatically turn ON or OFF. Note: Your heater and thermostat blower will not turn on and off at the same time. The heater may run for several minutes before the blower turns on. After the heater modulates to the pilot position, the blower will continue to run. The blower will shut off after the heater cabinet temperature decreases. Note: It is safe to operate heater with blower turned off.
Cleaning and Maintenance WARNING: Turn off heater and let cool before cleaning. CAUTION: You must keep control areas, burner and circulating air passageways of heater clean. Inspect these areas of heater before each use. Have heater inspected yearly by a qualified service person. Heater may need more frequent cleaning due to excessive lint from carpeting, bedding material, pet hair, etc. WARNING: Failure to keep the primary air opening(s) of the burner(s) clean may result in sooting and property damage.
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 troubleshooting items are listed in order of operation. OBSERVED PROBLEM POSSIBLE CAUSE REMEDY When ignitor button is pressed in, there is no spark at ODS/pilot 1. Ignitor electrode positioned wrong 2. Ignitor electrode broken 3.
TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY ODS/pilot lights but flame goes out when control knob is released 1. Control knob not fully pressed in 2. Control knob not pressed in long enough 1. Press in control knob fully 3. Equipment shutoff valve not fully open 4. Thermocouple connection loose at control valve 5. Pilot flame not touching thermocouple, which allows thermocouple to cool, causing pilot flame to go out.
TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Burner plaque(s) does not glow 1. Plaque damaged 2. Inlet gas pressure is too low 3. Control knob set between locked positions 1. Replace burner 2. Contact local natural or propane/LP gas company 3. Turn control knob until it locks at desired setting Slight smoke or odor during initial operation 1. Residues from manufacturing processes 1.
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. Follow the gas supplier’s instructions. • If you cannot reach your gas supplier, call the fire department. IMPORTANT: Operating heater where impurities in air exist may create odors.
Illustrated Parts Breakdown Models nZ100, nZ101, nZ102, nZ103, nZ104, nZ105, nZ106, nZ107, nZ116, nZ117, nZ118 AND nZ119 7 1 22 17 15 25 11 23 9 20 24 10 21 PILOT ON OFF 4 8 12 14 18 6 13 9 19 5 3 16 2 26 www.desatech.
Parts List KEY NO. PART NO.
ILLUSTRATED PARTS BREAKDOWN and PARTS LIST Burner Assembly 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.
Specifications NZ100, NZ104, NZ116 NZ102, NZ106, NZ118 • • • • • 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 Weight: 22 lb (10 kg) • Average Shipping Weight: 25.5 lb (11.6 kg) • • • • • NZ101, NZ105, NZ117 NZ103, NZ107, NZ119 • • • • • • • • • • Propane/LP Gas 16,000 Btu/hr Piezo Ignition Pressure Regulator Setting: 8" W.C. Inlet Gas Pressure* (in.
Replacement Parts Accessories Note: Use only original replacement parts. This will protect your warranty coverage for parts replaced under warranty. Purchase these heater accessories from your local dealer. If they can not supply these accessories, either contact your nearest Parts Central (see page 31) or call DESA Heating Products at 1-866-672-6040 for referral information. You can also write to the address listed on the back page of this manual.
Parts Central These Parts Centrals are privately owned businesses. They have agreed to support our customer’s 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 Heater Parts 342 N. County Rd. 400 East Valparaiso, IN 46383-9704 219-462-7441 1-888-619-7060 www.portableheaterparts.com sales@portableheaterparts.com techservice@portableheaterparts.
Warranty Information KEEP THIS WARRANTY Model Serial No. Date Purchased 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 only warranty applicable is our standard written warranty. We make no other warranty, expressed or implied.