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UNVENTED (VENT-FREE) INFRARED GAS HEATER

SAFETY INFORMATION AND INSTALLATION MANUAL

MODELS NZ108 AND NZ109

For more information, visit www.desatech.com

WARNING: 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.

—  Do  not  store  or  use  gasoline  or  other  flammable 

vapors and liquids in the vicinity of this or any other 

appliance.

—  WHAT TO DO IF YOU SMELL GAS

•  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.

—  Installation and service must be performed by a quali-

fied installer, service agency or the gas supplier.

INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.

Actual heater may 

vary from illustration

Summary of Contents for NZ108

Page 1: ...the vicinity of this or any other appliance WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do not touch any electrical switch do not use any phone in your building Immediatelycallyourga...

Page 2: ...tured mobile home where not prohib ited by local codes Aftermarket Completion of sale not for purpose of resale from the manufacturer WARNING This product contains and or generates chemicals known to...

Page 3: ...etoavoidburnsorclothing ignition Heater will remain hot for a time after shutdown Allow surface to cool before touching Carefully supervise young chil dren when they are in the same room with heater M...

Page 4: ...andards Institute Inc 1430 Broadway New York NY 10018 National Fire Protection Association Inc Batterymarch Park Quincy MA 02269 State of Massachusetts The installation must be made by a licensed plum...

Page 5: ...air that leaks around doors and windows may provide enough fresh air for combustion and ventilation However in buildings of un usually tight construction you must provide additional fresh air Unusual...

Page 6: ...upport ________ Btu Hr actual amount AIR FOR COMBUSTION AND VENTILATION Continued Example 51 200 Btu Hr maximum the space can support 60 000 Btu Hr actual amount of Btu Hr used The space in the above...

Page 7: ...for use as supplemental heat Use this heater along with your primary heating system Do not install this heater as your pri mary heat source If you have a centralheatingsystem youmay run system s circ...

Page 8: ...nimum To Top Surface Of Carpeting Tile Or Other Combustible Material Left Side Right Side 10 25 4 cm INSTALLATION ITEMS Before installing heater make sure you have the items listed below for propane L...

Page 9: ...d al lows you to attach mounting bracket to hollow walls wall areas between studs or to solid walls concrete or masonry Decide which method better suits your needs Either method will provide a secure...

Page 10: ...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 h...

Page 11: ...nal Regulator With Vent Pointing Down External Regulator Propane LP Supply Tank Vent Pointing Down Figure 13 Installing Base Feet Sheet Metal Screw Wood Screw Base Foot Mounting Base Feet to Floor 1 R...

Page 12: ...n must include equipment shutoff valve union and plugged 1 8 NPT tap Locate NPT tap within reach for test gauge hook up NPT tap must be upstream from heater see Figure 15 IMPORTANT Install an equipmen...

Page 13: ...her opening propane LP supply tank valve for propane LP gas or opening main gas valve located on or near gas meter for natural gas or using compressed air Figure 18 Checking Gas Joints for Propane LP...

Page 14: ...by hand When lighting the pi lot follow these instructions exactly B BEFORE LIGHTING smell all around the appliance area for gas Be sure to smell next to the floor because some gas is heavier than air...

Page 15: ...contact a qualified service person or gas supplier for repairs Until repairs are made light pilot with match To light pilot with match see Manual Lighting Procedure 8 Keep control knob pressed in for...

Page 16: ...ttern Operating Heater Continued THERMOSTAT CONTROL OPERATION The thermostatic control used on these models differs from standard thermostats Standard thermostats simply turn on and off the burner The...

Page 17: ...CABINET Air Passageways Use pressurized air to clean Exterior Use a soft cloth dampened with a mild soap and water mixture Wipe the cabinet to re move dust Figure 27 Pilot Air Inlet Pilot Assembly Pi...

Page 18: ...tor setting is not correct 1 Not enough combustion ventilation air REMEDY 1 Replace pilot assembly 2 Replace pilot assembly 3 Reconnect ignitor cable 4 Free ignitor cable if pinched by any metal or tu...

Page 19: ...il snug then tighten 1 4 turn more 5 A Contact local natural or propane LP gas company B Clean ODS pilot see Cleaning and Maintenance page 17 or replace ODS pilot assembly 6 Replace pilot assembly 7 R...

Page 20: ...te and correct all leaks see Checking Gas Con nections page 12 2 Replace control valve 1 Take apart gas tubing and remove foreign matter 2 Locate and correct all leaks see Checking Gas Con nections pa...

Page 21: ...e Heater Weight 22 lb 10 kg Average Shipping Weight 25 5 lb 11 6 kg Note Dimensions listed are outer most points on the heater includes control knobs and grill For purposes of input adjustment Wiring...

Page 22: ...www desatech com 119171 01E 22 Illustrated Parts Breakdown Cabinet body Models NZ108 and NZ109 8 5 6 7 4 3 1 2 16 10 9 11 12 13 17 14 18 20 15 29 21 22 16 23 See page 24...

Page 23: ...Control Knob 1 12 099415 18 Gas Regulator Propane LP Gas 1 099415 19 Gas Regulator Natural Gas 1 13 104819 02 Regulator Bracket 1 14 119099 01 Lower Baffle 1 15 099038 01 Strain Relief Bushing 1 16 1...

Page 24: ...hermocouple Kit 1 3 099387 11 Pilot Tubing 1 4 104818 03 Outlet Tubing Valve to Burner 1 5 099218 08 Burner 1 6 099056 24 Injector Plaque A or C 1 2 099056 25 Injector Plaque A or C 1 2 7 099056 01 In...

Page 25: ...page 27 or call DESA Heat ing Products at 1 866 672 6040 for referral information When calling DESA Heating Products have ready model number of your heater the replacement part number Service Hints Wh...

Page 26: ...866 672 6040 for referral in formation You can also write to the address listed on the back page of this manual equipment SHUTOFF VALVE GA5010 For all models Equipment shutoff valve with 1 8 NPT tap...

Page 27: ...Street Bowling Green KY 42103 3414 270 846 1199 1 800 654 8534 Fax 1 800 846 0090 franktalk aol com Master Parts Dist 1251 Mound Ave NW Grand Rapids MI 49504 2672 616 791 0505 1 800 446 1446 www nbmc...

Page 28: ...will provide original factory replacement parts Failure to use original factory replacement parts voids this warranty The heater MUST be installed by a qualified installer in accordance with all loca...

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