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21

118621-01B

CLEANING AND 

MAINTENANCE

  WARNING:  Turn  off  heater 

and let cool before cleaning.

  CAUTION:  You  must  keep 

control areas, burner and circu

-

lating 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 clean

-

ing  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.

ODS/PILOT AND bURNER

Use  a  vacuum  cleaner,  pressurized  air  or 
small, soft bristled brush to clean.

bURNER PILOT AIR INLET

The primary air inlet holes allow the proper 
amount of air to mix with the gas. This pro-
vides a clean burning flame. Keep these holes 
clear of dust, dirt and lint. Clean these air inlet 
holes prior to each heating season. Blocked 
air holes will create soot. We recommend that 
you clean the unit every three months during 
operation and have heater inspected yearly 
by a qualified service person.
We also recommend that you keep the burner 
tube and pilot assembly clean and free of dust 
and dirt. To clean these parts we recommend 
using compressed air no greater than 30 PSI. 
Your local computer store, hardware store or 
home center may carry compressed air in a 
can. If using compressed air in a can, please 
follow the directions on the can. If you don't 
follow directions on the can, you could dam-
age the pilot assembly.
1.  Shut off the unit, including the pilot. Allow 

the unit to cool for at least thirty minutes.

Figure 34 - Pilot Air Inlet

Pilot Assembly

Pilot Air Inlet

2.  Inspect burner, pilot for dust and dirt.
3.  Blow air through the ports/slots and holes 

in the burner.

4.  Never insert objects into the pilot tube.
Clean the pilot assembly also. A yellow tip on 
the pilot flame indicates dust and dirt in the 
pilot assembly. There is a small pilot air inlet 
about two inches from where the pilot flame 
comes out of the pilot assembly (see Figure 
34). With the unit off, lightly blow air through 
the air inlet. You may blow through a drinking 
straw if compressed air is not available.

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.

SERVICE HINTS

When Gas Pressure Is Too Low

•  pilot will not stay lit
•  burner will have delayed ignition
•  heater will not produce specified heat
•  propane/LP gas supply may be low
You may feel your gas pressure is too low. If 
so, contact your local natural or propane/LP 
gas supplier.

TECHNICAL SERVICE

You may have further questions about instal-
lation,  operation  or  troubleshooting.  If  so, 
contact  DESA  Heating  Products’  Technical 
Service  Department  at  1-866-672-6040. 
When  calling  please  have  your  model  and 
serial numbers of your heater ready.
You can also visit DESA Heating Products’ tech-
nical service web site at 

www.desatech.com.

Summary of Contents for NZ100

Page 1: ...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 Immediatelycallyourgassupplierfromaneighbor s phone Follow the ga...

Page 2: ...irth defects or other reproductive harm IMPORTANT Read this owner s manual carefully and completely beforetryingtoassemble operate or service this heater Improper use of this heater can cause seri ous...

Page 3: ...plate This appliance is not convertible for use with other gases 2 Do not place propane LP supply tank s inside any structure Locate propane LP supply tank s outdoors 3 This heater shall not be instal...

Page 4: ...wealth of Mas sachusetts Sellers of unvented propane or natural gas fired supplemental room heaters shall provide to each purchaser a copy of 527 CMR 30 upon sale of the unit Vent free gas products ar...

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 Unusuall...

Page 6: ...ion air from the outdoors and vents to the outdoors Example Gas water heater _ ____________ Btu Hr Vent free heater _ ___________ Btu Hr Total _ ___________ Btu Hr AIR FOR COMBUSTION AND VENTILATION C...

Page 7: ...heater Follow all local codes CHECK GAS TYPE Use only the correct type of gas natural or propane LP If your gas supply is not the correct gas type do not install heater Call dealer where you bought he...

Page 8: ...s Of Heater 2 5 1 cm FLOOR CEILING 36 91 5 cm Minimum Minimum To Top Surface Of Carpeting Tile Or Other Combustible Material Left Side Right Side 10 25 4 cm INSTALLATION ITEMS Before installing heater...

Page 9: ...igure 7 Mounting Bracket Clearances 18 3 4 47 6 cm Min 16 40 6 cm Min 14 35 6 cm 18 3 4 47 6 cm Min 12 30 4 cm Min Adjoining Wall 14 35 6 cm Adjoining Wall Only Insert Mounting Screws Through Last Hol...

Page 10: ...ront panel after making gas connections and checking for leaks see page 12 Figure 11 Installing Bottom Mounting Screws Side View Front View Wall Spacer Heater Attaching To Wall Stud Method For attachi...

Page 11: ...emote Control AAA Batteries Battery Cover Remote Control Figure 12 Installing Base Feet actual heater may vary from illustration Sheet Metal Screw Wood Screw Base Foot Mounting Base Feet to Floor Wher...

Page 12: ...lume will occur Typical Inlet Pipe Diameters 16 18 000 Btu hr models 3 8 or greater 26 30 000 Btu hr models 1 2 or greater Installation must include equipment shutoff valve union and plugged 1 8 NPT t...

Page 13: ...ure external regula tor has been installed between propane LP supply and heater See guidelines under Connect ing to Gas Supply page 12 Pressure Testing Gas Supply Piping System Test Pressures In Exces...

Page 14: ...ure 19 Checking Gas Joints for Natural Gas Equipment Shutoff Valve Gas Meter Gas Control Valve Connecting to electrical supply WARNING Fan accessory must be grounded Fan comes with a three prong groun...

Page 15: ...uple O F F P I L O T O N Figure 22 Pilot Knob In The ON Position Ignitor Pilot Knob Operating Heater FOR YOUR SAFETY READ BEFORE LIGHTING WARNING If you do not fol low these instructions exactly a fir...

Page 16: ...7 ROOM Indicates CURRENT room tem perature 8 F indicates degrees Fahrenheit C indi cates degrees Celsius WARNING Always operate manual control heaters at the locked positions Operation between these p...

Page 17: ...yed on the screen To set desired room temperature press MODE button to place re mote control into THERMO mode then press UP or DOWN button to select desired room temperature Within 5 seconds appliance...

Page 18: ...ash Push UP or DOWN but ton until desired on time for Program 1 is reached Press SET button 3 P1 OFF will flash Push UP or DOWN button until desired off time for Program 1 is reached Press SET button...

Page 19: ...ed When OFF button is pressed the remote control sends a RF signal to the receiver The receiver then sends a pulse of 6 volts of power to the solenoid The solenoid then closes gas flow to burner then...

Page 20: ...orrect burner flame pat tern Figure 33 shows an incorrect burner flame pattern If burner flame pattern is incorrect as shown in Figure 33 turn heater off see To Turn Off Gas to Ap pliance page 16 see...

Page 21: ...llow the directions on the can If you don t follow directions on the can you could dam age the pilot assembly 1 Shut off the unit including the pilot Allow the unit to cool for at least thirty minutes...

Page 22: ...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 23: ...ter ODS pilot lights keep control knob pressed in 30 seconds 3 Fully open equipment shut off valve 4 Hand tighten until snug then tighten 1 4 turn more 5 A Contact local natural or propane LP gas comp...

Page 24: ...ob until it locks at desired setting 1 Problem will stop after a few hours of operation 1 This is normal with most heaters If noise is ex cessive contact qualified service person 1 Check pilot light M...

Page 25: ...rrect all leaks see Checking Gas Con nections page 15 1 Operate burner until air is removed from line Have gas line checked by local natural or propane LP gas company 2 Observe minimum installa tion c...

Page 26: ...h com 118621 01B 26 OFF PILOT ON 20 10 4 21 24 19 2 3 8 16 18 14 6 9 13 7 1 15 25 22 23 11 17 9 5 12 Illustrated Parts Breakdown Models nZ100 nZ101 nZ102 nZ103 nZ104 nZ105 nZ106 nZ107 nZ116 nZ117 nZ11...

Page 27: ...age 28 1 13 099387 03 Pilot Tubing 1 099387 11 Pilot Tubing 14 104635 01 Apron 1 104635 03 Apron 1 15 099066 02 Mounting Bracket 1 16 099415 19 Gas Regulator 1 099415 18 Gas Regulator 1 17 111421 01 S...

Page 28: ...099056 25 Injector LP 1 2 7 105527 01 Pilot Mounting Bracket 1 Burner Assembly for Models NZ100 NZ101 NZ104 NZ105 NZ116 and NZ117 Burner Assembly for Models NZ102 NZ103 NZ106 NZ107 NZ118 and NZ119 ILL...

Page 29: ...imum 7 Average Heater Weight 29 lb 13 2 kg Average Shipping Weight 33 lb 15 kg NZ103 NZ107 NZ119 Propane LP Gas 26 000 Btu hr Piezo Ignition Pressure Regulator Setting 8 W C Inlet Gas Pressure in of w...

Page 30: ...ee page 31 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 Publi...

Page 31: ...s 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 nbm...

Page 32: ...ers of this product and or DESA Heating Products who will provide original factory replacement parts Failure to use original factory replacement parts voids this warranty The heater MUST be installed...

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