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11

119171-01E

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 

10.5" of water. If gas line pressure is higher, 

heater regulator damage could occur.

  CAUTION:  For  propane/LP 

gas,  never  connect  heater  di-

rectly to the propane/LP supply. 

This heater requires an external 

regulator  (not  supplied).  Install 

the external regulator between the 

heater and propane/LP supply.

For propane/LP gas, the installer must supply 

an external regulator. The external regulator 
will reduce incoming gas pressure. You must 
reduce incoming gas pressure to between 11" 
and 14" of water. If you do not reduce incom-

ing  gas  pressure,  heater  regulator  damage 

could occur. Install the external regulator with 
the  vent  pointing  down  as  shown  in  Figure 
14.  Pointing  the  vent  down  protects  it  from 

freezing rain or sleet.

INSTALLATION

Continued

Figure 14 - External 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.  Remove front panel (see 

Removing Front 

Panel of Heater,

 page 9).

.  Position heater with base feet in desired 

location. Mark holes for drilling. Remove 
heater with base.

3.  For carpeted floors, make a small cut with 

a sharp knife at marked locations prior to 

drilling. If mounting base to a wood floor, 
drill 1/8" diameter hole, 3/4" deep. (Do not 
use anchors in wood floors).

 

If  mounting  base  to  a  concrete  floor,  drill 
with 1/4" diameter concrete drill bit, 1

/

8

" into 

floor. Insert anchors completely into holes.

4.  Reposition  heater  with  base  feet  over 

holes.  Secure  base  to  floor  with  wood 

screws. See Figure 1.

MOUNTING HEATER TO FLOOR 
WITH OPTIONAL FLOOR KIT

Mounting Base Feet to Heater

Note:

 A  90°  elbow  is  required  for  mounting 

this unit and must be installed BEFORE base 
feet to provide proper clearance (see Figure 

15, page 12).

1.  Lay heater cabinet on its back on a table with 

the heater bottom overhanging table edge.

.  Apply pipe joint sealant lightly to male NPT 

threads of elbow. Hold pressure regulator 
with  a  wrench  when  connecting  elbow. 
Do  not  overtighten  elbow  to  regulator. 
Regulator body could be damaged.

.  Align holes in base foot with mounting holes 

on bottom of cabinet (see Figure 1).

4.  Secure  base  foot  to  heater  using  sheet 

metal screws.

5.  Repeat for other side.

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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