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200198-01A

18

OPERATION

THERMOSTAT CONTROL OPERATION

The thermostatic control used on this model differs from standard thermostats. You set standard 

thermostats to a specific temperature such as 72 degrees.  The thermostat used on this heater 

senses the room temperature. At times the room may exceed the set temperature. If so, the 

burner will shut off. The burner will cycle back on when room temperature drops below the set 

temperature. The control knob can be set to any comfort level between Low (1) and HIGH (5).

Shutting Off Heater

Turn  control  knob  clockwise 

  to  the 

OFF position.

Shutting Off Burner Only (pilot 

stays lit )

Turn  control  knob  clockwise

 

 

to  the 

PILOT position.

1.  Remove  2  screws  securing  screen  to 

stove. Carefully lift and pull screen forward 

to remove.

2.  Follow steps 1 through 5 under 

Lighting 

Instructions

, page 17.

3.  With control knob in PILOT position, strike 

match, and hold near pilot. Press in control 

knob; pilot should light.

4.  Keep control knob pressed in for 30 sec-

onds after lighting pilot. After 30 seconds, 

release control knob. 

5.  Make sure the heater screen is in place 

before operating heater.

TO TURN OFF GAS TO APPLIANCE

MANUAL LIGHTING PROCEDURE

Note: If pilot does not stay lit, refer to 

Troubleshooting, page 22. Also contact a 

qualified service technician or gas supplier 

for repairs. Until repairs are made, light 

pilot with match. To light pilot with match, 

see Manual Lighting Procedure.

7.  Keep control knob pressed in for 30 sec-

onds after lighting pilot. After 30 seconds, 

release control knob.

 

Note: If pilot goes out, repeat steps 3 

through 7. This heater has a safety inter-

lock system. Wait one (1) minute before 

lighting pilot again.

8.  Turn control knob counterclockwise 

 

to  the  desired  heating  level. The  main 

burner  should  light.  Set  control  knob  to 

any heat level between HI (5) and LO (1).

 

Note: Please wait one minute after shut-

ting off fireplace to allow the control valve 

to reset before starting again.

 CAUTION: Do not try to ad-

just heating levels by using the 

equipment shutoff valve.

 WARNING: If input gas 

type is NG, make sure NG pilot 

burner ignites. If input gas type 

is LP, make sure LP pilot burner 

ignites.

Figure 18 - Pilot

Pilot Air 

Inlet Hole

Natural Gas 

Burner

Propane/LP 

Gas Burner

Thermocouple

Pilot Air Inlet Hole

Ignitor 

Electrode

Summary of Contents for QNSD250T

Page 1: ...ot store or use gasoline or other flammable va pors 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...

Page 2: ...which it is installed Provisions for ad equatecombustionandventilationairmustbeprovided Refer to Air For Combustion and Ventilation section on page 7 of this manual WARNING Improper installation adjus...

Page 3: ...nce of alcohol and those at high altitudes NATURALAND PROPANE LP GAS Natural and Propane LP gas are odorless An odor making agent is added to the gas The odor helps you detect a gas leak However the o...

Page 4: ...prevent performance problems do not use propane LP fuel tank of less than 100 lbs capacity 12 Do not use this heater as a wood burning heater Use only the logs provided with the heater 13 Solid fuels...

Page 5: ...heater can easily be changed to Natural gas by having your quali fied installer follow the instructions on page 10 and the markings on the heater LOCAL CODES Install and use heater with care Follow al...

Page 6: ...air 2 If high humidity is experienced a dehu midifier may be used to help lower the water vapor content of the air 3 Do not use an unvented room heater as the primary heat source UNPACKING 1 Remove t...

Page 7: ...appli ances WARNING This heater shall not be installed in a room or space unless the required vol ume of indoor combustion air is provided by the method de scribed in the National Fuel Gas Code ANSI...

Page 8: ...to vinyl or cloth wall coverings or operating heater where impurities such as to baccosmoke aromaticcandles cleaning fluids oil or kerosene lamps etc in the air exist may cause walls to discolor Vent...

Page 9: ...ning wall Measure from outermost point of heater This heater is designed to sit directly on the floor or on a mantel base IMPORTANT You must maintain minimum wall and ceiling clearances during install...

Page 10: ...un m ximo de 14 W C Nunca conecte este producto directamente al tanque de suministro FOR NATURAL GAS SUPPLY PARA LA FUENTE DE GAS DEL NATURAL NOTICE An additional gas regulator will be necessary if t...

Page 11: ...the connection fitting While pushing in rotate the fitting clockwise until the threads engage the regulator After the fitting has been hand tightened into the regulator use a wrench to complete tight...

Page 12: ...n must include an 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 10 page 13 IMPORTANT Install...

Page 13: ...from freezing rain or sleet For both gas types install sediment trap in supply line as shown in Figure 10 Place sediment trap where it is within reach for cleaning Place sediment trap where trapped m...

Page 14: ...or natural gas or using compressed air 4 Check all joints of gas supply piping sys tem Apply noncorrosive leak detection fluid to all joints If bubbles form there may be a leak 5 Correct all leaks at...

Page 15: ...t heater see Lighting Instructions on page 17 Check all other internal joints for leaks 7 Turn off heater see To Turn Off Gas Ap pliance page 18 AAA Battery Positive UP BATTERY INSTRUCTIONS CAUTION Do...

Page 16: ...side of log 1 with one end resting on log 3 IMPORTANT Make sure logs do not cover any burner ports It is very important to install the logs exactly as instructed Do not modify logs Use only logs suppl...

Page 17: ...th the screen in place Make sure screen is installed before running heater NOTICE Duringinitialoperationof new heater burning logs will give offapaper burningsmell Orange flame will also be present Op...

Page 18: ...nds release control knob 5 Make sure the heater screen is in place before operating heater TO TURN OFF GAS TO APPLIANCE MANUAL LIGHTING PROCEDURE Note If pilot does not stay lit refer to Troubleshooti...

Page 19: ...w in structions at bottom of this page Notice Do not mistake orange flames with yellow tipping Dirt or other fine particles enter the heater and burn causing brief patches of orange flame Approx 3 6 A...

Page 20: ...r Inlet Holes BURNER INJECTOR HOLDER AND PILOT AIR INLET HOLE We recommend that you clean the unit ev ery 2 500 hours of operation or every three months We also recommend that you keep the burner tube...

Page 21: ...may blow through a drinking straw if compressed air is not available CARE AND MAINTENANCE ODS PILOT CABINET Air Passageways Use a vacuum cleaner or pressurized air to clean Exterior Use a soft cloth...

Page 22: ...nlet pressure exceeds 9 WC This is to prevent the operation of the unit on the wrong gas propane LP If your natural gas supply exceeds 9 WC the unit will not operate Either contact your gas supplier t...

Page 23: ...ntrol knob while pressing ignitor button 3 Continue holding down con trol knob Repeat igniting op eration until air is removed 4 Clean ODS pilot see Care and Maintenance page 20 or replace ODS pilot a...

Page 24: ...Care and Maintenance page 20 2 Replace gas regulator 3 Contact local gas supplier Gas odor during com bustion 1 Foreign matter between control valve and burner 2 Gas leak See Warning Statement at top...

Page 25: ...nd Maintenance page 20 Gas odor exists even when control knob is in OFF position 1 Gas leak See Warning Statement at top of page 22 2 Control valve is defective 1 Locate and correct all leaks see Chec...

Page 26: ...www usaprocom com 200198 01A 26 PARTS MODEL QNSD250T 7 8 6 1 2 3 4 12 13 11 15 14 5 9 10...

Page 27: ...ery 1 160960 01 Metal Regulator Cap 1 REPLACEMENT PARTS Note Use only original replacement parts This will protect your warranty coverage for parts replaced under warranty PARTS UNDER WARRANTY Contact...

Page 28: ...g condition Warranty part s MUST be obtained through ProCom Heating Inc who will provide original factory replacement parts Failure to use original factory replacement parts voids this warranty IMPORT...

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