background image

 

2. Unconfined Space 
3. Confined Space 
The information on the followed pages will help you classify your space and provide adequate ventilation. 
 

Confined and Unconfined Space 
 

The National Fuel Gas Code, ANSI Z223 .1/NFPA 54 defines a confined space as a space whose volume 
is less than 50 cu. ft. per 1,000 BTU/hr (4.8 m

3

 per kw) of the aggregate input rating of all appliances 

installed in that space and an unconfined space as a space whose volume is not less than 50 cubic feet 
per 1,000 BTU/hr (4.8 m

3

 per kw) of the aggregate input rating of all appliances installed in that space. 

Rooms connecting directly with the space in which the appliances are installed, through openings not 
furnished with doors, are considered a part of the unconfined space. 
This heater shall not be installed in a confined space or unusually tight construction unless provisions are 
provided for adequate combustion and ventilation air. Adjoining rooms are connecting only if there are 
odorless passageways or ventilation grills between them. 

Unusually Tight Construction

 

 

The air that leaks around doors and windows may provide enough fresh air for combustion and ventilation. 
However, in buildings of unusually tight construction, you must provide additional fresh air. Unusually 
tight construction is defined as construction where: 
 
a) Walls and ceilings exposed to the outside atmosphere have a continuous water vapor retarder with a 
rating of one perm (6×10-11kg per pa-sec-m

2

) or less with openings gasket or sealed and   

 
b) Weather stripping has been added on openable windows and on doors and   
 
c) Caulking or sealants are applied to areas such as joints around window and door frames, between sole 
plates and floors, between wall ceiling joints, between wall panels, at penetrations for plumbing, electrical, 
and gas lines, and at other openings.   
 
If your home meets all of the three criteria above, you must provide additional fresh air. See “Ventilation 
Air From Outdoors”. If your home does not meet all of the three criteria above, proceed to “Determining 
Fresh-Air Flow For Heater Location”. 

 
6. DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION 

 

Using this worksheet 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 × Width × Height =      cu. ft. (volume of space) 
Example: Space size 20 ft. (length) × 16 ft. (width)×8 ft. (ceiling height) =2560 cu. ft. (volume of space) If 
additional ventilation to adjoining room is supplied with grills or openings, add the volume of these rooms 
to the total volume of the space. 
 
2. Divide the space volume by 50 cubic feet to determine the maximum BTU/hr the space can support.   
       (volume of space) ÷ 50 cu. ft. =(Maximum BTU/hr the space can support) 
 

Содержание WLT060-VF

Страница 1: ...ion on page 8 of this manual Warranty is void if not professionally installed INSTALLER Leave this manual with the appliance CONSUMER Retain this manual for future reference This appliance may be inst...

Страница 2: ...sing propane gas Press regulator setting 11 in w c 11 in w c 11 in w c inlet gas pressure inches of water for purpose of input adjustment Maximum 14 in w c 14 in w c 14 in w c Minimum 11 in w c 11 in...

Страница 3: ...on Electric Piezo Electric Piezo Electric Piezo Dimension inches H W D 15 7 7 5 25 6 18 1 7 5 28 7 30 7 9 1 29 5 Model WLT060 VF WLT100 VF WLT250 VF IR BTU available 6000 10000 25000 Gas type LP LP LP...

Страница 4: ...his heater or its controls can be dangerous WARNING Do not use any accessories not approved for use with this heater WARNING Carefully supervise young children when they are in the room with the heate...

Страница 5: ...from outside If heater keeps shutting off have it serviced 7 Do not run heater where flammable liquids or vapors are used or stored under dusty conditions 8 Before using furniture polish wax carpet c...

Страница 6: ...odels Only Models that start with WDFT If you have the dual fuel model your heater is equipped to operate on either Propane or Natural gas The heater is shipped from the factory ready for connecting t...

Страница 7: ...ication including ample combustion air and circulation air 2 If high humidity is experienced a dehumidifier may be used to help lower the water vapor content of the air 3 Do not use an unvented room h...

Страница 8: ...ere a Walls and ceilings exposed to the outside atmosphere have a continuous water vapor retarder with a rating of one perm 6 10 11kg per pa sec m2 or less with openings gasket or sealed and b Weather...

Страница 9: ...extra space provides an unconfined space a remove door to adjoining room or add ventilation grills between rooms See Ventilation Air From Inside Building on next page b Vent room directly to the outd...

Страница 10: ...ation grills or ducts Figure 3 Ventilation Air from Outdoors IMPORTANT Do not provide openings for inlet or outlet air into attic if attic has a thermostat controlled power vent Heated air entering th...

Страница 11: ...gas supply is right for your heater Otherwise call dealer where you bought the heater from for proper type heater Clearances to Combustibles Carefully follow the instructions below This heater is a fr...

Страница 12: ...ter requires an external regulator not supplied Install the external regulator between the heater and gas supply CAUTION Avoid damage to regulator Hold gas regulator with wrench when connecting into g...

Страница 13: ...white p e Figure 9 3 ver See Fi it on the ca ure the white on the cap the cap on nes installa for propane propane On erform gas upply gas leakage ce technicia t ne to natu on remove 9 1 turn knob he N...

Страница 14: ...S Reverse R on make su screw ough 7 to co upply S turn knob Regulator c ure to repla onvert back b clockwise ap as previ Figure 9 Figure 9 Figure 9 14 ce k to LP gas until the kn iously done 9 3 9 4 9...

Страница 15: ...l joints of gas supply piping system Apply mixture of liquid soap and water to gas joints If bubbles form there may be a leak 5 Correct all leaks at once 6 Reconnect heater and equipment shutoff valve...

Страница 16: ...push in or turn by hand don t try to repair it call a qualified service technician or gas supplier Forced or attempted repair may result in a fire or explosion 4 Do not use this appliance if any part...

Страница 17: ...0 1 Turn the thermostat Control button to full position turn the appliance gas valve ON OFF PILOT button to the Pilot position 2 Push down the appliance gas valve and keep it depressed for several sec...

Страница 18: ...s valve button down and turn to the 6 o clock position QUICKLY Heater will then operate normally Now you can turn the control button to the position as your desired To stop the heater shut off the ext...

Страница 19: ...ssed air in a can You can use a vacuum cleaner in the blow position If using compressed air in a can please follow the directions on the can If you don t follow directions Figure13 on the can you coul...

Страница 20: ...hutoff valve is closed 2 Control knob not fully pressed in while pressing igniter button 3 Air in gas lines when installed 4 ODS pilot is clogged 5 Gas regulator setting is not correct 6 Control knob...

Страница 21: ...ost heaters if noise is excessive contact qualified service technician 11 White powder residue forming within burner box or on adjacent walls or furniture 1 When heated the vapors from furniture polis...

Страница 22: ...ILLU USTRATE ED PARTS S Models s WDFT0 22 060 VF IR R...

Страница 23: ...egulator connecter 1 29 Knob 9 Igniter fixing nut 30 Thermostat seat 10 Igniter seat 31 Right insulation board 11 Igniter 32 Gas pipe nut 12 Rear insulation board 33 Gas valve seat 13 Left insulation...

Страница 24: ...ILLU USTRATE ED PARTS S Model WDFT10 24 00 VF IR...

Страница 25: ...8 Appliance regulator connecter 1 29 NG ODS 9 Shell 30 Right insulation board 10 Igniter fixing nut 31 Knob 11 Igniter seat 32 Gas pipe nut 12 Igniter 33 Thermostat seat 13 Rear insulation board 34 G...

Страница 26: ...ILLU USTRATE ED PARTS S Model WDFT25 26 50 VF IR...

Страница 27: ...nnecter 8 Rear cover 28 Gas pipe nut 9 Installation bracket 29 Igniter seat 10 Fixing racket 30 Igniter fixing nut 11 Burning chamber 31 Igniter 12 Nozzle holder bracket 32 Appliance regulator bracket...

Страница 28: ...ILLU USTRATE ED PARTS S Models s WNT06 28 60 VF IR W WLT060 VF IR...

Страница 29: ...egulator WNT060 VF IR 25 NG ODS WNT060 VF IR 7 LP Appliance regulator WLT060 VF IR 25 LP ODS WLT060 VF IR 8 Appliance regulator connecter 1 26 Knob 9 Igniter seat 27 Thermostat seat 10 Igniter fixing...

Страница 30: ...ILLU USTRATE ED PARTS S Models s WNT10 30 00 VF IR W WLT100 VF IR...

Страница 31: ...7 NG Appliance regulator WNT100 VF IR 25 Ceramic plaque 7 LP Appliance regulator WLT100 VF IR 26 NG ODS WNT100 VF IR 8 Appliance regulator connecter 1 26 LP ODS WLT100 VF IR 9 Shell 27 Right insulati...

Страница 32: ...ILLU USTRATE ED PARTS S Models s WNT25 32 50 VF IR W WLT250 VF IR...

Страница 33: ...et 7 Rear cover 23 Combination control valve 8 Installation bracket 24 Connecter 9 Fixing racket 25 Gas pipe nut 10 Burning chamber 26 Igniter seat 11 Nozzle holder bracket seat 27 Igniter fixing nut...

Страница 34: ...lease send in the form below to our office listed below or register online at www thermablaster com Reecon North America Attn Thermablaster 1090 Freeport Road 2nd Floor Pittsburgh PA 15238 Contact Inf...

Отзывы: