Desa VN30TA, VN18TA, VN18A, VP26TA, VP26A User Manual

...
0 (0)
UNVENTED (VENT-FREE) INFRARED GAS HEATER
®
SAFETY INFORMATION AND INSTALLATION MANUAL
Model VN30A Shown
VN18A, VN18TA, VP16A, VP16TA, VP26A, VP26TA
VN30A, VN30TA, VP16ITA, VP22ITA
WARNING: If the information in this manual is not followed 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.
• 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.
Save this manual for future reference.
For more information, visit www.desatech.com
WARNING: Improper installation, adjustment, altera­tion, service or maintenance can cause injury or prop­erty damage. Refer to this manual for correct installation and operational procedures. For assistance or addi­tional information consult a qualified installer, service agency or the gas supplier.
WARNING: This is an unvented gas-fired heater. It uses air (oxygen) from the room in which it is installed. Provi­sions for adequate combustion and ventilation air must be provided. Refer to Air for Combustion and Ventilation section on page 5 of this manual.
This appliance may be installed in an aftermarket,* per­manently located, manufactured (mobile) home, where not prohibited by local codes.
This appliance is only for use with the type of gas indi­cated on the rating plate. This appliance is not convert­ible for use with other gases.
* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer
State of Massachusetts: The installation must be made by a licensed plumber or gas fitter in the Commonwealth of Massachusetts.
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 are prohibited for bedroom and bathroom installation in the Common wealth of Massachusetts.
-
TABLE OF CONTENTS
Safety Information ............................................... 3
Local Codes ........................................................ 4
Product Identification ...........................................
Unpacking ........................................................... 4
Product Features ................................................. 4
Air For Combustion and Ventilation ..................... 5
Installation ........................................................... 7
Operating Heater ............................................... 14
Inspecting Heater .............................................. 18
Cleaning and Maintenance ................................ 19
2
www.desatech.com
Troubleshooting ................................................. 20
Specifications ....................................................
4
Illustrated Parts Breakdown and Parts List ....... 24
Replacement Parts ............................................ 32
Service Publications .......................................... 32
Service Hints ..................................................... 32
Technical Service ..............................................
Accessories ....................................................... 33
Parts Central ..................................................... 33
Warranty Information ...........................Back Cover
23
32
113052-01D

SAFETY INFORMATION

WARNING: This product con­tains and/or generates chemicals known to the State of California to cause cancer or birth defects or other reproductive harm.
IMPORTANT: Read this owner’s manual carefully and completely be fore tr ying to assemb le, operate or service this heater. Improper use of this heater can cause serious injury or death from burns, fire, explosion, electrical shock and carbon monoxide poisoning.
DANGER: Carbon monoxide poisoning may lead to death!
Carbon Monoxide Poisoning: Early signs of carbon
monoxide poisoning resemble the flu, with head aches, dizziness or nausea. If you have these signs, the heater may not be working properly. Get fresh air at once! Have heater serviced. Some people are more affected by carbon monoxide than others. These include pregnant women, people with heart or lung disease or anemia, those under the influ ence of alcohol and those at high altitudes.
Natural and Propane/LP Gas: Natural and Propane/
LP
gases are odorless. An odor-making agent is added to these gases. The odor helps you detect a gas leak. However, the odor added to the gas can fade. Gas may be present even though no odor exists.
Make certain you read and understand all warn­ings. Keep this manual for reference. It is your guide to safe and proper operation of this heater.
WARNING: Any change to this heater or its controls can be dangerous.
WARNING: Do not use a blow­er insert, heat exchanger insert or other accessory not approved for use with this heater.
Due to high temperatures, the appliance should be located out of traffic and away from furniture and draperies.
Do not place clothing or other flammable material on or near the appliance. Never place any objects on the heater.
Surface of heater becomes very hot when running heater. Keep children and adults away from hot surface to avoid burns or clothing ignition. Heater will remain hot for a time after shut down. Allow surface to cool before touching.
Carefully supervise young chil­dren when they are in the same room with heater.
-
Make sure grill guard is in place before running heater.
Keep the appliance area clear
-
and free from combustible ma terials, gasoline and other flam­mable vapors and liquids.
1. This appliance is only for use with the type of gas indicated on the rating plate. This ap pliance is not convertible for use with other gases.
2. Do not place propane/LP supply tank(s) in side any structure. Locate propane/LP supply tank(s) outdoors.
3. This heater shall not be installed in a bedroom or bathroom.
4. If you smell gas
• Shut off gas supply
• 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 neigh borʼs phone. Fol low the gas supplierʼs instructions
• If you cannot reach your gas supplier, call
the fire department
-
-
-
-
www.desatech.com
3113052-01D
SAFETY INFORMATION
Continued
5.
Always run heater with plaque control knob at the 1, 2, 3 or 4 locked positions. Never set control knob between locked positions. Poor combustion and higher levels of carbon monoxide may result.
6. This heater needs fresh, outside air ventilation to run properly. This heater has an Oxygen Depletion Sensing (ODS) safety shutoff system. The ODS shuts down the heater if not enough fresh air is available. See Air for Combustion and Ventilation, page 5.
7. Keep all air openings in front and bottom of heater clear and free of debris. This will insure enough air for proper combustion.
8. If heater shuts off, do not relight until you provide fresh, outside air. If heater keeps shutting off, have it serviced.
9. Do not run heater
• where flammable liquids or vapors are
used or stored
• under dusty conditions
10. Do not use heater if any part has been under water. Immediately call a qualified service technician to inspect the room heater and to replace any part of the control system and any gas control which has been under water.
11. Turn off and unplug heater and let cool before servicing. Only a qualified service person should service and repair heater.
12. Operating heater above elevations of 4,500 feet could cause pilot outage.
13. To prevent performance problems, do not use pro­pane/LP fuel tank of less than 100 lbs. capacity.
14. Before using furniture polish, wax, carpet cleaner or similar products, turn heater off. If heated, the vapors from these products may create a white powder residue within burner box or on adjacent walls or furniture.
15.
Provide adequ ate clearance s around air openings.

LOCAL CODES

Install and use heater with care. Follow all local codes. In the absence of local codes, use the lat est edition of The National Fuel Gas Code, ANSI Z223.1/NFPA 54*.
*Available from:
American National Standards Institute, Inc.
National Fire Protection Association, Inc.
4
1430 Broadway
New York, NY 10018
Batterymarch Park
Quincy, MA 02269
www.desatech.com
PRODUCT
IDENTIFICATION
Ignitor Button
Heater Cabinet
Figure 1 - Vent-Free Gas Heater
Control Knob
Plaque
Front Panel

UNPACKING

1. Remove heater from carton.
2. Remove all protective packaging applied to heater for shipment.
3. Check heater for any shipping damage. If heater is damaged, promptly return to where you bought heater.

PRODUCT FEATURES

SAFETY DEVICE
This heater has a pilot with an Oxygen Deple­tion Sensing (ODS) safety shutoff system. The ODS/pilot is a required feature for vent-free room heaters. The ODS/pilot shuts off the heater if there is not enough fresh air.
IGNITION SYSTEM
This heater has an electronic ignitor to light heater fuel supply.
THERMOSTATIC HEAT CONTROL
(Thermostat Models Only)
Thermostat models have a thermostat sensing bulb and a control valve. This results in the great­est heater comfort. This can also result in lower
-
gas bills.
113052-01D
Grill Guard
AIR FOR COMBUSTION
AND VENTILATION
WARNING: This heater shall not be installed in a confined space or unusually tight construction unless provisions are provided for adequate combustion and ventilation air. Read the following instructions to insure proper fresh air for this and other fuel-burning appliances in your home.
Todayʼs homes are built more energy efficient than ever. New materials, increased insulation and new construction methods help reduce heat loss in homes. Home owners weather strip and caulk around windows and doors to keep the cold air out and the warm air in. During heating months, home owners want their homes as airtight as possible.
While it is good to make your home energy effi cient, your home needs to breathe. Fresh air must enter your home. All fuel-burning appliances need fresh air for proper combustion and ventilation.
Exhaust fans, fireplaces, clothes dryers and fuel burning appliances draw air from the house to operate. You must provide adequate fresh air for these appliances. This will insure proper venting of vented fuel-burning appliances.
PROVIDING ADEQUATE VENTILATION
The following are excerpts from National Fuel Gas Code, ANSI Z223.1/NFPA 54, Section 5.3, Air for Combustion and Ventilation.
All spaces in homes fall into one of the three fol lowing ventilation classifications:
1. Unusually Tight Construction
2. Unconfined Space
3. Confined Space The information on pages 5 through 7 will help
you classify your space and provide adequate ventilation.
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 out
side atmosphere have a continuous water vapor retarder with a rating of one perm (6 x 10 less with openings gasketed or sealed and
b. weather stripping has been added on
openable windows and 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 these three cri teria, you must provide additional fresh air. See Ventilation Air From Outdoors, page 7.
If your home does not meet all of the three
-
criteria above, proceed to Determining Fresh-Air Flow For Heater Location.
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 cubic feet per 1,000 Btu per hour (4.8 m 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 per hour
3
(4.8 m
per kw) of the aggregate input rating of all appliances installed in that space. Rooms com municating directly with the space in which the appliances are installed*, through openings not
-
furnished with doors, are considered a part of the unconfined space.
* Adjoining rooms are communicating only if there are doorless passageways or ventilation grills between them.
-11
kg per pa-sec-m2) or
3
per kw) of the aggregate input
DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION
Determining if You Have a Confined or Unconfined Space
Use this work sheet 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.
-
-
-
www.desatech.com
5113052-01D
Or Remove Door into Adjoining
Room,
Option 3
Ventilation Grills
Into Adjoining Room,
Option
2
12"
12"
Ventilation
Grills
into Adjoining
Room,
Option 1
AIR FOR COMBUSTION
AND VENTILATION
Continued
1. Determine the volume of the space (length x width x height).
Length x Width x Height =__________cu. ft.
(volume of space)
Example: Space size 20 ft. (length) x 16 ft.
(width) x 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. Multiply the space volume by 20 to determine the maximum Btu/Hr the space can support.
__________ (volume of space) x 20 = (Maxi-
mum Btu/Hr the space can support)
Example: 2560 cu. ft. (volume of space) x 20 =
51,200 (maximum Btu/Hr the space can support)
3. Add the Btu/Hr of all fuel burning appliances in the space.
Vent-free heater ___________ Gas water heater* ___________ Gas furnace ___________ Vented gas heater ___________ Gas fireplace logs ___________ Other gas appliances* + ___________ Total = ___________ * Do not include direct-vent gas appliances. Di
rect-vent draws combustion air from the outdoors and vents to the outdoors.
Example:
Gas water heater ___________ Vent-free heater + __________ Total = __________
40,000 20,000 60,000
4. Compare the maximum Btu/Hr the space can support with the actual amount of Btu/Hr used.
_________ _________
Btu/Hr (maximum the space can support) Btu/Hr (actual amount of Btu/Hr used)
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 example is a confined space because the actual Btu/Hr used is more than the maxi mum Btu/Hr the space can support. You must provide additional fresh air. Your options are as follows:
A. Rework worksheet, adding the space of an adjoin
ing room. If the extra space provides an unconfined space, remove door to adjoining room or add ventilation grills between rooms. See Ventilation
Air From Inside Building.
B. Vent room directly to the outdoors. See Ventila
tion Air From Outdoors, page 7.
6
Btu/Hr Btu/Hr Btu/Hr Btu/Hr Btu/Hr Btu/Hr Btu/Hr
Btu/Hr Btu/Hr Btu/Hr
www.desatech.com
C. Install a lower Btu/Hr heater, if lower Btu/Hr size
makes room unconfined.
If the actual Btu/Hr used is less than the maximum Btu/Hr the space can support,
the space is an un­confined space. You will need no additional fresh air ventilation.
WARNING: If the area in which the heater may be oper­ated is smaller than that defined as an unconfined space or if the building is of unusually tight construction, provide adequate combustion and ventilation air by one of the methods described in the National Fuel Gas Code, ANSI Z223.1/NFPA 54 Section 5.3 or applicable local codes.
VENTILATION AIR
Ventilation Air From Inside Building
This fresh air would come from an adjoining un confined space. When ventilating to an adjoining unconfined space, you must provide two perma­nent openings: one within 12" of the ceiling and one within 12" of the floor on the wall connecting the two spaces (see options 1 and 2, Figure 2). You can also remove door into adjoining room (see
-
option 3, Figure 2). Follow the National Fuel Gas
Code, ANSI Z223.1/NFPA 54, Section 5.3, Air for Combustion and Ventilation for required size of
ventilation grills or ducts.
-
-
Figure 2 - Ventilation Air from Inside
-
Building
113052-01D
-
AIR FOR COMBUSTION
Outlet Air
Ve
ntilated
Attic
Outlet
A
ir
Inlet Air
Inlet Air
Ve
ntilated
Crawl Space
To Crawl Space
To Attic
Minimum From Sides Of Heater
36"
2"
FLOOR
CEILING
Minimum
Minimum To Top Surface Of Carpeting, Tile Or Other Combustible Material
Left Side
Right Side
10"
AND VENTILATION
Continued
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation grills or ducts. You must provide two permanent openings: one within 12" of the ceiling and one within 12" of the floor. Connect these items directly to the outdoors or spaces open to the outdoors. These spaces include attics and crawl spaces. Follow the
National Fuel Gas Code, ANSI Z223.1/NFPA 54, Section 5.3, Air for Combustion and Ventilation for
required size of ventilation grills or ducts. IMPORTANT: Do not provide openings for inlet
or outlet air into attic if attic has a thermostat­controlled power vent. Heated air entering the attic will activate the power vent.
Figure 3 - Ventilation Air from Outdoors

INSTALLATION

NOTICE: This heater is intended for use as supplemental heat. Use this heater along with your primary heating system. Do not install this heater as your pri­mary heat source. If you have a central heating system, you may run system’s circulating blower while using heater. This will help circulate the heat throughout the house. In the event of a power outage, you can use this heater as your primary heat source.
WARNING: This appliance is equipped for (natural or pro­pane/LP) gas. Field conversion is not permitted.
INSTALLATION ITEMS
Before installing heater, make sure you have the items listed below.
• for propane/LP gas, external regulator (supplied by installer)
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• ground joint union
• sediment trap
• tee joint
• pipe wrench
• for natural gas, test gauge connection*
* A CSA design-certified equipment shutoff valve with 1/8" NPT tap is an acceptable alternative to test gauge connection. The optional CSA design­certified equipment shutoff valve can be purchased from your dealer. See
Accessories, page 33.
LOCATING HEATER
WARNING: Maintain the minimum clearances shown in Figure 4. If you can, provide greater clearances from floor, ceiling and joining wall.
You can locate heater on the floor, away from a wall. A wall mounting bracket and floor base stand are included with this heater. Determine which method is best for your application.
WARNING: A qualified ser­vice person must install 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 heater for proper type heater.
Figure 4 - Mounting Clearances As
Viewed From Front of Heater
www.desatech.com
7113052-01D
INSTALLATION
Continued
WARNING: Never install the heater
• in a bedroom or bathroom
• in a recreational vehicle
• where curtains, furniture,
clothing or other flammable objects are less than 36 inches from the front, top or sides of the heater
• as a fireplace insert
• in high traffic areas
• in windy or drafty areas
CAUTION: If you install the heater in a home garage
• heater pilot and burner must
be at least 18 inches above floor
• locate heater where moving
vehicle will not hit it
CAUTION: This heater cre­ates warm air currents. These currents move heat to wall sur faces next to heater. Installing heater next to vinyl or cloth wall coverings or operating heater where impurities (such as, but not limited to, tobacco smoke, aromatic candles, cleaning flu­ids, oil or kerosene lamps, etc.) in the air exist, may discolor walls or cause odors.
IMPORTANT: Vent-free heaters add moisture to the air. Although this is beneficial, installing heater in rooms without enough ventilation air may cause mildew to form from too much moisture. See Air for Combustion and Ventilation, page
5. If high humidity is experienced, a dehumidi­fier may be used to help lower the water vapor content in the air.
For convenience and efficiency, install heater
• where there is easy access for operation, inspec tion and service
• in coldest part of room
-
An optional fan kit is available from your dealer. See Accessories, page 33. If planning to use fan, locate heater near an electrical outlet.
THERMOSTAT SENSING BULB
(Thermostat Models Only)
The thermostat sensing bulb has been placed below the heater.
1. Place clamp on thermostat sensing bulb as shown in Figure 5. Clamp is provided in hardware package.
2. Snap clamp into upper mounting hole as shown in Figure 5. Mounting hole is located on lower left edge on back of heater. Make sure the thermostat sensing bulb is pointing up.
Thermostat Sensing Bulb
Clamp
Figure 5 - Attaching Thermostat Sensing
Bulb
INSTALLING HEATER TO WALL
Mounting Bracket
Locate mounting bracket in heater carton. Remove mounting bracket from heater carton.
Figure 6 - Mounting Bracket
Removing Front Panel Of Heater
1. Remove the four painted screws, two on each side of front panel.
2. Pull bottom of front panel forward, then out.
3. Remove any remaining packaging materials.
Front Panel
-
Figure 7 - Removing Front Panel Of
Heater
Screw
8
www.desatech.com
113052-01D
INSTALLATION
14"
12"
Min.
Ad joi ni ng Wa ll
Only Insert Mounting Screws Through Last
Hole On Each End
Floor
25 3/4"
Optional
19 3/4"
Min.
16"
Min.
14"
12"
Min.
Ad joi ni ng Wa ll
14"
Ad joi ni ng Wa ll
Only Insert Mounting
Screws Through Last
Hole On Each End
Only Insert Mounting Screws Through Last
Hole On Each End
Floor
Floor
25 3/4"
Optional
19 3/4"
Min.
25 3/4"
Optional
19 3/4"
Min.
Continued
Methods For Attaching Mounting Bracket To Wall
Only use last hole on each end of mounting bracket to attach bracket to wall. These two holes are 14 inches apart from their centers. Attach mounting bracket to wall in one of two ways:
1. Attaching to wall stud
2. Attaching to wall anchor
Attaching to Wall Stud: This method provides the
strongest hold. Insert mounting screws through mounting bracket and into wall studs.
Attaching to Wall Anchor: This method allows 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 hold for the mounting bracket.
Marking Screw Locations
1. Tape mounting bracket to wall where heater will be located. Make sure mounting bracket is level.
WARNING: Maintain mini-
mum clearances shown in Figure
8. If you can, provide greater clearances from floor and join­ing wall.
2. Mark screw locations on wall (see Figure 8).
Note: Only mark last hole on each end of
mounting bracket. Insert mounting screws through these holes only.
3. Remove tape and mounting bracket from wall.
Figure 8 - Mounting Bracket Clearances
Attaching Mounting Bracket To Wall
Note:
Wall anchors, mounting screws and spacers are in hardware package. The hardware package is provided with heater.
Attaching To 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 holes drilled in wall.
3. Insert mounting screws through bracket and
into wall studs.
4. Tighten screws until mounting bracket is
firmly fastened to wall studs.
Attaching To Wall Anchor Method
For attaching mounting bracket to hollow walls (wall areas between studs) or solid walls (concrete or masonry)
1. Drill holes at marked locations using 5/16"
drill bit. For solid walls (concrete or masonry), drill at least 1" deep.
www.desatech.com
4 and 5 Plaque Heaters
3 Plaque Heater
9113052-01D
INSTALLATION
Side View
Front View
Continued
2. Fold wall anchor as shown in Figure 9.
3. Insert wall anchor (wings first) into hole. Tap anchor flush to wall.
4. For thin walls (1/2" or less), insert red key into wall anchor. Push red key to “pop” open anchor wings.
IMPORTANT: Do not hammer key! For thick walls (over 1/2" thick) or solid walls,
do not pop open wings.
5. Place mounting bracket onto wall. Line up last hole on each end of bracket with wall anchors.
6. Insert mounting screws through bracket and into wall anchors.
7. Tighten screws until mounting bracket is firmly fastened to wall.
Figure 9 - Folding Anchor
Installing Bottom Mounting Screws
1. Locate two bottom mounting holes. These holes are near bottom on back panel of heater (see Figure 12).
2. Mark screw locations on wall.
3. Remove heater from mounting bracket.
4. If installing bottom mounting screws into hollow or solid wall, install wall anchors. Follow steps 1 through 4 under Attaching To
Wall Anchor Method
, page 9.
If installing bottom mounting screw into wall
stud, drill holes at marked locations using 9/64" drill bit.
5. Replace heater onto mounting bracket.
6. Place spacers between bottom mounting holes and wall anchor or drilled hole.
7. Hold spacer in place with one hand. With other hand, insert mounting screw through bottom mounting hole and spacer. Place tip of screw in opening of wall anchor or drilled hole.
8. Tighten both screws until heater is firmly secured to wall. Do not over tighten.
Note: Do not replace front panel at this time.
Replace front panel after making gas connec­tions and checking for leaks (see pages 12 and 13).
Figure 10 - Popping Open Anchor Wings
For Thin Walls
Placing Heater On Mounting Bracket
1. Locate two horizontal slots on back panel of heater.
2. Place heater onto mounting bracket. Slide horizontal slots onto stand-out tabs on mount ing bracket.
Horizontal Slots
Mounting Bracket (attached
Stand-Out Tab
to wall)
Figure 11 - Mounting Heater Onto
Mounting Bracket
10
www.desatech.com
Heater
Wall
-
Spacer
Figure 12 - Installing Bottom Mounting
Screws
113052-01D
INSTALLATION
Continued
MOUNTING HEATER TO FLOOR
Mounting Base Feet to Heater
1. Lay heater cabinet on its back on a table with the heater bottom overhanging the table edge.
2. Align holes in base foot with mounting holes on bottom of cabinet (see Figure 13).
3. Secure base foot to heater using sheet metal screws.
4. Repeat for other side.
Mounting Base Feet to Floor (Where required by local code)
1. Remove front cover (see Removing Front Panel of Heater,
2. Position heater with base feet in desired loca tion. 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 drill ing. If mounting base to a wood floor, drill 1/8 inch diameter hole, 3/4 inch deep. (Do not use anchors in wood floors).
If mounting base to a concrete floor, drill
with 1/4 inch diameter concrete drill bit, 1 inches into floor. Insert anchors completely into holes.
4. Reposition heater with base feet over holes. Secure base to floor with wood screws. See Figure 13.
Sheet Metal Screw
page 8).
3
Wood Screw
Base Foot
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 (non­utility) gas wells. This gas is com monly 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 inches of water. If gas line pressure is higher, heater regula
-
tor damage could occur.
CAUTION: For propane/LP gas, never connect heater di­rectly to the propane/LP supply.
/8
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 inches of water. If you do not reduce incoming gas pres sure, 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.
Propane/LP Supply Tank
External Regulator
-
-
-
Figure 13 - Installing Base Feet
113052-01D
Figure 14 - External Regulator With Vent
www.desatech.com
Vent Pointing Down
Pointing Down
11
Loading...
+ 25 hidden pages