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114924-01B

4

You must operate this appliance 

with a fireplace screen in place. 

Make  sure  fireplace  screen  is 

closed before running appliance.

Keep  the  appliance  area  clear 

and free from combustible ma-

terials, gasoline and other flam-

mable vapors and liquids.

Children  and  adults  should  be 

alerted to the hazard of high tem-

perature and should stay away to 

avoid burns or clothing ignition.

1.  This appliance, as supplied, is only for use 

with the type of gas indicated on the rating 

plate. This appliance is not convertible for 

use with other gases.

2.  Do not place propane/LP supply tank(s) in-

side the structure. Locate propane/LP supply 

tank(s) outdoors (propane/LP units only).

3.  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 

neighborʼs phone. Follow the gas supplierʼs 

instructions

• if you cannot reach your gas supplier, call 

the fire department

4.  Never install the log set

• in a recreational vehicle

• where curtains, furniture, clothing or other 

flammable objects are less than 42 inches 

from the front, top or sides of the log set.

• in high traffic areas

• in windy or drafty areas 

5.  Before installing in a solid fuel burning fireplace, 

the chimney flue and firebox must be cleaned of 

soot, creosote, ashes and loose paint by a qualified 

chimney cleaner. Creosote will ignite if highly 

heated. Inspect chimney flue for damage. If dam-

aged, repair flue before operating appliance.

6.  This logset is designed to be smokeless. If logs 

ever appear to smoke, turn off appliance and 

call a qualified service person. 

Note:

 During 

initial operation, slight smoking could occur 

due to log curing and the burning of manu-

facturing residues. You may wish to add more 

ventilation by opening a window.

SAFETY INFORMATION

Continued

7.  You must operate this log set with fireplace screen 

in place and fully closed. Unless provided by 

other means, screens shall have openings for 

introduction of combustion air.

8.  If fireplace has glass doors, never operate with 

glass doors closed, If you operate heater with  

doors closed, heat buildup inside fireplace will 

cause glass to burst. Also if fireplace opening 

has vents at the bottom, you must open the 

vents before operating heater.

9.  To reduce the creation of soot, follow the instruc-

tions in 

Cleaning and Maintenance

, page 12.

10.  Do not use a blower insert, heat exchanger 

insert or other accessory not approved for use 

with this log set.

11.  The installation and provisions for combustion 

and ventilation air must conform with the 

Na-

tional Fuel Gas Codes, ANSI Z233.1/NFPA 54, 

Section 5.3, Air for combustion and Ventilation.

12.  Do not run heater

• where flammable liquids or vapors are used 

or stored

• under dusty conditions

13.  Do not burn solid fuel in the fireplace after 

installing the log set. Do not use this log set 

to cook food or burn paper or other objects.

14.  Log set becomes very hot when in use. Keep 

children and adults away from hot surface to 

avoid burns or clothing ignition. Log set will 

remain hot for a time after shutdown. Allow 

surface to cool before touching.

15.  Carefully supervise young children when they 

are in the room with the log set.

16.  Do not use heater if any part has been exposed 

to or 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.

17.  Turn log set off and let cool before servicing, 

installing or repairing. Only a qualified service 

person should install, service or repair log set.

18.  Provide  adequate  clearances  around  air 

openings.

LOCAL CODES

Install and use log set with care. Follow all local codes. 

In the absence of local codes, use the latest edition of 

the 

National Fuel Gas Code ANSI Z223.1/NFPA 54*

*Available from:

American National Standards Institute, Inc.

1430 Broadway

 New York, NY 10018

National Fire Protection Association, Inc.

Battery march park

Quincy, MA 02269

Summary of Contents for Firewerks MVO18VNA

Page 1: ...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 Immediatelycallyourgassupplierfromaneighbor...

Page 2: ...s ANSI Z233 1 NFPA 54 Section 5 3 Air for Combustion and Ventilation This appliance may be installed in an aftermarket per manently located manufactured mobile home where not prohibited by local codes...

Page 3: ...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 log set WARNING Do not place log scraps or...

Page 4: ...en in place and fully closed Unless provided by other means screens shall have openings for introduction of combustion air 8 If replace has glass doors never operate with glass doors closed If you ope...

Page 5: ...ot to be used with vented decorative appliances INSTALLATION WARNING A quali ed ser vice person must install heater Follow all local codes WARNING Before installing in a solid fuel burning replace the...

Page 6: ...re place constructed of noncombustible material and connected to a working ue The replace chimney must have a permanent vent opening to outside with minimum openings shown in Figure 3 Figure 2 Technic...

Page 7: ...read inlet connection to the control valve CAUTION Never connect propane LP unit directly to the propane LP supply This unit re quiresanexternalregulator not supplied Install the external regulator be...

Page 8: ...is not installed or is installed wrong heater may not run properly CAUTION Avoid damage to gas control Hold gas control with wrench when connecting it to gas piping and or ttings Figure 7 Gas Connect...

Page 9: ...oints Propane LP Gas Only Figure 10 Checking Gas Joints Natural Gas Only Equipment Shutoff Valve Gas Meter Control Valve Location Pressure Testing Appliance Gas Connections 1 Open equipment shutoff va...

Page 10: ...been under water LIGHTING INSTRUCTIONS 1 STOP Read the safety information col umn 1 2 Make sure switch is in OFF position 3 Be sure gas line shut off valve is OPEN 4 Press in and turn control knob clo...

Page 11: ...hand held remote was on when selector switch was last turned off You can now turn the burner on and off with the hand held remote control unit OPERATING APPLIANCE Continued Figure 13 Setting the Sele...

Page 12: ...attern Yellow Flames with Orange Streaks CLEANING AND MAINTENANCE WARNING Turn off the ap pliance and allow to cool before cleaning CAUTION You must keep control areas burners and cir culating air pas...

Page 13: ...in gas lines when in stalled 5 Depleted gas supply pro pane LP only 6 ODS pilot is clogged 7 Gas regulator setting is in correct When ignitor button is pressed there is no spark at ODS pilot When igni...

Page 14: ...page 11 1 Contact local natural or propane LP gas company 2 Clean burner s see Cleaning and Maintenance page 12 1 Clean burner see Cleaning and Maintenance page 12 or replace burner ori ce 2 Replace d...

Page 15: ...ate burners until air is removed from line Have gas line checked by local natural or propane LP gas company 3 Observe minimum installation clearances see page 6 4 Clean burners see Cleaning and Mainte...

Page 16: ...nding while heating or contracting while cooling 1 Appliance burning vapors from paint hair spray glues cleaners chemicals new carpet etc See IMPORTANT statement above 2 Low fuel supply propane LP onl...

Page 17: ...lit burners will have delayed ignition propane LP gas supply may be low You may feel your gas pressure is too low If so contact your local propane LP or natural gas supplier TECHNICAL SERVICE You may...

Page 18: ...www desatech com 114924 01B 18 ILLUSTRATED PARTS BREAKDOWN MVO24VNA MVO24VPA MVO18VNA MVO18VPA 1 2 3 4 5 6 17 16 15 7 8 9 10 11 12 14 13...

Page 19: ...1 111807 02 111807 01 111807 02 Valve 1 10 112376 01 103778 01 112376 01 103778 01 Pilot Assembly 1 11 111828 01 111818 01 111828 01 111828 01 Brass Fitting 2 12 114930 02 114930 02 114930 01 114930 0...

Page 20: ...The heater MUST be installed by a quali ed installer in accordance with all local codes and instructions furnished with the unit This warranty does not apply to parts that are not in original conditi...

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