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www.desatech.com

114924-01B

3

SAFETY INFORMATION

 WARNING: This product con-

tains and/or generates chemicals 

known to the State of California 

to cause cancer or birth defects 

or other reproductive harm.

 WARNING: Keep flue open 

when operating unit.

IMPORTANT:  Read  this  owner’s 

manual carefully and completely 

before trying to assemble, operate 

or service this log set. Improper use 

of this log set 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 log set may not be working properly. 

Get fresh 

air at once!

 Have log set 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 influence 

of alcohol and those at high altitudes.

Natural & LP Gas:

 Natural & LP gas are odorless. 

An odor-making agent is added to the gas. 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 log set.

 WARNING: Do not place log 

scraps or lava rocks on burner.

 WARNING: Do not use a blow-

er insert, heat exchanger insert or 

other accessory not approved for 

use with this appliance.

  WARNING:  Any  change  to 

this  log  set  or  its  controls  can 

be dangerous.

  WARNING:  This  appliance 

is equipped for (natural or pro-

pane/LP) gas. Field conversion 

is not permitted.

 WARNING: Do not allow fans 

to blow directly into the fireplace. 

Avoid any drafts that alter burner 

flame patterns.

 WARNING: Installed decora-

tive glass door enclosures must 

be fully opened when operating 

this gas appliance.

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 appliance.

Appliance  assembly  becomes 

very  hot  when  running.  Keep 

children and adults away from hot 

surface to avoid burns or clothing 

ignition. Appliance will remain hot 

for a time after shutdown. Allow 

surface to cool before touching.

Carefully  supervise  young  chil-

dren when they are in the room 

with appliance. When using hand-

held remote accessory, keep se-

lector switch in the OFF position 

to prevent children from turning 

on burners with remote.

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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