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114925-01B

9

INSTALLATION

Continued 

Figure 8 - Equipment Shutoff Valve

Equipment 
Shutoff 
Valve

Open

Closed

Figure 10 - Checking Gas Joints  

(Natural Gas Only)

Control Valve 
Location

Equipment
Shutoff Valve

Propane/LP
Supply Tank

Equipment 
Shutoff Valve

Gas Meter

Figure 9 - Checking Gas Joints  

(Propane/LP Gas Only)

Control Valve 
Location

6.  Reconnect  heater  and  equipment  shutoff 

valve to gas supply. Check reconnected fit-

tings for leaks. 

Test Pressures Equal To or Less Than 
1/2 PSIG (3.5 kPa)

1.  Close equipment shutoff valve (see Figure 8).
2.  Pressurize  supply  piping  system  by  either 

opening propane/LP supply tank valve for 

propane/LP gas or opening main gas valve 

located on or near gas meter for natural gas 

or using compressed air.

3.  Check all joints from gas meter to equipment 

shutoff valve for natural gas or propane/LP 

supply to equipment shutoff valve for propane/

LP (see Figure 9 or 10). Apply noncorrosive 

leak detection fluid to all joints. Bubbles form-

ing show a leak. 

4.  Correct all leaks at once.

Pressure Testing Appliance Gas 
Connections

1.  Open equipment shutoff valve (see Figure 8).
2.  Open main gas valve located on or near gas 

meter  for  natural  gas  or  open  propane/LP 

supply tank valve.

3.  Make sure control knob of appliance is in the 

OFF position.

4.  Check all joints from equipment shutoff valve 

to gas control (see Figure 9 or 10). Apply 

noncorrosive leak detection fluid to all joints. 

Bubbles forming show a leak.

5.  Correct all leaks at once. 
6.  Light appliance (see 

Operating Appliance

page 10) Check all other internal joints for 

leaks.

7.  Turn off appliance.

PLACEMENT OF LOOSE EMBERS

  CAUTION:  Do  not  place 

any loose embers around pilot 

assembly.

Two bags of loose embers are provided with this 

unit. For this installation use the embers that are 

approximately 1" square in size. If needed, larger 

embers can be broken to size. These embers aid 

in  concealing  the  burner  pan,  directing  flames 

through the ember bed, quiet operation of the unit 

and gives a natural random flame pattern.
Place embers as follows:
1.  Place embers around the center ember bed or 

ember pod.

2.  Place individual embers on their edge (not flat) 

along the top of the burner pan. This aids in 

directing flames from the burner through the 

ember bed. 

 

Note:

 Too many embers or embers placed flat 

along burner pan can suppress the flames.

3.  When unit is lit, check flames for random appear-

ance and ember bed glowing red-orange in color 

(see 

Burner Flame Pattern

, page 11). If this is 

not happening, either add, remove or reposition 

loose embers. 

IMPORTANT:

 Turn unit off and 

let cool before repositioning loose embers.

Figure 11 - Placement of Embers

Summary of Contents for Firewerks MPF18VNA

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: ...33 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 This app...

Page 3: ...ent 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 s...

Page 4: ...s provided by other means screens shall have openings for introduction of combustion air 8 Toreducethecreationofsoot followtheinstruc tions in Cleaning and Maintenance page 12 SAFETY INFORMATION Conti...

Page 5: ...WARNING A quali ed ser vice person must install heater Follow all local codes WARNING Before installing in a solid fuel burning replace the chimney ue and rebox must be cleaned of soot creo sote ashes...

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: ...to the control valve INSTALLATION Continued CAUTION Never connect propane LP unit directly to the propane LP supply This unit requires an external regulator notsupplied Installtheexternal regulatorbe...

Page 8: ...Tap Natural From Gas Meter 5 W C to 10 5 W C Pressure Propane LP From External Regulator 11 W C to 14 W C Pressure 3 Min Pipe Cap Tee Nipple Joint CHECKING GAS CONNECTIONS WARNING Testallgaspiping an...

Page 9: ...ly tank valve 3 Make sure control knob of appliance is in the OFF position 4 Check all joints from equipment shutoff valve to gas control see Figure 9 or 10 Apply noncorrosive leak detection uid to al...

Page 10: ...l knob clockwise to the OFF position see Figure 12 Note Knob cannot be turned from PILOT to OFFunless knob is pushed in slightly DO NOT FORCE 5 Wait ve 5 minutes to clear out any gas If you then smell...

Page 11: ...e thermocouple to cool When the thermocouple cools the appliance will shut down If pilot ame pattern is incorrect as shown in Figure 16 turn appliance off see To Turn Off Gas to Appliance page 10 see...

Page 12: ...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 have further questions about i...

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 17 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: ...6040 for referral information You can also write to the address listed on the back page of this manual EQUIPMENT SHUTOFF VALVE GA5010 Equipment shutoff valve with 1 8 NPT tap Fits 1 2 pipe FIREPLACE H...

Page 18: ...www desatech com 114925 01B 18 ILLUSTRATED PARTS BREAKDOWN MPF24VNA MPF24VPA MPF18VNA MPF18VPA 1 2 3 4 5 6 17 16 15 7 8 9 10 11 12 14 13...

Page 19: ...01 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 01 114930 01 114930 01 114930...

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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