American Hearth | 35444, 35446, 35448, 35462, & 35464 Conversion Kits for DVD & DVX | Owner Manual | White Mountain Hearth 35444, 35446, 35448, 35462, & 35464 Conversion Kits for DVD & DVX Owner Manual

White Mountain Hearth 35444, 35446, 35448, 35462, & 35464 Conversion Kits for DVD & DVX Owner Manual
GAS CONVERSION INSTRUCTIONS
DIRECT-VENT GAS FIREPLACE
conversion kits
Model & Part Number
Model & Part Number
DVX36FP91LP-3
35444
DVP36FP91P-7
35448
DVX42FP91LP-3
35446
DVP42FP91P-6
35462
Model & Part Number
DVP48FP91P-6
35464
FOR CONVERSION TO NATURAL GAS
WARNING
This conversion kit is to be installed by an Empire Comfort Systems, Inc., distributor (or other
qualified agency¹)*in accordance with the manufacturer’s instructions and all codes and
requirements of the authority having jurisdiction. Failure to follow instructions could result
in serious injury or property damage. The qualified agency performing this work assumes
responsibility for this conversion.
1National Fuel Gas Code Z223.1 (Latest Edition)
*The term “qualified individual, firm, corporation or company which either in person or through
a representative is engaged in and is responsible for (a) the installation of gas piping or (b)
the connection, installation repair, or servicing of equipment, who is experienced in such
work, familiar with all precautions required, and has complied with all the requirements of the
authority having jurisdiction.
CHECK THE SAFETY SHUTDOWN PERFORMANCE
WARNING
Perform the safety shutdown test any time work is done on a gas system to avoid the possibility
of fire or explosion with property damage, personal injury or loss of life.
CHECK SAFETY SHUTDOWN SYSTEM
Intermittent Pilot System
1. Turn main switch to "OFF" position. Main burner and pilot should go off.
2. Pilot gas flow should stop within 30 seconds.
3. Relight pilot burner and operate system through one complete cycle to make sure all controls operate properly.
PARTS LIST
Part Description
Conversion Kits
35444
35446
35448
35462
35464
Qty.
Burner Orifice
P211
P209
P256
P203
P213
1
Pilot Orifice
R10425
R10425
R10425
R10425
R10425
1
Sit Valve Conversion Kit
R11381
R11381
R11381
R11381
R11381
1
Conversion Label
2139
2139
2139
2139
2139
1
Tools Needed: Standard screwdriver, 1/4 inch hex driver, 5/16 inch hex driver, 7/16-inch wrench
36485-0-0918
Empire Comfort Systems Inc. • Belleville, IL
Page 1
Gas input for direct vent fireplace
converted to Natural gas:
•
•
•
•
•
DVX36FP91 - 35,000 BTU per hour
DVX42FP91 - 37,500 BTU per hour
DVP36FP91 - 25,000 BTU per hour
DVP42FP91 - 28,000 BTU per hour
DVP48FP91 - 30,000 BTU per hour
The direct vent gas fireplace when converted to Natural
gas will have a manifold pressure of approximately 3.5"
w.c. (.871kPa) at the valve outlet with the inlet pressure to
the valve from a minimum of 4.5" w.c. (1.120kPa) for the
purpose of input adjustment to a maximum of 14.0" w.c.
(3.484kPa).
10. Install Natural gas main burner orifice into orifice fitting:
•
•
•
•
•
for DVX36 use orifice MARKED #32
for DVX42 use orifice MARKED #31
for DVP36 use orifice MARKED #41
for DVP42 use orifice MARKED #38
for DVP48 use orifice MARKED #37
11. Disconnect the gas line from the pilot to gain access to
the pilot injector.
12. Remove Propane (LP) gas pilot injector orifice from pilot
burner.
13. Insert Appropriate Natural gas pilot injector orifice into
pilot burner.
14. Re-install gas line to the pilot.
INSTRUCTIONS FOR CONVERSION
1. If fireplace is installed, turn OFF gas and electric supply
to fireplace before making gas conversion.
15. Convert the gas valve as instructed in S.I.T. Natural Gas
Valve Conversion Kit.
2. Remove top louver by lifting up and pulling forward.
Remove bottom louver by lifting up and hinging forward.
16. Adjust air shutter setting to 1/8" Open on all DVP models. Adjust air shutter setting to 1/4" Open on all DVX
models.
3. For models that include a decorative front face accessory,
remove decorative front doors (where applicable) by
opening and lifting straight up. Next, remove decorative
front by tilting lower portion forward to release ball catch
and lifting the front off the mounting bracket. See Figure 1.
17. Align the burner assembly with the air shutter as you
place burner assembly into the original position in firebox.
18. Attach air shutter to burner assembly with one (1) 8 x
1/4" screw from Step 7.
19. Attach burner assembly to firebox bottom with four (4)
10 x 1/2" screws from Step 7.
20. The flue vent baffle must be bent up to horizontal when
converting to NAT gas from LP gas. Grasp edge of
baffle and bend downward so that the flange is straight
forward. See Figure 2.
Figure 1
4. Release two glass frame spring clamps at bottom of
firebox.
5. Remove glass frame assembly.
Figure 2
6. Remove logs from burner assembly.
7. Remove four (4) 10 x 1/2" screws from burner base
and one (1) 8 x 1/4" screw from air shutter. Grasp
burner assembly, lift and pull forward to remove burner
assembly.
8. Remove air shutter from orifice fitting.
9. Remove LP (Propane) gas main burner orifice from
orifice fitting.
Page 2
21. The converted fireplace must be connected to a supply
of the conversion gas and checked for leaks at all
connections.
22. Refer to Log and Ember Placement in your Installation
Instructions.
23. The fireplace must be checked to ensure it is operating
at the correct pressure of 3.5" w.c.
Empire Comfort Systems Inc. • Belleville, IL
36485-0-0918
24. Replace glass frame onto firebox.
25. Secure the two glass frame spring clamps at bottom of
firebox to secure glass door assembly.
26. Align the tabs on top louver brackets with slots in front
posts to secure top louver. For models that incorporate
a full decorative face accessory, close bottom louver.
Lift slightly to engage the end tabs into the slots in fireplace sides to close bottom louver.
27. If applicable, replace decorative front by hooking front
mounting brackets. Be sure to lower front with slight angle to keep ball clasp front scratching the front of appliance. Push in lower portion to lock ball clasp. Replace
decorative front doors by aligning hinges over posts.
See Figure 3.
Figure 3
28. Gas conversion is completed.
The main burner flame and pilot burner flame must be
checked for proper flame characteristics, as outlined in the
Installation Instructions and Owner’s Manual.
Verifying Input Rate of Converted Fireplace
The input of the fireplace must be checked as follows:
1. Turn off all other gas appliances. Clock the gas meter
and determine the number of seconds required to consume one cubic foot of gas.
2. 3600 ÷ time (in seconds) = cu. Ft. per hour.
3. Then cu. Ft. per hour x heating value of gas = input rate
(Btuh). On installation without gas meters, check manifold for proper pressure.
If fireplace is not installed or warranty card has not been
returned to Empire Comfort System’s, Inc., check off type
of gas converted to on card. Also, indicate conversion by
adding “Conv.” behind type of gas.
36485-0-0918
Empire Comfort Systems Inc. • Belleville, IL
Page 3
Empire Comfort Systems Inc.
Belleville, IL
If you have a general question
about our products, please e-mail
us at info@empirecomfort.com.
If you have a service or repair
question, please contact your dealer.
www.empirecomfort.com
Page 4
37706-0-1116
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