Vermont Casting 7PDVS User Manual
DV Power Vent System
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CER TIF IED
Model 7PDVS
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.
FOR YOUR SAFETY
WHAT TO DO IF YOU SMELL GAS:
• Do not try to light any appliance.
• Do not touch any electric switch; do not use
any phone in your building.
• Extinguish all flames.
• Immediately call your gas supplier from
your neighbours phone. Follow the gas
suppliers instructions.
• If you cannot reach your gas supplier call
the fire department.
FOR YOUR SAFETY
DO NOT STORE OR USE GASOLINE OR
OTHER FLAMMABLE VAPOURS AND
LIQUIDS IN THE VICINITY OF THIS OR
ANY OTHER APPLIANCE.
• Installation and service must be performed
by a qualified installer, service agency or
your gas supplier.
Homeowner’s Installation and
Operating Manual
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
10003262 8/06 Rev. 3
DV Power Vent System
General Information ....................................................................................................3
Power System Parts and Description ......................................................................... 4
Clearance to Combustibles ........................................................................................5
Table of Contents
Restrictor Plate Orifice Size and Models Chart ..........................................................
Installing the DV Power Vent System .........................................................................
Changing the Restrictor Orifice Plate .............................................................7
Install the Vent Pipes and the DV Power Vent System Box ........................... 8
Venting Up ......................................................................................................9
Venting Down ................................................................................................10
DV Power Vent System Setup .................................................................................. 11
Checking the Pressure Switch Position ........................................................ 11
Wire Connections ......................................................................................... 11
Adding Deflectors to Vent Termination .......................................................... 12
Wiring Diagram (Honeywell Ignition Module) ................................................
Wiring Diagram (Synetek Igntion Module) ....................................................14
Operation Instructions ..............................................................................................15
Maintenance ............................................................................................................. 15
Changing the Restrictor Plate Orifice After System is Installed ................................
Troubleshooting (Honeywell Electronic Ignitor) ........................................................
13
16
18
6
7
Troubleshooting (Synetek Electronic Ignitor) ............................................................
Replacement Parts ................................................................................................... 20
2
19
10003262
General Information and Instructions for
the DV-Power Vent System Model 7PDVS
DV Power Vent System
• This DV Power Vent System was designed to be
used only on units with electronic ignition (EN or EP).
• This DV Power Vent System was certified by CSA
to be used only with CFM Corporation Direct Vent
models, as listed in this manual.
• This DV Power Vent System can be used with any
CFM Corporation side wall vent termination kits,
vertical vent termination kits or snorkel kits (rear vent
termination not to be used).
• This DV Power Vent System must be installed by a
qualified professional according to these instructions.
• Plan the venting layout before starting the installa-
tion.
• Maximum TOTAL allowable system length is 40FT
of straight pipe, plus up to five 90 degree elbows.
Any combination of 45 and 90 degree elbows up to a
maximum of 450 degrees is allowed. It is NOT permissible to substitute elbows for length of horizontal
or vertical straight pipe.
• Can be vented down to a maximum of 12FT, meas-
ured from the center line of the highest section to the
centre line of the lowest section between the fireplace
and the DV Power Vent box.
• Minimum vent length of straight pipe between fire-
place and the DV Power Vent box is:
10 feet for units with input up to 33,000BTU/h;
15 feet for units with inputs from 33,000BTU/h
to 40,000BTU/h.
• Maximum vent length of straight pipe between the
DV Power Vent System box and the vent termination
is 6 FT.
• Only vent components manufactured by CFM Corpo-
ration are approved for use with this DV Power Vent
System.
• All 4” and 7” venting connections (twist-lock or
crimped ends) to be sealed with high temperature
silicone.
• The 4” and 7” pipes connected to the inlet side of the
DV Power Vent System box to be fitted inside the 4”
pipe and the 7” collar.
• Leave a permanent access for inspection and service
of the DV Power Vent System box.
• Confined area definition: when the distance of the
four walls around the sides of the Power Vent Box to
the stand-offs is 3” or less in average.
• When the DV Power Vent box is installed in a con-
fined area, the access door needs to have a minimum size of 12” X 12” and it must be ventilated with
a minimum of 10% open area. In a confined area
installation a minimum distance of 12” (1FT), needs
to be left between the Power Vent Box and the fifth
wall. (Refer to Figures on Page 5).
• When the DV Power Vent box is installed in an un-
confined area, the access door doesn’t need to be
ventilated.
• The power vent motor shaft MUST ALWAYS BE ori-
ented horizontally for proper operation.
• The pressure switch diaphragm MUST ALWAYS BE,
in a vertical position and the hose connection pointing down, NEVER up.
• Disconnect power supply when installing or servicing
the fireplace or the power vent system.
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DV Power Vent System
DV Power Vent System Parts and Description:
1. DV POWER VENT box assembled with a 6FT power cord.
2. Two deflectors to be added to the side wall vent termination.
3. Assorted restrictor orifice plates to be used according to the instructions for specific models.
4. Installation and Operating Instruction Manual.
1
4
3
2
4
10003262
DV Power Vent System
12"
Min.
12"
Min.
Clearance to Combustible Materials and Access Door
• The DV Power Vent System box needs a minimum 1” clearance all around the box.
The DV Power Vent System box already has a 1” stand-off on all sides.
• Pipes from the fireplace to the DV Power Vent System box and from the box to the vent termination need:
• Clearance to combustible materials of 1” all around the pipe on vertical sections.
• Clearance to combustible materials of 1” on sides and bottom, and 2” on the top of horizontal sections.
Confined Area Access Door Suggestions
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5
DV Power Vent System
Restrictor Orifice Sizes and Models
After you plan the venting lay-out and before the installation of the power vent box, check the following chart to make
sure the correct orifice is installed.
The power vent box is shipped with the 29/32” restrictor plate orifice in place, used for 36LDVT or 36LDVR models.
For all other models, replace the restrictor plate orifice with the correct size according to the following chart:
Models Input (BTU/h) Restrictor Orifice Size
33BDVT or 33BDVR 15,000 23/32”
36BDVT or 36BDVR 18,000 29/32”
DVR33 20,000 31/32”
39BDVT or 39BDVR 22,000 31/32”
43BDVT or 43BDVR 25,000 1”
DVRT36 25,000 1”
DV360 30,000 1
DVRT39 30,000 1¹⁄₃₂”
DVRT43 33,000 1
360DVS2 or 360DVS3 or 360DVSL or 360DVSR 38,000 1
DV580 38,000 1
33LDVR or 33LDVT 16,000 29/32”
36LDVR or 36LDVT 19,500 29/32”
39LDVR or 39LDVT (NG) 23,000 31/32”
39LDVR or 39LDVT (LP) 22,500 31/32”
43LDVR or 43LDVT (NG) 26,000 1”
43LDVR or 43LDVT (LP) 24,000 1”
33XDVR 21,500 31/32”
33XDV 21,500 31/32”
36XDV 27,500 1
39XDV 31,000 1
¹⁄₃₂”
¹⁄₁₆”
¹⁄₄”
¹⁄₄”
³⁄₈”
¹⁄₃₂”
6
10003262
Installing the DV Power Vent System
1-Changing the Restrictor Orifice Plate:
Before installation of the power vent box (RECOMMENDED):
A. From the inlet side, remove the two 3/8” nuts holding the orifice plate.
B. Remove the orifice plate.
C. Install the correct restrictor orifice plate according to the chart above.
D. Place back the two nuts to hold the restrictor orifice plate and tighten.
Outlet
(To vent termination)
DV Power Vent System
Inlet
(From fireplace)
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DV Power Vent System
Inlet
Outlet
Inlet
Outlet
Inlet
Outlet
Inlet
Outlet
2-Install the Vent Pipes and the DV Power Vent System Box:
Install pipes and elbows according to the lay-out from
the unit to the Power Vent System Box and from it to
the vent termination. Follow the vent installation according to the fireplace manual recommendations.
Four different ways to install the Power Vent System Box.
Remember that the blower shaft MUST ALWAYS BE in
a horizontal plane and the pressure switch diaphragm
MUST ALWAYS BE in a vertical plane with the hose
connections pointing down.
8
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