MHSC 7THPDVS User manual

DV Power Vent System
Model 7THPDVS
DO NOT STORE OR USE GASOLINE OR
OTHER FLAMMABLE VAPOURS AND
LIQUIDS IN THE VICINITY OF THIS OR
ANY OTHER APPLIANCE.
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 ames.
• Immediately call your gas supplier from
your neighbours phone. Follow the gas
suppliers instructions.
• If you cannot reach your gas supplier call
the re department.
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.
Homeowner’s Installation and
Operating Manual
FOR YOUR SAFETY
• Installation and service must be performed
by a qualied installer, service agency or
your gas supplier.
20302353 2/11 Rev. 3
D
E
S
I
G
N
C
E
R
T
I
F
I
E
D
CERTIFIED
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
For use with Approved MHSC
Fireplace Signature Command
Models
Electrical connections should be per-
formed by a qualied electrician,
The main power supply must be turned
off before connecting power vent to main
power supply or before performing any
service.
2353
power vent cover

DV Power Vent System
220302353
General Information ....................................................................................................3
Venting Runs ............................................................................................................... 4
Termination Locations.................................................................................................. 5
Termination Clearances ............................................................................................... 6
Clearance to Combustible Materials and Access Door ............................................... 7
7THPDVS Power Vent System Wiring Diagram .......................................................... 8
Junction Box Wiring Diagram .......................................................................... 8
7THPDVS Power Vent Termination Installation ........................................................... 9
Install Probe Vent Assembly and Venting Pipe ................................................ 9
Restrictor Plate Installation and Set Up .........................................................10
Route Wiring from Power Vent ......................................................................10
Connect Wiring to Junction Box ..................................................................... 11
Install Power Vent Module ............................................................................. 11
Set Up Signature Command System for Power Vent Operation ...................12
7THPDVS Power Vent System Operation ................................................................. 12
7THPDVS Power Vent System Components ............................................................ 13
Horizontal Venting Components ................................................................................ 14
Table of Contents

3
DV Power Vent System
20302353
• This DV Power Vent is designed to be serviced from
either inside or outside the dwelling. However, if it must
be serviced from the inside, a permanent access panel
must be supplied.
• This DV Power Vent System was designed to be used
only on units with Signature Command (SC or TSC). If
the Power Vent System is to be used with a Signature
Command (SC) unit, the A/C Module (SCSACM) must
also be installed. The Signature Command (TSC)
units will have the A/C Module (SCSACM) already
installed.
• This DV Power Vent System was certied by CSA to
be used only with MHSC Signature Command Direct
Vent replace models:
BDV/DVB MLDV/DVML
BLDV/DVBL VCFDV
CDV VHLDV
HBDV/DVBH VWDV
KHLDV WDV
KSTDV WDVST
MDV/DVM
General Information and Instructions for
the DV-Power Vent System Model 7THPDVS
• When using the Power Vent with the KHLDV, KSTDV,
VHLDV or VCFDV Series replaces, the rear burner
shut-down feature will no longer function. (Refer to
diagram and notes on Page 8, Figure 6)
• This DV Power Vent System must be installed by a
qualied professional according to these instructions.
• Plan the venting layout before starting the installa-
tion.
• Only vent components manufactured by MHSC (4 x
7 twist lock) are approved for use with this DV Power
Vent System. Units with 5 x 8 venting use an 5 x 8 to 4
x 7 twist lock reducer (7TDVP58).
• Disconnect power supply when installing or servicing
the replace or the power vent system.
• The Signature Command battery back up feature will
not function when using the Power Vent.
• Standing Pilot Mode is not available when using the
Power Vent System.

DV Power Vent System
420302353
Maximum vent is 110 feet, plus six 90° elbows or twelve
45° elbows. Minimum horizontal vent length is 8 feet,
maximum vertical rise above the replace is 66 feet. The
vent can be installed with any combination of rise and run
between appliance and termination, including up to 5 feet
below the unit. Figure 1. Ensure vent pipe is properly sup-
ported.
FP2790
power vent run
Power Vent
Termination
Power Vent
Termination
Power Vent
Termination
Exterior Wall Adjust-
able Pipe
Vent Sections
Vent Sections
Support Brackets
Support
Brackets
Horizontal / Inclined Run
Firestop/ Spacer
Firestop/
Spacer
Building
support
Framing
Elbow
Elbow
Ceiling
Maximum Venting
110’ Max. Up to 6
Elbows
Fireplace
Fireplace Fireplace
Probe
Adapter
(required)
Probe Adapter
(required)
Probe
Adapter
(required)
Vent Reducer
(if Required)
Vent Reducer
(if required)
Vent Re-
ducer (if
required)
5 Feet Below
Bottom of Fire-
place Maximum
Exterior
Wall
Floor
Maximum
Vertical Rise
66 Feet
FP2790
Figure1
Minimum Vent
Run 8’ Horizontal
A
B
FP2791
vent chart
Probe Assembly
(required)
FP2791
Power Vent Venting Chart
Maximum Number of Elbows - 6
Maximum Feet of Run A + B 110 feet
Minimum Horizontal Run B 8 feet
Minimum Vertical Rise A Probe Assembly
and Elbows
Maximum Vertical Rise A 66 feet
Figure2
Cut to Length
or Adjustable
Pipe
Cut to Length or
Adjustable Pipe
Vent Reducer
(if required)
NOTE: When using replaces with 5 x 8 venting collar,
a vent reducer must be used as the rst starting pipe
(7TDVP58) before the probe assembly.
NOTE: All outside pipe joints must be
sealed with exible aluminum duct tape
or equivalent. DO NOT use vinyl duct
tape.

5
DV Power Vent System
20302353
V
V
V
V
V
V
V
X
X
X
D
E
B
B
B
C
B
M
B
A
J
K
F
L
VENT TERMINATION AIR SUPPLY INLET AREA WHERE TERMINAL IS NOT PERMITTED
H
I
Fixed
Closed
Operable
Operable Fixed
Closed
V
B
CFM145a
DV Termin Location
5/01/01 Rev. 12/05/01
sta
INSIDE
CORNER DETAIL
V
A
G
CFM145a
GENERAL VENTING INFORMATION - TERMINATION LOCATION
A = Clearance above grade, veranda, porch, 12” (30 cm) 12” (30 cm)
deck, or balcony
B = Clearance to window or door that may be 6” (15 cm) for appliances 6” (15 cm) for appliances
opened < 10,000BTU/h (3kW), 12” (30 cm) < 10,000 BTU/h (3kW), 9”
for appliances > 10,000 Btuh (3kW) and (23 cm) for appliances > 10,000
< 100,000 BTU/h (30kW), 36” (91 cm) Btuh (3kW) and < 50,000 BTU/h
for appliances > 100,000 BTU/h (30kW) (15kW), 12” (30 cm) for
appliances > 50,000 BTU/h(15kW)
C = Clearance to permanently closed window 12” (305 mm) recommended to 12” (305 mm) recommended to
prevent window condensation prevent window condensation
D = Vertical clearance to ventilated soft located
above the terminal within a horizontal 18” (458 mm) 18” (458 mm)
distance of 2’ (610mm) from the center
line of the terminal
E = Clearance to unventilated soft 12” (305 mm) 12” (305 mm)
F = Clearance to outside corner see next page see next page
G = Clearance to inside corner (see next page) see next page see next page
H = Clearance to each inside of center line 3’ (91 cm) within a height of 15’ (5 m) 3’ (91 cm) within a height of 15’
extended above meter/regulator assembly above the meter/regulator assembly (5 m) above the meter/regulator
assy
I = Clearance to service regulator vent outlet 3’ (91 cm) 3’ (91 cm)
J = Clearance to nonmechanical air supply inlet 6” (15 cm) for appliances < 10,000 6” (15 cm) for appliances
to building or the combustion air inlet to any BTU/h (3kW), 12” (30 cm) for < 10,000 BTU/h (3kW), 9”
other appliances appliances > 10,000 BTU/h (3kW) and (23 cm) for appliances > 10,000
< 100,000 Btuh (30kW), 36” (91 cm) BTU/h (3kW) and < 50,000 BTU/h
for appliances > 100,000 BTU/h (30kW) (15kW), 12” (30 cm) for
appliances > 50,000 BTU/h(15kW)
K = Clearance to a mechanical air supply inlet 6’ (1.83 m) 3’ (91 cm) above if within 10'
(3 m) horizontally
L = Clearance above paved sidewalk or paved 7’ (2.13 m)† 7’ (2.13 m)†
driveway located on public property
M = Clearance under veranda, porch, deck or 12” (30 cm) 12” (30cm)
balcony
1 In accordance with the current CSA-B149 Installation Codes
2 In accordance with the current ANSI Z223.1/NFPA 54 National Fuel
Gas Codes
† A vent shall not terminate directly above a sidewalk or paved
driveway which is located between two single family
dwellings and serves both dwellings
 only permitted if veranda, porch, deck or balcony is fully open on a
minimum 2 sides beneath the oor:
Canadian Installations1 US Installations2
NOTE: 1. Local codes or regulations may require different
clearances.
2. The special venting system used on Direct Vent Fireplaces
are certied as part of the appliance, with clearances
tested and approved by the listing agency.
3. MHSC assumes no responsibility for the improper
performance of the appliance when the venting system
does not meet these requirements.
Figure3-
TerminationLocations

DV Power Vent System
620302353
Outside Corner
Inside Corner
Termination Clearances
Termination clearances for buildings with combustible and noncombustible exteriors.
G =
Combustible
6" (152 mm)
Noncombustible
2" (51 mm)
F =
Combustible
6" (152 mm)
Noncombustible
2" (51 mm)
G
Balcony -
with no side wall
M =
Combustible &
Noncombustible
12" (305 mm)
M
Balcony -
with perpendicular side wall
M = 24" (610 mm)
P = 20” (508 mm)
M
F
Alcove Applications*
C
D
C
E
V
V
Combustible &
Noncombustible
V
V
V
E= Min. 6” (152 mm) for
non-vinyl sidewalls
Min. 12” (305 mm) for
vinyl sidewalls
O= 8’ (2.4 m) Min.
O
P
584-15
No.
of Caps DMin. CMax.
1 3’ (914 mm) 2 x DActual
2 6’ (1.8 m) 1 x DActual
3 9’ (2.7 m) 2/3 x DActual
4 12’ (3.7 m) 1/2 x DActual
DMin. = # of Termination caps x 3
CMax. = (2 / # termination caps) x DActual
*NOTE: Termination in an alcove space (spaces open only on one side and with an overhang) is permitted with the dimensions specied for vinyl or
non-vinyl siding and softs. 1. There must be a 3’ (914 mm) minimum between termination caps. 2. All mechanical air intakes within 10’ (1 m) of a
termination cap must be a minimum of 3’ (914 mm) below the termination cap. 3. All gravity air intakes within 3’ (914 mm) of a termination cap must
be a minimum of 1’ (305 mm) below the termination cap.
Figure4-
TerminationClearances

7
DV Power Vent System
20302353
Clearance to Combustible Materials and Access Door
• The DV Power Vent System box needs a minimum
3/8” clearance all around the box. The DV Power
Vent System box has a 3/8” standoff on all sides.
• Vent pipes from the replace to the DV Power Vent
System must refer to replace installation instructions
for proper clearances.
1656QE”
(430 mm)
1156O”
(292 mm)
46QE”
(106 mm)
1356O” (343 mm) (Actual)
14” (356 mm) (Framing
16” (406 mm)
12”
(305 mm)
46QE”
(116 mm) 156O”
(38 mm)
956O” (241 mm)
(Actual)
10” (254 mm)
(Framing)
856QE”
(224 mm)
FP2791
power vent framing clearances
Figure5

DV Power Vent System
820302353
To
Junction Box
AC Module
{White
Black
Light
White
Black
{
Optional
Blower
White
Black
Aux.
Green
Plug in
Connector
Connector Pin
To Control Board
Input 300 Watt
Max. Each
Control Board
RF Receiver
ON/OFF Button
Pilot
Black
Red
Sensor
Ignitor / Sparker
Conversion
NG/LP
Plug-in Connector
Control Board to Command Center
OFF/LO LED ON/HI
Master Switch
Command Center
Plug-in Connector
Stepper Motor to
Control Board
DC Power/Green
Ground
Plug-in Connector
Control Board to
Solenoid
Gas In
Gas Out
Pilot Gas Tubing
Valve
Power Vent
Disconnect
Themopile
NOTE: Thermopile
is not used with
Power Vent
Red
Red
Black
Yellow
Power Vent
Module
Vacuum Switch
NOTE: Wall switch wires
must be connected together
FP2793
pv wiring diagram
Junction
Box
Field Supplied
14-2 w/ Ground
Black
White
Green
120V Supply 60 Hz
(Field supplied
14-2 w/ ground)
White
Black
Green
*Rear Burner
Solenoid Valve
(KHLDV, KSTDV,
VCPDV, VHLDV)
*NOTE: For rear burner shut-down
models, aux. wire must be
disconnected from solenoid
valve. Refer to Page 10
Electrical Grounding Instructions: This
appliance is equipped with a three-prong
(grounding) plug for your protection against
shock hazard and should be plugged directly
into a properly grounded three-prong
receptacle.
WARNING
Figure 6 -
7THPDVS Power Vent Wiring Diagram
Standing Pilot
mode is not
available when
thermopile is
disconnected.

9
DV Power Vent System
20302353
POWER VENT TERMINATION
INSTALLATION
1. Locate and cut the vent opening in the wall. Combus-
tible and noncombustible walls: Cut a 10” H x 14” W
(254 x 356 mm) vent opening through the exterior wall
and frame as shown in Figure 7.
2. Secure the restop to the inside frame and center in
the 10” H x 14” W vent opening.
3. Install the power vent in the opening through the exte-
rior wall until the mounting ange is ush against the
wall.
4. Attach the power vent with screws provided and seal
top and sides of the mounting ange with caulking.
14”
(356 mm)
10”
(254 mm)
856O”
(216 mm)
FP2820
wall framing
Maximum Combustible Wall
Siding
Sheathing
Caulking
Power
Vent
Siding “J”
Channel
Twist lock
Adjustable
Termination
Pipe
Figure7
Interior
Finish Wall
Firestop
RESTRICTOR DISC INSTALLATION AND SET
UP
Before starting vent assembly, the restrictor discs must
be installed. NOTE: Installation is easiest from the top of
the replace.
1. Check the inside vent pipe size; either 4” or 5”. Use
the correct size restrictors provided for the correct vent
size.
2. Stacking all three (3) restrictor discs, screw together
with one stainless steel screw in center. Adjust so that
all three discs are stacked fully open as shown in Fig-
ure 8.
NOTE: To achieve the proper ame appearance and igni-
tion, the restrictor disc setting may need to be adjusted
by closing any two (2) of the discs depending on each
individual installation requirements. Figure 9. However,
most installations do not require any adjustment to the
fully open disc setting when outer vent pipe installation is
properly sealed with aluminum tape. Refer to Page 4 and
next section.
Figure8-
AllThree(3)DiscsFullyOpen
FP2830
disc #3
FP2822
restrictor plate
Figure9-
Restrictordisc
(shownwith2discsclosed)
INSTALL PROBE VENT ASSEMBLY AND
VENTING PIPE
1. Attach the probe assembly to the replace collar:
Fireplace collars 4 x 7 venting: The probe assem-
bly will slide on collar. Attach with two (2) sheet metal
screws. Make sure the probe stem is facing toward the
side of the replace where the vacuum hose will be
inserted. Figure 10
Fireplace collars 5 x 8 venting: You must use a 5 x
8 to 4 x 7 reducer (7TDVP58). Install the reducer by
pushing down into the replace collar and attach with
two (2) sheet metal screws. Push the probe assembly
down onto reducer and attach with two (2) sheet metal
screws. Make sure the probe stem is facing toward the
side of the replace where the vacuum hose will be
inserted. Figure 10
2. Install the vacuum hose to the probe stem by pushing
the hose onto the stem 1/4”. Figure 10

DV Power Vent System
10 20302353
ROUTE WIRING FROM POWER VENT
1. Remove the junction box cover from the power vent.
Figure 11
FP2823
14-2 w ground
14-2 w/Ground (Field Supplied)
FP2823
Figure11
FP2824
AUX wires
AUX Wire from
A/C Module Junction Box
New Cover Plate
Power Vent Module
Vacuum Hose
FP2824
Figure12
3. Remove the 1” knockout hole on the side of the re-
place. Snap in plastic ring provided and run vacuum
hose through hole and into lower access area making
sure to secure hose away from replace top. DO NOT
allow hose to lay on replace top. Figure 16
4. Vent sections may be added to the previously installed
probe assembly in accordance with the requirements
of the replace installation manual and the vent charts
provided in this instruction. NOTE: All outside pipe
joints must be sealed with exible aluminum duct tape
or equivalent. Due to high temperatures, DO NOT use
vinyl duct tape. NOTE: The last pipe before the power
vent must be an adjustable termination section provid-
ed with kit or 20” termination pipe (7TDVP20/8), which
can be cut to length, to attach to the power vent.
5. When the power vent installation is to be serviced from
inside the dwelling, the slip pipe section must be used
to attach to the power vent for future serviceability.
FP2821
probe vent assy
Twist lock Pipe
Section
Probe Vent Assembly
Vacuum Hose
Vent Reducer
(if required)
Fireplace
Starting Collar
Figure10-
ProbeVentAssembly
FP2821
2. Connect the 14-2 w/ground romex wiring (not provid-
ed) to the power vent black, white and green wires with
wire nuts provided. Reinstall cover and tighten strain
relief. Figure 6 wiring diagram
3. Route the 14-2 w/ground wire from power vent to re-
place location. Ensure the wiring is safely placed to
prevent damage by framing nails and drywall screws.
CONNECT WIRING TO FIREPLACE JUNC-
TION BOX
1. Remove screw from side holding the junction box and
lift out.
2. Remove cover plate and outlet from junction box and
discard.
3. Run the replace power 14-2 w/ground (refer to re-
place installation manual) and power vent 14-2 w/
ground wire through strain relief and into junction box.
Figure 16
4. Run the black, white and green wires from A/C module
labeled AUX through the strain relief of the new cover
plate provided in the kit. NOTE: Some models require
disconnecting the aux. wire from solenoid valve. (This
will make the rear burner shut-down feature inoper-
able. Refer to Figure 6.) Figure 12
5. Connect the 14-2 w/ground wire from the power vent
to the AUX wires from the A/C module with wire nuts.
Also at this time, connect the replace power 14-2 w/
ground wire to the outlet wires with wire nuts. Refer to
wiring diagram Figure 6.
6. Reinstall the cover plate and junction box in reverse
order.

11
DV Power Vent System
20302353
INSTALL THE POWER VENT MODULE
1. Remove the control board and Command Center
through replace access opening.
2. Unplug the 2 ft.-6 wire cable between the control box
and command center and replace with the new cable
from the kit. NOTE: The red wires marked wall switch
must be connected together if no wall switch is used.
Figure 13
3. With a Phillips screwdriver, disconnect the thermopile
wires from the control board. The thermopile is not
used with the power vent. Figure 14
4. Connect the black and red wires with the fork termi-
nals from the power vent module wire assembly to the
control board where the thermopile was disconnected.
NOTE: The red wire must connect to the positive (+)
red connection. The system is polarity sensitive. Fig-
ure 14
5. Connect the black and yellow wires to the two (2) black
and yellow spade connectors on the 2 ft.-6 wire cable.
Figure 14
6. Plug the wiring harness into the six (6) pin connec-
tor on the power vent module. Also attach the vacuum
hose to the pressure switch on the module. Place the
velcro on the module and attach to the oor of the re-
place area. Figure 13
FP2825
power vent module
Command
Center
Vacuum Hose
Power Vent Module
2 ft. Wire Cable
FP2825
Figure13
6-pin Wire Harness
Control Board
A/C Module
NOTE: Firebox face removed for clarity. (WDV600 shown)
FP2828
power module wire assy
Black & Yellow Wires
from Power Vent Module
Wire Assembly
Red & Black Wires from
Power Vent Module Wire
Assembly
FP2828
Figure14

DV Power Vent System
12 20302353
POWER VENT SYSTEM OPERATION
1. Turn master switch ON (-).
2. Press the ON button at the command center or the
remote.
3. The power vent blower will start.
4. After a few seconds, the igniter starts sparking and
pilot will light.
5. The burner will light after a few seconds.
6. The replace will operate until turned off. Refer to
the replace manual for replace operational instruc-
tions.
NOTE: Power vent blower will continue to run for 90 sec-
onds after ame is turned off.
FP2826
thermopile
Disconnect Thermopile
FP2826
Figure15
FP2827
power supply cord
Plastic Ring
Vacuum
Hose
Power Supply
IN and to
Power Vent
FP2827
Figure16
SET UP SIGNATURE COMMAND SYSTEM
FOR POWER VENT OPERATION
The control board program must be reset to operate the
power vent. Follow these instructions to reset the control
board from basic to power vent operation.
1. Turn ON power to the replace.
2. Turn master switch to OFF (o).
3. Locate the on/off RF button on the control board. With
a paper clip, press and hold the RF button while
turning ON the master switch. You should hear one
(1) beep for power vent ON and two (2) beeps for
power vent OFF and release.
4. After the power vent program is turned ON, turn OFF
the master switch and place the control box back into
the control access area.
The system is now ready to operate.

13
DV Power Vent System
20302353
2353
power vent parts
1
2
34
5
6
7
8
9
10
11 12
13
14
15
16
17
18
19
20
21
22
23
3
4
7THPDVS Power Vent Parts
Ref. Description Qty. Part No.
1. Termination Assy. 1 20300939
2. Firestop Assy. 1 20302228
3. Probe Assy. 1 20302272
4. Adjustable Termination Pipe 1 69D3068
5. 4” Restrictor 3 45D0551
6. 5” Restrictor 3 56D3027
7. SS Screw 1 20014369
8. Strain Relief 1 26D0215
9. Electrical Cover 1 20301694
10. #8 Screw 2 0052825B
11. Wire Nuts 6 20302355
12. Velcro 1 37D0394
13. Module, Power Vent SCS 1 20301934
14. Cable, CC/CB 24” w/power leads SCS 1 20301889
15. Wire, Power Vent Module SCS 1 20302293
16. 7 ft. Rubber Tubing 1 20302239
17. Wire Ties 2 17D0601
18. Receptacle 2 7522253
19. Electrical Cover Plate 1 20302235
20. Strain Relief Connector 1 10000821
21. Termination Bolt Bag 1 20002404
22. Pipe Bolt Bag 1 0056167
23. Installation Manual 1 20302353

DV Power Vent System
14 20302353
HORIZONTAL VENTING
584G
Venting Components
Firestop spacer
2/25/99 djt
584H
Venting components
attic insulation shield
2/25/99 djt
584I
vent components
offset support
2/25/99 djt
Description Model Number
Twist lock Pipe 20" Termination Pipe - 8 pack 7TDVP20/8
10" - 16" Adjustable Termination Pipe - 4 pack 7TDVPA/4
12" - 18" Adjustable Vent Length 7TDVP1218
35" - 64" Adjustable Vent Length 7TDVP3564
8" Vent Pipe - 4 pack 7TDVP8/4
12" Vent Pipe - 4 pack 7TDVP12/4
24" Vent Pipe - 4 pack 7TDVP24/4
36" Vent Pipe 7TDVP36
36" Vent Pipe - 30 pack 7TDVP36/30
48" Vent Pipe 7TDVP48
48" Vent Pipe - 30 pack 7TDVP48/30
5 x 8 to 4 x 7 Reducer 7TDVP58
Twist lock Elbows 45° Elbow for Vertical/Horizontal Offset 7TDVP45
45° Elbow for Vertical Offsets - 8 pack 7TDVP45/8
90° Elbow for Vertical/Horizontal Offset 7TDVP90
90° Elbow for Vertical/Horizontal Offset - 8 pack 7TDVP90/8
Shields and Supports 1" Firestop 7DV1FS
3" Firestop 7DV3FS
1" Attic Insulation Shield 7DV1AIS
Combination Horizontal Offset/Roof Support 7DVCS
NOTE: The Power Vent Kit (7THPDVS) is designed and listed for use
with MHSC Twist lock Direct Vent Systems only.
584E
Venting Components
Telescope vent
2/25/99 djt
10/20/99 twist lock
3/10/10 T-lock
584m
twist lock elbows

15
DV Power Vent System
20302353

DV Power Vent System
16 20302353
MHSC
149 Cleveland Drive • Paris, Kentucky 40361
www.mhsc.com