CFM Corporation PVS-1 User Manual
Power Venting System
CER TIF IED
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Model: PVS-1
for use with
Decorative Gas Appliance Models:
NVC33VN/VP, NVC36VN/VP,
NVC39VN/VP, NVC43VN/VP
INSTALLER/CONSUMER
SAFETY INFORMATION
PLEASE READ THIS MANUAL
BEFORE INSTALLING AND USING
APPLIANCE
WARNING: If the information in
manual is not followed exactly,
or explosion may result
causing prop-
this
a fire
erty damage, personal injury or loss of
life.
FOR YOUR SAFETY
Installation and service must be performed by a qualified installer,
service
agency, or the gas supplier.
Do not store or use gasoline or
flammable vapors and liquids
other
in the
vicinity of this or any other appliance.
FOR YOUR SAFETY
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.
• Immediately call your gas supplier
from your neighbors phone. Follow
the gas supplier’s instructions.
• If you cannot reach your gas supplier,
call the fire department.
• Open windows / Extinguish all flames.
Homeowner’s Installation &
Operating Manual
PLEASE KEEP THIS MANUAL FOR FUTURE REFERENCE
51810 1/06 Rev. 2
Majestic® Fireplaces Power Venting System
Installation Instructions
General information and instructions for the power vent
system model No. PVS-1. NOTE: The PVS-1 will only
work in conjunction with a VN Gas Valve P/N 57588
or VP Gas Valve P/N 57587.
1. This power vent system must be installed by a qualified installer in accordance with all applicable local
codes and with the current installation codes for gas
burning appliances CSA-B149.1 in Canada or ANSI
Z223.1/NFPA 54 in the U.S.A.
Electrical connections and grounding must be in ac
cordance with the Canadian Electrical Code, C22.1
Part 1 and in U.S.A., National Electrical Code ANSI/
NFPA70 and/or local codes where applicable.
2. This device must be installed by a qualified profes
sional installer in accordance with these instructions.
If improperly installed, a hazardous condition such
as an explosion or carbon monoxide poison could
result.
3. The Power Vent System #PVS-1 has been certified
by CSA to be installed as a component part and is
for use only with fireplace models listed in the front
page of this manual. Certification is cancelled if
used with other than listed products.
4. Plan the vent system so that code required distanc
es are maintained from plumbing and wiring.
5. The Power Venter motor shaft must be mounted
horizontally to ensure proper operation of the fan
pressure proving switch and to prevent motor bearing wear.
6. Flue gas temperatures must not exceed 470ºF at
Power Venter inlet. Ambient temperature must not
exceed 104ºF.
7. Disconnect power supply when making wiring con
nections or when working around the fan blade and
motor. Failure to do so may result in severe personal
injury and equipment damage.
8. Make certain the power source is adequate for the
fan motor requirements. Do not add the Power Ven
ter to a circuit where the total load is unknown.
9. This Power Venter System #PVS-1 shall be installed
with Sound Reducer Kit Nos. SR 4 for fireplaces with
a 4” (102 mm) flue collars and SR 5 for fireplaces
with 5” (127 mm) flue collars. See INSTALLATION
RESTRICTIONS Page 5.
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Power Vent System Parts and Description
1. Fan Assembly - comes complete with 6’ (1.8 m)
power cord for plugging into a standard house
receptacle. The system is completely pre-wired and
includes the pressure switch and 24 volt transformer.
2. 24 Volt Wiring Harness - a 40’ (12m) wiring harness
with plug-in connectors. Eliminates costly time consuming electrical installations.
3. Vent Terminal - the device which exhausts flue
gases into the atmosphere.
4. Fan Mounting Bracket - to secure the fan in a vibra
tion-free mode so as to reduce vibration through the
pipes.
5. Flex-Connector - an additional device to reduce
vibration and noise through the pipes. It is mounted
to the negative inlet side of the fan.
6. Approved 4” (102 mm) diameter insulated aluminum
flex liner, 4” (102 mm) diameter B-Vent* or 4” (102
mm) diameter single wall metal vent connector.
7. Assorted clamps, connectors and wall mounting
brackets.
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General Venting Information
Always consult your local codes and authorities, in
the absence of such codes, follow the current installation codes for gas burning appliances CSA-B149.1 in
Canada or ANSI Z223.1/NFPA 54 in the US.
1. Clearance to Combustible Materials:
• 1” (25 mm) for insulated single wall vent or
flexible vent pipe.
• 6” (152 mm) for single wall fan housing.
• 1” (25 mm) for fan motor.
• 1” (25 mm) for B-Vent.*
• 6” (152 mm) for single wall vent or flexible vent
pipe.
* B-Vent can only be used on the negative side of
the power venter - between the appliance and
the power venter - and insulated flexible liner or
single wall vent on the outlet side of the power
venter. To reduce fan noise or condensation,
CFM Corporation recommends all venting pipes
be insulated with a minimum of 1” (25 mm) fiberglass insulation.
2. Total allowable system length is 100’ (30 m) of
straight pipe. Minimum allowable system length is 5’
(1.5 m).
NOTE: Deduct 10’ (3 m) for each 90° elbow and 5’
(1.5 m) for each 45° elbow.
Example: An installation requires 30’ (9 m) of
straight pipe with 45° and three (3) 90° elbow.
Straight pipe 30’ (9 m)
45º Elbow (1) 5’ (1.5 m)
90º Elbow (3) 30’ (9 m)
TOTAL 65’ (19.5 m)
Total equivalent pipe length = 65’ (19.5 m)
2
51810
Majestic® Fireplaces Power Venting System
3. Vent System Termination
Before installing Power Venter, determine location of
vent system termination.
4. Location of the Fan
To keep the noise level to a minimum, the fan should
be located as far from the appliance as possible.
A storage cupboard, or laundry area are preferred
locations. Permanent access for inspection and
servicing must be provided.
5. All portions of the vent system under positive pres
sure during operation (on the outlet side of the
Power Venter) shall be designed and installed so as
to prevent leakage of flue or vent gases into a building.
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General Code Requirements
The exit terminal shall be so arranged that flue gases
are not directed so as to jeopardize the safety of
people, overheat combustible structures or enter
buildings, and that proper clearances are maintained.
Always consult your local codes and authorities. In
the absence of such codes follow the current installation codes for gas burning appliances CSA-B149.1 in
Canada or ANSI Z223.1/NFPA 54 in the US.
Also see Diagram A - Vent Termination Locations.
Power Venter Specifications
Electrical
Motor voltage .................................... 115
Control Circuit Voltage ........................24
Hz ........................................................60
RPM ................................................3000
Watts ...................................................95
Amps ................................................1.26
Thermal Protection ............................Yes
Mechanical
Shaded Pole Motor ...........................Yes
Int. Fan Cooled ................................. yes
Shaft Diameter (inch) ........................313
Bearings .............................. Sleeve Type
51810
3
Majestic® Fireplaces Power Venting System
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
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V
B
INSIDE
CORNER DETAIL
V
A
G
V
V
V
G
G
A
CFM145a
General Venting Information - Termination Location
Canadian Installations1 US Installations
A = Clearance above grade, veranda, porch, 12” (30cm) 12” (30cm)
deck, or balcony
B = Clearance to window or door that may be 6” (15cm) for appliances 6” (15cm) for appliances
opened < 10,000Btuh (3kW), 12” (30cm) < 10,000 Btuh (3kW), 9”
for appliances > 10,000 Btuh (3kW) and (23cm) for appliances > 10,000
< 100,000 Btuh (30kW), 36” (91cm) Btuh (3kW) and < 50,000 Btuh
for appliances > 100,000 Btuh (30kW) (15kW), 12” (30cm) for
appliances > 50,000 Btuh (15kW)
C = Clearance to permanently closed window 12” (305mm) recommended to 12” (305mm) recommended to
prevent window condensation prevent window condensation
D = Vertical clearance to ventilated soffit located
above the terminal within a horizontal 18” (458mm) 18” (458mm)
distance of 2’ (610mm) from the center
line of the terminal
E = Clearance to unventilated soffit 12” (305mm) 12” (305mm)
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’ (91cm) within a height of 15’ (4.6 m)
extended above meter/regulator assembly above the meter/regulator assembly above the meter/regulator assy
I = Clearance to service regulator vent outlet 3’ (91cm) 3’ (91cm)
J = Clearance to nonmechanical air supply inlet 6” (15cm) for appliances < 10,000 6” (15cm) for appliances
to building or the combustion air inlet to any Btuh (3kW), 12” (30cm) for < 10,000 Btuh (3kW), 9”
other appliances appliances > 10,000 Btuh (3kW) and < (23cm) for appliances > 10,000
100,000 Btuh (30kW), 36” (91cm) Btuh (3kW) and < 50,000 Btuh
for appliances > 100,000 Btuh (30kW) (15kW), 12” (30cm) for
appliances > 50,000 Btuh (15kW)
K = Clearance to a mechanical air supply inlet 6’ (1.83m) 3’ (91cm) above if within 10’
(3m) horizontally
L = Clearance above paved sidewalk or paved 7’ (2.13m)† 7’ (2.13m)†
driveway located on public property
M = Clearance under veranda, porch, deck or 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 (2) single family dwellings and
serves both dwellings
‡ only permitted if veranda, porch, deck or balcony is fully open on a minimum two (2) sides beneath the floor:
NOTE: 1. Local codes or regulations may require different clearances.
2. The special venting system used on Direct Vent appliances are certified as part of the appliance, with clearances tested and ap
proved by the listing agency.
4
‡ 12” (30cm)‡
3’ (91cm) within a height of 15’ (4.6m)
2
51810
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