Panasonic FV-10VEC2R User manual

CONTENTS
GENERAL SAFETY INFORMATION
DESCRIPTION
UNPACKING
SUPPLIED ACCESSORIES
DIMENSIONS
WIRING DIAGRAM
WIRING METHOD
DUCTWORK
INSTALLATION (WALL MOUNT)
INSTALLATION (CHAIN MOUNT)
START-UP PROCEDURE
2~3
5
OPERATION 14~16
TROUBLESHOOTING 19
MAINTENANCE 17~18
SPECIFICATIONS
PRODUCT SERVICE
READ AND SAVE THESE INSTRUCTIONS
Thank you for purchasing this Panasonic product.
Please read these instructions carefully before attempting to install, operate or service the
Panasonic product. Please carefully read the “GENERAL SAFETY INFORMATION” (P.2~3) of
this manual before use. Failure to comply with instructions could result in personal injury or
property damage. Please explain to users how to operate and maintain the product after
installation, and this booklet should be presented to users.
Please retain this booklet for future reference.
BACK COVER
BACK COVER
6
8~9
6~7
9~12
13
14
4
4
4
Installation and Operating Instructions
Energy Recovery Ventilator
FV-10VEC2RModel No.

2
This symbol is used to alert users not to disassemble the equipment.
When cutting or drilling into wall or ceiling, be careful not to damage electrical wiring
and other hidden utilities.
Canada only: Not to be installed in a ceiling thermally insulated to a value greater than
R40.
Never install the unit in a high humidity space, such as a bathroom, kitchen or laundry
room.
Do not disassemble the unit. It may cause fire or electric shock.
Use this unit only in the manner intended by the manufacturer. If you have any
questions, contact the manufacturer.
Installation work and electrical wiring must be performed by qualified person(s) in
accordance with all applicable codes and standards, including fire-rated construction.
Do not install with a method which is not approved in the instructions.
Ducted fans must always be vented to the outdoors.
Solid state controls may cause harmonic distortion which can cause motor humming
noise. To reduce the risk of fire or electric shock, do not use this unit with any solid-
state control device.
This symbol is used to alert users to a specific operating procedure that must be
followed in order to operate the unit safely.
This symbol is used to alert users to a specific operating procedure that must not be
performed.
This symbol is used to alert users to make sure of grounding when using the
equipment with the grounding terminal.
For Your Safety
Explanation of symbol word panels
To reduce the risk of injury, loss of life, electric shock, fire, malfunction, and damage to
equipment or property, always observe the following safety precautions.
The following symbols are used to classify and describe the type of instructions to be
observed.
The following symbol word panels are used to classify and describe the level of hazard, injury,
and property damage caused when the denotation is disregarded and improper use is
performed.
CAUTION
Denotes a potential hazard that could result in death or
serious injury.
Denotes a hazard that could result in minor injury.
Denotes a hazard that could result in property damage.
WARNING
WARNING
GENERAL SAFETY INFORMATION
NOTICE

Ceiling joist and wall stud must be subjected to static load more than five times the
weight of the product.
The special-purpose or dedicated parts, such as mounting fixtures, must be used if such
parts are provided.
Do not kink the power cord.
The OA duct and EA duct must be connected directly to the outside.
Make certain that the electric service supply voltage is AC 120 V, 60 Hz.
These fans are intended for residential use only.
Do not install the unit where ducts are configured as shown below.
Adapter
Protect the power cord from sharp edges, oil, grease, hot surfaces, chemicals or other
objects.
When the product is to no longer be used, it must not be left in place but removed,
to prevent it from possibly falling.
Follow all local electrical and safety codes, as well as the National Electrical Code (NEC)
and the Occupational Safety and Health Act (OSHA).
Always disconnect the power source before working on or near the fan, motor, fixture
or wiring cover.
For general ventilating use only. Do not use to exhaust hazardous or explosive materials
and vapors.
Sufficient air is needed for proper combustion and exhausting of gases through the
flue (chimney) of fuel burning equipment to prevent backdrafting. Follow the heating
equipment manufacturer’s guideline and safety standards such as those published by
the National Fire Protection Association (NFPA), and the American Society for Heating
Refrigeration and Air Conditioning Engineers (ASHRAE) and the local code authorities.
Excessive bending Successive bending Squeezed duct Bend close to duct adapter
3
Disconnect power by switching off wall switch first, then main switch and unplug the
product before working on unit when replacing the jumper cable with wall switch.
Install the unit in the area where air temperature is above 50 °F (10 °C) to avoid
condensation in unit.
Do not install the unit in the area where the air stream temperature may exceed 104 °F
(40 °C).
The unit must be installed in a mechanical room, basement, or other conditioned space.
CAUTION
GENERAL SAFETY INFORMATION
NOTICE

The Panasonic Energy Recovery Ventilator (ERV) uses 2 blower fans driven by 2 DC motors.
The motor is designed to have an extended service life with reduced energy consumption.
It also incorporates a thermal-cutoff for safety.
The exhaust air (EA) duct includes an electric damper to prevent backdrafting. The outside
air (OA) duct includes an electric damper to prevent backdrafting.
Energy Recovery Introduction: Compared to an HRV (Heat Recovery Ventilator), the ERV can
also transfer humidity and recover energy from that humidity. The ERV can exchange energy
between the stale EA and the “fresh” OA, transferring heat and moisture into the incoming
cold air in a heating climate and pre-cooling and reducing the humidity of the incoming hot
air in a cooling climate. This tempering and treatment of the required ventilation air helps
maintain a fresh environment even when the heating or cooling system is not operating.
1
4
1Wall bracket
<Heating Climate>
Part name Appearance Quantity
Unpack and remove unit carefully from carton.
Refer to the supplied accessories list to verify that all parts are presented.
<Cooling Climate>
Heat&
Moisture
Fresh air Fresh air
Exhaust air
(EA)
Outside air
(OA)
Exhaust air
(EA)
Outside air
(OA)
Stale air
Indoor
Stale air
Indoor
Outdoor Outdoor
Hanger
Hanger
L plate
Installation and
operating instructions
Limited warranty
Plug cover
Screw
(M4X8)
Long screw
(ST4.2X20)
4
4
1
1
12
12
4
DESCRIPTION
SUPPLIED ACCESSORIES
UNPACKING
Heat&
Moisture

Unit:inches(mm)
5
DIMENSIONS
(150) Dia.
5 15/16 Dia.
(353.3)
13 7/8
(347.4)
13 11/16
13/16
(20.8)
12345
35 13/16 (909.6)
28 1/2 (723.6)
3 15/16
(99.2)
678910
1112
13
14
19
20
17 181615
RA
(100) Dia. 3 15/16 Dia.
(151) Dia.
5 15/16 Dia.
OA
(100) Dia. 3 15/16 Dia.
(117.9) 4 11/16
EA
(584.6)
23
8 7/8 (225.6)
EA: Exhaust air
OA: Outside air
SA: Supply air
RA: Return air
Part nameNo. Part nameNo.
Frame cover
Power cord (length 70 7/8 (1800))
EA adapter
EA damper assy.
EA fan assy.
DC motor
Frame body
Maintenance plate
Wiring cover
1
2
3
4
5
6
7
8
9
SA adapter
RA filter
OA filter
RA adapter
OA adapter
Energy recovery core
Plug
OA damper assy.
Center damper assy.
SA fan assy.
Control panel
10
11
12
13
14
15
16
17
18
19
20
SA

6
WIRING DIAGRAM
(1)The HVAC/AHU signal cord, wall switch cord, boost switch cord, wall switch and
boost switch are not supplied.
Note
WIRING METHOD
Jumper cable
(2)The terminal of wall switch has been connected by jumper cable for factory default.
(3) If a wall switch is not used to power down the ERV note that cutting power by
unplugging the unit, and/or opening the frame cover to maintenance, will disallow
the unit to run a power down process; leaving the dampers in the open position.
This could increase the risk of cold air infiltration which may lead to frost forming in
the ERV.
(4) If you do not intend to run the product for more than 24 hours we recommend you
connect product with a wall switch to control the standby and running of the product.

WIRING METHOD
7
1.Open the knock-out hole and remove
maintenance plate and wiring cover. (Fig.1)
4.Insert wires into the corresponding terminals deeply through the ribs. (Fig.1)
Make sure the screw of terminal securely fastens the copper wire and the copper
wire is not exposed.
5.Reinstall the wiring cover and maintenance plate.
If you are not connecting to the HVAC/AHU,
please open knock-out hole for wall switch
cord/boost switch cord connection only. (Fig.1)
Note
CAUTION
The capacity of wall switch, boost switch
should be more than 120 V~3 A to control
the power of the product.
2.Thread wall switch cord, boost switch cord and
HVAC/AHU signal cord (optional) through
conduits respectively and install the conduits
into knock-out holes. (Fig.1)
Wiring cover
Maintenance
plate
Knock-out hole for
HVAC/AHU signal
cord connection
Knock-out hole
for wall switch
cord and boost
switch cord
connection
Fig.1
Rib
Terminal
HVAC/AHU
signal cord
(optional)
Conduit
Wall switch
cord
(optional)
Boost switch
cord
(optional)
Note
Unit: inches (mm)
Wall switch cord/
HVAC/AHU signal cord/
Boost switch cord
Copper wire
1/4 (7)
3 1/2~4 (90~100)
3.Strip insulation cover for each wires as shown below.
Jumper cable
(1)The HVAC/AHU signal cord is optional,
please connect it when you want to control
the HVAC/AHU.
(2) If connecting with HVAC/AHU, the HVAC/AHU
will turn on while ERV turns on.
(3) If connecting with wall switch, please remove
the jumper cable first.

8
1.Mount wall bracket on stud with long screws
(ST4.2x20). (Fig.2)
This method can be used in stud as below.
INSTALLATION (WALL MOUNT)
Unit: inches (mm)
Note
(1)Attach with flanged edge facing outward
and edge without flange facing upward
when mounting wall bracket. (Fig.2)
(2)Choose the mounting hole on wall
bracket according to the distance
between studs.
2.Mount hanger on the back of frame body
with screws (M4X8) and mount L plate on the
two side of frame body with screws (M4X8).
(Fig.3)
24 (609.6)
16 (406.4)
19 (482.6)
Note
(1)When mount hanger , please attach with
the claw facing downward to frame body
that the side with power cord facing
upward.
(2)Choose the mounting hole according to
the distance between studs.
Unit: inches (mm)
A B
24 (609.6)
16 (406.4)
19 (482.6) 17 1/2 (444.5)
14 1/2 (368.3)
22 1/2 (571.5)
4-screws
(M4X8)
Hanger
Claw
Power cord
Fig.3
A
B
Unit: inches (mm)
4-long screws
(ST4.2x20)
Stud
Wall
bracket
Floor
Edge without
flange
>31 1/2 (800)
Fig.2
Stud
Flange
2-screws (M4X8)
L plate

5.Install plug covers into plugs on frame
cover. (Fig.6)
2-long screws
(ST4.2x20)
4.Mount L plate on to stud with long screws
(ST4.2X20). (Fig.5)
3.Hang ERV on to wall bracket.
Make sure the power cord is upward.
(Fig.4)
Fig.5
Unit: inches (mm)
24 (609.6)
16 (406.4)
19 (482.6)
9
4-plug covers
Fig.6
Fig.4
1.Install ducts according to one of three methods as shown below.
Method -Simplified ducted installation (Return method)
Note
DUCTWORK
This method draws return air from the return air duct
of the air furnace and supplies an equal amount of
outside air farther downstream into the return duct.
(Fig.7 & Fig.8)
(1)The ERV unit must be balanced.
(2)It is mandatory that HVAC/AHU signal cord be
connected.
(3)Check local codes and authority having
jurisdiction for acceptance. Fig.7
CAUTION
Power cord
Wall bracket
INSTALLATION (WALL MOUNT)

DUCTWORK
This method draws return air from specific points in the house and supplies an equal
amount of outside air into the return air duct of the air furnace. (Fig.9 & Fig.10)
Return air ducts of ERV should be installed in areas of the home where the poorest indoor
air quality exists (bathroom and kitchen).
The air furnace blower should be running when the ERV is operating to evenly distribute the
outside air throughout the house.
Method -Partially dedicated ducted installation
Note
(1)The ERV unit must be balanced.
(2)It is mandatory that HVAC/AHU signal cord be
connected.
(3)Check local codes and authority having
jurisdiction for acceptance.
Note
(1)Must have 2-3 feet of straight duct run from all duct attachment points on the
ERV. Do not use any elbows or other peripheral pieces inside of 2-3 feet when
attaching duct runs to the ERV.
(2)Unit is normally balanced on high speed with the furnace blower on.
(3)A minimum separation of 40 inches (1 m) is recommended between the two
direct connections.
(4)The exhaust air connection shall be upstream of the supply air connection to
prevent exhausting any fresh air.
(5)The distance between two outdoor hoods please see P.12.
(6)The airflow must be confirmed on site using the balancing procedures found in
P.14. Fig.8
10
36”
Air
furnace
(914 mm)
Min.
Dampers for
balancing
airflows
40" (1 m) Min.
Outdoors
OA
EA
RA
SA
Return
air Return air
Fig.9