Page 1
Heat Recovery Ventilator Operation Manual
*Leave with Homeowner
SHR 1504 • SHR 1505 R(D) • SHR 2004 • SHR 2005 R(D) • SHR 3005 R • SHR 3205RD
VHR 1404 • VHR 1405 R • VHR 2004 • VHR 2005 R • VHR 704
For use with Models
Page 2
What Are HRVs ?
To understand these products and
their functions, here are a few things
to remember.
Heat Recovery Ventilators (HRVs)
are recommended for colder areas of the country that have longer heating seasons as well as
drier desert areas of the South.
Heat Recovery Ventilators are complete whole
house ventilation systems that incorporate a
supply fan and an exhaust fan in one unit. The
supply fan draws fresh air in from the outside
and the exhaust fan pushes stale contaminated air out. The two air streams are separated
by a heat recovery core which tempers the air, making it the most comfortable solution for a
healthy indoor environment.
For information on how these units can help you save energy and lower heating or cooling costs,
read “How Do They Work?”.
How Do They Work?
Heat Recovery Ventilators (HRVs)
An HRV is designed to be a cost-effective and reliable
way to bring a continuous supply of fresh air into a
home while exhausting an equal amount of contaminated air. If it is properly maintained, an HVR can meet a
home's total ventilation requirements by itself. HRVs
use what is called a “sensible” heat recovery core. This
special aluminum core transfers heat from the exhaust
air stream to the incoming air stream. Fresh incoming
air is tempered by the heat that is transferred from the
outgoing air so you save on energy costs. Fantech
HRVs are equipped with automatic defrost mechanisms
so even if you live in the coldest climates, you can use
your HRV all year long.
Understanding Fantech Model
Numbers
Example 1:
VHR 1 4 0 4 =
Vertical Ports
Heat Recovery Ventilator
Remote Controls
VHR 1 4 0 4
Example 2:
SHR 2 0 0 4 =
S ide Ports
Heat Recovery Ventilator
Remote Controls
SHR 2 0 0 4
FRESH AIR
FROM OUTSIDE
EXHAUST AIR
TO OUTSIDE
EXHAUST AIR
FROM INSIDE
FRESH AIR
TO INSIDE
Port Configurations
Five Port Models feature motorized damper for recirculation mode and defrost. Positive shut off of supply
port when unit is in standby.
Four Port Models provide constant ventilation even in
defrost mode without the need for additional parts.
An exhaust only (fan shut down) defrost strategy is an
effective method at an affordable price.
CFM # PORTS
2
CFM # PORTS
Page 3
OPERATION
A Heat Recovery Ventilator (HRV) is designed to bring fresh air into a building while exhausting an equal amount of stale air. During
the winter months, the incoming cold fresh air is warmed by utilizing the heat recovered from the stale air before it is exhausted to
the outdoors. During summer months when the indoor space is air conditioned, the HRV will help in cooling the incoming fresh air
using the stale air that is being exhausted.
Fantech HRVs are designed to run continously or intermittently, giving the homeowner complete control over their air quality.
Continuous low speed ventilation is recommended, which will help eliminate carbon dioxide, VOCs and other gases as well as freshen
up the home. Intermittent high speed ventilation can be obtained through a variety of optional remote controls found in this manual.
Below are some examples of seasonal operation of an HRV.
Winter:
Humidity control is very important during the winter months. This is when problems will
be most apparent since condensation on the windows will often occur. The colder the
outside temperature, the greater the risk of condensation in the home. The average relative
humidity should be maintained between 30-60% to avoid condensation. Low speed continuous ventilation with high speed override is recommended.
Spring:
Temperatures are more moderate and become warmer each day. To keep the humidity and
temperature uniform, set the dehumidistat higher (if installed). You may also switch the
HRV to standby mode if desired.
Summer:
The air is sometimes hot and humid. To stop the warm humid air from entering, set the
dehumidistat at its highest level. If the EDF5 controller is installed, the air exchanger can
be set to cycle the unit on and off as desired from that wall control. However, continuous
ventilation is recommended.
Fall:
Rain and rapid temperature changes make it difficult to control the internal humidity level
and may result in condensation on the windows. A remote dehumidistat may help give
greater control over the inside environment.
NOTE: Some products may not be exactly as illustrated in the Operation Manual.
Fantech Inc. reserves the right to modify, at any time and without notice, any or all of its products' features, designs, components and
specifications, to maintain their technological leadership position.
3
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MODES OF OPERATION
The switch on the side of the unit is used to toggle between STANDBY, LOW speed and MEDIUM speed modes.
In order to activate HIGH speed, a jumper must be placed between the DEHUM + and DEHUM - contacts.
1. Continuous Ventilation Mode
In this mode of operation, both fans are operating and exchanging air with the outside. The heat recovery ventilator (HRV)
constantly exchanges the air at the rate you select, either at
low or medium speed, and switches to high speed when activated by an optional remote control. The "Low" and "Med" fan
speed selection will cause the unit to operate in continuous
exchange mode at an exchange rate of 35% and 50% maximum
airflow rating respectively. Continuous mode is recommended,
since pollutants are slowly but constantly being generated in
your house.
Air from
Outside
Air to
Outside
2. Intermittent / Standby Mode (SHR(D) / VHR Series of HRVs)
The system is always on standby and operates at high speed
when activated by an optional remote control. "Standby" should
be selected if the user wishes to stop the unit from continuous
exchange. We recommend that the "Standby" mode only be used
if your system is equipped with an optional external control, in
which case, the unit would activate to "High" fan speed, until the
control is satisfied and then return to "Standby" (off).
* no exchange of air
Air from
House
Air to
House
3.Defrost/Recirculation Mode (5 port “R” models)
The automatic defrost cycle for SHR R(D) / VHR R models of
HRVs consists of a damper defrost which allows air to recirculate throughout the unit & home. When the supply air stream
temperature goes below -5°C (23°F), the exhaust fan shuts
down, the supply fan goes to "High" speed, and a damper
closes the supply, opening a 5th collar. The ambient air is then
recirculated through the unit & home for a period of 5 minutes.
The unit will then resume normal operation for a time period of
25 minutes. This damper defrost cycle continues until the supply air stream rises above 0°C (32°F). The recirculation feature
can be obtained with the use of an optional EDF5 control.
Air from
House
Air to
House
4. Defrost/Fan shutdown (4 port models)
The automatic defrost cycle for SHR/VHR models of HRVs consists of a fan shutdown. When the supply air stream temperature goes below -5°C (23°F), the supply fan shuts down and the
exhaust fan goes into "High" speed. Ambient air is passed
through the unit for a period of 5 minutes. The supply fan will
then re-start and run at the presetspeed. The exhaust fan will
also slow down to the preset speed, and the unit will operate in
the run cycle for 25 minutes. This fan shutdown defrost cycle
continues until the supply air
stream rises above 0°C (32°F).
Air from
House
Air to
Outside
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Page 5
OPTIONAL REMOTE CONTROLS
PRACTICAL
TIPS
To avoid window condensation:
• It is not necessary to
change the humidity control
every day. Monitor the
average weekly
temperature or experiment
with various settings until
you find a level that is
comfortable for you. Adjust
the control when needed.
NOTE:
A dehumidistat is ideal for
use in energy efficient
houses where indoor
humidity (during the
heating season) is higher
than outdoor levels. High
humidity is a major cause
of structure damage and
IAQ problems such as mold
and mildew.
2 wire
installation
4 wire
installation
3 wire
installation
2 wire
installation
2 wire
installation
* All controls are low voltage. 18 to 24
gauge wire is recommended.
MDEH1 - The wall mount dehumidistat monitors the humidity level in the area
it is installed. When the humidity level rises above the desired set-point, the
HRV will activate to high speed/override mode. Once the humidity level returns
to desired condition, the unit will return to the normal mode.
MDEH2 - The wall-mounted MDEH2 offers the same features of the MDEH1 plus
additional off/on control for the HRV. Dial illuminates when in override mode.
RTS3 - The RTS3 is designed to provide an intermittent boost to the Heat recovery
ventilator. Pressing the fan control button will energize the HRV system into high
speed from a low or standby mode. The ventilator can be set to continue on high for
20, 40, or 60 minutes by pressing the control button one, two or three times,
respectively. Pressing the button a fourth time will cancel the timing function.
EDF1 - The EDF1 is designed to provide 3 modes of operation to the Heat recovery
ventilator. Pressing the “Push” button once initiates the unit to run at a continuous
low speed of operation (green). Pressing the button twice allows the ventilator to
run for 20 minutes and then turns off for 40 minutes (yellow). Touch the button a
third time and the system will run continuously on high (red). The ventilation system
will stay on the last function selected until it is changed.
RTS2 - The 20-minute remote timer is typically installed in areas where
contaminated such as moisture and odors, are produced. Simply push the
button and the HRV will activate to high speed for 20 minutes. Up to 5
electronic timers can be installed throughout the building at a distance of up to
500 feet (152 meters) from the HRV.
PRACTICAL
TIPS
NOTE:
When an Intellitek control
is installed, the rocker
switch located on the right
hand side of the HRV will
be automatically
deactivated giving the user
complete control from
wherever he/she wishes to
mount the control pad.
NOTE:
The override speed cannot
be set at a fan speed lower
or equal to the normal
operating fan speed. For
example, if the unit is
normally operating at a
medium fan speed, the
override fan speed will be
automatically set to high.
NOTE:
EDF5 model, changing the
override speed will change
default override speed for
other external controls.
EXAMPLES:
If, on the EDF5 control, you
have set the override
control at medium, and
you start an external
remote control (i.e. RTS2),
the unit will run at medium
speed for 20 min.
DIGITAL DISPLAY
Shows Indoor Humidity Level
This control will not read
below 29% RH
OVERRIDE TIMER
When pressed, unit
will provide high
speed ventilation
for one 15,
30 or 60 minute
period.
MAINTENANCE LIGHT
Light comes on when
it’s time to clean
unit.
POWER
On/Off and Reset
MODES
Select Intermittent,
Recirculation or
Continuous
Ventilation Modes
DEHUMIDISTAT CONTROL
(see description on top of this page)
MODE SPEED
Set Unit to Low,
Medium or High
Speed
4 1/2"
(114 mm)
CYCLE CONTROL
Set unit to cycle on
15, 20, or 30 minutes every hour
EDF5
MULTI-FUNCTION
WALL CONTROL
Control multiple functions of your HRV with
one slimline wall control. Two wire connection simplifies installation. Use one EDF5 per
HRV installed.
5 1/8"
(130 mm)
Width = 4 1/2" (110mm)
Height = 5 1/8" (130mm)
Thickness = 5/8" (15mm)
OVERRIDE SPEED
CONTROL
Push to select
override speed of
unit.
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MAINTENANCE
CAUTION MAKE SURE UNIT IS UNPLUGGED BEFORE ATTEMPTING ANY MAINTENANCE WORK
The following components should be inspected regularly and well maintained.
Filters need to be checked regularly
Filters
The filters (2) need to be checked and cleaned every
three months or when they appear dirty. Wash in warm
sudsy water (mild detergent). The filters should be
replaced when they can no longer be cleaned properly.
Heat Recovery Core
The heat recovery core needs to be checked and cleaned every six months. The core can be cleaned using a mild soap and water. Rinse thoroughly.
Handle with care. Hot water and a strong detergent will damage the heat recovery core. It is recommended to clean the core in the summer or when
the temperature is mild. Never clean the heat recovery core during winter.
Clean Core and Filters Every 3-6 Months. Unplug unit before performing any
repairs or maintenance
a) Open access door.
b) Carefully grip ends of core and pull evenly outward. Core may be snug,
but will slide out of the channel.
c) Once removed from the cabinet, remove filters.
d) Wash core in warm soapy water (do not use dishwasher).
The fan - The fan are factory balanced and lubricated for life. They
require no maintenance.
The unit - The inside of the unit should be vacuumed yearly. Be careful not
to damage any of the mechanical components and electrical connections.
The drain pan and drain line - Units with drain lines should have their
line and connection checked regularly.
Outside hoods - The outside hoods need to be checked every season to
make sure there are no leaves or insects blocking the airflow. Check
regularly that there are no pollutants near the intake hood. Make sure
they are clear of any snow accumulation during the winter months.
To Install Clean Core and Filters.
a) First, insert the bottom flange of the core guide into the bot-
tom channel approximately 6mm (1/4").
b) Insert the left or right side flange of the core guide approxi-
mately 6mm (1/4"), followed by the other side.
c) Insert the top flange of the core guide into the top channel
approximately 6mm (1/4").
d) With all four corners in place and the core straight and even,
push hard in the center of the core until the core stops at
the back of the cabinet.
NOTE:
• To prevent electrical shock, check that the
unit is unplugged before performing any
repairs or maintenance.
• A yearly inspection is recommended to
ensure the efficiency and trouble-free use
of your system. Run through the system
and verify the different operating modes.
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Page 7
TROUBLESHOOTING
Problem Causes Solutions
Air is too dry – Dehumidistat control is set too low – Increase the desired level of humidity. Change ventilation mode from
– HRV out of balance – Have contractor balance HRV airflows
Air is too humid – Dehumidistat control is set too high – Reduce the desired level of humidity. Combine this with the use of continu-
– Sudden change in temperature – Wait until outside temperature stabilizes (winter). Heating will also
– Storing too much wood for heating – Store a majority of your wood outside. Even dried, a cord of wood contains
– Dryer vent exhaust is inside home – Make sure the dryer vent is exhausting outside.
– Poor air circulation near windows – Open curtains or blinds.
– HRV out of balance – Have contractor balance HRV airflows
– Well sealed basement door is closed – Open the door or install a grill on the door.
– Failed damper system may be stuck in recirculation
mode
Persistent condensation
on window
Poor Air Flows – 1/4" (6mm) mesh on the outside hoods is plugged – Clean exterior hoods or vents
Supply air feels cold – Poor location of supply grilles, the airflow may irritate
– Improper adjustment of dehumidistat control – Reduce the desired level of humidity. Combine this step with use of
– HRV out of balance – Have contractor balance HRV
– Poor air circulation near windows – Open curtains or blinds.
– Filters plugged – Remove and clean filter
– Core obstructed – Remove and clean core
– Indoor grilles closed or blocked – Check and open grilles
– Inadequate power supply at site – Have electrician check supply voltage
– Ductwork is restricting airflow – Check duct installation
– Improper speed control setting – Increase the speed of the HRV (i.e. change unit control from LOW to MED speed)
– HRV airflow improperly balanced – Have contractor balance HRV airflows
– Ducting has fallen down or been disconnected from HRV – Have contractor reconnect ducting
the occupant
continuous mode to standby.
ous exchange mode.
improve situation.
more than 20 gallons of water.
– Check defrost damper. If damper is always blocking incoming fresh air,
have contractor verify damper system.
continuous exchange mode.
– Locate the grilles high on the walls or under the baseboards, install ceiling
mounted diffuser or grilles so as not to directly spill the supply air on the
occupant (eg. Over a sofa)
– Turn down the HRV supply speed. A small duct heater (1kw) could be used
to temper the supply air
– Placement of furniture or closed doors is restricting the movement of air
in the home
– Outdoor temperature extremely cold – If supply air is ducted into furnace return, the furnace fan may need to run
HRV and/or Ducts frosting up – HRV air flows are improperly balanced – Have HVAC contractor balance the HRV airflows
– Malfunction of the HRV defrost system – Note: minimal frost build-up is expected on cores before unit initiates
Condensation or Ice Build Up in
Insulated Duct to the Outside
Green LED Light Codes on
Control Board
Constant Flash – Everything is in good operations
Light is ON, and not Flashing – Control Board is defective – Replace Control Board
Light is OFF, and not Flashing – No Power is being transmitted to the Control Board – Make sure unit is plugged.
Note: It is best to get the unit checked by a certified HVAC Contractor/Technician.
– Incomplete vapor barrier around insulated duct – Tape and seal all joints
– A hole or tear in outer duct covering – Tape any holes or tears made in the outer duct covering
continuously to distribute ventilation air comfortably
defrost cycle functions
– Ensure that the vapor barrier is completely sealed.
– Transformer may need replacing.
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Page 8
HRV MAINTENANCE CHART
Check and Clean Filters Every 3 months or if dirty
Check Heat Recovery Core Every 6 months
Check Drain Pan and Lines Every 3 months
Vacuum the Inside of the
Annually
Unit
Clean and Un-block Outside
Annually
Hoods
Clean and Inspect Duct
Annually
Work
General Servicing by a
Annually
Qualified Contractor
Date Maintenance PerformedMaintenance Required Recommended Frequency
The Best
Limited Warranty
in the Business
• The heat recovery aluminum core has a
limited lifetime warranty.
• The fans found in all Fantech HRVs require
no lubrication, and are factory balanced to
prevent vibration and promote silent
operation.
• The limited warranty covers normal use.
It does not apply to any defects,
malfunctions or failures as a result of
improper installation, abuse, mishandling,
misapplication, fortuitous occurrence or
any other circumstances outside
Fantech’s control.
• Inappropriate installation or
maintenance may result in the
cancellation of the warranty.
• Any unauthorized work will result in
the cancellation of the warranty.
• Fantech is not responsible for any
incidental or consequential damages
incurred in the use of the ventilation
system.
* Schedule may be altered to meet your own needs. More frequent servicing may be required depending on
the severity of your home's indoor and outdoor environments.
Contractor Telephone Number Date Serviced
• Fantech is not responsible for providing
an authorized service centre near the
purchaser or in the general area.
• Fantech reserves the right to supply
refurbished parts as replacements.
• Transportation, removal and installation
fees are the responsibility of the purchaser.
• The purchaser is responsible to adhering
to all codes in effect in his area.
• The warranty is limited to 5 years on
parts and 7 years on fans from the date
of purchase, including parts replaced
during this time period. If there is no
proof of purchase available, the date
associated with the serial number will be
used for the beginning of the warranty
period.
* This warranty is the exclusive and only
warranty in effect relative to the ventilation
system and all other warranties either
expressed or implied are invalid.
United States
10048 Industrial Blvd.
Lenexa, KS 66215
Phone: 800-747-1762; 913-752-6000
Fax: 800-487-9915; 913-752-6466
8
www.fantech.net; info@fantech.net
Canada
50 Kanalflakt Way,
Bouctouche, NB E4S 3M5
Phone: 800.565.3548; 506.743.9500
Fax: 877.747.8116; 506.743.9600
www.fantech.net; info@fantech.net
Fantech, reserves the right to modify, at any time and without notice,
any or all of its products’ features, designs, components and specifications to maintain their technological leadership position.
Item #:403704
Rev Date: 042710
Page 9
SHR & VHR Series
Heat Recovery Ventilator
IMPORTANT - PLEASE READ THIS MANUAL
BEFORE INSTALLING UNIT
CAUTION - Before installation, careful consideration must be given to how this system
will operate if connected to any other piece of mechanical equipment, i.e. a forced air furnace
or air handler, operating at a higher static pressure. After installation, the compatibility of the
two pieces of equipment must be confirmed by measuring the airflow of the Heat Recovery
Ventilator using the balancing procedure found in this manual.
It is always important to assess how the operation of any HRV may interact with vented com-
bustion equipment (i.e. Gas Furnaces, Oil Furnaces, Wood Stoves, etc.).
NEVER - install a ventilator in a situation where its normal operation, lack of operation or par-
tial failure may result in the backdrafting or improper functioning of vented combustion equipment!!!
Your ventilation system should be installed in conformance with the appropriate provincial or state requirements
or, in the absence of such requirements, with the current edition of the National Building Code, and / or
ASHRAE’s “Good Engineering Practices”.
SHR & VHR Models
SHR 1504 • SHR 1505 R • SHR 2004 • SHR 2005 R • SHR 3005 R • SHR 3205RD
VHR 1404 • VHR 1405 R • VHR 2004 • VHR 2005 R
Installation Manual
Page 10
TABLE OF CONTENTS
DETERMINING YOUR AIRFLOW REQUIREMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
TECHNICAL DATA
SHR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
VHR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
HRV INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
EXTERIOR DUCTING INSTALLATION
Weatherhood Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Installing the ducting to the weatherhoods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
INTERIOR DUCTING INSTALLATION
General Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Installing duct to HRV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Supply & Exhaust Air Grilles Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Ducting 5th port units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
INSTALLATION EXAMPLES
Fully dedicated system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Partially dedicated system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Simplified Installation - Option 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Simplified Installation - Option 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
START UP PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
AIRFLOW BALANCING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Adjusting Airflows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Measuring the airflow using station (grid) method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
LOW VOLTAGE CONTROL SYSTEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
ELECTRICAL CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
HRV MAINTENANCE CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2
Page 11
DETERMINING YOUR AIRFLOW REQUIREMENT
Example for maximum airflow normally required.
HRVs are typically sized to ventilate the whole house at a minimum of 0.35 air changes per hour.
To calculate, simply take the square footage of the house (including basement) and multiply by the
height of the ceiling to get the cubic volume. Then, divide by 60 and multiply by 0.35.
Example: SQFT of House 1100
Basement 1100
Total SQFT 2200
Height of ceiling x 8
Cubic volume 17600
Minutes per hour / 60
Maximum airflow required (CFM) 293
Minimum air changes per hour x 0.35
Minimum airflow required (CFM) 103
* Always consult your local building codes for sizing requirements in your area.
i.e. Local building codes may require more or less air change per hour.
Alternate Method
1 cfm = 0.47189 L/s
1 L/s = 3.6 m3/hr
Room classification Number of rooms CFM (L/s)
Master bedroom x 10 L/s (20 CFM) =
Basement yes or no =
Bedrooms x 5 L/s (10 CFM) =
Living room x 5 L/s (10 CFM) =
Others x 5 L/s (10 CFM) =
Kitchen x 5 L/s (10 CFM) =
Bathroom x 5 L/s (10 CFM) =
Laundry room x 5 L/s (10 CFM) =
Utility room x 5 L/s (10 CFM) =
Total Ventilation Requirements (add last column ) =
if yes add 10 L/s (20 CFM)
if no = 0
CFM Required
3
Page 12
A
B C D
F
E
Fresh Air
From Outside
Stale Air
To Outside
Fresh Air
To Inside
Stale Air
From Inside
3 ft, 3 prong
Power Cord
1/2
II
Drain
TECHNICAL DATA
SHR 1504, SHR 1505R, SHR 2004, SHR 2005R, SHR 3005R & SHR 3205RD
Heat Recovery Ventilators
Dimensions Airflow Path
SHR 1504 SHR 1505 SHR 2004 SHR 2005R SHR 3005R SHR 3205RD
A 56mm (2 1/4") 56mm (2 1/4") 56mm (2 1/4") 56mm (2 1/4") 56mm (2 1/4") 56mm (2 1/4")
B 596mm (23 1/2") 596mm (23 1/2") 707mm (27 7/8") 707mm (27 7/8") 1292mm (50 7/8") 707mm (27 7/8")
C 67mm (2 5/8") 67mm (2 5/8") 67mm (2 5/8") 67mm (2 5/8") 56mm (2 1/4") 71mm (2 3/4")
D 441mm (17 3/8") 441mm (17 3/8") 441mm (17 3/8") 441mm (17 3/8") 441mm (17 3/8") 638mm (25 1/8")
E 413mm (16 1/8") 441mm (17 3/8") 520mm (20 1/2") 520mm (20 1/2") 562mm (22 1/8") 520mm (20 1/2")
Measurements
F 152mm (6") 152mm (6") 152mm (6") 152mm (6") 152mm (6") 203mm (8")
SHR 3005R Unit is larger to accommodate 2 heat recovery cores. Electrical box is inside cabinet.
Fan Performance Performance Data
154
133
Model
Apparent
Sensible
Effectiveness at
0°C (32°F)
SHR 1504 73% @31 L/s (65 CFM) 77% @32 L/s (68 CFM) 72 @31 L/s (65 CFM)
SHR 1505R 73% @31 L/s (65 CFM) 77% @32 L/s (68 CFM) 72 @31 L/s (65 CFM)
SHR 2004 77% @31 L/s (65 CFM) 79% @61 L/s (129 CFM)
SHR 2005R 77% @31 L/s (65 CFM) 81% @59 L/s (126 CFM)
SHR 3005R 92% @55 L/s (117 CFM) 91% @57 L/s (121 CFM)
SHR 3205RD 77% @56 L/s (118 CFM) 79% @58 L/s (123 CFM)
Power
SHR1505R
SHR 3205RD
SHR1504
• Volts 120 VAC
280
320
• Amperage
SHR 1504/1505R 1.3 Amps
SHR 2004/2005R 2.1 Amps
SHR 3005R 2.8 Amps
SHR 3205RD 2.5 Amps
• Single Phase
Apparent
Sensible
Effectiveness at
-25°C (-13°F)
Power
Consumed
Watts
at 0°C (32°F)
108 @31 L/s (65 CFM)
108 @31 L/s (65 CFM)
212 @55 L/s (117 CFM)
136 @56 L/s (118 CFM)
4
Page 13
wolfriAsnoisnemiD
BA
C
D
E
Optional recirculation
duct collar (provided)
with VHR 1405R
& VHR 2005R only
3 ft, 3 prong
Power Cord
1/2
II
Drain
ecnamrofreP naF
VHR1405R
0
0.2
0.4
0.6
0.8
1
1.2
0
50
100
150
200
250
300
400 80 120 160
Airflow (cfm)
AirFlow (L/s)
Static Pressure (in WC)
200 240
190 38 57 76 94 114
VHR2004
VHR2005R
VHR 1404
VHR704
ecnamrofreP naF
TECHNICAL DATA (CONT'D)
VHR 1404, VHR 1405R, VHR 2004 & VHR 2005R
Heat Recovery Ventilators
Dimensions Airflow Path
wolfriAsnoisnemiD
E
D
Optional recirculation
duct collar (provided)
with VHR 1405R
C
BA
& VHR 2005R only
1/2
VHR 1404 VHR 1405R VHR 2004 VHR 2005R
A 604mm (22 3/4") 604mm (22 3/4") 711mm (28") 711mm (28")
B 438mm (17 1/4") 438mm (17 1/4") 438mm (17 1/4") 438mm (17 1/4")
C 413mm (16 1/4") 413mm (16 1/4") 521mm (20 1/2") 521mm (20 1/2")
D 56mm (2 1/4") 56mm (2 1/4") 56mm (2 1/4") 56mm (2 1/4")
Measurements
E 152mm (6") 152mm (6") 152mm (6") 152mm (6")
II
Drain
3 ft, 3 prong
Power Cord
Fan Performance
190 38 57 76 94 114
1.2
1
0.8
0.6
0.4
Static Pressure (in WC)
0.2
0
400 80 120 160
AirFlow (L/s)
VHR1405R
Airflow (cfm)
VHR2004
VHR2005R
300
250
200
150
100
VHR 1404
50
0
200 240
Performance Data
Model
VHR 1404
VHR 1405R
VHR 2004
VHR 2005R
Apparent
Sensible
Effectiveness at
0°C (32°F)
73% @31 L/s (65 CFM) 77% @32 L/s (68 CFM) 72 @31 L/s (65 CFM)
73% @31 L/s (65 CFM) 77% @32 L/s (68 CFM) 72 @31 L/s (65 CFM)
77% @31 L/s (65 CFM) 79% @61 L/s (129 CFM) 108 @31 L/s (65 CFM)
77% @31 L/s (65 CFM) 81% @59 L/s (126 CFM) 108 @31 L/s (65 CFM)
Apparent
Sensible
Effectiveness at
-25°C (-13°F)
Power
Consumed
Watts
at 32°F (0°C)
Power
• Volts 120 VAC
• Amperage
VHR 1404/1405R 1.3 Amps
VHR 2004/2005R 2.1 Amps
• Single Phase
NOTE: Some products may not be exactly as illustrated in the Installation Manual.
Fantech Inc. reserves the right to modify, at any time and without notice, any or all of its products’ features, designs, components
and specifications, to maintain their technological leadership position.
5
Page 14
HRV INSTALLATION
LOCATION
The HRV must be located in a heated space where it will be possible to conveniently service the
unit. Typically the HRV would be located in the mechanical room or an area close to the outside
wall where the weatherhoods will be mounted. If a basement area is not convenient or does not
PRACTICAL TIPS
• Have a nearby power
supply (120 Volts,
60Hz).
• Choose a location which
allows the possibility of
mounting the unit to
supporting beams.
• The unit should be level
in order to allow proper
condensate drainage.
• To minimize noise, do not
install unit in living area.
exist, a utility or laundry room may be used.
Attic installations are not normally recommended due to:
– the complexity of the installation
– freezing conditions in the attic
– difficulty of access for service and cleaning
– no drain access
Connecting appliances to the HRV is not recommended. These include:
– clothes dryer
– range top
– stovetop fan
– central vacuum system
These appliances may cause lint, dust or grease to collect in the HRV, damaging the unit.
NOTE: Connecting any of these type of appliances to the HRV will void your warranty.
MOUNTING
1 Place fastening hooks
on the strapping board
or the floor joists.
Installing Drain Line
Through normal operation and during its defrost mode, the HRV may produce some condensation.
This water should flow into a nearby drain, or be taken away by a condensate pump. The HRV and
all condensate lines must be installed in a space where the temperature is maintained above the
freezing point. A “P” trap should be made in the drain line. This will prevent odors from being
drawn back up into the unit.
1 Install the drain nipple.
2 Attach a hanging chain
(provided) to each 19mm
(3/4") bolt (provided) in the
top 4 corners of the unit
and tighten.
3 Hang the unit by
slipping a link onto the
hanging hooks, making
sure the unit is level.
2 Install the drain hose,
making a “P” trap
6
Page 15
EXTERIOR DUCTING INSTALLATION
WEATHERHOOD LOCATION
• Decide where your intake and exhaust hoods will be located.
Locating the Intake Weatherhood
• Should be located upstream (if there are prevailing winds) from the exhaust outlet
• At a minimum distance of 3m (10') away from dryer vents and furnace exhaust (medium or high efficiency furnaces), driveways, oil
fill pipes, gas meters, or garbage containers
• At a minimum height of 457mm (18") above the ground, or above the level of expected snow accumulation
• At a minimum distance of 1m (3') from the corner of the building
• Do not locate in a garage, attic or crawl space
Locating the Exhaust Weatherhood
• At least 457mm (18") above ground or above the depth of expected snow accumulation
• At least 1m (3') away from the corner of the building
• Not near a gas meter, electric meter or a walkway where fog or ice could create a hazard
• Do not locate in a garage, workshop or other unheated space
INSTALLING THE DUCTING TO THE WEATHERHOODS
A well designed and installed ducting system will allow the HRV to operate at its
maximum efficiency. The inner liner of the flexible insulated duct must be
secured to the sleeve of the weatherhoods (as close to the outside as possible)
and to the appropriate port on the HRV. The insulation should remain full and not
be squished. The outer liner, which acts as a vapor barrier, must be completely
sealed to the outer wall and the HRV using tape and/or caulking. A good bead of
high quality caulking (preferably acoustical sealant) will seal the inner flexible
duct to both the HRV port and the weatherhood prior to securing them.
To minimize air flow restriction, the flexible insulated duct that connects the two
outside weatherhoods to the HRV should be stretched tightly and be as short
as possible.
Twisting or folding the duct will severely restrict air flow.
See “Installation Diagrams” for installation examples.
Model Description
FML 8* 8" Metal Hood (White)
COM 6P Plastic Supply & Exhaust Hoods
COM 6M Metal Supply & Exhaust Hoods
STEPS FOR HOOD INSTALLATION:
1 Using the collar of the out-
side hood, outline the intake
& exhaust hole to be cut. The
holes should be slightly larger than the collar to allow for
the thickness of the insulated
flexible duct. Cut a hole for
both the intake and exhaust
hoods.
2 Pull the insulated flexible
duct through the opening
until it is well extended and
straight. Slide the duct's
inner vinyl sleeve over the
hood collar and secure.
Pull the insulation over the
duct and pull the vapor
barrier over the sleeve.
Secure with duct tape.
* Can be used as supply or exhaust hood
3 Push the hood into the
opening, then attach the
hood to the outside wall
with mounting screws.
Repeat the installation
procedure for both the
Supply and Exhaust hoods.
4 Using a caulking gun, seal
around both hoods to prevent
any leaks.
7
Page 16
INTERIOR DUCTING INSTALLATION
GENERAL TIPS
To maximize airflow through the ductwork system, all ducts should be kept short and have as few bends or elbows as possible. 45º
elbows are preferable to 90º. Use “Y” tees instead of 90º elbows whenever possible.
All duct joints must be fastened with screws or duct sealant and wrapped with aluminium foil duct tape to prevent leakage. Galvanized
ducting from the HRV to the living areas in the house is recommended whenever possible, although flexible ducting can be used in moderation when necessary. To avoid possible noise transfer through the ductwork system, a short length (approximately 300mm, 12") of
nonmetallic flexible insulated duct should be connected between the HRV and the supply/exhaust ductwork system.
The main supply and return lines to/from the HRV must have a diameter of 150mm (6"). Branch lines to the individual rooms may be
as small as 100mm (4"), but 125mm (5") is preferred.
INSTALLING DUCT TO HRV
Collar is equipped with hooks that will prevent flexible duct from slipping. For flex duct
installation, slide flex onto collar and over hooks. Then install a cable tie over flex duct
to prevent leakage between the ducting and collar.
In the case of solid ducting, slide solid duct over collar, screw in place and seal with tape.
SUPPLY AIR GRILLES LOCATION
In homes without a forced air furnace, fresh air should be supplied to all habitable rooms including, bedrooms and living areas. It should
be supplied from high wall or ceiling locations. Grilles that diffuse the air comfortably such as the Fantech metal grilles (MGE) or plastic grilles (CG) are recommended. If the floor is the only option available, then special care should be taken in locating grilles. Areas
such as under baseboard heaters will help to temper the air. In homes with a forced air furnace, you may want to connect the HRV to
the furnace ductwork (see information below).
EXHAUST AIR GRILLES LOCATION
The stale air exhaust system is used to draw air from the points in the house where the worst air quality problems occur. It is recommended that return air ducts be installed in the bathroom, kitchen, and laundry room. Additional return air ducts from strategic locations
(i.e. greenhouse, atrium, swimming pool, sauna, etc.) may be installed. The furnace return duct may also be used to exhaust from. In
this method, the exhaust air is not ducted back from bathrooms, kitchens, etc to the HRV with “dedicated lines”.
DUCTING FIFTH PORT UNITS (R)
Units SHR1505R, SHR2005R, SHR3005R and SHR3205RD have a 5th port on top and units VHR1405R and VHR2005R have a 5th port
on the side. This duct port is for both the defrost and recirculation modes. A motorized damper installed in the port closes during defrost
or recirculation, temporarily blocking the incoming fresh air-stream, allowing the warm air from the house to circulate through the HRV. You
may wish to duct this port to a common room with clean air (living room or dining room), so when the recirculation mode is activated,
household odors from the kitchen, bathroom or basement won’t be introduced into the living spaces of the home environment.
WARNING!
AS PER BUILDING CODES AND INSTALLATION REQUIREMENTS FOR COMBUSTION APPLIANCES: AIR RETURN DUCTS, OR OPENINGS FOR AIR RETURN, SHOULD NOT BE PLACED
IN ENCLOSED SPACES CONTAINING COMBUSTION APPLIANCES THAT ARE SUBJECT TO SPILLAGE.
8
Page 17
INSTALLATION EXAMPLES
Example diagram only - Duct configuration may change depending on model
Fully Dedicated System - RECOMMENDED
(New Construction)
NOTES:
1. Stale air is drawn from key areas of the home (bathroom, kitchen,
laundry room).
2. Fresh air is distributed through habitable rooms in the house (bedrooms, living room).
3. The HRV's airflow must be balanced on site using the procedure
found in section "AIRFLOW BALANCING"
Bedrooms
FEL 4 (4” Miter Elbow)
Exhaust CG 4 (4” Adjustable Grill)
Bathroom
Central Control - optional
Fresh air to living room
Fresh Air
Exhaust Air
3m
HRV
460 mm
9
Page 18
INSTALLATION EXAMPLES (CONT'D)
Example diagram only - Duct configuration may change depending on model
DIRECT CONNECTION of the SUPPLY AIR STREAM to the FURNACE COLD AIR RETURN
(Stale air drawn from key areas of home)
FEL 4 (4” Miter Elbow)
Partially Dedicated System
Bedrooms
NOTES:
1. Furnace blower must operate when ventilation from HRV is required.
The furnace should be set to run continuously or interlocked with HRV.
2. Weatherhood arrangement is for illustrative purposes only. 3m (10')
minimum separation and 460mm (18") above grade is recommended.
3. Due to the differences in pressure between the HRV and the equipment it is being connected to, the HRV's airflow must be balanced on
site, using the procedure found in section “AIRFLOW BALANCING”.
Exhaust CG 4 (4” Adjustable Grill)
Central Control - optional
Bathroom
Return Air
Furnace thermostat
Fresh Air
HRV/Furnace ducting for Partially Dedicated System
* Ductwork layout may differ depending on model
Outside
Stale air coming from different areas of the
house (ie bathroom, kitchen).
Exhaust Air
Air return
HRV
3m
HRV
460 mm
Connection
1 m (3' 3")
min.
recommended
Cold air
return
10
* Unit air flow should be balanced while HRV is on "High" speed and furnace blower is running.
Page 19
INSTALLATION EXAMPLES (CONT'D)
Example diagram only - Duct configuration may change depending on model
DIRECT CONNECTION of both the HRV SUPPLY AIR STREAM and
EXHAUST AIR STREAM to the FURNACE COLD AIR RETURN
Simplified Installation
Option 1
(Return/Return Method)
NOTES:
1. Furnace blower must operate when ventilation from HRV is required.
The furnace should be set to run continuously or interlocked with HRV.
2. A minimum separation of 1m (39") is recommended between the two
direct connections.
3. In order to prevent exhausting any fresh air, the HRV's exhaust air connection should be upstream of the HRV's supply air connection when
ducting to the furnace's cold air return.
4. Weatherhood arrangement is for illustrative purposes only. 3m (10') minimum separation and 460mm (18") above grade is recommended.
5. Due to the differences in pressure between the HRV and the equipment
it is being connected to, the HRV’s airflow should be balanced on site,
using the procedure found in section "AIRFLOW BALANCING".
HRV/Furnace ducting for Simplified Installation - Option 1
* Ductwork layout may differ depending on model
Outside
Stale air coming from different areas of the
house (ie bathroom, kitchen).
* Unit air flow should be balanced while HRV is on "High" speed and furnace blower is running.
Air return
1 m (3' 3")
min.
recommended
Cold air
return
NOTE: In the case of a simplified installation, Option 1
is recommended.
11
Page 20
INSTALLATION EXAMPLES (CONT'D)
Example diagram only - Duct configuration may change depending on model
DIRECT CONNECTION of both the HRV SUPPLY AIR STREAM &
EXHAUST AIR STREAM to the FURNACE COLD AIR RETURN & SUPPLY AIR SIDE
Simplified Installation
Option 2
(Supply/Return Method)
NOTES:
1. Furnace blower must operate when ventilation from HRV is required.
The furnace should be set to run continuously or interlocked with HRV.
2. The exhaust air connection should be upstream of the supply air connection to prevent exhausting any fresh air.
3. Weatherhood arrangement is for illustrative purposes only. 3m (10')
minimum separation and 460mm (18") above grade is recommended.
4. Due to the differences in pressure between the HRV and the equipment it is being connected to, the HRV‘s airflow must be balanced on
site, using the procedure found section "AIRFLOW BALANCING".
HRV/Furnace ducting for Simplified Installation - Option 2
* Ductwork layout may differ depending on model
Outside
Stale air coming from different areas of the
house (ie bathroom, kitchen).
* Unit air flow should be balanced while HRV is on "High" speed and furnace blower is running.
Air return
1 m (3' 3")
min.
recommended
Cold air
return
NOTE: In the case of a simplified installation, Option 1
is recommended.
12
Page 21
START UP PROCEDURE
Every time the unit is plugged in, it will go through a 45 second self diagnostic. During this time, the fresh air fans will not turn on.
The switch on the side of the unit is used to toggle between STANDBY, LOW speed and MEDIUM speed modes.
In order to activate HIGH speed, a jumper must be placed between the DEHUM + and DEHUM - contacts.
Airflow Balancing
WARNING
If the unit’s air flows are not properly balanced…
– The unit’s efficiency may be reduced.
– The unit’s core may become damaged.
– Normal operation of the unit could cause the pressurization or depressurization of your home, which can lead to air leaks or
backdrafting of any combustion appliances.
The balancing procedure consists of measuring the supply air flow and the return air flow to ensure that they are equal. A difference
of up to 10% is considered acceptable. In the cases where the air flow is not exactly the same, it is recommended to have a higher
return air flow to ensure that the temperature of the supply air flow coming from outside is as close to room temperature as possible.
NOTE: For optimal performance, HRV unit should be re-balanced after a major renovation or after the installation of extra grilles or registers.
13
Page 22
AIRFLOW BALANCING (CONT'D)
ADJUSTING AIRFLOWS
A damper is integrated into the Fresh Air to Building collar. This damper replaces the installation of a separate damper
into the Fresh Air to Building ducting line.
The damper-collar is pre-set in the fully opened position. If the procedure requires a reduction in airflow to the fresh air
duct, simply turn positioning knob located on the side of the collar clockwise until desired airflow is obtained. The damper
position can be determined by the orientation of the pointers situated on the side of the damper. The damper is fully open
when the pointers are towards the top of the collar (as shown in picture) and fully closed when they are sideways.
Once procedure is completed, install a piece of tape over positioning knob to avoid any tampering by the home owner.
WARNING! DO NOT TURN POSITIONING KNOB COUNTERCLOCKWISE WHEN DAMPERS ARE FULLY OPENED AS DAMAGE MAY OCCUR TO THE MECHANISM
MEASURING THE AIRFLOW USING STATION (GRID) METHOD
1 Cut hole in duct and insert flow
measuring station. Make sure that the
flow measuring station’s air direction
arrow points in the direction of the
airflow. Secure the flow measuring
station with duct tape.
• To avoid airflow turbulence and incorrect
Minimum
457mm (18")
Measure
here
Measure
here
Minimum
457mm
(18")
2 Before taking the reading, make sure
that the magnehelic gauge is level and
at 0. Refer to the flow measuring
station’s chart to determine your
unit’s airflow velocity.
readings, the airflow velocity should be
measured on a section of steel ducting.
Reading should also be taken at a minimum
distance of 457mm (18") from the unit or
elbow. Measurement should also be made
prior to any transition in the duct work so
entire airflow is measured.
3 Adjust the “Supply Air Out” damper
until you reach the desired velocity.
Follow steps 1-3 to adjust the “Exhaust
Air Out” damper, if needed.
14
Page 23
Low Voltage Control Systems
* Please see instruction manuals for individual controls for proper wiring and set up of control systems.
EDF1
EDF1R
• Press button once for continuous low
speed.
• Pressing the button twice allows the HRV/
ERV to run a continous cycle of 20 minutes on and then standby for 40 minutes.
• Press the button a third time and the sys-
tem will run continuously on high speed.
2-wire
connection
• Use in one central location.
2-wire
connection
EDF2 EDF5
This 3-speed control (Low, Med, High)
provides 2 modes of operation:
• Continuous: Unit will remain ON to
exchange outside air with stale
indoor air.
• Intermittent: Unit will remain on
STANDBY until it is activated by the
integrated Override Timer or
Dehumidistat.
2-wire
connection
This control is designed to provide 3 modes of operation to the Heat Recovery Ventilator.
• Pressing the “Fan” button once initiates the unit to
run at a continuous low speed of operation (green).
• Pressing the button twice allows the HRV to run a
continuous cycle of 20 minutes on and then standby
for 40 minutes (yellow).
• Touch the button a third time and the system will
run in recirculation mode at high speed (red).
The ventilation system will stay on the last function
selected until it is manually changed.
This 3-speed control (Low, Med, High) provides
3 modes of operation:
• Recirculation: Allows air to move gently
throughout the home without exchanging air
to the outside, until needed.
• Continuous: Unit will remain ON to exchange
outside air with stale indoor air.
• Intermittent: Unit will remain on STANDBY until
it is activated by the integrated Cycle control,
2-wire
connection
Override Timer or Dehumidistat.
Also, the Cycle Control will allow the user to
choose the amount of fresh air supplied to the
house: 15, 20 or 30 minutes per hour before
returning to its normal mode of operation.
MDEH1 MDEH2
• Allows occupants to control
the level of indoor humidity.
• When the humidity exceeds
the desired level, the ventilation system operates at HIGH
speed. Once the desired
humidity level is achieved,
2-wire
connection
your system resumes its normal mode of operation.
connection
RTS2 RTS3
• Press button once to activate continuous
mode operation at HIGH speed for 20
minutes. The system then returns to its
normal mode of operation.
• To cancel, simply press the button a second time.
2-wire
connection
2-wire
connection
• Allows occupants to control the level of
indoor humidity.
• On/Off slider switch must be ON for the
HRV to operate. When the switch is OFF,
the HRV cannot be energized by a remote
control, or at the unit itself.
• When the humidity exceeds the desired level,
4-wire
the ventilation system operates at HIGH
speed and the light on the dial will illuminate.
Once the desired humidity level is achieved,
your system resumes its normal mode of
operation.
• Press button once and unit will operate in continuous
mode on HIGH speed for 20 minutes (Green).
• Press button a second time and unit will operate in con-
tinuous mode on HIGH speed for 40 minutes (Yellow).
• Press button a third time and unit will operate in continu-
ous mode on HIGH speed for 60 minutes (Red).
• Press button a fourth time to cancel the timer (LED
turns off).
Notes:
1. Recirculation mode is only available on models with the "R" suffix at the end of the model number.
2. Dehumidifier controls will only work if outdoor humidity levels are lower than indoor humidity levels. Never use the Dehumidistat controls when outdoor temperatures
are above 15 C (59F).
15
Page 24
ELECTRICAL CONNECTIONS
20-minute timer
(up to 5 timers)
Mechanical
Dehumidistat
On/Off
2 wires
Crank Timer
4 wires
or
(1 only)
and /
or
and /
Observe polarity on all accessory controls
where applicable.
EDF1 and EDF1R (not shown)
(not shown)
EDF5 or EDF2
2 wires
Diagnostic
2 wires
LED
FURNACE
INTERLOCK
EDF
+ -
2 wires
Dehumidistat
COM
+ -
TIMER
DEHUM
N.O.
+ -
IN COM
CUR SW
(observe polarity)
RTS3
N.C.
Sensor
3 wires
Air Quality
3 position mode
selection switch
16
- +
U
Custom defrost
mode jumper
selection
* Wiring diagram of complete unit inside of access panel
Page 25
ELECTRICAL CONNECTIONS (CONT'D)
BROWN
RED/WHT
BLUE
CAP2
SUP
BLUE
BLACK
RED
EXH
BROWN
BLACK
BLUE
BLACK
BLK/WHT
GREY
CAP1
RED
ON
ON
J1
OFF
J2
ON
J3
ON
J4
J5
OFF
J6
ON
J7
JUMPER SETTINGS
BLACK RED
WHITE
COM NO
PC
BLACK
SW3
N.O.
N.C.
-+
COMIN
DEHUM
CUR SW
RED
COM
FURNACE
INTERLOCK
-
-+
EDF
TIMER
+
RED
LOW
ORANGE
ORANGE
MOTOR
DAMPER
T.P
BLACK
GREEN
MED
STAND BY
SW1
BLUE
WHT/BLUE
WHT/GREEN
GREEN
WHT/YELLOW
YELLOW
RED
BLUE
BLACK
WHITE
YELLOW
TR1
BROWN
BROWN
GREY
ORANGE
WHITE
BLACK
17
Page 26
ELECTRICAL CONNECTIONS (CONT'D)
ELECTRICAL CONNEC-
Standard Furnace Interlock Wiring
TION TO A FURNACE
Standard Accessory Control Contact
THERMOSTAT
TERMINALS
PRACTICAL TIPS
Caution:
• Never connect a 120 volt AC
circuit to the terminals of the
Accessory Control Contacts.
Only use the low voltage
class 2 circuit of the furnace
blower control.
For a Furnace Connected to a
Cooling System:
• On some newer furnaces and
older thermostats, energizing the R and G terminals at
the furnace has the effect of
energizing the Y at the thermostat and thereby turning
on the cooling system. If you
identify this type of thermostat, you must use the
“Alternate Furnace
Interlock Wiring”.
FURNACE
24-VOLT
TERMINAL BLOCK
TWO WIRE
heating only
FOUR
WIRE
TWO WIRE
heating only
W
R
G
C
Y
FOUR
WIRE
R G
W
Alternate Furnace Interlock Wiring
Alternative Accessory Control Contact
THERMOSTAT
TERMINALS
R G
W
Y
TWO
WIRE
Y
COOLING SYSTEM
HRV
ELECTRONIC BOARD
FURNACE
24-VOLT
TERMINAL BLOCK
18
W
R
G
C
Y
WIRE JOINT
TWO
WIRE
COOLING SYSTEM
HRV
ELECTRONIC BOARD
Page 27
TROUBLESHOOTING
Problem Causes Solutions
Air is too dry – Dehumidistat control is set too low – Increase the desired level of humidity. Change ventilation mode from
– HRV out of balance – Have contractor balance HRV airflows
Air is too humid – Dehumidistat control is set too high – Reduce the desired level of humidity. Combine this with the use of continu-
– Sudden change in temperature – Wait until outside temperature stabilizes (winter). Heating will also
– Storing too much wood for heating – Store a majority of your wood outside. Even dried, a cord of wood contains
– Dryer vent exhaust is inside home – Make sure the dryer vent is exhausting outside.
– Poor air circulation near windows – Open curtains or blinds.
– HRV out of balance – Have contractor balance HRV airflows
– Well sealed basement door is closed – Open the door or install a grill on the door.
– Failed damper system may be stuck in recirculation
mode
Persistent condensation
on window
Poor Air Flows – 1/4" (6mm) mesh on the outside hoods is plugged – Clean exterior hoods or vents
Supply air feels cold – Poor location of supply grilles, the airflow may irritate
– Improper adjustment of dehumidistat control – Reduce the desired level of humidity. Combine this step with use of
– HRV out of balance – Have contractor balance HRV
– Poor air circulation near windows – Open curtains or blinds.
– Filters plugged – Remove and clean filter
– Core obstructed – Remove and clean core
– Indoor grilles closed or blocked – Check and open grilles
– Inadequate power supply at site – Have electrician check supply voltage
– Ductwork is restricting airflow – Check duct installation
– Improper speed control setting – Increase the speed of the HRV (i.e. change unit control from LOW to MED speed)
– HRV airflow improperly balanced – Have contractor balance HRV airflows
– Ducting has fallen down or been disconnected from HRV – Have contractor reconnect ducting
the occupant
continuous mode to standby.
ous exchange mode.
improve situation.
more than 20 gallons of water.
– Check defrost damper. If damper is always blocking incoming fresh air,
have contractor verify damper system.
continuous exchange mode.
– Locate the grilles high on the walls or under the baseboards, install ceiling
mounted diffuser or grilles so as not to directly spill the supply air on the
occupant (eg. Over a sofa)
– Turn down the HRV supply speed. A small duct heater (1kw) could be used
to temper the supply air
– Placement of furniture or closed doors is restricting the movement of air
in the home
– Outdoor temperature extremely cold – If supply air is ducted into furnace return, the furnace fan may need to run
HRV and/or Ducts frosting up – HRV air flows are improperly balanced – Have HVAC contractor balance the HRV airflows
– Malfunction of the HRV defrost system – Note: minimal frost build-up is expected on cores before unit initiates
Condensation or Ice Build Up in
Insulated Duct to the Outside
Green LED Light Codes on
Control Board
Constant Flash – Everything is in good operations
Light is ON, and not Flashing – Control Board is defective – Replace Control Board
Light is OFF, and not Flashing – No Power is being transmitted to the Control Board – Make sure unit is plugged.
Note: It is best to get the unit checked by a certified HVAC Contractor/Technician.
– Incomplete vapor barrier around insulated duct – Tape and seal all joints
– A hole or tear in outer duct covering – Tape any holes or tears made in the outer duct covering
continuously to distribute ventilation air comfortably
defrost cycle functions
– Ensure that the vapor barrier is completely sealed.
– Transformer may need replacing.
19
Page 28
HRV MAINTENANCE CHART
Maintenance Required Recommended Frequency Date Maintenance Performed
Check and Clean Filters Every 3 months or if
dirty
Check Heat Recovery
Core
Check Drain Pan and
Lines
Vacuum the Inside of the
Unit
Clean and Un-block
Outside
Hoods
Clean and Inspect Duct
Work
General Servicing by a
Qualified Contractor
Every 6 months
Every 3 months
Annually
Annually
Annually
Annually
Limited Warranty
• The heat recovery aluminum core has
a lifetime limited warranty..
• The warranty is limited to 5 years on
parts and 7 years on fans from the
date of purchase, including parts
replaced during this time period. If
there is no proof of purchase
available, the date associated with
the serial number will be used for the
beginning of the warranty period.
• The fans found in all Fantech HRVs
require no lubrication, and are factory
balanced to prevent vibration and
promote silent operation.
• The limited warranty covers normal
use. It does not apply to any
defects, malfunctions or failures as
a result of improper installation,
abuse, mishandling, misapplication,
fortuitous occurrence or any other
circumstances outside Fantech’s
control.
• Inappropriate installation or
maintenance may result in the
cancellation of the warranty.
* Schedule may be altered to meet your own needs. More frequent servicing may be required depending on the
severity of your home's indoor and outdoor environments.
Contractor Telephone Number Date Serviced
• Any unauthorized work will result in
the cancellation of the warranty.
• Fantech is not responsible for any
incidental or consequential
damages incurred in the use of the
ventilation system.
• Fantech is not responsible for
providing an authorized service
centre near the purchaser or in the
general area.
• Fantech reserves the right to supply
refurbished parts as replacements.
• Transportation, removal and
installation fees are the responsibility
of the purchaser.
• The purchaser is responsible to
adhering to all codes in effect in his
area.
* This warranty is the exclusive and only
warranty in effect relative to the
ventilation system and all other
warranties either expressed or implied
are invalid.
United States
10048 Industrial Blvd.
Lenexa, KS 66215
Phone: 800-747-1762; 913-752-6000
Fax: 800-487-9915; 913-752-6466
www.fantech.net; info@fantech.net
20
Canada
50 Kanalflakt Way,
Bouctouche, NB E4S 3M5
Phone: 800.565.3548; 506.743.9500
Fax: 877.747.8116; 506.743.9600
www.fantech.net; info@fantech.net
Fantech, reserves the right to modify, at any time and without notice,
any or all of its products’ features, designs, components and specifications to maintain their technological leadership position.
Item #: 401347
Rev Date: 042710
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