Fantech SHR 1504, SHR 2004, SHR 1505 R(D), SHR 2005 R(D), SHR 3005 R Operation Manual

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

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

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

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

4

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.

5

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.

6

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.

7

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: [phone]

Fax: [phone]

8

www.fantech.net; [e-mail]

Canada

50 Kanalflakt Way,

Bouctouche, NB E4S 3M5

Phone: [phone]

Fax: [phone]

www.fantech.net; [e-mail]

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

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