System air Fantech HERO 120H User manual

HERO SERIES
120H • 150H • 200H • 150H-EC • 250H-EC
Fresh Air Appliances - HRV
Installation Manual
Item #: 428486
Rev Date: 2019-04-25
Your ventilation system should be installed in conformance with the appropriate provincial requirements or, in the absence of
such requirements, with the current edition of the National Building Code, and / or ASHRAE’s “Good Engineering Practices”.
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.
Please visit our website www.fantech.net for more detailed technical information.
United States
10048 Industrial Blvd., Lenexa, KS, 66215
Tel.: [phone] • Fax: [phone]
Canada
50 Kanalflakt Way, Bouctouche, NB, E4S 3M5
Tel.: [phone] • Fax: [phone]

2
Note Warning/
Important
note
Information Technical
information Practical tip
PLEASE READ AND SAVE THESE INSTRUCTIONS
For residential use only
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 conrmed by measuring the airow 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 combustion equipment (i.e., Gas Furnaces, Oil
Furnaces, Wood Stoves, etc.)
Products are designed and manufactured to provide reliable performance, but they are not guaranteed to be 100% free of defects.
Even reliable products will experience occasional failures, and this possibility should be recognized by the user. If these products are
used in a life support ventilation system where failure could result in loss or injury, the user should provide adequate back-up ventilation,
supplementary natural ventilation or failure alarm system, or acknowledge willingness to accept the risk of such loss or injury.
Your ventilation system should be installed in accordance with the local building code that is in effect, in absence of such requirements, it
is recommenced to check with local authorities having jurisdiction in your area prior to installing this product.
The MERV8 supply lter provided with the unit is intended for areas that it is required. In most cases the MERV8 supply lter is not
required and it becomes optional at the home owner’s discretion. Installing the MERV8 supply lter or other MERV lter options will affect
the maximum airow of the unit, please refer to product documentation for more information.
Technical data was obtained from published results of test relating to CSA C439 Standards. This data was optained without the use of
the MERV8 supply lter.

3
TABLE OF CONTENTS
INSTALLATION TYPES
HRV ducting for fully Dedicated System .................................................... 4
HRV/Furnace ducting for Partially Dedicated System.............................................4
HRV/furnace for Simplified Installation ...................................................... 4
INSTALLING THE OUTDOOR VENTS
Recommended Installation .............................................................. 5
Installing the vents ................................................................... 5
DUCT INSTALLATION
Connecting the Ducts to the HRV ......................................................... 6
Supply Air Grilles Location .............................................................. 6
Exhaust Air Grille’s Location ............................................................. 6
Connecting the Drain ...................................................................6
MOUNTING OPTIONS
Wall Mouting Bracket Installation ......................................................... 7
Chain Mount Installation................................................................ 7
WALL CONTROLS ............................................................................8
BALANCING
Entering Balancing Mode ............................................................... 9
Balancing steps ..................................................................... 9
WIRING DIAGRAM ......................................................................... 10
TROUBLESHOOTING .........................................................................13
FILTER LOCATION ...........................................................................14
HRV MAINTENANCE CHART ...................................................................14
PARTS LIST ...............................................................................15

4
INSTALLATION TYPES
Example only – duct configuration may differ depending on the model.
1. Stale air is drawn from areas requiring
local exhaust (bathroom, kitchen, laundry
room).
2. Fresh air is distributed to habitable rooms
(bedrooms, living room)
3. The HRV’s airflow must be balanced after
installation using the procedure found in
the section “AIRFLOW BALANCING.”
Suggested for:
• Hydronic baseboard
• In oor heating
• Electric baseboard
• Mini split heat pump
Benets:
Provides the best fresh air distribution in
the house; lowest operation cost since the
furnace/air handler unit is not needed.
1. The furnace blower is set to run
continuously or interconnected with HRV
for proper fresh air distribution. See
furnace electrical connection on page 12.
2. Stale air is drawn from areas requiring
local exhaust (bathroom, kitchen, laundry
room).
3. Fresh air is supplied to the return air
plenum of the furnace.
4. Due to the difference in pressure, HRV's
airflow must be balanced on site using the
procedure found in the section “AIRFLOW
BALANCING.”
* In the case of a multi-zone system, please
contact Fantech customer service prior to
installing any installation type requiring the use
of the furnace interlock
Suggested for:
• Central furnace
• When ducting fresh air to living area is
not possible or practical
Benets:
Conditions the fresh air prior to distributing
it throughout the house
1. The furnace blower is set to run
continuously or interconnected with HRV
for proper fresh air distribution. See
furnace electrical connection on page 12.
2. A minimum separation of 1m (39’’) is
recommended between the two direct
connections.
3. The HRV’s exhaust air connection should be
upstream of the HRV’s supply air
connection to prevent exhausting any fresh
air.
4. Due to the difference in pressure, HRV's
airflow must be balanced on site using the
procedure found in the section “AIRFLOW
BALANCING.”
* In the case of a multi-zone system, please
contact Fantech customer service prior to
installing any installation type requiring the use
of the furnace interlock"
Suggested for:
• When bathroom and kitchen already have
local exhaust system
• May be suitable for retrofitting
Benets:
Least expensive installation type
HRV DUCTING FOR FULLY
DEDICATED SYSTEM
HRV/FURNACE DUCTING FOR
PARTIALLY DEDICATED SYSTEM
HRV/FURNACE FOR
SIMPLIFIED INSTALLATION
BEST BETTER GOOD
Make sure the HRV is
capable of meeting the
required airow rate.

5
INSTALLING THE OUTDOOR VENTS
RECOMMENDED INSTALLATION
INSTALLING THE VENTS
18"
(460mm)
36"
(1m)
3'
(900mm)
min. 36"
(1m)
Intake
• Should be located upstream of prevailing
winds from exhaust
• At a minimum of 900 mm (3') away from
dryer vents and furnace exhaust (medium
or high efficiency furnaces), driveways, oil
fill pipes, gas meters, or garbage
containers.
• Do not locate in the garage, attic, crawl
space, or underneath deck.
Locating the Exhaust Weatherhood
• 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
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 hood
(as close to the outside as possible) and to
the appropriate duct connection on the HRV.
• The insulation should remain full and not
crushed.
1. Cut hole between wall studs 3. Secure vent with proper screws
4. Seal using outdoor rated caulking 5. Attach insulated duct from inside and tape
2. Insert vent
• 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 duct
connection and the hood prior to securing
them.
• To minimize airflow 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 airflow.

6
DUCT INSTALLATION
CONNECTING THE DUCTS TO THE HRV
STALE AIR
FROM HOME
EXHAUST TO
OUTDOOR HOOD FRESH AIR
TO HOME
FRESH OUTDOOR
AIR INTAKE • Ducts should be kept short and have as
few bends or elbows as possible.
• 45º elbows are preferable to 90º.
• Use “Y“ ducts instead of “T” ducts
whenever possible.
• All duct joints must be fastened with
screws or duct sealant and wrapped
with aluminum foil duct tape to prevent
leakage.
• Galvanized ducting from the HRV
to the living areas in the house is
recommended whenever possible.
• To reduce noise a short length
(approximately 300mm, 12’’) of
nonmetallic exible insulated duct should
be connected between the HRV and the
supply/exhaust ductwork system.
• The main supply and return line to/from
the HRV must have the same diameter
as the duct connection or larger.
• Branch lines to the individual rooms may
be as small as 100mm (4’’).
INSTALLING DUCT TO HRV
Flexible Duct: Slide exible ducting onto duct connection and afx with cable tie.
Solid Ducting: slide duct over duct connection, screw in place and seal.
SUPPLY AIR GRILLES LOCATION
Without a forced air furnace: fresh air should be supplied to all habitable rooms
from high wall or ceiling locations. Grilles that diffuse the air comfortably are
recommended.
With a forced air furnace: Connect to the furnace ductwork.
EXHAUST AIR GRILLE’S LOCATION
Draw stale air from the points where the worst air quality problems occur: bathroom,
kitchen, and laundry room. Additional return air ducts from strategic locations may
be installed. The furnace return duct may also be used to exhaust from.
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.
Install the drain hose making a
"P" trap, secure the condensate
line drain to HRV by sliding into
connection. Fill the condensate line
with water.
INSTALLING
THE DRAIN
Do not handle unit by
the collars / collar
openings to avoid
damaging the collars
& foam insulation.

7
MOUNTING OPTIONS
LOCATION
• Must be located in a conditioned space
where it will be possible to conveniently
service the unit.
• Typically located close to the outside wall
where the hoods will be mounted.
• A utility room when basement is not
possible.
Attic installation must meet the following
conditions:
• Attic temperature must be above
freezing conditions at all times and
for best performance should be
12°C (54 °F).
• The attic is easily accessible for
equipment maintenance and inspection.
WALL MOUTING BRACKET INSTALLATION
CHAIN MOUNT INSTALLATION - OPTIONAL
When wall mount is not convenient.
Hanging chain and 10-24 screws provided.
Install a spring on each chain as shown
to support the unit's weight and absorb
vibrations.
Safety screws
(included)
16” (406mm)
DO NOT
Connecting appliances to the HRV is not
recommended. These include:
• Clothes dryer
• Range top
• Stovetop fan
• Central vacuum system
• Bathroom exhaust fans unless they are
specically designed for this purpose
• These appliances may cause lint, dust or
grease to collect in the HRV, damaging
the unit.
Connecting any of these
types of appliances to
the HRV will void your
warranty.

8
WALL CONTROLS
AUXILIARY CONTROL – These controls can be paired
RTS2* • 20- minute timer with LED light
• Boosts system to high speed with the touch of a button
• Up to 5 can be used in one system
• Use in bathroom, kitchen, laundry room
RTS5 • 20/40/60 minute timer with LED light
• Boosts system to high speed with the touch of a button
• Up to 5 can be used in one system
• Use in bathroom, kitchen, laundry room
MDEH1 • Rotary dial Dehumidistat
• Multiple units can be used
• We recommend setting the relative humidity above 80% during the summer
* Please see instruction manuals for individual controls for proper wiring and set up of control systems.
CENTRAL CONTROLS
These control options can only be used individually.
CONTROLS FEATURES CONNECT TO
ECO-Touch® • Our most complete, yet easy-to-use control system
• Sleek design with backlight touchscreen LCD
• ECO mode selects the best operating mode and speed for the season,
minimizing energy use associated with ventilation
• Set preferred indoor relative humidity range and ventilation mode for day
and night conditions
• No battery to replace, all programmed settings are retained during power
outages
• Maintenance reminder indicator
• Error code messages reduce troubleshooting time
EDF7 • MODE button provides 3 modes of operations: Ventilation , Recircula-
tion and Standby
• User selected fan speed: Reduced, Medium, Normal and 20 minutes
per hour
• AUTO setting allows the homeowner to deactivate the dehumidistat
• When the humidity exceeds the desired setpoint, the ventilation sys-
tem operates at normal speed
• Once the desired humidity level is achieved, your ventilation system
resumes to its previous mode of operation.
EDF1 / EDF1R • Press button once for continuous Reduced speed
• Press button twice and the unit will cycle 20 minutes ON/ 40 minutes
OFF and repeat
• EDF1 – Press button a third time and the system will run continuously
on HIGH speed
• EDF1R –Press button a third time and the system will run recirculation
on HIGH speed.
1. Ensure that unit is not
plugged when connecting
the control
2. Recirculation mode is only
available with the “R” sufx
at the end of the model
number.
The wiring connectors
can be removed for
easier connection.
*Maintain polarity
between control
and HRV
(+ →+ ; - →-)
W
W
W
W
W
W
+T
-T
D
D
+T
-T

9
BALANCING
Balancing must be completed using the Fantech ECO-Touch®Programmable Touch Screen Wall Control
ENTERING BALANCING
MODE
In the options menu during
the initial 5 second countdown
sequence, long press on "ECO"
area for 5 seconds to enter
basic balancing mode.
The supply and exhaust fans are
adjusted on high speed only and
the offsets are proportionally
applied to the medium and low
speed automatically.
AUTO MANUAL
OPTIONS
AUTO MANUAL
OPTIONS
NEXT
Supply
manometer
High
High
Low Low Exhaust
manometer
STAGE 1
(ADJUST LEVEL OF EXHAUST FAN IN HIGH SPEED):
• In this step, balance exhaust fan and measure airow on the
exhaust air side
• Pressing on "up" or "down" will adjust the fan speed in increments
of 1%.
• Once the desired exhaust airow is reached, press on "next" and
move on to the next stage.
STAGE 2
(BALANCE SUPPLY FAN ONLY IN HIGH SPEED):
• In this step, balance supply fan and measure airow on the supply
air side
• Pressing on "up" or "down" will adjust the fan speed in increments
of 1%.
• Once happy with the outcome, press on "next" to complete
balancing
• The supply and exhaust offset values will be proportionally applied
to low and medium speed as well.
AUTO MANUAL
OPTIONS
NEXT
0 %
ADJUST
AUTO MANUAL
OPTIONS
NEXT
0 %
BALANCE

10
WIRING DIAGRAM - HERO 120H, 150H, 200H
LOW SPEEDS
90V75V
J4J5J6