Fantech VER150, SER150 Installation Manual
VER150
Energy Recovery Ventilator
Item #: 422728
Rev Date: 2017-11-07
Installation Manual
Your ventilation system should be installed in conformance with the appropriate provincial/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”.
United States
10048 Industrial Blvd., Lenexa, KS, 66215
Tel.: 800.747.1762 • Fax: 800.487.9915
Canada
50 Kanalflakt Way, Bouctouche, NB, E4S 3M5
Tel.: 800.565.3548 • Fax: 877.747.8116
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.
2
Note Warning/
Important
Information Technical
information
Practical tip
note
PLEASE READ THIS MANUAL BEFORE INSTALLING UNIT
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 conrmed by
measuring the airow of the Energy Recovery Ventilator using the balancing procedure found in this manual.
It is always important to assess how the operation of any ERV 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.
fantech
TABLE OF CONTENTS
DETERMINING YOUR AIRFLOW REQUIREMENT ..................................................... 4
INSTALLATION EXAMPLES
Fully dedicated system ................................................................ 5
Partially dedicated system .............................................................. 6
Simplified Installation
Option 1 ...................................................................... 7
Option 2 .......................................................................8
EXTERIOR DUCTING INSTALLATION
Weatherhood Location ................................................................. 9
Installing the ducting to the weatherhood ................................................... 9
INTERIOR DUCTING INSTALLATION
General Tips ....................................................................... 10
Installing duct to ERV ................................................................ 10
Supply & Exhaust Air Grilles Location...................................................... 10
3
ERV INSTALLATION ......................................................................... 11
AIRFLOW ADJUSTMENT & BALANCING
General preparation ................................................................. 13
Adjusting airflow using integrated balancing system ........................................... 13
Balancing steps .................................................................... 14
LOW VOLTAGE CONTROL SYSTEMS ............................................................. 15
WIRING DIAGRAM ......................................................................... 16
TROUBLESHOOTING .........................................................................18
ERV MAINTENANCE CHART....................................................................19
ERV CORE WASHING INSTRUCTIONS ............................................................20
PARTS LIST ...............................................................................21
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4
DETERMINING YOUR AIRFLOW REQUIREMENT
Room Count Method
1 CFM = 0.47 L/s
1 L/s = 2.13 CFM
ASHRAE method
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
Ventilation Air requirements
Floor area Bedrooms
0-1 2-3 4-5 6-7 >7
2
Ft
< 1500 <139 30 14 45 21 60 28 75 35 90 42
1501-3000 139.1-279 45 21 60 28 75 35 90 42 105 50
3001-4500 279.1-418 60 28 75 35 90 45 105 50 120 57
4501-6000 418.1-557 75 35 90 42 105 50 120 57 135 64
6001-7500 557.1-697 90 42 105 50 120 57 135 64 150 71
>7500 >697 105 50 120 57 135 64 150 71 165 78
* ASHRAE 62.2-2010 Table 4.1, Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings.
2
m
CFM L/s CFM L/s CFM L/s CFM L/s CFM L/s
Bathroom: If the ERV is going to provide the required local exhaust ventilation for each bathroom with each a continuous 20 CFM
(10 L/s), this ventilation rate can be considered as part of the whole-building ventilation rate.
fantech
INSTALLATION EXAMPLES
5
Example only – duct configuration may differ depending on the model.
FULLY DEDICATED SYSTEM
BEST FOR NEW CONSTRUCTION
1. Stale air is drawn from key areas of the home requiring local exhaust
(bathroom, kitchen, laundry room).
2. Fresh air is distributed directly to habitable rooms in the house
(bedrooms, living room)
3. The ERV’s airflow must be balanced after installation using the procedure
found in the section “AIRFLOW BALANCING”
ERV ducting for fully Dedicated System
Suggested installation for:
• Hydronic baseboard
• Inoor heating
• Electric baseboard
• Mini split heat pump
Benets: Provides the best
fresh air distribution in the
house; lowest operation cost
since the furnace/air handler
unit is not needed.
Stale air from inside
Outside
Fresh air from
outside
Fresh air to living areas
Stale air to
outside
fantech
6
INSTALLATION EXAMPLES (CONT'D)
DIRECT CONNECTION of the FRESH air to living area to the RETURN PLENUM
of the AIR HANDLER (Stale air drawn from key areas of home)
PARTIALLY DEDICATED SYSTEM (BETTER)
1. In order to provide proper distribution of the fresh air, it is
recommended that the furnace blower be set to run continuously or
interconnected with ERV. See furnace electrical connection on page
17.
2. Stale air is drawn from key areas of the home (bathroom, kitchen,
laundry room).
3. Fresh air is supplied to the return air plenum of the furnace.
4. Due to the difference in pressure between the ERV and the equipment
it is being connected to the ERV’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 installation for:
• Central furnace (air
handling unit or central
air conditioners)
• When ducting fresh
air to living area is not
possible or practical,
i.e. expensive or when
the central AHU will
operate year-round.
Benets: Conditions the
fresh air prior to
distributing it throughout
the house
ERV/ Furnace ducting for Partially Dedicated System
Fresh air from
outside
Motorized Damper
Outside
Stale air to
outside
* Unit airflow should be balanced while ERV is on
“Normal” speed and furnace blower is running.
Stale air from inside
Fresh air
to living
areas
1 m (3' 3")
min.
recommended
Cold air
return
Fantech energy recovery ventilators (ERV) that use a supply fan shutdown for frost
prevention do not include an outdoor air motorized damper. If you are using a simplied
installation, i.e. connecting the ERV supply air duct to a furnace's return air duct, the ERV
must operate continuously. When the ERV is turned off, no warm exhaust air will ow
through the ERV but the furnace's fan will continue to draw in outdoor air directly into the
furnace. If it's cold outside, cold air will be introduced, without re-heating, directly into
the furnace.
If the ERV is installed such that the homeowner may turn off the ERV during the winter, we
recommend installing a motorized damper between the ERV's supply air and the furnace's
return air duct that closes when the ERV is not operating. See wiring diagram (gure 1).
fantech
24 VAC Transformer
24V
120V
COM
ERV Furnace interlock
See page 16.
Figure 1
*Transformer and Damper motor not included
NO
Damper
Motor
INSTALLATION EXAMPLES (CONT'D)
7
DIRECT CONNECTION of both the ERV SUPPLY AIR STREAM and EXHAUST AIR STREAM
to the FURNACE COLD AIR RETURN
SIMPLIFIED INSTALLATION (GOOD)
(RETURN/RETURN METHOD) - OPTION 1
1. Furnace blower must operate when ventilation from ERV is required. The
furnace should be set to run continuously or interlocked with ERV. See
furnace electrical connection on page 17.
2. A minimum separation of 1m (39’’) is recommended between the two
direct connections.
3. In order to prevent exhausting any fresh air, the ERV’s exhaust air connection
should be upstream of the ERV’s supply air connection when ducting to the
furnace’s cold air return.
4. Due to the difference in pressure between the ERV and the equipment it is
being connected to the ERV’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"
ERV/ furnace for Simplified Installation – Option 1
1 m (3' 3") min. recommended
Suggested installation for:
• When bathroom and kitchen
already have local exhaust
system
• May be suitable for
retrotting
Benets: Least expensive
installation type
Stale air from inside
Fresh air from
outside
Outside
Fresh air to
living areas
Stale air to
outside
Fantech energy recovery ventilators (ERV) that use a supply fan shutdown for frost
prevention do not include an outdoor air motorized damper. If you are using a simplied
installation, i.e. connecting the ERV supply air duct to a furnace's return air duct, the ERV
must operate continuously. When the ERV is turned off, no warm exhaust air will ow
through the ERV but the furnace's fan will continue to draw in outdoor air directly into the
furnace. If it's cold outside, cold air will be introduced, without re-heating, directly into
the furnace.
If the ERV is installed such that the homeowner may turn off the ERV during the winter, we
recommend installing a motorized damper between the ERV's supply air and the furnace's
return air duct that closes when the ERV is not operating. See wiring diagram (gure 1).
* Unit airflow should be balanced while ERV is on
“Normal” speed and furnace blower is running.
Motorized
Damper
1 m (3' 3")
min.
recom-
mended
Cold air
return
24 VAC Transformer
24V
120V
COM
ERV Furnace interlock
See page 16.
Figure 1
*Transformer and Damper motor not included
NO
Damper
Motor
fantech
8
Installation examples (Cont'd)
DIRECT CONNECTION of the ERV SUPPLY AIR STREAM to the SUPPLY AIR SIDE on the
FURNACE & EXHAUST AIR STREAM to the FURNACE COLD AIR RETURN
SIMPLIFIED INSTALLATION (GOOD)
OPTION 2
1. Furnace blower must operate when ventilation from ERV is required. The
furnace should be set to run continuously or interlocked with ERV. See
furnace electrical connection on page 17.
2. Due to the differences in pressure between the ERV and the equipment it is
being connected to, the ERV‘s airflow must be balanced on site, using the
procedure found 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"
ERV/Furnace ducting for Simplified Installation - Option 2
1 m (3' 3") min. recommended
* Ductwork layout may differ depending on model
Suggested installation for:
• When bathroom and
kitchen already have local
exhaust system
• May be suitable for
retrotting
Benets: Least expensive
installation type
In the case of a simplified
installation, Option 1 is
recommended.
Outside
Air from inside
Fresh air from
outside
Fresh air to living areas
Stale air to
outside
Fantech energy recovery ventilators (ERV) that use a supply fan shutdown for frost
prevention do not include an outdoor air motorized damper. If you are using a simplied
installation, i.e. connecting the ERV supply air duct to a furnace's return air duct, the ERV
must operate continuously. When the ERV is turned off, no warm exhaust air will ow
through the ERV but the furnace's fan will continue to draw in outdoor air directly into the
furnace. If it's cold outside, cold air will be introduced, without re-heating, directly into
the furnace.
If the ERV is installed such that the homeowner may turn off the ERV during the winter, we
recommend installing a motorized damper between the ERV's supply air and the furnace's
return air duct that closes when the ERV is not operating. See wiring diagram (gure 1).
* Unit air flow should be balanced while ERV is on "Normal" speed and
furnace blower is running.
Motorized
Damper
Cold air
return
24 VAC Transformer
24V
120V
COM
ERV Furnace interlock
See page 16.
Figure 1
*Transformer and Damper motor not included
NO
Motorized
Damper
Damper
Motor
fantech
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