Fantech VHR150 Manuel D'installation page 8

14
BALANCING STEPS
Use balancing chart located on the
door of the HRV
STEP #1: Identify the desired airflow using the provided chart. From
the desired airflow (left column) identify the pressure reading
needed by simply following the line. Make sure to set the unit at
the Normal speed before performing the next step.
STEP #2: Measure the pressure reading by connecting a manometer
on the LOW and HIGH pressure ports located on the duct
connection. Refer to Illustration #1. If the pressure reading is
LOWER than the desired value, adjust the balancing dampers by
turning the adjustable arm counter clockwise until the correct
corresponding pressure value is reached. Refer to Illustration #2
Do the same for both the SUPPLY and EXHAUST airflows. If the
pressure reading is HIGHER than desired when the damper is fully
opened, please check the distribution system for any anomalies
that could increase the resistance in the distribution system.
• If the house is tightly sealed, adjusting one airflow
may affect the other airflow as well. It is recommended to check each airflow
again to make sure the value did not change
balancing procedure. Make adjustments as necessary.
• The pressure reading from the duct connection refers to the total pressure
loss from the distribution system. A well designed distribution system should
have a total pressure loss between 0.4" (100Pa) and 0.6" (150Pa). The
pressure reading can therefore be used to troubleshoot distribution system.
If the pressure reading is higher than 0.6" (150Pa), we recommend that you
inspect the system and check for closed grilles, blocked exterior hoods or
twisted flexible duct.
STEP #3: Secure the adjustable arm by tightening the set screw as shown in Illustration #3.
Adjustment lever (in front)
Illustration #2
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BALANCING CHART (example only)
Airflow Normal Speed Reduced Speed
∆In W.G. ∆In W.G.
CFM L/s ∆Pa
Pressure reading Pressure reading
110 52 0.36 91
100 47 0.46 114
90 42 0.55 137
80 38 0.64 161
70 33 0.74 184 0.13
65 31 0.78 195 0.16
60 28 0.83 207 0.19
55 26 0.87 219 0.22
50 24 0.92 230 0.25
HIGH LOW LOW
dramatically during the
SUPPLY
EXHAUST
Illustration #1
Set screw (on top)
Illustration #3
Low Voltage Control Systems
* 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
ECO-Touch® • Our most complete, yet easy to use control system
∆Pa
• 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
32
outage
40
• Maintenance reminder indicator
48
• Error code messages reduce troubleshooting time
55
EDF7 • MODE button provides 3 modes of operations: Ventilation , Recircula-
63
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
HIGH 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
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
• 20/40/60 minute timer with LED light
RTS5
• 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
FEATURES CONNECT TO
W
W
W
W
W
W
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1. Ensure that unit is not
plugged when connecting
the control
2. Recirculation mode is only
available with the "R" suffix
at the end of the model
number.
The wiring connectors
can be removed for
easier connection.
*Maintain polarity
between control
and HRV
(+ → + ; - → -)
+T
-T
+T
-T
D
D
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