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15-min Timer - RT-15M - The 15-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 15 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.
Air Quality Sensor - AQS - The wall mount Air Quality Sensor (AQS) monitors
indoor air quality and activates the override mode when carbon monoxide,
formaldehyde, benzene, volatile organic compounds and other pollutants are
detected. The unit will then return to normal mode once the air pollutants
are reduced to a pr
e-determined lower level.
* This control is not a warning device.
Dehumidistat - MD-4W - The wall mount dehumidistat offers the same
features of the dehumidistat I plus additional off/on control for the HRV.
Dial illuminates when in override mode.
Dehumidistat - MD-2W - 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.
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.
PRACTICAL
TIPS
* All controls are low voltage. 18 to 24
gauge wire is recommended.
OPTIONAL REMOTE CONTROLS
OPERATION (CONT'D)
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
DMFC-REC
DIGITAL MULTI-FUNCTION
WALL CONTROL WITH
RECIRCULATION
Control multiple functions of
your HRV with one slimline
wall control. Two wire connec-
tion simplifies installation.
Use one control per HRV
installed.
OVERRIDE SPEED
CONTROL
Push to select
override speed of
unit.
CYCLE CONTROL
Set unit to cycle on
15, 20, or 30 min-
utes every hour
MODE SPEED
Set Unit to Low,
Medium or High
Speed
OVERRIDE TIMER
When pressed, unit
will provide high
speed ventilation
for one 15,
30 or 60 minute
period.
DIGITAL DISPLAY
Shows Indoor Humidity Level
This control will not read
below 29% RH
DEHUMIDISTAT CONTROL
(see description on top of this page)
MAINTENANCE LIGHT
Light comes on when
it’
s time to clean
unit.
POWER
On/Off and Reset
MODES
Select Intermittent,
Recirculation or
Continuous
V
entilation Modes
OPTIONAL DIGITAL CONTROL
NOTE:
When an digital 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:
DMFC-REC model, changing
the override speed will
change default override
speed for other external
controls.
EXAMPLES:
If on the DMFC-REC control,
you have set the override
control at medium, and you
start an external remote
control, the unit will run at
medium speed for 15 min.
PRACTICAL
TIPS
4 1/2"
(114 mm)
5 1/8"
(130 mm)
Width = 4 1/2" (114mm)
Height = 5 1/8" (130mm)
Thickness = 5/8" (16mm)
* Both digital controls
are the same size