CONTROL PANEL (FUNCTIONS)
The heat recovery unit is equipped with two sensors T1_indoor & T2_outdoor if the unit provided with optional by-pass module.
Sensors
T1 Indoor Sensor - This sensor measures the returned air temperature from the room
T2 Outdoor Sensor - This sensor measures the fresh air temperature from outside
Set point
T3 Room set point temperature
Fans
Exhaust fan, Supply fan
Control Modes
The control mode can be changed by pressing the MODE button (one or multiple times) on the control unit. The
following operational modes can be selected:
FAN
COOL
HEAT
AUTO
VOD
In this mode the unit will operate without checking the T1_returnair and T2_outdoor air sensors.
Fan
The default speed of the fan is medium.If necessary,press FAN button to change fan speed.High, Med and Low fan speeds can be
selected by pressing FAN button.
By-pass Valve
By-pass valve is always closed.
During the summer season the COOL mode either can be manually selected with the remote control or automatically controlled via the
BMS
(Building Management System) inputs.
Fan
The default speed of the fan is medium. If necessary, press FAN button to change fan speed. High, Med and Low fan speeds
can be selected by pressing FAN button.
Bypass damper
In COOL mode the damper valve will be controlled in accordance with T1 return air and T2 outdoor air sensors.
During the winter season the HEAT mode either can be manually selected with the remote control or automatically controlled via the
Fan
The default speed of the fan is medium.If necessary,press FAN button to change fan speed.High, Med and Low fan speeds can be selected by
pressing FAN button.
Bypass damper
In COOL mode the damper valve will be controlled in accordance with T1_return air and T2_outdoor air sensors.
When VOD (Ventilation On Demand) is selected the fan speed is adjusted automatically, can not be controlled with FAN button.
Fan
When VOD (Ventilation on Demand) is selected the fan speed is adjusted in accordance with the 0…10V analog signals received from
By-pass Valve
By-pass valve is always closed.
In the auto mode the control selects automatically, dependent on the outdoor temperature, if it is summer or winter season. In accordance
with the selected season the unit will work in cool or heat mode as described in previous paragraphs.
Mode 1: FAN
Mode 2: COOL
Mode 3: HEAT
Mod 5: VOD
Mod 4: AUTO
BMS
(Building Management System) inputs.
IAQ (indoor Air Quality) sensors.
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