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Accessories
Note:
A duct temperature sensor can be connected to analog inputs 6–7 on the connection board for better
access and then configured as a supply air temperature sensor. However the internal supply air
temperature sensor must be disabled in the control panel first.
Configuration
1. Go to Service menu
2. Enter password (default 1111)
3. Activate the actuator. Go to Components menu, select Cooler menu and select type as Water. Choose actuator
voltage type. Do advanced settings if necessary.
4. Configure control signal to the actuator. Go to Service menu. Select Output menu. In next menu select ANALOG
tab. Select the analog output to which the control wire of the actuator is connected. Example if it is connected to AO3
on the connection board, then select ANALOG OUTPUT 3 and select Y3 Cooling from the output type list.
5. Since a duct temperature sensor replaces internal supply air temperature sensor, it doesn’t need to be re-configured.
Note:
A duct temperature sensor can be connected to analog inputs 6–7 on the connection board for better
access and then configured as a supply air temperature sensor. However the internal supply air
temperature sensor must be disabled in the control panel first.
6. Duct cooler and its components are now configured.
5.3.4 Ground heat exchanger
The ground heat exchanger can be connected to an outdoor air duct to heat the air and prevent the heat exchanger
from icing up, or to cool the air to reduce the need for cooling.
• GHT — Ground heat exchanger
• ECT — extra controller temperature sensor
• OAT — outdoor air duct temperature sensor
• RL — relay
• 1 — Outdoor air
• 2 — Supply air
• 3 — Extract air
• 4 — Exhaust air
Installation and connection
1. Install the ground heat exchanger (GE) at least 100 mm
distance from the unit in the outdoor air duct. Relay
(RL) is used to control the ground heat exchanger. Con-
nect the relay to any free digital output on the connec-
tion board (CB).
2. Connect the ground heat exchanger (GE) and the
power supply to the relay (RL). A circuit breaker (BRK)
is not included in the package and must be ordered
separately. It must be installed in the circuit.
3. Install a duct temperature sensor (OAT) before the
ground heat exchanger in the outdoor air duct and con-
nect it to any free analog input on the connection board
(CB).
Configuration
1. Go to Service menu.
2. Enter password (default 1111)
3. Go to Components > Extra Controller > Extra Controller Mode menu and select GEO Exchanger option.
If necessary change settings in the menus Configure preheater settings and Configure precooler
settings.
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