CB HEATER CONNECTION KIT 2 3 PHASEV2

Electric duct heater (control via relay)
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6. After sensor configuration is changed, select the analog input to which the
installed outdoor air temperature sensor (OAT) is connected (for example
AI5) and configure it as Outdoor Air Temp. Sensor (OAT).
1.2 Heater installed in the supply air duct
Installation and connection
1. Install an electric heater (ELH) at least 100 mm distance from the unit in
the supply air duct. A relay (RL) is used to control the heater. Connect relay
to any free digital output on the connection board (CB).
2. Connect the power supply to the electric heater via a relay. A circuit break-
er (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 (SAT) after the electric heater and con-
nect it to any free analog input on the connection board (CB).
Supply air heater configuration
1. Go to Service menu
2. Enter password (default 1111)
3. Set the heater type: Components > Heater > Electrical.
4. Configure connection of the heater. Go to Service menu. Select Output
menu. In next menu select DIGITAL tab. Select the digital output to which
the heater is connected. Example if it is connected to DO3 on the connec-
tion board, then select DIGITAL OUTPUT 3 and select Step Controller
Y1 Heating from the output type list.
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