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Verfügbare Sprachen
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| Accessories
• PH — electrical pre-heater
• 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
Component/product — Article number:
• CB 125-0,6 230V/1 Duct heater — 5289
• CB Preheater Connection Kit — 142852
Installation and connection
1. Install electrical pre-heater (ELH) at least 100 mm dis-
tance from the unit in the outdoor air duct. Relay (RL) is
used to control the pre-heater. Connect the relay to
any free digital output on the connection board (CB).
2. Connect pre-heater (ELH) 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 in-
stalled in the circuit.
3. Install a duct temperature sensor (OAT) before the
electrical pre-heater on the outdoor side of the unit
and connect it to any free Analog Input on the connec-
tion board (CB).
Configuration
1. Go to Service menu
2. Enter password (default 1111)
3. Go to Components menu, select Extra Controller menu and set Extra Controller Mode setting as Pre-
heater. Pre-heater setpoint can be set in the same menu. Do other advanced settings if necessary. Read "Installa-
tion and Service" manual for more information.
4. Configure connection of the pre-heater. Go to Service menu. Select Output menu. In next menu select DIGITAL
tab. Select the digital output to which the pre-heater is connected. Example if it is connected to DO3 on the connec-
tion board, then select DIGITAL OUTPUT 3 and select Step Controller Y4 Extra Controller from the output
type list.
5. Configure internal outdoor temperature sensor as extra controller temperature sensor. Go to Service menu. Select
Input menu. Select ANALOG tab. Select the ANALOG INPUT 1 and change its configuration from Outdoor Air Tem-
perature Sensor (OAT) sensor to Extra Controller Temperature Sensor (ECT).
6. After sensor configuration is changed select the Analog Input to which the newly installed duct temperature sensor
(OAT) is connected and configure it as Outdoor Air Temperature Sensor (OAT).
Fig. 11 Pre-heater connections
GB
212024 | A003, rev 29
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