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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 connected. Example if it is connected to DO3 on the connection
board, then select DIGITAL OUTPUT 3 and select Step Controller Y4 Extra Controller from the output type
list.
5. Configure extra controller temperature sensor. Go back to Input menu. Select ANALOG tab. Select the analog input
to which the extra controller temperature sensor is connected. Example if it is connected to AI6 on the connection
board, then select ANALOG INPUT 6 and select Extra Controller Temperature Sensor (ECT) from the input
type list.
9.3.3 Duct water heater
A duct water heating battery is supposed to be installed in supply air duct.
• WH — water heating battery
• FPT — frost protection sensor
• SAT — supply air temperature sensor
• S — actuator for valve
• 1 — Outdoor air
• 2 — Supply air
• 3 — Extract air
• 4 — Exhaust air
Component/product — Article number:
• VBC 160-2 Water heating battery (2 rows) — 5458
• VBC 160-3 Water heating battery (3 rows) — 9840
• VAZ4 24A Actuator 0-10V (S) — 9862
• ZTV 15-0,4 2-way valve — 9829
• ZTV 15-0,6 2-way valve — 6571
• ZTR 15-0,4 valve 3-way — 9670
• ZTR 15-0,6 valve 3-way — 6573
• Duct sensor -30-70C (SAT) — 211524
• Surface sensor -30-150C (FPT) — 211523
• PSS48 Transformer 24V — 204385
Installation and connection
1. Install water heater in the duct. Connect pipes, 2/3–way valve and actuator.
211464 | A001
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