Accessories
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43
A duct water cooler is supposed to be installed in supply air duct to provide a cooled down air to the apartment.
• WC — water cooling battery
• SAT — supply air temperature sensor
• S — valve actuator
• 1 — Outdoor air
• 2 — Supply air
• 3 — Extract air
• 4 — Exhaust air
Component/product — Article number:
• CWK 125-3-2,5 Duct cooler,circ — 30021
• RVAZ4 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
Installation and connection
1. Install a duct water cooler in the duct. Connect pipes, 2/3–way valve and actuator.
Important
Do NOT use 24V DC power output from the connection board for valve actuator.
2. Connect actuator (S) to any free analog output.
3. Internal supply air temperature sensor (SAT, default connection AI2 on the main circuit board) must be replaced by a
duct temperature sensor which can be acquired as an accessory. A duct temperature sensor must be installed in the
duct before water heater: Connect duct temperature sensor in a place of internal supply air temperature sensor.
Note:
A duct temperature sensor can be connected to analog inputs 6–7 on the connection board for better
access when the internal supply air temperature sensor is disabled in the control panel.
Fig. 16 Duct cooler connections
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.
211473 | A001
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