SystemAir SAVE VTR 250/B - Internal Water Heater

Accessories
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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).
8.3.2 Internal water heater
A water heating battery can be installed inside the unit and connected to water system.
• 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:
• Water coil for SAVE VTR 250/B — 156370
• 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
Installation and connection
1. Remove plug and add the frost protection sensor. Tread seal the sensor.
2. Install water heater in the unit. Connect pipes, 2/3–way valve and actuator.
Important
Do NOT use 24V DC power output from the connection board for valve actuator.
3. Connect actuator (S) to any free analog output.
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