SAVE VTR 250B SERVICE AND ACCESSORIES INSTALLATIONV1

Accessories
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Fig. 10 Water heater connections
Configuration
1. Go to Service menu
2. Enter password (default 1111)
3. Activate the actuator. Go to Components menu, select Heater menu and select type as Water. Choose actuator
voltage type. Do advanced settings if necessary.
4. Configure connection of the water heater. Go to Service menu. Select Output menu. In next menu select ANALOG
tab. Select the analog output to which the water heater is connected. Example if it is connected to AO3 on the con-
nection board, then select ANALOG OUTPUT 3 and select Y1 Heating from the output type list.
5. Configure frost protection sensor (FPT). Go back to Input menu. Select ANALOG tab. Select the analog input to which
the frost protection sensor is connected. Example if it is connected to AI6 on the connection board, then select ANA-
LOG INPUT 6 and select Frost Protection Temperature Sensor (FPT) from the input type list.
6. Water heater and its components are now configured.
5.3.3 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 125-2 Water heating battery (2 rows) — 5457
• VBC 125-3 Water heating battery (3 rows) — 9839
• 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
• Surface sensor -30-150C (FPT) — 211523
• Transformer 24V — 202692
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