SAVE VSR 300 500 SERVICE AND ACCESSORIESV01 1 12 0

Accessories
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7.3.1.2 Heater installed in the supply air duct
Connections
1. Install an electric heater (ELH) at least 100 mm distance
from the unit in the supply air duct. A relay (RL) is used
to control the heater. Connect relay to any free digital
output on the connection board (CB).
2. Connect the power supply to the electric heater via a
relay. 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 (SAT) after the elec-
tric heater and connect it to any free analog input on
the connection board (CB).
Supply air heater configuration
1. Go to Service menu
2. Enter password (default 1111)
3. Set the heater type: Components —> Extra Controller —>Extra Controller Mode —> Heating.
4. Configure connection of the heater. Go to Service menu. Select Output menu. In next menu select DIGITAL tab.
Select the digital output to which the heater is 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. Deactivate the internal supply air sensor: Service —> Input —> ANALOG —> ANALOG INPUT 1 —> Supply Air
Temp. Sensor (SAT) —> Inactive Input.
6. After sensor configuration is changed, select the analog input to which the installed supply air temperature sensor
(SAT) is connected (for example AI5) and configure it as Supply Air Temp. Sensor (SAT).
7.3.2 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:
• RVAZ4 24A Actuator 0-10V (S) — 9862
• Duct sensor -30-70C (SAT) — 211524
• Surface sensor -30-150C (FPT) — 211523
VSR 300:
VBC 160-2 Water heating battery— 5458
VBC 160-3 Water heating battery — 9840
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
VSR 500:
VBC 200-2 Water heating battery— 5459
VBC 200-3 Water heating battery — 9841
ZTV 15-0,6 2-way valve — 6571
ZTV 15-1,0 2-way valve — 9823
ZTR 15-0,6 valve 3-way — 6573
ZTR 15-1,0 valve 3-way — 9672
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