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• 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 200-2 Water heating battery— 5459
VBC 200-3 Water heating battery — 9841
• VAZ4 24A Actuator 0-10V (S) — 9862
• 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
• Duct sensor -30-70C (SAT) — 211524
• Surface sensor -30-150C (FPT) — 211523
Fig. 12 Water heater connections
Installation and connection
1. Install water heater 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. The frost protection sensor (FPT) should be strapped on a surface on the return water pipe. Connect FPT sensor to
any free analog input.
4. An 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 after water heater. Connect the duct temperature sensor to analog input 2 (AI2) replacing the 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 and then configured as a supply air temperature sensor. However the internal supply air
temperature sensor must be disabled in the control panel first.
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 control signal to the actuator. Go to
Service
menu. Select
Output
menu. In next menu select
ANALOG
tab. Select the analog output to which the control wire of the actuator is connected. Example if it is connected to AO3
on the connection 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. Since a duct temperature sensor replaces internal supply air temperature sensor, it doesn’t need to be re-configured.
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