Terminal des-
ignation
Function
15
Instantaneous heating water heater stage 1 (3 kW)
(contactor control)
16
Mixer 1 OPEN
(primary cooling circuit or external heat source)
17
Mixer 1 CLOSE
(primary cooling circuit or external heat source)
18
Heating circuit pump (direct heating circuit)
19
Cylinder primary pump
20
Immersion heater for DHW cylinder
(contactor control)
21
Instantaneous heating water heater stage 2 (6 kW)
22
not used
23
Mixer 2 OPEN (heating circuit with mixer)
24
Mixer 2 CLOSE (heating circuit with mixer)
25
Circulation pump, heating circuit with mixer
26
—
27
DHW circulation pump
28
Central fault message, zero volt
29
Central fault message, zero volt
30
Natural cooling extension kit control
31
Actuation of external heat source
32
Three-way diverter valve, heating/DHW OPEN
33
Three-way diverter valve, heating/DHW CLOSE
K10
Compressor
K20
Instantaneous heating water heater stage 1 (3 kW)
K30
Instantaneous heating water heater stage 2 (6 kW)
(contactor control)
K32
Primary pump/intermediate circuit pump (type WWC)
Terminals inside the control panel (230 V
∼
)
(cont.)
131
Connection and wiring diagrams
55
92
901
GB
Service
Содержание VITOCAL 300
Страница 19: ...Connection diagram Open CLOSE System version 1 cont 19 Preparing for installation 5592 901 GB...
Страница 22: ...Connection diagram Open CLOSE System version 2 cont 22 Preparing for installation 5592 901 GB...
Страница 66: ...Main menu Information A See page 67 Menu structure overview Information 66 Control unit settings 5592 901 GB...
Страница 137: ...Control PCB 137 Connection and wiring diagrams 5592 901 GB Service...
Страница 140: ...Parts lists cont 140 Parts lists 5592 901 GB...
Страница 141: ...Parts lists cont 141 Parts lists 5592 901 GB Service...
Страница 159: ...159 5592 901 GB...