Viessmann VITOCAL 300, Installation And Service Instructions Manual

Page: 130 / 160

Sensor des-
ignation Function in heating mode Terminal des-
ignation
F0
F1 Outside temperature 1
Internal X1.16/2.16
X1.15/2.15
F2
F3 Primary flow
Primary return X1.24/2.24
X1.23/2.23
F4
—
X1.22/2.22
F5
F6 Internal
Room temperature 1 (direct heating circuit) X1.21/2.21
X1.14/2.14
F7
—
X1.13/2.13
F8
F9 Heat pump flow
Heat pump return X1.20/2.20
X1.19/2.19
F10
F11 Internal
Boiler water temperature, external heat source
or heating water buffer cylinder (bottom)
X1.12/2.12
X1.11/2.11
F12 Flow, mixer circuit 1: external heat source or
primary cooling circuit
X1.10/2.10
F13 Flow, mixer circuit 2: Heating circuit with mixer X1.9/2.9
F14
F15 Heating water buffer cylinder (top)
Internal X1.8/2.8
X1.7/2.7
F16 Room temperature sensor 2 (heating circuit
with mixer) X1.6/2.6
F17 Natural cooling room temperature sensor X1.5/2.5
F18
F19 N/A
Internal
X1.17/2.17
F20
F21 DHW cylinder (top)
DHW cylinder (bottom) X1.4/2.4
X1.3/2.3
F22 Internal X1.2/2.2
F23
—
X1.1/2.1
Terminals inside the control panel (230 V
∼
)
Terminal des-
ignation Function
1, 2 Frost stat, flow switch (in series)
(for type WWC)
5, 6 Brine pressure switch (for type BWC)
7, 8 Power-OFF conversion kit
14 Secondary pump (integral)
Sensor connections and function
130
Connection and wiring diagrams
55
92
901
GB