Connections On The Primary Side Type Bw (Brine/Water) - Viessmann Vitocal 300-G BW Installation And Service Instructions Manual

Preparing for installation
Internal components type BWC/WWC
P S R
O P
M
L
N
B
C
P
D
A
E
F
P
G
A Electronic expansion valve (EEV)
B Evaporator
C Low pressure sensor (0 to 15 bar)
D Suction gas temperature sensor
E Compressor
F High pressure sensor (1 to 35 bar)
G Hot gas temperature sensor

Connections on the primary side type BW (brine/water)

5
4
3
20
X Y Z
T
U
V
W
K
H
P
J I
6
P
2
8
7
1
(cont.)
H Condenser
I LPG temperature sensor
J Safety high pressure switch
K Instantaneous heating water heater
(accessories)
L Primary flow temperature sensor
M Primary return temperature sensor
N Primary pump
O Brine pressure switch (accessory)
P Primary return (brine OUT)
R Primary flow (brine IN)
S Safety equipment block with safety
assembly
T Three-way valve (heating/DHW)
U Secondary pump
V Secondary flow temperature sen-
sor
W Secondary return temperature sen-
sor
X Heating water flow
Y DHW cylinder flow
Z DHW cylinder return/heating water
return