92
A
Cylinder air vent valve for internal
coil
B
Cylinder temperature sensor
C
Cylinder drain & fill valve (see fol-
lowing chapter)
D
3-way diverter valve "Heating/DHW
heating"
E
Secondary pump
F
Secondary circuit flow temperature
sensor
G
Secondary circuit return tempera-
ture sensor
H
Instantaneous heating water heater
with high limit safety cut-out
K
Secondary circuit drain & fill valve
L
Internal unit service valve (Schrader
valve; can be used in place of the
external unit service valve for check-
ing pressure and evacuating the
refrigerant circuit; see page 69)
M
Liquid gas temperature sensor (IRT)
N
Secondary circuit temperature sen-
sor upstream of the instantaneous
heating water heater (LWT)
P
Secondary circuit air vent valve
R
Pressure sensor (ICT) for determin-
ing condenser condensation tem-
perature
Cylinder drain & fill valve positions
A
B
C
A
Cylinder drain & fill valve closed
B
Cylinder drain & fill valve open to
drain the internal DHW line
Troubleshooting
Repairs
(cont.)
5600 950 GB
Содержание Vitocal 222-S
Страница 26: ...26 7 8 6 P301 P501 P303 P302 F6 Installation sequence Installing the internal unit cont 5600 950 GB...
Страница 27: ...27 10 9 11 Installation sequence Installing the internal unit cont 5600 950 GB Installation...
Страница 28: ...28 15 2x 16 17 2x 12 14 18 13 X20 Installation sequence Installing the internal unit cont 5600 950 GB...
Страница 29: ...29 2x 4x 6x 4x 22 21 20 19 Installation sequence Installing the internal unit cont 5600 950 GB Installation...
Страница 89: ...89 Opening programming unit 2 2x 1 3 Troubleshooting Repairs 5600 950 GB Service...
Страница 90: ...90 Removing cover from programming unit if necessary 5 4 4x Troubleshooting Repairs cont 5600 950 GB...
Страница 91: ...91 Overview of internal components Internal unit Troubleshooting Repairs cont 5600 950 GB Service...
Страница 142: ...142 5600 950 GB...
Страница 143: ...143 5600 950 GB...