Eev Pcb [4-3] / [4-4] - Viessmann VITOTRONIC 200 Service Instructions Manual

EEV PCB [4-3] / [4-4]
For allocation to heat pump type: See "Overview of
PCBs".
T
S
R
N
230 V/
?
50 Hz
L1
Fig. 77
Modbus: Inverter control
A
Modbus: Connecting cable to the controller and
B
sensor PCB of the indoor unit, terminal X18
Electronic expansion valve
C
D Fan control 1
Fan control 2 (if installed)
E
Low pressure sensor
F
High pressure sensor
G
Suction gas temperature sensor (upstream of com-
H
pressor) (NTC 10 k )
Ω
Air intake temperature sensor (NTC 10 k
K
Hot gas temperature sensor (NTC 10 k
L
A B
+ - + -
J15 J19
J17
J14
J5
)
Ω
)
Ω
PCBs and connection options
D
C
M
1~
J7 J27
Suction gas temperature sensor (downstream of
M
evaporator) (NTC 10 k
Vitocal 200-A/222-A only:
N
Secondary circuit flow temperature sensor
(NTC 10 k )
Ω
Refrigerant circuit controller temperature sensor
O
(NTC 10 k )
Ω
Vitocal 200-A/222-A only:
P
LPG temperature sensor (NTC 10 k
Internal power supply (factory connection)
R
4-way diverter valve
S
Ribbon heater for condensate pan
T
E
J26
P
F
J10
P
G
ϑ
H
ϑ
K
J13 ϑ
L
ϑ
M
ϑ
N
ϑ
J21
O
ϑ
P
)
Ω
)
Ω
307