Bosch IDS BOVA20 - Wiring Diagram

Installation Instructions
Bosch IDS BOVA20 & BOVC20 Split System Heat Pump - BTC 761703107 A (12.2023)
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16 Wiring Diagram
Figure 65
SW4
1 2 3 4
ON
SW5
1 2
ON
J2
1
ON
CHECK
SW1
CN31
USB
FORCE
CN10
CN25
CN30
CN11
CN7
CN15
CN20
CN13
M-Smart
HPS
T5
PT
T3
T4
T3L
Th
RV
RV
EEV
CN14
CN16
CN21
CN9
CN12
PEV
PEV
CN17
DSP1
LED1 LED2 LED3
IPM
IPM
W
W
V
V
U
U
7)
Main Board
Main Board
COMP.
COMP.
U
V
W
Y/G
%.
*5
%5
GR/W
BK/V
BR/U
CN3
FAN
FAN
CN1 L1
CN2 L2
Y/G
Power in
Power in
Terminal block
CCH
CCH
CN8
FORCE
PRESS
6s
PRESS
1s
SS
ERPSSERP
s1s1
PRESS
6s
CHECK
WARNING
Detailed
referencemanual instructions
SW1
Wifi setting (reserve)
YELLOW
PURPLE
BLUE
C B Y W
C B Y W
Thermostat
Thermostat
Connections
Connections
USE COPPER
CONDUCTORS ONLY
Check the system parameters
Test mode (Not used)
Forced cooling/heating
(Charge mode)
PFC
PFC
Forced defrosting
P
N
BROWN
BLACK
WHITE
BLUE
BLUE
Note:
1. B terminal to be connected with
themostat (O/B) - heat pump
heating operation,energized for heating.
2. EEV, RV for HP system.
3.B, W signal for HP system.
ORANGE
BLACK
FERRITE
CORE
RED
BK
*
6:
6:
21

ON
OFF
*The factory Default
*
21

6:
6:
ON
OFF
*
-
-
21

ON
OFF
SW5-1
Enter defrost
SW5-2
Qui t defrost
OFF
ON
OFF
ON
Normal
Operating timeis reducedby10%
SW4-2
SW4-3
SW4-4
OFF
ON
Normally cooling/heating
Accelerated cooling/heating
Adaptive capacity output disable
SW4-1
Defrosting
extende
dfor 60 seconds
Normal
ON
OFF
*
*
*
*
*
Adaptive capacity output enable
OFF
ON
OFF
ON
Unused
Must be set at OFF position
J2
J2
*
For 36/60K model
For 24/48K model
L1
L2
Number Point check content
0
Outdoor unit capacity, example: H3=Heat pump 3 ton
1Outdoor unit mode:0-standby,2-cooling,3-heating
2Outdoor unit set comp ressor speed (Hz)
3T3:outdoor coil temp.(°F)
4T4:outdoor ambient temp.(°F)
5T5:compressor discharge temp .(°F)
6Th:compressor suction temp.(°F)
7T3L:(liquid line temp.)(°F)
8Tf:module temp.(°F)
9Pe:evaporating pressure(PSI)
10 Pc:condensing pressure(PSI)
11
Tse target evaporating temp. (only for cooling mode)(°F)
12 Te:evaporating temp.(°F)
13 Tcs target condensing temp (only for heating mode)(°F)
14 Tc:condensing temp.(°F)
15
Target of the compressor discharge superheat
(heating mode only ):Target value (°F)
16 Compressor discharge superheat
(°F)
17 Opening of EEV
18 Outdoor fan speed
19 Compressor current (A)
20 Power AC voltage Input (V)
21 Compressor input dc voltage (V)
22 Continuous running time of the compressor (min)
23 Last fault code
24 Software version
25 Remark"--"
HPSHigh pressure switch
T5 Comp. discharge temp . sensor
PT Pressure transducer
T3 Condensor temp. sensor
T4 Ambient temp. sensor
T3LCondensor outlet temp. sensor
TF Radiator temp. sensor
Th Comp. return temp. sensor
EEVElectric expansive valve
RV Reversing valve
PEVPressure equalizer valve
CCHCrankcase heater
COMP.Compressor
TEMP.Temperature
ON
LED1
GREEN
LED2
RED
LED2
ON
LED2
OFF
LED3
GREEN
Comp. running
FLASH
Standby
OFF
IPM Module Fault
ON
No fault
Fault
ON Power on
OFFPower off
CODE
CODE
Fault description
Description
FAILURE TO FLLOW THIS WARNING COULD RESULT
IN PERSONAL INJURY OR DEATH
E4 Temprature sensor fault (T3,T4,T5,Th,T3L,TF)
F1 High pressure switch protection (HPS)
H8 Pressure transducer fault (PT)
E6 DC fan motor fault
P8 DC fan motor hurricane/typhoon protection
E5 High/Low voltage protection
E9 EEPROM fault
H0 Communication fault in main control chip
L0-L9The IPM module protection(only for analysis)
C3 The coil sensor is seated fault in cooling (T3)
ELECTRIC HAZARD 380 VOLTS DC
ELECTRIC HAZARD 380 VOLTS DC
WAIT 3 MINUTES AFTER DISCONNECTING POWER,THEN
VERIFY DC VOLTAGE LESS THAN 42 VDC AT INVERTER
TEST POINTS P-N.
TEST POINTS P-N.
COMPONENTS MAY STORE A
DANGEROUS ELECTRICAL POTENTIAL OF 380 VOLTS DC.
E7 Compressor discharge sensor is seated fault (T5)
PH Low discharge superheat protection
P1 High pressure (HPS) protection
P5
Condensor coil temperature protection in cooling (T3)
P4 High T5 protection
P0 High module radiator temperature protection (TF)
P3 Compressor over current protection
P2 Low pressure protection in cooling or heating (PT)
H5 5 times (P2) protection in 100 minutes, lockout
AtLAmbient Temperature Limited T4 (heat pump)
┣
Forced operation mode
L Running indication under T3 limited condition
D Running indication under T5 limited condition
PCompression ratio protection limit
F Running indication under TF limited condition
C Running indication under current limited condition
U
Running indication under low voltage limited condition
A Running indication under return oil mode
dF Running indication under defrost mode
Unused
*
Must be set at OFF position
ON
1
OFF
1
SwitchONPosition:
Color upperhalftoshow
switch position is UP.
Switch OFFPosition:
Colorlowerhalf to show
switch position is DOWN.