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Installation Instructions
Bosch IDS BOVB20 Split System Heat Pump - BTC 761701316 C (02.2022)
17 Wiring Diagram
Figure 74
SW4
1 2 3 4
ON
SW5
1 2
ON
J2
1
ON
CHECK
SW1
CN31
USB
FORCE
CN10
CN25
CN30
CN7
CN15
CN20
CN13
HPS
16023000008901
T5
PT
T3
T4
T3L
Th
RV
EEV
CN14
CN16
CN21
CN9
CN12
PEV
CN17
DSP1
LED1
LED2
LED3
IPM
TF
Main Board
GR/W
BR/V
BK/U
CN3
FAN
CN1 L1
CN2 L2
Y/G
Y/G
Y/G
Power in
Terminal block
CCH
CN8
FORCE
PRESS
6s
PRESS
1s
SS
ERPSSERP
s1s1
PRESS
6s
CHECK
Detailed
reference manual instructions
SW1
Wifi setting(reserve)
YELLOW
WHITE
BLUE
C B Y W
To Thermostat
and Air Handler
USE COPPER
CONDUCTORS ONLY
Check the system parameters
Test mode(Not used)
Forced cooling/heating
(Charge mode)
PFC
Forced defrosting
P
N
BROWN
BLACK
WHITE
BLUE
Note:
1.B terminal to be connected with
themostat(O/B) wiring heat pump
heating operating,energized for heating.
2.EEV、RV for HP system.
3.B、W signal for HP system.
ORANGE
RED
BK
*
SW5
ON
12
ON
OFF
*The factory Default
*
ON
1234
SW4
ON
OFF
*
J2
ON
1
ON
OFF
SW5-1
Enter defrost
SW5-2
Quit defrost
OFF
ON
OFF
ON
Normal
SW4-2
SW4-3
SW4-4
OFF
ON
SW4-1
Normal
ON
OFF
*
*
*
*
*
OFF
ON
OFF
ON
Unused
J2
*
For 36/60K model
For 24/48K model
M-Smart
Must be set at OFF position
Unused
Must be set at OFF position
Adaptive capacity output disable
Adaptive capacity output enable
Normally cooling/heating
Accelerated cooling/heating
Operating time is reduce 10%
Defrosting extended for 60 seconds
CN11
*
Blinking LED
Solid on
Good signal strength
Weak signal strength
Cellular LED(amber)
Antenna mounted on
the outside of the ODU
Diagnostic Check: After holding down the factory button (3-5 sec),
press Connect button to run full diagnostics.If there are any faults
on the Gateway, the Fault LED will flash accordingly.
Gateway
Antenna
Gateway light indications and descriptions
L1
L2
Number Checkpoint Description
0
Outdoor unit capacity,example:H3=Heat pump 3 ton
1 Outdoor unit mode:0-standby,2-cooling,3-heating
2 Outdoor unit set compressor speed(Hz)
3 T3:outdoor coil temp.(°F)
4 T4:outdoor ambient temp.(°F)
5 T5:compressor discharge temp.(°F)
6 Th:compressor suction temp.(°F)
7 T3L:(liquid line temp.)(°F)
8 Tf:module temp.(°F)
9 Pe: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 diacharge 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"--"
HPS High pressure switch
T5 Comp. discharge temp. sensor
PT Pressure transducer
T3 Condensor temp. sensor
T4 Ambient temp. sensor
T3L Condensor outlet temp. sensor
TF Radiator temp. sensor
Th Comp. return temp. sensor
EEV Electric expansive valve
RV Reversing valve
PEV Pressure equalizer valve
CCH Crankcase heater
COMP. Compressor
TEMP. Temprature
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
OFF Power off
CODE
CODE
Outdoor Unit Fault Description
Indication Description
E4 Temprature sensor fault (T3,T4,T5,Th,T3L,TF)
F1 High pressure switch fault (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-L9 The IPM module protection(only for analysis)
C3 The coil sensor is seated fault in cooling(T3)
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, lockup
AtL Ambient Temperature Limited T4 (heat pump)
┣
Forced operation mode
L Running indication under T3 limited condition
D Running indication under T5 limited condition
P Compression 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 model
dF Running indication under defrost model
COMP.
U
V
W
Y/G
R
K
WARNING
FAILURE TO FOLLOW THIS WARNING COULD RESULT
IN PERSONAL INJURY OR DEATH
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.
COMPONENTS MAY STORE A
DANGEROUS ELECTRICAL POTENTIAL OF 380 VOLTS DC.
1 blink/cycle
Solid on
2 blinks/cycle
Connected to Bluetooth
Bluetooth in pairing mode
Bluetooth in advertising mode
Bluetooth LED(blue)
1 blink/cycle
LED off
3 blinks/cycle
2 blinks/cycle
Gateway has no fault
No Modbus response from IDS
Unacceptable signal strength
Data packet cannot send
Gateway Fault LED(red)
1 blink/cycle
Solid on
LED off
2 blinks/cycle
Gateway powered on
Abnormal voltage to Gateway
Gateway booting up
Gateway not powered
Power LED(green)
4 blinks/cycle
5 blinks/cycle
Hardware error
Cellular communication error
Connect
Reset
Factory
Powers Gateway off and back on
Activates Bluetooth(hold for at least 4 secs)
Hold for 3-5 secs to run gateway in diagnostic mode
Gateway button descriptions
ODU
Outdoor Unit
Reset
Connect Factory
Reset
Connect
Factory
(See next page
for further details)