Installation & Operation Manual
Bosch Inverter Ducted Packaged Heat Pump
| 37
BTC 761701105 A | 03.2019
Data subject to change
13.13 Wiring Diagram
Figure 48
CN39
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SW6-4
OFF
ON
NORMAL
RESERVED
SW6-3
HEAT:ANTI-COLD AIR FAN DELAY
HEAT:ANTI-COLD AIR FAN DELAY
HEAT:FAN DELAY START
SW6-1,2
Y1 or G
1
2
1
3
2
4
3
5
Y1+Y2 or W
Speed Taps
ON
OFF
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6:
6:
U
V
W
Y/G
Power in
R
Y1 Y2
C
B
G
W1 W2 DH NC NC
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9
9
&20
9
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*
6:
ON
OFF
*
The factory Default
*
6:
ON
OFF
*
6:
ON
OFF
*
-
ON
OFF
;7
;7
*
The factory Default
L1
L2
Y/G
U
9
W
IPM
W
V
U
PFC
CN3
P
N
&1
&1
&1
&1
&1
&1
&1
&1
M-Smart
HPS
T5
PT
T3
T4
T3L
Th
EEV
&1
&1
7)
BLACK
WHITE
BLUE
ORANGE
&1
86%
&1
&1
&1
&1
&1
To thermostat
NOTE:When using two-stage
thermostat,remove this wire.
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.
FAILURE TO FLLOW THIS WARNING COULD RESULT IN
PERSONAL INJURY OR DEATH.
WARNING
WARNING
ELECTRIC HAZARD 380V VOLTS DC
J2
J2
J2
*
For 60K model
For 48K model
Detailed reference manual instructions
FORCE
PRESS
6s
PRESS
1s
S
S
E
R
P
S
S
E
R
P
s
1s
1
PRESS
6s
CHECK
WIFI
Wifi setting(reserve)
Check the system parameters
Test mode(Not used)
Forced cooling/heating
(Charge model)
Forced defrosting
LED1
LED2
LED3
ON
Comp. running
FLASH
LED2 ON
ON
Fault
OFF
No fault
ON
Power on
OFF
Power off
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
CCH
Crankcase heater
COMP.
Compressor
TEMP.
Temprature
Use copper condoctors only
NOTE:If the input voltage
is 208V,take the red wire
to 208V terminal.
TO HEATER KIT
LED2 OFF
IPM Module fault
Standby
ON
3
4
5
GREEN LED4 FLASH
Anti-cool
T1 temprature sensor fault
T2 temprature sensor fault
Dehumidification
1
Normal
SPEED TAPS
MEDIUM LOW
LOW
MEDIUM
MEDIUM HIGH
HIGH
1 * / &
*
*
*
SW5-1
Enter defrost
SW5-2
Quit defrost
OFF
ON
OFF
ON
Normal
Operating time is reduced by 10%
SW4-2
SW4-3
SW4-4
OFF
ON
Normally cooling/heating
Accelerated cooling/heating
Adaptive capacity output disable
SW4-1
Defrosting extended for 60 seconds
Normal
ON
OFF
*
*
*
*
*
*
Adaptive capacity output enable
OFF
ON
OFF
ON
Unused
Unused
Must be set at OFF position
Must be set at ON position
Number Point check content
0
Outdoor unit capacity,example:H3=Heat pump 3 ton
1
Outdoor unit mode:0-standby,2-cooling,3-heating
2
Outdoor uint 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:Actual value
18
Outdoor fan speed
19
Compressor current(A)
20
Power AC voltage Input(V)
21
DC voltage(V)
22
Continuous running time of the compressor(min)
23
Last fault code
24
Software version
25
Remark"--"
CODE
Fault description
E4
Temprature sensor fault(T3,T4,T5,Th,T3L,TF)
F1
High pressure switch(HPS) fault
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
P6
IPM module protection
L0-L9 The IPM module protection(only for analysis)
C3
The coil sensor is saeted fault in cooling(T3)
E7
Compressor discharge sensor is seated fault (T5)
PH
Low discharge superheat protection
P1
High pressure protection (HPS)
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)
CODE
Description
┣
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
Y/G
Y/G
Y/G
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3 4
2
1
ON
2
1
ON
1
ON
3 4
2
1
ON
2
1
ON
1
ON
3 4
2
1
ON
3
4
2 1
ON
1
ON
1
ON
2
1
ON
2
1
ON
2
1
ON
2
1
ON
