Wiring Diagram - Bosch 15 SEER2 Series Installation Instructions Manual

13.14 Wiring Diagram

W2 V2 U2
CN32
OUTDOOR FAN MOTOR
IPM
G R A Y
W
W
B R O W N
V
V
U
B L A C K
U
U
W
PFC
COMP.
RED CN1
CN18
L1
B L A C K CN2
L2
240V
Y E L L O W
R E D
208V 24V
B L A C K
Y E L L O W
COM
NOTE:If the input voltage
TRANSFORMER
is 208V,take the red wire
to 208V terminal.
B R O W N
P U R P L E
Y E L L O W
R E D
B L U E
O R A N G E
B L A C K
R E D
I N D O O R F A N M O T O R
XT2
R E D
B L A C K
R E D
B L A C K
Y/G
RED BLACK
NOTE:When using two-stage
XT1
L1 L2
thermostat,remove this wire.
Indoor Board LED Code
Normal
ON
Power in
1
Dehumidification mode active
Use copper conductors only
Evap freeze protection active
2
SPEED TAPS
1 2 3 4 5
3
Anti-cold air function active
1
LOW
2
4
MEDIUM LOW Temperature sensor fault(T1)
3
MEDIUM
5
Temperature sensor fault(T2)
4
MEDIUM HIGH
5
6
N G L C
Communication error
HIGH
Figure 57
Outdoor Board LED Code
ON Compressor running.
fl ashing 2s ON then 2s OFF, Compressor is standby.
fl ashing Flashing then 3s OFF. Compressor error will show on digital display tube.
fl ashing Flashing quickly 400ms/cycle. Compressor chip communication error.
Table 38
Bosch 15 SEER2 Inverter Ducted Packaged Heat Pump - BTC 761701319 A (12.2022)
S D 1 P
CN25
CN10
SW3 SW2 SW1 CN21
CHECK FORCE
ON ON
CN11
1 2 3 4 1 2
SW4 SW5
ON
CN14
1 2
SW6
CN16
BLACK
O U T D O O R
WHITE
M A I N B O A R D CN7
BLUE
CN20
CN13
RECTIFIER
CN9
CN12
CN8
GND1 GND2
CN17
CN3
C N 3 5
SW6
L E D 4
ON
1 2 3 4
G R E E N
C N 3 7
C N 3 3
INDOOR
MAIN BOARD
C N 1 3
C N 3 0
C N 8
C N 1 2
NOTE:
C R Y1 Y2 B Dh W2 W1 G
T2 T1
To thermostat
*The factory Default (Indoor unit)
SW6-4 ON
ON
2 2 1
1 2
ON
3 2 2 1
SW6-1,2
1 2
Speed Taps
ON
2 1
(Indoor unit) 4 3
*
1 2
ON
3 2
5 4
1 2
H MH M
ON HEAT:ANTI-COLD AIR FAN DELAY
SW6-3
OFF HEAT:FAN DELAY START
ON AUTO FAN CONTROL
SW6-4
TWO STAGE FAN CONTROL
OFF
WARNING
ELECTRIC HAZARD 380V VOLTS DC
WAIT 3 MINUTES AFTER DISCONNECTING POWER,THEN
HPS
VERIFY DC VOLTAGE LESS THAN 42 VDC AT INVERTER
TEST POINTS P-N. COMPONENTS MAY STORE A
DANGEROUS ELECTRICAL POTENTIAL OF 380 VOLTS DC.
FAILURE TO FOLLOW THIS WARNING COULD RESULT IN
PERSONAL INJURY OR DEATH.
*The factory Default (Outdoor unit)
T5
ON ON
ON ON ON
PT * *
2
1 2 3 4 OFF 1 OFF 1 2
SW5 SW6
SW4
T3
T4
ON Must be set at ON position. For IDP
T3L SW4-1
OFF For IDS
Th
ON Unused
SW4-2
OFF Must be set at OFF position
EEV
Adaptive capacity output disable
ON
SW4-3
OFF Adaptive capacity output enable
Accelerated cooling/heating
ON
SW4-4
Normally cooling/heating
OFF
RV
CCH
ON Operating time is reduced by 10%
SW5-1
*
Enter defrost
OFF Normal
SW5-2 ON Defrosting extended for 60 seconds
*
Quit defrost OFF
Normal
ON
ON
For 24K model
OFF
1 2
ON
ON
For 36K model
OFF
1 2
SW6
ON
ON
Set capacity For 48K model
OFF
1 2
(Outdoor unit)
ON ON
For 60K model
OFF
1 2
SW3
Wifi setting (Reserve)
PRESS PRE S S
Check the system parameters
CHECK
1s 1s
PRESS
Test mode (Not used)
6s
Forced cooling/heating
PRESS
FORCE
1s (Charge mode)
PRESS
Forced defrosting
6s
TO HEATER KIT
CODE Description
HPS High pressure switch
T5 Comp. discharge temp. sensor
: Factory optional
PT Pressure transducer
: Field installed
T3 Condensor temp. sensor
T4 Ambient temp. sensor
ON
ON
T3L Condensor outlet temp. sensor
*
1 2 3 4 OFF
Th Comp. return temp. sensor
SW6
TF Control board module temperature
T1 Return air temp. sensor
*
SW6-4 OFF
T2 Indoor coil temp. sensor
EEV Electric expansive valve
1 2 1
RV Reversing valve
1
3
CCH Crankcase heater
COMP. Compressor
4 2
TEMP. Temperature
5 3
Date
Factory code
L H MH M L
16027700002615 Nov. 26th,2022
*
*
Note: This manual is for reference only, actual
product may vary.
Installation Instructions
CODE Fault description
C3 The coil sensor is seated fault in cooling(T3)
E4 Temperature sensor fault(T3,T4,T5,Th,T3L)
E5 High/Low voltage protection
E6 DC fan motor fault
E7 Compressor discharge sensor is seated fault (T5)
E9 EEPROM fault
F1 High pressure switch(HPS) fault
H0 Communication fault in main control chip
H5 5 times (P2) protection in 100 minutes, lockup
H8 Pressure transducer fault (PT)
ON
L0-L9 The IPM module protection(only for analysis)
P0 High module temperature protection(TF)
OFF
P1 High pressure protection (HPS)
P2 Low pressure protection in cooling or heating (PT)
*
P3 Compressor over current protection
P4 High T5 protection
P5 Condensor coil temperature protection in cooling (T3)
P6 IPM module protection
*
P8 DC fan motor hurricane/typhoon protection
PH Low discharge superheat protection
*
AtL Ambient Temperature Limited T4 (heat pump)
PC Evaporator freezing protection
*
E1 Communication error
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
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 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 Tes:target evaporating temp.(only for cooling mode)(
12 Te:evaporating temp. ( °F )
Tcs:target condensing temp(only for heating mode)(
13
14 Tc:condensing temp.(°F)
Target of the compressor discharge superheat
15
(heating mode only):Target value (°F)
16 Compressor discharge superheat
Opening of EEV:Actual value
17
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
T1:Return air temp.(°F)
Revision
26 T2:Indoor coil temp.(°F)
C
Indoor fan speed
27
Ts:Assume thermostat set point temp.(°F)
28
29 Remark"--"
°F
)
°F
)
°F
( )
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