Control Board Overview - Bosch 19 SEER Series Operation Manual

Installation & Operation Manual

13.9 Control Board Overview

Main Control Board for 5 Ton Model
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Figure 30
BTC 761701105 A | 03.2019
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Bosch Inverter Ducted Packaged Heat Pump | 27
No. Function description
1 Reserve
2 Compressor crankcase heater port
3 Reversing valve port
4 Thermostat wire connections
5 EEV port
14
6 Th sensor port
13
7 TF sensor port
12
8 T3 T4 T3L sensor port
11
9 Pressure transducer port
10
10 T5 sensor port
9
11 Reserve
8
12 Reserve
7
13 Reserve
14 High pressure switch port
6
5
15 USB port
16 SW2 FORCE BUTTON
4
17 SW3 CHECK BUTTON
18 J2 Dip SWITCH: Select capacity
3
19 SW5 Dip SWITCH:Defrost logic settings
20 SW4 Dip SWITCH:Control logic settings
21 Reserve
22 IC20 ： EEPROM Chip
23 LED
24 IC14 ： Drive EEPROM Chip
25 ECM motor port
26 Compressor: W port
27 Compressor: V port
2
28 Compressor: U port
1
29 Power input
30 Power input
Data subject to change