Bosch BMS500-AAS012-0AHWXB, Installation Instructions Manual

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Installation Instructions
Bosch Climate 5000 Series 24 Volt Interface (06.2022)
6 Control Logic
6.1 Connector
Connector Purpose
Y Cooling
W Heating
G Fan- Auto speed
AUX/DRY Aux-Heat/Dry
Table 6
6.2 Mode Setting
Y W G Aux/Dry Setting mode
√ X
* *
Cooling
X √
*
X Heating (without aux-heater)
X √
*
√ Heating (with aux-heater)
X X √ X Fan only
√ √
* *
OFF
X X X X OFF
X X
*
√ Dry
X X
*
√ Emergency Heating
Table 7
√ = ON
X = OFF
* = ON or OFF
6.3 Fan Speed Setting
Unit ON/OFF G Setting fan speed
√
X
Auto fan speed
√ √ Auto fan speed
X X Fan OFF
Table 8
√ = ON
X = OFF
7 Dip Switch Con fi guration
The 24V INTERFACE must be confi gured to operate properly with the system
components with which it is installed. To successfully confi gure the system, move
the Dip Switches to match the components and functions used.
7.1 Dip Switch De fi nitions
Figure 8
SW2 SW3 SW4 SW1
Dip Switch 1-1
Used to turn ON or OFF the diagnostic code display LED on the control board of the
24V Interface.
SW1-1 Result Note
ON Display on
OFF Display off Default
Table 9
Dip Switch 1-2
Used for selection of the indoor unit type.
SW1-2 Result Note
ON Enables 24V INTERFACE to work with IDU & ODU
OFF N/A Default
Table 10
Must be switched to ON before using the system.
Dip Switch 2-1
Used for selection of the system: Cooling Only or Heat Pump.
SW2-1 Result Note
ON Cooling only
OFF Heat pump Default
Table 11