The following list includes all data points that can be read and written from a BACnet primary plant. The items ensure coordination between primary plant and the room. In addition, appropriate Desigo primary application for the given room function is mentioned.

Data point name

Description

Desigo primary application

HpuSrcReq

The central function prepares one heat pump demand acquisition and evaluation to the connected rooms for the primary plant. The enumerated result can include:

0:No
1:Yes

None

HpuSrcCmd

The central function prepares one heat pump demand acquisition and evaluation to the connected rooms for the hard-wired central heat pump source. The enumerated result can include:

0:Off
1:On

None

CenHpuSrcInAvl

Hard wiring of the primary plant: Central heat pump source input is available

None

CenHpuSrcAvl

BACnet reference from the primary plant: Central heat pump source is available

None

Source request

The source request is pending if at least one room reports a source demand.

Heat pump source
central override

Central functions permit the central override of the heat pump source enable for all heat pumps in the supply group. The following parameters can be used:

Description

Name

Default value

Enable heat pump source override

EnHpuSrcOvrr

0:No

Heat pump source override

HpuSrcOvrr

0:Off