IntesisBox HA-AC-KNX-16 User Manual page 19

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IntesisBox KNX - Haier A.C. (VRF line)
This parameter shows/hides the Control_ Ambient Temperature communication object which
lets you use an ambient temperature reference provided by a KNX device.
If set to "no" the object will not be shown.
o
If set to "yes" the Control_ Ambient Temperature object will appear. Meant to be enabled
o
when you want the temperature provided by a KNX sensor to be the reference ambient
temperature for the air conditioner. Then, the following formula applies for the calculation of
real Control_ Setpoint Temperature sent ot the AC unit:
"AC Setp. Temp" = "Ambient ref. Temp" - ("KNX Amb. Temp." - "KNX Setp Temp.")
Temp")
As an example, consider the following situation:
User wants: 19ºC ("KNX Setp. Temp.")
User sensor (a KNX sensor) reads: 21ºC ("KNX Amb Temp.")
Ambient temp. read by Haier system is: 24ºC ("Ambient Ref. Temp")
In this example, the final setpoint temperature that HA-AC-KNX-8/16/64 will send
out to the indoor unit (shown in "Setp. Temp.") will become 24ºC – (21ºC - 19ºC)
= 22ºC. This is the setpoint that will actually be requested to Haier unit.
This formula will be applied as soon as the Control_ Setpoint Temperature and
Control_ Ambient Temperature objects are written at least once from the KNX
installation. After that, they are kept always consistent.
Note that this formula will always drive the AC indoor unit demand in the right
direction, regardless of the operation mode (Heat, Cool or Auto).
© Intesis Software S.L.U. - All rights reserved
This information is subject to change without notice
IntesisBox is a registred trademark of Intesis Software SLU
19:
AC Setp. Temp: AC indoor unit setpoint temperature
▪
Ambient Ref. Temp: AC indoor unit return temperature
▪
KNX Amb. Temp.: Ambient temperature provided from KNX
▪
KNX Setp. Temp: Setpoint temperature provided from KNX
▪
User's manual r1.0 EN
URL http://www.intesisbox.com
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