AK-PC 530 Manual RS8EJ302 © Danfoss 05-2010 21
Override
The controller contains a number of functions that can be used
together with the override function in the master gateway.
They can therefore only be used in combination with data
communication.
Function via data communication
Functions to be used in the system units
override function
Selection of parameter in AK-PC 530
084B8007 Sw.1.3x
Stop of injection when the compressor is
stopped
AKC ON - - - MC Inject ON
Night setback Day/night control and time schedule r27 NightSetback
Suction pressure optimisation P0 optimisation
Select controller address
(The parameters are found automatically and
do not become visible).
The system unit registers the refrigeration point which handles the largest capacity (requires the
lowest suction pressure). The parameter may be logged for use in a service situation.
- - - MLC
Regulation P0-input Pc-input Sc3** Sc4 Saux Setting in o06
Pack/chiller
with frost protection
+ condenser
AKS 32R* AKS 32R
Pt1000 Pt1000*** Pt1000*** 0
PTC1000 PTC1000*** PTC1000*** 1
Chiller
without frost protection
+ condenser
Pt1000
AKS 32R
Pt1000 Pt1000 Pt1000 2
PTC1000 PTC1000 PTC1000 PTC1000 3
Pack/chiller
with frost protection
+ dry cooler
AKS 32R*
Pt1000 Pt1000 Pt1000*** Pt1000*** 4
PTC1000 PTC1000 PTC1000*** PTC1000*** 5
Chiller
without frost protection
+ dry cooler
Pt1000 Pt1000 Pt1000 Pt1000 Pt1000 6
PTC1000 PTC1000 PTC1000 PTC1000 PTC1000 7
Selecting sensor type and where the signal must be connected
Overview for setting o06
*) Supplies signal to frost protection.
**) Will supply signal to oating condenser regulation if it is dened in r33 (r33 = 2 or 4).
***) With brine cooling where there should also be frost protection, connect the regulation sensor to either Sc4 or Saux (dened in o81).