AK-PC 781A Capacity controller RS8HE202 © Danfoss 2017-07 27
Extension module EKA 163B / EKA 164B / EKA 166
Function
Display of important measurements from the controller, e.g. ap-
pliance temperature, suction pressure or condensing pressure.
Setting of the individual functions can be performed by using the
display with control buttons.
It is the controller used that determines the measurements and
settings that can occur.
Connection
The extension module is connected to the controller module via
a cable with plug connections. You have to use one cable per
module. The cable is supplied in various lengths.
Both types of display (with or without control buttons) can be
connected to either display output A, B, C and D.
Ex.
A: P0. Suction pressure in °C.
B: Pc. Condensing pressure in °C.
When the controller starts up, the display will show the output
that is connected.
- - 1 = output A
- - 2 = output B
etc.
Placing
The extension module can be placed at a distance of up to 15 m
from the controller module.
Point
No point has to be defined for a display module – you simply con-
nect it.
EKA 163B EKA 164B
EKA 166
Graphic display MMIGRS2
Function
Setting and display of values in the controller.
Connection
The display connects to the controller via a cable with RJ11 plug
connections.
Supply voltage
Received from the controller via cable and RJ11 connector.
Termination
The display must be terminated. Mount a connection between the
terminals H and R.
(AK-PC 781A is terminated internally.)
Placing
The display can be placed at a distance of up to 3 m from the
controller.
Point / Address
No point has to be defined for a display – you simply connect it.
However, the address must be verified. See the instructions ac-
companying the controller.
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