Appendix C - Recommended Connection - Danfoss AK-PC 781A User Manual

Appendix C - Recommended connection

Function
The controller has a setting where you can choose between various
types of installation. If you use these settings, the controller will sug-
gest a series of connection points for the different functions. These
points are shown below. (The options shown are determined by
previous settings in the menu, e.g. cooling agent and "Pack type".)
Even if your installation is not 100% as described below, you can still
use the function. After use, you need only adjust the divergent set-
tings.
The given connection points in the controller can be changed if you
wish.
Appl. Compressor
a
b
c
d
e
f
136
Fan Description
LT
1 vsd comp.
1 single
CO 2
LT
1 vsd comp.
1 single
CO 2 , Oil valve
MT
1 vsd comp.
3 single
vsd-fans
Boost
Gas cooler
Receiver
TW
HR
CO 2
MT
1 vsd comp.
3 single
vsd-fans
Boost
Gas cooler
Receiver
Oil sep.
Oil receiver
Oil valve
TW
HR
CO 2
LT
1 vsd comp.
2 single
HFC
Cascade
MT
1 vsd comp.
3 single
4 fans
HFC
Cascade
HR
Capacity controller RS8HE202 © Danfoss 2017-07
Module Point number
1 2
Modul 1 - LT Comp. Loadshed
Controller Release 1
Modul 2 - Comp. 1 Comp. 2
AK-XM 102B safety safety
Modul 1 - LT Comp. Loadshed
Regulator Release 1
Modul 2 - Comp. 1 Comp. 1
AK-XM 102B safety safety
Loadshed
Modul 1 - MT Comp.
1
Regulator Request
Comp. 1 Comp. 2 Comp. 3
Modul 2 -
safety safety safety
AK-XM 102B
Modul 3 -
AK-XM 103A
TW TW TW
Modul 4 -
Stw2 Stw3 Stw4
AK-XM 208C
TW Flow Sw. HR
Modul 5 -
enable TW enable
AK-XM 205A
Loadshed
Modul 1 - MT Comp.
1
Regulator Request
Comp. 1 Comp. 2 Comp. 3
Modul 2 -
safety safety safety
AK-XM 102B
Modul 3 - Reset Kom Oil Low Oil Hi
AK-XM 103A lockout Receiver Receiver
TW TW TW
Modul 4 -
Stw2 Stw3 Stw4
AK-XM 208C
TW Flow Sw. HR
Modul 5 -
enable TW enable
AK-XM 205A
Oil lvl. Oil lvl. Oil lvl.
Modul 6 -
Comp. 1 Comp. 2 Comp. 3
AK-XM 205A
Loadshed
Modul 1 - LT Comp.
1
Regulator Release
Modul 2 - Comp. 1 Comp. 2 Comp. 3
AK-XM 102B safety safety safety
Loadshed
Modul 1 - MT Comp.
1
Regulator Request
Modul 2 - Comp. 1 Comp. 2 Comp. 3
AK-XM 102B safety safety safety
Modul 3 -
AK-XM 205A
3 4 5
Loadshed Main Sw.
2
VSD C.1
safety
Loadshed Oil lvl. Oil lvl. Main Sw.
2 Comp. 1 Comp. 2
VSD C.1
safety
Loadshed
Sgc Shp Main Sw.
2
Comp. 4 VSD C.1 Fan 1
safety safety safety
Power loss
TW HR HR
Stw8 Shr2 Shr3
Flow Sw. Volt Saux 1
HR input 1
Loadshed
Sgc Shp Main Sw.
2
Comp. 4 VSD C.1 Fan 1
safety safety safety
Power loss
TW HR HR
Stw8 Shr2 Shr3
Flow Sw. Volt Saux 1
HR input 1
Oil lvl. Oil Low Oil Hi
Comp. 4 Separ. 1 Separ. 1
Loadshed
Night Main Sw.
2
VSD C.1
safety
Loadshed
Night Heat Main Sw.
2
recovery
Comp. 4 VSD C.1
safety safety
AK-PC 781A
6