External Signal Output - Danfoss Optyma OP-UPAC015COP04E Application Manuallines

Application Guidelines
Fig. 29
Note on R744 (CO ) :
2
R744 (CO ) uses pressures higher than equipment based on Freon. Sufficient care must be taken when charging the gas.
2
Caution for work
1. Charge in liquid phase after breaking the vacuum at 7 or 10 bar.
2. Confirm that it is contained in a cylinder special to R744 (CO2).
3. Use the manifold valve and the charge hose special to R744 (CO
4. Show a warning sign board stating "High pressure gas charge" at a place where it can be seen by people. (When the charging place
can be approached from more than one place, show the board at respective places.)
5. Even when the charge pressure dropped in the cylinder, never heat the cylinder higher than 40°C for reason of security.
6. Do not lay flat the cylinder during charging.
7. Before disconnecting the charge hose, open the blow valve of gauge manifold to release CO
frostbite because the liquid refrigerant may be released.

5.7 External signal output

Part of operating states can be output from the controller of condensing unit.
1. Alarm signal :
If the condensing unit stops under abnormal condition, an alarm signal is released.
2. Compressor operation signal :
Signals of compressor operation and stop can be extracted.
- Extract signals via a relay.
Where the power for the relay contacts is taken from a terminal box, connect the wires as shown by the electric wiring in the next section.
List of external output
Name
CNS1(Green)
CNS2(Red)
External
CNS3(Brown)
input
CNG1(Blue)
CNG2(White)
CNH(Blue)
External CNY(White)
output
CN N Z1, CNZ2
(Red) (Black)
(*) 0: Operation output 1: Error output 2: Compressor ON output 3: Fan ON output 4: Oil return operation output 5: High pressure control output
6: Compressor operation time (Maintenance time) time-over output
For the default output, see Instruction manual page 48
42
AB408540130380en-000102
5. System design recommendations
Purpose (Factory default)
no use
ON-OFF SW
Compulsory oil return control input
Gas cooler fan snow control input
Multistep demand input
Operation output
Error output
Set with 7-segment (*)
).
2
Specifications
Stops when open.
Valid when short-circuited.
Non-voltage contact
Valid when short-circuited.
(DC12V)
Valid when short-circuited
Valid when short-circuited.
-
12 VDC
-
output
(10 mA)
(Molex: Provide 5557-2R, 5556T at site.)
Low
pressure side
service port
Middle
pressure side
service port
refrigerant. Take care to prevent
2
Point of caution
Use connectors fixed with
tapes on the outer wall of the
control box.
© Danfoss | Climate Solutions | 2023.02