Emerson COPELAND ZX Series - Controller Parameter Adjustments; Condensing Temperature Setpoint for R134 a; Evaporating Temperature Adjustment (ZXD Only)

Step Action Phenomenon and Description
1
Press “
” > 3 seconds
Press “
together.
2
Press “
” or “ ”
Modify the number for Target Evaporating Temperature
3
Press “
”
Press “
Evaporating Temperature (ZXD Only)
Jumper received with the unit
Jumper to be installed
Jumper after installation
Change the condensing temperature setpoint (E39) from 20°C to 35°C for R134a operation as below
Step Action Phenomenon and Description
1
Press “
” + “ ”
Enter menu to select “PAr” (parameter) or “rtC”
2
Press “
” or “ ”
Select“PAr (parameter)”
3
Press “
”
4
Press “
” or “ ”
Browse to parameter E39
5
Press “
”
6
Press “
” or “ ”
Change the set point from existing 20°C to 35°C
7
Press “
”
8
Press “
” + “ ”
Exit (or exit automatically after waiting for 120 seconds)
Now the unit is ready for operation with R134a Refrigerant.
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