Zxd Electronic Controller - Emerson ZX Platform Condensing Unit Product Manual

ZXD Electronic Controller

ZXD Condensing Unit BOM
Electronic Controller Parts
Digital scroll compressor controller
Fan speed controller
The controller has been pre-programmed with a number of parameter values that are most likely correct. Individual installation
requirements, however, may make it necessary to alter parameter settings.
The control target of the compressor controller is to maintain the suction pressure (or saturated suction temperature) at a defined
value by varying the available compressor capacity.
The control target of the fan speed controller is to maintain the average condenser mid coil temperature and hence the average
discharge pressure at a defined value. This is achieved by varying the fan speed. The setpoint can be altered using the SEtF parameter.
Keyboard
+ Press Together for 3 seconds to Lock and unlock keyboard
+ Press together for 3 seconds to enter programming mode
+ Exit programming mode or wait 30 seconds
Pre-Set Parameters
Parameter
SEtC
SEtF
dEU
CF
PMU
dSP1
dEU1
dSP2
dEU2
Warning: Before changing set points, installer must check refrigerant type, measured value units for compressors and fans.
Example: FtyP(Refrigerant type), dEU(Measured value units), LSE/HSE (limitation of set values)
19
450
Value Unit
-6 °C
25 °C
tMp -
°C -
Bar -
p2 -
tMp -
p1 -
prs -
ZXD BOM
451 461
Evaporation temperature set point
Fan speed control condenser mid-point temperature
Saturated Temperature measurement
Temperature unit
Pressure unit
Upper LED display – condensing temp.
Upper LED default - temperature
Lower LED default display – Suction Pressure
Lower LED default - pressure
Description