7
PXVC
AUGUST 2018
MODEL SPECIFIC CONTROLLER DETAILS:
PXVC-PT
The PXVC-PT controller measures the superheat
temperature of the refrigerant by measuring the pressure
and temperature, from which the superheat is calculated.
The PXVC-PT controller is different from the other
controllers in that it uses the second screen to show
pressure and temperature readings from the sensors
and it has an additional universal input to accommodate
measuring pressure and temperature simultaneously as
shown in Figure 5. The controller provides proportional
control with integral error correction to digital and analog
outputs for use with Hansen Motorized Control Valves
and Pulse Expansion Valves. The PXVC-PT allows for
monitoring of the refrigerant temperature and pressure
by the secondary display screen as shown in the user
menus (please note that the pressure displayed is in PSIA
pressure and convert to PSIG appropriately).
Follow the startup instructions as written in the section
on startup, however note that the second screen (as
shown in the section on user menus) may be used to set
the suction pressure regulator pressure to control the
system superheat, please note that the pressure displayed
is in PSIA pressure and convert to PSIG appropriately.
PXVC-PT
FIGURE 5.
