Table of Contents
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INTRODUCTION
Hansen PXVC controllers offer a robust, flexible line
of controllers to meet a variety of application needs.
Primarily, the PXVC is an intelligent single-loop PI
controller designed for use with Hansen Motorized
Control Valves and Pulse Expansion Valves. The PXVC
is ordered pre-configured for the following applications:
• PXVC-PT refrigerant superheat/sub-cooling control
• PXVC-DX single point precision refrigerant superheat/
sub-cooling control
• PXVC-T temperature control
• PXVC-L refrigerant level control
• PXVC-P refrigerant pressure control
• PXVC-CI controller interface for connecting Hansen
pulse expansion valves to external control system.
KEY FEATURES
Highlights
Remote alarm output
Pre-configured temperature and pressure alarms
(Other options available contact factory for information)
Intuitive button interface
Large backlit lcd
Alternate menus to visually monitor set point and sensor
readings
Displays output signal in 10% incremental resolution
All controllers feature a two minute ramp up delay where
the controller reaction speed is slowed down.
PXVC
Specifications, Applications,
Service Instructions & Parts
UNIVERSAL CONTROLLER
PXVC-PT, PXVC-DX, PXVC-T,
PXVC-L, PXVC-P, PXVC-CI
ADVANTAGES
1. AC or DC power rated
2. Digital, pulse or analog output
3. User friendly interface
A. Intuitive easy to navigate menu buttons
B. Easy to read multi-character display
I. Ability to monitor set point and sensor values
II. Visual alarm notification
4. Optional remote interlock
5. Plug style terminal block connectors allows for
Quick connections
6. Versatile configuration options
TABLE OF CONTENTS
Introduction ...............................................................1
Key Features ..............................................................1
Applications ...............................................................2
Technical Specifications ............................................2
Advantages ................................................................2
All Models Controller Information ..............................3
Installation .................................................................3
Changing Parameters ................................................6
Model Specific Controller Details ..............................8
PXVC-PT ....................................................................8
PXVC-L .....................................................................11
PXVC-P .....................................................................12
PXVC-T .....................................................................13
PXVC-CI ....................................................................14
Bulletin PXVC
AUGUST 2018
PXVC
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Table of Contents
Related Manuals for Hansen PXVC-PT
Summary of Contents for Hansen PXVC-PT
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Page 1: Table Of Contents
PXVC-L, PXVC-P, PXVC-CI PXVC INTRODUCTION ADVANTAGES Hansen PXVC controllers offer a robust, flexible line 1. AC or DC power rated of controllers to meet a variety of application needs. 2. Digital, pulse or analog output Primarily, the PXVC is an intelligent single-loop PI 3. -
Page 2: Applications
II. Digital Output 2 (Alarm) – 24-250VAC 3A Max 2. NTC 10K Thermistor (PXVC-T) III. Analogue – 0-20mA, 0-10VDC 3. PT2 Pressure Transducer 0 – 100 PSIA (PXVC-PT standard, contact factory for 2. Product Certifications other pressures) a. CE 2004/108/EC 4. -
Page 3: All Models Controller Information
PXVC UNIVERSAL CONTROLER All Models Controller information INSTALLATION FIGURE 1. PXVC (-T,-L,-P,-CI,-DX) PINOUT FIGURE 2. PXVC AUGUST 2018... - Page 4 (pins 11 and 12) FIGURE 3. (Excludes PXVC-PT) Universal Input #2 must be a continuous circuit (switch closed) to operate as a remote interlock pins Connect sensors and power. In superheat applications.
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Page 5: Changing Parameters
Screen two is available on all of the controllers, however than 5 minutes. only the PXVC-PT offers additional information in the 8. It is recommended that only personnel experienced form of temperature and pressure readings. - Page 6 Note: Hansen controller is factory programmed to provide precise control in refrigeration applications when used in conjunction with the PXV valve or Hansen Motorized Control Valves. If control difficulties occur during startup, it is recommended to thoroughly check system and components for proper installation, operation, and sensor location before attempting to modify and/or tune the controller.
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Page 7: Model Specific Controller Details
The PXVC-PT controller is different from the other is in PSIA pressure and convert to PSIG appropriately. controllers in that it uses the second screen to show... - Page 8 NOTE this will not default screen, displays the measured value and the directly control media temperature, see step 8 for set point. Screen two is only utilized on the PXVC-PT media temperature control which provides additional information in the form of 10.
- Page 9 PXVC-PT FIGURE 7. PXVC AUGUST 2018...
- Page 10 2 and have no effect on the control system. By Default the alarm will be enabled until the controller is reset or the value rises to an increment of 10 (degrees F , PSI, %,etc) above its set-point. this can be modified, contact Hansen for configuration instructions. PARAMETER ACCESS CODE 0015 TABLE 2.
- Page 11 Note: Hansen controller is factory programmed to provide precise control in refrigeration applications when used in conjunction with the PXV valve or Hansen Motorized Control Valves. If control difficulties occur during startup, it is recommended to thoroughly check system and components for proper installation, operation, and sensor location before attempting to modify and/or tune the controller.
- Page 12 This allows the saturated gas/liquid mixture set point. Screen two is only utilized on the PXVC-PT level to stabilize in the trap and the sensor to read the which provides additional information in the form of temperature of the liquid which conducts heat much more temperature and pressure readings.
- Page 13 PXVC-DX FIGURE 8. PXVC AUGUST 2018...
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Page 14: Pxvc-L
Upon startup or shutdown Hansen recommends with the Hansen VLT line of probes. The Hansen PXVC-L setting the level with adequate room for overfeed as on initial startup the controller may overshoot the set point. -
Page 15: Pxvc-P
The controller is pressure drops below set point the valve opens. Either preconfigured for the Hansen PT3 transducer, which is the PXV or Motorized Control Valve may be used in this a 4-20mA transducer rated for 0-300psia. The PXVC-P configuration, for wiring diagram, refer to Figure 10. -
Page 16: Pxvc-T
A temperature sensor, NTC 10K included, provides a temperature input to the Hansen PXVC-T controller which pulses the Hansen PXV valve, or sends an analog signal to the Hansen Motorized Control Valve. The valve opens and closes at a rate equal to the refrigerant FIGURE 11. -
Page 17: Pxvc-Ci
PXVC-CI PXVC-CI The PXVC-CI (Controller Interface) controller is designed Controller accepts a 4-20mA analog input and provides to allow an electronic system such as microcontroller or pulse width signal to the PXV valve as shown in Figure 12. PLC to interface with a Pulse Width Expansion Valve. The FIGURE 12. - Page 18 PXVC-L Level Controller for PXV, PXVW (level WARRANTY sensor not included) All Hansen products, except electronics, are guaranteed PXVC-P Pressure Controller for PXV, PXVW against defective materials or workmanship for one (transducer not included, see PT3 below) year F.O.B. factory. Electronics are guaranteed against defective materials or workmanship for 90 days F.O.B.
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