GO Regulator HPR-2 - User Manual

HPR-2 & HPR-2XW Electrically Heated Vaporizing Regulator
Wiring Instructions for TCO and non-TCO types
Make sure you thoroughly understand these directions before proceeding
MAKE SURE THE REGULATOR IS DISCONNECTED FROM PRESSURE SOURCE
MAKE SURE ANY RESIDUAL PRESSURE IS BLED OFF FROM REGULATOR.
Disassembly
Make sure the regulator is disconnected from pressure source; make sure any residual pressure is bled off from
the regulator. FAILURE TO DO THIS WILL RESULT IN SERIOUS PERSONAL INJURY. DO NOT PROCEED UNTIL
PRESSURE HAS BEEN REMOVED AND/OR TERMINATED
Disconnect unit from AC power supply or terminate AC power supply at its source. FAILURE TO DO THIS WILL
RESULT IN SERIOUS PERSONAL INJURY. DO NOT PROCEED UNTIL AC POWER HAS BEEN REMOVED AND/OR
TERMINATED.
Unscrew condulet cap. If the condulet cap is equipped with a locking set screw, this must be loosened prior to
unscrewing condulet cap.
Loosen and remove the screws that hold the AC feed wires. Carefully remove the AC feed wires and any conduit
that is attached to the condulet. This leg of the condulet must be open to be able to remove the thermistor/heater
assembly.
Loosen the standoffs with a socket. Loosen the screws at position 1 and 3 on the terminal strip and remove the
controller.
Remove the two outside screws that hold the terminal strip onto the sub-plate. Remove the terminal strip.
Loosen and remove the two screws that hold the sub-plate onto the condulet. Remove the sub-plate.
Carefully feed the wires of the thermistor/heater assembly through the hole on the opposite side of the condulet.
Continue pulling on the wires, gradually increasing the load just until the thermistor/heater assembly breaks loose.
Feed the loose thermistor/heater assembly all the way through the hole in the condulet.
1.
2.
3.
4.
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8.

GO Regulator HPR-2 Specifications

General

Diaphragm Material	Stainless Steel
Operating Temperature (Process)	-40°F to 165°F (-40°C to 74°C)
Porting	1/4" FNPT
Flow Capacity	Cv = 0.06
Body Material	316L Stainless Steel

Summary

Disassembly Procedure

Critical Safety Precautions

Ensure regulator is disconnected from pressure and AC power source before proceeding to prevent injury.

Condulet Cap and Feed Wire Preparation

Unscrew the condulet cap and loosen AC feed wires to allow access for assembly removal.

Terminal Strip and Sub-plate Removal

Loosen standoffs and remove the terminal strip and sub-plate from the condulet.

Thermistor;Heater Assembly Extraction

Carefully feed wires and extract the thermistor/heater assembly through the condulet hole.

Assembly Procedure

Install Thermistor;Heater and Sub-plate

Insert the thermistor/heater assembly and place the sub-plate, ensuring wires are managed correctly.

Secure Components

Tighten the sub-plate onto the condulet and the terminal strip onto the sub-plate.

Connect Controller, Power, and Ground

Connect the controller, AC power supply, and ground wire to the correct terminals for safe operation.