Neutronics H1301 - Complete Machine Evacuation

Model H1301 Recovery and Recycling System
Installation, Operation and Maintenance Manual
Revision-L September, 2019
Page 59 of 105
VII. System Maintenance Procedures (continued)
K. Complete Machine Evacuation
A complete machine evacuation should be performed after every 20000 pounds of
processed AGENT to reduce moisture and ice formation internal to the machine. The
evacuation procedure will also need to be performed if water contamination of processed
AGENT becomes apparent or if component failures occur due to ice formation internal to
the machine.
A complete machine evacuation must be performed before processing a different type of
agent.
Figures 10, 11, 12 and 13 will detail the valve locations required to perform this
procedure.
DO NOT EMPTY THE MACHINE INTO GOOD PROCESSED AGENT STORAGE
TANKS. A SEPARATE EMPTY STOREAGE TANK MUST BE USED. THE CAPTURED
AGENT THEN MAY BE USED TO PROVIDE THE INITIAL CHARGE PER SECTION-V.B
AFTER THIS EVACUATION PROCEDURE HAS BEEN COMPLETED FOR THE SAME
TYPE OF AGENT.
Machine Evacuation Procedure
Required Materials:
 Vacuum Pump
 Leak Detector Fluid
 Evacuated AGENT Storage Cylinder as Specified in procedure
 Clean Dry Nitrogen Source regulated to 200 psi
 Vacuum Gauge
 ¼” Refrigeration Service Hoses
 Straight Blade Screwdriver
 #2 Phillips Drive Screwdriver
 ½” Socket Torque Wrench 20 to 100 inch pound indicator
NOTE: All plumbing connections to the various access valves of the machine require
SAE ¼” x 45 Female Flare connectors. Access valve locations designated by “AV” will
require valve core depressors. Standard ¼” refrigeration service hoses will mate to all
of the access valves and may be used to simplify all plumbing connections.
1. Receiving Storage Container Selection:
The container must be pressure rated to contain the type of agent in the machine.
The inlet port must enter on the vapor side of the container.
The container must have a shut off valve installed to the inlet port of the container.
The container must have a safety pressure relief valve installed to the vapor side of
container. The working pressure of the container should be no less than 80% of the rated
opening pressure of the relief valve.
The receiving containers must be sized according to the amount of AGENT
contained in the process tank of the machine as listed below:
 Below low liquid level indication: Minimum 50 pound capacity tank.
 Above low liquid level and below mid liquid level indication: Minimum
100 pound capacity tank.
 Above mid liquid level up to high liquid level indication: Minimum 200
pound capacity tank.