Hypertherm HT4001 Plasma Arc Cutting System - Manual (Page 42)

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PRE-INSTALLATION
3-2
HT4001
Instruction Manual
Introduction
Prior to the installation of the HT4001 plasma cutting system, please read the following requirements. Their
purpose is to both aid you in the installation of your plasma cutting system and to maximize performance of the
system.
Installation and service of the electrical and plumbing systems must conform to national or local electrical
and plumbing codes. Have this work performed only by qualified, licensed personnel.
If questions arise at any time, call Technical Service listed in the front of this manual or your authorized Hypertherm
distributor.
WARNING
Cutting with oxygen as the plasma gas can cause a potential fire hazard due to the oxygen-enriched
atmosphere that it creates. As a precaution, Hypertherm recommends the installation of an exhaust
ventilation system if the customer will be cutting with oxygen.
Gas Requirements
The HT4001 system requires a supply gas purity of 99.995% for nitrogen and 99.5% for oxygen. The customer
must supply the source gas. Hypertherm recommends using liquid gas containers.
Note: If the purity level of the gas is too low or if there are leaks in the supply hoses or
connections, cut speeds can decrease, cut quality can deteriorate, cutting thickness
capability can decrease, and parts life can shorten.
If making hard plumbing connections, avoid using iron pipe. Never use PTFE tape on any
joint preparation. After installation, pressurize the entire system and check for leaks.
From Source Supply to Gas Console
The customer must provide a regulator capable of delivering the following:
Oxygen: 120 psi +/- 10 psi (8.3 bar +/- 0.7 bar) to the gas console
Nitrogen: 150 psi +/- 10 psi (10.3 bar +/- 0.7 bar) to the gas console.
Caution: Gas supply pressures not within the above parameters can cause poor cut quality,
poor consumable life, and operational problems.
We recommend filtering nitrogen gas with an oil absorbing or coalescing filter and using liquid nitrogen to reduce
the risk of gas contamination.
If you are not using hard plumbing from the supply gas to the gas console, we recommend using standard oxygen
and nitrogen hose with the system. Hypertherm can provide oxygen or nitrogen hose. See page 4-26 for detail.