Hypertherm HT200LHF-200 Volt HySpeed - Manual (Page 106)

MAINTENANCE
HySpeed HT2000LHF
Instruction Manual
5-17
6
Figure 5-7 Plumbing Schematic of Power Supply Reservoir Assembly and Torch
Cathode Block
(in back of
power supply)
Heat
Exchanger
Check
Valve
Flow Switch
FS1
Solenoid Valve
V1
Particulate
Filter
Float Switch
LS1
Coolant Reservoir
Temperature Switch
TS1
Torch
Pump with
Relief Valve
Torch Coolant Draining
Hypertherm recommends draining the torch coolant from the power supply and torch before transporting the
system. After this draining procedure, a small amount of coolant will remain in the system pump and valves. For
this reason, Hypertherm also recommends that a suitable ratio of propylene glycol be purged through the system
prior to draining if the system will experience extremely cold temperatures. Note that Hypertherm's stock propylene
glycol solution 028872 is rated to 10° F (-12° C).
1. Disconnect all power to the system.
2. Remove the fill inlet cap from the reservoir to allow proper venting.