TECHNICAL MANUAL
P/N 703073 Rev C
CoolSystems, Inc. – Confidential & Proprietary
Page 7 of 43
Air Pressure Errors
During treatment, the Control Unit continuously monitors and adjusts air pressure. If
the air pressure falls outside of certain parameters, air pressure alarms may occur:
•
06
: Over Pressure Error (sensed brief period of over pressure)
•
07
: Under Pressure Error (did not reach top of pressure profile within expected
timeframe)
•
08
: Deflation Error (pressure did not vent at the bottom of the pressure profile
within the expected timeframe).
2.3.
Fluid Flow
The Control Unit has a fluid pump that circulates the ice water through the system. The
fluidics circuit contains the ice box filter, a fluid pump, a flow sensing system, and either 1
or 2 temperature sensors (Reference the “Temperature Control” Section for more detail
on temperature sensing). The Flow Sensing system monitors your Control Unit for
adequate flow returning to the Control Unit.
Fluid Flow Errors: If adequate flow is not sensed, one of two flow alarms will occur. If flow
never sensed at the beginning of a treatment, the system assumes the Hose is not
connected to a Wrap, there is not enough water in the ice box, there is a blockage in the
system, or an air bubble in the fluid pump (pump priming problem). In this case, an 04
error (Dry Pump Alarm) will occur. If flow is sensed at the beginning of a treatment, it will
not call an 04 error, but will continue to monitor flow. If flow is blocked during treatment
for a long enough period of time, a 10 error (Low Flow) will occur. Also during treatment,
the fluid pump current will be monitored. If the pump current is found to be excessive, an
09 error will occur.
2.4.
Temperature Control
The Control Unit does not generate cold. The water is cooled by the ice in the ice box,
and warmed by water returning from the Wrap, using the heat of the user as a heat
source. GR2.0 and GR2.1 systems control temperature in a different manner.
CoolSystems
Inc.,
Effective
Date:
12/23/14
