Overtemp (Medium Priority) - CardioQuip MCH-1000 Operators & Service Manual

Overtemp (medium priority)

Under normal operation, the MCH software will not allow the water temperature at the outlet
to exceed 42.5˚C. If the outlet water temperature rises above 42.5˚C, the MCH halts its
operation, the OVERTEMP screen appears, and the alarm sounds a repeating three-beep
sequence every 8 seconds.
System mode
indicator
Temperature
differential indicator
Current temp display
CPG Module controls
Audio Silence button
The audible alarm may be silenced for 60 seconds by touching the Audio Silence button
at the bottom left corner of the screen. Touch the cold water control button
(the blue snowflake at the bottom right of the screen) to pump cold water into the
lines to reduce the temperature. Once the temperature reaches a safe level, the alarm will
clear and the MCH will enter STANDBY mode.
Temperature Differential
Indicator Symbol
This symbol is the Temperature Differential indicator. When
displayed onscreen, it indicates that the measured temperature
differential between the MCH's two internal temperature
controllers is greater than 2.5˚C. This is usually caused by
blocked or impeded water flow. Check the water path to be sure
connectors are fully seated, hoses are not kinked, valves are fully
open, and the internal recirculation valve (if so equipped) is fully
in either the NORMAL or INTERNAL position. If the MCH runs in
this condition for more than ten seconds, it will automatically
cease operation and display a FAILURE screen.
Blinking overtemp
indicator (0.5Hz)
Temperature control
buttons
Pump speed control
Cold water control
button
ALARMS | Overtemp 23