Priming - CardioQuip MCH-1000 Operators & Service Manual

Priming

System mode indicator
Current Temperature display
CPG option controls
Control buttons
From the STANDBY screen, touch the
is designed to be largely self-priming, running a priming cycle will remove all air bubbles from
the lines, offering quieter operation and better heat transfer. During the priming cycle, the
pump runs at high speed, and the cooling control valve automatically alternates the water flow
between cooling mode and recirculating mode every ten seconds. No operator intervention is
required. The MCH may be returned to STANDBY mode at any time by pressing the
button.
The standard priming cycle length is 2 minutes, but touching the Extended Prime button
—the stopwatch icon to the left of the countdown timer—will increase the priming cycle
length to 10 minutes. This feature is most useful when performing the Quarterly
Maintenance procedure.
During priming, if the pump speed setting is below maximum, the MCH will automatically
override the setting for the duration of the priming cycle. When this occurs, the PUMP SPEED
label will change to an OVERRIDE label. Once priming is complete, the pump speed will return
to the preset.
18 CONTROL SCREENS | Priming
button to enter PRIMING mode. While the MCH
Prime
Countdown timer
Extended Prime button
Temperature control buttons
Pump speed override
Standby