Heater-Cooler System 3T • Operation
CP_IFU_16-XX-XX_USA_015 5.11
5.4.2 Starting and stopping circuits
Priming
Prior to using the heater-cooler for the operation, the external components of the circuits (tubings,
heat exchanger) must be primed. When activating a circuit for the first time, an error message (Eo8 on
the display of the cardioplegia cooling circuit as well as E19 and E23 on the display of the patient
circuits) is shown on the heater-cooler due to the air present in the tubing system.
During priming, these error messages are normal. They disappear as soon as the system is completely
primed.
◗ Use the cardioplegia cooling circuit for priming.(Do not use the heating circuit for priming since an
alarm is triggered which causes a pump stop)
◗ Only operate the system after the error messages have disappeared.
◗ After priming, check the water levels of the tanks. Refilling may be necessary, depending on the
volume of the external circuit.
The cardioplegia circuit
The cardioplegia circuit can be supplied with water from either the heating or the cooling tank. The
pumps are running continuously, the powering up/down and the cutover are subject to an internally
controlled mechanism.
Fig. 15: Starting/stopping the cardioplegia circuit
°C °C °C
°C °C °C
1 2
37.6
20.1 20
37
7
5
Starting the cardioplegia circuit
Press the key Circuit Start/Stop 31 on the heater-cooler to start the required circuit (heating
tank: red dot/cooling tank: blue dot).
➜ The circuit is supplied with water from the selected tank.
➜ The green LEDs on the key flash (alternatingly on the heater-cooler).
C
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