Heater-Cooler System 3T • Routine maintenance
CP_IFU_16-XX-XX_USA_015 6.11
Starting circulation in patient circuit 1 and 2 and in the warm cardioplegia circuit
◗ Press the keys Circuit Start/Stop 30 and 31 of the
warm cardioplegia circuit (heating tank = red dot)
and of the patient circuit to start the circuits.
➜ The green key LEDs flash alternately.
The circulation in the circuits changes the water
level.
➜ If the orange LED flashes, add 0.5 l to 1 l
(17 US fl. oz. to 34 US fl. oz.) of filtered water.
An alarm is triggered if the level drops any further
(see “Water level alarm” on page 5.13).
Stopping circulation in the circuits
◗ End the disinfection cycle after 10 minutes. By closing the venting valves at the rear of the heater-
cooler during ongoing circulation, the pumps will drain the tubing completely.
◗ Press the keys Circuit Start/Stop 30 and 31 of the warm cardioplegia circuit (heating tank = red dot)
and of the patient circuit to stop all circuits.
➜ Water circulation is stopped.
➜ The green LEDs of the keys Circuit Start/Stop go out.
Draining the water tanks
◗ Open the drain valves 11 and 12.
◗ Drain the solution containing Clorox Regular Bleach or Minncare Cold Sterilant. Use buckets and
observe hospital regulations when disposing of these items.
To remove residual disinfectant solution from the system, rinse the tanks after every disinfection cycle
two (2) times as follows:
◗ Make sure that the drain valves 11 and 12 are closed.
◗ Fill the tanks with filtered tap water until the second green LED d of the water level display for the
patient circuit lights up.
◗ Open the three venting valves at the rear of the heater-cooler.
◗ Press the keys Circuit Start/Stop 30 and 31 of the warm cardioplegia circuit (heating tank = red dot)
and of the patient circuit to start the pumps.
◗ Let the water circulate for approx. 3 minutes.
◗ By closing the venting valves at the rear of the heater-cooler during ongoing circulation, the pumps
will drain the tubing completely.
◗ Press the keys Circuit Start/Stop 30 and 31 to stop circulation.
◗
Open the drain valves 11 an
d 12 and drain the water.
Filling the tanks for heater-cooler operation
◗ Fill the tanks for operation as described in chap. 5.2.
°C °C °C
°C °C °C
1 2
37.6
20.1 20
37
10
5
1
1
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