Medivance Arctic Sun 2000, Service Manual

Page: 32 / 85

28
11. Press the Home Key.
12. Allow the water temperature to stabilize at 42
°
C for at least 5
minutes.
Note:
It is important to allow the temperature to fully stabilize
at 42°C. If it does not, it may not be possible to attain the
alarm conditions.
13. Press the S4 switch on the CTU. Monitor the User Interface
Water temperature and start the timer once the temperature
reaches 42.6 . Verify that alarm 34 sounds in less than 14
seconds. Release the switch immediately.
Note:
If the water temperature drops below 42.6°C, restart the
timer when the water again reaches 42.6
°
C.
Note:
If the water temperature exceeds 44.1
°
C for more than
1 second Alarm 33 will occur, and the test must be repeated
Note:
If S4 is held too long or is pressed when no water is
flowing, a safety circuit will turn off power to the heater. The
CTU must be allowed to cool completely if this should occur.
5.2.5 Stage 7: Chiller Capacity Test
1. Press the Manual Mode Key.
2. Press the Down Key once and change the “Water Target
Temperature” to 6
°
C.
3. Press the Home Key.
4. Allow the water temperature to stabilize at 6
°
C for at least 5
minutes.
5. Press and hold S4 for 10 minutes. Note the temperature of
the water. Release the switch.
6.
Note:
If S4 is held too long or is pressed when no water is
flowing, a safety circuit will turn off power to the heater. The
CTU must be allowed to cool completely if this should occur.
7. Once verification and calibration is complete, press the
“Purge” key to remove the water from the CTU.
8. Turn off the Arctic Sun Model 2000, and remove the CTU.
Disconnect associated cabling from the Model 2000 and
reconnect operator cabling.
9. Drain the water from the CTU before storing