Alfa Laval Micro
Installation, service and operating instruction
27
Picture 18
System check 6.7
Check that the full system has been installed correctly:
1. Press the button on the relay. box, to make an temporary override.
2. Check the boiler supply is on and check that the green LED on the relay box is off.
3. Press the MAN button, on the room thermostat.
4. Adjust the set point up to the maximum (35°C) by pressing the button. The boiler turns on, green
LED is ON at the relay box, after a few seconds and the symbol appears on the room thermostat
LCD display.
5. Press the OFF button on the room thermostat. The boiler will go off (green LED OFF on relay box) after
a few seconds and the symbol disappears.
6. Check the system operation by alternately pressing the MAN and OFF buttons several times, bearing
in mind the switching delay referred to above.
7. The installation is completed.
8. Choose operating mode, see 8.1 Choosing the operating mode.
Alfa Laval recommends MAN mode.
9. The room thermostat has been set at the factory. If any function needs tuning, values can be changed
with see 12.3 CM721– Installer parameters table.
Initially, the commissioning process should be carried out with the factory settings.
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