Table of Contents
Advertisement
6 Shutting down the system
6.1 Shut-down
If the heating system is not used for a long period, we
recommend shutting down the boiler.
•
Switch the ON/OFF switch to OFF.
•
Cut the power supply to the boiler.
•
Shut off the gas supply.
•
Ensure that the boiler and system are protected
against frost damage.
6.2 Frost protection
CAUTION
If you are not going to use your home or building for
an extended period of time and there is a chance of
frost, drain the boiler and heating system.
•
Set the temperature control low, for example at
50ºF/10ºC.
To prevent radiators and the system from freezing in
rooms where there is a risk of frost (e.g. a garage or
storage room), a frost thermostat or outdoor sensor
can be connected to the boiler.
See chapter: "Frost protection".
CAUTION
•
The frost protection does not function if the boiler
is switched off.
•
The integrated protection system only protects
the boiler, not the installation.
•
The pump only start up in the event that the
heating pump is controlled by the boilers controls
When the heating water temperature in the boiler gets
too low, the integrated protection system in the boiler
starts up. This protection functions as follows:
•
If the water temperature is lower than 45ºF/7ºC,
the heating pump starts up.
•
If the water temperature is lower than 40ºF/4ºC,
the boiler starts up.
•
If the water temperature is higher than 50ºF/10ºC,
the boiler shuts down and the heating pump
continues to run for a short time.
82
MCA Pro 45/65/90/115
MCA-Pro ISM Rv.4.1 2/2017
Advertisement
Table of Contents
