Flushing The System; Water Flow Rate; Connection Of The Heating Circuit - Baxi MainEco Combi 24 Installation And Service Manual

5. Installation
3
4
24
5.5.1.
Installing the boiler in new installations (installations less than
6 months old)
4 Clean the installation with a universal cleaner to eliminate debris
from the system (copper, hemp, flux).
4 Thoroughly flush the installation until the water runs clear and
shows no impurities.
Installing the boiler in existing installations
4 Remove sludge from the installation.
4 Flush the installation.
4 Clean the installation with a universal cleaner to eliminate debris
from the system (copper, hemp, flux).
4 Thoroughly flush the installation until the water runs clear and
shows no impurities.
5.5.2.
The boiler's modulating control system limits the maximum difference
in temperature between the heating flow and return and the maximum
speed at which the flow temperature increases. In this way, the boiler
does not require a minimum water flow rate.
5.5.3.
1. Connect the heating water return pipe to the heating return
connection z .
2. Install a filling and drainage valve on the installation for filling and
draining the boiler.
3. Connect the heating water outlet pipe to the heating flow
connection { .
1
4. Mount the supplied thermomanometer onto the central heating
flow connection. Place the thermomanometer no more than 0.5 m
away from the boiler.
2
R000737-A
Baxi MainEco Combi and System 24 - 28 - 35 / 18 - 24

Flushing the system

Water flow rate

If using a heating and domestic hot water production type
boiler on an installation in which the flow can be fully
disconnected from the return (e.g. by using thermostatic
valves), you should either fit a bypass or fit an expansion
vessel to the heating flow conduit.

Connection of the heating circuit

A PRV safety valve is fitted to the flow side of the boiler as
standard.
02092014 - 7619497-02