38
Instructions for the installer
3.9.2
DHW
Prior to installing the boiler, the hydraulic system is to be cleaned in order to remove impurities; they could be present in system components
and damage the pump and the heat exchanger.
Model KC
Cold water inlet and DHW outlet shall be connected to the boiler through the dedicated 1/2" F and C fittings.
Hardness of water supplied to the boiler may increase the plate heat exchanger cleaning/replacement intervals.
Model KR
Cold water inlet shall be connected to the boiler through the special 1/2" fitting F.
Model KRB
Return from the water heater (RB) and flow to water heater (MB) must be connected to the respective 1/2” connectors F and C on the boiler
WARNING
Depending on the hardness of the mains water supply, ascertain whether or not to install appropriate domestic water treatment
systems using water treatment products suitable for drinking water and compliant with the regulations and standards in force in
the country of installation.
Water treatment is always advisable when water supplied to the boiler is more than 15°F hard.
Water supplied by commonly marketed water softeners, due to its chemical-physical features, may not be compatible with some
components of the heating system as the latter is filled with DHW.
For this reason we recommend using polyphosphate dosing systems.
3.9.3
Condensate drain
Comply with condensate drain laws and standards applicable in the country of installation, which are considered herein integrally transcribed.
Unless forbidden, the condensate produced by combustion is to be routed via the condensate drain through a discharge system connected
to the domestic sewer, which due to its basicity, counteracts flue gas condensate acidity. In order to avoid domestic sewer odour to reach the
premises, it is advisable to install an appropriate device between the discharge system and the domestic sewer. The condensate drain system
and the domestic discharge system is to be made of an adequate, condensate-resistant material.
Condensate drain system must be connected to specific fitting (A) in the boiler (see Fig. 17 Condensate drain).
It is strictly forbidden to connect condensate drain system in trap inspection point (B).
WARNING
The manufacturer shall not be held responsible in case of damage to people, animals, or property due to failure to follow the above
mentioned instructions.
B
A
Fig. 17 Condensate drain
Summary of Contents for minorca kr
Page 62: ...62 ...
