6. Piping installation
Installer reference guide / Mono tank integrated type
56
Outdoor unit
[ Supply Scope ]
Balancing Vessel
Zone Control
Supply Header
Return Header
Supply Header
Return Header
Under-Floor Heating Coils
Radiators or
Convectors
45°C
35°C
Outdoor
Zones
Mechanical Room
Hot Water
Cold Water
• When using non-brass metallic piping, insulate the brass and non-brass properly so that they do NOT make contact
with each other. This is to prevent galvanic corrosion.
• When using a 2way valve or a 3way valve in the water circuit, the maximum change-over time of the valve must be
60 seconds.
• To avoid stagnation of water, it is important that the storage capacity of the DHW tank meets the daily consumption of
DHW.
Immediately after installation, the DHW tank must be flushed with fresh water. This procedure must be repeated at
least once a day the first 5 consecutive days after installation.
In cases where during longer periods of time there is no consumption of hot water, the equipment must be flushed
with fresh water before usage for the disinfection function of the DHW tank must be activated in order to meet with
local regulations.
• In accordance with the applicable legislation, it may be necessary to install thermostatic mixing valves.
• The installation must be in compliance with the applicable legislation and may require additional hygienic installation
measures.
• In accordance with the applicable legislation, it may be required to connect a recirculation pump in between the hot
water end point and the recirculation connection of the DHW tank (the necessary piping is only provided with
the 260L model).