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ACCESSORIES INSTALLATION
126
DHW Tank
To establish DHW circuit, 3way valve and DHW tank kit is required. If solar thermal system is
pre-installed at the installation field, solar thermal kit is required to interface solar thermal
system – to – DHW tank – to –
Installation condition
Installing DHW tank following considerations :
- DHW tank should be located at the flat place.
- Water quality should be complied with EN 98/83 EC directives.
- As this water tank is sanitary water tank (indirect heat exchange), do not use anti water-freezing
treatment like ethylene grycol.
- It is highly recommend to wash out inside of the DHW tank after installation. It ensures
generating clean hot water.
- Near the DHW tank there should be water supply and water drain to easy access and
maintenance.
- Set the maximum value of the temperature control device of DHW tank.
DHW Tank Sensor
(Less than 12 m)
Water In
Water Out
General Information
supports following 3way valve.
Type
1)
SPDT
3-wire
230 V AC
1) : SPDT = Single Pole Double Throw. Three wires consist of Live1 (for selecting Flow A), Live 2
(for selecting Flow B), and Neutral (for common).
2) : 'Flow A' means water flow from the unit to under floor water circuit.
3) : 'Flow B' means water flow from the unit to DHW tank.
DHW Tank
Power
Selecting Flow A
Selecting Flow B
h Water In / Water Out installation scene may
vary depending on the model.
Operating Mode
2)
between
Flow A and Flow B
3)
between
Flow A and Flow B
Supported
Yes
Yes
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