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ACCESSORIES INSTALLATION
DHW Tank
To establish DHW circuit, 3way valve and DHW sensor (PHRSTA0) or DHW kit (PHLTA/PHLTC) is
required kit is required.
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 for easy access and
maintenance.
- Set the maximum value of the temperature control device of DHW tank.
General Information
supports following 3way valve.
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 space heating circuit.
3) 'Flow B' means water flow from the unit to DHW tank.
※ For detailed connection refer to manufacturer's manual of the DHW tank.
DHW sensor
AB
A
B
DHW
3way-valve
Space heating
Cold water
Hot water
DHW TANK
Type Power Operating Mode Supported
SPDT
1)
3-wire
230 V AC
Selecting Flow A
2)
between Flow A and Flow B Yes
Selecting Flow B
3)
between Flow A and Flow B Yes
WARNING
!
The schematic does not include all necessary safety devices. For details refer to Hydronic
schemes provides by local LG office.
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