Connection To The Heating System - LG THERMA V HN0916T Installation Manual

HYDRAULIC CONNECTION FOR INDOOR UNIT
60

Connection to the Heating system

The selection of circulation pumps, valves, safety elements and pipes has to be performed by the
design engineer according to the heating/cooling capacity of the device and minimum water flow
rate.
CAUTION
!
• Before connecting the device, it is necessary to rinse the pipe system thoroughly and
remove impurities. Use suitable detergents if necessary.
• Thorough venting of the system has to be ensured. Otherwise, malfunctions in operation
may occur.
Water Piping
Assemble the supplied ball valves before connecting the Inlet ① and Outlet ② pipes.
Use a counter wrench to tighten the connections firmly.
Water Volume and Expansion Vessel Pressure
- The expansion vessel must be dimensioned in accordance with standard EN 12828. The
integrated vessel has a volume of 12 liters. If the expansion volume is not enough, and
additional vessel must be installed externally (Field supply).
- A buffer tank of 40 liters is provided as accessory. The accumulator is needed for hydraulic
balancing, ensuring unobstructed flow and defrosting.
3
1
①
②
③
④
2
Heating/Cooling inlet pipe – G1''
Heating/Cooling outlet pipe – G1''
Shut-off valve with integrated strainer
Shut-off valve
4