56
HYDRAULIC CONNECTION FOR INDOOR UNIT
ENGLISH
While connecting water pipes, followings should be considered.
- Pipe fittings (e.g. L-shape elbow, T-shape tee, diameter reducer, etc) should be tightened
strongly to be free from water leakage.
- Connected sections should be leakage-proof treatment by applying teflon tape, rubber bushing,
sealant solution, etc.
- Appropriate tools and tooling methods should be applied to prevent mechanical breakage of the
connections.
- Operation time of flow control valve(e.g. 3way valve or 2way valve) should be less than 90
seconds.
- Drain hose should be connected with drain piping.
WARNING
!
Water condensation on the floor
While cooling operation, it is very important to keep leaving water temperature higher than
16 °C. Otherwise, dew condensation can be occurred on the floor.
If floor is in humid environment, do not set leaving water temperature below 18 °C.
Water condensation on the radiator
While cooling operation, cold water may not flow to the radiator. If cold water enters to the
radiator, dew generation on the surface of the radiator can be occurred.
Drainage treatment
While cooling operation, condensed dew can drop down to the bottom of the indoor unit. In
this case, prepare drainage treatment (for example, vessel to contain condensed dew) to
avoid water drop.
Water Pipe Insulation
Purpose of water pipe insulation is :
To prevent heat loss to external environment.
To prevent dew generation on the surface of the pipe in cooling operation.
To prevent pipe breakage by freeze at winter season.
※
Must be insulation at exterior water pipe between product and building.