6. Installation
9 _ Air-to-Water Heat Pump
Part 2. Desing and installation
Water condensation on the floor
While cooling operation, it is very important to keep leaving water temperature higher than 16 ℃.
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 unit. In this case, prepare drainage treatment
(for example, vessel to contain condensed dew) to avoid water drop.
Shutoff Valve
- Shut-Off Valve is used to connect water pipe to unit.
- Tighten the flare nut with two spanner. (check the leak to the connection.)
6.3 Installation Scenes
If is installed with pre-existing boiler, the boiler and should not be operated together. If entering
water temperature of is above 57 °C, the system will stop operation to prevent mechanical damage
of the unit. For detailed electric wiring and water piping, please contact authorized installer.
Some installation scenes are presented for example. As these scenes are conceptual figures, installer should
optimize the installation scene according to the installation conditions.
1) CASE 1: Connecting heat emitters for heating and cooling
(Under floor loop, Fan coil unit, and Radiator)
Room thermostat(field supply)
2way valve
(field supply)
By-pass valve(field supply)
Strainer (Mesh: 1 mm × 1 mm)
Remote controller
S
R
Air vent
Shut-off valve(field supply)
A
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