101
ACCESSORIES INSTALLATION
ENGLISH
Final check
No.Check point Description
1
Connection of Water
Inlet/Outlet
- Check if the shut-off valves should be assembled with
Water inlet and outlet pipe of the unit
- Check the location of the water inlet/outlet water pipe
2 Hydraulic pressure
- Check the pressure of supplying water by using
pressure gauge inside the unit (Monitoring screen).
- Pressure of Supplying water should be Under 3.0 bar
approximately
3 Water pump capacity
- To secure enough water flow rate, do not set water
pump capacity as Minimum.
- It can lead unexpected flow rate error CH14.
(Refer to ‘Water Piping and Water Circuit Connection’)
4
Transmission line and power
source wiring
- Check if Transmission line and power source wiring are
separated from each other.
- If it is not, electronic noise may occur from the power
source.
5 The power cord specifications
- Check the power cord specifications
(Refer to ‘Communication cable’)
6 3Way Valve
- Water should flow from Water outlet of the unit to
sanitary tank Water inlet when sanitary tank heating is
selected.
- To verify the flow direction, Make sure that the water
outlet temperature of the unit and water inlet
temperature of sanitary Water tank are similar
7 2Way Valve
- Water should not flow into under floor loop in cooling
mode.
- To verify the flow direction, check temperature at the
water inlet of the under floor loop.
- If correctly wired, this temperatures should not drop
below 16 °C in cooling mode.
8 Air Vent
- Air-vent must be located highest level of Water pipe
system
- It should be installed at the point which is easy to
service.
- It takes some times to remove air in the water system if
air purge is not performed sufficiently it may occur CH14
error. (Refer to ‘Water Charging’)
WARNING
!
Do not use an automatic air-vent, as flammable refrigerant may leak into the water circuit and
get released through an automatic valve into the building.
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