88
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
gage inside the unit
- 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 Chapter 4 ‘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 Chapter 4 ‘Connecting Cables’)
6
3Way Valve
- Water should flow from Water outlet of the unit to DHW
tank Water inlet when DHW tank heating is selected.
- To verify the flow direction, Make sure that the water
outlet temperature of the unit and water inlet
temperature of DHW 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 be
approached to 6 °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 Chapter 4 ‘Water Charging’)
Summary of Contents for Therma V HM091MRS
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