Maintenance - Toshiba HWS-455XWHM3-E Installationshandbuch

Hydro Unit
• Cover the TFI sensor's cables and sensor with insulation tube (minimum 1 mm) shown in the diagram on the
right.
▼ Fig. 9-03
M
Direct Buffer tank for
Under Floor Heating
Setting for second remote controller
• Prepare the optional second remote controller.
• Connect the cable to terminals TB07 A,B of the Hydro unit and remote controller.
10

Maintenance

Execute periodic maintenance at least once a year.
Check points
• Check all electrical connections and make adjustments if they are necessary.
• Check the water pipes of the heating systems in particular any evidence of leakage.
• Check the expansion tank inner pressure. If it is insufficient, enclose nitrogen or dry air in the tank.
• Check that the hydraulic pressure is 0.1 MPa (1 bar) or more with a water manometer. If it is insufficient, replenish
tap water.
• Clean the strainer.
• Check the pump for an abnormal sound or other abnormalities.
55-EN
TFI
Zone 2
Under-floor Heating
(2-Way Valve Control)
▼ Fig. 9-04
Insulation tube (minimum 1 mm)
2 Zone hot water supply pipe
– 55 –
Installation Manual
TFI Sensor
Tying up
More than 4 mm