Toshiba HWS-455XWHM3-E Manuel D'installation page 11

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Hydro Unit
 Example of 2-zone temperature control and hot water supply
system
The following shows an example of the 2-zone temperature control.
A buffer tank and a water pump are required for the 2-zone temperature control.
▼ Fig. 5-02
Strainer (40 mesh / 0.4 mm)
Drain Cock for water
Charge and Drain
Indirect Sanitary Hot
Water Cylinder
Isolating
Valves
(Service)
Diverting
3-Way
Valve for
Sanitary
Hot
Water
Cylinder
M
TTW
M
– 10 –
Hi-Pressure
Temperature
By-Pass
Regulating
Valve
Valve
(Mechanical)
TRV
Temp.
Regulating
Valve
(Mechanical)
TRV
Motorized 2-Way Valve
is required if fan coil
M
units are in cooling
operation.
Mixing 3-Way
Valve for Under
Floor Heating
TFI
Direct Buffer tank for
Under Floor Heating
Installation Manual
Zone 1
Fan Coil Unit (Heating
or Cooling)
External Pump for
Under Floor Heating
Zone 2
Under-floor Heating
(2-Way Valve Control)
EN
10-EN

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