Toshiba HWT-601XWHM3W-ETR - Refrigeration Cycle; Water System Diagram; 3-1.Water System Diagram

24
3 Refrigeration cycle / Water system diagram
3-1. Water system diagram
M
M
Fan coil unit
Radiator unit
Floor heating
By-pass valve
(locally procured)
By-pass valve
(locally procured)
Motorized mixing valve
(locally procured)
AC230 V
Buffer tank (locally procured)
Circulation pump
(locally procured)
Circulation pump
max : 10 bar
Strainer
(locally procured)
40 mesh
Motorized 3-way valve
(locally procured)
AC230 V
Booster heater (local)
2-way valve for cooling mode (locally procured) AC230 V
Safety valve set : 3.5bar
Boiler
(local)
Drain cock for water charge
(locally procured)
Cylinder heater
Ø
1 : 2.7 kW
Relief valve(UK)
90 °C
10 bar
Water outlet
Water inlet
Reducing
valve (UK)
3.5 bar
Pressure relief
Set value : 7 bar (UK)
Water heat exchanger
max : 10bar
Backup heater
Ø
1 : 3 kW
Ø
3 : 6 kW
Ø
3 : 9 kW
Flow
sensor
Thermal protector
(auto)
set : 75 ± 3 °C
Thermal protector Single operation set : 95 ± 5 °C
Low pressure sensor
Expansion vessel
set : 1bar
Overpressure preventive
valve
set : 4.3bar
Manometer gage : 6bar
Air vent valve
Outdoor unit
Thermal cut-out
(manual reset)
82 °C (+3K/-2K)
zone1 zone2
TFI
TTW
TC
TWO
THO
TWI
Hot water cylinder
Local hot water system