Local System - Mitsubishi Electric ecodan EHST20 Série Manuel D'installation

3
technical information

local system

1-zone temperature control
2-zone temperature control
3
4
7
2
9
1-zone temperature control with boiler
13
14
15
3
5
4
2
6
1. Zone1 heat emitters (e.g. radiator, fan coil unit) (field supply)
2. Mixing tank (field supply)
3. Zone1 flow water temp. thermistor (THW6)
4. Zone1 return water temp. thermistor (THW7)
5. Zone1 water circulation pump (field supply)
6. Zone1 flow switch (field supply) *
7. Motorized mixing valve (field supply)
8. Zone2 flow water temp. thermistor (THW8)
9. Zone2 return water temp. thermistor (THW9)
10. Zone2 water circulation pump (field supply)
11. Zone2 flow switch (field supply) *
12. Zone2 heat emitters (e.g. underfloor heating) (field supply)
13. Boiler flow water temp. thermistor (THWB1)
14. Boiler return water temp. thermistor (THWB2)
15. Boiler
* Flow switch specifications: DC13 V / 0.1 mA / Both normally-open and normally-closed types can be used. (Set Dip switch 3 to select the logics. Refer to " 5.1 Dip
switch function".)
Zone1
1
Zone1
5
6
1
Zone2
8
10
12
11
Zone1
1
Optional part : PAC-TH011-E
Optional part : PAC-TH011-E
Optional part : PAC-TH011HT-E
3
5
4
2
6
2-zone temperature control with boiler
13
14
15
7
2
Zone1
1
Zone1
3
5
4
6
1
Zone2
8
10
9
12
11
10