Mitsubishi Electric ecodan EHPT20X-MEHEW Installation Manual page 9

3
Technical Information
Local system
1-zone temperature control
2-zone temperature control
6
2
2-zone temperature control & Buffer tank control
17
12
*1
6
2
1. Zone 1 heat emitters (e.g. radiator, fan coil unit) (local supply)
2. Mixing tank (local supply)
3. Thermistor (Zone 1 flow water temp.) (THW6)
4. Thermistor (Zone 1 return water temp.) (THW7)
5. Zone 1 water circulation pump (local supply)
6. Zone 2 motorized mixing valve (local supply)
7. Thermistor (Zone 2 flow water temp.) (THW8)
8. Thermistor (Zone 2 return water temp.) (THW9)
9. Zone 2 water circulation pump (local supply)
Zone 1
1
Zone 1
3
5
4
1
Zone 2
9
7
8
10
Zone 1
3
5
4
1
Zone 2
9
7
8
10
Optional part : PAC-TH011-E
Optional part : PAC-TH011-E
3
5
4
2
1-zone temperature control with boiler
11
13
3
5
4
2
1-zone temperature control (2-zone valve ON/OFF control)
16
10. Zone 2 heat emitters (e.g. underfloor heating) (local supply)
11. Thermistor (Boiler flow water temp.) (THWB1)
12. Thermistor (Mixing tank water temp.) (THW10) *1
13. Boiler (local supply)
14. Zone 1 2-way valve (local supply)
15. Zone 2 2-way valve (local supply)
16. Bypass valve (local supply)
17. Zone 1 motorized mixing valve (local supply)
*1 ONLY buffer tank control (heating/cooling) applies to "Smart grid ready".
Zone 1
1
Zone 1
1
Zone1
14
1
Zone2
15
10
Optional part : PAC-TH012HT(L)-E
en
8