Mitsubishi Electric EHSD-MED Service Manual page 20

Local system
1-zone temperature control
2-zone temperature control
11
6
2
2-zone temperature control & Buffer tank control
3
4
12
*1
6
9
2
8
1. Zone1 heat emitters (e.g. radiator, fan coil unit) (local supply)
2. Mixing tank (local supply)
3. Zone1 flow water temp. thermistor (THW6)
4. Zone1 return water temp. thermistor (THW7)
5. Zone1 water circulation pump (local supply)
6. Motorized mixing valve (local supply)
7. Zone2 flow water temp. thermistor (THW8)
8. Zone2 return water temp. thermistor (THW9)
9. Zone2 water circulation pump (local supply)
OCH712C
Zone1
1
Zone1
3
5
4
1
Zone2
9
7
8
10
Zone1
5
1
Zone2
7
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. Zone2 heat emitters (e.g. underfloor heating) (local supply)
11. Boiler flow water temp. thermistor (THWB1)
12. Mixing tank thermistor (THW10)
13. Boiler (local supply)
14. Zone1 2-way valve (local supply)
15. Zone2 2-way valve (local supply)
16. Bypass valve (local supply)
ONLY Buffer tank control (heating/cooling) applies to "Smart grid ready".
*1
20
Zone1
1
Zone1
Zone1
14
1
Zone2
15
10
Optional part:
PAC-TH012HT(L)-E
*1
1