Your Heating System; System Configuration; Important Parts Of The Units - Points To Note - Mitsubishi Electric ecodan EHST20 Serie Manual De Instrucciones

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Your Heating System

System Configuration

Model name
Cylinder unit
Outdoor heat pump unit
Model name
Hydrobox
Outdoor heat pump unit

Important Parts of the Units - Points to Note

< Hydrobox >
EHSC (Split model system) EHPX (Package model system)
1.
2.
5.
3. 4.
6.
View of base
1. Main controller
2. Manometer (Pressure gauge)
3. Space heating/Indirect DHW tank
(primary) return connection
4. Space heating/Indirect DHW tank
(primary) flow connection
. Heat pump/refrigerant connections
6. Discharge pipe from pressure relief
valve

Packaged model system
EHPT20X-
Plate heat exchanger
Interconnecting
Indoor cylinder unit
water pipes
EHPX-
Plate heat exchanger
Interconnecting
Indoor hydrobox
water pipes
ERSC (Split model system)
2.
7. 8. 4.
3.
4.
6.
View of base
7. Flow connection from heat pump
8. Return connection to heat pump
9. Drain socket
10. Cold water inlet connection
11. DHW outlet connection
12. Solar (ancillary heat source)
connection
Outdoor heat pump unit
Outdoor heat pump unit
1.
2.
3. 9.
5.
6.
View of base
13. Space heating return connection
14. Space heating flow
connection
1 Pressure relief valve
16. Automatic air vent
17. Temperature and pressure relief valve
*EHPT20X-VM2HB ONLY
Split model system
EHST20C-
Plate heat exchanger
Interconnecting
Indoor cylinder unit
refrigerant pipes
EHSC-, ERSC-
Plate heat exchanger
Interconnecting Indoor hydrobox
refrigerant pipes
< Cylinder unit >
10. 11.
12.
13.
5.
Plan view
Front elevation
14.
15.
16.
2.
1.
17.