Mitsubishi Electric Ecodan EHSC series Installation Manual page 33

5
System Set Up
Recommended DHW system
Where system involves a DHW tank:
Immersion Booster
DHW tank
heater heater
Present Absent Present
Present Present Present
*The use of two 2-way valves can perform same function as a 3-way valve.
BH function
For space
heating/
cooling and
DHW
Hydrobox
THW1
Booster heater
THW2
For space
heating/
cooling and
DHW
Hydrobox
THW1
Booster heater
THW2
System diagram
DHW tank
THW5
Heat emitter
3-way valve (*)
DHW tank
THW5
Immersion heater
Heat emitter
3-way valve (*)
Thermistor
THW: Flow water temp.
THW2: Return water temp.
THW5: Tank water temp.
(optional part
PAC-TH011TK-E)
THW: Flow water temp.
THW2: Return water temp.
THW5: Tank water temp.
(optional part
PAC-TH011TK-E)
32