Mitsubishi Electric PMCR-50VHA-200D KIT Installation Manual page 6

3. System
3.3. Third step (Heater setting)
Immersion heater
Booster heater position
Immersion heater Booster heater position
both DHW
and Heating
(Absent)
both DHW
and Heating
(Present)
Heating only
(Absent)
Heating only
(Present)
Note(*):
When the booster heater is positioned for heating only, flow water temp. thermistor (THW1) is not able to detect the outlet water temperature of circulation water during
DHW or legionella prevention mode. To determine more accurately if the heater is ON with DHW or legionella prevention mode, THW1 must be placed where it is able to
detect the outlet water temperature of circulation water. Therefore the recommended booster heater position is for both DHW and heating.
Although the booster heater is positioned for both DHW and heating, switching ON Dip SW 2-9 deactivates the booster heater during DHW or legionella prevention
mode.
en
EN-6
System diagram
DHW tank
FTC2BR
Booster
THW1*
heater
DHW tank
FTC2BR
Immersion
heater
Booster
THW1*
heater
DHW tank
FTC2BR
Booster
heater
THW1*
DHW tank
FTC2BR
Immersion
heater
Booster
heater
THW1*
Output signal
Booster heater only
4.4
4.4.3
4.5
Heat emitter
Booster heater
and
Immersion heater
4.4
4.4.3
4.5
Heat emitter
Booster heater only
4.4
4.4.3
4.5
Heat emitter
Booster heater
and
Immersion heater
4.4
4.4.3
4.5
Heat emitter