Mitsubishi Heavy Industries ESA30E-25, Technical Manual

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'15 • HM-T-246
1) Unit address setting
This control system controls the communication among the controls consisted of multiple heat pump water heaters and remote con-
trols by the micro-computer built in the each control.
After setting address and the communication among the multiple heat pump water heaters is established, check the
communication method by 7-segement display of the heat pump water heater.
Do not set other than the number listed on this table.
It may cause error.
Set the address No. of heat pump water heaters within the range of 00 to 31 with SW1 and SW2.
However the Max. connectable number of heat pump water heaters is water heaters. Be sure not to set any duplicated address
2) Switching control
Control contents of heat pump water heater can be changed by dip switches on the control P CB and the software switches displayed at -segment LE D as shown in following
tables.
Control P CB
Manual address setting
How to set address
SW1 SW2
10s digit 1s digit
Put a precision screwdriver
in this groove and turn the
arrow to set the number
Switching control method Switching control contents
Setting switch on the control P CB
-segement display
–
P rimary setting operation
–
Water pump test run
–
Set the external
input function demand mode.
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–
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Defrost control
(8) Control setting
8-1 General setting
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