Main functions:
DATE---Date setting
Timed heat---backup heating
Circle---Hot water circulation
LOAD---Setup Loading tank1
COL---Collector1
PUMP---Pump control mode
COOL---Cooling function
AUX---Auxiliary function
MAN---Manual mode
BLPR---Blocking protection function
OTDI---Thermal disinfection function
OPARR---Parallel relay function
OHQM---Thermal energy measurement
FS---Flow meter type selection
UNIT---C-F unit switch
OSDS---SD card
REST---reset
PASS--- password set
Holiday function
Screen Protection
Trouble Protection
Trouble Checking