York R-410A, Technical & Service Manual, Page: 337 / 385

Controller
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3.2 Electricity billing base reading window
After the user name and password are entered, you can enter the billing base reading
selection window, shown as follows
：
3.2.1 The system default electricity billing base is the last reading of the database.
3.2.2 If the latest meter reading is selected as the calculation base, the system checks the watt-
hour meter in the first cycle during system operation without any calculation. Normally, the last
reading of the database shall be used as the calculation base of electricity billing, except watt-
hour meter replacement.
3.3 System parameter setting
3.3.1 The port of network air conditioning system may be selected according to the actual
condition of computer in use.
3.3.2 Building system interface is the port interfacing with LON gateway and shall be selected as
per the actual condition.