What Service Checker Can Do Si30-408
130 Service Checker Type3 Application Edition
2. What Service Checker Can Do
1. The Service Checker makes it possible to make the pass/fail judgment on and check
the performance of functional parts in the following cases.
(Thermistor, pressure sensor, solenoid valve, and four-way valve)
You should know temperature (or pressure) detected by the thermistor (or pressure
sensor):
You should check whether or not there is a difference between the temperatures
measured and detected:
You should check to be sure instructions to energize the solenoid valve (four-way valve)
are provided:
You should check to be sure the solenoid valve (four-way valves) operates according to
instructions provided from the control unit:
2. The Service Checker Operations makes it possible to check the operating conditions
of each operation control in the following cases.
(Operation mode, stepping down/protective control, and retry control)
You should know to what operation mode (i.e., cooling or heating mode) the
equipment is set:
As the compressor operating frequency does not increase, you should check whether
any stepping down control is in progress.
As the equipment repeats ON-OFF operations, you should check whether any retry
control is in progress.
3. The Service Checker makes it possible to check the conditions of and operate indoor
units in the following cases.
(The Service Checker Type3 enables the operation equal to that accomplished with
centralized controllers: With DIII-NET connected.)
You are able to check whether the compressor operating frequency is set to low or the
number of indoor units with thermostat turned ON is less than required.
Even though you are unable to enter the room due to the customer's convenience, you
are able to check the performance data of indoor unit.
You should increase the number of indoor units to be operated or the set temperature.
4. The Service Checker enables the simultaneous collection of data on multiple systems
in the following cases: With DIII-NET connected.
You should make a data comparison between defective systems and normal systems.
You should collect data in a lump at the time of maintenance.
5. The Service Checker enables the collection of DIII data (transmission data) in the
following cases: With DIII-NET connected.
You are not able to rectify the malfunctions in transmission. Therefore, you should check
the transmission data.
6. The Service Checker enables troubleshooting in places other than on site through
saving and verifying data collected, in the following cases.
As you were able to rectify failures on site, you should check the data when you get back
to office.
You should present the data as information to be appended to a report for the customer.
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