![Daikin Service Checker TYPE 3.1 Instruction Manual Download Page 11](http://html.mh-extra.com/html/daikin/service-checker-type-3-1/service-checker-type-3-1_instruction-manual_501862011.webp)
- 10 -
Chapter 2 Connection to air- conditioner
Chapter 2 Connection to air-conditioner
WARNING:
1. When using the Service Checker TYPE 3.1 in outdoor at rainy weather, be sure to
protect it from rain so that it becomes free from the danger of electric shock and
fires.
2. When leaving the Checker for a long time as it is, take proper measures against
leak current and rain water which may cause fires.
The connecting method between the Checker TYPE 3 and Daikin
’
s air-conditioning systems
consists of three : [DIII-NET connection] and [Sensor connection]. Select an appropriate one
depending on their features.
2.1 DIII-NET connection
Features of DIII-NET connection
・
Possible to monitor simultaneously the operation data of multiple outdoor and indoor
units on the DIII-NET by connecting to VRV-system air-conditioners for building and
chillers conforming to the DIII-NET in internal and external data transmission.
Units conforming to the DIII-NET are shown in the [List of applicable units] at the end of
this Manual.
(Note) The range exceeding the limits of the DIII-NET expansion adapter (DTA109A1)
is not possible to monitor.
・
To connect to the DIII-NET terminals(F1, F2) located on the PCB of an outdoor unit or
an indoor unit.
(Note) In case of an indoor unit, connect the end of the indoor unit not so as to create
sub-branching.
・
When the Service Checker TYPE 3 is connected to the DIII-NET for the first time, be
careful to note that air conditioners on the DIII-NET will be set to restart standby for
several minutes.
In performing customer management, unless PCBs are replaced or the number of air
conditioners has changed, the air conditioners will not be set to the standby state from
the second time on by utilizing the previously recorded data of network map.
・
The intervals of monitoring operation data are different depending on data items.
Besides, be careful to note that the operation data of an indoor unit are monitored at
intervals of several minutes.
・
If the length of a connecting cable for the DIII-NET is within the limits of the DIII-NET, it
is possible to lengthen the cable.
・
Not possible to use in combination with PCB connection but Sensor connection.