Hitachi Set Free mini-HNRQ1 Series, Service Manual

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54
1.3 Checking Rotary Switch and DIP Switch Settings
(1) Outdoor Unit (Factory setting)
The following diagram indicates the factory settings of DSWs on PCBs in the outdoor units.
Turn OFF all power sources before performing settings. DIP switch settings cannot be changed without first
disconnecting from the power source. (Except the DIP switch setting for test run.)
The darkened square “■” indicates the position of DIP switches.
●
By using switch DSW1, the unit will start in in 1 minute after the switch adjustment is made.
●
To simplify service and maintenance, number this outdoor unit to help distinguish it from the other
outdoor units.
Record the unit number in the right of the electrical box.
Setting is required.
Setting item Pin No.
Setting before
1
Shipment
2
3
4
5
6
Function Setting
External Input/Output Setting
DSW2
No setting is required
21
Function Setting
Test Run
Setting is required. For Test Run
Setting before Setting Item Pin No.
Shipment
1
1,2
3
Compressor Forced Stop
and Function Setting
Test Cooling Operation
Test Heating Operation
No setting is required
DSW1
4
21
TROUBLESHOOTING