Hitachi EV-1.5N1, Service Manual

Page: 107 / 480

4. Electrical wiring
93
SMGB0079 rev.0 - 01/2013
4
4.3.2 Function of the of DIP switches and RSW switches
N O T E
• The mark “■” indicates the position of dips switches.
• No mark “■” indicates pin position is not affecting.
• The figures show the settings before shipment or after selection.
D A N G E R
Before setting dips switches, first turn the power source off and then set the position of the dips switches. In case
of setting the switches without turning the power source off, the contents of the setting are invalid.
DSW301 (Only RAS-(2/2.5)HVNP and RAS-3HVNC units): Test run mode
Setting before shipment
1 2 3 4 5 6
ON
Cooling
Heating
Forced stop of compressor
DSW1 (Only RAS-(2/2.5)HVNP and RAS-3HVNC units): No setting is required
When set pin number 1 to ON, the electric
current detection is cancelled. Pin number
1 should be set back to OFF after electrical
work
DSW1 (RAS-(3-12)H(V)N(P/C)(E): For Test Run
Factory setting
Cooling
Heating
Cooling for intermediate season
Heating for intermediate season
Forced stop of compressor
N O T E
• This operation is reset once the compressor is in Thermo-ON mode.
• During the test run operation the units will operate continuously during 2 hours without Thermo-OFF and the
3-minute guard for compressor protection will be effective.