Daikin GYEQ20AN Service Manual page 74

Wiring Manual
a
3. Setting and Rewiring the Outdoor Unit
3
. Setting and Rewiring the Outdoor Unit
Configuring the Outdoor Unit DIP Switches
CAUTION
Be sure to check the DIP switch settings whether or not you want to change the factory default settings.
After changing any DIP switch setting or connector, you have to turn the power off and back on for the
new setting to take effect.
When you want to reset the outdoor unit power supply, turn off the power and make sure that none of the
LEDs on the circuit board are lit before turning back on the power. An attempt to reset the power supply
with any LED lit may fail due to electricity remaining in the circuit.
Configuring the DIP switches on the main circuit board
Use the following tables to check/configure the DIP switches:
SW
Name
No.
DSW1 Piping length
(equivalent length)
Heating temperature
level
Cooling/heating
selection priority
Fuel gas type
63
Before accessing the DIP switches, turn off the power and make sure that none of
the LEDs on the circuit board are lit. Attempting to access the DIP switches with
any LED lit could result in an electrical shock due to electricity remaining in the
circuit.
Parameter Description
1 2
off off Piping length is 30 m or less.
on off Piping length is between 30 m and 80 m.
off on Piping length is between 80 m and 130 m.
on on Piping length is 130 m or more.
3 4
Heating temperature level is set to
off off
"Standard".
on off Heating temperature level is set to "Low".
off on Heating temperature level is set to "High".
Heating temperature level is set to "Outdoor
on on
Air Temperature Processing".
on Priority to the indoor unit (remote controller)
off Priority to the outdoor unit
6 7 8
off off off Natural gas
On-site
Factory
configuration
default
1: off
Required
2: off
Configure
3: off when
4: off required.
Configure
when
on
required.
Factory
default Confirmation
Depending on
specification
– 6 –
SiAUY361411EA
Remarks
Be sure to set the switch on.
only
0FGHP-EN0821 DGJ002
Device Overview