Fujitsu UTY-VDGX Installation Manual - Page 17
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8.2. Dip switch setting
(1) Capacity settings of indoor units to be controlled
The capacity of indoor units to be controlled is set.
Indoor unit
Dip switch setting (*: factory setting)
capacity
SET1-1
SET1-2
5.0 kW *
ON
OFF
6.3 kW
ON
OFF
8.0 kW
ON
ON
10.0 kW
OFF
ON
12.5 kW
OFF
ON
14.0 kW
ON
ON
20.0 kW
ON
OFF
25.0 kW
OFF
ON
40.0 kW
ON
OFF
50.0 kW
OFF
ON
Not described
Settings prohibited
above
(2) Setting digital input signal methods
• Select either edge method or pulse method as the external inputs signal method.
DIP switch SET2-2
Digital input signals format
OFF (factory setting)
Edge
ON
Pulse
Make sure that SET2-3 and SET2-4 are always OFF.
(3) Analog external inputs method
• You can select the item to be controlled using analog external inputs from the external
controller (either "Operation temperature" or "Required operation performance").
• Make the DIP switch SET3-1 settings before making the SET3-2 settings.
• Make sure to set a connection status that uses the external controller.
• If SET3-1 is ON, VRF device controls will be disabled.
(i) Analog external inputs ON/OFF
DIP switch SET3-1
Analog external inputs ON/OFF
OFF (factory setting)
OFF
ON
ON
(ii) Control items
• The items to be controlled are selected according to the device status that uses the
external controller.
DIP switch SET3-2
Control conditions
OFF (factory setting)
Operation temperature
ON
Required operation performance
(4) AC (air conditioning.) control settings
• Select the AC control format from either "outlet temperature control" or "inlet temperature
control".
DIP switch SET3-3
Temperature control position
OFF (factory setting)
Outlet temperature control
ON
Inlet temperature control
Make sure that SET3-4 is always OFF.
(5) RB unit bypass circuit feasibility
• If connecting the RB unit and a general indoor unit 1-to-1 in the heat recovery system
unit, confi gure a bypass circuit in the RB unit when the heat thermostat is OFF.
• Prevents hot air from outlet when the heat thermostat is OFF.
• If the indoor unit is 40kW or 50kW type, the RB unit cannot be connected.
DIP switch SET4-3
OFF (factory setting)
No bypass
ON
With bypass
(6) Administrative indoor unit setting
• You can set the DX-kit as the "administrative indoor unit" from among multiple indoor
units (including the DX-kit) connected using the same refrigerant system (or RB unit).
• Only one administrative indoor unit can be set using the same refrigerant system (or RB
unit).
If forming the remote controller group,set this DIP switch "OFF".
DIP switch SET4-4
Administrative indoor unit settings
OFF (factory setting)
OFF
ON
ON
• Precautions if using the DX-kit as the administrative indoor unit
If the "Administrative indoor unit setting"is "ON" for another indoor unit connected to the
same refrigerant system (or RB unit), make sure to turn "OFF" that setting. For details, see
the wired remote controller installation manual.
• When connecting the wired remote controller to the DX-kit, set this switch to OFF. (Set
the "Administrative indoor unit setting" with the wired remote controller.)
Make sure to set SET4-1 and SET4-2 to always OFF.
(7) Remote controller selections
The cable type of wired remote controller has been selected.
DIP switch SW1
Wired remote controller cable type
2WIRE (factory setting)
2 wire type
3WIRE
3 wire type
SET1-3
SET1-4
SET2-1
ON
OFF
OFF
ON
OFF
ON
ON
OFF
OFF
ON
OFF
ON
OFF
ON
OFF
OFF
ON
OFF
ON
ON
OFF
ON
ON
OFF
OFF
ON
ON
OFF
ON
ON
8.3. Function setting
• FUNCTION SETTING can be performed with the wired or wireless remote controller.
(The remote controller is optional equipment)
• Refer to the wired or wireless remote controller manual for detailed setting information.
(Set IU AD, REF AD SW to 0)
• Refer to "8.1. Setting the address" for indoor unit address and refrigerant circuit address
settings.
• Turn the power of the indoor unit ON before starting the setting.
* Turning on the power to the indoor units initializes EEV, so make sure the piping air
tight test and vacuuming have been conducted before turning on the power.
* Also check again to make sure no wiring mistakes were made before turning on the
power.
Function details
Function
Function
Setting number
number
00
Standard
Filter
indicator
11
01
Longer
interval
02
Shorter
00
Enable
Filter
01
Disable
indicator
13
Display only on
action
02
central remote
controller
00
Enable
Auto
40
restart
01
Disable
00
Super low
Follow the
Cool Air
43
setting on
Prevention
01
the remote
controller
00
All
Error report
47
Display only on
target
01
central remote
controller
Switching
00
Mode 0
functions
for external
inputs and
60
external
01
Mode 1
outputs
terminals
00
Mode 0
Selecting
stop
operation
01
Mode 1
64
during an
external
error
02
Mode 2
Default
Details
○
Adjust the fi lter cleaning interval notifi -
cation. If the notifi cation is too early,
change to setting 01. If the notifi cation
is too late, change to setting 02.
○
Enable or disable the fi lter indicator.
Setting 02 is for use with a central
remote controller.
Enable or disable automatic system
○
restart after a power outage.
Restrain the cold airfl ow with making
the airfl ow lower when starting
heating operation.
○
If using Outlet temperature control
(DIP switch SET3-3: OFF) , set this
function"01".
○
Change the target for reporting errors.
Errors can either be reported in all lo-
cations, or only on the central remote
controller.
○
The connection terminal functions can
be changed depending on the type
of external device. For details of the
connection terminal functions, see the
Design & Technical Manual.
○
Thermostat off
Thermostat OFF + fan stop
Thermostat OFF + fan stop + outdoor
unit stop
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