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en
5. DIP switch setting
5.1 DIP switch functions
Located on the FTC printed circuit board are 7 sets of small white switches known
as DIP switches. The DIP switch number is printed on the circuit board next to
the relevant switches. The word ON is printed on the circuit board and on the DIP
switch block itself. To move the switch, you will need to use a pin or the corner of
a thin metal ruler or similar.
DIP switch settings are listed below in Table 5.1.1.
Only an authorised installer can change DIP switch setting under one’s own re-
sponsibility according to the installation condition.
Make sure to turn off both indoor unit and outdoor unit power supplies before
changing the switch settings.
For multiple outdoor units control with FTC (sub), see section 10.3.2.
DIP switch Function OFF ON
Default settings:
Indoor unit model
SW1
SW1-1 Boiler WITHOUT Boiler WITH Boiler OFF
SW1-2
Heat pump maximum outlet water temperature
55ºC 60ºC ON *1
SW1-3 DHW tank WITHOUT DHW tank WITH DHW tank
OFF:
PAC-IF081B-E
ON : PAC-IF082/083B-E
SW1-4 Immersion heater WITHOUT Immersion heater WITH Immersion heater
OFF:
PAC-IF081B-E
ON : PAC-IF082/083B-E
SW1-5 Booster heater WITHOUT Booster heater WITH Booster heater OFF
SW1-6 Booster heater function For heating only For heating and DHW OFF
SW1-7 Outdoor unit type Split type Packaged type
OFF:
PAC-IF081B-E
ON : PAC-IF082/083B-E
SW1-8 Wireless remote controller
WITHOUT Wireless remote control-
ler
WITH Wireless remote controller OFF
SW2
SW2-1 Room thermostat1 input (IN1) logic change
Zone 1 operation stop at thermostat
short
Zone 1 operation stop at thermostat
open
OFF
SW2-2 Flow switch1 input (IN2) logic change Failure detection at short Failure detection at open OFF
SW2-3 Booster heater capacity restriction Inactive Active OFF
SW2-4 Cooling mode function Inactive Active OFF
SW2-5
Automatic switch to backup heat source opera-
tion (When outdoor unit stops by error)
Inactive Active *2 OFF
SW2-6 Mixing tank WITHOUT Mixing tank WITH Mixing tank OFF
SW2-7 2-zone temperature control Inactive Active *6 OFF
SW2-8 Flow sensor WITHOUT Flow sensor WITH Flow sensor OFF
SW3
SW3-1 Room thermostat 2 input (IN6) logic change
Zone 2 operation stop at thermostat
short
Zone 2 operation stop at thermostat
open
OFF
SW3-2 Flow switch 2 and 3 input logic change Failure detection at short Failure detection at open OFF
SW3-3 — — — OFF
SW3-4 Electric energy meter WITHOUT Electric energy meter WITH Electric energy meter OFF
SW3-5 Heating mode function *3 Inactive Active ON
SW3-6 2-zone valve ON/OFF control Inactive Active OFF
SW3-7 — — — OFF
SW3-8 Heat meter WITHOUT Heat meter WITH Heat meter OFF
SW4
SW4-1 Multiple outdoor unit control Inactive Active OFF
SW4-2 Position of multiple outdoor unit control *7 Sub Main OFF
SW4-3 — — — OFF
SW4-4
Indoor unit only operation (during installation work) *4
Inactive Active OFF
SW4-5 Emergency mode (Heater only operation) Normal
Emergency mode (Heater only opera-
tion)
OFF *5
SW4-6 Emergency mode (Boiler operation) Normal
Emergency mode (Boiler opera-
tion)
OFF *5
SW5
SW5-1 — — — OFF
SW5-2 Advanced Auto Adaptation Inactive Active ON
SW5-3 — — — OFF
SW5-4 — — — OFF
SW5-5 — — — OFF
SW5-6 — — — OFF
SW5-7 — — — OFF
SW5-8 — — — OFF
SW6
SW6-1 — — —
OFF: PAC-IF081/082B-E
ON: PAC-IF083B-E
SW6-2 — — — OFF
SW6-3 Pressure sensor Inactive Active OFF
SW6-4 Analog output signal (0-10V) Inactive Active OFF
SW6-5 — — — OFF
SW6-6 — — — OFF
SW6-7 — — — OFF
SW6-8 — — — OFF
<Fig. 5.1.1>
SW1
SW3
SW4
SW2
SW5
SW6
SW7
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