Mitsubishi Electric PAC-IF051B-E Installation Manual page 64

. Multiple outdoor units control
. Dip switch functions
<Outdoor unit>
• Set refrigerant address on each outdoor unit from 1 to 6.
Note: Do NOT use refrigerant address 0 as 0 is used for FTC4 (Master). The address range is from 1 to .
Split model (SW1-3 to SW1-)
Refrigerant address number
Dip switch
Add. 1 Add. 2
SW1-1 — —
SW1-2 — —
SW1-3 ON OFF
SW1-4 OFF ON
SW1-5 OFF OFF
SW1-6 OFF OFF
<FTC4: Master>
• Set Dip SW4-1 and SW4-2 to ON.
• For more details refer to "5. Dip Switch setting."
<FTC4: Slave>
• Set Dip SW4-1 to ON "Active :multiple outdoor unit control".
• Set Dip SW1-7 (Outdoor unit type) on each slave unit according to each connected outdoor unit type.
• Set only Dip-SW1-3 to ON on the slave unit that runs DHW operation.
Dip switch Function
SW1 SW1-1 Bolier
Heat pump maximum outlet water
SW1-2
temperature
SW1-3 DHW tank
SW1-4 Immersion heater
SW1-5 Booster heater
SW1-6 Booster heater function
SW1-7 Outdoor unit type
Wireless remote controller
SW1-8
SW2 Room thermostat1 input (IN1) logic
SW2-1
change
SW2-2 Flow switch1 input (IN2) logic change
SW2-3 Booster heater capacity restriction
SW2-4 Cooling mode function
"Automatic switch to backup heater only
SW2-5
operation (When outdoor unit stops by error)"
SW2-6 Mixing tank
SW2-7 2-zone temperature control
SW2-8 —
SW3 Room thermostat2 input (IN6) logic
SW3-1
change
SW3-2 Flow switch2 input (IN3) logic change
SW3-3 Flow switch3 input (IN7) logic change
SW3-4 Cooling operation in zone2
SW3-5 Heating mode function
SW3-6 —
SW3-7 —
SW3-8 —
SW4 SW4-1 Multiple unit control
Position of multiple outdoor units control Slave
SW4-2
SW4-3 —
SW4-4 —
Emergency mode (Heater only
SW4-5 operation)
Emergency mode (Bolier operation)
SW4-6
*1 When FTC4 (Master) in Hydrobox is set as Slave.
*2 Set Dip SW2-6 to ON in "System 3 (2 zone)" and in "System 4 (with Boiler)" mentioned in "9.2 Pipe work."
4
Add. 3 Add. 4 Add. 5 Add. 
— — —
— — —
ON OFF ON
ON OFF OFF
OFF ON ON
OFF OFF OFF
OFF
WITHOUT Bolier
55˚C
WITHOUT DHW tank
WITHOUT Immersion heater
WITHOUT Booster heater
For heating only
Split type
WITHOUT Wireless remote
controller
Zone1 operation stop at short
Failure detection at short
Inactive
Inactive
Inactive
WITHOUT Mixing tank
Inactive
—
Zone2 operation stop at short
Failure detection at short
Failure detection at short
NOT in use
Inactive
—
—
—
Inactive
—
—
Normal
Normal
Packaged model (SW-3 to SW-)
Dip switch
Add. 1
— SW7-1 —
— SW7-2 —
OFF SW7-3 ON
ON SW7-4 OFF
ON SW7-5 OFF
OFF SW7-6 OFF
ON
WITH Bolier
60˚C
WITH DHW tank
WITH Immersion heater
WITH Booster heater
For heating and DHW
Packaged type
WITH Wireless remote controller
Zone1 operation stop at open
Failure detection at open
Active
Active
Active
WITH Mixing tank
Active
—
Zone2 operation stop at open
Abnormality detection at open
Abnormality detection at open
In use
Active
—
—
—
Active
Master
—
—
"Emergency mode (Heater only
operation) (To be activated only
when powered ON)"
"Emergency mode (Bolier
operation) (To be activated only
when powered ON)"
Refrigerant address number
Add. 2 Add. 3 Add. 4 Add. 5
— — —
— — —
OFF ON OFF
ON ON OFF
OFF OFF ON
OFF OFF OFF
Slave
Master
(PAC-SIF051B-E)
—
—
—
— —
—
—
—
—
—
—
*2 —
—
— —
—
—
—
ON ON
ON
OFF
— —
— —
—
—
: Setting is required
— : NO setting (function is not available)
Add. 
— —
— —
ON OFF
OFF ON
ON ON
OFF OFF
Slave *1
(Hydrobox)
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
ON
OFF
—
—
—
—