Flow temp. controller
C-21
Switch setting (FTC2)
Flow temp. controller
4
C-21
Ana.IN1
Non-voltage
contact
Thermostat
The functionality of the heat pump is determined by the setting of the Dip switches from SW1 to SW3, and SW6 found on the
FTC2 controller. (Photo. 4-1)
Photo. 4-1
4.1. Operation mode input method
Input method can be selected with Dip SW 1-1 / 1-2
ON/OFF Input Change mode Input Change TEMP. Input SW1-1 SW1-2 SW6-1 SW6-2
Wired remote controller
(PAR-W21MAA)
Wired remote controller
(PAR-W21MAA)
or External input
Wired remote controller
(PAR-W21MAA)
OFF OFF OFF OFF
External input
(non-voltage contact)
External input
(non-voltage contact)
Wired remote controller
(PAR-W21MAA)
ON
OFF OFF OFF
Analog input (1-5V) *1
External input
(non-voltage contact)
Analog input (1-5V) OFF
ON
OFF
ON
Analog input (4-20mA) *2
External input
(non-voltage contact)
Analog input (4-20mA) OFF
ON ON ON
External input
(non-voltage contact)
External input
(non-voltage contact)
Analog input (0-10V)
ON ON
OFF OFF
*1. 4-20mA OFF: 0 ~ 2mA
*2. 1-5V
OFF: 0 ~ 0.5V
PAR-W21MAA
FTC2
Local system controller
IN1 IN2 IN3 IN4 IN5 IN6 IN7 IN8
OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7
TH1
TH2
TH5
TH5
TH2
TH1
Flow
switch
Water
circulation
pump
Booster
heater 1
Booster
heater 2
Immersion
heater
3-port
valve
Defrost
Heating Hot
Water
Heating
ECO
Anti
freeze
Cooling
External input
Analog input
Comp
OFF
Legionella
prevention
Emergency
SW1
SW2
SW3
SW6
Error
4.2. Thermistor setting
Set Dip SW 1-3 according to whether the system has a DHW tank.
SW 1-3 Setting Notes
OFF With DHW tank Necessary to connect TH5
ON Without DHW tank NOT necessary to connect TH5
When Dip SW 1-3 is ON, DHW mode is NOT available.
Set Dip SW 1-6 according to the connected Heat pump unit type.
SW 1-6 Setting Notes
OFF SPLIT type Necessary to connect TH2
ON PACKAGED type NOT necessary to connect TH2
FTC2
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