System; Ftc(Pac-If021B-E - Mitsubishi Electric PAC-IF021B-E Manual

2
System (FTC)
FTC
To start, check your system type by following the fl ow chart below. (FTC can be used for 3 types of systems.)
Heat Pump switch ON/OFF
and the operation mode
change is done...
By external signals from local controller
(non-voltage contact signals)
'Target flow temperature' is set...
By external signals from local controller
(Analog signal:4-20mA/ 1-5V/ 0-10V)
Your system is ANALOG TEMP. SYSTEM.
SIMPLE SYSTEM
FTC PCB BOX
ON/OFF
Operation mode
Target flow temp.
Remote controller
End user interface
C-4 C-4
Start
BASIC SYSTEM
By Non-voltage
Contact signals
FTC PCB BOX
ON/OFF
Operation mode
- Heating
- Heating ECO
- Hot water
- Anti freeze
- Cooling
Target flow temp.
Remote controller
To preset
- target temp. for each mode
- target temp. parameters
(See Page C-57-58 for details)
By remote controller
By remote controller
ANALOG TEMP. SYSTEM
FTC PCB BOX
System controller
(locally supplied)
End user interface
Remote controller
To preset
- analog signal parameters
(See Page C-81 for details)
Flow temp. controller
Your system is
SIMPLE SYSTEM.
Your system is
BASIC SYSTEM.
By Non-voltage
Contact signals
ON/OFF
System controller
(locally supplied)
Operation mode
- Heating End user interface
- Cooling
Target flow temp.
Analog signal
4-20mA/1-5V/0-10V
In this system,
• Heating ECO mode of FTC is
not available.
• It is NOT necessary to switch
operation mode to realize
Hot water mode, Anti freeze
mode and Heating ECO mode.
Simply change the target temp.
by Analog signal.