Mitsubishi Electric PAC-IF021B-E User manual

Flow temp. controller
C-1
1Installation..............................................................C-2
FTC(PAC-IF021B-E) .............................................................. C-2
FTC2(PAC-IF031B-E) ............................................................ C-3
2System ....................................................................C-4
FTC(PAC-IF021B-E) .............................................................. C-4
FTC2(PAC-IF031B-E) ............................................................ C-6
3Electrical work .......................................................C-9
FTC(PAC-IF021B-E) .............................................................. C-9
FTC2(PAC-IF031B-E) .......................................................... C-14
4Switch setting ......................................................C-19
FTC(PAC-IF021B-E) ............................................................ C-19
FTC2(PAC-IF031B-E) .......................................................... C-21
5Before test run .....................................................C-30
FTC(PAC-IF021B-E) ............................................................ C-30
FTC2(PAC-IF031B-E) .......................................................... C-31
6Controller operation ............................................C-32
FTC(PAC-IF021B-E) ............................................................ C-32
FTC2(PAC-IF031B-E) .......................................................... C-42
7Definition of analog signal..................................C-52
FTC(PAC-IF021B-E) ............................................................ C-52
FTC2(PAC-IF031B-E) .......................................................... C-53
8Troubleshooting...................................................C-54
FTC(PAC-IF021B-E) ............................................................ C-54
FTC2(PAC-IF031B-E) .......................................................... C-55
Flow temp. controller
Contents

Flow temp. controller
C-2
Installation (FTC) Flow temp. controller
1
C-2
Fig. 1-1
ON/OFF
TEMP.


FTC
1.1 Check the parts (Fig.1-1)
The FTC unit should be supplied with the following parts.
Part Name Q'ty
1FTC unit 1
2Thermistor 2
3Remote controller cable(5m) 1
4Remote controller 1
1.3 Installing the FTC unit (Photo.1-1, Fig.1-2)
1. Remove 2 screws from FTC unit and remove the cover.
2. Install the 4 screws (locally supplied) in 4 holes.
AScrew BCover
CHole for installation
1.2 Choosing the FTC unit installation
location
• Do not install the FTC unit in outdoor location as it is designed
for indoor installation only. (It is not waterproof against raindrop.)
• Avoid locations where the unit is exposed to direct sunlight or
other sources of heat.
• Select a location where easy wiring access to the power source
is available.
• Avoid locations where combustible gases may leak, be pro-
duced, flow, or accumulate.
• Select a level location that can bear the weight and vibration of
the unit.
• Avoid locations where the unit is exposed to oil, steam, or sulfu-
ric gas.
• Do not install in location that is hot or humid for long periods of
time.
22
(11.5)
Unit:mm
11.5
:5
:12
10
200
313
3-ELECTRIC WIRE INLET
When installed on a wall: Lower side
278
336
69
TB61 TB62
TB141TB142


TB6
Fig. 1-2
Photo. 1-1
BA

Flow temp. controller
C-3
Installation (FTC2) Flow temp. controller
1
C-3
Fig. 1-1
ON/OFF
TEMP.


FTC2
1.1 Check the parts (Fig. 1-1)
The FTC2 unit should be supplied with the following parts.
Part Name Q'ty
1FTC2 unit 1
2Thermistor 3
3Remote controller cable (5m) 1
4Remote controller 1
1.3 Installing the FTC2 unit ( Photo.1-1, Fig. 1-2 )
1. Remove 2 screws from FTC2 unit and remove the cover.
2. Install the 4 screws (locally supplied) in 4 holes.
AScrew BCover
CHole for installation
1.2 Choosing the FTC2 unit installation
location
• Do not install the FTC2 unit in outdoor location as it is designed
for indoor installation only. (The FTC2 circuit board and casing
are not waterproof.)
• Avoid locations where the unit is exposed to direct sunlight or
other sources of heat.
• Select a location where easy wiring access to the power source
is available.
• Avoid locations where combustible gases may leak, be pro-
duced, flow, or accumulate.
• Select a level location that can bear the weight and vibration of
the unit.
• Avoid locations where the unit is exposed to oil, steam, or sulfu-
ric gas.
• Do not install in location that is hot or humid for long periods of
time.
22
(11.5)
Unit:mm
11.5
:5
:12
10
200
313
3-ELECTRIC WIRE INLET
When installed on a wall: Lower side
278
336
69
TB61 TB62
TB141TB142


TB6
Fig.1-2
Photo. 1-1
BA

Flow temp. controller
C-4
System (FTC) Flow temp. controller
2
C-4
FTC
To start, check your system type by following the flow chart below. (FTC can be used for 3 types of systems.)
+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.
Start
‘Target flow temperature’ is set…
By remote controller
By remote controller Your system is
BASIC SYSTEM.
Your system is
SIMPLE SYSTEM.
Your system is ANALOG TEMP. SYSTEM.
Remote controller
FTC PCB BOX FTC PCB BOX FTC PCB BOX
Remote controller
System controller
(locally supplied)
SIMPLE SYSTEM BASIC SYSTEM ANALOG TEMP. SYSTEM
ON/OFF
Operation mode
Operation mode
- Heating
- Heating ECO
- Hot water
- Anti freeze
- Cooling
Operation mode
- Heating +
- Cooling
Target flow temp.
Target flow temp.
Target flow temp.
ON/OFF
Remote controller
ON/OFF
By Non-voltage
Contact signals
By Non-voltage
Contact signals
End user interface
End user interface
System controller
(locally supplied)
End user interface
To preset
- target temp. for each mode
- target temp. parameters
(See Page C-57-58 for details)
To preset
- analog signal parameters
(See Page C-81 for details)
Analog signal
4-20mA/1-5V/0-10V
Heat Pump switch ON/OFF
and the operation mode
change is done…
By external signals from local controller
(non-voltage contact signals)
By external signals from local controller
(Analog signal:4-20mA/ 1-5V/ 0-10V)

Flow temp. controller
C-5
System (FTC) Flow temp. controller
2
C-5
Refer to the relevant sections for details according to your system type.
System System diagram Power
supplies
Thermistor
(TH1, TH2)
Switch
setting
External
input
External
output
Outdoor
unit
BASIC SPLIT type
PACKAGED
type
SPLIT type
PACKAGED
type
SPLIT type
PACKAGED
type
ANALOG
TEMP.
SIMPLE
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
5
5
5
5
5
5
5
5
5
5
5
5
3.2.1
3.2.2
3.2.1
3.2.2
3.2.1
3.2.1
3.2.1
3.2.2
3.2.1
3.2.2
3.2.1
3.2.1
3.2.1
3.2.2
3.2.1
3.2.2
3.2.1
3.2.1
3.1
3.1.1
3.1
3.1.2
3.1
3.1.1
3.1
3.1.2
3.1
3.1.1
3.1
3.1.2
3.1
3.1.1
3.1
3.1.2
3.1
3.1.1
3.1
3.1.2
3.1
3.1.1
3.1
3.1.2
3.4.1
3.4.1
3.4.1
3.4.1
3.4.1
3.4.2
3.4.1
3.4.2
3.4.1
3.4.2
3.4.1
3.4.2
FTC
TH1 FTC Outdoor unit
FTC Outdoor unit
FTC Outdoor unit
FTC Outdoor unit
FTC Outdoor unit
FTC Outdoor unit
FTC Outdoor unit
FTC Outdoor unit
FTC Outdoor unit
FTC Outdoor unit
FTC Outdoor unit
FTC Outdoor unit
TH2
Local controller
ON/OFF
MODE Remote controller
(PAR-W21MAA)
Remote controller
(PAR-W21MAA)
Remote controller
(PAR-W21MAA)
Remote controller
(PAR-W21MAA)
Remote controller
(PAR-W21MAA)
Remote controller
(PAR-W21MAA)
Remote controller
(PAR-W21MAA)
Remote controller
(PAR-W21MAA)
Remote controller
(PAR-W21MAA)
Remote controller
(PAR-W21MAA)
Remote controller
(PAR-W21MAA)
Remote controller
(PAR-W21MAA)
FTC
TH1
FTC
TH1
FTC
TH1
FTC
TH1
FTC
TH1
TH2
FTC
TH1
TH2
Local controller
ON/OFF
Temp.
FTC
TH1
TH2
FTC
TH1
TH2
FTC
TH1
TH2
FTC
TH1
FTC
TH1
—
—
—
—
 
Local controller
ON/OFF
MODE
 
Local controller
ON/OFF
MODE
 
 
Local controller
ON/OFF
MODE
 
Local controller
ON/OFF
Temp.
 
Local controller
ON/OFF
Temp.
 
Local controller
ON/OFF
Temp.
 
SPLIT type : the standard outdoor unit without a plate HEX (Refrigetant-water HEX) inside
PACKAGED type : the Air to Water outdoor unit with a plate HEX (Refrigetant-water HEX) inside

Flow temp. controller
C-6
System (FTC2) Flow temp. controller
2
C-6
First step (Electrical work)
Power supplies (Outdoor only)
Remote controller or external input
Mode select Temp. setting System diagram
Remote controller
only
Outdoor unit onlyRemote controllerRemote controller
(PAR-W21MAA) (PAR-W21MAA)
3.1
3.1.1 3.2
Remote controller
and external input
Outdoor unit onlyRemote controllerLocal controller
(External input) (PAR-W21MAA)
3.1
3.1.1 3.2
3.3
3.3.1
External input and
analog input
Outdoor unit onlyAnalog inputLocal controller
(External input)
3.1
3.1.1 3.3
3.3.1
3.3.2
Power supplies Operation mode
input
Outdoor unit
FTC2
Remote controller
(PAR-W21MAA)
Outdoor unit
FTC2
Remote controller
(PAR-W21MAA)
Local controller
(ON/OFF,MODE)
Local controller
(ON/OFF,MODE,Temp.)
Outdoor unit
FTC2
FTC2
The FTC2 is designed for use with a number of heat pump systems. Please refer to the following table to find the relevant installation information
for your system.

Flow temp. controller
C-7
System (FTC2) Flow temp. controller
2
C-7
Second step (thermistor setting)
Outdoor type (SPLIT type / PACKAGED type)
Domestic Hot Water (DHW) tank
Outdoor unit type DHW tank System diagram
SPLIT type TH1: actual flow water temp.
TH2: refrigerant pipe temp.
TH5: actual DHW tank temp.
3.4
TH1: actual flow water temp.
TH2: refrigerant pipe temp.
TH5:
3.4
PACKAGED type TH1: actual flow water temp.
TH2:
TH5: actual DHW tank temp.
3.4
TH1: actual flow water temp.
TH2:
TH5:
3.4
Thermistor
(TH1,TH2,TH5)
Outdoor unit
FTC2
DHW tank
TH1
TH5
Radiator etc.
Heat exchanger
Outdoor unit
FTC2
TH1 Radiator etc.
Heat exchanger
TH1
Outdoor unit
FTC2
DHW tank
TH5
Radiator etc.
TH2
Heat exchanger
TH1
Outdoor unit
FTC2
Radiator etc.
TH2
Heat exchanger
(Present)
(Present)
(Absent)
(Absent)

Flow temp. controller
C-8
System (FTC2) Flow temp. controller
2
C-8
Third step (Heater setting)
Immersion heater
Booster heater position
Immersion heater Booster heater
position System diagram
Booster heater
only
both DHW
and Heating
3.5
Booster heater
and
Immersion heater
both DHW
and Heating
3.5
Booster heater
only
Heating only
3.5
Booster heater
and
Immersion heater
Heating only
3.5
Output signal
Booster
heater
FTC2
Sanitary tank
Radiator etc.
Booster
heater
FTC2
Sanitary tank
Radiator etc.
Immersion
heater
Booster
heater
FTC2
Sanitary tank
Radiator etc.
Booster
heater
FTC2
Sanitary tank
Radiator etc.
Immersion
heater
(Present)
(Present)
(Absent)
(Absent)

Flow temp. controller
C-9
Electrical work (FTC) Flow temp. controller
3
C-9
FTC
3.1.1. FTC unit power supplied from outdoor unit
The following connection patterns are available.
The outdoor unit must be powered properly. (Details are shown in its installation manual.)
S1
S2
L
N
S1
S2
S3
S3
AB C
D
E
FA Outdoor unit power supply
B Earth leakage breaker
C Wiring circuit breaker or isolating switch
D Outdoor unit
E FTC unit/outdoor unit connecting cables
F FTC unit
*1.Max. 80 m
*2.The figures are NOT always against the ground.
S3 terminal has DC 24 V against S2 terminal. However between S3 and S1, these terminals are not electrically insulated by the transformer or other device.
Notes: 1. Wiring size must comply with the applicable local and national codes.
2. Power supply cables and FTC unit/outdoor unit connecting cables shall not be lighter than polychloroprene sheathed flex-
ible cable. (Design 60245 IEC 57)
3. Install an earth wire longer than other cables.
FTC unit-Outdoor unit
FTC unit model
*1
FTC unit-Outdoor unit earth *1
FTC unit-Outdoor unit S1-S2 *2
FTC unit-Outdoor unit S2-S3 *2
PAC-IF021B-E
AC 230 V
DC24 V
1× Min.1.5
3×1.5 (polar)
Circuit
rating
Wiring
Wire No. × size
(mm
2
)
Photo. 3-2
Photo. 3-1
AB
C
E
C
D
NL
S2 S3S1
E: FTC unit/outdoor unit
connecting cables
Earth cable
TB6
3.1. FTC (Photo. 3-1)
1. Remove the cover.
2. Wire the power cable and control cable separately through the
respective wiring inlets given in the photo.
• Make sure to put screws tightly.
AInlet for control cable
BInlet for power
CClamp
DFTC / Outdoor unit connecting terminals
EEarth terminal

Flow temp. controller
C-10
Electrical work (FTC) Flow temp. controller
3
C-10
3.1.2 Separate FTC unit/outdoor unit power supplies
The following connection patterns are available.
The outdoor unit power must be powered properly (Details are shown in its installation manual).
S1
S2
L
N
L
N
S1
S2
S3
S3
ACB
D
G
E
BC
FA Outdoor unit power supply
B Earth leakage breaker
C Wiring circuit breaker or isolating switch
D Outdoor unit
E FTC unit/outdoor unit connecting cables
F FTC unit
G FTC unit power supply
If the FTC and outdoor units have separate power supplies, refer to the
table below.
Separate power supply specifications
FTC unit controller connector (CNS2)
connection change
Disconnected
Outdoor unit DIP switch settings (when
using separate FTC unit/outdoor unit
power supplies only)
ON 3
OFF 1 2 (SW8)
Set the SW8-3 to ON.
FTC unit model PAC-IF021B-E
FTC unit power supply ~/N (Single Phase), 50 Hz, 230 V
FTC unit input capacity
Main switch (Breaker)
*1 16 A
Wiring
Wire No. ×
size
(mm2)
FTC unit power supply & earth 3 × Min. 1.5
FTC unit-Outdoor unit *2 2 × Min. 0.3
FTC unit-Outdoor unit earth –
Circuit
rating
FTC unit L-N *3 AC 230 V
FTC unit-Outdoor unit S1-S2 *3 –
FTC unit-Outdoor unit S2-S3 *3 DC24 V
*1.A breaker with at least 3.0mm contact separation in each pole shall be provided. Use earth leakage breaker (NV).
*2.Max. 120 m
*3.The figures are NOT always against the ground.
Notes: 1. Wiring size must comply with the applicable local and national code.
2. Power supply cables and FTC unit/outdoor unit connecting cables shall not be lighter than polychloroprene sheathed flex-
ible cable. (Design 60245 IEC 57)
3. Install an earth wire longer than other cables.
Photo. 3-3 CNS2
NL
S2 S3S1
E: FTC unit/outdoor unit
connecting cable
Power Supply Cables
TB6