Mitsubishi Electric PAC-IF071B-E Installation Manual page 20

4. Electrical work
4.5 Connecting inputs/outputs
For multiple outdoor units control with FTC (Sub), see section 9.
Signal inputs
Terminal Con-
Name Item
block nector
IN1 TBI.1 7-8 — Room thermostat 1 input *1 Refer to SW2-1 in <5.1 DIP Switch Functions>.
IN2 TBI.1 5-6 — Flow switch 1 input
IN3 TBI.1 3-4 — Flow switch 2 input (Zone1) Refer to SW3-2 in <5.1 DIP Switch Functions>.
IN4 TBI.1 1-2 — Demand control input
IN5 TBI.2 7-8 — Outdoor thermostat input *2 Standard operation
IN6 TBI.2 5-6 — Room thermostat 2 input *1 Refer to SW3-1 in <5.1 DIP Switch Functions>.
IN7 TBI.2 3-4 — Flow switch 3 input (Zone2) Refer to SW3-2 in <5.1 DIP Switch Functions>.
IN8 TBI.3 7-8 — Electric energy meter 1
IN9 TBI.3 5-6 — Electric energy meter 2
IN10 TBI.2 1-2 — Heat meter
IN11 TBI.3 3-4 —
Smart grid ready input
IN12 TBI.3 1-2 —
INA1 TBI.4 1-3 CN1A Flow sensor input
*1. Set the ON/OFF cycle time of the room thermostat for 10 minutes or more; otherwise the compressor may be
damaged.
*2. If using outdoor thermostat for controlling operation of heaters, the lifetime of the heaters and related parts may
be reduced.
*3. To turn on the boiler operation, use the main remote controller to select "Boiler" in "External input setting"
screen in the service menu.
*4. Connectable electric energy meter and heat meter
● Pulse type Voltage free contact for 12VDC detection by FTC
(TBI.2 1 pin, TBI.3 5 and 7 pins have a positive voltage.)
● Pulse duration Minimum ON time: 40ms
Minimum OFF time: 100ms
● Possible unit of pulse 0.1 pulse/kWh
100 pulse/kWh
Those values can be set by the main remote controller. (Refer to the menu tree in "7.2 Main remote controller".)
*5. As for the smart grid ready, refer to "4.9 Smart grid ready".
*6. Connectable flow sensor
● Power supply 5 V DC
● Measuring range 5 to 100 L/min
Those values can be set by the main remote controller. (Refer to <Auxiliary setting> on this page.)
● Flow signal 0.5 V (at minimum flow rate) to 3.5 V (at maximum flow rate)
Wiring specification and local supply parts
Item Name
Signal input Signal input
function wire
Switch
Note:
Stranded wire should be processed with insulation-covered bar terminal
(DIN46228-4 standard compatible type).
<Auxiliary settings>
This function is used to set the parameters for any auxiliary parts used in the system
Menu subtitle
Economy settings for pump
Delay
Electric heater (Heating)
Delay
Electric heater (DHW)
Delay
Mixing valve control *2 Running
en
Interval
Flow sensor *3 Minimum
Maximum
*1. Decreasing "time before pump switched off" may increase the duration of stand-by in Heating/Cooling mode.
*2. Set the Running time according to the specifications of the actuator of each mixing valve. It is recommended to set the interval to 2 minutes that is a default value.
With the interval set longer, it could take longer to warm up a room.
*3. Do not change the setting since it is set according to the specification of Flow sensor attached to the indoor unit.
19
OFF (Open)
Refer to SW2-2 in <5.1 DIP Switch Functions>.
Normal
*4
*5
*6
1 pulse/kWh
1000 pulse/kWh
Model and specifications
Use sheathed vinyl coated cord or cable.
Max. 30 m
Wire type: CV, CVS or equivalent
Wire size: Stranded wire 0.13 mm² to 0.52 mm²
Solid wire: ø0.4 mm to ø0.8 mm
Non-voltage "a" contact signals
Remote switch: minimum applicable load 12 V DC, 1 mA
Function/ Description
Water pump stops automatically in certain period of time from when operation is finished.
Time before pump switched off*1
To select "WITH booster heater (ON)" or "WITHOUT booster heater (OFF)" in Heating mode.
The minimum time required for the booster heater to turn ON from after Heating mode has started.
To select "WITH (ON)" or "WITHOUT (OFF)" booster heater or immersion heater individually in DHW mode.
The minimum time required for the booster heater or immersion heater to turn ON from after DHW mode has started.
(This setting is applied for both booster and immersion heater.)
Period from valve fully open (at a hot water mixing ratio of 100%) to valve fully closed (at a cold water mixing ratio of 100%)
Interval (min) to control the Mixing valve.
The minimum flow rate to be detected at Flow sensor.
The maximum flow rate to be detected at Flow sensor.
ON (Short)
Heat source OFF/ Boiler operation *3
Heater operation/ Boiler operation *3
10 pulse/kWh
TBO.1
1
2
1
3
CNP1
F2 F1
4 (WH)
3
5
6
1
1
CNP4
1 TBO.2
(RD)
LED1
3
2
SW5
3
4
5
8
1
6
1
CNV1
3
TBO.3
1 (WH)
5
2 SW4
3
4 6
1
5
6
7
LED2
SW3
8
TBO.4
1
8
2
1
LED3
3
4
5 SW2
6
7
8
8 1
CNIH 1
(OG)
TBO.5
3
1
1
2 1
SW1
CNBHT
3 SW6
(BK)
LED4
3
4
5 5
8
6
7
8
TAB1
CN401
CN1A CNW5 CNW12 CN21
(WH) (WH) (BU) (RD) (YE)
1 1 1 1
1
3
4 4 4 4
8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1
TBI.1 TBI.2 TBI.3 TBI.4 TBI.5
<Fig. 4.5.1>
1
CN01
3
(BK)
5
1
CN3C
(BU)
3
1
CNPWM
(WH)
3
1
CNRF
(WH)
5
1
CN105
(RD)
5
1
CNIT
(BU)
5
CN108
CN20
(RD)
1
2
8 7 6 5 4 3 2 1
TBI.6