Mitsubishi Electric Ecodan HUS210FTC4ST Installation Manual page 47

Electrical Installation
24
Signal Inputs
Name Terminal
IN1 TBI.1 1-2
IN2 TBI.1 3-4
IN3 TBI.1 5-6
IN4 TBI.1 7-8
IN5 TBI.1 9-10
IN6 TBI.1 11-12
IN7 TBI.1 13-14
*1. If using outdoor thermostat for controlling operation of heaters, the lifetime of the heaters and related parts
may be reduced.
*2. To turn on the boiler operation, use the main controller to select 'Boiler' in 'External input setting' screen in
the service menu.
Wiring Specification for Signal Inputs
Name
Signal input wire
Switch (or Thermostat)
Thermistor Inputs
Name Terminal
TH1 -
TH2 -
THW1 -
THW2 -
THW5 -
THW6 TBI.2 7-8
THW7 TBI.2 9-10
THW8 TBI.2 1-2
THW9 TBI.2 11-12
THWB1 TBI.2 3-4
Do not splice the wiring to extend or shorten it as this could affect correct monitoring of each temperature. If the
wiring is too long, bundle it with a strap to adjust the length. When the wires are wired to adjacent terminals, use
ring terminals and insulate the wires.
*1. The maximum length of the thermistor wiring is 5m.
*2. Except PAC-IF052B
(continued)
Function
Room thermostat 1 input
Flow switch 1 input
Flow switch 2 input (Zone 1)
Demand control input
Outdoor thermostat input (*
Room thermostat 2 input
Flow switch 3 input (Zone 2)
Use sheathed vinyl coated cable
Maximum 10m
Wire type: CV, CVS or equivalent
Wire size:
Non voltage 'a' contact signals
Remote switch: Minimum applicable load 12V DC, 1mA
Connector Item
CN20 Thermistor (Room temp) *
CN21 Thermistor (Ref liquid temp) *
CNW12 1-2 Thermistor (Flow water temp)
CNW12 3-4 Thermistor (Return water temp)
CNW5 Thermistor (DHW tank water temp) *
- Thermistor (Zone1 flow water temp) *
- Thermistor (Zone1 return water temp)*
- Thermistor (Zone2 flow water temp) *
- Thermistor (Zone2 return water temp)*
- Thermistor (Boiler flow water temp)*
OFF (Open)
Refer to SW2-1
Refer to SW2-2
Refer to SW3-2
Normal
) Standard operation
1
Refer to SW3-1
Refer to SW3-3
Stranded wire 0.5mm to 1.25mm
2
1
2
1
1
1
1
1
1
FTC4 Installation Manual
ON (Short)
Refer to SW2-1
Refer to SW2-2
Refer to SW3-2
Heat source OFF/Boiler
operation *
2
Heater operation/Boiler
operation *
2
Refer to SW3-1
Refer to SW3-3
ON (Short)
2
Optional Part
PAC-SE41TS-E
-
-
-
PAC-TH011TK-E
PAC-TH011-E
PAC-TH011-E
PAC-TH011HT-E
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