Mitsubishi Electric PAC-IF081B-E Installation Manual page 58

10. Multiple outdoor units control
10.7 Connecting inputs/outputs
<Electrical connection for main controller>
• Refer to "4.5 Connecting inputs/outputs"
<Electrical connection for sub controller>
PAC-IF08*B-E
<Fig. 10.7.1>
Thermistor inputs
Name Terminal block Connector
TH2 — CN21
THW1 — CNW12 1-2 Thermistor (Flow water temp.)
THW2 — CNW12 3-4 Thermistor (Return water temp.)
Note:
Do not splice the wiring to extend or shorten it, or this could affect correct monitoring of each temperature.
If the wiring is too long, bundle it with a strap to adjust the length.
Outputs
Name Terminal block Connector Item
OUT1 TBO.1 1-2 CNP1
OUT4 TBO.2 7-9
TBO.2 8-10 CNV1
OUT13 TBO.4 3-4
N L
TBO.1 1 2 3 4 5 6
OUT1
Wiring specification and local supply parts
Item Name
External output function Outputs wire
en
Note:
1. Do not connect multiple water circulation pumps directly to each output (OUT1). In such a case, connect them via (a) relay(s).
2. Stranded wire should be processed with insulation-covered bar terminal (DIN46228-4 standard compatible type).
57
Signal inputs
Name Terminal block
RC
IN2
INA1
Wiring specification and local supply parts
Item
Signal input function
Item
Thermistor (Ref. liquid temp.)
Water circulation pump 1 output
— 3-way valve SPST (2-way valve 1) output
3-way valve SPDT output
— 2-way valve 2 output
L N L
TBO.2 1 2 3 4 5 6 7 8 9 10
OUT4 OUT4
(SPST) (SPDT)
Model and specifications
Use sheathed vinyl coated cord or cable : 30 m max.
Wire type: CV, CVS or equivalent
Wire size: Stranded wire 0.25 mm² to 1.5 mm²
Solid wire: 0.25 mm² to 1.5 mm²
Connector Item
TB5 1-2 — Communication cable between indoor units
TBI.1 5-6 — Flow switch 1 input
TBI. 6 3-5 CN1A Flow sensor input
Name Model and specifications
Signal input wire Use sheathed vinyl coated cord or cable: 10 m max.
Wire type: CV, CVS or equivalent
Wire size: Stranded wire 0.13 mm² to 1.25 mm²
Switch Non-voltage "a" contact signals
Remote switch: minimum applicable load 12 V DC, 1 mA
OFF ON
OFF ON
Heating DHW
DHW Heating
TBO.3 1 2 3 4 5 6 7 8 TBO.4
<Fig. 10.7.2>
Connect them using either way as shown above.
Solid wire: ø0.4 mm to ø1.2 mm
Optional part model
—
—
—
Signal/Max. current
230V AC 1.0 A max.
230V AC 0.1 A max.
230V AC 0.1 A max.
N L
1 2 3 4 5 6 7 8 TBO.5 1 2 3 4 5 6 7 8
OUT13
How to use TBO.1 to 5
Tool
Conductor
Outline view
<Fig. 10.7.3>
Tool
Conductor
Top view