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6-1. Parts Purchased Separately
Prepare the following parts to install this device.
[Parts to be Purchased Separately]
[Commercially available parts]
6 Installation
Required Part Specification
Unit fixing screws M4 screw × 4 (* M4: ISO metric screw thread)
Power supply for this
device
Commercially available power source: 24 VDC±10% 0.2 A (Minimum loading), SELV circuit, power line with
grounding terminal
Ripple noise: Lower than 200 mVp-p
Compatible specification
Authorized or CE marked products.
Subject to regulations: - IEC60950 (or EN60950)
- CISPR22/24 (or EN55022/24)
- IEC61000-3-2/3-3 (or EN61000-3-2/3-3)
Power supply for
sensors
A separate power supply for sensors may be required.
In the case of 24 VDC voltage, the capacity of the power supply for this unit can be increased so that the
power supply can be shared.
Power line
Use a sheathed vinyl cord or cable.
At least 0.75 mm² (AWG18)
M-NET transmission
line
Type of the cable: Sheathed vinyl cords or cable which comply with the following specifications or
equivalent.
• CPEV Φ1.2 mm to Φ1.6 mm • CVVS 1.25 mm² to 2 mm² (AWG 16 to 14)
* CPEV: PE insulated PVC jacketed shielded communication cable
* CVVS: PVC insulated PVC jacketed shielded control cable
PE: Polyethylene PVC: Polyvinyl chloride
Power needs to be supplied to the M-NET circuitry of this device. Use an outdoor unit or a separately
purchased power supply unit for the transmission line.
Signal lines
(Sensor input lines)
Shows the size of the electric wire (copper wire) that is adapted to the terminal block of this device. Refer
to the usage and cautionary items of the sensor when performing settings. However, use a line with shielded
line.
Electric wire size ···· (1) Solid wire: Φ0.65 mm (AWG21) - Φ1.2 mm (AWG16)
(2) Stranded wire: 0.75 mm² (AWG18) - 1.25 mm² (AWG16)
Single strand: At least Φ0.18 mm
Name Model Application Remark
Power supply unit PAC-SC50KUA
Power supply to the M-NET transmission line
This is not required when power is to be
supplied from an outdoor unit.
Part Use Remark
External 24 VDC
power source
Supplies power to the AI controller. Refer to "Power supply for this device" and "Power
supply for sensors" in "Required Part" above for the
capacity of the power supply.
Sensor Measures temperature and humidity. Temperature sensor (PAC-SE40TSA) cannot be
connected.