Common Connections; Connecting The Gateway To The Power Supply; Connecting The Gateway To The Air Conditioning System - HMS Networks Intesis IN770AIR00XO000 User Manual

Midea commecial and VRF with KNX, Serial and IP support

5.2.2. Common Connections

5.2.2.1. Connecting the Gateway to the Power Supply

The power supply connector is a green pluggable terminal block (3 poles) labeled as Power.
IMPORTANT
• Use SELV-rated NEC class 2 or limited power source (LPS) power supply.
• Connect the gateway's ground terminal to the installation grounding.
• A wrong connection may cause earth loops that can damage the Intesis gateway and/or any other
system equipment.
Apply the voltage within the admitted range and of enough power:
• For DC: 12 .. 36 VDC (+/-10%), Max: 250 mA
• For AC: 24 VAC (+/-10 %), 50-60 Hz, Max: 127 mA
Recommended voltage: 24 VDC, Max: 127 mA
IMPORTANT
• When using a DC power supply: Respect the polarity labeled on the power connector for the
positive and negative wires.
• When using an AC power supply: Ensure the same power supply is not powering any other
device.

5.2.2.2. Connecting the Gateway to the Air Conditioning System

Connect the Midea air conditioning network bus (XY) to the gateway using the B1 and B2 poles of the AC-Port B.
INCOMPATIBILITY
The gateway cannot be connected when a central controller module (CCM) is present in the bus.
IMPORTANT
Observe polarity
NOTICE
See the wiring diagram in the gateway connectors figure:
(page 10).
Page 12 of 34
General view of all gateway connectors
USER MANUAL Version 1.0.1
Connection