C110MC: Basic CPU - Install Guide




The C110MC is the master control module for the C110K system and the connection for all field devices such as dampers and wall controllers

CT24ACE Power supply:

The C110MC will accept both CT24ACE and CT24AC

C110MC casing base:

The casing is made from fire retardant ABS plastic

Electronic constant switch:

This switch is used to set the number of electronic constant zones required

Number of zones dip switch:

Use the dip switch to disable LED's on zones that are not connected

Zone motor ports:

Connect RJ12 or RJ11 zone cables to zone ports

Wall controller ports (RJ45 for C110WC):

Connect RJ45 cable from wall controller (C110WC to C110MC)



Model numbers


Power supply

24VAC 50Hz

Power connection

iZone transformer CT24ACE

Operating Temperature

Up to 65oC

Communications protocol

RS 485

Number of zones

1 to 6 (RJ11 or RJ12 connectors)

Number of electronic constant zones

0, 1, 2

Number of wall controller ports

2 x RJ 45

O/A Dimensions

Height   30 mm

Width    118 mm

Length  155 mm




The C110MC can be installed on top of the indoor fan coil unit

Do not run the blue network cables alongside 240 Volt wiring

When installing network cables down wall cavities or chasing network cables into walls, tape up and protect the RJ45 connector to avoid damage to the connectors

Always install zones in consecutive ports starting at Zone 1. The back of the C110MC is marked with the zone port numbers

Do not directly hardwire the CT24ACE into the AC unit’s power supply. This may void the warranty as it will require an electrician in the event that repair of the iZone 110 system is required

Connect Zone Damper Actuators (CZDA) to the zone ports using the RJ12 cables as shown

Connect the Wall controller(s) (C110WC) to the C110WC ports using the RJ45 cables

Only connect the power supply to the CT24AC port after all components have been connected


All new or modified systems must be initialised prior to system configuration

To initialise the system press the button on the underside of any wall controller. This button is recessed so you will need to use a pen to press the button

The time to initialise the system will vary depending on the number of motors connected


On the C110MC, set the number of active zones required on the 6 position dip switch

By moving the associated dip switch up the respective zone will be deactivated and conversely by setting the dip switch down (ON), the associated zone will be activated

On the C110MC set the number of electronic constants you require to ensure the safe operation of the system

An electronic constant is a safety feature and ensures that a predetermined number of zones remain open at all times even if all the zones are switched off

If 1 electronic constant is selected, Zone 1 will automatically open if all the zones are closed.

If 2 electronic constants is selected, Zone 1 and 2 will automatically open if all the zones are closed.