Installation Instructions

Heating controls

6 720 645 817 (2010/09)

8.5 Cascade switching module (0-10 V interface for systems with Direct Digital Control

(DDC))

8.6 Accessories, weather-compensated controller - remote control

ICM Application

• Cascade module for switching two condensing boilers (MKB 240-3 A to MKB 560-3 A)

in conjunction with FW 200 or FW 500

• Communication with the condensing boilers and the controller via 2-wire BUS

• Function status LED for each boiler in the cascade

• Automatic load distribution to the connected condensing boilers

• Inputs

– NTC flow temperature sensor, for low loss header

– NTC outside temperature sensor

– External safety equipment, floating

– Heating circuit controller (ON/OFF contact), floating (24 V DC)

– Heating circuit controller (potential interface) 0 - 10 V

– 0-10 V interface, e.g. for DDC or third party controls

– Boiler communication (4 x via 2-wire BUS)

• Outputs 230 V AC, 50 Hz

– For further modules ICM: 230 V AC, 50 Hz, max. 10 A

– For pump: 230 V AC, 50 Hz, max. 2300 W

• Fault display: floating; max. 230 V, 1 A

Installation

• Wall mounting (height/width/depth: 165/235/52 mm)

• Power supply 230 V AC, 50 Hz, 10 A

Part no. 7 719 002 949

Tab. 30

FB 10 Application

• Remote control for adjusting the set value for the weather-compensated heating circuit

in conjunction with FW 100 or FW 200

• Can be used for heating circuit 1 or 2 (use the FB 100 for heating circuits 3 and 4)

• Communication with the controller via 2-wire BUS

Function

• 2-wire BUS technology, reverse polarity protected connection

• Set value adjustment for weather-compensated controller

• Room temperature display

• Fault code display

• No clock function

Installation

• Wall mounting (height/width/depth: 85/100/35 mm)

• Power supply 15 V via 2-wire BUS

Part no. 7 719 002 942

Tab. 31