Installation Instructions

Heating controls

6 720 645 817 (2010/09)

8.4 Accessory for 2-wire BUS controller

IPM 1 Application

• Load switching module for switching a heating circuit pump and mixer for one mixed or

unmixed heating circuit

• Switching the cylinder primary pump and DHW circulation pump for one cylinder circuit

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

• Sensor inputs for

– 1 external flow temperature sensor, e.g. low loss header

– 1 mixer circuit temperature sensor for one mixed heating circuit

– 1 cylinder temperature sensor

• Switching outputs 230 V AC, 50 Hz, 4 A

– 1 × max. 250 W (heating circuit pump)

– 1 × max. 100 W (mixer, DHW circulation or cylinder primary pump)

• Connection for one temperature limiter

• Function status LED

Installation

• Top-hat profile rail installation or wall mounting (height/width/depth: 110/156/55 mm)

• Power supply 230 V AC, 50 Hz, 4 A

Standard delivery

• MF mixer circuit temperature sensor

Part no. 7 719 002 738

IPM 2 Application

• Load switching module for switching a heating circuit pump and mixer for up to two

mixed heating circuits

• Switching a cylinder primary pump and a DHW circulation pump for one cylinder circuit

and a heating circuit pump and mixer for one mixed heating circuit

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

• Sensor inputs for

– 1 external flow temperature sensor, e.g. low loss header

– 2 mixer circuit temperature sensors for mixed heating circuits

– 2 cylinder temperature sensors

• Switching outputs 230 V AC, 50 Hz, 4 A

– 2 × max. 250 W (heating circuit pump)

– 2 × max. 100 W (mixer, DHW circulation or cylinder primary pump)

• Connection for two temperature limiters

• Function status LED

Installation

• Top-hat profile rail installation or wall mounting (height/width/depth: 155/246/57 mm)

• Power supply 230 V AC, 50 Hz, 4 A

Standard delivery

• 2 x MF mixer circuit temperature sensors

Part no. 7 719 002 739

Tab. 29