Technical data

ManualsBrandsBenchmark ManualsHome building and DecorRD 542i combi

6 720 611 447 GB (03.11)

Details of the appliance

1 Details of the appliance

1.1 EC Declaration of Conformity

This appliance is in accordance with the applicable

requirements of the Gas Appliance Directive, Boiler Effi-

ciency Directive, Electromagnetic Compatibility Direc-

tive and the Low Voltage Directive.

1.2 Standard package

• Gas condensing combination boiler for central heat-

ing and domestic hot water

• Control panel cover

• Wall mounting frame

• Room thermostat TR2

• Fixings (screws etc.)

• Set of documentation for appliance

• Pre-plumbing manifold

• Condensate drain pipe

• Filling loop.

1.3 Description of appliance

• Wall-mounted appliance, siting not dependent on

room size

• Natural gas models are low-emission appliances

• Multi function display

• Bosch Heatronic control system with integrated text

display for service functions and faults

• 3-channel - digital timer for one heating circuit

• Variable pump

• Automatic ignition

• Modulating control

• Full safety systems incorporating Bosch Heatronic

with flame ionisation monitoring, solenoid valves and

temperature sensors

• Concentric flue/air duct with testing point for

/CO

• Regulated speed fan

• Pre-mix burner

• Temperature control for central heating

• Temperature sensor in domestic hot water

• Safety temperature limiter in 24 V electrical circuit

• Relief valve, pressure gauge, expansion vessel, Auto

air vent

• Flue gas temperature limiter (105 °C)

• Hot water priority circuit

• Motorised 3-way valve

• Plate-type heat exchange

• Condensate Trap.

PIN CE-0085 BL0507

Category UK II

2H 3P

Appliance Type C

, C

Table 1