Introduction; Used Symbols; Abbreviations - DeDietrich MCA 45 User Manual

MCA 45 - 65 - 90 - 115
1

Introduction

1.1

Used symbols

1.2

Abbreviations

06/09/2010 - 300024828-001-A
In these instructions, various danger levels are employed to draw the
user's attention to particular information. In so doing, we wish to
safeguard the user's safety, obviate hazards and guarantee correct
operation of the appliance.
DANGER
Risk of a dangerous situation causing serious physical
injury.
WARNING
Risk of a dangerous situation causing slight physical
injury.
CAUTION
Risk of material damage.
Signals important information.
¼ Signals a referral to other instructions or other pages in the
instructions.
4 3CE: Collective conduit for sealed boiler
4 DHW: Domestic hot water
4 Interscenario switch: Home automation switch that can be used
to centralise and control several scenarios
4 Hi: Lower heating value LHV
4 Hs: Higher heating value HHV
4 IOBL: Carrier current home automation bus
4 PPS: Polypropylene hardly inflammable
4 PCU: Primary Control Unit - PCB for managing burner operation
4 PSU: Parameter Storage Unit - Parameter storage for PCBs
PCU and SU
4 SCU: Secondary Control Unit - Diematic iSystem control panel
PCB
4 SU: Safety Unit - Safety PCB
4 3WV: 3-way valve
1. Introduction
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