EN • 2
ENGLISHFRANCAISNEDERLANDSESPAÑOLITALIANODEUTSCH
664Y2800.B
WARNINGS 3
Who should read these instructions 3
Symbols 3
Recommendations 3
Applicable standards 3
Warnings 3
INTRODUCTION 4
Totally condensing 4
Operating mode 4
Description of the specifications 6
Production of hot water 6
Frost protection 6
USERS GUIDE 7
Direction for use 7
Settings parameters 7
TECHNICAL CHARACTERISTICS 8
Natural gas categories 9
Propane categories 9
Domestic hot water features 9
ELECTRICAL CONNECTION 10
Wiring diagram 10
INSTALLATION INSTRUCTIONS 11
Dimensions 11
Hydraulic connections 11
Boiler room 11
INSTALLATION 12
Connection to the chimney 12
Connection to the gas 13
Domestic hot water connection 13
Heating connections 14
Installation of a single high temperature circuit with room thermostat ACV 15 control 15
Installation of a weather depending heating circuit high or low temperature 16
Installation of two heating circuit controlled by control unit and ZMC-1 module 18
COMMISSIONING AND MAINTENANCE 20
Commissioning the system 20
Inspection and maitenance 20
Temperature sensor resistance tables 20
Disassembling the burner 21
Disassembling and checking the electrode 21
Cleaning the heat exchanger 21
MCBA PARAMETERS FOR THE SPECIALIST 22
Standby mode 22
Setting the MCBA parameters 23
Request for information on the installation 24
Entering the code 24
MCBA parameters with code restricted access 25
Communication mode 28
Error mode 28
Safety stop [error mode] 29
INDEX
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