Operation manual for M RS 420 ESTYMA control unit
2
Contents
GENERAL INFORMATION .......................................................................................... 3
INTRODUCTION .........................................................................................................3
USE ............................................................................................................................4
SAFETY
PRECAUTIONS ...............................................................................................6
DISPOSAL
OF
OLD
EQUIPMENT .................................................................................7
APPLICABILITY
OF
THE
MANUAL ................................................................................7
WIRING SYSTEM ....................................................................................................... 8
GENERAL
REQUIREMENTS .........................................................................................8
LOCATION ..................................................................................................................8
ACCESSORIES .............................................................................................................9
ADDITIONAL CONTROL PANEL ..............................................................................9
ROOM TEMPEATURE REGULATOR .......................................................................9
OPERATING THE UNIT ............................................................................................. 10
MENU
NAVIGATION ................................................................................................10
BOILER
OPERATION
MODES ....................................................................................12
WEATHER-COMPENSATED MODE WITH MIXER ACTUATOR CONTROL..............12
MANUAL MODE ..................................................................................................12
SUMMER MODE .................................................................................................13
BOILER
TEMPERATURE
SETTING..............................................................................13
CONTROL
OF
THE
FOUR-WAY
MIXING
VALVE .........................................................14
HEATING
CURVE
SELECTION ....................................................................................15
AMOUNT
OF
AIR,
LAMBDA
SENSOR
–
POWER
TEST
MODE .....................................18
AIR
DURING
IGNITION .............................................................................................20
PUMPS .....................................................................................................................20
HOT
TAP
WATER ......................................................................................................20
HOT TAP WATER TEMPERATURE SETTING .........................................................20
HOT WATER PRIORITY ........................................................................................21
HOT TAP WATER HYSTERESIS .............................................................................21
HOT TAP WATER BOILER SETTING ......................................................................21
MENU
LANGUAGE ...................................................................................................22
START
UP .................................................................................................................22
FIRST
BOILER
IGNITION ............................................................................................23
ALARMS
AND
SAFEGUARDS ....................................................................................23
TECHNICAL
DATA .....................................................................................................25
