Manual Honeywell CM721 (page 2 of 16) (English)

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Features

• Ergonomicuserinterfacefeaturingan‘OK-button’.

• LargeLCD(LiquidCrystalDisplay)Screen

• 4independenttemperaturelevels(from5°Cto35°C).

• AutomaticSummer/WinterTimeChange.

•

OptimumStarttoachievetherighttemperatureatthe

righttime.

• Built-inMemoryholdstheuserprogramindenitely.

Description

The Honeywell CM721 is a

programmable room thermostat

designed to control your heating

system efciently, providing

comfortable temperatures when

you are at home and energy

savings when you are away. The

following instructions explain how

toprogramandusethethermostat

toprovidethemosthome comfort

attheleastcost.

Controls Layout

LCDScreen

BatteryLowIndicator

TimeDisplay

BurnerOnIndicator

TemperatureDisplay

6 11

BatteryCover

ProgramButtons

TimeChangeButtons

SetDateButton

TemperatureChangeButtons

TemperatureEnquiryButton

OperatingModeButtons

GreenOKButton

BatteryCompartment

1. . 4

AUTO

AU TO

MAN

OFF

1 2 43 5

PROGRAM

CM721

D AT E

CM721 - USER GUIDE

Green light on red light flashing box next to boiler why .
Thank youb Submitted on 6-4-2022 at 21:00
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Honeywell CM721 Manual

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