Manual Honeywell CM721 (page 4 of 16) (English)

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Period 1 2 3 4

Time 6:30 8:00 18:00 22:30

Temperature 21°C 18°C 21°C 16°C

The Built-in Heating Program

Thebuilt-inheating programhas4 temperaturelevelchanges thatcanbesetbetween3.00am

and2.50amthefollowingday-allowingyoutomaintaintheeveningtemperatureaftermidnight.

Eachtemperaturelevelcanbesetbetween5°Cand35°C,andadjustedin0.5°Cincrements.The

factorydefaultprogramforheatingisasfollows.

Reviewing the Heating Program

TorevieworedittheheatingprogramusethePROGRAM or buttonstonavigatebetween

the4individualprogrammingperiods.

Modifying the Heating Program

To change the heating program:

a. Press either of the PROGRAM  or  buttons to

entertheprogrammingmode.Thetime/temperature

settingsforperiod

willbe ashingas shown.The

active period is highlighted by a ashing square

aroundthenumbersatthebottomofthescreen.

b. Toadjusttheperiodstarttimeusethe or buttons,thedisplaywillstopashingandthe

‘OK?’indicatorwillbedisplayed.Holdingthebuttondownwillchangethetimequickly.

Note: If you are pressing the or buttons and the display ﬂashes the next period, it

means the next period will be pushed forward.

 Oncetherequiredtimeisreachedpressthegreen buttontoconrm.

Note: If the original time setting did not require adjustment press the green button to move

to step ‘d’.

 Thetemperaturesettingforperiod

willnowbeashing.Toadjustthispressthe or

buttonsandconrmthesettingagainbypressingthegreen button.

The nexttime andtemperature periodwill nowbe active.Adjustthis byrepeatingstepsb - d

aboveuntilall4periodsaresetorpresstheAUTO buttontoruntheprogramasset,atanytime.

Disabling / Enabling Time Periods

Thethermostathas4periodsthatcanbeprogrammed,butyoumaynotneedalloftheseswitch

pointsforyourheatingrequirements.Therefore,anyperiodfrom2to4canberemovedfrom(or

returnedto)theheatingprogramprole.

To disable or enable time periods:

a. Todisableunwantedperiodsgotothedesiredperiod(

to

)usingthePROGRAM or

buttonstonavigate,ensurethecorrectperiodishighlightedwiththeashingsquaresymbol.

Pressandholdthe buttonforatleast2secondsandthedisplaywillindicatetheperiodhas

beenremovedfromtheprogram.

b. Toenableperiodsagainfollowthesameprocedureasabove,navigatingtothealreadydisabled

period.Toenablethisperiodagainpressandholdthe buttonforatleast2seconds.

4321

‘Efﬁcient Daily Use’ PROGRAMMING THE CM721

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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