Mitsubishi Electric Ecodan EHST20 serie Para El Instalador página 47

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System Set Up
Operation settings
1.  T oaccesstheOperationsettingsmenuuseF1andF2buttonstoscroll
throughtheservicemenuuntilOperationsettingsishighlighted.
2. PressCONFIRM.
3. Operationsettingsmenuisdisplayed.
<Freeze stat function>
1. FromtheAuxiliarysettingsmenuhighlightFreezeStatFunction.
2. PressCONFIRM.
3. Thefreezestatfunctionscreenwillbedisplayed.
4.  U sebuttonsF3andF4toadjusttheminimumoutdoorambienttemperature
whichfreezestatfunctionwillbegintooperate,(3-20°C)orchoose .
  I fasterisk( )ischosenfreezestatfunctionisdeactivated.(i.e.primarywater
freezerisk)
Note: When the system is turned off, freeze stat function is not enabled.
<Simultaneous Operation>
Forperiodsofverylowoutsidetemperaturethismodecanbeused.
SimultaneousoperationallowsbothDHWandspaceheatingtoruntogetherby
usingtheheatpumpand/orboosterheatertoprovidespaceheatingwhilstonly
theimmersionheaterprovidesheatingforDHW.Thisoperationisonlyavailable
ifBOTHaDHWtankANDimmersionheaterarepresentonthesystem.
1.  F romtheOperationsettingsmenuuseF1andF2buttonstoscrollthroughthe
listuntilSimultaneousoperationishighlighted.
2. PressCONFIRM.
3. Simultaneousoperationscreenisdisplayed.
4. ToswitchsimultaneousoperationON/OFFpressF1.
5. ToalterthetemperatureatwhichsimultaneousoperationstartsuseF3andF4.
Note:
• Range of outdoor ambient temperature is −15°C to 10°C (default −15°C).
• System shall automatically return to routine operation. This will happen
when the outdoor ambient temp rises above the selected temp for this
specific mode of operation.
<Cold weather function>
Forextremelylowoutdoorambienttemperatureconditionswhentheheatpump's
capacityisrestrictedtheheatingorDHWisprovidedonlybytheelectricbooster
heater(andimmersionifpresent).Thisfunctionisintendedforuseduring
extremecoldperiodsonly.ExtensiveuseofdirectelectricalheatersONLYwill
resultinhigherelectricusageandmayreduceworkinglifeofheatersandrelated
parts.
1.  F romtheOperationsettingsmenuuseF1andF2buttonstoscrollthroughthe
listuntilColdweatherfunctionishighlighted.
2. PressCONFIRM.
3. Coldweatherfunctionscreenisdisplayed.
4. ToswitchColdweatherfunctionON/OFFpressF1.
5.  T oalterthetemperatureatwhichheaterswitchingfunctionstartsuseF3and
F4.
Note:
• Range of outdoor ambient temperature is −15°C to −10°C (default −15°C).
• System shall automatically return to routine operation. This will happen
when the outdoor ambient temp rises above the selected temp for this
specific mode of operation.
Operationsettingsmenuscreen
Freezestatfunctionscreen
Simultaneousoperationscreen
Coldweatherfunctionscreen
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