๎
Annex๎10โ3๎
๎
10.7๎Menu๎โ๎drawing๎of๎the๎menu๎to๎guide๎the๎user๎
Drawing๎of๎the๎menu๎appears๎from๎section๎12๎
10.8๎The๎start๎displa y๎
The๎start๎picture๎shown๎when๎the๎potentiometer๎has๎not๎been๎activated๎for๎10๎minutes๎
๏ท In:๎nnn%๎shows๎the๎capacity๎ordered๎by๎the๎main๎air๎handling๎unit๎controller.๎
๏ท Out:๎nnn%๎shows๎the๎capacity๎ordered๎by๎this๎internal๎controller๎โ๎LMC251๎โ๎of๎the๎compressor.๎
10.9๎Settings๎
About๎basic๎settings๎in๎the๎submenus๎in๎the๎LMC251๎
10.10๎Automatic๎resets๎of๎the๎high๎pressure ๎switch๎
This๎is๎about๎the๎maximum๎number๎of๎automatic๎resets๎of๎the๎high๎pressure๎switch๎that๎are๎acceptable๎
within๎one๎hour.๎๎If๎this๎number๎is๎exceeded,๎the๎unit๎will๎be๎shut๎down๎until๎the๎high๎pressure๎switch๎has๎
been๎reset๎manually.๎
10.11๎Polarity๎
The๎Alarm๎polarity๎can๎be๎set๎toโNormally๎Openโ ๎or๎โNormally๎Closedโ.๎
10.12๎Hotgas๎โ๎setting๎of๎period๎
This๎is๎the๎number๎of๎seconds๎that๎the๎hotgas๎valve๎is๎open.๎The๎period๎is๎relatively๎long,๎but๎the๎supply๎
temperature๎is๎not๎oscillating๎at๎all๎and๎the๎stability๎of๎the๎supply๎temperature๎is๎sufficient.๎The๎number๎of๎
seconds๎is๎a๎factory๎setting๎that๎should๎not๎be๎reduced.๎Reduction๎of๎the
๎number๎of๎seconds๎will๎not๎
improve๎the๎stability๎of๎the๎temperature๎to๎a๎degree๎that๎can๎be๎proven๎by๎measurements.๎If๎the๎number๎
of๎seconds๎is๎reduced,๎the๎number๎of๎times๎that๎the๎valve๎is๎opened๎and๎closed๎will๎be๎increased๎โ๎maybe๎
considerably,๎and๎the๎valve๎could๎be๎worn๎
out๎prematurely.๎๎
10.13๎Limiter๎
DeltaMax๎is๎the๎maximum๎acceptable๎change๎in๎%๎/๎second๎of๎the๎actual๎cooling๎capacity.๎
10.14๎Service๎
In๎this๎menu๎information๎about๎the๎software๎version๎in๎the๎controller๎as๎well๎as๎2๎submenus๎โ๎โManual๎
operationโ๎and๎โRuntimeโ๎
10.15๎Manual๎operation๎
When๎the๎menu๎โ๎Manual๎operation๎โ๎is๎activated,๎the๎technician๎is๎able๎to๎control๎the๎operation๎manually,๎
when๎the๎start๎signal๎from๎the๎main๎air๎handling๎unit๎controller๎is๎on๎(start๎signal๎is๎just๎potential๎free๎
connection๎of๎the๎two๎terminals๎โ๎3&4).๎This๎procedure๎is๎relevant๎for๎the๎test๎during
๎the๎annual๎
maintenance๎with๎the๎control๎of๎all๎safety๎and๎regulation๎procedures๎or๎after๎installation๎of๎new๎
components.๎
If๎no๎new๎settings๎have๎been๎carried๎out๎on๎the๎controller๎for๎10๎minutes,๎the๎menu๎โ๎Manual๎operation๎โ๎
is๎deactivated,๎and๎the๎unit๎returns๎to๎the๎automatic๎mode.๎
10.16๎Running๎hours๎and๎hotgas๎activations๎
In๎this๎menu๎the๎number๎of๎running๎hours๎for๎the๎compressor,๎and๎the๎number๎of๎activations๎of๎the๎hotgas๎
valve๎can๎be๎read.๎This๎information๎is๎valuable๎for๎the๎maintenance.๎
10.17๎Alarm๎
10.17.1๎Alarm๎
Show๎the๎actual๎alarm๎with๎alarm๎number.๎
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