SystemAir Danvent TIME - Alarm Log; Modified Software In Danfoss Frequency Converter For The Compressor; Maintenance


Annex10—4

10.17.2AlarmLog
Thelast15alarmsareloggedanditisnotpossibletodeletethem.Notime‐stampsonthestoredalarms.
10.18ModifiedsoftwareinDanfossfrequencyconverterforthecompressor
ThestandardsettingsintheDanfossfrequencyconverterhavebeenchangedin2menuitems,becausethe
safetyfunctionsinthesemenusaretransferredtotheDVU‐internalcontroller‐LMC251;
‐Inthemenuitem5‐10Terminal18,digitalinput(start),thevaluemustbechangedfrom8to0.
‐Inthemenuitem5‐12Terminal27,digitalinput(freerunninginverted),thevaluemustbechanged
from2to0.

EspeciallyforcompressorVTZ121inDVU25andDVU30aswellasforthecompressorVTZ086
inDVU20
Inadditiontotheabove‐mentioned
modifications,themodificationsbelowarenecessaryforthe
compressorVTZ121inDVU25andDVU30;
‐ Valueinmenuitem1‐90changedto2
‐ Valueinmenuitem1‐93Terminal54changedto2
UsuallytheDanfossfrequencyconverterkeepsthech angetothestandard
factorysettingsto redforever,
butifthesoftwarehasbeenturnedbacktotheoriginalfactorysettingforsomereason,theabove‐
mentionedmodificationsmustbecarried.Ifthemodificationsarenotcarriedoutcorrectly,thecompressor
willnotbeswitchedonatall.
10.19Maintenance
Generalmaintenancemustbecarriedoutaccordingtonationalandlocalregulationsbyaskilledtechnician
fromacertifiedcompany.
ListofsparepartsaswellasdatasheetsfromthemanufacturersareavailableontheCDdeliveredwiththe
unit.

Airvolume,coolingcapacity,refrigerantcontent
 DVU‐10 DVU‐15 DVU
‐20 DVU‐25 DVU‐30 DVU‐40
Widthinmm 970 1120 1270 1420 1570 1720
Heightinmm 970 1120 1270 1420 1570 1720
Lengthinmm 970 1120 1120 1270 1270 1270
Weightinkg 190 240 280 375 400 475
Powersupply
–
3phase+N+
PE
3x400V+
N+PE,
10A
3x400V
+N+
PE,16A
3x400V+
N+PE,
20A
3x400V+
N+PE,
25A
3x400V
+N+PE,
25A
3x400V+
N+PE,
32A
Nominalairvolume,m3/s 0.8 1.11 1.65 2.33 2.65 3.33
Minimumairvolume,m3/s 0.3 0.4 0.5 0.6 0.9 1.0
Testpressure,bar 28.6 28.6 28.6 28.6 28.6 28.6
Refrigerant R407C R407C R407C R407C R407C R407C
Refrigerantcontentinkg 3 3 4.5 6 6 9.8
Coolingcapacityatnominal
airvolumewhen:
Outdoor28°C/50%r.H.
Room25°C/50%r.H.
Supplyair18°C/90%r.H.
11.1kW 15.7kW 23.3kW 33.8kW 36.7kW 47.3kW
Nominalairvolume=highestairvolume,whereoutdoorairis28ºC/50%r.H.andischilledby10ºC.
