SystemAir Danvent DV


Annex10—2

10.2DVU‐internalcontrollerforthecoolingcompressorsystem
TwoLEDs(lightdiodes)areplacedontheDVU‐internalcontrollerandeachoftheLEDscanbeonorflash
green,redororange.Duringnormalconditionsapermanentgreenlightindicatesthateverythingisnormal,
orangeindicatesalternativerunningmodewhileredindicatesalarm.

LED Off
Green
flashing
Green
Orange
flashing
Orange
Red
flashing
Red
UpperLED
Off‐signalfrom
mainAHU
controller
..
On‐signalfrom
mainAHU
controller
.. .. .. ..
LowerLED .. ..
Compressor
active
..
Hotgas
active
Alarm ..
Prioritiesofthecollarsare:
1. Red(highestpriority)
2. RedFlashing
3. Orange
4. OrangeFlashing
5. Green
6. GrenFlashing(Lowestpriority).
10.3Backgroundilluminationofthedisplay
Backgroundilluminationofthedisplayswitchesonautomaticallywhenthepotentiometeristurnedor
pressed.Theilluminationswitchesoffoneminuteafterthelastactivationofthepotentiometer.Byalarm
theilluminationflashesuntilthealarmisackno wledged
10.4Potentiometerontheinternalcontrollerforthecoolingcompressorsystem
ThepotentiometeristheonlytoolfortheselectionofmenusandforchangingparametersintheDVU‐
internalcontroller.Thepotentiometerisattherightsideofthedisplay.
Thepotentiometerhas3functions:
1. Turnclockwise :Gotothenextmenuitemorincreaseparametervalue
2. Turn
anticlockwise :Gotothepreviousmenuitemordecreaseparametervalue
3. Press :Selectmenu,startchangeofparameteroracknowledgeandstorenewvalue
10.5Selectionofmenu
Turntheknobtochangemenu.Whenanarrowisshowntotherightatthebottomofthedisplay,the
menuhasasubmenu.Thesubmenuisactivatedbypressingtheknobonce.Iftheknobisturnedinthe
submenuyouwillscrollbetweentheitemsinthesubmenu.

Leavethesubmenubyturningthepotentiometerclockwiseoranticlockwiseuntilthe"menuup"isshown.
Presstoleavethesubmenu.
10.6Changeparameters 
Turntheknobuntiltherequiredparameterisshowninthedisplay.Presstheknobandturnuntilthe
requiredvalueisshown.Pressthebuttononcemoretoacknowledgeandstorethevalue.
Flashingparametervalueinthedisplayindicatesthatchangesarebeingmadeandnotyetacknowledged
and
stored.