Riello NXC 021 - Pro-Dialog+ Safety Warnings; Control Panel Overview and Features

PRO-DIALOG+
76
EN
PRO-DIALOG+ CONTROL PANEL
3.1 SAFETY WARNINGS
Deviceinstallation,commissioningandmaintenanceopera-
tions
canbedangerousifsomeprecautionsarenotfollowed.
Only qualied and trained professionals must work on
the
 product and on the system.
You
arealsoremindedto:
1. Followallsafetystandardsprovidedforthistypeofinstal-
lation.
2. W
ear all personal protective equipment
provided
forbythestandard(goggles,gloves,etc.).
3.
Usesuitableequipmenttohandletheproduct(palletjacks,
cranes,etc.).
Access to
electrical
 components is allowed to qualied personnel
only.Beforestartinganyintervention,itisrecommended
todisconnecttheunitfromthepowersupplybydiscon
-
necting
thedevicefromthemains.
This product is complying with the regulation on
electromagnetic
compatibility.
For the connection of Pro-Dialog+ control panel to the
unit refer to the wiring diagrams supplied
with
themachine.
3.2 DESCRIPTION OF THE CONTROL PANEL
General information
Pro–Dialog is an electronic control panel integrated in the
units of the NXC/NXH series. It can manage:
• Compressorstarttocheckthewatercircuit
• Fans, in order to optimise the operations of each
cooling circuit.
Pr
o-Dialog+featuresthreecontroltypesontheunit:
• Through the panel on the unit or connected to it (LOCAL
mode).
• Throughdrycontacts(REMOTEmode).
• Throughaspecictool(CCNmode).
 Theselectionofthetypeofcontrolmustbesetimmediatelyon
Pro-Dialog+,
throughthecontrolkeyboard.
The Pro-Dialog+ control manages also:
• Watercirculators(oneor two):incase oftwocirculators
it
managestheautomaticswitchingbetweenthepumps.
• Heateroftheplateexchanger(ifany).
• Boiler: There is an output managing the start / stop of an
auxiliaryboiler.
Findbelowsomeabbreviationsthatwillbeoftenusedinthe
followingparagraphs.
LED LightEmittingDiode
LEN Busconnectingmotherboard  
withSlave
SCT Saturatedcondensingtemperature
SSC Saturatedsuctiontemperature
EXV Electronicexpansionvalve
PD-AUX Boardauxiliaryinput/output