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 Issue                              11/06                        4

 

DMP054E

 

 

Introduction

 

The DG551C controller 

  allows the complete automatic control and management of the air-conditioning plant type 

chosen among the various applications (see, further for a list) configured and existing in the 
controller. In order to enable the required application, it is sufficient to carry out the controller 
electrical connections according to the relevant scheme and to follow the instructions in the 
present manual. 

  once the controller has been installed and connected, it is started up by simply switching on 

power supply. No configuration intervention on the part of the user is needed. The only 
necessary operations, to be carried out from the display, are to set time and time schedules. In 
any case, it will be possible, using the display, to supervise and correct the origin values of the 
variables. 

Consider that:  

 

no particular instrument, even the PC, is required to install and use DG550

.  

 

all operations are carried out through the display in a simple and user-friendly way.  

 

Start-up 

 
Once the application type, from 1 to 9, has been chosen, and the relevant connections have been 
carried out, stick the label (supplied in the package) which identifies the scheme number. This has 
the purpose to make it evident for future interventions on the plant. 
 
-   Verify that the isolating strap, protecting the battery, has been removed, as described in the 

paragraph LCD panel mounting at page 8 

-   Switch on power supply. 
-   After some moment, on the display the date and time appear. Press 

Esc.  

-   Using the navigation button, select the menu 

Set Clock

, set the current date and time and 

confirm using the Enter button. 

-

  Press 

Esc

. to go back to the start menu and verify the correct date and time are set. 

 
At this time, if the pre-set parameters related to time programming (i.e. permanent operation) and to 
the set value of the variables satisfy the plant requirements, the

 controller becomes immediately 

operating

 
In the frequent case a customised time and daily schedule is required, scroll the menu up to the 
time to be modified (primary air or fan coil) and enter the required data using the procedure 
described below. 
 
Ex. 1 Programme: Monday to Friday, on 08, off 17. Saturday and Sunday off 
 

 

On 

Off 

On 

Off 

Monday, Tuesday, 

Wednesday, 

Thursday, Friday 

08:00 

17:00 

17:00 

17:00 

Saturday, Sunday 

00:00 

00:00 

00:00 

00:00 

 

Summary of Contents for DG551C

Page 1: ...061 Fax 39 0107306870 871 E mail info controlli org Web www controlli org User Guide DG551C EUROPEAN COMMUNITY DIRECTIVES This equipment meets all requirements of European Community Directives for Low...

Page 2: ...N ONLY FOR NETWORKS WITH MORE THAN ONE CONTROLLER 8 ADDRESSING 9 WIRING 9 DG550 Terminal Connections 10 Wiring Routing Rules 10 NCP NETWORK WIRING 11 COLLEGAMENTO INGRESSI UNIVERSALI UI 11 Digital UIs...

Page 3: ...1 st Issue 11 06 3 DMP054E Manual Shutdown 33 Holidays 33...

Page 4: ...to 9 has been chosen and the relevant connections have been carried out stick the label supplied in the package which identifies the scheme number This has the purpose to make it evident for future in...

Page 5: ...protection class IP 40 and a LCD screen for displaying and entering parameters Its compact size allows easy inclusion in an electrical enclosure Two Versions of the DG550 Controller are available the...

Page 6: ...Do not mix network wiring with other types of wiring power DO AO DI or UI Digital Output Precautions Do not mix DO wiring with other types of wiring AO DI or UI Output terminals accept 1 5mm wire The...

Page 7: ...clip located on top back of controller c Using a No 10 self starting screw install top screw d Level controller e Using two No 10 self starting screws install bottom screws f Re install the terminal...

Page 8: ...8 DMP054E LCD Panel Mounting using DG510 Kit Communication only for networks with more than one controller DG550 can operate as a stand alone device or on larger installations connected to a NCP commu...

Page 9: ...e binary address c Power up the controller Example to configure address 37 set switches 1 3 and 6 to ON and the other switches to OFF position Wiring The following electrical connections can be made t...

Page 10: ...Issue 11 06 10 DMP054E DG550 Terminal Connections Wiring Routing Rules The following table shows cable types that can be routed together a Comms must always be screened b Screen UI c Screen DI d Scree...

Page 11: ...pair to the LAN and connect both wires of the other pair to one to an insulated LAN REF reference terminal s Note Connect the controller with other NCP devices in a device to device fashion Do not use...

Page 12: ...powered 0 to 10Vdc sensor is required The input impedance of a voltage input is 430kO 1 Connect one wire with positive signal from a 0 to 10 Vdc device to the desired input terminal 8 9 10 11 12 13 1...

Page 13: ...ads Each load must be externally powered Note The selected wire gauge must be consistent with load current rating 1 Review the Precautions section 2 Connect one wire from load to be switched to desire...

Page 14: ...be powered by transformers used to power other devices containing non isolated full wave rectifier power supplies If multiple devices are powered from the same transformer verify that the transformer...

Page 15: ...ording to job wiring diagram and national and local electrical codes 2 Verify 24Vac power is provided from a power transformer conforming to EN 60742 and wiring is carried out according to job wiring...

Page 16: ...witch 1 Primary air 2 coils heating cooling humidification Compensated or set point adjustment of the dew point On Off humidifier anti frost thermostat The inputs marked by are optional The stroke end...

Page 17: ...ion Compensated or set point control of hot water in winter compensated or set point control of cold water through external summer winter switch The inputs marked by are optional The stroke end if not...

Page 18: ...an coil water production Compensated or set point control of hot water in winter compensated or set point control of cold water The inputs marked by are optional The stroke end if not used must be sho...

Page 19: ...post heating humidification Compensated or set point control of dew point and supply temperature On Off humidifier anti frost thermostat The inputs marked by are optional The stroke end if not used m...

Page 20: ...fan coil water production Compensated or set point control of hot water in winter compensated or set point control of cold water through external summer winter switch The inputs marked by are optional...

Page 21: ...ing humidification Compensated or set point control of room temperature Supply limit On Off humidifier Anti frost thermostat Room temperature manual control optional The inputs marked by are optional...

Page 22: ...control of pre heating and room temperature On Off humidifier Anti frost thermostat Room temperature manual control optional The inputs marked by are optional The stroke end if not used must be short...

Page 23: ...T1 T4 P1 V1 FC1 8 2 pipe fan coil water production Compensated or set point control of hot water in winter compensated or set point control of cold water through external summer winter switch The inp...

Page 24: ...06 24 DMP054E T1 T4 T5 P2 P1 V2 V1 FC1 FC2 9 4 pipe fan coil water production Compensated or set point control of hot water in winter compensated or set point control of cold water The inputs marked b...

Page 25: ...out on each loop see the relevant submenu AHU schedule 2 On Off On Off Monday 00 00 23 59 23 59 23 59 Tuesday 00 00 23 59 23 59 23 59 Wednesday 00 00 23 59 23 59 23 59 Thursday 00 00 23 59 23 59 23 5...

Page 26: ...nd or add values to the curve In case it is necessary to delete already existing value pairs just set a saturation t value equal to the preceding one in the table Example outside t Saturation SP 20 13...

Page 27: ...primary air management with eventual pre heating Amb T 15 It displays la room temperature Read only Fixed SP 16 Value of the fixed editable SP for room temperature it is on only if the outside sensor...

Page 28: ...ed Default value 22 C Advised value 14 C Preheat Comp 21 Compensation curve for pre heating temperature outside t Pre heating SP 20 20 24 23 40 36 It is necessary to edit such curve with suitable valu...

Page 29: ...oling coil B2 Opening 27 It displays the valve opening percentage read only P Band 28 It displays the loop proportional band read write Default value 15 I Time 29 It displays the loop integral time re...

Page 30: ...persists for at least 10 minutes Fan Coil Select this menu for fan coil control Heat T 41 It displays the hot fluid temperature Read only Fixed SP 42 Value of the fixed editable SP for hot fluid temp...

Page 31: ...o delete already existing value pairs just set a room t value equal to the preceding one in the table Example outside t Cold SP 20 12 25 9 40 8 outside t Cold SP 20 23 25 9 40 9 Cool SP 48 Actual oper...

Page 32: ...ntrol Set it back to Off at the end of the test phase Pump FC1 57 It displays the digital output status of the 2 pipe fan coil pump or of hot fluid distribution in four pipe fan coil Pump FC2 58 It di...

Page 33: ...riod It has a priority on any other command Remote 68 It displays the status of the manual stop external switch Read only Display 69 It allows overriding stop from LCD Status 70 It displays the actual...

Page 34: ...1 st Issue 11 06 34 DMP054E...

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