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Danfoss Intelligent Purger System, User Manual

The Danfoss Intelligent Purger System is a state-of-the-art product designed for efficient and reliable purging of air from refrigeration systems. To ensure optimal usage, a comprehensive User Manual is available for download, absolutely free, from our website. Access it today at manualshive.com and unlock the full potential of your purger system.

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User Guide 

|

 Intelligent Purger System (IPS) for Ammonia - Technical data, installation, and use

© Danfoss | DCS (hhr) | 2019.02

BC297731816824en-000101 | 148R9643

 | 15

Display

After switching on the controller, a display 

window will momentarily show the actual 

software version, followed by the default main 

operating window shown in fig . 19 .

P717On

6.5

bar

Psat717

9.4

bar

Psat404

0.2

bar

VClseT

-22.5

°C

VOpenT

-30.5

°C

Tsat404

-73.9

°C

Danfoss

MCX

P717On

6.5

bar

Psat717

9.4

bar

Psat404

0.2

bar

VClseT

-22.5

°C

VOpenT

-30.5

°C

Tsat404

-73.9

°C

Danfoss

MCX

P717On

6.5

bar

Psat717

9.0

bar

Psat404

8.7

bar

VClseT

–45.0

°C

VOpenT

–50.0

°C

Tsat404

–11.9

°C

P717On

6.5

bar

Psat717

9.4

bar

Psat404

0.2

bar

VClseT

-22.5

°C

VOpenT

-30.5

°C

Tsat404

-73.9

°C

Danfoss

MCX

P717On

6.5

bar

Psat717

9.4

bar

Psat404

0.2

bar

VClseT

-22.5

°C

VOpenT

-30.5

°C

Tsat404

-73.9

°C

Danfoss

MCX

P717On

6.5

bar

Psat717

9.0

bar

Psat404

1.3

bar

VClseT

–45.0

°C

VOpenT

–50.0

°C

Tsat404

–39.9

°C

Stand by

Run

P717On

6.5

bar

Psat717

9.4

bar

Psat404

0.2

bar

VClseT

-22.5

°C

VOpenT

-30.5

°C

Tsat404

-73.9

°C

Danfoss

MCX

P717On

6.5

bar

Psat717

9.4

bar

Psat404

0.2

bar

VClseT

-22.5

°C

VOpenT

-30.5

°C

Tsat404

-73.9

°C

Danfoss

MCX

Purging

P717On

6.5

bar

Psat717

9.4

bar

Psat404

0.2

bar

VClseT

-22.5

°C

VOpenT

-30.5

°C

Tsat404

-73.9

°C

Danfoss

MCX

P717On

6.5

bar

Psat717

9.4

bar

Psat404

0.2

bar

VClseT

-22.5

°C

VOpenT

-30.5

°C

Tsat404

-73.9

°C

Danfoss

MCX

Alarm present

P717On

6.5

bar

Psat717

9.0

bar

Psat404

0.7

bar

VClseT

–45.0

°C

VOpenT

–50.0

°C

Tsat404

–52.6

°C

P717On

6.5

bar

Psat717

9.0

bar

Psat404

0.1

bar

VClseT

–45.0

°C

VOpenT

–50.0

°C

Tsat404

–83.9

°C

P717On

6.5

bar

Psat717

9.4

bar

Psat404

0.2

bar

VClseT

-22.5

°C

VOpenT

-30.5

°C

Tsat404

-73.9

°C

Danfoss

MCX

P717On

6.5

bar

Psat717

9.4

bar

Psat404

0.2

bar

VClseT

-22.5

°C

VOpenT

-30.5

°C

Tsat404

-73.9

°C

Danfoss

MCX

P717On

_

bar

Psat717

_

bar

Psat404

_

bar

VClseT

_

°C

VOpenT

_

°C

Tsat404

_

°C

Esc.

Up

Down

Enter

R717 low Pres limit

Actual R717 Pres

Actual R404 Pres

Upper Threshold for Purge Valve

Lower Threshold for Purge Valve

Actual R404 Temp

While in operation mode, the Up/Down arrows 

lead to the status windows mentioned in the 

table below .

Fig. 19 - Default main window. Operating (start) mode. (Examples only).

Dis . temp .

Actual R404A discharge temperature

Main Window

default See above

Cycle info

Acc . time Purge valve open (h)

Past events

Last 7 purging events (min)

Summary of Contents for Intelligent Purger System

Page 1: ...User Guide Intelligent Purger System IPS for Ammonia Technical data installation and use ir danfoss com Image coming soon ...

Page 2: ...824en 000101 148R9643 Contents Page Introduction 3 Features 3 Working principle 4 Working cycle 5 Air traps 6 Connection locations 7 Connection points 9 Installation 10 Electrical wiring 12 Light Indicators 14 Display 15 Programming Configuration 16 Technical data 18 Ordering 18 Danfoss DCS hhr 2019 02 ...

Page 3: ...ate is returned by gravity to the main plant while the NC gases are purged to the atmosphere through a water bath Through the flanged opening the purger unit has access to all parameters from the ammonia plant required for full electronic control The unit runs automatically in 24 hour cycles checking for the presence of NC gases and if present removed To regain the design capacity of the main ammo...

Page 4: ... for subsequent purging By condensing the ammonia gas a new ammonia NC gases mix is naturally pulled through This new mix is separated through a continuous process While the NC gas concentration in the evaporator 10 increases the R404A evaporator pressure and temperature will continuously lower The controller monitors R404A evaporator pressure and ammonia pressure and temperature and when R404A pr...

Page 5: ...ing ammonia is present to lift the R404A evaporating temperature above the upper threshold The compressor will continue running and if the temperature again decreases below the lower threshold a new purging will be performed This process will be repeated until the evaporator temperature stays above the lower threshold for 45 minutes after the previous closing of the purge valve Fig 2 Power on Cycl...

Page 6: ...shed through the pressure equalizing line a The pressure equalizing line makes the pressure in the receiver the same as in the compressor discharge line The pressure in the condenser outlet is lower due to the pressure loss in the condenser Since the pressure is lower than in the receiver it is necessary to mount the condenser higher than the receiver and allow for a higher liquid level in the pip...

Page 7: ...d column in the condenser will be short circuited The air purger must have its own liquid return drop leg c connected in parallel with the condenser s drop legs b When the purger is connected to the receiver the liquid level in the air purgers drop leg c will be equal to the receiver level 3 when it is connected to the condenser outlet the level will be equal to the level in the condenser drop leg...

Page 8: ...purger 5 must be connected to the float valve through a solenoid valve pv The ammonia liquid condensed in the air purger must be drained through drain pipe c to the LP side through a float valve 6 Air purger installation in a high pressure liquid level controlled installation 2 1 3 5 6 c Low pressure side pv Danfoss IPS The air purger must always be mounted above the highest liquid level to be abl...

Page 9: ...he solenoid activation control must activate deactivate each individual solenoid in a sequence of 24 N hour example 3 purge points 24 3 8 hour Single point or multi point purging NEVER HAVE MORE THAN 1 POINT OPEN AT A TIME Always close one valve before opening the next The integrated Danfoss purger control needs to be adapted to the actual number of purging points during configuration This is done...

Page 10: ...et to the support See example in fig 11 Maintain recommended distances in all directions fig 11 to allow fan cooling and service Allways leave the unit 12 hours from finished installation before first time switching on It is important that the support construction is level to ensure the internal liquid trap is properly filled Angle to horizontal 2 degrees Fig 11 Fig 12 300 500 500 750 750 780 459 ...

Page 11: ...e hose from the purge solenoid valve for blow off of NC gases according to local or national regulations Prepare an outside water tank with a maximum of 200 liters 53 gal and make sure the piping allows the purged gas to be immersed in the water Regularly check the Ph value of the tank s contents The Ph value should never exceed 12 6 else the content must be renewed Dispose of highly concentrated ...

Page 12: ...ller box cover can only be opened at key unlock and main switch off Note Authorized personel only 1 2 DIGITAL INPUT 1 8 ANALOG INPUT 3 4 ANALOG INPUT 1 2 OUTPUT 1 3 RS485 CAN CAN MMI MCX 1 2 3 4 L N Main Power 230 V 50Hz ac 24 V Converter Main Switch MCX06D Controller On Off Controller Compressor Relay Compressor Condenser fan On Off Purge valve Fig 14 Controller box internal On Off Switch PURGING...

Page 13: ...cal wiring continued Fig 16 Power Circuit 24VDC 0VDC L 1 L 3 N 1 L 2 QS1 QM1 KL1 QM2 GD1 Compressor Condenser Fan Power Supply Controller 230 V ac Press Switch 7 8 9 10 11 12 13 14 Temperature Probe Compressor Relay Low Pressure Probe High Pressure Probe Compr Relay Purge Solenoid Standby Run Error 0 V dc 24 V dc Fig 17 Controller MCX06D Inputs and Outputs ...

Page 14: ... Compressor OFF Purge Valve ON Purge Valve OFF Alarm No Alarm Status Green x x x Stand by Yellow x x x Run Green Yellow x x x Purging Green Yellow Red x x x Uninterupted Long time purging 150 h Red x x x Occurs when Check list of alarms description The purger continuous purging until max running period default 160 h is reached and the purger compressor will stop The purger compressor stops when al...

Page 15: ...r Psat717 9 4 bar Psat404 0 2 bar VClseT 22 5 C VOpenT 30 5 C Tsat404 73 9 C Danfoss MCX Purging P717On 6 5 bar Psat717 9 4 bar Psat404 0 2 bar VClseT 22 5 C VOpenT 30 5 C Tsat404 73 9 C Danfoss MCX P717On 6 5 bar Psat717 9 4 bar Psat404 0 2 bar VClseT 22 5 C VOpenT 30 5 C Tsat404 73 9 C Danfoss MCX Alarm present P717On 6 5 bar Psat717 9 0 bar Psat404 0 7 bar VClseT 45 0 C VOpenT 50 0 C Tsat404 52...

Page 16: ...CM1 Input Output Input Output Display Config List of possible alarms that can occur under active alarms Code Alarm Description Modbus address A01 General alarm Adjustable external alarm default not used 1901 08 E01 Temp Sensor Fault Electrical failure to R404A Temp sensor 1901 09 E02 BPL Sensor Fault Electrical failure to Ammonia Pressure sensor 1901 10 E03 BPH Sensor Fault Electrical failure to R...

Page 17: ...unt 0 0 0 Read 8106 V08 ComprTime 0 0 0 Read 8108 V09 COmprStartAfter 0 0 0 Read 8110 V10 ResetMem 0 0 0 R W 9901 V11 ValveHour 0 1 0 Read 8112 V12 StatusKL 0 0 0 Read 8114 V13 WaringCompr 0 0 0 Read 8115 V14 ValveSetpoint 0 0 0 Read 8116 V15 ValveClose 0 0 0 Read 8117 V16 Event1 0 1 0 Read 8119 V17 Event2 0 1 0 Read 8120 V18 Event3 0 1 0 Read 8121 V19 Event4 0 1 0 Read 8122 V20 Event5 0 1 0 Read ...

Page 18: ...echnical data Ordering Unit Code number Danfoss Intelligent Purger System IPS unit 084H5000 Multi Purger parts Code number MCX 8 controller purger controller 24V 080G0036 MCX 8 controller purger controller 240V 080G0037 SV3 float valve 027B2023 ICF 15 4 solenoid valve station Butt weld DIN 1 2 15mm 027L4543 ICF 15 4 solenoid valve station Socket weld ANSI 1 2 15mm 027L4538 Spare parts Code number ...

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