Danfoss Chiller and reversable chiller User guide

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User Guide

Chiller and reversable chiller

Reciprocating, scroll and screw compressors

Software Version 4.40.00

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Contents

User Interface ...............................................................................4

LED Display, LCD Display, Keyboard, Unit status, Login, Start, Parameter, Input/Output, I/O Display, I/O Conﬁg, I/O Prb Calibration, I/O Commissioning, Alarm, EEV, VSH Monitor, VSH Control, Clock, Language, Service, Hours Counters, Variable speed pump

Parameters .................................................................................12

Display ........................................................................................12

Parameter: dSA, dSb, dsc, Log, Par

Password ....................................................................................13

Parameter: L01, L02, L03

SetUp ..........................................................................................13

Parameter: y01, y02, y03, y04, y05, y06, y08, y09

Serial setting ..............................................................................14

Parameter: Cid, Ser, bAU, COM

Evaporator .................................................................................15

Parameter: H1, H2, H3, H4, H5, H12

Compressor ................................................................................16

Parameter: H6, H7

Condenser ..................................................................................17

Parameter: H9, H10, H11

Heat Pump ..................................................................................18

Parameter: H40, H41, H42

Maintenance ..............................................................................19

Parameter: H43

Network settings .......................................................................20

Parameter: n01,…n17

Conﬁguration .............................................................................22

Parameter: rEG, rET, rT1, rT2, o30, Er1

Main Setpoint ............................................................................24

Parameter: SC1, SCL, SCH, SH1, SHL, SHH, SRE

Economic Setpoint ....................................................................25

Parameter: SdS, SdM, SdC, SdH, SdO

Setpoint compensation in based on the outside temperature .. 26

Parameter: CC1, CC2, CC3, CC4, CH2, CH3, CH4

PI regulation ..............................................................................27

Parameter: CrC1, rH1, Rin, rC2, rC3

Dead zone regulation ................................................................28

Parameter: ddC, ddH, dd1, dd2, dd3, dd4, dd5, dd6, dd7, dd8 ...28

Digital output lock.....................................................................29

Parameter: DOn, Ain, Dos, DOd

Buzzer and relay ........................................................................29

Parameter: BUZ, Adl, AOF

Flow alarm ..................................................................................30

Parameter: AFr, AF1, AF2, AF3

ICE alarm ....................................................................................31

Parameter: AIS, AID, Air, AI1, AI2, AI3, AIT, AIo

Compressor oil delta pressure alarm .......................................32

Parameter: OPR, OdP, GdP

Circuit high temperature alarm ................................................32

Parameter: HTs, HTd

Pressure alarms from analogue input......................................33

Parameter: AHE, AHS, AHd, Alr, AL1, AL2, ALE, ALS, ALd, LPt, AVO, VCt, SHS, SHb

High water temperature alarm in cooling mode.....................34

Parameter: Ats, Atd

Boiler water temperature alarm ...............................................34

Parameter: AbS, Abd

Fault of the regulation probe of the external coil ...................35

Parameter: ACM, ACS, ACd

Preventions ................................................................................35

Parameter: TMx, THo, TLo, HPE, HPo, HPh, LPE, LPo, LPh, PPt, PPp, HFo

Superheat alarms ......................................................................37

Parameter: SHh, AHI, Ahi, AHd

Oil temperature alarms .............................................................37

Parameter: OTm, OTi, OTd

Screw compressors ....................................................................38

Parameter: C01, C02, CSO, CSb, T1, T2,T3, T4, C07, C08, T5, T6, T21, T22, T24, T24, T25, T26, T27, T28, T29

Starting type of the compressor ..............................................42

Parameter: Sty, Sti, SSt, Stm, Sdd

Economizer ................................................................................43

Parameter: E01, EO2, EO3, EO4

Liquid injection ..........................................................................44

Parameter: T41, T42, T43, T44, T45

Compressor with unloaders ......................................................44

Parameter: C04, C05, C06, C08

Maximum number of compressor starts per hour ..................45

Parameter: CT0, CT1, CT2, CT3, CT4, CT5, CT6, CT7

Valve in the liquid line ...............................................................46

Parameter: Pd1, Pd2, Pd3, Pd4

Maximum compressor running hours .....................................47

Parameter: C50

Inverter compressor ..................................................................48

Parameter: IV0, IV1, IV2, IV3, IV4, IV5

Compressor enabling ................................................................50

Parameter: CT1, CT2, CT3, CT4, CT5, CT6, CT7, CT8

Heaters .......................................................................................50

Parameter: HE1, HE2, HE3, HE4, HE5, HE6, HE7

Pump of the internal coil ...........................................................51

Parameter: P01, P02, P03, P04

Modulating Pump ......................................................................52

Parameter: ERT, ECS, ECd, ECi, EHS, EHd, EHi, EDB, EI1, EI2, EI3

Fan for the internal coil .............................................................53

Parameter: P21, P22, P50

Free cooling ................................................................................54

Parameter: FrA, Fr1, Fr2, Fr3, Fr4, Fr5, Fr6, Fr7, Fr8, Fr9, FI1, FI2, FI3

Valve in the water line ...............................................................56

Parameter: EF1, EF2

External coil ...............................................................................56

Parameter: F01

Fan requests ...............................................................................57

Parameter: F02, F03, FC, FCD, FCI, FCd, FHS, FHD, FHI, FHd

Fan regulation with a variable proportional part ...................59

Parameter: F31, F32, F33, F34, F35, F36, F37, F24, F25

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User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Economic setpoint for fan regulation ......................................60

Parameter: SS1, SS2, SS3, SS4

Stepless regulation of the fan ..................................................60

Parameter: F10, F11, F12, F13, F14, F20, F21, F22, F23

Hot gas bypass valve .................................................................61

Parameter: Bp0, Bp1

Cooling towers ...........................................................................62

Parameter: WFs, WFd

Reversing cycle valve (4 ways valve) ........................................63

Parameter: rE2, rE1, rE3, rE4

Defrost ........................................................................................64

Parameter: d01, d02, d03, d04, d05, d06, d07, d09, d10, d11, d12, d13, d14, d15, d16, d20, d22, d23, d25, d26

Heat recovery .............................................................................66

Parameter: HRs, HRm, HRc, HRn, HRt, HRo

Superheat ...................................................................................67

Parameter: V10, V20, bAt, ex1, ex2, ex3, N19, N04, N05, N20, N22, N10, N09, N11, N32, N18, N17, N15, N21, SHO

Input output expansion module ..............................................69

Parameter: XCn

Auxiliary alarms .........................................................................69

Parameter: a11, a21, a31, a41, a12, a22, a32, a42, a13, a23, a33, a43, a 14, a24, a34, a44

Oil Alarm Tandem .....................................................................70

Parameter: BME, BST, TD1, TD2, TD3, TD4, ADO, BOF, BFR

Compressor Oil Pump................................................................72

Parameter: OPE, OPO, OT1, OT2

Temperature delta of the oil .....................................................73

Parameter: OTD, OD1, OD2

How to set the power request remotely ..................................73

Parameter: RPE, RPS

How to log data on an SD card .................................................74

Parameter: ENL

Commissioning ..........................................................................77

Parameter: Ort

Graphic diagrams of some of the managed unit types ..........80

Status variables .........................................................................91

Software status ..........................................................................91

Parameter: A01, …, A19, C01, …, C04, E01, …, E08

Software info .............................................................................92

Parameter: F01, …, F07

Superheat info ...........................................................................93

Parameter: H01, …, H13

Preparatory: link to MCXShape manual

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

User Interface

Functionalities: Enable screen saver for LCD Functionalities: Enable LED display Enable support for MMILDS Functionalities: Enable schema view Functionalities: Enable I/O probe calibration Functionalities: Enable override of input and output Functionalities: Enable commissioning form Functionalities: Enable EEV using EKE 1C Enable MMI navigation Functionalities: Enable EEV using EXD 316 Functionalities: Enable EEV using MCX driver Functionalities: Enable VSH Modbus control Functionalities: Enable Scheduler Functionalities: Enable Evaporator variable capacity pump

Note: playing with MCXShape, it is very easy to customize the structure and the visibility of the menu: so the following indication cannot match with all the compiled software

Main screen: LED Display Functionalities: Enable LED display

Note: check parameters dsA, dSb and dSC.

Main screen: LCD Display

Note: check parameters dsA, dSb and dSC.

Keyboard

: Scroll UP, increment a value

: 3s when in main screen: toggle ON/OFF

: Scroll down, decrement a value

: 3s when in main screen: toggle Heat/Cool mode

: exit and save,

: when in main screen: access the active alarm list

: 3s when in Alarm screen: manual reset

The LEFT and RIGHT keys, if present, allow you to move the cursor to the desired option

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User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Menu: Unit Status Functionalities: Enable schema view

Schema:

View EEV Cx (for valve which is driven by EXD or MCX):

The alarms bit pattern is:

Note: by pressing “OK” key you manually tune the position of the valve

View EEV Cx (for valve which is driven by EKE):

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Menu: Login Parameters and Menu are organized into 4 access levels. Levels from 1 to 3 are linked to a password.

Elements cannot be accessed when they are on a higher level than the entering level. The level of each parameter and menu is deﬁned with MCXShape

• Level 0 is accessible without password

• Levels 1-3 are linked to a password (Check parameters L01, L02 and L03)

• Level 4 is not linked to a password, it can be used to make menu or parameters never reachable. You can log in from the menu:

if the password provided is not correct you remain on the login screen. Otherwise you get back to the main menu.

Menu: Start

Network menu: used to switch all the machines on or oﬀ in the Master and Slave network Default param. menu: used to load the default value of the parameters which have been deﬁned in

the .mcxs ﬁle

Menu: Parameter This menu contains all the parameters.

The meanings of the parameters are explained in the last part of this manual

Menu: I/O Display Display input and output values

LED display

Shows you (using the UP and DOWN keys) all the input and output values in sequence, showing the I/O code on display A (“AI” for analogue input; “AO” for analogue output; “dI” for digital input and “dO” for digital output) and its value on display B (analogue inputs that are not present or in alarm are shown with “----”).

LCD display

You have access to three screens showing all the input and output values; each screen shows a group of 8 I/O. Use UP and DOWN keys to scroll. The second and third screens are used with MCX15 and MCX20 only. The example below shows the ﬁrst screen.

Menu: I/O Conﬁg This menu is prepared for future use

Note: it is under the 4th level of password

Menu: I/O Prb Calibration Functionalities: Enable I/O probe calibration

inside the “Reset All” menu, you can reset all the oﬀsets to zero

Note: the screens calibration are not translated

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User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Menu: I/O Commissioning Functionalities: Enable override of input and output

Functionalities: Enable commissioning form

Note: the logic will not aﬀect the override. The override is stopped for power oﬀ, "Reset all" command and timeout that is deﬁned into the menu "Setup"

Menu: Alarm Each alarm is described through an alarm description (for LCD display only), an alarm code and the

time since its activated in the format hours:minutes:seconds (seconds for LCD display only). Note: You can also access alarm visualization by pressing the ESC key from the main screen.

The alarm is only reset if the alarm has ended and it will send you back to the main screen. Note: Alarms can also be reset by holding ESC for 3 seconds on the alarm screens

Menu: EEV Functionalities: Enable EEV using EKE 1C

Functionalities: Enable EEV using EXD 316

The parameters inside the external drivers can be checked and changed in the Conﬁg EEVx menu. The available parameters for the EXD are: r05, r09, r10, r12, A34, n04, n05, n06, n09, n10, n11, n15,

n17, n18, n19, n20, n21, n22, n32, n37, n38, n39, n40, n42, n43, n44, n45, n50, o10, o18, o20, o21, o30, o45, o56, o61, n03 The available parameters for the EKE are: R012, R009, r105, r107, O030, N102, N015, N104, N017, N021, N107, N009, N010, N116, N005, N019, N004, N020, N117, N119, N130, N011, N140, N141, A034, A103, A104, A110, A102, I020, I022, I040, I042, I043, O020, O021, I067, R005, B101, O002, O022, G003, N108, N109

The Load Factory menu overwrite the EXD parameters with the default ones

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Menu: VSH Monitor Functionalities: Enable VSH Modbus control

VSH Status:

VSH Alarms:

The STW bit-map is:

VSH inverter details:

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User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Menu: VSH Control

These commands are linked with the control word of the inverter

Menu: Clock

Functionalities: Enable Scheduler

Note: with the number beside to the function "Enable scheduler" you set the maximum amount of records, before to change it consider that it also aﬀects the EEPROM.

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Menu: Language

Menu: Service

Software info: Check variables status F01-F07

Device info:

Show rolling text:

Enabling rolling text will add additional information in the main screen

- P: Power demand

- Cx- Alarm: Compressor X is in alarm

- Cx- CTy: Compressor X is waiting for the parameter with the label CTy

- P-Down: Compressor is waiting for pump down to be switched oﬀ

- Cx- Prev: Circuit X is being reducing by prevention

Network reset: it restarts from zero the managing of the master slave network Stepper valves info:

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User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Menu: Hours Counters Note: The Reset Counters menu resets to zero all the counters, compressors and both pumps.

For resetting the single compressor or pump push "Enter" button into the screen where are reported the hours of the device.

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Parameters

Display

Parameter: dSA, dSb, dsc, Log, Par

How to customize the main screen.

dSA-Display A value 0= OFF : Display A is not used

1= IdOF : Display A shows the state of the digital input ON/OFF 2 =SEt : Display A shows the set point of the compressors regulation 3 =rEg : Display A shows the probe used for regulation 4=AI1 : Display A shows the value of the analogue input 1

……

19 =AI16 : Display A shows the value of the analogue input 16

dSb-Display B value 0 =OFF : Display B is not used

1=IdOF : Display B shows the state of the digital input ON/OFF 2=SEt : Display B shows the set point of the compressors regulation 3 =rEg : Display B shows the probe used for regulation 4 =AI1 : Display B shows the value of the analogue input 1

…

19 =AI16 : Display B shows the value of the analogue input 16 20 =TcP1 : Display B shows the temperature calculated from the dP1 sensor

…

23 =TcP4 : Display B shows the temperature calculated from the dP4 sensor

dsc-Icone for cooling mode

Log- Logo Log=0 is combined with the image StartLogoDX in Chiller/BIN/Graph folder

Log=1 is combined with the image StartLogoDX_1 in Chiller/BIN/Graph folder

Note: the logo is shown just after the power on, pay attention to the size of the image because it is ﬁt in this screen

Par- Parameters version It is not used in the software, can be used to recognize diﬀerent set of parameters

Note: this number is reported into the software information

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User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Password

Parameter: L01, L02, L03

How to change the passwords.

L01, L02, L03-

Level x password

Typing the parameter L0X, in the login screen, you will be able to see all the parameters and menu with level <= of X; The level of access is highlighted in the yellow square; after 10 minutes of inactivity the display is set to an access level of zero

SetUp

Parameter: y01, y02, y03, y04, y05, y06, y08, y09

How to switch ON-OFF and change the application mode from parameters.

Functionalities: Enable scheduler Functionalities: Enable show compressor status Digital input: ONO Digital output: UNT

y01- System ON/OFF 0=Machine OFF

1=Machine status depends on the DI _ONO

Deﬁnes whether the chiller is in the ON or OFF state, it can be changed from the menu, remotely by Modbus or CANBUS and from start screen by holding the up arrow key. Note1: The software is in ON status only if y02=ON and DI_ONO=ON Note2: The chiller status is also reported in the digital output UNT_Unit Status

y02- Restart mode after power OFF

y03- System heat/cool It works only with H40> 0 and rE2=UI;

0=OFF means that after power on, the chiller gets up in OFF state 1=ON means that after power on, the chiller gets up in ON state 2=EQUA means that after power on, the chiller keeps the same state as before power oﬀ

This deﬁnes whether the machine should be in chiller mode or heat pump mode. This parameter can also be changed from the “Start” menu

y04- Actuators delay from power ON

y05- Temperature measurement unit

y06- Keyboard lock 0=No

y08- Scheduler enable 0=No means that the scheduler is disabled

It is in seconds and sets the delay when powered ON (not when the unit status changes to ON) before activating any outputs. Its purpose is to distribute the drawn current and protect the elements and particularly the compressor against repeated starts in the event of frequent power failures. When the timer has elapsed, the controller starts to manage the outputs based on the other times and the other normal functions.

0=C means that the user interface will show values in Celsius and bar 1=F means that the user interface will show values in Fahrenheit and PSI

1=Yes means that the user interface is locked

Note: This parameter can be adjusted in order to be set remotely because it is not enabled for the menu

1=Yes means that the scheduler is enabled Note: the “Enable scheduler” functionality is required

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

y09- Show rolling test 0=No

1=Yes

Provides information about what is going on in relation to the cutting in/out of the compressors

Note: If the functionalities “Enable show compressor status” is enabled in the UI, a small icon is added for each compressor

Serial setting

Parameter: Cid, Ser, bAU, COM

How to conﬁgure the communication port.

Functionalities: Enable Modbus address diﬀerent from CANBUS address

Cid – Serial address (CAN) Deﬁnes the ID in the CANBUS communication

Note: the baud rate and the settings of the CANBUS communication is tuned through the bios menu or though the MYK

SEr – Serial address (MODBUS) Deﬁnes the ID in the Modbus communication

Note: the functionalities “Enable Modbus address diﬀerent from CANBUS address” is required

bAU – Serial baud rate (Modbus)

COM – Serial settings (Modbus)

Deﬁnes the baud rate in the Modbus communication

0 means Reserved: do not use 1 means 1200 bits/sec 2 means 4200 bits/sec 3 means 4800 bits/sec 4 means 9600 bits/sec 5 means 14400 bits/sec 6 means 19200 bits/sec 5 means 28800 bits/sec 8 means 38400 bits/sec 9 means 57600 bits/sec 8 means 115200 bits/sec

Deﬁnes the serial settings of the Modbus communication

0 means 8N1 1 means 8E2 2 means 8N2

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User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Evaporator

Parameter: H1, H2, H3, H4, H5, H12

How to conﬁgure the internal coils.

Digital input: OPE, OPE1, OPE2 Digital output: PE1, PE2, …, PE8, H1, …, H4 Analogue input: TIN, TOM, TO1, …, TO4 Analogue output: E1, …, E4 Alarms: AE1, AO7, AP0, AP1, …, AP9

H1 – Number of evaporators Deﬁnes the number of internal coils;

The supply temperature (TIN) is the same for all the coils. Each coil has a “leaving temperature” (T01-T04) ; there is also a common “leaving temperature” sensor for all the coils ( TOM)

H2 – Number of circuits per evaporator

H3 – Air or water cooling Deﬁnes whether the evaporation process is managed by a pump (H3=H2O) or a fan (H3=Air):

H4 – Number of pump/fan per

evaporator

H5 – Number of heaters per evaporator

H12 –Fan in common for each evaporator

Deﬁnes the number of circuits for each internal coil; Conﬁguration accepted:

• 1 circuit per internal coil -> 0<H1<5

• 2 circuits per internal coil ->0<H1<3

• 3 circuits per internal coil H1=1

• 4 circuits per internal coil H1=1

• WATER evaporators (H3=H2O). For each evaporator, the H1,...,H4 digital outputs which are necessary to manage the antifreeze heaters on the basis of the leaving water temperature TO1,...,TO4 are controlled. The number of heaters per evaporator is deﬁned by H5.

• AIR evaporators (H3=Air). Only the “TO1_Tout Evaporator 1” input is used to measure the supply air temperature even when more than one evaporator is present. The ice alarm AE1 is replaced with the Low air temperature warning A07 which is set to the same parameters as the ice alarm.

Deﬁnes the pumps (or fan) per evaporator:

• WATER evaporators (H3=H2O): The PE1 and PE2 digital outputs are managed to control one pump or two twin pumps.

• AIR evaporators (H3=Air): “PE1 and PE2” outputs are used to manage fans on the evaporator. Note: check "Fun for internal coil"

Deﬁnes the number of heaters for each internal coil; Conﬁguration accepted:

• 1 heater per internal coil -> 0<H1<5

• 2 heaters per internal coil ->0<H1<3

• 3 heaters per internal coil ->H1=1

• 4 heaters per internal coil ->H1=1

0=NO means that each fan (AO ECx) works in relation to the evaporator pressure 1=Yes means that only the fan EC1 will work in relation to worst pressure in the evaporators

Note: the fan speed is managed with PI logic (check parameters ECS,….,Hi)

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Compressor

Parameter: H6, H7

How to conﬁgure the compressors number.

H6 – Number of compressor per circuit

H7 – Number of unloader per compressor

Deﬁnes the number of compressor per circuit; It’s not possible have circuits with diﬀerent number of compressors Conﬁguration accepted:

• 1 compressor per circuit -> 0<H1*H2<5

• 2 compressors per circuit ->0<H1*H2<5

• 3 compressors per circuit ->0<H1*H2<3

• 4 compressors per circuit ->0<H1*H2<3

• >4 compressors per circuit ->0<H1*H2<2

Deﬁnes the number of compressor partialisation; The number of regulation steps is equal to H6*H2*H1*(H7+1) Activation and deactivation of the compressor’s unloader is deﬁned by the parameters “C04-Unloaders activation mode” and “ C05-Unloaders deactivation mode”

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User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Condenser

Parameter: H9, H10, H11

How to conﬁgure the external coil.

Digital input: OFC, FCL1, …, FCL4, OFC1, …, OFC12 Digital output: FC1, …, FC12 Analogue output: Fc1, …, Fc4 Alarm: AF1, …, AF12

H9 – Air or water cooler

condenser

H10 – Number of pump/fans per condenser

H11 –Fan in common to all condenser

Deﬁnes whether the fans or the pump regulate condensing.

0=AIR : Controls defrosting in heating mode. 1=HO : The conﬁguration managed is H10=1 and H11=Yes

Note: the pump or fan behaviour is deﬁned by parameters F01, F02 and F03

Deﬁnes the necessary digital output to control the pumps or fans on the condenser.

• Water-cooled units (H9=H2O).The single “Cond Fan1/Pump1” digital output is controlled to drive a pump.

• Air-cooled units (H9=AIR). Contributes to deﬁning the total number of managed ventilation steps and thus of the corresponding ”Condenser Fan1”, ..., ”Condenser Fan8” digital outputs used to drive them.

On multi-circuits units, fans can be in common to all condensers. If fans are not in common to all condensers (H11=0=NO), the following output are controlled:

• as many analogue inputs as the condensers (H1*H2)

• as many digital outputs as the condensers (H1*H2), multiplied by the number of fans per condenser (H10); digital outputs for fans are assigned to condensers in a sequential and balanced way, assuming that all condensers have the same number of fans; e.g. in a system made of 2 condensers and 6 fans, “Cond Fan1/Pump1”, “Condenser Fan2” and “Condenser Fan3” outputs are assigned to control fans belonging to the ﬁrst condenser; “Condenser Fan4”, “Condenser Fan5” and “Condenser Fan6” to the second condenser.

• as many analogue output s “InverterFanCond1”,...,”InverterFanCond4” for condensing control as for the condensers (H1*H2).

If fans are common to all condensers (H11=1=YES) the following outputs are used:

• as before, as many analogue inputs for condensing controls as there are circuits per condenser (H1*H2), but the one requiring the higher response from the control is used for regulation. Each analogue input is then used for defrost control in heating mode;

• as many digital outputs as fans per condenser (H10);

• one analogue output “InverterFanCond1” for fan speed regulation.

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Heat Pump

Parameter: H40, H41, H42

How to conﬁgure the heat pump mode

Functionalities: Enable Heat Pump Control Digital output: HC1, …, HC4, BO1, …, BO4 Analogue input: SP1, …, SP4, dP1, …, dP4

H40 –Heat pump type 0=No means that the software does not perform heating mode

1=GAS means that the software performs the heating mode, the internal coil is the evaporator in

cooling mode and the condenser in heating mode 1=H2O means that the software performs the heating mode, the coils keep the same meaning in both heating and cooling mode both

Note: one digital output “Reverse Valve C1”, ..., “Reverse Valve C4” per each circuit is reserved for controlling the reverse ﬂow valve

H41- Boiler number of heaters Boiler heaters “Boiler1”, ..., “Boiler4” are turned ON when the temperature measured by the regulation

probe enters in the area deﬁned by the active regulation setpoint in heating (SH1) and diﬀerential rH1.

They are an alternative to the heat pump, not in addition.

Boiler heaters can be activated only if the temperature measured by the “BoilerSafety” probe is under a speciﬁc safety limit AbS. If it is over the limit, alarm A14 is generated. To reset the alarm there is a constant diﬀerential Abd to be considered.

H42- Probe change in HP 0=No means that the probe is before the 4-way valve (close to the compressor):

• the sensor SPx – Suction pressure Cx measures low pressure

• the sensor dPx – Discharge pressure Cx measures high pressure

1=Yes means that the probe is after the 4-way valve (close to the coils):

• the sensor SPx – Suction pressure Cx measures low pressure in cooling mode and high pressure in heating mode

• the sensor dPx – Discharge pressure Cx measures high pressure in cooling mode and low pressure in heating mode

Note: if ex2=yes the variable used from H42 (pink line below) is always about low pressure, in this case pay attention to set H42=No because in heating mode the discharge pressure will not be available

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User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Maintenance

Parameter: H43

How to manually set the compressor power request.

Functionalities: Enable commissioning for power request Digital output: MPR

H43- Manual chiller power The power request provided to the compressors is about H43 %

H43< zero means that the function is disabled

Note: if H43 >=0 the digital output MPR is closed

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Network settings

Parameter: n01,…n17

The Master and Slave is a functionality that allow a group of machines to be managed like one machine (Master) decides which and how many units (Slaves) should run. The max number of units is 8 (7 slaves + 1 master), the network is CANBUS. The Master and Slave function optimizes:

- ageing of machines

- distribution of the load in order to improve the performance of the plant

- The backup units

Functionalities: Enable Master/Slave Alarms: N01, N02, N03, N04, N05,N06, N07, N08

n01 –MCX network disable 0=NO means that the Master slave function is enabled

1=Yes means that the Master slave function is disabled

n02 –Number of slave nodes It has to be set equal to (“number of chillers in the network” -1)

n03- Auto master select 0=NO means that the master in the master slave network can be only the chiller with the CANBUS ID

equal to n15: if the master is not more available in the network, the other chillers will start to work in standalone mode

1=Yes means that the master in the master slave network is the chiller with lowest CANBUS ID

n04- Distribution algo 0= PWR The master, using its own sensors, decides how many chillers are working and the chillers’

power supply; The maximum number of units that can work is related to the gap between setpoint and temperature: practically the regulation band is divided for the number of machines (n02+1-n09):

1= CAP the master manages only the start order (following the ageing of the machines), chillers manage their power as standalone machines. If all the units which are running have capacity above n12 %, the master will switch on another chiller (the youngest one). If all the units which are running have capacity below n13 %, the master will switch oﬀ the oldest chiller running The minimum time between two actions of the master is n14 seconds

n05- Power Smart power distribution enable

n06- Node rotation enable 0=No means that the start sequence of the machines is ﬁxed; the order depends on the addressing,

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1=Yes means that the master is allowed to cut-in the ﬁrst chiller available without considering the start order related to the ageing of the machines

the ﬁrst to start is the machine with the smallest CANBUS ID, the ﬁrst to stop is the chiller with the highest CANBUS ID 1=Yes means that the start/stop sequence of the machines depends on the ageing of the chillers, always starting with the youngest of the set and the oldest one is always the ﬁrst to stop. In the case that one machine works n17 hours more than another chiller that is switched oﬀ, the master will exchange the unit in order to align the ageing.

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

n07- Backup node oﬀset When the gap between setpoint and temperature is above (n07+regulation band), the ﬁrst backup

unit is allowed to work as a support, also considering parameter n08 .

Note: the oﬀset to enable the other backup units is (n07*m+ regulation band):

• m = 2 for the second backup unit

• m = 3 for the third backup unit

• …

Note: the backup units will work running normally after the set point. It will be switched oﬀ when the gap between setpoint and temperature is below the regulation band Note: the pump behaviour is deﬁned through the parameter P01

n08- Time to enable n07 It’s the time to stay far away from the setpoint in order to cut in the backup unit

Note: check parameter n07

n09-Number of back-up unit n09 deﬁnes the number of backup units inside the master slave network

A backup unit is never enabled (so does not provide cooling capacity) unless one of the following situations occurs:

• one of the other units becomes unavailable

• Support (see parameter n07 and n08)

Note: The master chooses the backup unit (among all nodes present in the network) by looking at the working time of every unit: the one which has worked the longest will be the backup unit.

n10 – Evaporator in common 0=No each chiller consider its own evaporator ﬂow alarm

1=yes the master will read its “FPE” digital input (Flow Evaporator) and will send the information to

other slaves

n11 – Pump alarm in common 0=No each chiller considers its own pump alarm

1=yes the master will read its “AP1” digital input (Evap pump/fan overload alarm) and will send the

information to other slaves

n12 – Capacity upper threshold

n13 – Capacity lower threshold

n14 – Capacity step min time See parameter n04

See parameter n04

n15 – Master node CAN ID It has to be set equal to the lowest ID in the CANBUS network

n16 – Slaves node CAN ID oﬀset The slaves have to take the CAN ID in relation to the n15 just adding n16.

E.G. for n02 =3

• Master ID= n15

• Slave1 ID= n15+n16

• Slave2 ID= n15+n16+n16

• Slave3 ID= n15+n16+n16+n16

n17 – Maximum gap time for unit rotation

n18 – Backup unit pump status

It is in hours If a running unit becomes older than a switched-oﬀ unit by more than n17 hours, the logic will switch oﬀ the oldest unit running it will cause the other unit to be switched on.

0=OFF: the backup chillers in standby have the pump switched-oﬀ 1=ON: the backup chillers in standby have the pump switched-on Note:during support or backup, the pump of the chiller follow P01 setting

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Conﬁguration

Parameter: rEG, rET, rT1, rT2, o30, Er1

rEG – Analogue input for

temperature regulation

rET – Regulation Type Deﬁnes the relation between the temperature gap and the power request to the circuits.

0= Tin : reference sensor is Tin_Tin Evaporator 1= ToM: reference sensor is TOM_Tout Evap Mix 2 =AI1: reference sensor is the analogue input 1

……

17 =AI16 : reference sensor is the analogue input 16 18 =SPT1: reference is the temperature calculated from the sensor SP1_Suction Press C1, the gas type is set using parameter o31

0=P : Power request to the circuits increases in proportional way with the regulation error, i.e., it is 100% when the regulation error (the gap between setpoint and the reference sensor ) is equal to rC1 ( rH1)

1=PI: the power request is the sum of P regulation (rET=0) plus a component (Integral part)

that increases in relation to the regulation error; the speed of the integral part depends on the parameter rin_Ti. For PI regulation, the balance is reached only when the regulation sensor gets the setpoint.

2=dZ : The delay between compressors activations varies between a maximum value dd5 and minimum value dd6 proportional to the temperature position inside the regulation band deﬁned by the activation diﬀerential dd1. Above setpoint + dead zone + activation diﬀerential, the delay among activations is equal to the minimum.

rT1- Minimum limit for TReg TX

rT2- Maximum limit for TReg TX

Similarly the action for the delay among compressors deactivations, which can vary between a maximum value dd7 and a minimum value dd8, is proportional to the temperature position inside the regulation band deﬁned by the deactivation diﬀerential dd2. Below a setpoint diﬀerential, the delay among activations is equal to the minimum value, dd8, up to a limit threshold, dd3. Below that, all the compressors are immediately switched OFF to avoid the unit ice alarm.

The analogue output rtr linearly replays the regulation probe (check parameter rET) It gets to 0% when the regulation probe reaches a value of rT1 Note: if the regulation probe is in error the AO_rtr gets to 100%

The analogue output rtr linearly replays the regulation probe (check parameter rET) It gets to 100% when the regulation probe reachs rT2 value Note: if regulation probe is in error the the AO_rtr gets to 100%

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o30 – Gas type 0=---

1=R12 2=R22 3=R134a 4=R502 5=R717 6=R13 7=R131b1 8=R23 9=R500 10=R503 11=R114 12=R142b 13=-14=R32 15=R227 16=R401a 17=R507 18=R402a 19=R404a 20= R407c 21= R407a 22= R407b 23= R410a 24= R170 25= R290 26=R600 27= R600a 28= R744 29= R1270 30=R417a 31=R422a 32=R413A 33=R422D 34=R427A 35=R438A 36=R513A 37=R407F 38=R1234ze 39=R1234yf 40=R448A 41=R449A 42=R452A 43=R450A 44=R452B 45=R454B 46=R1233zdE 47=R1234zeZ 48=R449B 49=R407H

Note: the gas deﬁnition is used when the translation of the pressure in temperature is required;

ReG=SPT1 and for the “internal” super heat control

o31 – Dew/Bubble Conversion

mode

Er1 – Emergency mode max power

0=Dew 1=Bubble used for the gas that require the "Glide" approximation

Er1 = -1 the function is disabled Er1 >= 0 when the digital input EEr is closed the power request is limited to Er1 instead of 100%

Note: the functionality “Enable emergency mode from DI” is required

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Main Setpoint

Parameter: SC1, SCL, SCH, SH1, SHL, SHH, SRE

Analogue input: TRM

SC1 – Cooling temperature set

point

SCL – Minimum limit Deﬁnes the minimum limit of the setpoint in cooling mode

SCH – Maximum limit Deﬁnes the maximum limit of the setpoint in cooling mode

SH1 – heating temperature set

point

SHL – Minimum limit Deﬁnes the minimum limit of the setpoint in heating mode

SHH – Maximum limit Deﬁnes the maximum limit of the setpoint in heating mode

SRE- Remote set enable The regulation setpoint is deﬁned through the analogue input TRM_Remote Set

Deﬁnes the setpoint in cooling mode

Note: This limit is not respected when adjusted through Modbus

Deﬁnes the setpoint in heating mode

Note: This limit is not respected when adjusted through Modbus

0=NO means that the function is not enabled 1=rEL means that set point = main setpoint + oﬀset from analogue input (TRM_Remote set)

2=Abs means that set point is linearly deﬁned through AI_TREM, between SCL - SCH in cooling and SHL - SHH in heating

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User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Economic Setpoint

Parameter: SdS, SdM, SdC, SdH, SdO

SdS- Setpoint selection 0=DI means that the digital input SET2_Reg oﬀset from DI deﬁnes if use comfort setpoint (SC1 or

SH1) or the economic setpoint (SC1+SdC or SH1-SdH); in economic mode the proportional band in the PI control is increased by SdO 1=PAR meaning that the parameter SdM_Setpoint mode deﬁnes whether comfort setpoint

(SC1 or SH1) or the economic setpoint (SC1+SdC or SH1-SdH) is to be used; in economic mode the proportional band in the PI control is increased by SdO

SdM- Setpoint mode It works only for SdS=PAR

0=COMF meaning that chiller uses comfort setpoint ( SC1 or SH1) 1=ECO meaning that the chiller uses economic setpoint (SC1+SdC or SH1-SdH) In economic mode the proportional band in the PI control is increased of SdO.

SdC-Oﬀset for setpoint in cool-

ing

In economic status and cooling mode the regulation setpoint is shifted to SdC. Note: see parameter SdS

SdH-Oﬀset for setpoint in heating

SdO-Oﬀset for diﬀerential In economic mode the proportional band of regulation becomes rC1+SdO or rH1+SdO.

In economic status and heating mode the regulation setpoint is shifted to SdH. Note: Take a look to parameter SdS

Note: look at parameter SdS

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Setpoint compensation in based on the outside temperature

Parameter: CC1, CC2, CC3, CC4, CH2, CH3, CH4

Analogue input: OUt

CC1-Compensation enable 0=NO means compensation disable

1=YES means compensation enable

Note: this function adapts the setpoint to the outside temperature “Tout”

CC2-Outside temperature to start cool comp.

It’s in °C

CC3-Outside temperature to stop cool comp.

CC4-Maximum cooling compensation

It’s in °C

CH2-Outside temperature to start heat comp.

CH3-Outside temperature to stop heat comp.

CH4-Maximum heating compensation.

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It’s in °C Like CC2 but used in heating mode

It’s in °C Like CC3 but used in heating mode

It’s in °C Like CC4 but used in heating mode

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

PI regulation

Parameter: CrC1, rH1, Rin, rC2, rC3

Note: the PI regulation is enabled when the parameter rET is equal to P or PI

rC1-Cooling temperature diﬀerential.

rH1-Heating temperature diﬀerential.

Rin- Ti It is the integral time of the PI regulation, the bigger the value of Rin the slower the action of the

rC2-Cut Oﬀ enable It enables the gradual reduction of the integral error once reached and exceeded the setpoint. The

rC3- Cut oﬀ oﬀset

See parameter rET

Integral part. See parameter rET

error integral in fact tends to keep the compressors turned on even if the proportional part of the error would require a shutdown. The amount of reduction is proportional to the distance from the setpoint considering the rC3 band. For example, in cooling, the reduction is zero when the control temperature is equal to the setpoint; the reduction is greatest when it is equal to setpoint-rC3.

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Dead zone regulation

Parameter: ddC, ddH, dd1, dd2, dd3, dd4, dd5, dd6, dd7, dd8

Functionalities: Enable Dead Zone Regulation

The dead zone regulation is enable when the parameter rET is equal to DZ It is a variable time regulation mainly used when the regulated value is the temperature of the ﬂuid leaving the evaporator. In the dead zone ddC no regulating action is taken. Close to the dead zone the decision to cut the compressor in or out will take a maximum time of (dd5 or dd7), a time that will decrease linearly outside the dead zone. This variable time logic is described below.

ddC-Cooling dead zone In dead zone ddC no regulation action is taken.

This is above the setpoint and used in cooling mode

ddH-Heating dead zone In dead zone ddH no regulation action is taken.

This is below the setpoint used in heating mode

dd1-Comp activation diﬀerential

dd2-Comp deactivation diﬀerential

dd3-Min temp for OFF comp in cooling

dd4-Max temp for OFF comp in heating

dd5-Max delay of comp activation

dd6-Min delay of comp activation

dd7-Max delay of comp deactivation

dd8-Min delay of comp deactivation

Deﬁnes the maximum temperature gap to have a minimum delay (dd6) in the compressor’s activation Note: see picture in the parameter ddC and ddH

Deﬁnes the maximum temperature gap to have a minimum delay (dd6) in the compressor’s deactivation Note: see picture in the parameter ddC and ddH

Deﬁnes the minimum temperature below which the compressors are switched oﬀ Note: see picture in the parameter ddC

Deﬁnes the maximum temperature above which the compressors are switched oﬀ Note: see picture in the parameter ddH

Deﬁnes the maximum delay before a compressor cuts in Note: see picture in the parameter ddC and ddH

Deﬁnes the minimum delay before a compressor cuts in Note: see picture in the parameter ddC and ddH

Deﬁnes the maximum delay before a compressor cuts oﬀ Note: see picture in the parameter ddC and ddH

Deﬁnes the minimum delay before a compressor cuts oﬀ Note: see picture in the parameter ddC and ddH

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User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Digital output lock

Parameter: DOn, Ain, Dos, DOd

It is possible to lock a digital output in open position in relation to an analogue input. The lock condition is reported in the rolling text

Functionalities: Enable DO Locking from AI

DOn-Digital output number This is the number of the digital output to lock in open position;

The conditions to lock it are deﬁned by AIn, DOs and DOd

AIn-Analogue input number This is the number of the analogue input to refer to lock the digital output DOn

DOs-Set point for locking This is the setpoint to compare with the value of the analogue input AIn for locking the digital output

DOn; Note: set parameter DOd to lock the digital output DOn above or below the setpoint DOs

DOd-Diﬀerential to unlock

Buzzer and relay

Parameter: BUZ, Adl, AOF

BUZ-Buzzer activation time

number

Adl-Alarm relay activation delay

AOF-Alarm relay active if unit in oﬀ

It's in minutes. Deﬁnes the maximum time that the buzzer can work; BUZ=15 means that there is no limit in the active time of buzzer

It's in seconds. Deﬁnes the delay of the alarm relay when there is an alarm

Deﬁnes whether the alarm relay works in the OFF state of the chiller

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Flow alarm

Parameter: AFr, AF1, AF2, AF3

It is generated by the “Flow Evaporator” digital input. In the event of an alarm:

• if there is the second pump “Evap Pump2”, the second pump operating warning A08 will be activated before the ﬂow switch alarm A03;

• otherwise, all the compressors and all the other elements will be immediately switched OFF, ignoring their protection times. The alarm is delayed by AF1 seconds after the pump starts to wait for the water ﬂow to reach its steady value.

It is also delayed in normal functioning by AF2 seconds to ﬁlter out temporary ﬂow changes or air bubbles in the water circuit.

AFr-Reset Type Used in the alarm tab to set the reset type from the UI

The reset type is conﬁgurable through AFr to:

• manual: all the outputs are OFF, including the pump. After reset, if the alarm is still active, the alarm is ignored (but still shown on display) until the delay time from startup is elapsed to give the unit the chance to start normally.

• automatic: all the outputs are OFF, excluding the pump which tries to start every AF3 seconds; the alarm is ignored until the delay time from startup is elapsed.

• semi-automatic: the pump tries to start every AF3 seconds for AFr number of times, ignoring the alarm during its delay at startup; exceeded the attempts of starting the pump, the alarm can only be reset manually.

Digital input: FPE Alarms: A03, A08

AF1-Delay from pump starting Used in the alarm tab to set the Startup delay from the UI

Note: Period starts when the pump starts and not from the power being turned on

AF2-Delay in steady operation Used in the alarm tab to set the Steady delay from the UI

AF3-Time to restart Deﬁnes the time to wait before restart the pump;

It works resetting both the automatic and semiautomatic alarms

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User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

ICE alarm

Parameter: AIS, AID, Air, AI1, AI2, AI3, AIT, AIo

Analogue input: TO1, TO2, TO3, TO4, TOUt Alarms: AE1, AE2, AE3, AE4, AIT

Functionalities: Enable enhanced low temperature management

AIS-Ice alarm setpoint If TOx temperature goes below AIS °C the alarm AEx (x=1,2,3,4) is detected

ICE Alarm cuts in the heaters Note: see parameter AI3 to set up the alarm’s behaviour in the OFF state

AID-Diﬀerential Above AIS +AID the ICE alarm is resettable

AIr-Reset Type Used in the alarm tab to set the reset type from the UI

AI1-Delay from pump starting

in cool

AI2-Delay from pump starting in heat

AI3-Out status if unit OFF - alarm

AIT-Ice tout alarm It’s in °C

AIo-Ice alarm oﬀset It’s in °C

It’s in seconds Used in the alarm tab to set the “Startup delay” from the UI Used for the cooling mode

It’s in seconds Deﬁnes the delay of the ice alarm from the pump starting in heating mode

Deﬁnes the chiller’s behaviour in relation to the ICE alarm when the chiller is in OFF state

0=HOFF means that the heaters will not be used 1=HON means that only the heaters will switch ON 2=HPON means that pump and heaters both will switch ON

Note: in the ON state the ICE Alarm switches on the heaters

If external temperature Tout goes below AIT °C, alarm AIT is generated Note: the action of the alarm has to be deﬁned in the alarm tab

The setpoint of the ice alarm becomes AIS+Alo, the sensor used to check the alarm is the minimum in between Tin, TOx, TFC and Tout Note: The functionality “Enable enhanced low temperature management” is required

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Compressor oil delta pressure alarm

Parameter: OPR, OdP, GdP

The alarm is detected when the compressor runs. The alarm A4x is triggered when the diﬀerence in between the sensor deﬁned by parameter OPR and the sensor OPx_Oil pressure Compx is lower than OdP. Alarm behavior has to be set in the Alarm tab

Analogue input: OP1, …, OP8, SP1, …, SP4, dP1, …, dP4 Alarms: A31, …, A35, A41, …, A48, dP0, dP1, …, dP4

OPR- Oil delta pressure

reference

OdP- Min oil delta pressure Measurements are in bar

GdP- Min gas delta pressure Measurements are in bar

0=SUC means that the alarm depends on suction pressure 1=DIS means that the alarm depends on discharge pressure

Note: check parameter H42

Deﬁnes the minimum delta pressure to generate the alarm Alarm hysteresis is ﬁxed and equal to 0.3 bar

When the gap between discharge and suction pressure is less than GdP bar the alarm dPx is generated Alarm hysteresis is ﬁxed and equal to 0.3 bar Note: The alarms have to be set in the alarm tab

Circuit high temperature alarm

Parameter: HTs, HTd

When the discharge temperature of the circuit is above HTs parameter the “High discharge temp” alarm is generated. When the discharge temperature goes below HTs-HTd the alarm can be reset

Analogue input: dt1, dt2, dt3, dt4 Alarms: dt0, dt1, dt2, dt3, dt4

HTs- High discharge

temperature set

Deﬁnes the temperature setpoint above which the dtx alarm is generated

HTd- Diﬀerential Below HTs-HTd the alarm can be reset

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Pressure alarms from analogue input

Parameter: AHE, AHS, AHd, Alr, AL1, AL2, ALE, ALS, ALd, LPt, AVO, VCt, SHS, SHb

Analogue input: dP1, dP2, dP3, dP3, SP1, SP2, SP3, SP4 Alarms: AH0, AH1, AH2, AH3, AH4, AL0, AL1, AL2, AL3, AL4, AV0, AV1, AV2, AV3, AV4, AM0, AM1, AM2. AM3, AM4

AHE- Enable HP alarm from AI 0=NO means disable

1=YES means enable

AHS- High pressure alarm

setpoint

AHd- High pressure alarm hysteresis

Alr- Reset type Used in the alarm tab to set the reset type from the UI

When the discharge pressure (sensor dPx) goes above AHS, alarm AHx is triggered

Below AHS-AHd the alarm AHx can be reset

AL1- Delay from compressor starting

AL2- Enable when compressor OFF

ALE- Enable LP alarm from AI 0=NO means disable

ALS- Low pressure alarm

setpoint

ALd Low pressure alarm hysteresis

Used in the alarm tab to set the startup delay from the UI

0=NO means that the low pressure alarm is not triggered when the circuit is switched oﬀ 1=YES means that the low pressure alarm is triggered also when the circuit is switched oﬀ

1=YES means enable

Note: it enables also the vacuum alarm

When the suction pressure (sensor SPx) goes below ALS alarm ALx is triggered

Above ALS+ALd the alarm ALx can be reset

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LPt- Low pressure bypass time Used in the alarm tab to set the Steady delay from the UI

AVO- Vacuum alarm oﬀset When the suction pressure (sensor SPx) goes below ALS-AVO alarm AVx is triggered

Note: The alarm is enabled by ALE (the same used for Low pressure alarm)

AVd- Vacuum alarm hysteresis Above ALS- AVO + AVd the alarm AVx can be reset

VCt-Vacuum alarm bypass

time

SHS- High suction pressure setpoint

SHb- High suction pressure hysteresis

Used in the alarm tab to set the Steady delay from the UI

When the suction pressure (sensor SPx) goes above ASH, alarm AMx is triggered

Below SHS-SHb the alarm AMx can be reset

High water temperature alarm in cooling mode

Parameter: Ats, Atd

Analogue input: TOx Alarms: A09

Ats- Setpoint in cooling In Cooling mode, when the water temperature (max in between TOx) goes above Ats, the alarm A09

is triggered Note: The alarm’s action has to be set in the alarm tab

Atd- Diﬀerential Below Ats-Atd the alarm A09 can be reset

Boiler water temperature alarm

Parameter: AbS, Abd

It works only for heat pump conﬁguration H40> 0 (heat pump)

and H41> 0 (Boiler with heaters) The alarm A14 deactivates the heaters

Analogue input: BOI Digital output: BOx Alarms: A14

AbS- Setpoint When the water inside the boiler (BOI) goes above AbS, the alarm A14 is triggered

Alarm A14 deactivates the heaters

Abd - Diﬀerential Below Abs-Abd the alarm A14 can be reset

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Fault of the regulation probe of the external coil

Parameter: ACM, ACS, ACd

How set it up

ACM- Condenser fan/pump status

ACS- Outside temp set for fan/ pump

ACd- Outside temp diﬀ. for fan/pump

0=OFF means that if there is a condenser regulation probe fault, the Fan/Pump will be kept switched OFF 1=ON_C means that if there is a condenser regulation probe fault, the Fan/pump will be switched ON if at least one compressor is active in the circuit 2=FTou means that if there is a condenser regulation probe fault, the Fan/Pump will cut in in relation to the TOut_ T out sensor, see parameter ACS and ACd

If ACM=FTou, in case of fault of condenser regulation probe, the fan will regulate in relation to the outside temperature, following the picture below

Note. In case of outside temperature sensor fault the fan will works as ACM=ON_C

See parameter ACM

Preventions

Parameter: TMx, THo, TLo, HPE, HPo, HPh, LPE, LPo, LPh, PPt, PPp, HFo

The alarm's action has to be set in the alarm tab. Info on prevention status through rolling text

Functionalities: Enable compressor high temperature prevention Analogue input: CTx, dPx, SPx Alarms: CTx, A8E, A8F

TMx- Max compressor

temperature

THo- Comp Max Temp Prev Oﬀset

TLo- Comp Max Temp Prev Diﬀ It’s in °C

HPE- HP prevention enable 0=NO means disable

It’s in °C When the temperature CTx goes above TMx the alarm CTx is triggered. Note: the action of the alarm has to be deﬁned in the alarm tab

It’s in °C When the temperature CTx goes above TMx-THo, the screw compressor is set to minimum power Note: it works only for screw compressors

When the temperature CTx goes below TMx-THo-TLo, the screw compressor restart to work with- out limitation Note: it works only for screw compressors

1=YES means enable

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HPo- HP prevention oﬀset When the high pressure sensor goes above AHS-HPo, every PPt seconds the prevention decreases

the circuit power request by PPp

HPh- HP prevention hysteresis When the high pressure sensor goes below AHS-HPo -HPh, every PPt seconds the prevention in-

creases the circuit power request by PPp Note: See HPo parameter

LPE- LP prevention enable 0=NO means disable

1=YES means enable

LPo- LP prevention oﬀset When the low pressure sensor goes below ALS+LPo, every PPt seconds the prevention decreases

the circuit power request by PPp

LPh- HP prevention hysteresis When the low pressure sensor goes below ALS+LPo +LPh, every PPt seconds the prevention

increases the circuit power request by PPp Note: See LPo parameter

PPt-Pressure decreasing

power period

PPp-Pressure decreasing power %

HFo-HP fan oﬀset Deﬁnes the oﬀset to add /subtract to the setpoint FHS /FCS during the prevention

It is the period in between 2 corrections of the power request during the prevention

It is the correction (%) of the power request during the prevention

Note: if HFo=0 is like disable this function

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User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Superheat alarms

Parameter: SHh, AHI, Ahi, AHd

It gives the possibility to set a range outside which the superheating triggers an alarm; The alarm’s behaviour has to be set in the alarm’s tab

Functionalities: Enable superheating alarm on low and high values Alarms: SL1, SL2, SL3, SL4, SH1, SH2, SH3, SH3

SHh-Max superheat temp If the superheat goes above SHh alarm is triggered

SHl-Min superheat temp If the superheat goes below SHl alarm is triggered

SHi-Alarm hysteresis The alarms can be reset only in between SHl+SHi and SHh-SHi

SHd-Superheat alarm delay Used in the alarm tab to set the “Steady delay” from the UI

Oil temperature alarms

Parameter: OTm, OTi, OTd

Allows the temperature to be set above the level where an oil’s alarm is triggered; The alarm’s behaviour has to be set in the alarm’s tab

Functionalities: Enable compressors oil temperature alarm Analogue input: OT1, OT2, OT3, OT4, OT5, OT6, OT7, OT8 Alarms: OT1, OT2, OT3, OT4, OT5, OT6, OT7, OT8

OTm-Max oil temperature If the oil’s temperature goes above OTm alarm is triggered

OTi-Oil temp hysteresis The alarms can be reset only below OTm-OTi

OTd -Oil temp alarm delay Used in the alarm tab to set the “Steady delay” from the UI

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Screw compressors

Parameter: C01, C02, CSO, CSb, T1, T2,T3, T4, C07, C08, T5, T6, T21, T22, T24, T24, T25, T26, T27, T28, T29

Only 1 screw compressor per circuit can be managed bot in step and stepless mode.

Functionalities: Enable screw compressors Analogue output: CxV, PVx Digital output: C1, C1U1, C1U2, C1U3, C1U4, C2, C2U1, C2U2, C2U3, C2U4, C3, C3U1, C3U2, C3U3, C3U4, C4, C4U1, C4U2, C4U3, C4U4

C01- Rotation type Deﬁnes the start order of the compressors

0=LIFO means that there is no rotation and the last compressor to be cut in is the ﬁrst compressor to

be cut out, the cut-in order is C1,C2…Cn, and the cut-out order is Cn…C2, C1 1=FIFO means that there is no rotation and the ﬁrst compressor to be cut in is the ﬁrst compressor to be cut out, the cut-in order is C1,C2…Cn, and the cut-out order is C1,C2…Cn 2=tIME means running hours control; the compressor to be started is the one with the lowest number of run hours; the compressor to be stopped is the one with the highest number of run hours. 3=BIN means binary logic, it works only for 2 compressors:

• Below 33% of power request, works only C1

• Between 33% and 66% of power request, works C2

• Above 66% both compressors are allowed to work

2=SRM: Reserved

C02- Compressor type Deﬁnes the type of compressors

0=SCW means that the compressors are screw type, check parameters CS0 and CSb 1=StD means that the compressors are standard type (not screw type)

CS0- Capacity control mode Deﬁnes whether the screw compressor works in step or stepless mode

0=STeP means that the screw compressor provides predeﬁned steps of power, parameter H7 must

be equal 3. Note: the digital outputs CxU4 (the ones which pulse) are replicated on analogue outputs PVx

The period of pulsing is 2*C07, the contact stays closed per CO7 seconds

1=LESS means that the screw compressors provides modulating power, parameters H7 and IV0 must be equal 0

Note: the analogue output CxV is the compressor x power request

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Note: this parameter works only for C02=0

CSb- Compressor brand Deﬁnes if the compressor’s brand and so the behavior of digital outputs. See also parameter CS0

0=Other 1=Fras 2=Bitz 3=Gras

T1-Min time step1/ stepless

startup

T2-Min time step2 It's in seconds

T3-Min time step3 It's in seconds

T4-Min time step4 It's in seconds

C07- Unloaders for pulsing

time

C08- Unloaders Stop delay It’s in seconds

T5-Special management step1 It enables the functionalities of the parameter T6

T6-Max time step1 It's in seconds,

T21-Balance power

distribution

It's in seconds:

• For step compressor (CS0=0): the minimum time that the 1st step has to be kept before increase/cut oﬀ the compressor’s power

• For stepless compressor (CS0=1): The minimum time that the start stage has to be kept before increase/decrease the compressor’s power

Note: check parameter CS0, T5, T6

• For step compressor (CS0=0): the minimum time that the 2nd step has to be kept before

increase/ decrease the compressor’s power

Note: check parameter CS0

• For step compressor (CS0=0): the minimum time that the 3rd step has to be kept before

increase/ decrease the compressor’s power

Note: check parameter CS0

• For step compressor (CS0=0): the minimum time that the 4th step has to be kept before

increase/ decrease the compressor’s power

Note: check parameter CS0

It’s in seconds The CxU4 output pulses C07 seconds opened and C07 seconds closed Note: it only works for screw step compressors (CS0=0)

Deﬁnes the minimum time that the power step of the compressor has to be kept before increase/ decrease power

0=No 1=Yes

For step compressor (CS0=0), deﬁnes the maximum time that the compressor can keep step1, after that the compressor’s power will be increased Note: check parameter CS0 and T5

Used for stepless screw compressor. 0=No means that before cutting in a new compressor, the compressors which are working have to be at maximum power; before decreasing the compressor power, a compressor has to be switched oﬀ 1=Yes means that before increasing a compressor’s power, all the compressors have to be switched on

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T22-Minimum power Used for stepless screw compressor.

It’s in % Deﬁnes the minimum power request (in the circuit) above which the compressor is switched on. After this Start stage of the compressor the compressor will be allowed to work Note: check parameter T1

T23-Valve opening time Used for stepless screw compressor.

It’s in seconds Deﬁnes the minimum time that the compressor spends to reach maximum power starting from the start position Note: depends on the Pulsing period - check parameters T25 and T26

T24-Valve closing time Used for stepless screw compressor.

It’s in seconds Deﬁnes the minimum time that the compressor spends to reach the minimum power starting from maximum power Note: depends on the Pulsing period - check parameters T27 and T28

T25-Minimum time UP impulse

Used for stepless screw compressor. It's in milliseconds

T26-OFF time in between UP impulses

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Used for stepless screw compressor. It's in seconds

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

T27-Minimum time DOWN impulse

T28-OFF time in between DOWN impulses

T29-% limit for max Open/ Close

Used for stepless screw compressor. It's in milliseconds

Used for stepless screw compressor. It’s in seconds

Used for stepless screw compressors. It’s in % When the circuit’s power request goes above (100-T29)% the compressor reaches the “Maximum power 100%” stage

When the circuit’s power request goes below T29% the compressor is switched oﬀ

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Starting type of the compressor

Parameter: Sty, Sti, SSt, Stm, Sdd

For the start of big compressors is possible to select a

PARTWINDING logic or STAR-DELTA logic

Functionalities: Enable motor starting type selection Digital output: C1, C1P,C1S, C1D, C2, C2P, C2S, C2D, C3, C3P, C3S, C3D, C4, C4P, C4S, C4D, C5, C5P, C5S, C5D, C6, C6P, C6S, C6D, C7, C7P, C7S, C7D, C8, C8P C8S, C8D

Sty-Starting type Deﬁnes how to start a compressor in order to limit the start current

0=Dir : Direct start of the compressor (only Cx digital output) 1=PWin : Part winding start of the compressor (Cx and CxP digital outputs) 2=StDe : Star-Delta start of the compressor (Cx , CxS and CxD digital outputs)

Sti-Part winding delay It’s used for part winding starting type (Sty=1).

It's in milliseconds Just Sti milliseconds after the start of the xth compressor (Cx= Closed) the digital output CxP is closed

SSt-Compressor start delay It’s used for “star-delta” starting type (Sty=2).

It's in milliseconds Just SSt milliseconds before the start of the xth compressor (Cx= Closed) the digital output CxS is closed

Stm-Star time It’s used for “star-delta” starting type (Sty=2).

It's in milliseconds It’s deﬁnes how long the star stage will be kept, the digital output Cxs will be opened after Stm milliseconds from the compressor start (Cx=Closed)

Sdd-Star-Delta delay It’s used for “star-delta” starting type (Sty=2).

It’s in milliseconds It’s deﬁnes the delay between the closing of the “Delta” connection (CxD=Closed) from the opening of the “Star” connection (CxS=Closed)

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Economizer

Parameter: E01, EO2, EO3, EO4

The logic to manage the economizer considers one compressor per circuit, like in the case of screw compressors

Digital output: EC1,EC2, EC3, EC4 Analogue input: dp1. dp2, dp3,dp4

E01-ON Setpoint It’s in %

When the compressor’s power is >= E01% and the discharge pressure is below E03-E04, the economizer (digital output ECx) is opened

E02-OFF Setpoint It’s in %

When the compressor’s power is <= E02% the economizer (digital output ECx) is closed

E03-Pressure limit It’s in bar G

When the compressor’s power is >= E03 bar, the economizer (digital output ECx) is closed

E04-Pressure diﬀerential It’s in bar G

When the compressor’s power is >= E01% and the discharge pressure is below E03-E04 the economizer (digital output ECx) is opened

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Liquid injection

Parameter: T41, T42, T43, T44, T45

Liquid injection is managed in relation to the discharge temperature and/or the value of the super heat It’s designed for only one compressor per circuit.

Functionalities: Enable compressor’s liquid injection Functionalities: Enable EEV Digital output: LI1, LI2, LI3, LI4 Analogue input: dT1, dT2, dT3, dT4, and the value of the superheat

T41-Discharge temperature set It’s in °C

When the discharge temperature " dTx" goes above T41 and compressor x is switched ON, liquid injection valve "LIx" is opened

T42-Diﬀerential It’s in °C

When the discharge temperature "dTx" goes below T41 – T42, liquid injection valve "LIx" is closed. Note: if the compressor is switched oﬀ, the valve is closed

T43-EEV SH Oﬀset It’s in °C

When liquid injection x is working, the maximum SH of circuit x becomes T44-T43 and the minimum SH becomes T45-T43 Note: Overread is on EXD or EKE drivers or in the internal SH drivers

T44- EEV SH Max It’s in °C

It has to be equal to the maximum SH used in the SH control logic (parameter N09)

T45- EEV SH Min It’s in °C

It has to be equal to the minimum SH used in the SH control logic (parameter N10)

Compressor with unloaders

Parameter: C04, C05, C06, C08

A compressor with unloaders means a compressor able to share the power load in several stage. The number of stage is deﬁned by parameter H7 In the single compressor the activation of the unloader follows a ﬁxed sequence ( Cx->CxU1->CxU2>CxU3->CxU4)

Digital output: C1, C1U1, C1U2, C1U3, C1U4, C2, C2U1, C2U2, C2U3, C2U4, ….. C8, C8U1, C8U2, C8U3, C8U4, Note: Parameter H7 has to be > zero

C04- Unloaders activation mode

C05- Unloaders deactivation

mode

C06- Unloaders start delay It’s in seconds

C08- Unloaders Stop delay It’s in seconds

Deﬁnes how the increasing of the power between the compressors is managed

0=Cp: activation sequence is C1->C1U1->C1U2->… C2->C2U1 (saturation) 1=CCp: activation sequence is C1->C2->C1U1-> …-> C1U4 -> C2U1->…-> C1U4 (Cut in all the com-

pressors and saturate them one by one) 2=CCp1: activation sequence is C1->C2->C1U1->C2U1 … (Distribution)

Deﬁnes how the decreasing of the power in between the compressors is managed

0=pCpC : deactivation sequence is C1U4->…C1U1->C1->C2U4-C2U1->C2 (saturation) 1=ppCC : deactivation sequence is C1U4-> C2U4-> C1U3-> C2U3->…C1->C2 (distribution)

Start delay C06 among unloaders or between the compressor’s activation and its load step. Note: It avoids the activation of the compressor at full load.

Deﬁnes the minimum time that the power step of the compressor has to be kept before increase/ decrease power Note: it is also used in screw management

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Maximum number of compressor starts per hour

Parameter: CT0, CT1, CT2, CT3, CT4, CT5, CT6, CT7

How to

CT0- Minimum ON interval diﬀerent comp

CT1- Minimum OFF interval diﬀerent comp

CT2- Minimum OFF time It’s in seconds

CT3- Minimum ON time It’s in seconds

CT4- Minimum time between

2 ON same compressor

CT5- Max diﬀerence in running hours

CT6- Delay from evaporator pump/fan

CT7- Delay from cond pump/ fan

It’s in seconds Deﬁnes the minimum time between the switching on of diﬀerent compressors

It’s in seconds Deﬁnes the minimum time between the switching oﬀ of diﬀerent compressors

It does not work for inverter compressor (IV0=1) Deﬁnes the minimum time that the compressor has to stay switched OFF

It does not work for inverter compressor (IV0=1) Deﬁnes the minimum time that the compressor has to stay switched ON

It’s in seconds Deﬁnes the minimum time in between two starts of the same compressor: It means that if the compressor started at the 8:00:00, it will be allowed to start again after 8:00:00 after CT2 seconds Note: used to deﬁne the maximum number of starts/hour for the compressor

Works only for rotation “time” (C01=tIME). It's in minutes If a running compressor becomes older than a compressor switched oﬀ more than CT5 minutes, the logic will switch oﬀ the oldest compressor running; It will cause the other compressor to be switched on. The compressors timing (CT0,…CT4) is respected

It’s in seconds Deﬁnes the minimum delay from the evaporator’s pump before allow the switch on of the compressors.

It’s in seconds

• For the water-water chiller, this deﬁnes the time in between the external coil pump cutting in and

the ﬁrst start of the ﬁrst compressor in the circuit.

• For the water-air chiller, if CT7 > zero the fan is switched on( F12 %) CT7 seconds before of the ﬁrst

compressor of the circuit.

After the fan regulation will follow the normal one (check parameter F01)

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Valve in the liquid line

Parameter: Pd1, Pd2, Pd3, Pd4

Pump down before the circuit’s stop and equalization of the pressure before circuit’s startup

Digital output: LV1, LV2, Lv3, LV4 Digital input: PD1, PD2, PD3, PD4, LPL1, LPL2, LPL3,LPL4 Analogue input: SP1, SP2, SP3, SP4

Pd1-Pump down enable and

max time

Pd4- Pump down pressure set It’s in bar G

Pd2- Compressor ON delay

from liquid valve

Pd3- Start up suction pressure set

It’s in seconds

0=Disable >0=It deﬁnes the maximum pump down time.

The liquid valve LVx is closed before switch oﬀ the last compressor in the circuit. The compressor will switch oﬀ for the following reasons:

• Low pressure switch (LPLx)

• Suction pressure below Pd4 (SPx< Pd4)

• Pd1 seconds are elapsed from LVx closing

• The digital input PDx is closed (manual pump down)

Note: Pump down is not executed in case of alarm Note: if the sensor SPx is not present it is not considered

If the pressure of the circuit (SPx) goes below Pd4 during the pump down process the compressor is switched oﬀ

It’s in seconds Before starting the ﬁrst compressor in the circuit, the liquid valve is opened in order to decrease the pressure ratio of the circuit. The compressor will start if:

• The suction pressure goes above Pd3

• At the maximum after Pd2 seconds from liquid line valve opening

It’s in bar G See parameter Pd2

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Maximum compressor running hours

Parameter: C50

The hours counters can be reset in the menu, the menu has password level3

Alarms: A61, A62, A63, A64, A65, A66, A67, A68

C50-Maximum limit It’s in k Hours (1,000 hours)

When the running hours of the compressor Cx goes above C50 the alarm A6x is triggered

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Inverter compressor

Parameter: IV0, IV1, IV2, IV3, IV4, IV5

The inverter compressor will be switched on at ﬁrst and switched oﬀ last.

The inverter compressor will provide a large range of power. Below are the inverter behaviours alone or combined with other ON-OFF compressors

Digital input: OC1 Digital output: C1 Analogue output: C1

Note: the Danfoss Inverters can be driven through Modbus; Modbus communication reports the status of the inverter in the MCX user interface. Modbus communication with the inverter is enabled through the functionalities “Enable VSH Modbus control(Value=Modbus ID)” , MCX will be master in the Modbus communication. It will call the inverter with the ID reported in the functionalities tab (it can be changed)

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MCX will use the Modbus port 2, With MCX having only one Modbus port is required to enable also the functionalities “Modbus master on the ﬁrst 485 port

(for MCX08 and MCX061V)”

IV0-Inverter enable It enables the managing of the inverter compressor in the compressor C1

0=No 1=Yes

IV1- Minimum speed It’s in %

Deﬁnes the minimum speed of the inverter compressor, check also IV3

IV2- Maximum speed It’s in %

Deﬁnes the maximum speed of the inverter compressor, check also IV3

IV3- Start speed It’s in %

Deﬁnes the request that will switched on the inverter compressor (both Analogue Output and Digital Output),

IV4- Minimum ON time It’s in seconds

It works only for inverter compressor (IV0=1) Deﬁnes the minimum time that the compressor has to stay switched ON

IV5- Minimum OFF time It’s in seconds

It works only for inverter compressor (IV0=1) Deﬁnes the minimum time that the compressor has to stay switched OFF

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Compressor enabling

Parameter: CT1, CT2, CT3, CT4, CT5, CT6, CT7, CT8

CT1-CTx-CT8

Compressor x enable

0=No : compressor x can work 1=Yes : compressor x cannot work

Heaters

Parameter: HE1, HE2, HE3, HE4, HE5, HE6, HE7

The heaters work:

• for regulation (HE1,HE2 and HE3)

• Ice alarm (AIS, AID AI3)

Digital output: H1, H2, H3, H4 Digital input: OH1, OH2, OH3, OH4, OHL1, OHL2, OHL3, OHL4, OH Analogue input: TO1, TO2, TO3, TO4 Alarms: A90, A91, A92, A93, A94, Ar1, Ar2, Ar3, Ar4

HE1-Compressor ON/OFF

with heaters

HE2-Heaters setpoint in cooling

0= ON: compressor can work with the heaters switched on 1= OFF: compressor will be switched oﬀ if the heaters are switched on

Note: The times of the compressors (CT0-CT7) are respected

It’s in °C. It works in cooling mode. Deﬁnes the minimum tout evaporator temperature (TOx) below which the heaters are allowed to work, the cut-in of the heaters depends on the number of heaters (H5) and the diﬀerential temperature deﬁned by parameter HE3.

HE3-Heaters diﬀerential in cooling

HE4-Heaters setpoint in Heating

HE5-Heaters diﬀerential in heating

HE6-Heaters oﬀset in cooling It’s in °C.

HE7-Heaters oﬀset in heating It’s in °C.

It's in °C. Works in cooling mode. The heaters switched on between HE2 and HE2-HE3 °C Note: Check parameter HE2

It’s in °C. It works in heating mode. Deﬁnes the minimum tout evaporator temperature (TOx) below which the heaters are enabled to works, the cut-in of the heaters depends on the number of heaters (H5) and the diﬀerential temperature is deﬁned by parameter HE5. Note: check parameter HE2

It’s in °C. It works in heating mode. The heaters are switched on between HE4 and HE4-HE5 °C Note: Check parameter HE2

In cooling mode, the setpoint of the heaters becomes HE2+HE6, the sensor used to control the heaters are the maximum in between Tin, TOx, TFC and Tout Note: the "Enable enhaced low temparature managment" is required

In heating mode, the setpoint of the heaters becomes HE2+HE6, the sensor used to control the heaters are the maximum in between Tin, TOx, TFC and Tout Note: the "Enable enhaced low temparature managment" is required

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Pump of the internal coil

Parameter: P01, P02, P03, P04

In the case of a gas/water coil (H3=H2O) it is possible to manage up to 2 pumps in the water line: H4 <3 In the case of a gas/air coil (H3=Air) it is possible to manage up to 8 fans in the air line: H4 <3

Digital output: PE1, PE2, PE3, PE4, PE5, PE6, PE7, PE8 Digital input: FPE, OPE, OPE1, OPE2 Analogue input: TOM, WPR Analogue output: E1, E2, E3, E4 Alarms: A03, AP0, AP1, AP2, AP3, AP4, AP5, AP6, AP7, AP8

PO1-Evaporator pump/fan

working mode

0= OFF: Pump is always switched oﬀ; the ﬂow switch is detected 1= ON: Pump is switched on at the same time as the unit 2= ON_C: Pump is switched on only if there is a request to switch on a compressor, in which case

there will be a power request to cut in the pump; the pump is switched oﬀ P02 seconds after the compressors cut out

3= brSt: Pump is switched on P03 seconds than switched oﬀ for P04 minutes. The compressors can start only if the pump is running. If the compressor is switched on, the pump keeps running.

PO2-Pump/fan OFF delay from comp OFF

PO3-Pump ON pulse time It’s in second.

PO4-Pump OFF pulse time It's in minutes

It’s in second. Deﬁnes the minimum time that the pump has to work after compressor is cut oﬀ. Note: It works after the machine is switched OFF only if the compressor was running

This works with parameter P01=brSt, deﬁning the ON time in the pump’s cycle

This works with parameter P01=brSt, deﬁning the OFF time in the pump’s cycle

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Modulating Pump

Parameter: ERT, ECS, ECd, ECi, EHS, EHd, EHi, EDB, EI1, EI2, EI3

Functionalities: Enable evaporator variable capacity pump Analogue input: TOM, WPR Analogue output: VCP1, VCP2 Digital output: PE1, PE2

Note: works for P01=ON

ERT-Regulation type 0= TOM: The speed of the pump is deﬁned through the sensor TOM (Tout evap mix)

Note: in case of sensor fault is used the sensor TO1,

1= WPR: The speed of the pump is deﬁned through the sensor WPR (Water pressure)

ECS-Cooling setpoint It's in °C (or barG for ERT=WPR)

Note: Check ERT

ECd-Cooling diﬀerential It's in °C (or barG for ERT=WPR)

Note: Check ERT

ECi-Cooling integral time It's in °C (or barG for ERT=WPR)

Note: Check ERT

EHS-Heating setpoint It's in °C (or barG for ERT=WPR)

Note: Check ERT

EHd-Heating diﬀerential It's in °C (or barG for ERT=WPR)

Note: Check ERT

EHi-Heating integral time It's in °C (or barG for ERT=WPR)

Note: Check ERT

EDB-Dead band It's in °C (or barG for ERT=WPR)

Note: Check ERT

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EI0-Inverter enable 0=NO means that the pump’s variable speed control is disabled

1=YES means that the pump’s variable speed control is enabled

EI1-Minimum speed It’s in %

Deﬁnes the minimum speed of the pump

EI2-Maximum speed It’s in %

Deﬁnes the maximum speed of the pump

EI3-Max pump speed up time at startup

It’s in seconds Deﬁnes how long the pump holds the maximum speed during startup

Fan for the internal coil

Parameter: P21, P22, P50

For (H3=Air), (H1<3), (H4<3): The evaporator fan is driven on the basis of the pressure that is inside the internal coil. If the fans are shared between the evaporators (H12=yes) the pressure used is the worst one of the 2 circuits.

Note: if there are 2 evaporators which are separated, the outputs PE2 and EI2 will work for evaporator 2

Functionalities: Enable evaporator variable capacity pump Functionalities: Enable step management for evaporator fans Digital output: PE1, PE2 Digital input: OPE1, OPE1 Analogue input: low pressure or high pressure Analogue output: E1, E2 Alarms: AP1, AP2 ________________________________________

Second pump (internal coil): Managing another pump is only possible for circuit 1, as deﬁned by parameter P21

Digital input: OPE2 Digital output: PE2

P21-Pumps rotation type 0= bUP: Emergency mode: If the pump overload alarm A05 or ﬂow switch alarm A03 is active, the

second pump will replace the pump running; the A08 warning is generated. If the alarm goes back the A08 warning is reset.

1= Strt: Emergency mode more rotation to each restart (It also works for P01>1 ). 2= HOUr: Emergency mode more rotation when the gap of the working hours is bigger that P22

P22-Max run hours to force

rotation

P50-Maximum limit It’s in Hours*1000

It’s in Hours Used with P21=HOUr, deﬁnes the hours gap above which the pumps are rotated

If the pump works more than P50 hours * 1000 , the warning A10 (or A11) is generated

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Free cooling

Parameter: FrA, Fr1, Fr2, Fr3, Fr4, Fr5, Fr6, Fr7, Fr8, Fr9, FI1, FI2, FI3

The free cooling regulation uses the favourable conditions of outside air temperature to contribute to cooling the water. It uses an additional coil (free cooling coil) enabled through the free cooling valve which deﬂecting the return water from the plant if the outside air temperature conditions are favourable. Note: Free cooling management is active only in air/water units in cooling mode. Note: In case of multiple evaporators and condensers, the free cooling is handled only on the ﬁrst evaporator and condenser.

Functionalities: Enable free cooling capacity Digital output: FV1, FRC Digital input: OH1, OH2, OH3, OH4, OHL1, OHL2, OHL3, OH4, OH Analogue input: TFC, TOUt Analogue output: FV1, FRC, FC1 Alarms: A7Z, AFC, FRC

Fr0- Free cooling enable

and probe

Fr1- Delta Free-cooling It's in Kelvin

Fr2- Only Free-cooling

setpoint

FrA- Only free cooling delta It’s in Kelvin

Fr3- Only free cooling delay It’s in seconds

0=No means that the free cooling is disabled 1=Tin means that the free cooling regulation probe is TIN_Tin Evaporator 2=Tout means that the free cooling regulation probe is TO1_Tout Evaporator1

Deﬁnes the minimum temperature gap between TFC_Free Cooling Temp and the TOUt_Tout to en- able the free cooling logic. Note: free cooling is disabled when:

• The water circulation pump is not operating

• There is not a minimum temperature gap between TFC_Free Cooling Temp and the TOUt_Tout

(<(Fr1- 1.5°C))

• One of the following alarms has occurred: antifreeze alarm, serious alarm from digital input, pump

overload alarm, evaporator ﬂow alarm, fault of regulation probe, anti-freeze probe, free-cooling probe, outside temperature probe

It’s in °C If the outside temperature (TOUt_Tout) stays below Fr2 for more than Fr3 seconds the compressors are switched oﬀ. Note: check parameter FrA

If the outside temperature (TOUt_Tout) is above (Fr2+FrA) the compressors are allowed to work. Note: check parameter Fr2

Note: check parameter Fr2

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Fr4- Oﬀset free cooling valve It’s in °C

Deﬁnes the opening point of the free cooling valve (FV1 Free Cooling Valve)

Fr5- Diﬀerential free cooling valve

Fr6- Oﬀset free cooling fan It’s in °C

Fr7- Diﬀerential free cooling

fan

Fr8- AntiFreeze temp It’s in °C

Fr9- Free cooling/Cond priority 0=Cond means that in case of free-cooling and condensation that are working together the ana-

FI1- Minimum speed It’s in %

FI2- Maximum speed It’s in %

FI3- Max fan speed up time

at start up

It’s in °C Note: see the image in parameter Fr4

Deﬁnes the fan starting point related to the free-cooling request.

Note: The analogue output FRC_Free Cooling Fan is managed as in the image above; Note: For the analogue output FC1_Inverter Fan Cond 1 check parameter Fr9_ Free cooling/Cond

priority

It’s in °C Note: check picture in the parameter Fr6

If the outside air temperature TOUt_Tout is below Fr8 °C

• the alarm AFC_Free cooling ice alarm is generated,

• the main circulation pump is turned on and the free cooling valve is operated as follows:

– when the unit is OFF, it is open at 100% of its capacity – when the unit is ON, it is open at 10% of its capacity – The ON/OFF type valve is always open at 100%. Note: The procedure stops with a ﬁxed hysteresis of 1K.

logue output FC1_Inverter Fan Cond 1 follows the control of gas condensation 1= FrEE means that in case of free-cooling and condensation that working together the analogue output FC1_Inverter Fan Cond 1 follows the free cooling request

2=GrEA means that where free cooling and condensation are working together, the analogue output FC1_Inverter Fan Cond 1 uses the greatest value 3=Ind means that the analogue output FC1_Inverter Fan Cond 1 follows only the gas condensation

and the analogue output FRC_Free Cooling Fan follows the free-cooling request

Deﬁnes the minimum speed of the free cooling fan FRC_Free Cooling Fan

Deﬁnes the maximum speed of the free cooling fan FRC_Free Cooling Fan

It’s in seconds Deﬁnes the time that the FRC_Free Cooling Fan stays at the maximum speed during the cut in, after that, it will follow the free-cooling request

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Valve in the water line

Parameter: EF1, EF2

This valve will close the water line when the chiller is switched oﬀ

Functionalities: Enable water valve Digital output: EFV, PE1

EF1- Delay pump on from

valve

EF2- Delay valve close from pump oﬀ

It’s in seconds The valve EFV_Evaporator Pump Flow Valve is open when the chiller is switched on, EF1 seconds after the pump is allowed to work

It’s in seconds The valve EFV_Evaporator Pump Flow Valve will switched oﬀ EF1 seconds after a pump is cut oﬀ

External coil

Parameter: F01

Digital output: FC1, …, FC12, FI1, FI2, FI3, FI14, Digital input: OFC, FCL1. FCL2, FCL3, FCL4, OFC1, …, OFC12 Analogue input: dP1, dP2, dP3, dP4, SP1, SP2, SP3, SP4 Analogue output: FC1, FC2, FC3, FC4, DF1, …, DF12 Alarms: AF1, …, AF12, A50, A51, A52, A53, A54

F01-Condensation regulation

type

0=OFF means that the fans will not be managed 1= ON means that the fans are always ON. They are switched OFF only when the unit is OFF;

this setting does not work for the analogue output 2=ON_C means that if the circuit is operating, the relative fans are switched on. The fans will be switched oﬀ F03 seconds after the cut oﬀ of the last compressor in the circuit. 3=Prb means that the fans are managed in relation to the pressure inside the external coil: Note: check parameters H42, ex2 and F10 4=Ft0 means that the fans are regulated at 2 ﬁxed speeds based on the external temperature. If Tout<F22, speed is set to F20. If Tout>F22+F23, speed is set to F21 Note: it works only with F10=yes 5=TcP means that the fans are managed like F01=Prb but the adjustment (parameters FCs, FCd, …) of the parameters has to be in temperature; the software will translate pressure into temperature (check parameter o30)

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Fan requests

Parameter: F02, F03, FC, FCD, FCI, FCd, FHS, FHD, FHI, FHd

The request by the fan is calculated with PID logic. This request can be used with a stepless fan or spread to ON-OFF fans. Below is one example of how the fan request is managed in both the cases Note: it works for F01=Prb or TcP

F11=YES

F10=YES

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F02- Fan oﬀ with compressor OFF

F03- Pump/Fan OFF delay from compressor OFF

FCS-Cooling setpoint It’s in barG or °C (F01=TcP)

FCD-Cooling diﬀerential It’s in barG or °C (F01=TcP)

FCI-Cooling integral time It’s in seconds

FCd-Cooling derivate time It’s in seconds

FHS-Heating setpoint It’s in barG or °C (F01=TcP)

FHD-Heating diﬀerential It’s in barG or °C (F01=TcP)

FHI-Heating integral time It’s in seconds

FHd-Heating derivate time It’s in seconds

0=NO 1=YES means that the fan is allowed to work only if the relative circuit is switched on

Note: it works only for F01=3

It’s in seconds After the circuit cut oﬀ, the fan/pump is kept active for F03 additional seconds

This is the setpoint used for the PID control of the fan in chiller mode. Note: works for F01=Prb

This is the proportional band of the fan’s PID control in chiller mode. Note: works for F01=Prb

This is the integral part of the fan’s PID control in chiller mode. Note: works for F01=Prb

This is the derivate part of the fan’s PID control in chiller mode. Note: works for F01=Prb

This is the setpoint used for the PID control of the fan in heat pump mode. Note: works for F01=Prb

This the proportional band of the fan’s PID control in heat pump mode. Note: works for F01=Prb

This is the integral part of the fan’s PID control in heat pump mode. Note: works for F01=Prb

This is the derivate part of the fan’s PID control in heat pump mode. Note: works for F01=Prb

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Fan regulation with a variable proportional part

Parameter: F31, F32, F33, F34, F35, F36, F37, F24, F25

The proportional part (FCD or FHD) of the PID regulation for the fan control can be changed linearly:

Functionalities: Enable advanced condenser regulation Analogue input: Tout

F31- Cooling base out

temperature

F32- Cooling second diﬀ ref Check picture above

F33- Cooling second out

temp ref

F34- Heating base out temperature

F35- Heating second diﬀ ref Check picture above

F36- Heating second out

temp ref

F37- Diﬀerential minimum value

F24-Shaping X component It’s in %

Check picture above Note: works in cooling mode

Note: works in cooling mode

Check picture above Note: works in cooling mode

Check picture above Note: works in heating mode

Note: works in heating mode

Check picture above Note: works in heating mode

It’s in barG or °C (F01=TcP) Deﬁnes the minimum value allowed for the proportional band. Note: Check picture above

The parameters F24 and F25 deﬁne the shape of the PID output of the fan. The image shows the tuning of the fan PID

F25-Shaping Y component It’s in %

Check Parameter F24

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Economic setpoint for fan regulation

Parameter: SS1, SS2, SS3, SS4

Digital input: CSE1, CSE2, CSE3, CSE4

SS1-Second set point enable 0=NO

1=YES means that when the digital input CSEx is closed, the “x” external coil gets a new setpoint (SS2 for cool mode and SS3 for heat mode)

SS2-Cooling Second set point It's in barG or °C (F01=TcP)

Note: Check SS1

SS3-Heating Second set point It's in barG or °C (F01=TcP)

Note: Check SS1

SS4- Second set auto dec It's in barG or °C (F01=TcP)

When a compressor is at minimum power, the second setpoint becomes (SS2-SS4) or (SS3-SS4) Note: works only for screw compressor

Stepless regulation of the fan

Parameter: F10, F11, F12, F13, F14, F20, F21, F22, F23

Note: the pictures above are related to proportional regulation Note: it works for F01=Prb

Digital output: FI1, FI2, FI3, FI14 Digital input: OFC, FCL1. FCL2, FCL3, FCL4 Analogue input: dP1, dP2, dP3, dP4, SP1, SP2, SP3, SP4 Analogue output: FC1, FC2, FC3, FC4, Alarms: AF1, …, AF12, A50, A51, A52, A53, A54

F10- Inverter enable 0=NO

1=YES means that the analogue outputs Fcx are managed

F11- Minimum speed It’s in %

Deﬁnes the minimum speed of the fan InverterFanCondx (external coil) Note: see image above

F12- Maximum speed It’s in %

Deﬁnes the maximum speed of the fan InverterFanCondx (external coil) Note: see image above

F14- Max fan speed up time at start up

It’s in seconds Deﬁnes the time that the InverterFanCondx stays at the maximum speed during the cut in. After that, it will follow the fan’s request Note: see image above

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F20-Fixed speed low It’s in %

If the external temperature (AO_Tout) goes below F22, the InverterFanCondx is set to F20% If the circuit is switched oﬀ the AO_ InverterFanCondx is set to 0%

Note: It works only for F01= Fto Note: there are no diﬀerences between either machine mode (heating or cooling)

F21-Fixed speed high It’s in %

If the external temperature (AO_Tout) goes above F22+F23 , the InverterFanCondx is set to F21 % Note: It works only for F01= Fto Note: there are no diﬀerences between either machine mode (heating or cooling)

F22-Tout limit It’s in °C

Check parameter F20

F23-Tout hysteresis It’s in °C

Check parameter F21

Hot gas bypass valve

Parameter: Bp0, Bp1

Digital output: FC1, FC2, FC3, FC4 Analogue input: dP1, dP2, dP3, dP4, SP1, SP2, SP3, SP4

Bp0-Pressure set point It’s in barG

It is related to the external coil’s pressure Deﬁnes the pressure threshold above which the DO_FCx is closed Note: Check parameter Bp1

Bp1-pressure diﬀerential It’s in barG

It is related to the external coil’s pressure If the pressure goes below (Bp0-Bp1) the output DO_FCx is opened

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Cooling towers

Parameter: WFs, WFd

The cooling tower works in order to keep the temperature WLT below a WFs threshold ; Note: The cooling tower works only if the chiller’s condenser fan/ pump is working (DO_ FC1)

Functionalities: Enable water loop pump management Digital output: WLF, FC1 Analogue input: WLF Analogue output: WLF

WFs-Water fan setpoint It's in °C

The cooling tower is managed based on the water temperature WLT. The cooling tower linearly increases the analogue output AO_WLF between WFs-WFd and WFs °C , as shown in the image below

WFd-Water fan diﬀerential It’s in °C

Note: check parameter WFs

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Reversing cycle valve (4 ways valve)

Parameter: rE2, rE1, rE3, rE4

The working mode of the chiller is deﬁned by parameter rE2. The reversing cycle valve will switch with rE1 seconds of delay from the cut oﬀ of the last compressor running

Functionalities: Enable Heat Pump Control Digital input: HC Digital output: HC1, HC2, HC3, HC4 Analogue input: Tout

rE2-Changeover from 0=DI means that the working mode is deﬁned by Digital Input HC

1=UI means that the working mode is deﬁned by parameter y03 and the digital input HC. The

mismatch between the 2 ways to set the working mode is solved considering that the last request (from DI or from UI) will win. If the DI does not match the working mode, the DI will start to work only after being passed through the actual status

2=Tout means that the working mode is deﬁned by the probe Tout (check parameters rE3 and rE4)

rE1-Change over delay It's in seconds

rE1=0 means that the compressors are not switched oﬀ for switching the 4 way valve rE1<>0 means that the working mode is changed following 3 steps:

• Switch oﬀ all the running compressors

• After rE1 seconds, the 4-way valve is switched

• After rE1 seconds the compressors are enabled to work

rE3-Changeover setpoint It’s in °C

If the outside temperature (AI_Tout) goes below rE3 °C the working mode becomes heating Note: works only if rE2=2

rE4-Changeover diﬀerential It’s in °C

If the outside temperature (AI_Tout) goes above rE3+ rE4 °C the working mode becomes cooling Note: works only if rE2=2

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Defrost

Parameter: d01, d02, d03, d04, d05, d06, d07, d09, d10, d11, d12, d13, d14, d15, d16, d20, d22, d23, d25, d26

The circuit suction pressure detects the condition to defrost the circuit;

Functionalities: Enable Heat Pump Control

Digital input: DEF Digital output: H1, H2, H3,H4 Analogue input: dP1, dP2, dP3, dP4, SP1, SP2, SP3, SP4, Tout, TD1, TD2, TD3,TD4 Warning: A13

d01-Defrost enable 0=NO: disable

1=All: means that the defrost is performed across circuits at once when at least one circuit

requires defrosting 2=Ind: means that the defrost is performed only in the circuits which have to be defrosted and the other circuits are switched oﬀ

d02-Defrost type 0=SpEp: means that the defrost is detected and stopped in relation to the probe SPx

(see parameters d09-d10) 1=SpEt: means that the defrost is detected in relation to the probe SPx and the defrost is stopped only after d15 minutes (Defrost maximum time)

2=StEt: means that the defrost is detected and stopped in relation to the probe TDx (see parameters d11 and d12) 3=StEM: means that the defrost is detected in relation to the probe TDx and the defrost is stopped only after d15 minutes 4=Comb: the defrost is performed as d02=SpEp but the procedure to start defrosting will work only if the AI_TCDx < d11, the procedure to end the defrosting will work only if the AI_TCDx > d12

d03-Defrost digital input

conﬁg

d04-Heaters ON while defrosting

d05-Fan management while defrosting

0=NO: Digital input DEF does not work 1=Strt: If the DI_DEF is closed, the defrost is performed ( d16 can delay the start) 2=End: If the DI_DEF is opened, the defrost is stopped; If the DI_DEF is closed, the defrost starts or stops according to the manner selected with d02 3= StEn: The digital input is used to start defrosting (when toggled from closed to open) and to stop

defrosting (when toggled from open to closed)

0=NO: 1=Strt: This means that the heaters are switched on during defrosting (in order to reduce the cold

eﬀect of the defrosting action)

0=OFF: It means that during defrosting and the dripping phase the fan is switched oﬀ 1=EqUA: It means that during defrosting the fan works in cooling mode 1=ONdr: It means that during defrosting the fans are switched oﬀ and during the dripping phase the

fan is switched on 100%

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d06-Fan only defrosting It’s in °C

0: It means that this function is disabled >0: It means that the defrost is only performed with the fan when the external temperature is Tout>d06; in this case, when defrosting is detected the compressors are switched OFF and the fan is

set to 100%. Note: the start and stop conditions and the support heaters management stay unchanged

d07-Enable LowP alarm in defrost

d09-Defrost start setpoint It’s in bar G

d10-Defrost stop setpoint It’s in bar G

d11-Combined defrost temp

start setpoint

d12-Combined defrost temp stop setpoint

d13-Defrost temp start verifying time

d14-Defrost minimum time It’s in sec

d15-Defrost maximum time It’s in minutes

d16-Minimum time to defrost

same circuit

d20-Waiting time after defrosting

0=NO: 1=Yes

If the pressure dPx stays below d09 for more than d13 seconds, defrosting is detected Note: works for d02=0, d02=1 and d02=4

If the pressure dPx goes above d10 defrosting is completed Note: it works for d02=0 and d02=4

It’s in °C If the temperature TCDx stays below d11 for more than d13 seconds, defrosting is detected Note: it works for d02=2, d02=3 and d02=4

It’s in °C If the temperature TCDx goes above d12 defrosting is completed Note: it works for d02=2 and d02=4

It’s in seconds Check parameters d09 and d11 Counting is stopped but not reset when the temperature/pressure goes beyond that limit d11/d09. Counter is reset at power ON or when the defrost cycle starts.

Defrosting can be switched oﬀ only after d14 seconds.

This represents the maximum duration for defrosting beyond which defrosting is stopped and the A13 warning occurs. This warning is reset after a correct defrost cycle. Note: If d02=1, parameter d15 deﬁnes the duration of defrosting.

It’s in minutes Deﬁnes the minimum wait time to defrost the same circuit Note: Ignored if the request to defrost comes from a digital input

It’s in seconds Deﬁnes the dripping time after the coil is defrosted: also check parameter d25

d21-Start verifying time It’s in seconds

Used to force defrosting to start If the pressure is maintained for d21 seconds below d22 the defrost will start

d22-Start setpoint It’s in bar

Used to force defrosting to start If the pressure is maintained for d21 seconds below d22 the defrost will start

d23-Compressor power in defrost

d25-Force compressor ON during dripping

It’s in °C Deﬁnes the circuit power to be used during defrosting

0=NO: 1=Yes: This means that the compressor is kept running during the dripping phase

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d26-Waiting time for reducing It’s in seconds

It works only with rE1=0 and for stepless screw compressors. When defrosting is detected, the compressor is set to the minimum (the decrement valve is held open) starting from the detection of defrosting we wait d26 seconds before going into cooling mode; After dripping we do the same;

Heat recovery

Parameter: HRs, HRm, HRc, HRn, HRt, HRo

Functionalities: Enable heat recovery management Digital input: HRE, HRD Digital output: HRV Analogue input: HRP Alarm: A9A

Note: sensor A9A’s alarm will switch oﬀ the heat recovery after HRc seconds

HRs-Heat Recovery Set It’s in °C

If the temperature HRP goes below HRs °C, the digital output HRV is closed Note: if the digital input HRE= close the digital output HRV is closed too Note: if the parameter HRn=0 or DI_HRD=Close the heat recovery is disabled

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HRm-Heat Recovery Max temperature

HRc-Heat Recovery Cut Out Delay

HRn-Heat Recovery Max Cycles per Hours

HRt-Heat Recovery fan oﬀ 0=NO: this means that there are not changes in the fan management

HRo-Heat Recovery Cond set

Oﬀset

It’s in °C If the temperature HRP goes above HRm °C, the digital output HRV opens after HRc seconds

Note: If the temperature HRP goes above HRm °C, the fan can work immediately

It’s in seconds Check parameter HRm

HRn=0: this means that this function is disabled HRn>0: Deﬁnes the maximum number of times that recovery can start per hour

1=Yes: This means that the fan is switched oﬀ if the heat recovery is working

It's in bar When the heat recovery is working, the fan’s setpoint is increased by HRo bar ; Note: it works only in cooling mode

Superheat

Parameter: V10, V20, bAt, ex1, ex2, ex3, N19, N04, N05, N20, N22, N10, N09, N11, N32, N18, N17, N15, N21, SHO

The software manages a number of valves equal to the number of circuits (H1 * H2). Are available internal valves driver (for MCX152V or MCX061V) or the connection trough CANBUS with the Danfoss EXD/EKE 1C driver. Note: the superheat algorithm is the same for EXD and MCX.

Functionalities: Enable EEV using EKE 1C Enable MMI navigation Functionalities: Enable EEV using EXD 316 Functionalities: Enable EEV using MCX driver

Analogue input: SP1, sT1, SP2, St2 Analogue output: SH1, SH2 Alarms: E10, …, E49

Note: inputs and outputs are related to the internal valves

v10-Valve 1 type 0=ETS 25

1= ETS 50 2= ETS 100 3= ETS 250 4= ETS 400 5=Custom 6=UKV 7=ETS Colibri

Note: this only works for MCXxxV. Deﬁnes the type of valve that will be used. With v10 =5, the valve’s drive setting is conﬁgured by editing the ﬁle CustomValveParameters.c “inside the BIN/IOUtils folder.

v20-Valve 2 type Check parameter v10

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bAt-Enable battery check 0=No

1= Yes: if the voltage of the battery goes below 12 V, alarm E18 EEV1 battery low is generated

Note: this only works for MCXxxV,

ex1-First EEV add. Oﬀset ex1= 0: the EXD/EKE drivers are not managed

ex1<> 0: Deﬁnes the CANBUS address of the ﬁrst EXD/EKE driver; the CAN address of the other

drivers, if any, must be consecutive to the ﬁrst and without gaps.

Note: Refer to the speciﬁc document on how to set the CAN address on the EXD/EKE drivers; we suggest setting ex1 to 20 as it is the default address of the EXD drivers.

ex2-Deﬁne suction pressure source

ex3-Number of EEV per circuit ex3=1 means that there is 1 valve per circuit

N19-Damping of ampliﬁcation

factor N04

N04-P Ampliﬁcation factor Kp If the Kp value is reduced the regulation becomes slower.

N05-Integration time Tn If the Tn value is increased the regulation becomes slower.

N20-Ampliﬁcation factor for

the SH

N22-Min superheat ref per load under 10%

N10-Min superheat ref Warning! Due to the risk of liquid ﬂow the setting should not be lower than approx. 2-4 K.

N09-Max superheat ref

N11-MOP point in press

(bar G)

N32-Max valve opening degree

N18-Stability factor for superheat control

N17-Signal safety during start-up

N15-Start-up time for safety signal

N21-Deﬁnition of superheat control mode

SHO-Superheat output type 0=SM: Superheat control is performed over MCX Stepper Motor

0=MCX means that evaporator pressure is read from an MCX analogue input 1= EEV means that evaporator pressure is read through CANBUS, from the analogue input of the EXD Note: check parameter H42

ex3=2 means that there are 2 valves per circuit

Note: in case of ex3=2 and ex2=1 the suction pressure is read from the ﬁrst driver Note: ex3=2 works only with EXD drivers, in case of 2 circuits the ﬁrst 2 drivers are in the circuit 1

This setting damps the normal ampliﬁcation Kp, but only just around the reference value. A setting of

0.5 will reduce the KP value by half. The value should only be changed by specially trained staﬀ.

This setting determines the valve’s opening degree as a function of the change in evaporating pressure. An increase of the evaporating pressure will result in a reduced degree of opening. When there is a drop in the low-pressure thermostat during startup, the value must be raised a bit. If there is pendling during startup, the value must be reduced a little. The value should only be changed by specially trained staﬀ.

The value must be smaller than “N10”

Measured in bar G

The valve’s opening degree can be limited. The value is set in %

A higher value will allow the control function a greater ﬂuctuation of superheat before the reference is changed. The value should only be changed by specially trained staﬀ.

The control function uses the value as start value for the valve’s opening degree at each thermostat cut-in. The controller continuously calculates new values by adaptive control. The value should only be changed by specially trained staﬀ.

If the controller does not obtain a reliable signal within this period of time, the controller will try to establish a stable signal in other ways. (Too high a value may result in a ﬂooded evaporator). The value should only be changed by specially trained staﬀ.

N21=0: the superheat reserence is N10 N21=1: Lowest permissible superheat (MSS). Adaptive regulation. N21=2: Load-deﬁned superheat. The reference is established based on the line formed by the three points: N09, N10 and N22.

1=AO: Superheat control is performed over MCX Analogue Output 2=Inr: inner loop regulation and S4 temperature less T0 (double loop)

Note: the parameters N19,...,SHO work only for MCXxxV.

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Input output expansion module

Parameter: XCn

It is possible to use only one additional MCX as IO expansion module, the connection is through CANBUS. The MCX when is not programmed (as it is out of the box) is ready to be used as expansion module. By adjusting parameter XCn the software is ready to get connection

Alarms: Cn

XCn-Expansion can address The software looks for input output expansion module on the CANBUS address XCn

Auxiliary alarms

Parameter: a11, a21, a31, a41, a12, a22, a32, a42, a13, a23, a33, a43, a 14, a24, a34, a44

Functionalities:

• Enable auxiliary alarms from analogue input

• Hide auxiliary alarms notiﬁcation, enabled only the Digital Outputs

Analogue input: Ax1, Ax2, Ax3, Ax4 Digital input: All Digital output: Ax1, Ax2, Ax3, Ax4 Alarms : Ax1, Ax2, Ax3, Ax4

Note: the action of the alarm has to be deﬁned in the alarm tab Note: with the “Disable the alarm of the auxiliary alarms” functionality it is possible to disable the alarms but keep the action of the alarms

a11,a21, a31, a41- Aux alarm x cut-in

a12, a22, a32, a42- Aux alarm x cut-out

a13, a23, a33, a43- Aux alarm x AI selection

a14, a24, a34, a44- Aux alarm x DI selection

Deﬁnes the analogue input to detect the auxiliary alarm.

a13=SPP means analogue input ax1 a13=AI1 means analogue input 1

Deﬁnes the digital input to detect the auxiliary alarm.

a14=SPP means digital input AX1 a13=AI1 means analogue input 1

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Oil Alarm Tandem

Parameter: BME, BST, TD1, TD2, TD3, TD4, ADO, BOF, BFR

- Scenarios: On-OFF and variable speed (VS) Danfoss tandem compressors

- Purpose: recover oil from ON-OFF compressor (Balancing mode) or from the pipes line (Boost mode)

- During the Balance action the ‘BAW_Balance Action Warning’ warning is turned on

- During the Boost action the ‘BOW_Boost Action Warning’ warning is turned on

Functionalities: Enable Oil Alarm Tandem Control Digital input: LEV Digital output: C1, C2 Analogue output: C1 Alarms: OLA, BAW, WBW, BOW, OPA

OME-Oil Manager Enable OME=Yes means that the logic is enabled

BST-Boost action speed Deﬁnes the speed of the inverter compressor during the logic in balance and boost action,

in both the cases

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User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

TD1-Maximum single oil Balance action time

TD2-Interval after stop Balance action

TD3-Maximum single oil Boost action time

TD4-Interval after stop Boost action

Balance Action can take at the maximum TD1 minutes, if it will take more time, the Boost action will be turned on

TD2 deﬁnes a minimum time in between two Balance action, if the oil lack comes sooner of TD2 the software will perform a Boost action

Boost Action can take at the maximum TD3 minutes, if it will take more time:

- “OPA -Oil protection” alarm is generated The Boost action is stopped

TD4 deﬁnes a minimum time in between two Boost actions, if it will take less time:

- “OPA -Oil protection” alarm is generated

- The Boost action is stopped

ADO-Start Delay Oil level alarm

BOF-Boost action oﬀset Deﬁnes the minimum temperature gap between the reference and water temperature which allows

BFR- Stop free cooling on

boost action

Alarm delay

to start the Boost action, if the gap is smaller than the BOF:

- “WBW - waiting for boost action” warning is generated

- The boost action is frozen (not started ) The boost action will start as soon the temperature gap will be bigger than “BOF - Boost action oﬀset”.

Deﬁnes if free cooling is performed during the Boost action

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Compressor Oil Pump

Parameter: OPE, OPO, OT1, OT2

Oil pump is used to push oil inside the compressors. The DI_ OPx (represents the trip alarm of the oil pump) switches oﬀ the oil pump OPx

Functionalities: Enable oil pump Analogue input: OP1, …, OP8, Sp1, …, Sp4, dP1, …, dP4 Digital output: OP1, …, OP8 Digital input: OP1, …, OP8 Alarm: OP1, …, OP8, A8G, A8H, A8I, A8J, A8K, A8L, A8M, A8N

OPE- Oil Pump Enable 0=NO: Disable

1=ON_C: means that the oil pump OPx is switched ON OT1 seconds before the activation of

compressor x Note: An information is shown in the “rolling text” when compressor is delayed 2=Prb means that oil pumps work as ON-C but if the delta pressure OPx – suction pressure is greater than OdP+OPO the DO_OPx is switched oﬀ. Oil pump starts up again when delta pressure goes below OdP+OPO Note: CX-OILP information is shown in the “rolling text” when a compressor is delayed

OPO- Oil Pump Oﬀset It's in bar

Check parameters OPE =Prb

OT1- Delay compressor from oil pump

OT2- Oil pump min time ON It's in minutes

It’s in seconds Check parameters OPE =ON_C

The oil pump has to work at least OT2 minutes before switching oﬀ

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User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Temperature delta of the oil

Parameter: OTD, OD1, OD2

The start of the compressor is delayed up to the temperature of the oil is ok

Functionalities: Enable oil temperature delta control Analogue input: OT1, …, OT8, Sp1, …, Sp4, dP1, …, dP4 Alarm: A8O, A8P, A8Q, A8R, A8S, A8T, A8U, A8V

OTD- Enable oil temperature

delta control

OD1- Oil Temperature Delta It’s in °C

OD2- Delta Control Max Time It's in minutes

0=NO: Disable 1=Yes: means that the start of the compressor is delayed up to the delta temperature OTx – T (suction pressure ) goes above OD1 °C.

The maximum delay is OD2 seconds Note: CX-OTD information is shown in the “rolling text” when a compressor is delayed

Check parameters OTD =Yes

How to set the power request remotely

Parameter: RPE, RPS

- Set parameter RPE or RPS <> NO

- Write 1 to the Modbus address17501 (ADU), at least 1 time per minute

(it is used to check the connection)

- Write power request (0-1000) to the address 17502 (ADU)

- Write external coil circuit 1 speed (0-1000) to the address 17548 (ADU) -

use it also for fans in common

- Write external coil circuit 2 speed (0-1000) to the address 17549 (ADU)

- Write external coil circuit 3 speed (0-1000) to the address 17550 (ADU)

- Write external coil circuit 4 speed (0-1000) to the address 17551 (ADU)

Functionalities: Enable remote power demand

RPE - Remote power enable 0=NO means that the function is disabled

1= YESA means that without remote connection, the machine works as RPE=NO 2= YESB means that without a remote connection, the power request of the chiller goes to zero

RPS - Remote fan enable 0=NO means that the function is disabled

1=YESA means that without remote connection, the machine works as RPS=NO 2=YESB means that without remote connection, the fan speed goes to zero

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

How to log data on an SD card

Parameter: ENL

Only available for SD-card-compatible MCXs (MCX152V and MCX061V). 1- It is possible to start/stop data logging through the parameter ENL_Enable SD Card Log. If you want to restart the data logger from

zero, it is enough to delete the ﬁle from the SD card memory. 2- By editing the ﬁle SDCardLogDeﬁnes.c (in the BIN folder), it is possible to deﬁne the variables which will be stored in the SD card 3- The variables available are reported in the ﬁrst part of the SDCardLogDeﬁnes.c ﬁle, consisting mainly of all the input/output functions

and a few status variables. If you are going to use variables not traced in the ﬁle, contact MCX Support 4- In the second part of the .c ﬁle, the following can be edited:

a. The number of records: when the records reach this number, the oldest record will be overwritten by the most recent (circular ﬁle)

b. Sample time: the time between two records

c. The variables to log: the maximum number of variables is 32, and the variable’s name must be the same as the ﬁrst part of the .c ﬁle

5- To read the ﬁles on the SD card using a decode program, download the “DecodeLog” folder available on the MCX site and save it to the

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User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

C disk

6- Extract the memory card from the MCX and copy and paste the ﬁles to the SD card in the “DecodeLog/Disk1” folder

7- From the “DecodeLog” folder, run the batch ﬁle “decodeSDCardLog”; it will generate the .csv ﬁles with encoded data.

8- Events are recorded in the events.csv ﬁle. There are six columns:

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

a. Event time: the time of the event (start event, stop event, parameters change and RTC change) b. EventNodeID: the ID of the MCX c. EventType: a numerical description of the event type

i. -2: Reset of MCX history alarm ii. -3: RTC set iii. -4: Start alarm iv. -5: Stop alarm v. 1000: Parameters change (note: the change can be detected only when it is made through a user interface and not via serial communication)

d. Var1: a numerical description of the variable. To decrypt it, open the “AGFDeﬁne.c” ﬁle in the “App” folder of the MCXDesign software.

In this ﬁle there are two sections with an ID indication: one is for the parameters and the other is for the alarm. If the event type is 1000, refer to the index parameters list; if the event type is -4 or -5, refer to the index alarms list. These lists contain the variable names corresponding to each ID (not to the variable description – for the variable description, refer to MCXShape).

e. Var2: used to record the parameter value before and after the change. This number is a double integer; in the high part there is the

new parameter value and in the low part there is the old value.

f. Var3: not used.

Functionalities: Enable SD Card Log

ENL- Enable SD card log 0=NO means that the log is stopped

1=YES means that the log is started

Note: If you want to restart the data logger from zero, it is enough delating the ﬁle into the SD card memory

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User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Commissioning

Parameter: Ort

Overwriting an Analogue input: using the Modbus, write value 1

into the “Enable Override” register ﬁrst, then it is possible to write the “Override input value” register.

Overwriting of Digital output: write through Modbus the value 1 to the “Enable Override” register ﬁrst, then it becomes possible to write the relative bit of the “Override input value” into the register.

MCX analogue input

1 21537 1005

2 21538 1006

….

26 21562 1030

Overwriting an Analogue output: Using Modbus, write the value 1 into the “Enable Override” register ﬁrst, then it will be possible to write the “Override input value” into the register.

MCX analogue output

1 21505 1037

2 21506 1038

….

12 21516 1048

Overwriting of Digital input: write through Modbus the value 1 to the “Enable Override” register ﬁrst, then it becomes possible to write the relative bit of “Override input value” into the register.

MCX digital input Enable MB

1 21601 21637. Bit08

2 21602 21637. Bit09

…. … …

8 21608 21637. Bit15

9 21609 21637. Bit00

…. … …

16 21616 21637. Bit07

17 21617 21638. Bit08

24 21624 21638. Bit15

25 21625 21638. Bit00

… … …

32 21632 21628.Bit 07

Enable MB register(ADU) 0=Disable, 1= enable

Input MB register(ADU)

(0-1000)

Input MB register(ADU)

(0-1000)

Input MB register(ADU)

MCX digital output Enable MB

1 21569 21635. Bit08

2 21570 21635. Bit09

…. … …

8 21576 21635. Bit15

9 21577 21635. Bit00

…. … …

16 21584 21635. Bit07

17 21585 21636. Bit08

24 21592 21636. Bit15

25 21593 21636. Bit00

… … …

32 21600 21636.Bit 07

Overwriting of functions used in the analogue input: write through Modbus the value 1 to the “Enable Override” register ﬁrst, then it becomes possible to write the relative “Override input value” register.

Functions for analogue inputs Note: the order follows the list of functions into MCXS

TIN-Tin evaporator 20002 18502

T01-Tout

evaporator 1

…. … …

WPR-

Water pressure

Overwriting of functions used in the digital input: use Modbus

Enable MB register(ADU) 0=Disable, 1= enable

20003 18503

21093 18593

Input MB register(ADU)

(0-1000)

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

to write the value 1 into the “Enable Override” register ﬁrst, then it becomes possible to write the relative “Override input value” into the register.

Functions for digital inputs Note: the order follows the list of functions into MCXS

OC- Comp overload 21002 17502

OCL1- Comp over-

load C1

…. … …

Functionalities: Enable override of inputs and outputs

Functionalities: Enable commissioning form

Ort- Override IO Timeout It's in seconds

Enable MB register(ADU) 0=Disable, 1= enable

21003 17503

Deﬁnes how long the override of inputs and outputs will work Note: zero means disable

Input MB register(ADU)

(0-1000)

Functionalities: here there is the explanation of the not reported functionalities

Enable AI probe calibration It enables the menu Cal-Probe Calibration

Enable multi input average It allows to use more than one time the same sensor, the value used into the logic is the average in

between the inputs wired with the same sensor (the broken sensor is managed)

Enable digital output notiﬁcation for alarms and status

Enable small chiller (1C2c) It allows to save memory due to restriction on the conﬁguration:

Enable medium chiller (2C4c) It allows to save memory due to restriction on the conﬁguration:

Enable polarity of the AI_DI_x functions

Enable remote keys It enables the digital inputs K01, …, K06

It enables the digital outputs NC0, N01, …, N14 Note: the purpose is the one to save memory

- 1 Circuit

- Up to 2 compressors

- 1 external coil

- 1 heater

- 2 Circuit

- Up to 4 compressors

- Up to 2 external coils

- Up to 2 internal coils

- Up to 2 heaters

It allows to set the polarity of the digital functions when they are coming from the analogue inputs through the ﬁle BIN/AIDIPolarities.c

The DIs K01, …, K06 replicate the keys of the MCX (you’ll be able to navigate into the built in MCX display)

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Enable remote keys for MMI The DIs K01, …, K06 replicate the keys of the MMIGRS2 (you’ll be able to navigate into the MMIGRS2

display) Note: functionality “Enable remote keys” is required

Enable setting alarm history events number

Enable LED display It is required for LED display (MCX06C, MMILDS)

Enable remote key

It allows to deﬁne the number of events inside the alarm history through the value beside the functionality

Note: it eﬀects on the amount of EEPROM available

Note: The LCD interface is always available by connecting an MMIGRS2 display over CANBUS

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Graphic diagrams of some of the managed unit types

Air / Water

Air / Water chiller, 1 circuit

FlowCond

CondFanOvld

CondFan ON/OFF

CONDENSER

AI_Cond

InverterComp 0 / 10 V

Inverter FanCond

compressor

HP LP

CompOvld

Comp ON/OFF

LiqValve ON/OFF

TEV

E V A P O R A T O R

Air / Water chiller, 1 evaporator and 1 condenser with 2 circuits

GeneralOvld GeneralAlarm

ON/OFF

Set2

Tout

Tout Evaporator

HeaterOvld

Heater ON/OFF

Tin Evaporator

FlowEvap

EvapPump ON/OFF

EvapPumpOvld

Danfoss

80G190.01

FlowEvap

CondFan ON/OFF

Inverter FanCond

AI_Cond1 AI_Cond2

LiqValve ON/OFF LiqValve ON/OFF

circuit n. 1

compressor

Cn Cn

HP HPLP LP

Comp1Ovld

Comp ON/OFF

InverterComp 0 / 10 V

TEV TEV

C O N D E N S E R

V A P O R A T O R

FlowCond

CondFanOvld

Tout Evaporator

Tin Evaporator

EvapPump ON/OFF

EvapPump Ovld

circuit n. 2

HeaterOvld

Heater ON/OFF

compressor

GeneralOvld

GeneralAlarm

ON/OFF

Set2

Tout

Comp2Ovld

Comp2 ON / OFF

Danfoss

80G191.01

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Air / Water

Air / Water chiller, 2 circuits, 2 evaporators, 2 separated condensers

FlowCond

CondFan1Ovld CondFan2Ovld

CondFan1 ON/OFF

CONDENSER CONDENSER

FanCond1 0 / 10 V

AI_Condenser1 AI_Condenser2

circuit n. 1

compressor

Cn Cn

HP HPLP LP

Comp1Ovld Comp2Ovld

Comp1 ON/OFF Comp2 ON/OFF

InverterComp1 0 / 10 V

Liquid valve ON/OFF

TEV TEV

antifreeze antifreeze

Tout Evaporator1 Tout Evaporator2

E V A

P O R A

T O R

Heater1 Ovld

Heater1 ON/OFF

FlowEvap

ToutEvapMix

Heater2 Ovld

Heater2 ON/OFF

TinEvaporator

PumpEvap ON/OFF

PumpEvapOvld

Liquid valve ON/OFF

E V A

P O R A

T O R

compressor

FlowCond

CondFan2 ON/OFF

circuit n. 2

GeneralOvld

GeneralAlarm

ON/OFF

Set2

Tout

FanCond2 0 / 10 V

Danfoss

80G192.01

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Heat Pump

Air / Water Heat Pump, 1 evaporator and 1 condenser with 2 circuits

FlowEvap

CondFan1

FanCond regulation on:

- highest value in cooling

- lowest value in heating

circuit n. 1

ON/OFF

FanCond1 0 / 10 V

O U

T D O

AI_Condenser1 AI_Condenser2

Liquid valve ON/OFF

TEV TEV

O R

C O

N D O O R

C O

FlowCond

CondFan2Ovld

Liquid valve ON/OFF

Tout Evaporator1

Heater1 Ovld

Heater ON/OFF

RevValveRevValve

circuit n. 2

Danfoss

80G193.01

chiller

compressor

HP HPLP LP

Comp1Ovld

Comp1 ON/OFF

InverterComp 0 / 10 V

chiller

Cn Cn

TinEvaporator

PumpEvap ON/OFF

PumpEvapOvld

chiller

compressor

Comp2Ovld

Comp2 ON/OFF

chiller

Defrost

Heat / Cool

GeneralOvld

GeneralAlarm

ON/OFF

Set2

Tout

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Heat Pump

Air / Water Heat Pump, 2 circuits, 2 evaporators, 2 separated condensers

Heater1 Ovld

Heater ON/OFF

TinEvaporator

FlowEvap

ToutEvap mix

I N D O O R

C O

I L

Liquid valve ON/OFF

TEV

FlowCond FlowCond

CondFanOvld CondFanOvld

CondFan ON/OFF

OUTDOOR COIL OUTDOOR COIL

FanCond 0 / 10 V

Liquid valve ON/OFF

antifreeze in cooling

AI_Condenser AI_Condenser

circuit n. 1 circuit n. 2

RevValve RevValve

chiller

compressor compressor

Cn Cn

HP HPLP LP

TEV

I N D O O R

C O

chiller

not used in heating

Tout Evaporator1 Tout Evaporator2

Heater1 Ovld

Heater ON/OFF

antifreeze in cooling

auxiliary in heating

CondFan ON/OFF

chiller

Danfoss

80G194.01

FanCond 0 / 10 V

chiller

CompOvld CompOvld

Comp ON/OFF Comp ON/OFF

InverterComp 0 / 10 V

PumpEvap ON/OFF

PumpEvapOvld

Defrost

Heat / Cool

GeneralOvld

GeneralAlarm

ON/OFF

Set2

Tout

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Water / Water

Water / Water chiller, 1 circuit

FlowCond

PumpCond ON/OFF

PumpCond Ovld

Danfoss

80G195.01

GeneralOvld

GeneralAlarm

FlowEvap

ON/OFF

Set2

Tout

Heater1 Ovld

Heater ON/OFF

PumpEvap ON/OFF

PumpEvap Ovld

Liquid valve ON/OFF

TEV

C O N D E N S E R

AI_Condenser1

compressor

HP LP

CompOvld

Comp ON/OFF

InverterComp 0 / 10 V

V A P O R A T O R

Tout Evaporator1

TinEvaporator1

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Water / Water

Water / Water chiller, 2 circuits, 1 evaporator, 1 condenser

C O N D

AI_Condenser

FlowCond

circuit n. 1 circuit n. 2

compressor compressor

Cn Cn

HP HPLP LP

TEV

E N S E R

E V A

P O

R A

T O

Liquid valve ON/OFF

Tout Evaporator1

Heater Ovld

Heater ON/OFF

FlowEvap

GeneralOvld

GeneralAlarm

ON/OFF

Set2

Tout

Danfoss

80G196.01

CompOvld CompOvld

Comp ON/OFF Comp ON/OFF

InverterComp 0 / 10 V

PumpCond ON/OFF

PumpCond Ovld

PumpEvap ON/OFF

PumpEvap Ovld

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Water / Water

Water / Water chiller, 2 circuits, 2 evaporators, 2 condensers

Liquid valve ON/OFF Liquid valve ON/OFF

Tout Evap Mix

C O N D E N S E R

AI_Condenser AI_Condenser

circuit n. 1 circuit n. 2

compressor compressor

Cn Cn

HP HPLP LP

CompOvld CompOvld

Comp ON/OFF Comp ON/OFF

InverterComp 0 / 10 V

TEV TEV

Tout Evap 1 Tout Evap 2

E V A P

R A T

Heater Ovld

Heater ON/OFF

Heater Ovld

Heater ON/OFF

FlowEvap

FlowCond

E V A P

R A T

Danfoss

C O N D E N S E R

80G197.01

PumpCond ON/OFF

PumpCond Ovld

PumpEvap ON/OFF

PumpEvap Ovld

GeneralOvld

GeneralAlarm

ON/OFF

Set2

Tout

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Heat Pump

Water / Water heat pump, 2 circuits, 2 evaporators, 2 condensers, gas change-over

antifreeze in heating not used in cooling

FlowEvap

Liquid valve ON/OFF Liquid valve ON/OFF

ToutCo ToutCo

O U

T D O O

C O

AI_Condenser

circuit n. 1 circuit n. 2

chiller

CompOvld

Comp ON/OFF

InverterComp 0 / 10 V

RevValve RevValve

compressor

TEV TEV

chiller

Tout Evap 1 Tout Evap 2

I N D

O O R

C O

I L

ToutEvap Mix

TinEvap

FlowCond

I N D O O

C O

AI_Condenser

chiller

compressor

CompOvld

Comp ON/OFF

chiller

O U

T D O O R

C O

Danfoss

80G198.01

PumpCond ON/OFF

PumpCond Ovld

PumpEvap ON/OFF

PumpEvap Ovld

GeneralOvld

GeneralAlarm

ON/OFF

Set2

Tout

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Heat Pump

Water / Water heat pump, 2 circuits, 2 evaporators, 2 condensers, water change-over

regulating in heating not used in cooling

ToutCo

C O N D E N S E R

outdoor

Liquid valve ON/OFF Liquid valve ON/OFF

TEV TEV

AI_Condenser AI_Condenser

circuit n. 1 circuit n. 2

compressor

CompOvld

Comp ON/OFF

InverterComp 0 / 10 V

Tout Evap 1 Tout Evap 2

E V A P O R A

T O R

indoor

RevValve

FlowCond

FlowEvap

ToutEvap Mix

TinEvap

E V A P O R A T O R

compressor

CompOvld

Comp ON/OFF

Danfoss

80G199.01

C O N D E N S E R

PumpCond ON/OFF

PumpCond Ovld

outdoor

indoor

RevValve

PumpEvap ON/OFF

PumpEvap Ovld

GeneralOvld

GeneralAlarm

ON/OFF

Set2

Tout

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Air / Air

Air / Air unit, 1 circuit

FanCond ON/OFF

FanCond 0 / 10 V

FlowCond

FanCondOvld

CONDENSER

AI_Condenser

compressor

HP LP

CompOvld

Comp ON/OFF

InverterComp 0 / 10 V

Air / Air unit, 2 circuits, 2 evaporators, 2 condensers

LiqValve ON/OFF

TEV

E V A

P O R A

T O R

GeneralOvld

GeneralAlarm

ON/OFF

Set2

Tout

HeaterOvld

Heater ON / OFF

Tout Evaporator 1TinEvaporator

FlowEvaporator

FanEvapOvld

Danfoss

80G1200.01

FlowCond FlowCond

FanCondOvld FanCondOvld

FanCond ON/OFF

CONDENSER

AI_Condenser AI_Condenser

InverterComp 0 / 10 V InverterComp 0 / 10 V

FanCond 0 / 10 V

LiqValve ON/OFF LiqValve ON/OFF

TEV TEV

EVAPORATOR EVAPORATOR

compressor compressor

Cn Cn

HP HPLP LP

CompOvld CompOvld

Comp ON/OFF Comp ON/OFF

Tout Evaporator Mix

Heater Ovld

Heater ON / OFF

Tin Evaporator

GeneralOvld

GeneralAlarm

ON/OFF

Set2

Tout

Heater Ovld

Heater ON / OFF

FanCond ON/OFF

CONDENSER

FanCond 0 / 10 V

Danfoss

80G1201.01

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Heat Pump

Air / Air heat pump, 2 circuits, 2 evaporators, 2 condensers

FlowCond FlowCond

FanCondOvld FanCondOvld

FanCond ON/OFF

CONDENSER

AI_Condenser AI_Condenser

FanCond 0 / 10 V

LiqValve ON/OFF

TEV TEV

EVAPORATOR EVAPORATOR

RevValve RevValve

chiller

compressor compressor

HP HPLP LP

chiller

Cn Cn

Tout Evaporator Mix

Heater Ovld

Heater ON / OFF

Tin Evaporator

GeneralOvld

GeneralAlarm

ON/OFF

Set2

Tout

Heater Ovld

Heater ON / OFF

LiqValve ON/OFF

FanCond ON/OFF

chiller

CONDENSER

chiller

FanCond 0 / 10 V

Danfoss

80G1202.01

CompOvld CompOvld

Comp ON/OFF Comp ON/OFF

InverterComp 0 / 10 V InverterComp 0 / 10 V

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Status variables

The following variable are available through Modbus, they are the states of the software. The variables which can work as command are set as R/W variable

Software status

Parameter: A01, …, A19, C01, …, C04, E01, …, E08

A01- Main command

(R/W)

A02-Alarm notiﬁcation (R)

A03-Pump (R)

A04-Fun (R)

A05-Heaters (R)

A06-Remote ON-OFF (R) 0= OFF: the digital input ONO_ON/OFF is in OFF

A07-Defrost status (R) 0= OFF

A08-Request power

(R)

A09-Actual power (R)

A10-Hours Counter Saving (R/W)

A11-Actual control probe (R) This is the probe used for the regulation of the compressors

A12-Actual setpoint (R) This is the real setpoint used for the regulation of the compressors

A13-Status System(R) 0= Oﬀ chiller

A14-Cooling-Heating(R) 0= Cool

C01-C04

Compressor x Pow(R)

E01-E08

Compressor x (R)

0: no meaning, the software reads and sets to zero this variable each loop 1: writing 1, the buzzer stops 2: writing 2, the alarms are reset 3: writing 3, the default parameters are restored 4: writing 4, the parameter y01-System On Oﬀ is changed 7: writing 7, the alarm history are reset 8: writing 8, heat/cool mode is changed

0: means that there are not alarms 1: means that there are alarm or warning active 2: means that buzzer is working

0= Oﬀ 1= ON

0= Oﬀ 1= ON: at least one fan is switched on

0= Oﬀ 1= ON: at least one heater is switched on

1= ON: the digital input ONO_ON/OFF is in ON

1= ON: the defrost is performed

It's in % It’s the power request for the compressors

It's in % It’s the power available in the moment; it depends on alarms, temporization, etc.

Writing 1 all the counters are stored in persistent memory Note: the hour counters are usually stored every 20 minutes

Note: the setpoint also considers compensations

1= On chiller

1= Heat

It's in % The screw compressor power is

0= Compressor is switched OFF 1= Compressor is waiting to switch ON 3= Compressor is waiting to switch OFF 4= Compressor is switched ON

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Software info

Parameter: F01, …, F07

The information about the software is available in the Service/ Software info menus or through Modbus.

F01-Application ID (R) This is the software identiﬁcation

F02-Major (R) Deﬁnes a major change in the software

F03-Minor (R) Deﬁnes a change in the .mcxs ﬁle (new parameters etc.)

F04-Patch (R) Deﬁnes a minor change into the logic

F05-Build (R) Changed whenever compiling takes place

F06-Control File Version (R) This is equal to the parameter Par-Parameters version

F07-Build option (R) This depends on the compilation of the software; diﬀerent conﬁgurations (functionalities, inputs and

outputs) will change a value

User Guide | Chiller and reversable chiller, reciprocating, scroll and screw compressors

Superheat info

Parameter: H01, …, H13

H01-Valve position v1 (R) It’s in %

H02-S2 Temperature v1 (R) It's in °C

It’s the evaporator outlet temperature

H03-Superheat v1 (R) It's in °C

H04-Superheat reference v1 (R) It's in °C

H05-Pe pressure v1 (R) It's in bar

This is the evaporator pressure

H06-Te temperature v1 (R) It's in °C

This is the evaporator’s temperature calculated from the evaporator’s pressure

H07-S4 temperature v1 (R) It's in °C

This is a sensor for measuring air temperature

H08-Main switch v1 (R) 0= Stop

1= Start

ADAP-KOOL®

Danfoss Chiller and reversable chiller User guide

Specifications and Main Features

Frequently Asked Questions

User Manual

User Interface

Parameters

Display

Parameter: dSA, dSb, dsc, Log, Par

Password

Parameter: L01, L02, L03

SetUp

Parameter: y01, y02, y03, y04, y05, y06, y08, y09

Serial setting

Parameter: Cid, Ser, bAU, COM

Evaporator

Parameter: H1, H2, H3, H4, H5, H12

Compressor

Parameter: H6, H7

Condenser

Parameter: H9, H10, H11

Heat Pump

Parameter: H40, H41, H42

Maintenance

Parameter: H43

Network settings

Parameter: n01,…n17

Parameter: rEG, rET, rT1, rT2, o30, Er1

Main Setpoint

Parameter: SC1, SCL, SCH, SH1, SHL, SHH, SRE

Economic Setpoint

Parameter: SdS, SdM, SdC, SdH, SdO

Setpoint compensation in based on the outside temperature

Parameter: CC1, CC2, CC3, CC4, CH2, CH3, CH4

Parameter: CrC1, rH1, Rin, rC2, rC3

Parameter: ddC, ddH, dd1, dd2, dd3, dd4, dd5, dd6, dd7, dd8

Parameter: DOn, Ain, Dos, DOd

Parameter: BUZ, Adl, AOF

Parameter: AFr, AF1, AF2, AF3

Parameter: AIS, AID, Air, AI1, AI2, AI3, AIT, AIo

Parameter: OPR, OdP, GdP

Circuit high temperature alarm

Parameter: HTs, HTd

Parameter: AHE, AHS, AHd, Alr, AL1, AL2, ALE, ALS, ALd, LPt, AVO, VCt, SHS, SHb

Parameter: Ats, Atd

Parameter: AbS, Abd

Parameter: ACM, ACS, ACd

Parameter: TMx, THo, TLo, HPE, HPo, HPh, LPE, LPo, LPh, PPt, PPp, HFo

Parameter: SHh, AHI, Ahi, AHd

Parameter: OTm, OTi, OTd

Parameter: C01, C02, CSO, CSb, T1, T2,T3, T4, C07, C08, T5, T6, T21, T22, T24, T24, T25, T26, T27, T28, T29

Parameter: Sty, Sti, SSt, Stm, Sdd

Economizer

Parameter: E01, EO2, EO3, EO4

Liquid injection

Parameter: T41, T42, T43, T44, T45

Parameter: C04, C05, C06, C08

Parameter: CT0, CT1, CT2, CT3, CT4, CT5, CT6, CT7

Parameter: Pd1, Pd2, Pd3, Pd4

Maximum compressor running hours

Parameter: C50

Parameter: IV0, IV1, IV2, IV3, IV4, IV5

Parameter: CT1, CT2, CT3, CT4, CT5, CT6, CT7, CT8

Heaters

Parameter: HE1, HE2, HE3, HE4, HE5, HE6, HE7

Parameter: P01, P02, P03, P04

Parameter: ERT, ECS, ECd, ECi, EHS, EHd, EHi, EDB, EI1, EI2, EI3

Fan for the internal coil

Parameter: P21, P22, P50

Parameter: FrA, Fr1, Fr2, Fr3, Fr4, Fr5, Fr6, Fr7, Fr8, Fr9, FI1, FI2, FI3

Parameter: EF1, EF2

Parameter: F01

Parameter: F02, F03, FC, FCD, FCI, FCd, FHS, FHD, FHI, FHd

Parameter: F31, F32, F33, F34, F35, F36, F37, F24, F25

Parameter: SS1, SS2, SS3, SS4

Parameter: F10, F11, F12, F13, F14, F20, F21, F22, F23

Parameter: Bp0, Bp1

Parameter: WFs, WFd

Parameter: rE2, rE1, rE3, rE4

Parameter: d01, d02, d03, d04, d05, d06, d07, d09, d10, d11, d12, d13, d14, d15, d16, d20, d22, d23, d25, d26

Parameter: HRs, HRm, HRc, HRn, HRt, HRo