background image

EWWP045~06 ECB1~3MUW

Packaged water-cooled water chillers

4PW30041-1A

Operation manual

8

Resetting warnings

During normal operation, the display of the controller may start
flashing, alternately showing the inlet water temperature and the
following warning code:

n1

: indicates that the compressor1 requires maintenance: the

total running hours of the compressor1 (direct parameter 

c9

)

has exceeded the setting of the timer threshold for
maintenance warning (user parameter 

cb

).

n2

: indicates that the compressor2 requires maintenance: the

total running hours of the compressor2 (direct parameter 

ca

)

has exceeded the setting of the timer threshold for
maintenance warning (user parameter 

cb

).

To reset the maintenance warning 

n1

 or 

n2

, proceed as follows:

1

Enter the list of direct parameters by pressing the 

R

  key for

approximately 5 seconds.

The parameter code 

r1

 appears on the display.

2

Select parameter code 

c9

 or 

ca

 using the 

A

 and/or 

Z

 key.

3

Press the 

R

 key to switch to the parameter value.

4

Press the 

A

  and 

Z

  keys simultaneously for approximately

5 seconds.

The timer's value becomes 

0

5

Press the 

R

 key to return to parameter code 

c9

 or 

ca

.

6

Press the 

E

 key to return to normal operation.

Advanced features of the digital controller

This chapter gives an overview of the direct parameters and user
parameters provided by the controller. In the following chapter, you
will learn how you can set up and configure the unit using these
parameters.

Overview of the direct parameters

The list of direct parameters is accessible by pressing the 

R

 key for

approximately 5 seconds.

When scrolling through the list of direct parameters using the 

A

 and/

or 

Z

 key, the parameters appear in the following order:

r1

: to define the cooling temperature setpoint,

r2

: to define the cooling temperature difference,

r3

: to define the heating temperature setpoint,

r4

: to define the heating temperature difference,

r6

: to check the evaporator outlet water temperature,

r8

: when cooling mode is active: inlet water temperature of the

condenser,
when heating mode is active: inlet water temperature of the
evaporator,

c9

: to check the total running hours of the compressor1,

ca

: to check the total running hours of the compressor2,

cv

: to check the total running hours of the pump.

Overview of the user parameters

The list of user parameters is only accessible by means of the user
password. When scrolling through the list of parameters using the 

A

and/or 

Z

 key, you see the direct parameters and user parameters.

The user parameters appear in the following order:

:d

: to define the measurement unit (°C or °F),

c7

: to define the time delay between the pump startup and the

compressor startup,

c8

: to define the time delay between the unit shutdown and the

pump shutdown,

cb

: to define the time threshold for maintenance warning,

p4

: to disable the buzzer or to define the activation period of the

buzzer in case of an alarm,

h6

:  to activate or to deactivate the remote cool/heat control,

h7

: to activate or de-activate the remote on/off control,

h9

: to lock or unlock the controller keyboard,

ha

: to define the unit's serial address,

h8

,

hb

,

c6

: not used.

Tasks carried out using direct parameters

Entering the list of direct parameters

1

Press the 

R

 key for approximately 5 seconds.

The controller enters the list of direct parameters, displaying
parameter code 

r1

.

Defining the cooling temperature difference

To  control the cooling load, the unit is equipped with a two-step
thermostat.  The thermostat's "cooling temperature difference" can
be modified by means of direct parameter 

r2

.

The default, limit and step values are: 

Default value

3

.

0

°C

Limit values

0

.

3

 to 

19

.

9

°C

Step value

0

.

1

°C

To define the cooling temperature difference, proceed as follows:

1

Enter the list of direct parameters.

2

Press the 

A

 key once.

Direct parameter code 

r2

 appears on the display.

3

Press the 

R

 key to switch to the parameter value.

4

Select the appropriate setting using the 

A

 and/or 

Z

 key.

5

Press the 

R

 key to switch to the list of parameter codes.

6

To adjust or to consult other direct parameters before saving the
modifications, select another direct parameter using the 

A

 and/

or 

Z

 key and then repeat from instruction 3 onwards.

NOTE

Do not forget to carry out the required maintenance
activities after resetting the timers.

Besides resetting timer 

c9

  (running hours of the

compressor 1)  and 

ca

  (running hours of the

compressor 2), it is also possible to reset timer 

cv

which defines the total running hours of the pump. To
do this, consult the timer's value (refer to paragraph

"Consulting actual operational information" on page 7

)

and press the 

A

  and 

Z

  keys simultaneously for

approximately 5 seconds while the timer's value is
displayed. The timer's value becomes 

0

.  Then

successively press the 

R

 key and the 

E

 key to return

to normal operation.

12

15

°

C

13.5

 compressor

 inlet water temperature
 of evaporator

 ON

 ON

 OFF

 OFF

 compressor2

 compressor1

Summary of Contents for EWWP045KAW1M

Page 1: ...OPERATION MANUAL EWWP045KAW1M EWWP055KAW1M EWWP065KAW1M ECB1MUW ECB2MUW ECB3MUW Packaged water cooled water chillers...

Page 2: ...arting up the unit for the first time make sure that it has been properly installed It is therefore necessary to carefully read the installation manual supplied with the unit and the recommendations l...

Page 3: ...nning current A 10 4 13 1 15 0 10 4 10 4 13 1 13 1 13 1 15 15 10 4 13 1 10 4 13 1 13 1 13 1 15 13 1 15 15 27 11 23 26 500 500 500 2 3 1 4 20 17 12 13 24 21 18 25 16 22 19 28 28 28 8 5 6 9 7 10 15 14 1...

Page 4: ...denser removes small particles from the refrigerant to prevent blockage of the tubes Expansion valve The liquid refrigerant coming from the condenser enters the evaporator via an expansion valve The e...

Page 5: ...rough the water heat exchanger an interlock contact S11L of e g a flow switch must be installed in the start up circuit of the unit Internal wiring Parts table Refer to the internal wiring diagram sup...

Page 6: ...ommendations Before switching on the unit read following recommendations 1 When the complete installation and all necessary settings have been carried out close all front panels of the unit 2 The serv...

Page 7: ...ter a few minutes consult the actual operational information available in the list of direct parameters Also refer to the chapter Troubleshooting on page 19 Switching the unit off To switch the unit o...

Page 8: ...he parameter codes 5 To consult other actual operational information repeat from instruction 2 onwards 6 To return to normal operation press the E key or wait approximately 40 seconds In the first cas...

Page 9: ...s of the user password When scrolling through the list of parameters using the A and or Z key you see the direct parameters and user parameters The user parameters appear in the following order d to d...

Page 10: ...g on the setting of user parameter d all temperature values are displayed in C or in F The conversion formulas from C to F and vice versa are T C T F 32 1 8 T F T C x 1 8 32 If user parameter d is set...

Page 11: ...ars on the display Enabling or disabling the buzzer When an alarm is detected the buzzer is activated for the period defined by user parameter p4 The default limit and step values for the activation p...

Page 12: ...arameter code h9 using the A and or Z key 3 Press the R key to switch to the parameter value 4 Select the appropriate setting using the A and or Z key 5 Press the R key to return to the list of parame...

Page 13: ...and an initialization cycle is started Once all the timers have reached zero the unit starts up When a remote ON OFF switch is configured the following table applies 2 When the unit is started up for...

Page 14: ...ture of condenser setpoint 2 In double thermostat operation two setpoints are reserved for inlet control of the evaporator and two others are reserved for inlet control of the condenser INLSETP 1 E in...

Page 15: ...information i e the number of times a unit safety or a circuit safety occurred and the unit status at the moment of shutdown can be checked by means of the history menu To consult actual operational...

Page 16: ...SOR TIMERS COMPR STARTED 00s BC COMPRESSOR TIMERS C11 GRD 000s AR 000s C12 GRD 000s AR 000s C21 GRD 000s AR 000s BW COMPRESSOR TIMERS C22 GRD 000s AR 000s C31 GRD 000s AR 000s C32 GRD 000s AR 000s BX...

Page 17: ...SETTINGS screen of the user settings menu The default limit and step values for the thermostat parameters are Defining the lead lag mode The lead lag mode determines which module starts up first in ca...

Page 18: ...ow through the evaporator stops after the flowstart timer has reached zero If the water flow has not restarted during the countdown the unit will shut down PUMPLEAD PUMPLEAD refer to the pump control...

Page 19: ...l setpoint switch setpoint 1 or setpoint 2 REM ON OFF indicates the status of the remote on off switch CAP LIM1 2 3 indicates the status of the enable disable capacity limitation switch es The locked...

Page 20: ...ivated The ON LED is broken Contact your local dealer The unit is in bypass mode Check the bypass remote contact POSSIBLE CAUSES CORRECTIVE ACTION One of the following safety devices is activated Comp...

Page 21: ...ter filters Check if the mesh width is 1 mm maximum Disposal requirements Dismantling of the unit treatment of the refrigerant oil and any other parts should be done in accordance with the relevant lo...

Page 22: ...t control default 32 48Hp 4 step thermostat control default 32 48Hp 6 step thermostat control default 52 72Hp 6 step thermostat control default 52 72Hp 0 1 2 a b Stepnumber Setpoint Temperature 0 1 2...

Page 23: ...group settings of groups G1 G2 G3 G4 and H work similar as following example settings for group 1 MARCH MON TUE WED THU FRI SAT SUN 1 G1 2 G1 3 G2 4 G1 5 G1 6 G3 7 G3 8 G1 9 G1 10 G2 11 G1 12 G1 13 G...

Page 24: ...HAS STOPPED OUTE1 07 0 C OUTE3 OUTE2 07 0 C 07 0 C e UNIT HISTORY 003 0AE FLOW HAS STOPPED C11 OFF SAF C21 C12 OFF SAF OFF SAF e UNIT HISTORY 003 0AE FLOW HAS STOPPED C22 OFF SAF C32 C31 OFF OFF e UN...

Page 25: ...NOTES NOTES...

Page 26: ...Zandvoordestraat 300 B 8400 Oostende Belgium 4PW30041 1A...

Reviews: