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Evco S.p.A. • Code 104F215E20 • page 1/8

EVF215

Digital controller for refrigerated cabinets, made up from user interface with capacitive touch keys
(integrated into the unit) and a control module

version 2.0

EN

ENGLISH

1

IMPORTANT

1.1

Important

Read these instructions carefully before installation and before use and follow all installation recommendations regarding installation and the electric connections. Keep the instructions with the instrument for future
consultation.

The instrument must be disposed of in compliance with the local Standards regarding the collection of electrical and electronic appliances.

2

INTRODUCTION

2.1

Introduction

EVF215 is a digital controller developed for the management of normal
or low temperature refrigerated cabinets. whose design and easy
cleaning cover an important role.
The instrument has:
• clock
• alarm buzzer
• 3 measurement inputs (cabinet probe, evaporator probe and

condenser probe) for NTC probes

• 2 digital inputs (door micro switch and multipurpose)
• 5 digital outputs (relays) for compressor management

(30 A @ 250 VAC), defrost and evaporator fan management, a fourth
and a fifth utility (cabinet light, demisting heater, auxiliary output,
alarm output, door heater, evaporator valve or condenser fan);
defrosting can be electric or using hot gas.

• TTL serial port with MODBUS communication protocol.
The models have “split” execution (user int control module).
The user interface is behind a methacrylate sheet and is made up from
a 4-digit custom display (with icon function) and 6 capacitive touch
keys (set, up, down, defrosting, cabinet light and on/stand-by); back
panel installation is envisioned, using double-sided adhesive tape, for
its complete mechanical and aesthetic integration into the cabinet.
The control module is in open frame board; installation is envisioned
on a flat surface with spacers.
Using the EVKEY programming key (to be ordered separately)
configuration parameters can be uploaded and downloaded.

Using a serial interface (to be ordered separately) it is also possible to
connect the controller to the Parameters Manager set-up software or
to the monitoring and supervision system of RICS plants (via TTL, with
MODBUS communication protocol).

3

DIMENSIONS AND INSTALLATION

3.1

User interface dimensions

The dimensions are expressed in mm (in); installation is envisioned behind the panel using double-sided adhesive tape.

3.2

Control module dimensions

The dimensions are expressed in mm (in); installation is envisioned on a flat surface using spacers.

3.3

Recommendations for installation

• make sure that the work conditions (temperature of use, humidity,

etc.) lie within the limits indicated in the technical data

• do not install the instrument in proximity of heat sources (heaters,

hot air pipes etc.) appliances with strong magnets (large diffusers
etc.), places subject to direct sunlight, rain, humidity, excessive dust,
mechanical vibrations or shocks

• any metal parts in proximity of the control module must be at a

distance such as not to compromise the safety distances

• make sure the display is perfectly adherent to the methacrylate
• in compliance with Safety Standards, the protection against any

contact with the electric parts must be ensured via correct installation
of the instrument. All parts that ensure protection must be fixed in a
way such that they cannot be removed without the aid of a tool.

4

USER INTERFACE

4.1

Preliminary considerations

The following functioning states exist:
• the “on” status (the instrument is powered and on: the regulators can

be on)

• the “stand-by” status (the instrument is powered but is switched off

software: the regulators are off, the possibility of switching the cabinet
light or auxiliary output on/off in manual mode depends on parameter
u2)

• the “off” status (the instrument is not powered).
Successively, the term “switch-on” means that the passage from the
stand-by status to the on status; the term “switch-off” means the passage
from the on status to the stand-by status.
When the instrument is powered it re-proposes the status in which it
found itself at the time when the power supply was disconnected.

4.2

Instrument switch-on/off in manual mode

• make sure that the keyboard is not locked and that no procedure is

in progress

• hold the   key down for 2 s: the on/stand-by LED switches-on/off.
The multipurpose input can also be used to switch the instrument on/
off in remote mode.

4.3

The display

If the instrument is on, during normal functioning the display will
show the temperature of the cabinet, except during defrosting, when
the instrument will display the temperature established with
parameter d6.
If the instrument is off, the display will be off.

4.4

Evaporator temperature display

• make sure that the keyboard is not locked and that no procedure is

in progress

• hold the   key down for 1 s: the display will show the first label

available

• press and release the   key or the   key to select “

Pb2

• press and release the   key.
To exit the procedure:
• press and release the   key or do not operate for 60 s
• press and release the   key or the   key until the display shows the

cabinet temperature or do not operate for 60 s.

Alternatively:
• press and release the   key.
If the evaporator probe is absent (parameter P3 = 0), the “

Pb2

” label

will not be displayed.

4.5

Condenser temperature display

• make sure that the keyboard is not locked and that no procedure is

in progress

• hold the   key down for 1 s: the display will show the first label

available

• press and release the   key or the   key to select “

Pb3

• press and release the   key.
To exit the procedure:
• press and release the   key or do not operate for 60 s
• press and release the   key or the   key until the display shows the

cabinet temperature or do not operate for 60 s.

Alternatively:
• press and release the   key.
If the condenser probe is absent (parameter P4 = 0), the “

Pb3

” label

will not be displayed.

4.6

Activation/deactivation of the Overcooling
function

• make sure that the keyboard is not locked, that no procedure is in

progress and defrosting is not in progress along with dripping or
evaporator fan standstill.

• hold the   key down for 4 s: the Overcooling LED will switch-on.

Содержание EVF215

Страница 1: ...module must be at a distance such as not to compromise the safety distances make sure the display is perfectly adherent to the methacrylate in compliance with Safety Standards the protection against any contact with the electric parts must be ensured via correct installation of the instrument All parts that ensure protection must be fixed in a way such that they cannot be removed without the aid o...

Страница 2: ...nctioning hours These operations cause the Loc label to be displayed for 1 s To unlock the keyboard press and hold the and key for 1 s the display will show UnL for 1 s 4 14 Silencing the buzzer make sure no procedure is in progress press a key the first time the key is pressed does not cause the associated effect If parameter u1 and or parameter u11 is set at 3 and parameter u4 is set at 1 pressi...

Страница 3: ...alarm output will be activated only if parameter u1 and or parameter u11 is set at 3 iSd Pressure switch alarm Solutions check the causes that brought about the activation of the input see parameters i5 i6 i7 i8 and i9 switch the instrument off and back on again or cut the power supply off Main consequences the regulators will be switched off the alarm output will be activated only if parameter u1...

Страница 4: ...ck the data related in the labels Main consequences the control module will keep working correctly ErL Error of communication user interface control module Solutions check the connection user interface control module Main consequences the control module will keep working correctly When the cause of the alarm disappears the instrument restores normal functioning except for the clock error rtc code ...

Страница 5: ...ance request is signalled 0 no function DEFROSTING if d8 0 1 or 2 defrosting interval 8 0 defrosting at intervals will never be activated if d8 3 maximum defrosting interval type of defrosting 0 ELECTRIC during defrosting the compressor will remain off and the defrosting output will be activated the evaporator fan activity will depend on parameter F2 1 WITH HOT GAS during defrosting the compressor...

Страница 6: ...tioning 0 off 1 on se also F13 F14 and i10 2 parallel to the compressor se also F9 F13 F14 and i10 3 depending on F1 16 4 off if the compressor is off depending on F1 if the compressor is on see also F9 16 5 depending on F6 see also F9 evaporator temperature over which the evaporator fan is switched off sonly if F0 3 or 4 see also F8 activity of the evaporator fan during defrosting and dripping 0 ...

Страница 7: ...ue from those used for the calculation of the relative average for the activation of defrosting only if d8 3 see also d17 number of door micro switch input activations such to cause the activation of defrosting 0 defrosting will never be activated due to the effect of door micro switch input activation minimum duration of door micro switch input activations such to cause the activation of defrosti...

Страница 8: ... always signalled when the power supply is restored 16 if parameter P3 is set at 0 the instrument will function as if parameter F0 is set at 2 17 the parameter is also modified by operating with the procedure given in paragraph 4 8 1 18 if parameter P4 is set at 0 the condenser fan will function in parallel to the compressor 19 the compressor is switched off after 10 s from activation of the input...

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