Evco EC3140 User Manual download pdf

EC 3-140

ON-OFF digital module for compressor, evapo-

rator fans and defrost (for temperature-time)

management

Operating instructions

Release 1/98 of November the eighteenth 1998

Code EC 3-140 DOC E000

File 3140e.p65

IMPORTANT:

The use of this new instrument is easy; but for safety reasons, it is

important read these instructions carefully before the installation or

before the use and follow all additional informations.

It is very important keep these instructions with the instrument for future

consultations.

ENGLISH

GENERAL INFORMATIONS

WHAT IS THE USE

EC 3-140 is an ON-OFF digital module studied for refrigerating systems management through

the compressor, evaporator fans and defrost (for temperature-time) management; the instru-

ment was studied to be used with a power module from which it is also supplied.

In factory the instrument gets preset to accept at the measure inputs PTC/NTC probes used in

refrigeration field at the moment.

Some parameters permit to set the module to protect the compressor against overloads due to

several starts repeated in a short time, to manage the defrost according with ones require-

ments, to establish the evaporator fans output functioning, to signal working conditions out-

side the safety limits.

EC 3-140 is available in the 74 x 32 mm (2.91 x 1.25 in.) case and it is studied for panel

mounting with the equipped screw or spring brackets.

GETTING STARTED

INSTALLATION

EC 3-140 was studied for panel mounting, panel cutout 71 x 29 mm (2.79 x 1.14 in.), with the

equipped screw or spring brackets (the overall dimensions and the panel cutout are related in

Fig. 3, the fixing systems suggested by the builder are related respectively in Fig. 4 and in

Fig. 5).

ADDITIONAL INFORMATIONS

- the panel thickness must be included from 1 to 5 mm (0.04 to 0.19 in.)

- verify if the using conditions (ambient temperature, humidity, etc.) are within the

limits indicated by the builder (see the chapter TECHNICAL DATA)

- install the instrument in a location with a suitable ventilation, to avoid the inter-

nal overheating of the instrument

- do not install the instrument near surfaces that can to obstruct the air-grating

(carpets, covers, etc.), heating sources (radiators, hot air ducts, etc.), locations

subject to direct sunlight, rain, humidity, excessive dust, mechanical vibrations

or bumps, devices with strong magnetos (microwave ovens, big speakers, etc.)

- according with the safety norms, the protection against possible contacts with

electrical parts and parts protected with functional insulation only must be ensured

through a correct installation procedure of the instrument; all parts that ensure

the protection must be fixed so that they can not be removed if not with a tool

- if not differently specified at the time of order, the instrument will be equipped

with screw brackets.

ELECTRICAL CONNECTION

EC 3-140 is provided with one telephone connector for wired cable EC CC 502, EC CC 503,

EC CC 504, EC CC 505 or EC CC 510 (for the connection to the power module) and it is provided

with one five poles single line male connector (for the connection to the CLONE configurer/

cloner and RICS supervision systems), located on the instrument back panel (the connections

to derive are related in Fig. 6 and they are checkable on the polyester label stuck on the

instrument case).

ADDITIONAL INFORMATIONS

- if the instrument is brought from a cold to a warm location, the humidity may

condense inside the instrument; wait about an hour before supply the instrument

- do not try to repair the instrument; for the repairs apply to highly qualified staff

- if you have any questions or problems concerning the instrument please consult

Every Control (see the chapter BUILDER DATA).

Fig. 1

f3-140.wmf

USE

PRELIMINARY INFORMATIONS

After derived the connections related in Fig. 6, during the normal functioning the instrument

displays the temperature read by the cabinet probe.

Fig. 2

iu3190.wmf

If an alarm should be active the instrument displays the alarm code flashing and the buzzer

utters an intermittent beep as long as the cause that has given it does not disappear (see the

chapter SIGNALS AND ALARMS); pressure on the key T1 during an alarm permits to silence

the buzzer.

EC 3-140 is provided with one working setpoint and with some configuration parameters that

get stored in a non volatile memory and that permit to set the instrument according with ones

requirements (see the chapter CONFIGURABILITY).

The output K 1 is associated to the compressor and to the working setpoint, it remains acti-

vated continuously as long as the temperature read by the cabinet probe reaches the working

setpoint and when it rises above the working setpoint of the hysteresis value (differential) the

output gets reactivated, except during a defrost and a dripping.

The output K 2 is associated to the evaporator fans and it is forced to the status ON, except

during a dripping and except what established with the parameters of the family F.

Passed the defrost interval from the moment of the instrument start or from the moment in

which the instrument presents a request of a defrost cycle, if the conditions permit it (the

temperature read by the evaporator probe must be below the defrost stopping setpoint) the

instrument automatically presents the following request of a defrost cycle.

A defrost cycle provides three phases (defrost, dripping and evaporator fans stoppage) con-

nected in cascade since the end of one automatically determines the passage to the following

one.

The output K 3 is associated to the defrost and it remains continuously activated during the

defrost as long as the temperature read by the evaporator probe reaches the defrost stopping

setpoint when the defrost ends and the instrument automatically moves to the dripping; if the

instrument was set to manage defrost to resistances (electrical) during a defrost the output K 1

gets forced to the status OFF, if the instrument was set to manage hot gas defrost (reversal of

cycle) during a defrost the output K 1 remains continuously activated.

Passed the dripping length from the moment of the defrost end the instrument automatically

moves to the evaporator fans stoppage; during a dripping the outputs K 1 and K 2 get forced to

the status OFF.

Passed the evaporator fans stoppage length from the moment of the dripping end the defrost

cycle ends; during an evaporator fans stoppage the output K 2 activation gets disabled.

If the conditions permit it (the temperature read by the evaporator probe must be below the

defrost stopping setpoint) keeping pushed the key T2 for four seconds at least the instrument

presents a request of a defrost cycle.

WORKING SETPOINT SETTING (WORKING TEMPERATURE)

To modify the working setpoint value keep pushed the key T3 (the instrument displays the

actual value) and at the same time push and release over and over the key T1 or T2 as long as

the instrument displays the desired value (keeping pushed the key T1 or T2 the value gets

decreased or increased more quickly): after the modification release the key T3 last; during the

pressure of the key T3 the LED L1 flashes quickly to indicate that a working setpoint setting

procedure is running (to the release of the key T3 the instrument automatically turns out from

the working setpoint setting procedure).

ADDITIONAL INFORMATIONS

- for the whole period of a corrupted memory data alarm the access to the working

setpoint setting procedure is refused

- the working setpoint is programmable within the limits established with the

DIMENSIONAL DATA

OVERALL DIMENSIONS AND PANEL CUTOUT

The dimensions are expressed in millimetres and inches (third-scale drawing).

Fig. 3

ds3ve.wmf

INSTALLATION

WITH THE FIXING SYSTEMS SUGGESTED BY THE BUILDER

Panel mounting, with the equipped screw (Fig. 4) or spring brackets (Fig. 5) (third-scale drawing).

Fig. 4

ms3vv.wmf

Fig. 5

ms3vm.wmf

ELECTRICAL CONNECTION

CONNECTIONS TO DERIVE

Instance of typical application.

BUILDER DATA

EVERY CONTROL S.r.l.

Via Mezzaterra 6, 32036 Sedico Belluno ITALY

Phone 0039/0437852468 (a.r.) Fax 0039/043783648

Internet addresses

e-mail: [email protected]

http://www.everycontrol.it

TO BE CAREFUL

This publication exclusively belongs to EVERY CONTROL and shall not be reproduced and distributed if not expressly authorized by the same EVERY CONTROL.

EVERY CONTROL does not assume any responsibility in order to the characteristics, to the technical data and to the possible mistakes related herein or deriving from the use of the same.

EVERY CONTROL can not be considered responsible for damages caused from the inobservance of the additional informations.

EVERY CONTROL reserves the right to make any modification without prior notice and at any time without prejudice the basic functioning and safety characteristics.

Fig. 6

c3-140e.wmf

1 2

Summary of Contents

Page 1 - EC 3-140

EC 3-140ON-OFF digital module for compressor, evapo-rator fans and defrost (for temperature-time)managementOperating instructionsRelease 1/98 of Novem

Page 2 - HOW TO ORDER

parameters r1 and r2- the working setpoint value gets stored in a non volatile memory even if a lack ofpower supply happens.CONFIGURATION PARAMETERS S