Eliwell EWPlus 961 - User Manual

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Reduced SET / Economy LED

Permanently on: Energy Saving active

Flashing: Reduced SET active

Quick flashing: access to level2 parameters

Off: otherwise

Fans LED

Permanently on: fans active

Off: otherwise

Compressor LED

Permanently on: compressor active

Flashing: a delay, a protection or a

locked start-up

Off: otherwise

Aux LED

Permanently on: Aux output active

Flashing: Deep Cooling cycle active

Off: Aux output not active

Defrost LED

Permanently on: defrost active

Flashing: manual or D.I. activation

Off: otherwise

HEAT mode LED

Permanently on: compressor in HEAT mode

Off: otherwise

(only EWPlus 961)

°C LED

Permanently on: °C setting (dro = 0)

Off: otherwise

NOTE:

If the instrument is set in the COOL mode, in order to use

it in the HEAT mode it is necessary to reprogramme the

instrument by using the properly programmed Copycard.

The same procedure should be followed to pass from the

HEAT mode to the COOL mode.

°F LED

Permanently on: °F setting (dro = 1)

Off: otherwise

Alarm LED

Permanently on: alarm active

Flashing: alarm acknowledged

Off: otherwise

NOT USED

(only EWPlus 961)

EWPlus 961/971/974

Electronic controllers for refrigeration units

NOTE:

When switched on, the device performs a Lamp Test; the

display and LEDs will flash for several seconds to check that

they all function correctly.

USER INTERFACE

Press and release

• Scroll menu items

• Increases values

Press for at least 5 sec

• Activates the Manual Defrost function

DOWN

Press and release

• Scroll menu items

• Decrease values

Press for at least 5 sec

• Function can be configured by the user

((see parameter H32)

STAND-BY (ESC)

Press and release

• Returns to the previous menu level

• Confirms parameter value

Press for at least 5 sec

• Attiva la funzione Stand-by (OFF)

(quando non sono all’interno dei menu)

SET (ENTER)

Press and release

• Displays alarms (if active)

• Opens Machine Status menu

Press for at least 5 sec

• Opens Programming menu

• Confirm commands

KEYs

MOUNTING - DIMENSIONS

The device is designed for panel mounting. Drill a 29x71 mm hole and insert the instrument; secure it with the special brackets

provided. Do not install the instrument in damp and/or dirty places; in fact, it is suitable for use in places with ordinary or normal levels

of pollution. Keep the area around the instrument cooling slots adequately ventilated.

74 mm

32 mm

29 mm

71 mm

70 mm

59 mm

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Installation Manual92 pages

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Eliwell EWPlus 961 Specifications

General

Model	EWPlus 961
Input Type	NTC, PTC, Pt100, TC J, TC K, 0-10V, 0/4-20mA
Digital Inputs	Up to 2
Type	Controller
Temperature Range (NTC)	-50 ÷ 110°C
Temperature Range (PTC)	-50 ÷ 150°C
Operating Temperature	-10°C to +55°C
Accuracy	±0.5% FS
Resolution	0.1°C
Serial Communication	RS485
Control Type	PID
Humidity	20% to 90% RH (non-condensing)