ID 985/E LX
13/13
Eliwell & Controlli s.r.l.
Via dell'Industria, 15 Zona Industriale Paludi
32010 Pieve d'Alpago (BL) ITALY
Tel39 0437 986111
Fac39 0437 989066
Internet http://www.eliwell.it
Technical Customer Support:
Email: [email protected]
Tel39 0437 986300
Invensys Controls Europe
Part of the Invensys Group
3/2005 eng
cod. 9IS43080
1 2 3 4 5 6 7 8 9
10 11
ECH 985 - 12 V
12 13 14 15 16 17 18 19
A
(A)
(C)
(B)
(D)
Supply
Pb2
Pb1
Pb3
D.I.2
D.I.1
TERMINALS
1 - 2
Probe input 1 (thermostat control)
1 - 3
Probe input 2 (1st evaporator)
1 - 4
Probe input 3 (display or 2nd evaporator see par. H43)
5 - 6
Digital input 2
5 - 7
Digital input 1
8 - 9
Link (powered; 8=-, 9=+)
10 - 11
Power supply
12 - 13
N.O. relay output (A) see H22 (defrosting default)
12 - 14
N.C. relay output (A) see H22 (defrosting default)
15 - 16
N.O. relay output (B) see H21 (compressor default)
15 - 17
N.O. relay output (C) see H23 (fan default)
18 - 19
N.O. relay output (D) see H24 (condensing fan default)
A
TTL input for Copy Card and connection to Televis
Wiring Diagram
LAL
AFd
HAL
AFd
set+ LAL
AFd
Off
set+HAL
AFd
set
1
2
Max/Min. Alarm Diagram (minimum
and maximum temperature)
The maximum temperature alarm back swing occurs when the probe temperature is:
(1) lower than or equal to HAL - AFd
if Att=Ab(solute)
(2) lower than or equal to + HAL- AFd
if Att=rE(lative)
The minimum temperature alarm back swing occurs when the probe temperature is:
(1) higher than or equal to LAL + AFd
if Att=Ab(solute)
(2) greater than or equal to set + LAL + AFd
if Att=rE(lative)
* (set -|LAL|+AFd)
The maximum temperature alarm occurs
when the probe temperature is:
(1) higher than or equal to HAL if
Att=Ab(solute)
(2) higher than or equal to Set + HAL if
Att=rEl(ative)
• if Att=Abs(olute) HAL must be with a
sign;
• if Att=rEL(ative) HAL must be only
positive.
The minimum temperature alarm occurs
when the probe temperature is:
(1) lower than or equal to LAL if
Att=Ab(solute)
(2) lower than or equal to Set + LAL if
Att=rEl(ative)
• if Att=Abs(olute) LAL must be with a
sign;
• if Att=rEL(ative) LAL must be only pos-
itive.
*NOTE: if Att=rEL(ative) LAL must be negative: therefore set point+LAL<set point because
set+(-|LAL|)=set-|LAL|
DISCLAIMER
This document is the exclusive property of Eliwell &
Controlli S.r.L. and cannot be reproduced and circulat-
ed unless expressly authorized by Eliwell & Controlli
S.r.L.. Although Eliwell & Controlli S.r.L. has taken all
possible measures to guarantee the accuracy of this
document, it declines any responsibility for any dam-
age arising out of its use.
The same applies to any person or company involved
in preparing and writing this manual. Eliwell & Controlli
S.r.L. reserves the right to make any changes or
improvements without prior notice and at any time.
RESPONSIBILITY AND
RESIDUAL RISKS
Eliwell & Controlli S.r.L. shall not be liable for any dam-
ages deriving from:
• installation/use other than that prescribed and, in
particular, which does not comply with the safety stan-
dards specified in the regulations and/or those given
herein;
• use on boards which do not guarantee adequate
protection against electric shock, water or dust when
assembled;
• use on boards which allow dangerous parts to be
accessed without the use of tools;
• tampering with and/or alteration of the product;
• installation/use on boards that do not comply with
the standards and regulations in force.
