Emerson Dixell XC645CX User Manual

1592001440 XC645CX GB r3.4 31.10.2017.docx XC645CX 44/54
Mess.
Errata
Corrige
CPr Circuit
conFiG Error
The kind of outputs are
not compatible with the 2
suction circuits
• Check parameters oA(i) , CtyP and
set CtyP different from Scr.
AO1 And AO2
SAME
Function
AoF and 2AoF have the
same setting
• Set AoF and 2AoF properly.
no Probe For
SH
One relay is set as hot
gas injection valve (oA2
or oA3 or oA4 = HGi), but
the probe to detected th
superheat is missed:
ASH9 = nP
• Set a probe to detect the superheat by
the parameter ASH9 = P3 or P4.
• If the hot gas injection valve is not
present, set oA2 or oA3 or oA4
different from HGi.
20.1.2 E01L, Electronic Pressure switch alarm, suction section
Parameters
ELP: Electronic pressure switch threshold: (-50°C÷SETC; -58°F÷SETC; PA04÷SETC);
Pressure / Temperature value at which all the compressors are switched off. It has to be set some
degrees above the mechanical low pressure switch value, in order to prevent mechanical low
pressure activation.
Actions
Electronic low pressure: every time the suction temperature/pressure is less than ELP value all
the compressors are switched off. The instrument restarts the standard operating mode when
pressure/ temperature increases.
20.1.3 E0H1, E0L1 Pressure switch alarm, suction and condensing
sections
Terminals
Low pressure switch input: 9-10, high pressure switch input: HP [25-26].
Parameters
iP05: Low pressure switch polarity: It establishes if the input is activated by closing (iP05=cL)
or by opening (iP05=oP) the terminals.
iP06: High pressure switch polarity: It establishes if the input is by activated by closing
(iP06=cL) or by opening (iP06=oP) the terminals.
Actions
Low pressure: every time the inputs are activated all the compressors are switched off. The
instrument restart the standard operating mode when the input is disabled. If there are PEn
activation in the PEi time, only manual resetting is allowed, by pressing the DOWN key for 3s or
by turning off and on the instrument.
High pressure: every time the inputs are activated all the compressors are switched off and fans
are switched on. The instrument restart the standard operating mode when the input is disabled.
If there are PnF activation in the PiF time, only manual resetting is allowed, by pressing the DOWN
key for 3s or by turning off and on the instrument.
20.1.4 EA1÷EA6: Compressors and fans safeties alarm.
Terminals
WARNING: THESE TERMINALS REQUIRE A FREE OF VOLTAGE CONNECTION.

Emerson Dixell XC645CX Specifications

General

Brand	Emerson
Model	Dixell XC645CX
Category	Controller
Language	English