dixell XC660D User Manual

1592001850 XC660D GB r3.4 04.09.2017.docx XC660D 20/55
17. List of parameters
17.1 Plant dimensioning and type of regulation.
The XC660D is pre-set to drive a rack with 3 compressors and 3 fans.
oA1 (term. 1-2), oA2 (term. 3-4), oA3 (term. 5-6), oA4 (term. 7-8), oA5 (term. 9-10), oA6 (term.
11-12), relay 1, 2, 3, 4, 5, 6 configuration: by means of these parameters the plant can be
dimensioned according to the number and type of compressors and/or fans and the number of
steps for each one.
Each relay according to the configuration of the oA(i), where (i) = 1, 2, 3, 4, 5, 6 parameter can
work as:
- Not used: oA(i) = nu
- Compressor circuit1: oA(i) = cPr1,
- Compressor circuit2: oA(i) = cPr2,
- Step: oA(i) i = StP
- Inverter compressor for circuit 1: oA(i) = inC1
- Inverter compressor for circuit 2: oA(i) = inC2
- Fan: oA(i) = FAn
- Fan with inverter/ECI fan: oA(i) = InF
- Injection of cooling liquid: oA(i) = Lin
- Alarm: oA(i) = ALr
- Flood protection function: oA(i) = Liq
- Valve for hot gas injection in case of low superheat: oA(i) = HGi
NOTE: also the “dGS”, “6dG”, “dGst” values are present. These values must not be used.
COMPRESSORS CONFIGURATION
According to the oA1, oA2, oA3, oA4, oA5, oA6 configuration, 2 kinds of plant can be defined:
Rack with compressors only: all the oAi different from FAn
Rack with compressors and fans: both FAn and CPr are used for oAi.
NOTE: CONFIGURATION OF COMPRESSOR WITH UNLOADERS (STEPS): the output of
compressor has to be set before the output for unloaders (steps).
ES. Compressor with 1 unloader: oA1 = cPr, oA2= StP.
If compressor with different capacities are used (CtyP=dPo), all the oAi must to be configured as
cPr (compressor) otherwise the configuration alarm “CStP” will be activated.
If compressors with different capacities are used (CtyP=dPo), all the oAi must to be configured
as cPr (compressor) otherwise the configuration alarm “CStP” will be activated.
If an oAi set as step without any previous oAi set as cPr the configuration alarm “CStP”
will be activated.
PLANT CONFIGURATION EXAMPLES:
Plant with 3 compressors 3
fans default configuration
with PP11, PP30 pressure
transducers:
oA1 = CPr1,
oA2 = CPr1,
oA3 = CPr1,
oA4 = FAn,
oA5 = FAn,

dixell XC660D Specifications

General

Brand	dixell
Model	XC660D
Category	Controller
Language	English