Siemens PolyCool Superheat - CPS40 Manuel D'installation Et D'utilisation page 37

Picture Function Parameter
14 SAFETY Valve startup
3)
delay time
Valve startup
opening time
Valve startup
opening limit
Pressure sensor
alarm delay when
compressor ON
Low limit for
temperature
measurement
Minimum super-
heat ΔT
Control
algorithm
Siemens
Building Technologies
Code Adjustable
VD
VT
VO
PA
4)
TL
MI
1)
Can be parameterized only if external or internal capacity control
has been selected in the configuration mode.
2)
SD can be parameterized only if external capacity control has
been selected in the configuration mode.
SD = 1 means that 0 V / 4 mA corresponds to max. cooling ca-
pacity
SD = -1 means that 0 V / 4 mA corresponds to min. cooling ca-
pacity
3)
Operation safety control
4)
Once the actual temperature value is over this limit of TL, an
alarm will appear.
The firmware version V1.24B0048 (batch number S130513 or high-
er) includes a new control algorithm. In order to ensure backward
compatibility, please refer to the table below.
Parameter code old
ΔT XP
old
ΔT TN
old
ΔT D
old
MOP XP
old
MOP TN
old
3)
Recommendation for air coolers "dry" expansion.
4)
Recommendation for liquid coolers (for example shell-and-tube
heat exchangers).
Superheat - CPS40
Commissioning
Range/increment
0...60 s / 1s
0...30 s / 1s
0...50 % / 1 %
0...60 s / 1 s
-70...-40 °C / 1 °C
-94...-40°F / 1 °F
0...4 K / 0...7.2 °F
Parameter code new
ΔT XP * 1,25
old
ΔT TN
old
ΔT D
old
50 K / MOP XP
50 K / MOP XP
MOP TN
old
Settings Procedure
Default
0 s
1 s
0 %
5 s
-40 °C /
1 °C
-40 °F /
1 °F
2 K /
3.6 °F
1)
≤ 1
new
2)
≤ 0,75
new
37 / 120
CE1U3372xx
2018-11-09