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4.2.4 - Service configuration
4.2.4.1 - Service1 configuration table from Service Tool
The Network Service tool allows to view and modify the service configuration table SERVICE1. Unit shall be
stopped and under CCN Operating Type control.
TABLE NAME: SERVICE1 PIC TABLE TYPE : 13H, instance 1
DESCRIPTION
STATUS
DEFAULT
UNITS
POINT
1
Cooler Fluid Type
1/2/3
1
1
-
flui_typ
2
Head Pressure Diff Timer
10 to 120
2
90
sec
head_tim
3
Head Pressure Diff
3.8 to 22
3
5
^C
head_dif
4
Prop PID Gain Varifan/Wv
-20.0 to 20.0
4
1.0
-
hd_pg
5
Int PID Gain Varifan/Wv
-5.0 to 5.0
4
1.0
-
hd_ig
6
Deri PID Gain Varifan/Wv
-20.0 to 20.0
4
1.0
-
hd_dg
7
Cir A Superheat Setpoint
8.3 to 22
5
11
^C
dsh_sp_a
8
Cir B Superheat Setpoint
8.3 to 22
5
11
^C
dsh_sp_b
9
Cir A Cooler Pinch Setpt
0.5 to 2.6
6
1.0
^C
pinc_p_a
10
Cir B Cooler Pinch Setpt
0.5 to 2.6
6
1.0
^C
pinc_p_b
11
Maximum Condensing Temp
48.8 to 71.1
7
68
°C
mct_sp
12
Max Condensing Temp Diff
5.5 to 11
7
6.7
^C
mct_diff
13
Maximum Current Setpoint
50 to 85
8
80
%
curr_max
14
Maximum Current Diff
5 to 20
8
10
%
curr_dif
15
Close Capacity Ctrl Sel
Dsable/Enable
9
Dsable
-
cls_ctrl
16
Auto Z Multiplier Setpt
4 to 6
10
6
-
zm_spt
17
Maximum Z Multiplier
1.0 to 6.0
11
6.0
-
hc_zm
18
Entering Fluid Control
Yes/No
12
No
-
ewt_opt
Note: this table canl be downloadable at any time. However, modified value shall not be used by tasks until the
unit is in off state . This shall not apply to the Varifan/water valves gains that shall be modified at any time and
used immediately by the head pressure control tasks even if the unit is in operation.
1. >
1 = Water
2 = Brine
3 = Low Brine
Warning
: This decision affects the freeze protection threshold.
w
water: 1.1°C
w
brine & low brine: coldest setpoint - 4.4°C
2.
Used to set fan cycling. Decreasing this value will increase fan cycling. This timer can be reduced since the
unit is fitted with an important number of fan stages, as to increase the condensing control accuracy. But in
certain cases, notably on units with few fan stages, at too small value can causes superheat hunting
problems.
3.
Used to set fan cycling. Default value is 5 ^C, 11.1^C or higher value are recommanded if unit has varifan.
This value can be increased on units with few fan stages to avoid superheat hunting problems.
©
C
ARRIER
S
.
A
NOT
TO
BE
DISCLOSED
TO
PERSONS
OUTSIDE
CARRIER
ORGANIZATION
CARRIER SA
USER'S GUIDE FOR
30GX&HX PRO_DIALOG 4 V.2
ECG - UG - 02 - 02
Rev: Original
Page: 25 /98
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