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Table 2 — CVC Display Data (cont)
EXAMPLE 18 — SETUP2 DISPLAY SCREEN
To access this display from the CVC default screen:
1. Press
MENU
.
2. Press SERVICE .
3. Scroll down to highlight EQUIPMENT SERVICE .
4. Press SELECT .
5. Scroll down to highlight SETUP2 .
DESCRIPTION
STATUS
UNITS
POINT
DEFAULT
Capacity Control
Proportional Inc Band
2-10
gv
inc
6.5
Proportional DEC Band
2-10
gv
dec
6.0
Proportional ECW Gain
1-3
gv
ecw
2.0
Guide Vane Travel Limit
30-100
%
gv
lim
80
Diffuser Control
Diffuser Option
0-1
DSABLE/ENABLE
diff
opt
DSABLE
Guide Vane 25% Load Pt
0-78
%
gv
25
25
Diffuser 25% Load
0-100
%
df
25
0
Guide Vane 50% Load Pt
0-78
%
gv
50
50
Diffuser 50% Load Pt
0-100
%
df
50
0
Guide Vane 75% Load Pt
0-78
%
gv
75
75
Diffuser 75% Load Pt
0-100
%
df
75
0
Diffuser Full Span mA
15-22
mA
diff
ma
18
VFD Speed Control
VFD Option
0/1
DSABLE/ENABLE
vfd
opt
DSABLE
VFD Gain
0.1-1.5
vfd
gain
0.75
VFD Increase Step
1-5
%
vfd
step
2
VFD Minimum Speed
65-100
%
vfd
min
70
VFD Maximum speed
90-110
%
vfd
max
100
NOTE: No variables are available for CCN read operation; forcing shall be supported on service screens.
EXAMPLE 19 − LEADLAG DISPLAY SCREEN
To access this display from the CVC default screen:
1. Press
MENU
.
2. Press SERVICE .
3. Scroll down to highlight EQUIPMENT SERVICE .
4. Press SELECT .
5. Scroll down to highlight LEADLAG .
DESCRIPTION
STATUS
UNITS
POINT
DEFAULT
Lead Lag Control
LEAD/LAG Configuration
0-3
leadlag
0
DSABLE=0, LEAD=1,
LAG=2, STANDBY=3
Load Balance Option
0/1
DSABLE/ENABLE
load/bal
DSABLE
Common Sensor Option
0/1
DSABLE/ENABLE
commsens
DSABLE
LAG Percent Capacity
25-75
%
lag
per
50
LAG Address
1-236
lag
add
92
LAG START Timer
2-60
MIN
lagstart
10
LAG STOP Timer
2-60
MIN
lagstop
10
PRESTART FAULT Timer
2-30
MIN
preflt
5
STANDBY Chiller Option
0/1
DSABLE/ENABLE
stndopt
DSABLE
STANDBY Percent Capacity
25-57
%
stnd
per
50
STANDBY Address
1-236
stnd
add
93
NOTE: No variables are available for CCN read or write operation.
30
Summary of Contents for HERMETIC CENTRIFUGAL LIQUID CHILLERS 19XR
Page 13: ...Fig 10 Control Panel Fig 11 Power Panel 13 ...
Page 47: ...Fig 25 19XR Leak Test Procedures 47 ...
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