Carrier 19XR,XRV Hermetic Centrifugal Liquid Chillers - Manual (Page 31)

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Table 2 — CVC/ICVC Display Data (cont)
EXAMPLE 19 — SETUP2 DISPLAY SCREEN
To access this display from the CVC/ICVC default screen:
1. Press .
2. Press .
3. Scroll down to highlight .
4. Press .
5. Scroll down to highlight
.
6. Press .
NOTE: No variables are available for CCN read or write operation; forcing shall not be supported on service screens.
EXAMPLE 20 — LEADLAG DISPLAY SCREEN
To access this display from the CVC/ICVC default screen:
1. Press .
2. Press .
3. Scroll down to highlight .
4. Press .
5. Scroll down to highlight .
6. Press .
NOTE: No variables are available for CCN read or write operation.
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 Band 1-3 gw_ecw 2
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 Point 0-100 % df_25 0
Guide Vane 50% Load Pt 0-78 % gv_50 50
Diffuser 50% Load Point 0-100 % df_50 0
Guide Vane 75% Load Pt 0-78 % gv_75 75
Diffuser 75% Load Point 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 90-100 % vfd_max 100
VFD Current Limit 0-99999 Amps vfdlim_i 250
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 % 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 preft 5
STANDBY Chiller Option 0/1 DSABLE/ENABLE stndopt DSABLE
STANDBY % Capacity 25-75 % stnd_per 50
STANDBY Address 1-236 stnd_add 93
MENU
SERVICE
EQUIPMENT SERVICE
SELECT
SETUP2
SELECT
MENU
SERVICE
EQUIPMENT SERVICE
SELECT
LEADLAG
SELECT