Start-Up, Operation, and Maintenance Instructions
Start-Up, Operation, and Maintenance Instructions
Start-Up, Operation, and Maintenance Instructions
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Table 2 — CVC/ICVC Display Data (cont)<br />
EXAMPLE 19 — SETUP2 DISPLAY SCREEN<br />
To access this display from the CVC/ICVC default screen:<br />
1. Press MENU .<br />
2. Press SERVICE .<br />
3. Scroll down to highlight EQUIPMENT SERVICE .<br />
4. Press SELECT .<br />
5. Scroll down to highlight SETUP2 .<br />
6. Press SELECT .<br />
DESCRIPTION<br />
Capacity Control<br />
STATUS UNITS POINT DEFAULT<br />
Proportional Inc B<strong>and</strong> 2-10 gv_inc 6.5<br />
Proportional DEC B<strong>and</strong> 2-10 gv_dec 6.0<br />
Proportional ECW B<strong>and</strong> 1-3 gw_ecw 2<br />
Guide Vane Travel Limit<br />
Diffuser Control<br />
30-100 % gv_lim 80<br />
Diffuser Option 0-1 DSABLE/ENABLE diff_opt DSABLE<br />
Guide Vane 25% Load Pt 0-78 % gv_25 25<br />
Diffuser 25% Load Point 0-100 % df_25 0<br />
Guide Vane 50% Load Pt 0-78 % gv_50 50<br />
Diffuser 50% Load Point 0-100 % df_50 0<br />
Guide Vane 75% Load Pt 0-78 % gv_75 75<br />
Diffuser 75% Load Point 0-100 % df_75 0<br />
Diffuser Full Span mA<br />
VFD Speed Control<br />
15-22 mA diff_ma 18<br />
VFD Option 0/1 DSABLE/ENABLE vfd_opt DSABLE<br />
VFD Gain 0.1-1.5 vfd_gain 0.75<br />
VFD Increase Step 1-5 % vfd_step 2<br />
VFD Minimum Speed 65-100 % vfd_min 70<br />
VFD Maximum Speed 90-100 % vfd_max 100<br />
VFD Current Limit 0-99999 Amps vfdlim_i 250<br />
NOTE: No variables are available for CCN read or write operation; forcing shall not be supported on service screens.<br />
EXAMPLE 20 — LEADLAG DISPLAY SCREEN<br />
To access this display from the CVC/ICVC default screen:<br />
1. Press MENU .<br />
2. Press SERVICE .<br />
3. Scroll down to highlight EQUIPMENT SERVICE .<br />
4. Press SELECT .<br />
5. Scroll down to highlight LEADLAG .<br />
6. Press SELECT<br />
.<br />
DESCRIPTION STATUS UNITS POINT DEFAULT<br />
Lead Lag Control<br />
LEAD/LAG: Configuration 0-3 leadlag 0<br />
DSABLE=0, Lead=1<br />
LAG=2, STANDBY=3<br />
Load Balance Option 0/1 DSABLE/ENABLE load/bal DSABLE<br />
Common Sensor Option 0/1 DSABLE/ENABLE commsens DSABLE<br />
LAG % Capacity 25-75 % lag_per 50<br />
LAG Address 1-236 lag_add 92<br />
LAG START Timer 2-60 MIN lagstart 10<br />
LAG STOP Timer 2-60 MIN lagstop 10<br />
PRESTART FAULT Timer 2-30 MIN preft 5<br />
STANDBY Chiller Option 0/1 DSABLE/ENABLE stndopt DSABLE<br />
STANDBY % Capacity 25-75 % stnd_per 50<br />
STANDBY Address 1-236 stnd_add 93<br />
NOTE: No variables are available for CCN read or write operation.<br />
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