Specifications

31
Table 3 — ICVC Display Data (cont)
EXAMPLE 13 — LL_MAINT DISPLAY SCREEN
To access this display from the ICVC default screen:
1. Press .
2. Press .
3. Scroll down to highlight .
4. Press .
5. Scroll down to highlight
6. Press .
NOTES:
1. DISABLE, LEAD, LAG, STANDBY, INVALID
2. DISABLE, LEAD, LAG, STANDBY, RECOVERY, CONFIG
3. Reset, Off, Local, CCN
4. Timeout, Ready, Recycle, Prestart, Startup, Ramping, Running,
Demand, Override, Shutdown, Autorest, Pumpdown, Lockout,
Control Test
5. Stop, Start, Retain
6. All variables with CAPITAL LETTER point names are available
for CCN read operation; forcing shall not be supported on main-
tenance screens.
EXAMPLE 14A — SURGPREV DISPLAY SCREEN (Machines with Serial Numbers Prior to 1410Qxxxxx)
To access this display from the ICVC default screen:
1. Press .
2. Press .
3. Scroll down to highlight .
4. Press .
5. Scroll down to highlight .
6. Press .
NOTE: All variables with CAPITAL LETTER point names are available for CCN read operation; forcing shall not be supported on maintenance
screens.
DESCRIPTION STATUS UNITS POINT
LeadLag Control
LEADLAG: Configuration NOTE 1 leadlag
Current Mode NOTE 2 llmode
Load Balance Option 0/1 DSABLE/ENABLE loadbal
LAG START Time 2-60 MIN lagstart
LAG STOP Time 2-60 MIN lagstop
Prestart Fault Time 2-30 MIN preflt
Pulldown Time 2-30 MIN pulldown
Pulldown: Delta T / Min x.xx ^F pull_dt
Satisfied? 0/1 NO/YES pull_sat
LEAD CHILLER in Control 0/1 NO/YES leadctrl
LAG CHILLER: Mode NOTE 3 lagmode
Run Status NOTE 4 lagstat
Start/Stop NOTE 5 lag_s_s
Recovery Start Request 0/1 NO/YES lag_rec
STANDBY CHILLER: Mode NOTE 3 stdmode
Run Status NOTE 4 stdstat
Start/Stop NOTE 5 std_s_s
Recovery Start Request 0/1 NO/YES std_rec
Spare Temperature 1 –40-245 DEG F SPARE_T1
Spare Temperature 2 –40-245 DEG F SPARE_T2
MENU
SERVICE
CONTROL ALGORITHM STATUS
SELECT
LL_MAINT.
SELECT
DESCRIPTION STATUS UNITS POINT
Active Region 0-2 ACT_REG
Surge Prevention Active? 0/1 No/Yes SHG_ACT
Active Delta P 0-420 ^PSI DP_A
Surge Line Delta T 0.5-284.5 ^F DT_C
Active Delta T 0.5-9999.9 ^F DT_A
HGBP On Delta T 0.5-10.0 ^F HGBP_ON
HGBP Off Delta T 1.5-20.0 ^F HGBP_OFF
Guide Vane Delta –2.0-2.0 % GV_DELTA
Target Guide Vane Pos 0-100 % GV_OUT
Target VFD Speed 0-100 % VFD_TRG
Speed Change in Effect 0-5 SPD_CHG
VFD Speed Factor 0.000-1.000 VFD_SPD
Surge Counts 0-99 SC
Surge Protection Counts 0-4 SPC
Ramp Loading Active 0/1 No/Yes RAMP_ACT
VFD Rampdown Active 0/1 No/Yes VFD_RAMP
HGBP/VFD Active 0-2 HGBP_VFD
VFD Load Factor 0.00-1.20 VFD_RAT
Hot Gas Bypass Relay 0/1 Off/On HGBYPASS
Surge Limit/HGBP Option 0-2 HGBP_OPT
Override Inhibit Active 0/1 No/Yes VANE_INH
Override Decrease Active 0/1 No/Yes VANE_DEC
MENU
SERVICE
CONTROL ALGORITHM STATUS
SELECT
SURGPREV
SELECT