Chiller Start-Up Sequence; Prestart Check - Carrier SmartVu Control Manual

3 "LOCKOUT
"
4 "RECYCLE
"
5 "TRIPOUT" Shutdown completed due to alarm
6 "TIMEOUT" Start-to-start or stop-to-start timer is
7 "PRESTAR
T"
8 "STARTUP
"
9 "AUTORST
"
10 "RAMPING
"
11 "RUNNING
"
12 "OVERRID
E"
13 "DEMAND"
14 "SHUTDO
WN"
"FREECOO
15
L"
"CONDFLS
16
H"

5.3. Chiller Start-up Sequence

5.3.1. Prestart Check

Once start-up begins, the controller performs a series of pre-start tests to verify that all pre-start alerts
and saf eties are within the limits.
PRESTART ALERTCONDITION
STARTS IN 12 HOURS >= 8
OIL SUMP TEMP <= 140F AND OIL SUMP TEMP <= EVAP_SAT +
50F
CONDENSER PRESSURE >= COND PRESS OVERRIDE - 20 PSI
Number of recycle restart in the last 4 hours is greater than 5
SRDC-UG-2-14-000
19 Series Carrier®
TM
SmartVu
Controls IOM
Lockout in Controls Test is active
Recycle shutdown completed on
low load in effect; non-fault
condition
f ault condition.
actively counting down; non-fault
condition
Prestart check is active
Normal Startup in progress
Auto Rapid pending in progress
Ramp loading in progress
Normal running mode, no override
and not in demand
Running with Override active
Running with Demand Limit Active;
Shutdown compressor in progress
Free cooling in progress
Condenser Flush in progress
REVISION
–
2.3
OFF
ON
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
OFF
OFF
DATE PAGE
Dec 4, 2020 68 OF 168
4mA
12mA
8mA
12mA
12mA
12mA
12mA
20mA
20mA
20mA
20mA
12mA
4mA
4mA
State Alarm or
Number Alert
100
101
102
103
Alert
Alert
Alert
Alert
68