Carrier SmartVu control User Manual

SRDC-UG-2-14-000
REVISION
DATE
PAGE
19 Series Carrier®
SmartVu
TM
–
Controls IOM
2.3
Dec 4, 2020
68 OF 168
68
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 safeties are within the limits.
PRESTART ALERTCONDITION
State
Number
Alarm or
Alert
STARTS IN 12 HOURS >= 8
100
Alert
OIL SUMP TEMP <= 140F AND OIL SUMP TEMP <= EVAP_SAT +
50F
101
Alert
CONDENSER PRESSURE >= COND PRESS OVERRIDE - 20 PSI
102
Alert
Number of recycle restart in the last 4 hours is greater than 5
103
Alert
3
"LOCKOUT
"
Lockout in Controls Test is active
OFF
4mA
4
"RECYCLE
"
Recycle shutdown completed on
low load in effect; non-fault
condition
ON
12mA
5
"TRIPOUT"
Shutdown completed due to alarm
fault condition.
OFF
8mA
6
"TIMEOUT"
Start-to-start or stop-to-start timer is
actively counting down; non-fault
condition
ON
12mA
7
"PRESTAR
T"
Prestart check is active
ON
12mA
8
"STARTUP
"
Normal Startup in progress
ON
12mA
9
"AUTORST
"
Auto Rapid pending in progress
ON
12mA
10
"RAMPING
"
Ramp loading in progress
ON
20mA
11
"RUNNING
"
Normal running mode, no override
and not in demand
ON
20mA
12
"OVERRID
E"
Running with Override active
ON
20mA
13
"DEMAND"
Running with Demand Limit Active;
ON
20mA
14
"SHUTDO
WN"
Shutdown compressor in progress
ON
12mA
15
“FREECOO
L”
Free cooling in progress
OFF
4mA
16
“CONDFLS
H”
Condenser Flush in progress
OFF
4mA

Carrier SmartVu control Specifications

General

Brand	Carrier
Model	SmartVu control
Category	Control Panel
Language	English