Field Set Up And Verification - Carrier AquaEdge 19XR Start-Up, Operation And Maintenance Instructions Manual

Field Set Up and Verification

IMPORTANT: Some parameters are specific to the chiller
configuration and will need to be verified prior to operation.
All command functions must be initiated from the HMI.
Use the HMI touch screen to confirm that the ISM values
match the chiller parameter labels and Chiller Builder design
data sheet. The ISM values can be located from MAIN MENU
CONFIGURATION MENU ISM CONFIGURATION.
LABEL LOCATIONS
Verify the following labels have been installed properly and
match the chiller requisition:
• Surge Parameters — Located inside the chiller control
panel.
• Chiller identification nameplate — Located on the right
side of the control panel. (See Fig. 18.)
A United Technologies Company
TM
REFRIGERATION MACHINE
MACHINE
COMP'R
COOLER
CONDENSER
ECON
STOR TANK
RATED TONS
RATED iKW
REFRIGERANT
R-
COMPRESSOR MOTOR DATA
V O L T S / P H A S E / H E R T Z
RL AMPS
OLT AMPS
MAX FUSE/CIRCUIT BKR
MIN. CIRCUIT AMPACITY
TEST PRESSURE
DESIGN PRESSURE
CLR.WATER PRESSURE
COND.WATER PRESSURE
CARRIER CHARLOTTE
9701 OLD STATESVILLE ROAD
CHARLOTTE, NORTH CAROLINA 28269
MADE IN USA
PRODUCTION YEAR: 20XX
SAFETY CODE CERTIFICATION
THIS UNIT IS DESIGNED,CONSTRUCTED,
AND TESTED IN CONFORMANCE WITH
ANSI/ASHRAE 15 (LATEST REVISION),
SAFETY CODE FOR MECHANICAL
REFRIGERATION.
THE COMPRESSOR MOTOR CONTROLLER
AND OVERLOAD PROTECTION MUST BE
IN ACCORDANCE WITH CARRIER
SPECIFICATION Z-415.
CHILLER ID NAMEPLATE — CONSTANT SPEED CHILLER
Fig. 18 — Machine Identification Nameplate
STARTER/DRIVE PROTECTION AND OTHER INCOM-
ING WIRING
1. Verify that the branch disconnects or other local discon-
nects are open and properly tagged out.
2. Verify that the branch circuit protection and AC input wir-
ing to the starter are in accordance with NEC/CEC
(National Electrical Code/California Energy Commission)
and all other local codes.
3. Verify that the fuses are per the field wiring diagram.
4. Verify that the incoming source does not exceed the SCCR
(short circuit current rating) of the equipment marking.
5. Verify the power lugs in the starter/VFD and branch pro-
tection are properly secured. Inspect the ground cable and
ensure it is properly connected at the branch and to the
ground lug in the starter.
6. Verify the conduit for the power wiring in securely con-
nected to the starter flanged cover and runs continuously
to the branch protection.
7. Ensure the control and signal wires connected to the chiller
controller or the starter/VFD are in separate conduits.
MODEL NUMBER
SERIAL NO.
LBS. KGS.
CHARGED
A C
LR AMPS Y-
LR AMPS D-
PSI KPA
PSI KPA
PSI KPA
PSI KPA
a19-1881
19XR05009801
FINE TUNING VPF (VARIABLE PRIMARY FLOW)
SURGE PREVENTION
Figures 19-22 show how the parameters defined below will af-
fect the configured surge line. The menu can be found under
MAIN MENU  CONFIGURATION MENU  SURGE
CORRECTION CONFIG.
NOTE: Before tuning surge prevention, check for VFD speed
limitation or capacity overrides. If the source of low capacity is
found in one of these places, do not proceed with an attempt to
tune the Surge Prevention configurations.
If capacity is not reached
and
1. ACTUAL GUIDE VANE POSITION < GUIDE VANE
TRAVEL RANGE
and
2. SURGE PREVENTION ACTIVE = YES (can be identi-
fied in MAIN MENU  MAINTENANCE MENU 
SURGE CORRECTION)
and
3. PERCENT LINE CURRENT < 100%
then the surge line is probably too conservative.
Note the following parameters from HMI when maximum AC-
TUAL LINE CURRENT is achieved:
• EVAPORATOR REFRIGERANT TEMP
• EVAPORATOR PRESSURE
• CONDENSER REFRIG TEMP
• CONDENSER PRESSURE
• ACTUAL GUIDE VANE POSITION
• ACTUAL LINE CURRENT
The ACTIVE DELTA TSAT and the CALC REF DELTA
TSAT can be monitored on the MAINTENANCE MENU 
SURGE CORRECTION screen. When ACTUAL DELTA
TSAT exceeds CALC REF DELTA TSAT + ENVELOPE
LINE OFFSET surge prevention will occur.
If ACTUAL GUIDE VANE POSITION is less than 30%, then
increase SURGE DELTA TSMIN in steps of 2ºF (1.2ºC) until
one of the three conditions listed above no longer applies. Do
not change SURGE DELTA TSMAX.
If ACTUAL GUIDE VANE POSITION is greater than 60%, then
increase SURGE DELTA TSMAX in steps of 2ºF (1.2ºC) until
cooling capacity is reached or one of conditions listed above no
longer applies. Do not change SURGE/HGBP DELTA TSMIN.
If ACTUAL GUIDE VANE POSITION is more than 30%
AND less than 60%, then:
1. Increase SURGE DELTA TSMIN in steps of 2ºF (1.2ºC).
2. Increase SURGE DELTA TSMAX in steps of 2ºF (1.2ºC).
3. Repeat Steps 1 and 2 until one of the conditions listed
above no longer applies.
NOTE: DELTA TSMIN should seldom need to be increased more
than 10 degrees above the selection program value. Likewise,
DELTA TSMAX rarely requires more than a 2ºF (1.2ºC) increase.
If surge is encountered then the controls surge prevention algo-
rithm surge line is probably too optimistic or high. Note fol-
lowing parameters from HMI at surge:
• EVAPORATOR REFRIGERANT TEMP
• EVAPORATOR PRESSURE
• CONDENSER REFRIG TEMP
• CONDENSER PRESSURE
• ACTUAL GUIDE VANE POSITION
• AVERAGE LINE CURRENT
22