Carrier 30XA080-500 Controls, Start-Up, Operation, Service And Troubleshooting Instructions page 120

Air-cooled liquid chillers
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C. UNIT START-UP
I. All liquid line service v_dves are open.
2. Velil_ actuated ball valve (ABV) operation.
3. All suction service valves are open.
4. Economizer
service valves open.
5. Oil service v_dves open.
6. Leak check unit. Ix_cate, repair and report any refi'igerant leaks.
7. Voltage fit terminal block is within unit nmneplate range.
Check voltage imbalance:
A-B
A-C
B-C
Avelage voltage =
(A-B + A-C + B-C)/3
Maximum
deviation from average voltage = __
Voltage imbalance =
% (max. deviation / average voltage) X 100
Is voltage imbalance
less than 2%.
(DO NOT st_ut chiller if voltage imb_dance is greater than 2%.
Contact local utility for assistance.)
8. Veri_ coolerflow
rote
Pressure entering cooler
Pressure leaving cooler
Cooler pressure drop
Psig x 2.31 ft./psi =
Kpa x 0.334 m/psi =
Cooler flow rate
__
psig
__
psig
__
psig
ft of water
mm of water
__
gpm (l/s) (See Cooler Pressure Drop Curve)
Start and operate
machine
I. Complete colnponent
test utilizing Quick Test Mode (Service Test--)Quie)
2. Check refrigerant
and oil chm'ge. Record charge information.
3. Record compressor
and condenser
fan motor current.
4. Record operating data.
5. Provide operating
instructions
to owner's
personnel.
Circuit A
Circuit B
Refrigerant
Charge
Additional
chm'ge required
Oil Charge
Additional
charge required
[] Yes
[] No
[] Yes
[] No
[] Yes
[] No
[] Yes
[] No
[] Yes
[] No
[] Yes
[] No
[] Yes
[] No
[] Yes
[] No
Circuit C
Record
Software
Versions
MODE --
RUN STATUS
SUB-MODE
VERS
t
APPL
ITEM
t
DISPLAY
+
CSA-SR-
ITEM EXPANSION
(Press ENTER & ESCAPE
simultaneously
to obt_dn software versions)
CL-2
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