Check Motor Rotation - Carrier 19XRV Start-Up, Operation And Maintenance Instructions Manual

Table 14 — Refrigerant (HFC-134a) Charge
REFRIGERANT
COOLER
CHARGE
CODE
lb kg
20 345 156
21 385 175
22 435 197
30 350 159
31 420 191
32 490 222
35 400 181
36 480 218
37 550 249
40 560 254
41 630 286
42 690 313
45 640 290
46 720 327
47 790 358
50 750 340
51 840 381
52 900 408
55 870 395
56 940 426
57 980 445
60 940 426
61 980 445
62 1020 463
65 1020 463
66 1060 481
67 1090 494
70 1220 553
71 1340 608
72 1440 653
75 1365 619
76 1505 683
77 1625 737
80 1500 680
81 1620 735
82 1730 785
85 1690 767
86 1820 826
87 1940 880
INITIAL START-UP
IMPORTANT: The Reliance VFD warranty will be void if
the VFD is not started by a technician who has completed
Reliance LiquiFlo™ Tier 1 Training and whose name is
registered with Reliance.
Before starting the chiller, verify:
Preparation —
1. Power is on to the VFD, oil pump relay, oil heater relay,
and the chiller control panel.
2. Cooling tower water is at proper level and at-or-below
design entering temperature.
3. Chiller is charged with refrigerant and all refrigerant and
oil valves are in their proper operating positions.
4. Oil is at the proper level in the reservoir sight glasses.
5. Oil reservoir temperature is above 140 F (60 C) or above
refrigerant temperature plus 50° F (28° C).
6. Valves in the evaporator and condenser water circuits are
open.
NOTE: If the pumps are not automatic, ensure water is
circulating properly.
Do not permit water or brine that is warmer than 110 F
(43 C) to flow through the cooler or condenser. Refrigerant
overpressure may discharge through the relief valves and
result in the loss of refrigerant charge, damaging the chiller.
7. Access the CONTROL TEST screen. Scroll down on the
TERMINATE LOCKOUT option. Press the SELECT (to
enable the chiller to start) and answer YES to reset unit to
operating mode. The chiller is locked out at the factory in
order to prevent accidental start-up.
REFRIGERANT
CONDENSER
CHARGE
CODE
lb kg
20 225 102
21 225 102
22 225 102
30 260 118
31 260 118
32 260 118
35 310 141
36 310 141
37 310 141
40 280 127
41 280 127
42 280 127
45 330 150
46 330 150
47 330 150
50 400 181
51 400 181
52 400 181
55 490 222
56 490 222
57 490 222
60 420 190
61 420 190
62 420 190
65 510 231
66 510 231
67 510 231
70 780 354
71 780 354
72 780 354
75 925 420
76 925 420
77 925 420
80 720 327
81 720 327
82 720 327
85 860 390
86 860 390
87 860 390

Check Motor Rotation

1. Engage the control power circuit breaker (CB2) located
inside the left hand side of the VFD enclosure.
2. Finally close the main motor disconnect (CB1) on the
front of the VFD enclosure.
3. The VFD checks for proper phase rotation as soon as
power is applied to the VFD and the PIC III controls
power up. The controls do not permit a start if the phase
rotation is not correct.
4. An alarm message will appear on the ICVC if the phase
rotation is incorrect. If this occurs, reverse any 2 of the 3
incoming power leads to the VFD and reapply power.
The motor is now ready for a rotation check.
5. After the default screen status message states 'Ready to
Start' press the
performs start-up checks.
6. When the VFD is energized and the motor begins to turn,
check for clockwise motor rotation. See Fig. 37.
Do not check motor rotation during coastdown. Rotation
may have reversed during equalization of vessel pressures.
Check Oil Pressure and Compressor Stop
1. When the motor is at full speed, note the OIL PRES-
SURE reading on the ICVC default screen. Normal
19XRV oil pressure readings are between 18 and 30 psid
(124 to 207 kPad). The oil pressure should be between 18
and 40 psid (124 to 276 kPad) on Frame 3 compressors
equipped with rolling element bearings.
2. Press the Stop button and listen for any unusual sounds
from the compressor as it coasts to a stop.
To Prevent Accidental Start-Up —
override setting may be entered to prevent accidental start-up
during service or whenever necessary. Access the MAINSTAT
screen and using the
highlight the CHILLER START/STOP parameter. Override the
current START value by pressing the
the softkey followed by the
STOP
word SUPVSR! displays on the ICVC indicating the override
is in place.
To restart the chiller, the STOP override setting must be
removed. Access the MAINSTAT screen and using
or softkeys highlight CHILLER START/STOP.
PREVIOUS
The 3 softkeys that appear represent 3 choices:
• — forces the chiller ON
START
• — forces the chiller OFF
STOP
• — puts the chiller under remote or schedule
RELEASE
control
To return the chiller to normal control, press the
softkey followed by the
RELEASE
more information, see Local Start-Up, page 53.
The default ICVC screen message line indicates which
command is in effect.
70
softkey. The PIC III control
LOCAL
A chiller STOP
or
NEXT PREVIOUS
softkey. Press
SELECT
softkey. The
ENTER
softkey. For
ENTER
softkeys,
NEXT