Carrier XRV Spécifications Page 82
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- Table des matières
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
82
Transfer Refrigerant from Pumpout Storage Tank to Chiller
1. Equalize refrigerant pressure.
a. Turn on chiller water pumps and monitor chiller
pressures.
b. Close pumpout and storage tank valves 2, 4, 5, and
10, and close refrigerant charging valve 7; open
chiller isolation valve 11 and any other chiller
isolation valves, if present.
c. Open pumpout and storage tank valves 3 and 6;
open chiller valves 1a and 1b.
d. Gradually crack open valve 5 to increase chiller
pressure to 35 psig (241 kPa). Slowly feed refriger-
ant to prevent freeze-up.
e. Open valve 5 fully after the chiller pressure rises
above the freezing point of the refrigerant. Let the
storage tank and chiller pressure equalize. Open
refrigerant charging valve 7 and storage tank
charging valve 10 to let liquid refrigerant drain into
the chiller.
2. Transfer remaining refrigerant.
a. Close valve 5 and open valve 4. Turn off the
pumpout condenser water, and turn on the
pumpout compressor in manual mode to push
liquid refrigerant out of the storage tank. Monitor
the storage tank level until the tank is empty.
b. Close refrigerant charging valves 7 and 10.
c. Turn off the pumpout compressor.
d. Turn off the chiller water pumps.
e. Close valves 3 and 4.
f. Open valves 2 and 5.
g. Turn on pumpout condenser water.
h. Run the pumpout compressor in manual mode until
the storage tank pressure reaches 5 psig (34 kPa),
18 in. Hg vacuum (41 kPa absolute).
i. Turn off the pumpout compressor.
j. Close valves 1a, 1b, 2, 5, and 6.
k. Turn off pumpout condenser water.
Transfer the Refrigerant from Chiller to Pumpout Storage
Tank
1. Equalize refrigerant pressure.
a. Valve positions:
b. Slowly open valve 5 and refrigerant charging
valves 7 and 10 to allow liquid refrigerant to drain
by gravity into the storage tank.
2. Transfer the remaining liquid.
a. Turn off pumpout condenser water. Place valves in
the following positions:
b. Run the pumpout compressor in automatic mode
until vacuum switch is satisfied and compressor
stops. Close valves 7 and 10.
c. Turn off the pumpout compressor.
3. Remove any remaining refrigerant.
a. Turn on chiller water pumps.
b. Turn on pumpout condenser water.
c. Place valves in the following positions:
d. Run the pumpout compressor until the chiller pres-
sure reaches 35 psig (241 kPa); then, shut off the
pumpout compressor. Warm chiller condenser
water will boil off any entrapped liquid refrigerant
and chiller pressure will rise.
e. When chiller pressure rises to 40 psig (276 kPa),
turn on the pumpout compressor until the pressure
again reaches 35 psig (241 kPa), then, turn off the
pumpout compressor. Repeat this process until the
chiller pressure no longer rises; then, turn on the
pumpout compressor and pump out until the chiller
pressure reaches 18 in. Hg vacuum (41 kPa abso-
lute). This can be done in On or Automatic mode.
f. Close valves 1a, 1b, 3, 4, and 6.
g. Turn off the pumpout condenser water.
WARNING
During transfer of refrigerant into and out of the 19XRV
storage tank, carefully monitor the storage tank level gage.
Do not fill the tank more than 90% of capacity to allow for
refrigerant expansion. Overfilling may result in damage to
the tank and personal injury.
VALVE 1a1b2345671011
CONDITION C C C C C
VALVE 1a1b2345671011
CONDITION C C
COMPRESSOR
OIL
SEPARATOR
CONDENSER
LEAVING
WATER
ENTERING
WATER
VALVE
5
VALVE
4
VALVE
2
CONTROL
PA NE L
FRAME
ASSEMBLY
OIL
HEATER
VALVE
3
OIL FILL
FITTING
Fig. 44 — Pumpout Unit
a23-1546
VALVE 1a1b2345671011
CONDITION C C C C
VALVE 1a1b2345671011
CONDITION CCCCCCCCC
VALVE 1a1b2345671011
CONDITION C C C C C
VALVE 1a1b2345671011
CONDITION C C
VALVE 1a1b2345671011
CONDITION C C
VALVE 1a1b2345671011
CONDITION C C C C
VALVE 1a1b2345671011
CONDITION C C C C
VALVE 1a1b2345671011
CONDITION CCCCCCCCC
- EVERGREEN 1
- 50/60 Hz 1
- CONTENTS 2
- CONTENTS (cont) 3
- INTRODUCTION 4
- CHILLER FAMILIARIZATION 5
- (Fig. 1 and 2) 5
- REAR VIEW 7
- FRONT VIEW 7
- REFRIGERATION CYCLE 8
- MOTOR AND LUBRICATING OIL 8
- COOLING CYCLE 8
- STARTING EQUIPMENT 10
- OPTIONAL 11
- 442A AND 608A VFDs 12
- 900A AND 1200A VFDs 12
- CONTROLS 15
- Definitions 15
- Fig. 10 — Control Panel 17
- Fig. 11 — Power Panel 17
- 55.1 44.1 40.7 20
- 85.0 95.0 98.1 20
- 21.8 132.9 93 20
- Table 4 — ICVC Display Data 27
- 0.1-3.0 SP_HIGH 28
- 0.1-3.0 SP_HIGH 1.0 37
- PIC III System Functions 40
- ECW-10 sec 41
- Error, Gain = 1 41
- Error, Gain = 3 41
- START-UP/SHUTDOWN/ 57
- RECYCLE SEQUENCE (Fig. 27) 57
- Local Start-Up — 57
- Shaft Packing — 60
- LIQUID LINE 63
- Temperature (F) 64
- Temperature (C) 64
- • Surge/ HGBP Deadband = 1 69
- ΔT increase 70
- Delta Tsat 71
- ALARM CONTROL 72
- ALARM ROUTING 72
- LEGEND TO TABLES 16A-16J 91
- E. START-UP IN PROGRESS 92
- F. NORMAL RUN 93
- G. NORMAL RUN WITH OVERRIDES 93
- H. OUT-OF-RANGE SENSOR 94
- J. CHILLER ALERTS 99
- J. CHILLER ALERTS (cont) 100
- Control Modules 107
- Notes on Module Operation 107
- RECTIFIER LED 109
- INVERTER LED 109
- Table 30 — Motor Voltage Code 129
- COMPRESSOR, TRANSMISSION AREA 130
- LOW SPEED SHAFT THRUST DISK 131
- LEGEND FOR FIG. 53-58 133
- SEE NOTE 134
- HOT GAS BYPASS 135
- HOT GAS BYPASS OPTION FOR 136
- NOTE: MOTOR OVERLOAD IS 143
- FACTORY PRE-SET 143
- DO NOT ADJUST 143
- COMBINED I/O 144
- TB1 − LF2 146
- TB3 − LF2 146
- VFD (cont) 147
- LEGEND FOR FIG. 60 148
- NOTES FOR FIG. 60 149
- NOTE 3.6 150
- LEGEND FOR FIG. 61 152
- NOTES FOR FIG. 61 153
- 19XRV CHILLERS 154
- STATUS VPF_STAT 163
- APPENDIX B — LEAD/LAG WIRING 165
- 19XRV Weekly Maintenance Log 168
- 19XRV Maintenance Log 169
- 19XRV Seasonal Shutdown Log 170
- 10's 171
- 1's 171
- — The LEDs indicate if the 175
- Table G — Network Points List 176
- INITIAL START-UP CHECKLIST 179
- No 180
- *If yes, determine cause 180
- DRAWINGS) 180
- 0.1 to 3.0 184
- CCN LOCAL RESET MENU 190
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