Carrier 19XR Spécifications Page 10
- Page / 136
- Table des matières
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
10
There is a display on the front of the Benshaw, Inc., solid-
state starters that is useful for troubleshooting and starter
checkout. The display indicates:
• voltage to the SCRs
• SCR control voltage
• power indication
• proper phasing for rotation
• start circuit energized
• over-temperature
• ground fault
• current unbalance
• run state
• software configuration
The starter is further explained in the Check Starter and
Troubleshooting Guide sections, pages 54 and 76.
Unit-Mounted Wye-Delta Starter (Optional) —
The 19XR chiller may be equipped with a wye-delta starter
mounted on the unit. This starter is used with low-voltage mo-
tors (under 600 v). It reduces the starting current inrush by con-
necting each phase of the motor windings into a wye configu-
ration. This occurs during the starting period when the motor is
accelerating up to speed. Once the motor is up to speed, the
starter automatically connects the phase windings into a delta
configuration. Starter control, monitoring, and motor protec-
tion is provided by Carrier’s Integrated Starter Module (ISM).
Unit-Mounted VFD (Optional) —
The 19XRV
unit will be equipped with a variable frequency drive motor
controller mounted on the unit. See Fig. 7 and 8. This VFD is
used with low voltage motors between 380 and 480 VAC. It re-
duces the starting current inrush by controlling the voltage and
frequency to the compressor motor. Once the motor has accel-
lerated to minimum speed the PIC II modulates the compressor
speed and guide vane position to control chilled water tempera-
ture. The VFD is further explained in the Controls section and
Troubleshooting Guide section, pages 10 and 76.
There is a separate display located on the unit-mounted
VFD. Operational parameters and fault codes are displayed rel-
ative to the drive. Refer to specific drive literature along with
troubleshooting sections. The display is also the interface for
entering specific chiller operational parameters. These parame-
ters have been preprogrammed at the factory. An adhesive
backed label on the inside of the drive has been provided for
verification of the specific job parameters. See Initial Start-Up
Checklist section for details.
CONTROLS
Definitions
ANALOG SIGNAL — An analog signal varies in proportion
to the monitored source. It quantifies values between operating
limits. (Example: A temperature sensor is an analog device be-
cause its resistance changes in proportion to the temperature,
generating many values.)
DISCRETE SIGNAL — A discrete signal is a 2-position rep-
resentation of the value of a monitored source. (Example: A
switch produces a discrete signal indicating whether a value is
above or below a set point or boundary by generating an on/off,
high/low, or open/closed signal.)
5
1
2
3
6
4
7
LEGEND
Fig. 5 — Solid-State Starter Box,
Internal View
1 —
RediStart™ MICRO Input/Output Card
2 —
Fuses 1-4 (Hidden, not depicted)
3 —
Circuit Breaker 2 (CB2): Machine Control and Heater Power
4 —
Circuit Breaker 3 (CB3): Oil Pump Power
5 —
RediStart MICRO Central Processing Unit Card (CPU)
6 —
RediStart MICRO Power Card (hidden, not depicted)
7 —
RediStart MICRO Bypass Card (hidden, not depicted)
Fig. 6 — Typical Starter External View
(Solid-State Starter Shown)
- 19XR,XRV 1
- 50/60 Hz 1
- CONTENTS 2
- CONTENTS (cont) 3
- INTRODUCTION 4
- REAR VIEW 6
- FRONT VIEW 6
- VFD COOLING CYCLE 8
- LUBRICATION CYCLE 8
- Summary — 8
- Details — 8
- Oil Reclaim System — 8
- STARTING EQUIPMENT 9
- CONTROLS 10
- Definitions 10
- General — 11
- PIC II System Components — 11
- TOP VIEW 12
- COMPRESSOR DETAIL 12
- Fig. 12 — Control Panel 14
- Fig. 13 — Power Panel 14
- 55.1 44.1 40.7 15
- 85.0 95.0 98.1 15
- 21.8 132.9 93 15
- Table 2 — CVC Display Data 22
- PIC II System Functions 33
- Safety Controls — 34
- Shunt Trip (Option) — 35
- Default Screen Freeze — 35
- Refrigerant Leak Detector — 37
- Kilowatt Output — 37
- Remote Reset of Alarms — 37
- Condenser Pump Control — 37
- Water/Brine Reset — 38
- Chiller) — 39
- Lead/Lag Control — 41
- Ice Build Control — 43
- Service Operation — 45
- START-UP/SHUTDOWN/ 46
- RECYCLE SEQUENCE (Fig. 26) 46
- Local Start-Up — 46
- Shutdown Sequence — 47
- Chilled Water Recycle Mode — 47
- Safety Shutdown — 47
- Leak Test Chiller — 50
- Standing Vacuum Test — 50
- Temperature (F) 52
- Temperature (C) 52
- Check Starter 54
- RediStart MICRO 57
- Perform a Control Test — 62
- High Altitude Locations — 63
- INITIAL START-UP 64
- Preparation — 64
- Check Motor Rotation 65
- Fig. 34 — Refrigeration Log 68
- Water Treatment — 75
- Check Pressure Transducers — 75
- TROUBLESHOOTING GUIDE 76
- Overview — 76
- Checking Display Messages — 76
- Control Test — 77
- LEGEND TO TABLES 11A-11J 77
- A. MANUAL STOP 78
- B. READY TO START 78
- C. IN RECYCLE SHUTDOWN 78
- E. START-UP IN PROGRESS 79
- F. NORMAL RUN 79
- G. NORMAL RUN WITH OVERRIDES 80
- H. OUT-OF-RANGE SENSOR ALARMS 80
- J. CHILLER ALERTS 83
- J. CHILLER ALERTS (cont) 84
- Control Modules 87
- Notes on Module Operation 87
- Solid-State Starters — 88
- INTEGRATED STARTER MODULE 89
- Physical Data — 90
- Table 15 — Compressor Weights 93
- Electrical Data 97
- Table 20 — Motor Voltage Code 97
- Compressor Assembly Torques 98
- VIEW B — HIGH SPEED SHAFT 99
- 19XR COMPRESSOR CLEARANCES 99
- "ON" 107
- "OFF" 107
- INDEX (cont) 119
- INITIAL START-UP CHECKLIST 123
- CCN LOCAL RESET MENU 135
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