Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53300028-01
Printed in U.S.A.
Form 30RB-3T
Pg 1
12-09
Replaces: 30RB-2T
Controls, Start-Up, Operation, Service
and Troubleshooting
CONTENTS
Page
SAFETY CONSIDERATIONS
. . . . . . . . . . . . . . . . . . . . . . . . .2
GENERAL
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Conventions Used in This Manual
. . . . . . . . . . . . . . . . . . .3
Basic Control Usage
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
• SCROLLING MARQUEE DISPLAY
• ACCESSORY NAVIGATOR™ DISPLAY MODULE
CONTROLS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-43
General
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Main Base Board (MBB)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Scroll Protection Module (SPM)
. . . . . . . . . . . . . . . . . . . . . .7
Electronic Expansion Valve (EXV) Board
. . . . . . . . . . . .8
Fan Boards
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Reverse Rotation Board
. . . . . . . . . . . . . . . . . . . . . . . . . . . .13
• DIAL SETTINGS
• PHASE REVERSAL PROTECTION
• PHASE LOSS AND UNDER-VOLTAGE
PROTECTION
Enable-Off-Remote Contact Switch
. . . . . . . . . . . . . . . . .13
Emergency On/Off Switch
. . . . . . . . . . . . . . . . . . . . . . . . . .13
Energy Management Module (EMM)
. . . . . . . . . . . . . . . .14
Energy Management Module
Heat Reclaim (EMM HR)
. . . . . . . . . . . . . . . . . . . . . . . . . .15
Local Equipment Network
. . . . . . . . . . . . . . . . . . . . . . . . . .16
Board Addresses
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Control Module Communication
. . . . . . . . . . . . . . . . . . . .16
• RED LED
• GREEN LED
• YELLOW LED
Carrier Comfort Network
®
(CCN) Interface
. . . . . . . . . .16
Configuration Options
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
• MINIMUM LOAD CONTROL
• RAMP LOADING
• MINUTES OFF TIME
Dual Chiller Control
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Capacity Control
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
• CAPACITY CONTROL OVERRIDES
Head Pressure Control
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
• LOW AMBIENT TEMPERATURE HEAD PRESSURE
CONTROL OPTION
• LOW AMBIENT TEMPERATURE HEAD PRESSURE
CONTROL OPERATING INSTRUCTIONS
Cooler Pump Control
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Machine Control Methods
. . . . . . . . . . . . . . . . . . . . . . . . . .32
• SWITCH CONTROL
• TIME SCHEDULE
• CCN CONTROL
• UNIT RUN STATUS
Cooling Set Point Selection
. . . . . . . . . . . . . . . . . . . . . . . .33
• SET POINT 1
• SET POINT 2
• 4 TO 20 mA INPUT
• DUAL SWITCH
• SET POINT OCCUPANCY
Temperature Reset
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Demand Limit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
• 2-STEP SWITCH CONTROLLED
Page
• EXTERNALLY POWERED (4 to 20 mA Controlled)
• CCN LOADSHED CONTROLLED
Remote Alarm and Alert Relays
. . . . . . . . . . . . . . . . . . . . 41
PRE-START-UP
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43,44
System Check
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
START-UP
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44,45
Actual Start-Up
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Operating Limitations
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
• TEMPERATURES
• VOLTAGE
• MINIMUM FLUID LOOP VOLUME
• FLOW RATE REQUIREMENTS
OPERATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45-49
Sequence of Operation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Dual Chiller Sequence of Operation
. . . . . . . . . . . . . . . . 45
Operating Modes
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Optional Heat Reclaim Module
. . . . . . . . . . . . . . . . . . . . . 49
SERVICE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49-57
Electronic Expansion Valve (EXV)
. . . . . . . . . . . . . . . . . . 49
• EXV TROUBLESHOOTING PROCEDURE
Cooler
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
• FREEZE PROTECTION
• LOW FLUID TEMPERATURE
• LOSS OF FLUID FLOW PROTECTION
• TUBE PLUGGING
• RETUBING
• TIGHTENING COOLER HEAD BOLTS
• CHILLED WATER FLOW SWITCH
RTPF Condenser Coil Maintenance and Cleaning
Recommendations
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
• REMOVE SURFACE LOADED FIBERS
• PERIODIC CLEAN WATER RINSE
• ROUTINE CLEANING OF COIL SURFACES
MCHX Condenser Coil Maintenance and Cleaning
Recommendations
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Condenser Fans
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Refrigerant Circuit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
• LEAK TESTING
• REFRIGERANT CHARGE
Safety Devices
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
• COMPRESSOR PROTECTION
• CRANKCASE HEATERS
Relief Devices
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
• HIGH-SIDE PROTECTION
• LOW-SIDE PROTECTION
Compressors
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
• COMPRESSOR REPLACEMENT
• OIL CHARGE
• SYSTEM BURNOUT CLEANUP PROCEDURE
MAINTENANCE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Recommended Maintenance Schedule
. . . . . . . . . . . . . 57
TROUBLESHOOTING
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 57-81
Alarms and Alerts
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
• DIAGNOSTIC ALARM CODES AND POSSIBLE
CAUSES
AQUASNAP
®
30RB060-390
Air-Cooled Liquid Chillers
Содержание AQUASNAP 30RBA315
Страница 77: ...77 Fig 37 Control Schematic 30RB060 080 a30 4619...
Страница 78: ...78 Fig 38 Control Schematic 30RB090 150 a30 4620...
Страница 79: ...79 Fig 39 Control Schematic 30RB160 190 a30 4622...
Страница 80: ...80 Fig 40 Control Schematic 30RB210 300 a30 4622...
Страница 81: ...81 Fig 41 Heat Reclaim Control Schematic a30 4622...