Baltimore Aircoil Company TrilliumSeries TRF Manual

TrilliumSeries™
Adiabatic Cooler - TRF
OPERATION & MAINTENANCE MANUAL

TrilliumSeries™ Adiabatic Cooler - TRF Operation & Maintenance Manual –Table of Contents Page | 2
TrilliumSeries™ Adiabatic Cooler - TRF
OPERATION &MAINTENANCE MANUAL
Contents
1. Recommended Maintenance Intervals.......................................................................................................................................................... 6
2. Parts Map...................................................................................................................................................................................................... 7
Recommended Spare Parts ....................................................................................................................................................................... 8
3. Warnings and Cautions................................................................................................................................................................................. 9
Safety Precautions ..................................................................................................................................................................................... 9
Equipment Precautions............................................................................................................................................................................ 10
4. General Information .................................................................................................................................................................................... 11
Adiabatic Cooling ..................................................................................................................................................................................... 11
Methods of Operation............................................................................................................................................................................... 12
Adiabatic Operation ............................................................................................................................................................................. 12
Dry Operation ....................................................................................................................................................................................... 13
Adiabatic Switchpoint.......................................................................................................................................................................... 13
Operating Modes ...................................................................................................................................................................................... 13
Default ................................................................................................................................................................................................... 13
Energy Saver ........................................................................................................................................................................................ 13
Water Saver........................................................................................................................................................................................... 13
Load Limiting Modes................................................................................................................................................................................ 14
Night Quiet............................................................................................................................................................................................ 14
Night Dry ............................................................................................................................................................................................... 14
Schedule Dry ........................................................................................................................................................................................ 14
Maintenance Modes.................................................................................................................................................................................. 14
Coil Clean.............................................................................................................................................................................................. 14
Pad Clean.............................................................................................................................................................................................. 14
Complete Drain and Dry ...................................................................................................................................................................... 14
Warranty .................................................................................................................................................................................................... 14
5. Water Quality .............................................................................................................................................................................................. 15
Process Fluid Water Quality .................................................................................................................................................................... 15

TrilliumSeries™ Adiabatic Cooler - TRF Operation & Maintenance Manual –Table of Contents Page | 3
Adiabatic Pre-Cooler Water Quality ........................................................................................................................................................ 15
Biological Control..................................................................................................................................................................................... 16
6. Cold Weather Operation ............................................................................................................................................................................. 17
About Cold Weather Operation ............................................................................................................................................................... 17
Coil Freeze Protection.............................................................................................................................................................................. 17
Minimum Operation.............................................................................................................................................................................. 17
Emergency Coil Drain .......................................................................................................................................................................... 18
Pre-Cooler Freeze Protection .................................................................................................................................................................. 18
Protection of Electrical Components...................................................................................................................................................... 18
7. Component Information & Maintenance...................................................................................................................................................... 19
Make-Up Water.......................................................................................................................................................................................... 20
General.................................................................................................................................................................................................. 20
Make-up Water Connection ................................................................................................................................................................. 20
Pressure Reducing Valve .................................................................................................................................................................... 21
Solenoid Valve...................................................................................................................................................................................... 22
Constant Flow Valve ............................................................................................................................................................................ 22
Adiabatic Pre-Cooler Pads....................................................................................................................................................................... 22
General.................................................................................................................................................................................................. 22
Scaling and Fouling ............................................................................................................................................................................. 23
Adiabatic Pre-Cooler Pad Removal .................................................................................................................................................... 24
Water Distribution System....................................................................................................................................................................... 25
General.................................................................................................................................................................................................. 25
Upper Water Distribution Channel...................................................................................................................................................... 26
Lower Water Collection Channel ........................................................................................................................................................ 27
Sump Strainer....................................................................................................................................................................................... 27
Recirculation pump.............................................................................................................................................................................. 28
Sump Water Level Float Switches ...................................................................................................................................................... 28
Sump Drain Valve................................................................................................................................................................................. 29
Fan and Motor........................................................................................................................................................................................... 30
General.................................................................................................................................................................................................. 30
Fan and Motor Removal & Installation ............................................................................................................................................... 31
Finned Coil Heat Exchanger .................................................................................................................................................................... 36
Programmable Logic Controller (PLC) ................................................................................................................................................... 37
General.................................................................................................................................................................................................. 37
Replacing the PLC battery................................................................................................................................................................... 37

TrilliumSeries™ Adiabatic Cooler - TRF Operation & Maintenance Manual –Table of Contents Page | 4
8. Control Logic............................................................................................................................................................................................... 40
Sequence of Operation Diagram......................................................................................................................................................... 41
9. User Interface ............................................................................................................................................................................................. 42
Home Menu ............................................................................................................................................................................................... 42
Access Levels........................................................................................................................................................................................... 43
Overview Menu ......................................................................................................................................................................................... 44
Fan Menu................................................................................................................................................................................................... 46
All Fans Menu....................................................................................................................................................................................... 47
Fan X Menu ........................................................................................................................................................................................... 50
Setpoints ................................................................................................................................................................................................... 52
Leaving Fluid Control & Customer Input Control Menu ................................................................................................................... 52
Basin Water Quality Menu ................................................................................................................................................................... 54
Load Limiting Menu ............................................................................................................................................................................. 56
Maintenance Menu ............................................................................................................................................................................... 61
Technician Menu .................................................................................................................................................................................. 64
Input & Output........................................................................................................................................................................................... 65
Temperatures Menu ............................................................................................................................................................................. 65
Make Up Menu ...................................................................................................................................................................................... 67
Pumps Menu......................................................................................................................................................................................... 68
Basin Water Level Menu ...................................................................................................................................................................... 69
Starts and Hours Menu ........................................................................................................................................................................ 70
Manual Menu......................................................................................................................................................................................... 72
Alarms ....................................................................................................................................................................................................... 73
Alarm Details Page............................................................................................................................................................................... 74
Settings ..................................................................................................................................................................................................... 75
Setup Menu........................................................................................................................................................................................... 75
Modbus RTU Setup .............................................................................................................................................................................. 77
BACnet MSTP Setup ............................................................................................................................................................................ 78
Modbus TCP Setup .............................................................................................................................................................................. 80
BACnet IP Setup................................................................................................................................................................................... 81
Software Version Menu........................................................................................................................................................................ 83
Technician Menu .................................................................................................................................................................................. 85
Data Logging Retrieval............................................................................................................................................................................. 87
Readdress New Fan.................................................................................................................................................................................. 90
Headless HMI ............................................................................................................................................................................................ 91

TrilliumSeries™ Adiabatic Cooler - TRF Operation & Maintenance Manual –Table of Contents Page | 5
10. Unit Operation & Storage .......................................................................................................................................................................... 92
General ...................................................................................................................................................................................................... 92
Corrosion Protection................................................................................................................................................................................ 92
Inspection.................................................................................................................................................................................................. 94
Cleaning .................................................................................................................................................................................................... 94
Start-up...................................................................................................................................................................................................... 95
Control Panel........................................................................................................................................................................................ 95
Control Settings ................................................................................................................................................................................... 95
Component Operation ......................................................................................................................................................................... 95
Extended Shutdown ................................................................................................................................................................................. 97
11. Alarms & Troubleshooting......................................................................................................................................................................... 98
Unit Alarm Codes.................................................................................................................................................................................... 105
Fan Alarm Codes .................................................................................................................................................................................... 106
12. BMS Communication .............................................................................................................................................................................. 107
BACnet IP & Modbus TCP...................................................................................................................................................................... 107
Points List ............................................................................................................................................................................................... 107

TrilliumSeries™ Adiabatic Cooler - TRF Operation & Maintenance Manual –Recommended Maintenance Intervals
Page | 6
1. Recommended Maintenance Intervals
1
Recommended service intervals are the minimum for typical installations. Harsh environmental conditions may dictate more frequent servicing.
2
Do not attempt to remove the adiabatic pre-cooler pads wet to prevent excessive degradation.
Inspect and clean as necessary [1]:
Start-Up
Monthly
Quarterly
Semi
Annually
Annually
Inspect general condition of the unit and check unit for unusual noise or vibration
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Inspect sump
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Inspect water distribution system
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Clean sump strainers & recirculation pumps
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Inspect water level float switches
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Inspect adiabatic pre-cooler pads [2]
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Check operation of make-up valves and drain valve
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Inspect the pressure reducing valve
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Check operation of pumps
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Check operation of water level float switches
Inspect coil
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Run coil clean maintenance mode
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Inspect unit finish
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Mechanical equipment system [1]:
Start-Up
Monthly
Quarterly
Semi
Annually
Annually
Check motor voltage and current
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󰣐
Check general condition of the fan(s)
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Check fan cycling, smooth operation
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󰣐

TrilliumSeries™ Adiabatic Cooler - TRF Operation & Maintenance Manual –Parts Map Page | 7
2. Parts Map
1
Coils
10
Integrated Control Panel
2
Fans with Integrated EC Motor Kit
11
Lower Water Collection Channel
3
Adiabatic Pre-Cooler Pads
12
Sump Access Door
4
Water Distribution Inspection Cover
13
Sump Strainer
5
Upper Water Distribution System
14
Drain Valve Access Cover
6
Plenum Access (on opposite face, not shown)
15
Recirculation Pump
7
Pressure Reducing Valve
16
Float Switch
8
Make Up Valve
17
Drain Valve
9
Constant Flow Valve
18
Overflow

TrilliumSeries™ Adiabatic Cooler - TRF Operation & Maintenance Manual –Parts Map Page | 8
Recommended Spare Parts
BAC Factory Authorized Parts are manufactured to meet rigorous specifications and are guaranteed to fit your unit and perform
as original equipment. BAC Factory Authorized Parts can be ordered through your local BAC Representative. Most BAC
Representatives maintain a local inventory of commonly used parts. For a free unit inspection and a specific parts list for your
serial number, contact your local BAC Representative today. Even with BAC’s fast delivery capability, it is still recommended
that certain essential and emergency repair part be maintained in your inventory to minimize any potential downtime.
Basic Recommended Spare Parts
Parts to Consider if Extended Downtime is a Concern
Recirculation Pump
Adiabatic Pre-Cooler Pad Kit
Float Switch
Fans with Integrated EC Motor Kit
Make-up Valve
Pressure Reducing Valve
Drain Valve
Strainer

TrilliumSeries™ Adiabatic Cooler - TRF Operation & Maintenance Manual –Warnings and Cautions Page | 9
3. Warnings and Cautions
Safety Precautions
•: Rotating equipment will cause severe personal injury or death to persons who come in contact.
Adequate safeguards (including the use of protective enclosures where necessary) should be taken with this equipment
both to safeguard the public from injury and to prevent damage to the equipment, its associated system, and the
premises.
•: Risk of electrocution which will cause severe personal injury or death. Use appropriate lockout
procedures. Do not perform any service on or near the unit without first ensuring the unit is de-energized.
•: Rotating equipment. Risk of serious injury or death. Never step on fan guard grill or subject the
guard grill to load. Do not place any objects on the fan guard grill.
•: The TrilliumSeries™ Adiabatic Cooler controls are set up to periodically flush and drain the water
system, thereby eliminating the need for water treatment. However, there may be unusual circumstances where chemicals
or biological contaminants could be introduced into the recirculating water system, that could be harmful if inhaled or
ingested. Wear appropriate respiratory protection, when exposed to the discharge air stream or to the mists produced by
cleaning activities associated with the recirculating water system or adiabatic pre-cooler pads.
•: Do not walk on the top horizontal surface of the unit. It is not intended to be used as a walking
surface or working platform. Risk of falling through the surface, resulting in physical injury or equipment damage.
•: Risk of electric shock. Live terminals and connections even with device switched off. Wait five
minutes after disconnecting the voltage at all poles before opening the fan and motor assembly.
•: Transporting the fan. Injuries from tipping or slipping. Wear safety shoes and cut-resistant safety
gloves. The fan is only to be transported in its original packaging. The fan is to be transported lying flat, i.e., the motor axis
must be vertical. Secure the fan(s) e.g., with a lashing strip to stop anything from slipping or tipping.
•: High temperature on fan motor electronics housing. Risk of burns. Ensure sufficient protection
against accidental contact.
•: Battery located in control panel PLC. Risk of explosion resulting in minor or moderate injury or
damage to property. Do not recharge or open the battery.

TrilliumSeries™ Adiabatic Cooler - TRF Operation & Maintenance Manual –Warnings and Cautions Page | 10
Equipment Precautions
NOTICE
•Drain all water piping feeding the adiabatic pre-cooler to avoid stagnant water conditions.
•Water hammer is a common reason for pressure-reducing valve failures. Protective devices should be installed to absorb
water hammer for systems with this risk.
•The adiabatic pre-cooler pads are made of flammable material and should be removed when performing hot work on or
near the unit. No actions that generate sparks should be performed on or near the unit.
•Do not run the unit wet with the adiabatic pre-cooler pads out and the fans on (thereby getting the coils wet). Wet/dry
cycling of the unit in this manner could shorten the coil life and void the warranty.
•To prevent excessive degradation, do not attempt to remove the adiabatic pre-cooler pads wet.
•Replace battery with R/C (BBCV2), Part. No. CR2032, rated 3V only. Use of another battery may present a risk of fire or
explosion. Only use the battery type specified in Table 6.
•Scratches on the control panel PLC motherboard may cause the motherboard to fail. Be careful with the battery
replacement lever and be sure to avoid scratching the motherboard.
•Changing the controller's parameters may result in an undesired operation of the unit, such as a hunting phenomenon,
premature activation of pre-cooling (and increased water consumption) or delayed pre-cooling activation (fluid outlet
temperatures exceeding the design temperature).
•Never use chloride or chlorine-based solvents such as bleach or muriatic (hydrochloric) acid to clean stainless steel. It is
important to rinse the surface with warm water and wipe with a dry cloth after cleaning.
•Do not use steam, high-pressure water, or high-pressure air to clean any component.