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1.0 INTRODUCTION
This manual applies to Water Cooled Self Contained Units, Models UCQ60 to
specific instructions for installation, owner maintenances, and troubleshooting.
Due to continuous product improvement and enhancements, the information provided is subject to change without
notice.
1.1 NOMENCLATURE
UC
Unit Category
UC: Water Cooled
Refrigerant
Q: R410A
Capacity (MBH)
90: 90MBH
Generation
A- 1st Generation (1 inch PU panel)
A2 -1st Generation (2 inch PU panel)
Controller Description
B: Basic Control Box with Terminal Block
E: DOL Starter with Electronic Controller
S: Soft Starter with Electronic Controller
1.2 DESCRIPTION OF UNIT
The water cooled self-contained air conditioner is the ultimate solution addressing the energy efficiency, reliability,
indoor air quality, and sound concerns for commercial, industrial and institutional buildings. Daikin offers a simple
system design, increases system redundancy by providing individual air conditioning systems per floor, lowers
maintenance costs, eases operation and maintenance, and provides the lowest life cycle cost available. Based on
these features, the self-contained unit has surpassed the traditional chillers, air handlers and rooftop systems and is
now the system of choice.
Models UCQ60 to UCQ940 are factory assembled, refrigerant charged and tested water-cooled packaged air
conditioning units designed for ducted or free blow applications.
Each unit contains:
• Single or multiples hermetic scroll compressors
• Water cooled condensers
• Single or multi-circuit evaporator
• Thermal expansion valves
• Interconnecting refrigerant piping
• Double inlet centrifugal supply fan
All rigging, installation, power and control wiring external to the unit, and condenser water and condensate piping
are under the responsibility of the installer.
Q
90
A
E
L
P
Y1
Power
Y1: 380~415V, 3Ph, 50Hz
Additional Features
Blank: Without pressure gauge; standard condenser outlet
P: With pressure gauge; standard condenser outlet
L: Without pressure gauge; custom made: left condenser outlet
M: With pressure gauge; custom made: left condenser outlet
R: Without pressure gauge; custom made: right condenser outlet
M: With pressure gauge; custom made: left condenser outlet
External Static Pressure
D: With Plenum, 0Pa
L: Standard, 250Pa
H: Maximum,375Pa
• Belt driven
• Fan motor
• R29 or G3 Filters
• All necessary operating and required safety
controls to operate the unit.
UCQ940.
This manual provides
5
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