User Manual

Available in 20, 30 and 70 tons, modules can be
congured to provide project turndown and capacity
requirements from 20 - 420 tons. By simply adding
modules, the UCA can satisfy future incremental
growth needs. This model was designed to provide a
quiet, serviceable and extremely ecient system
that will oer years of reliable operation.
Quiet High eciency, variable speed EC condenser
fans with integral head pressure control and acoustical
blade design, provide low operating noise levels.
Reliable Dual scroll compressors with independent
refrigerant circuits provide reliable, ecient, quiet
and redundant operation. Use of highly ecient, dual
circuit brazed plate heat exchangers oer maximum
performance at both full and part-load conditions.
Compact Modules have a low center of gravity
and base cutouts for forklifts or pallet jacks for ease
of transport and rigging. The compact design allows
signicant space savings and easy installation in
severely limited areas.
Flexible Back-to-back, end-to-end and combination
congurations provide ultimate design exibility.
The UCA oers a standard ambient operating range
of 0 to 115°F. 20, 30 and 70 ton modules can be mixed
and matched for required bank capacity.
Environmentally Friendly Micro charge of non-
ozone depleting R-410A oers better eciency, higher
capacity and utilizes superior synthetic lubricants for
longer compressor life.
Flexible, Simple, Reliable
Photo shows two 30 ton UCA modules, totaling
60 tons capacity, in an end-to-end conguration.
Energy Ecient High eciency design oers a
minimum of 10.0 EER at full-load, exceeding ASHRAE
90.1 minimum eciency requirements.
Durable Heavy gauge G90 galvanized steel cabinet
with 3 mil powder coat paint nish cabinet construction
provides superior protection from weather. Schedule
40 carbon steel pipe water headers are designed to
connect to adjacent modules through the use of 300
psi rated grooved couplings.
True Redundancy Separate module electrical
feeds and integral water isolation valves permits
maintenance of one module while the remaining
system continues operation.
Service Friendly Design allows easy access to all
major components. Unique design is fully serviceable
and maintainable without removal of module from the
chiller bank or disassembly of headers.
Integrated CoolLogic Control System
Each module has an independent control panel and
simple two-conductor shielded daisy chain connection
from the Master Panel to the modules ensuring
ultimate performance with minimal eld wiring. BAS
interface with native BACnet, Modbus, Lonworks,
and N2 communications.
70 ton UCA,
Cooling Only