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FORM QTC2-eg1 (515)
QUANTECH
5
Quantech™ is proud to present the model QTC2 Air-Cooled Scroll Chiller.
The QTC2 Air-Cooled Scroll Chillers provide chilled water for all air conditioning applica-
tions using central station air handling or terminal units. They are completely self-con-
tained and are designed for outdoor (roof or ground level) installation. Each unit includes
hermetic scroll compressors, a liquid cooler, air-cooled condenser, a charge of refrigerant
r-410A, and a weather resistant microprocessor control center, all mounted on a rugged,
formed-steel base.
GENERAL
The 15 - 46 Ton (53 - 162 kW) QTC2 models are shipped complete from the factory ready
for installation and use.
The unit is pressure-tested, evacuated, and fully charged with refrigerant-410A and in-
cludes an initial oil charge. After assembly, a complete operational test is performed with
water flowing through the cooler to assure that the refrigeration circuit operates correctly.
The unit structure is heavy-gauge, galvanized steel. The steel is coated with baked-on
powder paint, which, when subjected to ASTm B117 1000 hour, salt spray testing, yields
a minimum ASTm 1654 rating of “6”. Corrosion resistant wire mesh panels are added to
protect the condenser coil from incidental damage and restrict unauthorized access to
internal components. Unit also includes service isolation valves as standard. Units are
designed in accordance with NfPA 70 (National Electric Code), AShrAE/ANSi 15 Safety
code for mechanical refrigeration, ASmE, listed and labeled with intertek Testing Services
(ETl) and rated in accordance with the latest version of Ahri Standard 550/590.
COMPRESSORS
The chiller has suction-gas cooled, hermetic, scroll compressors. The compressors incor-
porate a scroll design that is compliant in both the axial and radial direction. All rotating
parts are statically and dynamically balanced. A large internal volume and oil reservoir
provides greater liquid tolerance. Compressor crankcase heaters are also included for
extra protection against liquid migration.
COOLER
Brazed plate heat exchangers are Ul (Underwriters laboratories) listed. installing con-
tractor must include accommodations in the chilled water piping to allow proper drainage
and venting of the heat exchanger. Water inlet and outlet connections are grooved for
compatibility with factory supplied ANSi/AWWA C-606 connections.
The cooler is equipped with a heater controlled by a separate thermostat. The heater
provides freeze protection for the cooler down to -20°f (-29°C) ambient. The cooler is
covered with 3/4” (19mm) flexible, closed-cell, foam insulation (K≈0.25).
Introduction
Summary of Contents for QTC2015T
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Page 25: ...FORM QTC2 eg1 515 QUANTECH 25 Unit Dimensions English Cont d QTC2025T LD18674...
Page 33: ...FORM QTC2 eg1 515 QUANTECH 33 45 1 8 18 1 2 LD18682 Unit Dimensions English Cont d QTC2045T...
Page 47: ...FORM QTC2 eg1 515 QUANTECH 47 Unit Dimensions Metric Cont d QTC2045T 424 LD18702...
Page 57: ...FORM QTC2 eg1 515 QUANTECH 57 Power Wiring LD18707...
Page 58: ...QUANTECH FORM QTC2 eg1 515 58 LD18744 Power Wiring Cont d...
Page 59: ...FORM QTC2 eg1 515 QUANTECH 59 Power Wiring Cont d LD18746...
Page 60: ...QUANTECH FORM QTC2 eg1 515 60 Factory wired with optional transformer LD03611 Control Wiring...