Section 1: General Equipment Information And Safety; Introduction; Compressors; Condenser - Johnson Controls Quantech Millennium QCC3080CZE Installation Operation & Maintenance

FORM QCC3-NM1
ISSUE DATE: 12/19/2023

Section 1: General equipment information and safety

Before operating the unit, refer to Chiller
A2L Refrigerant Application Data, Form
160.00-AD10.

Introduction

The 78 ton to 160 ton (273 kW to 560 kW) QCC3 con-
densing unit models are shipped complete from the
factory ready for field installation.
The unit is pressure-tested, evacuated and given a ni-
trogen holding charge and includes an initial oil charge
(R-410A or R-454B refrigerant supplied by others).
After assembly, an operational test is performed to en-
sure that each control device operates correctly.
The unit structure is heavy-gauge, galvanized steel.
This galvanized 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. Units are designed in accordance with
NFPA 70 (National Elec tric Code), ASHRAE/ANSI 15
Safety code for mechanical refrigeration, and are cETL
listed. All units are produced at an ISO 9000-registered
facility.

Compressors

The condensing unit has suction-gas cooled, hermet-
ic, scroll com pressors. The compressors incorporate
a compliant scroll design in both the axial and radial
direction. All rotating parts of the compressors are
statically and dynamically balanced. A large internal
volume and oil reservoir pro vides greater liquid toler-
ance. Compressor crankcase heaters are also included
for extra protection against liquid migration.

Condenser

Coils – Fin and tube condenser coils of seamless, inter-
nally-enhanced, high-condensing-coefficient, corro-
sion resistant copper tubes are arranged in staggered
rows, mechanically expanded into aluminum fins. Inte-
gral subcooling is included. The design working pres-
sure of the coil is 650 psig (45 barg).
Fans – The condenser fans are composed of corro-
sion-resistant aluminum hub and glass-fiber-reinforced
polypropylene composite blades molded into a low
Quantech
noise airfoil section. They are designed for maximum
efficiency and are statically and dynamically balanced
for vibration free operation. They are directly driven by
independent motors, and positioned for vertical air dis-
charge. The fan guards are constructed of heavy-gauge,
rust-resistant, coated steel. All blades are statically and
dynamically balanced for vibration-free operation.
Motors – The fan motors are Totally Enclosed Air-
Over, squirrel-cage type, current protected. They fea-
ture ball bearings that are double-sealed and perma-
nently lubri cated.

Refrigerant circuit

Two inde pendent refrigerant circuits will be furnished
on each unit. All unit piping will be copper, with brazed
joints. The liquid line will include a field connection
shutoff valve with charg ing port located on each con-
denser circuit. Suction line connections are provided
on each refrigeration circuit.
All expansion valves, liquid line solenoid valves, filter
driers, sight glasses, refriger ant, and refrigerant field
piping are supplied and installed by others.

Warranty

Quantech warrants all equipment and materials against
defects in workmanship and materials for a period of
eighteen months from date of shipment, unless labor
or extended warranty has been purchased as part of the
contract.
The warranty is limited to parts only replacement and
shipping of any faulty part, or sub-assembly, which has
failed due to poor quality or manufacturing errors. All
claims must be supported by evidence that the failure
has occurred within the warranty period, and that the
unit has been operated within the designed parameters
specified.
All warranty claims must specify the unit model, serial
number, order number and run hours/starts. Model and
serial number information is printed on the unit identi-
fication plate.
The unit warranty will be void if any modification to
the unit is carried out without prior written approval
from Quantech.
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