Johnson Controls Quantech Millennium QCC3080CZE Installation Operation & Maintenance page 18

SECTION 2: PRODUCT DESCRIPTION
Control options
Ambient kit (low): Units will operate to (standard)
32°F (-4°C). This accessory includes all necessary
components to permit condensing unit operation to 0°F
(-18°C). (This option includes the Discharge Pressure
Transducer / Readout Capa bility option.) For prop-
er head pressure control in applications below 25°F
(-4°C) where wind gusts may exceed 5 mph (8 km/h),
it is recommended that Optional Condenser Louvered
Enclosure Panels also be included. (Factory mount-
ed).
Building automation system interface: The factory
addition of a Printed Circuit Board to accept a 4 mA to
20 mA, 0 VDC to 10 VDC, or contact closure input to
reset the discharge air temperature from a Building Au-
tomation System. (Fac tory Mounted). (The standard
control panel can be directly connected to a Quantech
Building Automated System via the standard on board
RS485 communication port.)
Language LCD and keypad display: Spanish,
French, German, and Italian unit LCD controls and
keypad display avail able. Standard language is Eng-
lish.
Discharge pressure transducers and readout ca-
pability: The addition of pressure trans ducers allows
models to sense and display discharge pressure. (This
option as included with either the low or high ambient
kits). (Factory mounted).
Suction pressure transducers and readout capabil-
ity: The addition of suction transduc ers allows mod-
els to sense and display suction pressure. (Factory
mounted).
Suction temperature readout: The addition of tem-
perature sensors allow models to sense and display
suction temperature. (Factory mounted).
Compressor and piping options
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Chicago code relief valves: Unit will be provided with
relief valves to meet Chicago code requirements. (Fac-
tory mounted).
Hot gas by-pass: Permits continuous, stable operation
at capacities below the minimum step of compressor
unloading to as low as 5% capacity (depending on both
the unit and operating conditions) by introducing an
artificial load. Hot gas by-pass is available installed on
refrigerant system 1 or on both systems of two circuit-
ed units. (Factory mounted).
Service isolation valve: Service suction and discharge
(ball type) isolation valves are added to unit per sys-
tem. This option also includes a system high pressure
relief valve in com pliance with ASHRAE 15. (Factory
mounted).
Condenser and cabinet options
Condenser coil protection against corrosive environ-
ments is available by choosing any of the following
options. For additional application recommendations,
refer to Form 150.12-ES1. (Factory mounted).
Pre-coated fin condenser coils: The air-cooled con-
denser coils are constructed of black epoxy-coated
aluminum fins. This can provide corrosion resistance
comparable to copper-fin coils in typical seashore loca-
tions. Either these or the post-coated coils (below), are
recommended for units being installed at the seashore
or where salt spray may hit the unit.
Post-coated dipped condenser coils: The unit is built
with dipped and cured condenser coils. This is another
choice for seashore and other corrosive appli cations
(with the exception of strong alkalis, oxidizers and
wet bromine, chlorine and fluorine in concentrations
greater than 100 ppm).
Copper-fin condenser coils: The unit constructed
with condenser coils which have copper fins. (This is
not recommended for units in areas where they may be
exposed to acid rain).
Enclosure panels for unit: Tamperproof Enclosure
Panels prevent unauthorized access to units. Enclo-
sure Panels can provide an aesthetically pleasing al-
ternative to expensive fencing. Additionally, for proper
head pressure control, Quantech recommends the use
of Condenser Louvered Panels for winter applications
where wind gusts may exceed 5 mph (8 km/h).
The following types of enclosure panels are available:
FORM QCC3-NM1
ISSUE DATE: 12/19/2023
Quantech