Condenser - York YCAL0019 Installation, Operation And Maintenance Manual

SECTION 2 – PRODUCT DESCRIPTION
The heat exchanger is a brazed plate stainless steel con-
struction, single or dual circuit heat exchanger capable
of refrigerant working pressure of 650 PSIG (3103
kPa) and liquid side pressure of 150 PSIG (1034 kPa)
(Option for 300 PSIG [2068 kPa] available). Each heat
exchanger is covered in 3/4" (19mm) flexible, closed
cell insulation, thermal conductivity of 0.26k ([BTU/
HR-FT – °F] /in) maximum.
2
A strainer with a mesh size between .5 and 1.5 mm (40
mesh) is recommended upstream of the heat exchanger
to prevent clogging.

Condenser

Coils
Fin and tube condenser coils of seamless, internally-
enhanced, high-condensing-coefficient, corrosion re-
sistant copper tubes are arranged in staggered rows,
mechanically expanded into aluminum fins. Integral
subcooling is included. The design working pressure
of the coil is 650 PSIG (45 bar).
Low Sound Fans
The condenser fans are composed of corrosion resis-
tant aluminum hub and glass-fiber reinforced compos-
ite blades molded into a low 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 discharge. All blades are
statically and dynamically balanced for vibration-free
operation. The fan guards are constructed of heavy-
gauge, rust-resistant, PVC coated steel wire.
Motors
The fan motors are Totally Enclosed Air-Over (TEAO),
direct drive, 6 pole, current protected. They feature ball
bearings that are double-sealed and permanently lubri-
cated.
MILLENNIUM CONTROL CENTER
All controls are contained in a NEMA 3R/12 (and
equivalent to IP55*) cabinet with hinged outer door
and include Liquid Crystal Display (LCD) with Light
Emitting Diode (LED) backlighting for outdoor view-
ing and includes:
• Two display lines
• Twenty characters per line
20
Display/Print
Color coded 12-button non-tactile keypad with sec-
tions for display and print of typical
• Chilled liquid temperatures.
• Ambient temperature.
• System pressures (each circuit).
• Operating hours and starts (each compressor).
• Print calls up to the liquid crystal display.
• Operating data for the systems.
• History of fault shutdown data for up to the last
six fault shutdown conditions.
• An RS-232 port, in conjunction with this press-to-
print button, is provided to permit the capability
of hard copy print-outs via a separate printer (by
others).
Entry
This section is used to enter setpoints or modify system
values.
Setpoints
Updating can be performed to:
• Chilled liquid temperature setpoint and range
• Remote reset temperature range
• Set daily schedule/holiday for start/stop
• Manual override for servicing
• Low and high ambient cutouts
• Number of compressors
• Low liquid temperature cutout
• Low suction pressure cutout
• High discharge pressure cutout
• Anti-recycle timer (compressor start cycle time)
• Anti-coincident timer (delay compressor starts)
Unit
This section is used to:
• Set time
• Set unit options
* Intensity of Protection European Standard
** International Electrotechnical Commission
FORM 150.67-NM1
ISSUE DATE: 4/28/2017
information:
JOHNSON CONTROLS