JOHNSON CONTROLS
18
FORM 150.73-NM1
ISSUE DATE: 09/04/2020
SECTION 2 – PRODUCT DESCRIPTION
Control Options
Ambient Kit (Low) –
Units will operate to (stan-
dard) 32°F (-4°C). This accessory includes all neces-
sary components to permit condensing unit operation
to 0°F (-18°C). (This option includes the Discharge
Pressure Transducer / Readout Capa bility option.)
For proper head pressure control in applications be-
low 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
mounted)
.
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 YORK
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 Ca-
pability –
The addition of suction transduc ers allows
models 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
Chicago Code Relief Valves –
Unit will be provided
with relief valves to meet Chicago code requirements.
(Factory mounted)
.
Hot Gas By-Pass –
Permits continuous, stable opera-
tion at capacities below the minimum step of compres-
sor 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 cir-
cuited units.
(Factory mounted)
.
Service Isolation Valve –
Service suction and dis-
charge (ball type) isolation valves are added to unit
per system. 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
condenser 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 concentra-
tions 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 (Unit) –
Tamperproof Enclosure
Panels prevent unauthorized access to units. Enclosure
Panels can provide an aesthetically pleasing alterna-
tive to expensive fencing. Additionally, for proper head
pressure control, YORK recommends the use of Con-
denser Louvered Panels for winter applications where
wind gusts may exceed 5 mph (8 km/h).
Summary of Contents for YLUA0078
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