Condenser And Cabinet Options - York YLAA0285SE Manual

FORM 150.72-NM3 (1020)
ISSUE DATE 10/05/2020
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 operat-
ing conditions) by introducing an artificial load on the
cooler. Hot gas by-pass is installed on only refrigerant
system #1 on two-circuited units. (Factory- mounted)
DX COOLER 300 (21 BAR) PSIG DWP WATERSIDE
The waterside will be of 300 PSIG (21 bar) instead of the
standard 150 PSIG DWP. 300 PSIG R.F. flanges are in-
cluded on the DX cooler nozzles. (Factory-mounted) The
companion flanges will be field-supplied by others.
FLANGES (ANSI/AWWA C-606 COUPLINGS
TYPE)
Consists of (2) flange adapters for grooved end pipe
(standard 10.5 bar [150 psi] cooler). (Not available on
optional DX cooler 21 bar (300 psi) DWP waterside.)
(Field-mounted)
FLOW SWITCH
The flow switch or its equivalent must be furnished
with each unit.
150 PSIG (10.5 BAR) DWP
For standard units. Johnson Controls model F61MG-
1C Vapor-proof SPDT, NEMA 3R switch (10.5 bar
[150 psig] DWP), -29°C to 121°C (-20°F to 250°F),
with 1" NPT connection for upright mounting in
horizontal pipe. (Field-mounted)
FLOW SWITCH ACCESSORY
Vapor proof SPDT, NEMA 3R switch, 10.3 barg (150
psig) DWP, -7°C to 121°C (20°F to 250°F) with 1" NPT
(IPS) connection for upright mounting in horizontal pipe
(this flow switch or equivalent must be furnished with
each unit). (Field-mounted)
DIFFERENTIAL PRESSURE SWITCH
Alternative to an above mentioned flow switch. Vapor
proof SPDT, NEMA 3R switch, 10.3 barg (150 psig)
DWP, -7°C to 121°C (20°F to 250°F) with 1" NPT
(IPS) connection for upright mounting in horizontal
pipe (This flow switch or equivalent must be furnished
with each unit).
JOHNSON CONTROLS
SECTION 2 – PRODUCT DESCRIPTION
HYDRO-KIT
Factory installed Hydro-Kit suitable for water glycol
systems with up to 35% glycol at leaving temperatures
down to 20° F. The Hydro-kit option is available in a
single or dual configuration (dual as standby duty only),
with totally enclosed permanently lubricated pump
motors.
The hydro-kit option comes standard with a balanc-
ing valve, flow switch, pressure ports, suction guide,
strainer, bleed and drain valves and frost protection.
Expansion tanks are optional within the Hydro-Kit
option.

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 150.1 -ES1. (Factory-mounted)
POST-COATED DIPPED CONDENSER
COILS
The unit is built with dipped-cured condenser coils.
This is the choice for corrosive applications (with
the exception of strong alkalis, oxidizers and wet
bromine, chlorine and fluorine in concentrations
greater than 100 ppm).
ENCLOSURE PANELS (UNIT)
Tamperproof Enclosure Panels prevent unauthorized
access to units. Enclosure Panels can provide an
aesthetically pleasing alternative to expensive fenc-
ing. Additionally, for proper head pressure control,
Johnson Controls recommends the use of Condenser
Louvered Panels for winter applications where wind
gusts may exceed five miles per hour. The following
types of enclosure panels are available:
WIRE PANELS (FULL UNIT)
Consists of welded wire-mesh guards mounted
on the exterior of the unit. Prevents unauthor-
ized access, yet provides free air flow. (Factory-
mounted)
WIRE/LOUVERED PANELS
Consists of welded wiremesh panels on the bottom
part of unit and louvered panels on the condenser
section of the unit. (Factory- mounted).
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