Johnson Controls YORK Tempo YLAA Series, Installation Operation & Maintenance

Page: 23 / 192

FORM 150.72-NM1 (1020)
23
JOHNSON CONTROLS
2
Flanges (ANSI/AWWA C-606 Couplings Type)
Consists of (2) flange adapters for grooved end pipe
(standard 150 psi [10.5 bar] cooler). (Not available on
optional DX cooler 300 PSIG 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 (150 PSIG [10.5
bar] DWP), - 20°F to 250°F (- 29°C to 121°C), with
1” NPT connection for upright mounting in horizontal
pipe. (Field-mounted)
Differential Pressure Switch
Alternative to an above mentioned flow switch.
Pretempco model DPS300AP40PF-82582-5 (300 psi
max. working pressure), SPDT 5 amp 125/250VAC
switch, Range 3 to 40 PSID, deadband 0.5 to 0.8 psi,
with 1/4” NPTE Pressure Connections.
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 balancing
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 environments
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 fencing.
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 unauthorized 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) .
• Louvered Panels (Condenser Coil Only)
- Lou-
vered panels are mounted on the sides and ends
of the condenser coils for protection. (Factory-
mounted)
• Louvered Panels (Full Unit)
- Louvered panels
surround the front, back, and sides of the unit.
They prevent unauthorized access and visually
screen unit components. Unrestricted air flow
is permitted through generously sized louvered
openings. This option is applicable for any out-
door design ambient temperature up to 115°F
(46°). (Factory-mounted)