JOHNSON CONTROLS
8
FORM 201.23-EG2 (713)
Accessories and Options
sides of the unit to visually screen and protect coils.
(
Factory-mounted
)
• Louvered Panels (full unit)
– Louvered panels,
painted the same color as the unit, enclose the unit
to protect condenser coils from incidental damage,
visually screen internal components, and prevent
unauthorized access to internal components. (
Fac-
tory-mounted
)
• Louvered (Condensers)/Wire Panels (Mechanical)
– Louvered panels, painted the same color as the unit,
are mounted on external condenser coil faces. Heavy
gauge, welded wire-mesh, coated to resist corrosion,
around base of machine to restrict unauthorized ac-
cess. (
Factory-mounted
)
EVAPORATOR OPTIONS:
•
38mm (1-1/2”) Insulation
– Double thickness insula-
tion provided. (
Factory-mounted
)
•
Raised Face Flange Accessory
for cooler nozzles:
♦ 10.3 barg (150 psig), welded flanges (field kit,
matching pipe flange by contractor).
♦ 10.3 barg (150 psig) companion weld flanges. (field
kit).
♦ 150 psig (10.3 barg), ANSI/AWWA C-606 COU-
PLINGS (field kit, matching pipe flange by contrac-
tor).
• Opposite Handed Evaporator Water Connections
for ease of installation. Standard water connections
are on the left-hand side of the unit, when viewed from
the control panel end.
GENERAL OPTIONS:
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 mount-
ing in horizontal pipe (This flow switch or equivalent must
be furnished with each unit). (
Field-mounted
).
DIFFERENTIAL PRESSURE SWITCH -
Alternative to
the paddle-type flow switch. 0.2-3 barg (3-45 psig) range
with 1/4" NPTE pressure connections. (
Field-mounted
)
BUILDING AUTOMATION SYSTEM INTERFACE -
Chiller
to accept 4 to 20mA or 0 to 10 VDC input to reset the leav-
ing chilled liquid temperature. (
Factory-mounted
)
MULTI-UNIT SEQUENCE CONTROL -
Separate se-
quencing control center provided to permitting control
of up to eight chillers in parallel based on mixed liquid
temperature (interconnecting wiring by others). (
Field-
mounted
)
SERVICE ISOLATION VALVE
– Service suction isolation
valve added to unit for each refrigerant circuit. (
Factory-
mounted
)
CHICAGO CODE RELIEF VALVE -
Special relief valves
per Chicago code. (
Factory-mounted
)
PRESSURE RELIEF (CE/PED) SERVICE VALVE KIT
-
Each relief valve is mounted on a sealable ball valve to
aid maintenance. (
Factory-mounted
)
CIRCUIT BREAKER
– Power panel will come equipped
with a factory mounted circuit breaker at the point of
incoming single or multi-point connections that provides
the following:
• A means to disconnect power mounted on chiller.
• Circuit breaker(s) sized to provide the motor branch
circuit protection, short circuit protection and ground
fault protection for the motor branch-circuit conductors,
the motor control apparatus and the motors. (Chiller
mounted circuit breaker option sized for branch circuit
protection eliminates the need to provide a separate
‘line of sight’ disconnect and separate branch circuit
protection device.)
• A lockable operating handle that extends through
power panel door. This allows power to be discon-
nected without opening any panel doors.
• A Short Circuit Withstand Rating of 65,000 amps
when the chiller electrical enclosure when using cir-
cuit breaker option is 380, 400, & 460. Rated IAW
UL508.
VIBRATION ISOLATION:
• Elastomeric Isolation
– This option is recommended
for normal in stallations. It provides very good perfor-
mance in most applications for the least cost. (
Field-
mounted
)
• 25mm (1”) Spring Isolators
– Spring and cage type
isolators for mounting under the unit base rails. They
are level adjustable. 1” nominal deflection may vary
slightly by appli cation. (
Field-mounted
)
• 51mm (2”) Seismic Spring Isolators
– Restrained
Spring-Flex Mounting isolators incorporate a rugged
welded steel housing with vertical and horizontal limit
stops. Housings de signed to withstand a minimum
1.0g accelerated force in all directions up to 51mm
(2”). The deflection may vary slightly by application.
They are level adjustable. (
Field-mounted
)
Summary of Contents for YCIV
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