York YCWL0056SE Installation Operation & Maintenance page 18

SECTION 2 – PRODUCT DESCRIPTION
ACCESSORIES AND OPTIONS
Power Options
Single Point Supply Terminal Block
The standard power wiring connection on all models
is a single point power connection to a factory pro-
vided terminal block. Components included are the
enclosure, terminal-block and interconnecting wiring
to the compressors. Separate external protection must
be supplied, by others, in the incoming power wiring.
(Do not include this option if either the Single-Point
Non-fused Disconnect Switch or Single-point Cir-
cuit Breaker options have been included.) (Factory-
Mounted)
Single Point Non-Fused Disconnect Switch
An optional unit-mounted disconnect switch with ex-
ternal, lockable handle (in compliance with Article
440-14 of N.E.C.), can be supplied to isolate the unit
power voltage for servicing. Separate external fusing
must be supplied, by others in the power wiring, which
must comply with the National Electrical Code and/or
local codes. (Factory-Mounted)
Single Point Circuit Breaker
An optional unit mounted circuit breaker with external,
lockable handle (in compliance with N.E.C. Article
440-14), can be supplied to isolate the power voltage
for servicing. (Factory-Mounted)
Multiple Point Circuit Breaker
Optional multipoint supply with independent system
circuit breakers and locking external handles (in com-
pliance with Article 440-14 of N.E.C) can be factory
supplied. Selecting this option also selects optional
compressor external overload for reduced MCA. (Fac-
tory-Mounted).
Control Transformer
Converts unit power voltage to 115-1-60 (0.5 or 1.0
KVA capacity). Factory mounting includes primary
and secondary wiring between the transformer and the
control panel. (Factory-Mounted)
Compressor External Overloads
Optional compressor motor overloads can be factory
mounted in the unit control/power panel. This option
will reduce the chiller MCA (minimum circuit ampac-
ity) and allow for reduced wire sizing to the unit. This
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option is not available for applications with Leaving
Condenser Water Temperature (LCWT) greater than
110ºF (43ºC). (Factory-Mounted)
Controls Options
Building Automation System Interface
A standard feature of the YCWL control panel to ac-
cept a pulse width modulated (PWM), 4 to 20 milli-
amp, or 0 to 10VDC input to reset the leaving chilled
liquid temperature from a Building Automation Sys-
tem. (Factory-Mounted)
Language LED and Keypad
Standard display language and keypad is in English.
Spanish, French, German, and Italian are available as
an option. (Factory-Mounted)
Heat Exchanger Options
Flow Switch
An optional flow switch can be factory supplied for the
evaporator. Vapor-proof SPDT, NEMA 3R switch, 150
PSIG (10.3 bar) DWP, 20°F to 250°F (-29°C to 121°C)
with 1" NPT (IPS) connection for upright mounting in
horizontal pipe. The flow switch or its equivalent must
be furnished with each unit. (Field mounted)
Differential Pressure Switch
This is an alternative option to the paddle-type flow
switch. It has a 3 to 45 PSIG (0.2 to 3 bar) range with
¼" NPTE pressure connections. (Field Mounted)
Pressure Vessel Codes
Evaporators and condensers are to be supplied (stan-
dard) in conformance with the A.S.M.E. pres sure
codes.
Raised Face Flange (ANSI/AWWA C-606 Type)
Consists of (4) flange adapters for grooved end pipe on
evaporator and condenser (note: the 0056SE, 0064SE,
and 0074SE units do not include condenser flanges).
Standard 150 psi (10.3 bar).
(Field mounted, matching pipe flange by contractor.)
Double Thick Insulation
Double thick (1-1/2") insulation provided on the evap-
orator. (Factory-Mounted)
FORM 201.26-NM1
ISSUE DATE: 1/19/2018
JOHNSON CONTROLS