York YCIV Series, Установка, эксплуатация и обслуживание

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JOHNSON CONTROLS
24
FORM 201.23-NM2
ISSUE DATE: 09/25/2020
SECTION 2 - PRODUCT DESCRIPTION
Evaporator Options
Double Thick 1 1/2 in. Insulation
Double thickness insulation is provided. (Factory-
mounted)
Raised Face Flange Accessory
Used for cooler nozzles:
• 150 psig (10.3 barg), welded flanges (field kit,
matching pipe flange by contractor).
• 150 psig (10.3 barg) companion weld flanges
(field kit - not available with 460 V units).
• 150 psig (10.3 barg), ANSI/AWWA C-606 cou-
plings (field kit, matching pipe flange by contrac -
tor).
Opposite Handed Evaporator Water
Connections
Easily installed standard water connections are on the
left-hand side of the unit, when viewed from the con-
trol panel end.
General Options
Flow Switch Accessory
Vapor proof SPDT, NEMA 3R switch, 150 psig (10.3
barg) DWP, 20°F to 250°F (-7°C to 121°C) with 1 in.
NPT (IPS) connection for upright mounting in hori-
zontal pipe (This flow switch or equivalent must be
furnished with each unit). (Field-mounted)
Differential Pressure Switch
Alternative to the paddle-type flow switch. Range is 3
psig to 45 psig (0.2 barg to 3 barg) with 1/4 in. NPTE
pressure connections. (Field-mounted)
Building Automation System Interface
Chiller will accept 4 mA to 20 mA or 0 VDC to 10
VDC input to reset the leaving chilled liquid tempera-
ture. (Factory-mounted)
Multi-Unit Sequence Control
Separate sequencing control center provided to permit-
ting 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 mount-
ed 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 elimi-
nates 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 A
when the chiller electrical enclosure when using
circuit breaker option is 380 V, 400 V, and 460 V.
Rated IAW UL508.
Vibration Isolation
Elastomeric Isolation
This option is recommended for normal installations. It
provides very good performance in most applications
for the least cost. (Field-mounted)
One Inch Spring Isolators
Spring and cage type isolators for mounting under the
unit base rails. They are level adjustable. Nominal de-
flection is 1 in. and may vary slightly by application.
(Field-mounted)
Two Inch Seismic Spring Isolators
Restrained Spring-Flex Mounting isolators incorporate
a rugged welded steel housing with vertical and hori-
zontal limit stops. Housings designed to withstand a
minimum 1.0g accelerated force in all directions up to
2 in. (51mm). The deflection may vary slightly by ap-
plication. They are level adjustable.
(Field-mounted)