JOHNSON CONTROLS
8
discharge pressure. This is recommended for brine chilling
applications. (This option is included with either the low or
high ambient kits.) (Factory-mounted.)
MOTOR CURRENT MODULE – Capable of monitoring
compressor motor current. Provides extra protection
against compressor reverse rotation, phase-loss and
phase imbalance. Option consists of one module per
electrical system. (Factory-mounted.)
REMOTE CONTROL PANEL AND WALL ADAPTOR–
(Available on YCAL0014-0080 models only)(Only one of
following options can be offered on a unit at a time: BAS,
Remote Control Panel,Optiview Remote Graphic Panel
or Multi-unit Sequence Control.) (Field-mounted.)
OPTIVIEW REMOTE CONTROL PANEL - Graphical
interface panel to remotely control and monitor up to 8
different units. (Refer to form 201.18-SG4 for detailed
information)
MULTI-UNIT SEQUENCING – A separate Sequencing
Control Center is provided to handle sequencing control
of up to eight chillers in parallel based on mixed liquid
temperature (interconnecting wiring by others). (Only one
of following options can be offered on a unit at a time: BAS,
Remote Control Panel or Multi-unit Sequence Control.)
(Factory-mounted.)
COMPRESSOR, PIPING, EVAPORATOR
OPTIONS:
LOW TEMPERATURE BRINE – Required for brine
chilling below 30°F (-1°C) leaving brine temperature
for YCAL0014-0080 models. Option includes resized
thermal expansion valve. Low temperature brine is stan-
dard on YCAL0090-0134 models. (Factory-mounted)
CHICAGO CODE RELIEF VALVES – Unit will be provided
with relief valves to meet Chicago code requirements. (Fac-
tory-mounted.)
SERVICE ISOLATION VALVE – Service suction and dis-
charge (ball type) isolation valves are added to unit per
system. This option also includes a system high pressure
relief valve in compliance with ASHRAE 15. (Factory-
mounted.)
HOT GAS BY-PASS – Permits continuous, stable operation
at capacities below the minimum step of compressor un-
loading to as low as 5% capacity (depending on both the
unit and operating conditions) by introducing an articial
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 stan-
dard 150 PSIG DWP. 300 PSIG R.F. anges are included on
the DX cooler nozzles. (Factory-mounted.) The companion
anges will be eld-supplied by others.
FLANGES (WELD TYPE) – Consists of 150 lb. (standard
150 psi [10.5 bar] cooler) R.F. anges to convert to anged
cooler-connections and includes companion anges. (300
lb. anges included on optional DX cooler 300 PS
IG DWP
waterside) (Field-mounted.)
F
LANGES (VICTAULIC TYPE) – Consists of (2) Flange
adapter 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 ow 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
4X 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.)
3
00 psig (21 bar) DWP – For units with optional 300
PSIG (21 bar) DX cooler. McDonnell & Miller model FS7-
4W
Vapor-proof SPDT, NEMA 4X switch (300 PSIG (21
bar) DWP), -20°F to 300°F (-29°C to 149°C), with 1¼
inch MPT connection for upright mounting in horizontal
pipe. (Field-mounted.)
D
IFFERENTIAL PRESSURE SWITCH – Alternative to an
above mentioned ow switch. Pretempco model DPS300A-
P40PF-82582-5 (300 psi max. working pressure), SPDT 5
amp 125/250VAC switch, Range 3 - 40 PSID, deadband
0.5 - 0.8 psi, with 1/4” NPTE Pressure Connections.
REMOTE DX COOLER – A split system arrangement
with the cooler, leaving & return water sensors, liquid line
solenoid valves, lter driers, sightglasses & TXVs shipped
loose for eld connection to the air-cooled condensing
section. The DX cooler and outdoor section will have a
nitrogen holding charge. Interconnecting rigid piping, wiring
and refrigerant are by others. Includes YORK Service start-
up. See Form 150.62-NM1.1 (200) for other application
information. (This option includes the Crankcase Heater
option.)(Field-mounted.)
CONDENSER AND CABINET OPTIONS:
Condenser coil protection against corrosive environments
is available by choosing any of the following options. For
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