FORM 150.67-NM2 (209)
17
JOHNSON CONTROLS
2
COMPRESSOR, PIPING, EVAPORATOR
OPTIONS
LOW TEMPERATURE BRINE –
Required for brine
chilling below 30 °F (-1 °C) leaving brine temperature
for YCAL0019 – 0066 models. Option includes resized
thermal expansion valve (
Factory-Mounted
).
CHICAGO CODE RELIEF VALVES –
Unit will
be provided with relief valves to meet Chicago code
requirements (
Factory-Mounted
).
SERVICE ISOLATION VALVE –
Service suction
and discharge (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 com-
pressor unloading to as low as 5% capacity (depending
on both the unit and operating conditions) by introduc-
ing an arti
fi
cial load on the cooler. Hot gas by-pass is
installed on only refrigerant system #1 on two-circuited
units (
Factory-Mounted
).
HEAT EXCHANGER 300 PSIG (21 BAR) DWP
WATERSIDE –
The waterside will be of 300 PSIG
(21 bar) instead of the standard 150 PSIG DWP. 300
PSIG R.F.
fl
anges are included on the Heat Exchanger
nozzles (
Factory-Mounted
). The companion
fl
anges
will be
fi
eld-supplied by others.
FLANGES (ANSI/AWWA C-606 COUPLINGS
TYPE) –
Consists of two (2) Flange adapters for
grooved end pipe (standard 150 psi [10.5 bar] cooler).
FLOW SWITCH –
The
fl
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
).
300 PSIG (21 BAR) DWP –
For units with optional 300
PSIG (21 bar) DX cooler. McDonnell & Miller model
FS74W 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
).
DIFFERENTIAL PRESSURE SWITCH –
Alterna-
tive to an above mentioned
fl
ow switch. Pretempco
model DPS300AP40PF-82582-5 (300 psi max. working
pressure), SPDT 5 amp 125/250VAC switch, Range 0
– 40 PSID, deadband 0.5 – 0.8 psi, with 1/4” NPTE
Pressure Connections.
CONDENSER AND CABINET OPTIONS
Condenser coil protection against corrosive environ-
ments is available by choosing any of the following
options. For additional application recommendations,
refer to FORM 150.12-ES1 (
Factory-Mounted
).
PRE-COATED FIN CONDENSER COILS –
The
unit's coils are constructed with black epoxy coated
aluminum
fi
ns. This can provide corrosion resistance
comparable to copper-
fi
n coils in typical seashore loca-
tions. Either these or the post-coated coils (below), are
recommended for units being installed at the seashore
or where salt spray may hit the unit.
POST-COATED DIPPED CONDENSER COILS
–
The unit's coils are constructed with dipped-cured
condenser coils. This is another choice for seashore
and other corrosive applications (with the exception of
strong alkalies, oxidizers and wet bromine, chlorine and
fl
uorine in concentrations greater than 100 ppm).
COPPER FIN CONDENSER COILS –
The unit's
coils are constructed with copper
fi
ns. (This is not
recommended for units in areas where they may be
exposed to acid rain).
ENCLOSURE PANELS (UNIT) –
Tamperproof
Enclosure Panels prevent unauthorized access to units.
Enclosure Panels can provide an aesthetically pleas-
ing alternative to expensive fencing. Additionally, for
proper head pressure control, YORK recommends the
use of :
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
fl
ow is permitted
through generously sized louvered openings. This option
is applicable for any outdoor design ambient temperature
up to 115 °F (46 °C) (
Factory-Mounted
).
SOUND REDUCTION OPTIONS
SOUND ATTENUATION –
One or both of the fol-
lowing sound attenuation options are recommended for
residential or other similar sound-sensitive locations.
Louvered Panels can be ordered for winter applications
where wind gusts may exceed
fi
ve miles per hour. The
following types of enclosure options are available:
Summary of Contents for YCAL0019
Page 55: ...FORM 150 67 NM2 209 55 JOHNSON CONTROLS 5 5 ELEMENTARY WIRING DIAGRAM CON T LD12699D...
Page 57: ...FORM 150 67 NM2 209 57 JOHNSON CONTROLS 5 5 ELEMENTARY WIRING DIAGRAM CON T LD12693C...
Page 59: ...FORM 150 67 NM2 209 59 JOHNSON CONTROLS 5 5 ELEMENTARY WIRING DIAGRAM CON T LD 12198...
Page 61: ...FORM 150 67 NM2 209 61 JOHNSON CONTROLS 5 5 LD12702 ELEMENTARY WIRING DIAGRAM CON T...
Page 63: ...FORM 150 67 NM2 209 63 JOHNSON CONTROLS 5 5 LD12696 ELEMENTARY WIRING DIAGRAM CON T...
Page 65: ...FORM 150 67 NM2 209 65 JOHNSON CONTROLS 5 5 CONNECTION WIRING DIAGRAM CON T LD12703B...
Page 67: ...FORM 150 67 NM2 209 67 JOHNSON CONTROLS 5 5 CONNECTION WIRING DIAGRAM CON T LD12697B...
