Compressor, Piping, Evaporator Options - York YCAL Series Installation Operation & Maintenance

FORM 150.66-NM3
ISSUE DATE: 09/25/2020
Discharge Pressure Transducers and Read-
out Capability
The addition of pressure transducers allows models to
sense and display discharge pressure. This is recom-
mended for brine chilling applications. (This option
is included with either the low or high ambient kits)
(Factory-Mounted).
Suction Pressure Transducers
Permits unit to sense and display suction pressure. This
capability is standard on YCAL0041-0071 models.
Motor Current Module
Capable of monitoring compressor motor current. Pro-
vides extra protection against compressor reverse rota-
tion, phase-loss and phase imbalance. Option consists
of one module per electrical system (Factory-Mount-
ed).
Optiview Remote Control Panel
Graphical interface panel to remotely control and mon-
itor 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 par-
allel based on mixed liquid temperature (interconnect-
ing wiring by others). (Only one of following options
can be offered on a unit at a time: BAS, Remote Con-
trol 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 YCAL0041 - 0071 models. Op-
tion includes resized thermal expansion valve (Facto-
ry-Mounted).
Chicago Code Relief Valves
Unit will be provided with relief valves to meet Chi-
cago 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 compli-
ance with ASHRAE 15 (Factory-Mounted).
JOHNSON CONTROLS
SECTION 2 - PRODUCT DESCRIPTION
Hot Gas By-Pass
Permits continuous, stable operation at capacities be-
low the minimum step of compressor unloading to as
low as 5% capacity (depending on both the unit and
operating conditions) by introducing an artificial load
on the cooler. Hot gas by-pass is installed on only re-
frigerant system #1 on two-circuited units (Factory-
Mounted).
DX Cooler 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. flanges are
included on the DX cooler nozzles (Factory-Mount-
ed). The companion flanges will be field-supplied by
others.
Flanges (Victaulic Type)
Consists of two (2) Flange adapters for grooved end
pipe (standard 150 psi [10.5 bar] cooler).
Flow Switch
The flow 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 hori-
zontal 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
Alternative to an above mentioned flow switch. Pre-
tempco model DPS300AP40PF-82582-5 (300 psi max.
working pressure), SPDT 5 amp 125/250 VAC switch,
Range 0 to 40 PSID, deadband 0.5 to 0.8 psi, with
1/4 in. NPTE Pressure Connections.
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