York YLPA User manual

FORM 150.68-EG1 (0212)
Cooling Capacities: 115 Tons to 170 Tons
Cooling Capacities: 400 kW to 600 kW
Heating Capacities:1390 MBH to 2040 MBH
Heating Capacities: 400 kW to 600 kW
60Hz
HFC-410A
Model YLPAAir-to-Liquid Reversible Scroll Heat Pumps
Style A

JOHNSON CONTROLS2
FORM 150.68-EG1 (0212)
NOMINAL DATA
NOMENCLATURE
YLPA Model 0115SE 0145SE 0170SE
Capacity (TONS) 118 146 167
Capacity (kW) 414 515 587
Capacity (MBH) 1390 1731 2037
Capacity (kW) 412 510 612
(1) At 54/44°F chilled water temperatures and 95°F ambient.
(2) At 104/113°F hot water temperatures and 44°F ambient.
Cooling Mode
(1)
Heating Mode
(2)
YLPA0115SE40XBA
1 2 3 4 5678 9 10 11 12 13 14 15
BASE PRODUCT TYPE NOMINAL CAPACITY UNIT DESIGNATION REFRIGERANT VOLTAGE / STARTER DESIGN / DEVELOPMENT LEVEL
Y: York ####kW S: Standard Unit E: R-410A 40X: 380 / 3 / 60 B: Design Series
L: Scroll
0115 0145 0170
X: Direct on Line A: Development Level
P: Heat Pump
A: All Regions
Introduction
CONTENTS
Introduction.................................................................................................................................................................................................................. 2
Product Description.................................................................................................................................................................................................... 3
Microcomputer Control Center .................................................................................................................................................................................. 4
Accessories and Options ........................................................................................................................................................................................... 5
Refrigerant Flow Block Diagrams.............................................................................................................................................................................. 6
Component Location................................................................................................................................................................................................... 7
Application Data.......................................................................................................................................................................................................... 8
Connection Diagram ................................................................................................................................................................................................. 14
Water Pressure Drop................................................................................................................................................................................................. 15
Ratings ....................................................................................................................................................................................................................... 16
Technical Data ........................................................................................................................................................................................................... 19
Dimensions................................................................................................................................................................................................................ 21

FORM 150.68-EG1 (0212)
3JOHNSON CONTROLS
Product Description
YLPA air-to-liquid reversible heat pumps are completely
factory assembled with all interconnecting refrigerant
piping and wiring ready for field installation. The unit is
pressure tested, evacuated, and fully factory charged
with refrigerant R410Aand oil in each of the independent
refrigerant circuits. After assembly, an operational test is
performedwithwaterflowingthroughtheheatexchanger
to ensure that each refrigerant circuit operates correctly.
The unit structure is manufactured from heavy-gauge,
galvanised steel coated with baked-on powder paint
(Champagne (RAL 7006, Munsell No. 9.8YR4.36/1.2)).
YLPAheatpumpsaredesignedinaccordancewithNFPA
70 (National Electric Code), ASHRAE/ANSI 15 Safety
code for mechanical refrigeration, ASME and rated in
accordance with ARI Standard 550/590.
COMPRESSORS
Theunithassuction-cooled, hermetic scrollcompressors.
High efficiency is achieved through a controlled orbit and
the use of advanced scroll geometry. The compressors
incorporate a compliant scroll design in both the axial
and radial directions. All rotating parts are statically and
dynamically balanced. The compressor motors have
integralprotectionagainst overloadsthatwill automatically
reset. Starting is direct on line, and soft start is available
as an option.
The compressors are switched On and Off by the
unit microprocessor to provide capacity control. Each
compressor is fitted with a crankcase strap heater. All
compressors are mounted on isolator pads to reduce
transmission of vibration to the rest of the unit.
The motor terminal boxes have IP54 weather protection.
REFRIGERANT CIRCUITS
Twoindependentrefrigerantcircuitsare provided oneach
unit. Each circuit uses copper refrigerant pipe formed
on computer controlled bending machines to reduce the
number of brazed joints resulting in a high integrity and
reliable system.
Eachcircuit shallincorporateallcomponentsnecessary for
the designed operation including: a suction accumulator;
a liquid receiver; a four way reversing valve which
changes the direction of the refrigerant flow and the
function of the heat exchanger when switching between
coolingandheatingmodes; service valves; isolation(ball/
angle) valves; pressure relief valves; a high absorption
removable core filter-drier; a sight glass with moisture
indicator; a cooling mode thermal expansion valve and a
heat pump mode thermal expansion valve. Suction lines
shall be covered with closed-cell insulation.
REFRIGERANT TO WATER HEAT EXCHANGER
The2-passdualcircuitshellandtubetypedirectexpansion
(DX)heatexchanger hasrefrigerantin thetubesandliquid
flowing through the baffled shell. The waterside (shell)
design working pressure is 10 barg. The refrigerant side
(tubes)designworkingpressureis45 barg.Therefrigerant
side is protected by pressure relief valve(s).
The heat exchanger is equipped with a heater for frost
protectionto-4°F(belowthistheballvalveinthedischarge
line must be closed) and insulated with flexible closed-
cell foam. Water connection to the heat exchanger is via
victaulic grooved connections. Victaulic groove to flange
converters are available as an option
AMBIENT COILS
The ambient coils are seamless copper tubes, arranged
in staggered rows, mechanically expanded into coated
aluminium fins. Integral sub-cooling is included.
Thecondenserfanshave composite metal/plastic `sickle`
blades integrated into the rotor of an external rotor motor.
They are designed for maximum efficiency and statically
and dynamically balanced for vibration free operation.
They are directly driven by independent motors, and
positioned for vertical air discharge. The fan guards
are constructed from heavy-gauge, corrosion resistant,
coated steel.
TheIP54fanmotorsarethe totally enclosed air-over type
with permanently lubricated double-sealed ball bearings.
POWER AND CONTROL PANELS
All power and controls are contained in an IP 55 cabinet
with hinged and gasket sealed outer doors. The power
panel includes:
• Factory mounted non-fused disconnect switch
with external red/yellow, lockable handle to enable
connection of the unit power supply. The disconnect
switch can be used to isolate the power for servicing
and as a emergency stop.
• Factory mounted compressor contactors and
compressor fuses provide short circuit protection.
Overload protection for each compressor is provided
by inherent motor winding temperature sensing and
a trip module.
• Factory mounted fan contactors and fuses provide
short circuit protection. Overload protection for
each fan is provided by a inherent motor winding
temperature device.
• Factorymountedcontroltransformertoconverttheunit
supply voltage to 115 V - 1 Ø - 60 Hz for the control
system.
• Control supply fuses and connections for a remote
emergency stop device.

JOHNSON CONTROLS4
FORM 150.68-EG1 (0212)
Microcomputer Control Center
The control panel includes:
• A Liquid Crystal Display (two display lines of twenty
characters per line) with Light Emitting Diode
backlighting for easy viewing
• A Colour coded 12-button keypad
• Customer terminal blocks for control inputs and liquid
flow switch.
The microprocessor control includes:
• Automatic control of compressor start/stop,
anticoincidence and anti-recycle timers, pump and
unit alarm contacts. Automatic reset to normal unit
operation after power failure.
• Remote water temperature setpoint reset via analog
input or a pulse width modulated (PWM) input signal
or up to two steps of demand (load) limiting.
• Software is loaded into the microprocessor controller
via a SD card, with programmed setpoints retained in
alithiumbattery backedrealtime clock(RTC)memory.
• Forty character liquid crystal display, with description
availableinfivelanguages(English, French, German,
Spanish or Italian)
Programmable setpoints:
• Chilled liquid temperature setpoint and range
• Hot liquid temperature setpoint and range
• Remote reset temperature range
• Set daily schedule/holiday for start/stop
• Manual override for servicing
• Low ambient cutout
• High ambient cutout (heating only - fixed)
• Low liquid temperature cutout
• Low suction pressure cutout
• High discharge pressure cutout
• Anti-recycle timer (compressor start cycle time)
• Anti-coincident timer (delay compressor starts)
Displayed Data:
• Leaving liquid temperature
• Air coil defrost temperatures
• Low leaving liquid temperature cutout setting
• Low ambient temperature cutout setting
• Ambient air temperature
• Metric or Imperial data
• Discharge and suction pressure cutout settings
• System discharge and suction pressures
• Anti-recycle timer status for each system
• Anti-coincident system start timer condition
• Compressor run status
• No load condition
• Day, date and time
• Daily start/stop times
• Holiday status
• Automatic or manual system lead/lag control
• Lead system definition
• Compressor starts & operating hours (each
compressor)
• Status of evaporator heater and fan operation
• Run permissive status
• Number of compressors running
• Mode solenoid valve status
• Load & unload timer status
• Liquid pump status
System Safeties:
• Cause individual compressors to perform auto shut
down and require manual reset in the event of 3 trips
in a 90-minute time period
• High discharge pressure
• Low suction pressure
• High-pressure switches
• Motor protector
Unit Safeties:
They are automatic reset and cause compressor to shut
down
• Low leaving chilled liquid temperature
• Under voltage
• Loss of liquid flow (through flow switch)
For each system a common alarm contact for:
• Low leaving chilled liquid temperature
• Low voltage
• Low battery
• High discharge pressure (per system)
• Low suction pressure (per system)
• Compressor motor protection

FORM 150.68-EG1 (0212)
5JOHNSON CONTROLS
Accessories and Options
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 3R 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)
CHICAGO CODE RELIEF VALVES - Unit willbeprovided
with relief valves to meet Chicago code requirements.
(Factory-Mounted)
NEOPRENE PADS ISOLATORS - Recommended for
normal installations (Field mounted)
1” SPRING ISOLATORS - Level adjustable, spring and
cage type isolators for mounting under the unit base rails
(Field mounted).
2” SPRING ISOLATORS - Restrained Spring-Flex
Mountings incorporating a rugged welded steel housing
with vertical and horizontal limit stops. (Field mounted).
FLANGE KIT - Provides contractor with the couplings
best suited to tie into the chilled water piping. All flanges
are PN10.
SINGLE-POINT SUPPLY TERMINAL BLOCK - Includes
enclosure, terminal-block and interconnecting wiring to
the compressors. Separate external protection must be
supplied, by others, in the incoming compressor-power
wiring.(Donotinclude this option ifeithertheSingle-Point
Non-Fused Disconnect Switch or Single-Point Circuit
Breaker options have been included.)
SINGLE-POINT CIRCUIT BREAKER - A 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. (This option
includes the Single-Point Power connection.)

JOHNSON CONTROLS6
FORM 150.68-EG1 (0212)
Refrigerant Flow Block Diagrams
COOLING MODE
Lowpressureliquid refrigerantenterstheheat exchanger andisevaporated and superheatedbythe heat energyabsorbed
from the chilled liquid. Low pressure vapor enters the compressor, via the four-way reversing valve and accumulator,
where pressure and superheat are increased. The high pressure vapor is fed to the ambient coils and fans - via the four
way reversing valve which changes the direction of the refrigerant flow and the function of the heat exchanger to cooling
mode - where heat is removed. The fully condensed and subcooled liquid passes through the expansion valve (cooling)
where pressure is reduced and further cooling takes place before returning to the heat exchanger.
HEATING MODE
Liquid refrigerant enters the ambient coil and is fully evaporated and superheated by the energy absorbed from the ambient
air. Low-pressure superheated refrigerant vapor passes through the four-way reversing valve - which changes the direction
of the refrigerant flow and the function of the heat exchanger to heating mode - and the accumulator and enters the
compressor, wherepressure andsuperheat areincreased. High-pressure superheatedrefrigerant vaporenters therefrigerant
to water plate heat exchanger where heat is rejected to the water. The high-pressure liquid refrigerant, leaving the heat
exchanger passes through the liquid receiver and enters thermostatic expansion valve (heating) where the refrigerant and
subsequently cooled before returning to the ambient coil.
Defrost Operation
When ice builds up on the ambient coils defrost is initiated by operating the machine in a cooling mode. Each of the two
refrigerant circuits will be defrosted one at a time. When defrost is operative the circuit operating in heating mode is in balance
with the circuit operating in defrost (cooling). Therefore, heat energy is not removed from the hot water system.
Ambient Coils
(Condenser)
Refrigerant flow
Compressors Heat Exchanger
(Evaporator)
4-way valve
Accumulator
Receiver
TXV
(heating) TXV
(cooling)
Ambient Coils
(Evaporator)
Refrigerant flow
Compressors Heat Exchanger
(Condenser)
4-way valve
Accumulator
Receiver
iv
er
R
TXV
(heating) TXV
(cooling)

FORM 150.68-EG1 (0212)
7JOHNSON CONTROLS
Component Location
1
2
3
8
5
46
7
1Power Panel 5Heat Exchanger
2Non-Fused Disconnect Switch 6Suction Accumulator
3Control Panel 7Ambient Coils
4Compressors 8Fans
WEIGHTS AND WEIGHT DISTRIBUTION
The weights and weight distribution are given below:
Model Shipping Operating R1 R2 R3 R4 L1 L2 L3 L4
0115SE 9811 10472 1864 1026 1414 2178 1822 2168
0145SE 11243 11904 1021 1471 1024 1356 1595 2191 1541 1705
0170SE 12124 13447 1068 1545 1642 1279 1595 2257 2479 1582
Weight (lbs)
Point Weight (lbs)
R1
R2
R3
R4
L1
L2
L3
L4
Control Panel

JOHNSON CONTROLS8
FORM 150.68-EG1 (0212)
Application Data
LOCATION REQUIREMENTS
Toachieve optimumperformanceand trouble-freeservice,
it is essential that the proposed installation site meet with
the location and space requirements for the model being
installed.
The clearances recommended are nominal for the
safe and efficient operation and maintenance of the
unit and power and control panels. Local Health and
safety regulations, or practical considerations for service
replacement of large components, may require larger
clearances than those given in this manual.
OUTDOOR INSTALLATIONS
The units can be installed at ground level on a suitable at
levelfoundationeasilycapable of supportingtheweightof
theunit,orona suitable rooftop location. Inbothcasesan
adequate supply of air is required.Avoid locations where
the sound output and air discharge from the unit may be
objectionable.
The location should be selected for minimum sun
exposureandawayfromboilerflues and other sources of
airborne chemicals that could attack the condenser coils
and steel parts of the unit.
If located in an area accessible to unauthorized persons,
steps must be taken to prevent access to the unit by
means of a protective fence. This will help to prevent the
possibility of vandalism, accidental damage, or possible
harm caused by unauthorized removal of protective
guardsoropeningpanels to exposerotatingorelectrically
live components.
For ground level locations, the unit must be installed
on a suitable flat and level concrete base that extends
to fully support the two side channels of the unit base
frame.Aone-piececoncreteslab,withfootingsextending
below the frost line is recommended. To avoid noise and
vibration transmission, the unit should not be secured to
the building foundation.
On rooftop locations, choose a place with adequate
structural strength to safely support the entire operating
weight of the unit and service personnel. The unit can
be mounted on a concrete slab, similar to ground floor
locations, or on steel channels of suitable strength. The
channels should be spaced with the same centres as
the unit side and front base rails. This will allow vibration
isolatorstobefittedifrequired.Isolators arerecommended
for rooftop locations.
LOCATION CLEARANCES
Adequate clearances around the unit(s) are required
for the unrestricted air-flow for the ambient coils and to
preventre-circulationofdischargeairbackontothecoils.
Ifclearancesgivenarenotmaintained,air-flowrestriction
or re-circulation will cause a loss of unit performance, an
increase in power consumption, and may cause the unit
to malfunction. Consideration should also be given to the
possibility of down drafts, caused by adjacent buildings,
which may cause re-circulation or uneven unit air-flow.
Forlocationswheresignificantcrosswindsareexpected,
such as exposed roof tops, an enclosure of solid or
louvre type is recommended to prevent wind turbulence
interfering with the unit air-flow.
When units are installed in an enclosure, the enclosure
height should not exceed the height of the unit on more
than one side. Where accumulation of snow is likely,
additionalheightmustbeprovidedundertheunittoensure
normal air-flow to the unit.
Refertothetable below andthediagramson the following
page for location clearances.
0115SE 0145SE 0170SE
A47 47 47
B32 32 32
C32 39 47
D55 55 55
A47 47 47
B32 32 32
C32 39 47
D106 126 126
E55 55 55
A47 47 47
B32 32 32
C32 39 47
D91 118 126
E55 55 55
A47 47 47
B47 47 47
C32 32 32
D32 39 47
E67 75 83
A47 47 47
B47 47 47
C32 32 32
D32 32 32
E55 55 55
YLPA
Arrangement
A5
Louvres on
2 walls
Dim.
(in)
Arrangement
A1
Solid Walls
Arrangement
A2
Solid Walls
Arrangement
A3
Louvres on
2 walls
Arrangement
A4
Solid Walls

FORM 150.68-EG1 (0212)
9JOHNSON CONTROLS
A1
A
B
C
D
E
A1
C
C
D
D
E
A
B
C
D
A1
A4
A
A
B
B
A2
A3
A5
A
B
C
DE
E

JOHNSON CONTROLS10
FORM 150.68-EG1 (0212)
INSTALLATION OF VIBRATION ISOLATORS
Anoptionalsetof vibration isolatorscanbesupplied loose
with each unit.
PIPEWORK CONNECTION
The following piping recommendations are intended to
ensure satisfactory operation of the unit. Failure to follow
these recommendations could cause damage to the unit,
or loss of performance, and may invalidate the warranty.
A flow switch must be installed in the customer pipework
at the outlet of the heat exchanger as shown in the
arrangement diagrams, and wired back to the control
panel using screened cable. This is to prevent damage
to the heat exchanger caused by inadequate liquid flow.
To prevent turbulent flow, there must be straightpipework
either side of the flow switch equal in length to at least 5
times the diameter of the pipe.
The flow switches used must have gold plated contacts
for low voltage/current operation
Alternatively, a differential pressure switch fitted across
an orifice plate may be used, preferably of the high/low
limit type.
Theliquidpumps installed inthepipeworksystems should
dischargedirectlyintotheunit heat exchanger sections of
thesystem.The pumpsrequireanauto-starter (by others)
to be wired to the control panel.
Pipework and fittings must be separately supported to
prevent any loading on the heat exchanger(s). Flexible
connections are recommended which will also minimize
transmission of vibrations to the building. Flexible
connections must be used if the unit is mounted on anti-
vibration mounts as some movement of the unit can be
expected in normal operation.
Pipework and fittings immediately next to the heat
exchanger(s) should be readily demountable to enable
cleaning prior to operation, and to facilitate visual
inspection of the exchanger nozzles.
Each heat exchanger must be protected by a strainer,
preferably of 20 mesh, fitted as close as possible to the
liquidinletconnection,andprovided with a means of local
isolation.
The heat exchanger(s) must not be exposed to flushing
velocities or debris released during flushing. It is
recommended that a suitably sized by-pass and valve
arrangementbeinstalledtoallow flushing of the pipework
system. The by-pass can be used during maintenance to
isolate the heat exchanger(s) without disrupting flow to
other units.
Thermometer and pressure gauge connections should
be provided on the inlet and outlet connections of each
heat exchanger.
Drain and air vent connections should be provided at all
low and high points in the pipework to permit drainage of
the system, and to vent any air in the pipes.
Liquid systems at risk of freezing, due to low ambient
temperatures, should be protected using insulation and
heater tape and/or a suitable glycol solution. The liquid
pumps must also be used to ensure liquid is circulated
when the ambient temperature approaches freezing
point. Insulation should also be installed around the heat
exchanger nozzles.
Heater tape under the insulation is recommended,
supplied independantly and controlled by an ambient
temperature thermostat set to switch on at approximately
4ºF above the freezing temperature of the chilled liquid.
The heat exchanger is protected by a heater mat placed
under the insulation, which are powered from the unit
control system power supply. During cold weather when
there is a risk of freezing, chiller power should be left
switched on to provide the freeze protection function
unless the liquid systems have been drained.
Application Data - continued

FORM 150.68-EG1 (0212)
11JOHNSON CONTROLS
PIPEWORK ARRANGEMENT
The following are suggested pipework arrangements for
single unit installations. For multiple unit installations,
each unit should be piped as shown. These are
recommendations of the Building Services Research
Association.
Isolating Valve – Normally Closed
Flow Regulating Valve
Strainer
Pressure Tapping
Air vent
Flow Switch
Isolating Valve – Normally Open
CONNECTION TYPES AND SIZES
Standardpipeworkconnections areoftheVictaulicgroove
type.
For connection sizes relevant to individual models refer
to the physical data tables in this manual.
WATER TREATMENT
The unit performance given in the Design Guide is based
on a fouling factor of 0.0001 ft²hr°F/Btu. Dirt, scale,
greaseandcertaintypesof water treatment willadversely
affect the heat exchanger surfaces and therefore unit
performance. Foreign matter in the water system(s) can
increase the pressure drop, reducing the flow rate and
causing potential damage.
Aerated, brackish or salt water is not recommended for
use in the water systems. JCI recommends that a water
treatment specialist be consulted to determine whether
the proposed water composition will not affect the heat
exchanger materials of carbon steel and copper. The pH
value of the water flowing through the unit must be kept
between 7 and 8.5.
WATER QUALITY REQUIREMENTS
The water used in the unit liquid system must meet the
requirements detailed in the table below:
Water quality should be inspected before unit
installation and regularly during unit operation.
The water quality must meet the limits above. If
parameters are not within limits, the heat
exchanger may leak or have problems within
scale formation.These problems may result in
the unit not operating normally, excessive heat
exchangerpressuredropsandreducednominal
capacities.
REFRIGERANT RELIEF VALVE PIPING
Theheatexchangerisprotectedagainstinternalrefrigerant
overpressurebyrefrigerantreliefvalves.Apressurerelief
valve is mounted on each of the main refrigerant lines
connectingtheevaporatorto the compressors. Forindoor
installations,pressurereliefvalvesshouldbepipedto the
exterior of the building.
The size of any pipework attached to a relief valve must
be of sufficient diameter so as not to cause resistance to
theoperationofthevalve.The internal diameter depends
on the length of pipe required and must be in accordance
with local regulations.
If relief pipework is common to more than one valve its
cross sectional area must be at least the total required by
eachvalve.Valvetypesshould notbemixedon acommon
pipe. Precautions should be taken to ensure that the exit
of relief valves/vent pipe remain clear of obstructions at
all times.
Allowable
Value Corrosion Fouling
pH (25°C) pH 7.0 to 8.5 ■
SO4ppm <100 ■
HCO3/SO4ppm >1.0 ■
Cl ppm <50 ■
PO4ppm <2.0 ■
NH3ppm <0.5 ■
Free Cl ppm <0.5 ■
Fe+++ ppm <0.5 ■
Mn++ ppm <0.05 ■
CO² ppm <10 ■
H²S ppm <50 ■
Temp °C <65 ■■
O content ppm <0.1 ■
Hardness dH 4.8 to 8.5 ■
Item
Unit
Potential Problem

JOHNSON CONTROLS12
FORM 150.68-EG1 (0212)
ELECTRICAL CONNECTION
The following connection recommendations are intended
to ensure safe and satisfactory operation of the unit.
Failure to follow these recommendations could cause
harmtopersons,ordamagetotheunit,andmayinvalidate
the warranty.
No additional controls (relays, etc.) should be mounted in
thecontrolpanel.Powerand control wiring not connected
to the control panel should not be run through the control
panel. If these precautions are not followed it could lead
toariskofelectrocution. In addition, electricalnoisecould
cause malfunctions or damage the unit and its controls.
POWER WIRING
Theseunitsaresuitable for 460V,3-phase,60Hznominal
supplies only.
All electrical wiring should be carried out in accordance
with local regulations. Route properly sized cables to the
cable entries in the bottom of the power panel.
It is the responsibility of the user to install over current
protection devices between the supply conductors and
the power supply terminals on the unit.
To ensure that no eddy currents are set up in the power
panel, the cables forming each 3 phase power supply
must enter via the same cable entry.
All sources of supply to the unit must be taken via a
common point of isolation (not supplied by JCI).
SINGLE POINT POWER SUPPLY WIRING
All models require one field provided 460 V, 3Ø, 60 Hz
+ PE (Protected Earth) supply to the unit with circuit
protection.
Connect the 3-phase supply to the non-fused disconnect
switch located in the power panel using M12 lugs.
Connect the earth wire to the main protective earth
terminal located in the power panel using a M10 lug.
CONTROL CIRCUIT TRANSFORMER
The control circuit transformer providing the 115 V,
1Ø, 50Hz supply to the unit control system is fitted in a
separate enclosure.
REMOTE EMERGENCY STOP DEVICE
Ifrequired,a remote emergencystopdevicemay bewired
intotheunit.Thisdeviceshouldberated at20amps, 115V,
AC-15. The device should be wired into terminals L and
5 in the power panel after removing the factory fitted link.
CONTROL WIRING - VOLTAGE FREE CONTACT
Allwiringtothevoltagefreecontactterminalblockrequires
a supply provided by the customer maximum voltage
115Vac, 24 Vdc.
The customer must take particular care deriving the
supplies for the voltage free terminals with regard to a
common point of isolation. Thus, these circuits when
usedmustbefedviathecommonpointofisolation so the
voltage to these circuits is removed when the common
pointofisolationtotheunitis opened.Thiscommonpoint
of isolation is not supplied by JCI.
It is recommended that the customer wiring to these
terminals uses orange wires. This will ensure that circuits
not switched off by the units supply disconnecting device
are distinguished by colour, so that they can easily be
identifiedas liveevenwhenthe unitdisconnectingdevices
are off. The YORK voltage free contacts are rated at 125
VA.
All inductive devices (relays) switched by the YORK
voltage free contacts must have their coil suppressed
using standard RC suppressors. If these precautions are
not followed, electrical noise could cause malfunctions or
damage to the unit and its controls.
Chilled Liquid Pump Starter
Terminals 23 and 24 close to start the liquid pump. This
contactisclosedifthereisa‘LeavingLiquid Temperature
Cutout’ or any of the compressors are running or the
daily schedule is not calling for a shutdown with the unit
switch on.
The contact must be used to ensure that the pump is
running in the event of a ‘Leaving Liquid Temperature
Cutout’.
Thepumpcontactwillnotclosetorunthepumpiftheunit
has been powered up for less than 30 seconds, or if the
pump has run in the last 30 seconds, to prevent pump
motor overheating.
Run Contacts
Terminals 25 and 26 close to indicate that refrigerant
system 1 is running and terminals 27 and 28 close to
indicate that refrigerant system 2 is running.
Application Data - continued

FORM 150.68-EG1 (0212)
13JOHNSON CONTROLS
Alarm Contacts
Eachrefrigerantsystemhasa voltage-free normally open
contact that will close when control power is applied to
the panel, if no fault conditions are present. When a fault
occurs which locks a system out, or there is a power
failurethecontactopens.To obtainasystemalarm signal,
connect the alarm circuit to terminals 29 and 30 for No. 1
system and terminals 31 and 32 for No. 2 system.
Control Wiring - System Inputs
All wiring to the control terminal block (nominal 30 Vdc)
mustberuninscreenedcable,withthescreen earthed at
the panel end only. Run screened cable separately from
mains cable to avoid electrical noise pick-up.
Thevoltagefreecontactsmustbe suitablefor30 Vdc(gold
contactsrecommended).Ifthevoltagefreecontacts form
part of a relay or contactor, the coil of the device must be
suppressed using a standard RC suppressor. The above
precautions must be taken to avoid electrical noise that
could cause a malfunction or damage to the unit and its
controls.
Flow Switch
A chilled liquid flow switch of suitable type must be
connected to terminals 13 and 14 to provide adequate
protection against loss of liquid flow.
Remote Start/Stop
Connectaremote switch toterminals13and 51 toprovide
remote start/stop control if required.
Remote Mode Selection
Remote mode selection can be accomplished by
connecting a contact between terminals 13 and 50. With
the contact open the unit is in the cooling mode, with the
contact closed the unit is in the heating mode.
Remote Reset of Chilled Liquid Setpoint
The PWM input (terminals 13 and 20) allows reset of
the chilled liquid setpoint by supplying a ‘timed’ contact
closure.
Remote Load Limiting
Load limiting prevents the unit from loading beyond a
desired value. The unit % load limit depends on the
number of compressors on the unit. The load limit inputs
to terminals 13 and 21 work in conjunction with the PWM
input to terminals 13 and 20.
Fan Full Speed Inhibit
To reduce unit noise the fans can be limited to run at a
maximum step of all fans in star (reduced speed) i.e. fan
full speed is inhibited. Connect a customer voltage free
contact to terminals 13 & 15.
EMS Analogue Input
Provides a means of resetting the leaving chilled or hot
liquid temperature from the BAS/EMS. Accepts 4 to 20
mA, 0 to 20 mA, 0 to 10 Vdc or 2-10 Vdc. Connect to
terminal A+ and A-.
Modbus, BACnet MS/TP and N2
Enable communications with building protocol systems
using Modbus, BACnet or N2 protocol. Connect through
standard RS485 port.

JOHNSON CONTROLS14
FORM 150.68-EG1 (0212)
13 13 13 13 13 14 1513 20 21 50 51 A+A-
A+
-XTBC3 -XTBC1
L 5
LK
23 24 25 26 27 28 29 30 31 32 33 34
-XTBC2
ELECTRONIC SECTION
POWER SECTION
ELECTRONIC
SECTION
POWER
SECTION
M
1
M
2
T
US
T
US
A
CT
23 24 25 26 27 28 29 30 31 32 33 34
O
N
NLY
H
Y
G
T
T
L
13 14 13 15 13 20 13 21 13 50 13 51 A+ A-
S
TATUS SYSTE
M
S
TATUS SYSTE
M
1
ALARM STA
T
2 ALARM STA
T
P
START CONT
A
ODE INDICATI
O
V
ERY OPTION O
E
START / STOP
FLOW SWITC
H
D
INHIBIT
N
OPTION ONL
Y
D
FOR HEATIN
G
A
GE LOAD LIMI
T
OR PWM INPU
T
E
RESET SIGNA
L
REMOTE EMERGENCY
STOP DEVICE
CHILLER RUN
S
CHILLER RUN
S
SYSTEM
1
SYSTEM
LIQUID PUM
P
COOLING M
HEAT RECO
V
REMOT
E
FAN SPEE
D
T
WO SPEED FA
N
ECTION CLOSE
D
1ST ST
A
G
E LOAD LIMIT
TEMPERATUR
E
T
MODE SEL
2ND STA
G
ANALOGUE
YLPA CUSTOMER WIRING
Connection Diagram

FORM 150.68-EG1 (0212)
15JOHNSON CONTROLS
Water Pressure Drop
Refrigerant to Water Heat Exchanger Pressure Drop Graph
Pressure Drop (ft H2O)
100
Flow Rate (gpm)
200 300 600
400 1000800
3
5
10
15
20
30
40
50
60
80
0170SE
0115SE
0145SE

JOHNSON CONTROLS16
FORM 150.68-EG1 (0212)
Ratings
PERFORMANCE DATA - COOLING
Rated in accordance withAHRI Standard 550/590 based on sea level altitude, evaporator fouling factor of 0.0001°F-ft²h/
Btu, evaporator temperature drop of 10°F, and 2 pass evaporator configuration.
TONS
COMP
KW
EER TONS
COMP
KW
EER TONS
COMP
KW
EER TONS
COMP
KW
EER TONS
COMP
KW
EER
115 14.6 124.2 101.2 13.0 120.8 106.3 12.1 117.4 111.7 11.2 113.8 117.6 10.4 110.2 123.8 9.6
145 14.8 154.3 126.2 12.9 150.2 132.6 12.0 145.9 139.4 11.2 141.5 146.8 10.4 136.9 154.6 9.6
170 14.2 175.7 150.6 12.3 171.0 158.2 11.5 166.2 166.5 10.7 161.3 175.3 9.9 156.2 184.7 9.1
115 14.6 128.3 102.2 13.3 124.9 107.3 12.4 121.3 112.8 11.5 117.7 118.6 10.7 113.9 124.9 9.9
145 14.8 159.4 127.5 13.2 155.2 133.9 12.3 150.8 140.7 11.5 146.3 148.1 10.6 141.5 155.9 9.8
170 14.2 181.6 152.0 12.6 176.8 159.7 11.8 171.8 168.0 10.9 166.7 176.8 10.1 161.5 186.2 9.4
115 14.6 132.5 103.3 13.6 129.0 108.4 12.7 125.3 113.9 11.8 121.5 119.7 10.9 117.7 126.0 10.1
145 14.8 164.6 128.9 13.5 160.3 135.2 12.6 155.7 142.1 11.7 151.1 149.4 10.9 146.3 157.3 10.1
170 14.2 187.5 153.6 12.9 182.6 161.2 12.1 177.5 169.5 11.2 172.2 178.3 10.4 166.8 187.8 9.6
115 14.6 134.6 103.9 13.8 131.1 108.9 12.8 127.3 114.4 11.9 123.5 120.3 11.1 119.6 126.6 10.2
145 14.8 167.3 129.6 13.7 162.8 135.9 12.8 158.2 142.8 11.9 153.5 150.1 11.0 148.6 158.0 10.2
170 14.2 190.5 154.3 13.1 185.5 162.0 12.2 180.3 170.3 11.3 175.0 179.1 10.5 169.5 188.6 9.7
115 14.6 136.8 104.5 13.9 133.1 109.5 13.0 129.4 115.0 12.1 125.5 120.9 11.2 121.5 127.1 10.4
145 14.8 169.9 130.3 13.8 165.4 136.6 12.9 160.7 143.5 12.0 155.9 150.8 11.2 151.0 158.7 10.3
170 14.2 193.6 155.1 13.2 188.5 162.8 12.3 183.2 171.1 11.5 177.8 179.9 10.7 172.2 189.4 9.9
115 14.6 141.1 105.6 14.2 137.4 110.7 13.3 133.5 116.2 12.3 129.5 122.0 11.5 125.4 128.3 10.6
145 14.8 175.3 131.7 14.1 170.6 138.0 13.2 165.8 144.9 12.3 160.9 152.3 11.4 155.8 160.1 10.6
170 14.2 199.7 156.8 13.5 194.5 164.4 12.6 189.1 172.7 11.7 183.5 181.6 10.9 177.8 191.1 10.1
115 14.6 145.5 106.8 14.5 141.7 111.9 13.6 137.7 117.4 12.6 133.5 123.2 11.7 129.3 129.5 10.8
145 14.8 180.7 133.2 14.4 175.9 139.5 13.5 171.0 146.4 12.6 165.9 153.8 11.7 160.7 161.6 10.8
170 14.2 205.9 158.5 13.8 200.6 166.1 12.9 195.0 174.4 12.0 189.2 183.3 11.1 183.3 192.8 10.3
TONS
COMP
KW
EER TONS
COMP
KW
EER TONS
COMP
KW
EER TONS
COMP
KW
EER
115 14.6 106.4 130.5 8.9 102.5 137.5 8.1 98.4 144.9 7.5 94.3 152.7 6.8
145 14.8 132.2 162.9 8.8 127.4 171.7 8.1 122.5 181.0 7.4 117.4 190.8 6.8
170 14.2 150.9 194.8 8.4 145.5 205.4 7.7 140.0 216.6 7.1 134.2 228.5 6.5
115 14.6 110.0 131.6 9.1 106.0 138.6 8.4 101.9 146.0 7.7 97.6 153.9 7.0
145 14.8 136.7 164.2 9.1 131.8 173.0 8.3 126.7 182.3 7.6 121.5 192.2 7.0
170 14.2 156.0 196.3 8.6 150.5 207.0 7.9 144.8 218.2 7.3 138.9 230.1 6.7
115 14.6 113.7 132.7 9.3 109.6 139.7 8.6 105.4 147.2 7.9 101.0 155.0 7.2
145 14.8 141.3 165.6 9.3 136.2 174.4 8.5 131.0 183.7 7.8 125.6 193.6 7.2
170 14.2 161.2 197.9 8.9 155.5 208.5 8.2 149.6 219.8 7.5 143.6 231.7 6.8
115 14.6 115.5 133.2 9.4 111.4 140.3 8.7 107.1 147.8 8.0 102.7 155.6 7.3
145 14.8 143.6 166.3 9.4 138.4 175.1 8.6 133.1 184.5 7.9 127.7 194.3 7.3
170 14.2 163.9 198.7 9.0 158.1 209.4 8.3 152.1 220.6 7.6 146.0 232.5 6.9
115 14.6 117.4 133.8 9.6 113.2 140.9 8.8 108.9 148.4 8.1 104.4 156.2 7.4
145 14.8 145.9 167.0 9.5 140.7 175.9 8.8 135.3 185.2 8.0 129.8 195.0 7.3
170 14.2 166.5 199.5 9.1 160.6 210.2 8.4 154.6 221.5 7.7 148.4 233.4 7.0
115 14.6 121.1 135.0 9.8 116.8 142.1 9.0 112.4 149.6 8.3 107.9 157.5 7.6
145 14.8 150.6 168.5 9.7 145.2 177.4 9.0 139.7 186.7 8.2 134.1 196.6 7.5
170 14.2 171.8 201.2 9.3 165.8 211.9 8.6 159.6 223.2 7.9 153.3 235.1 7.2
115 14.6 124.9 136.2 10.0 120.5 143.3 9.2 116.0 150.8 8.5 111.3 158.7 7.8
145 14.8 155.3 170.0 10.0 149.8 178.9 9.2 144.2 188.3 8.4 138.4 198.1 7.7
170 14.2 177.3 202.9 9.5 171.1 213.6 8.8 164.7 224.9 8.1 158.2 236.9 7.4
NOTES:
1. COMP kW = Compressor Input Power
2. EER = Heat Pumps EER (includes power from compressors, fans, and the control panels 0.8 kW)
3. LCWT = Leaving Chilled Water Temperature
4. Ratings are based upon 2.4 GPM evaporator water per ton and 0.0001 fouling factor
5. Rated in accordance with ARI Standard 550/590
46
45
44
42
50
48
46
45
44
42
40
50
48
95
IPLV
AIR TEMPERATURE ON - CONDENSER (°F)
IPLV
105
110
115
AIR TEMPERATURE ON - CONDENSER (°F)
YLPA
MODEL
100
40
90
YLPA
MODEL
75
80
85
LCWT
(°F)
LCWT
(°F)

FORM 150.68-EG1 (0212)
17JOHNSON CONTROLS
PERFORMANCE DATA - PART LOAD
Rated in accordance withAHRI Standard 550/590 based on sea level altitude, evaporator fouling factor of 0.0001°F-ft²h/
Btu, evaporator temperature drop of 10°F, and 2 pass evaporator configuration.
% Displ. Ambient °F TONS COMP KW EER % LOAD EER
100.0 117.7 126.0 95.0 10.1 100.0 10.1
75.0 95.6 81.3 83.8 12.1 75.0 12.9
50.0 67.5 47.2 69.4 15.0 50.0 15.6
25.0 34.7 20.5 55.0 17.4 25.0 17.1
% Displ. Ambient °F TONS COMP KW EER % LOAD EER
100.0 146.3 157.3 95.0 10.1 100.0 10.1
80.0 126.6 112.2 86.9 11.8 75.0 13.1
60.0 100.0 73.6 76.0 13.8 50.0 15.8
40.0 68.5 44.1 63.1 16.2 25.0 17.4
20.0 34.5 20.2 55.0 17.5
% Displ. Ambient °F TONS COMP KW EER % LOAD EER
100.0 166.8 187.8 95.0 9.6 100.0 9.6
83.3 147.8 142.0 88.2 10.9 75.0 12.4
66.7 126.8 101.4 80.6 12.5 50.0 15.2
50.0 98.4 68.2 70.4 14.1 25.0 16.3
33.3 66.3 41.9 58.8 16.3
16.7 32.8 20.1 55.0 16.7
IPLV: 14.2
YLPA 0115 SE
YLPA 0145 SE
YLPA 0170 SE
YLPA 0115 SE
IPLV: 14.6
YLPA 0145 SE
IPLV: 14.8
YLPA 0170 SE

JOHNSON CONTROLS18
FORM 150.68-EG1 (0212)
PERFORMANCE DATA - HEATING
Rated in accordance withAHRI Standard 550/590 based on sea level altitude, evaporator fouling factor of 0.0001°F-ft²h/
Btu, evaporator temperature drop of 10°F, and 2 pass evaporator configuration.
MBH
COMP
KW
COP MBH
COMP
KW
COP MBH
COMP
KW
COP MBH
COMP
KW
COP
115 1419.5 118.8 3.5 1501.9 118.8 3.7 1567.0 118.9 3.9 1632.0 118.9 4.0
145 1768.2 146.9 3.5 1871.0 147.0 3.7 1952.0 147.0 3.9 2033.0 147.0 4.1
170 2081.1 176.3 3.5 2202.0 176.4 3.7 2297.3 176.5 3.8 2392.7 176.5 4.0
115 1411.1 125.3 3.3 1494.4 125.5 3.5 1561.1 125.6 3.6 1627.7 125.7 3.8
145 1757.8 154.9 3.3 1861.6 155.2 3.5 1944.6 155.3 3.7 2027.6 155.4 3.8
170 2068.8 186.0 3.3 2191.0 186.3 3.4 2288.7 186.4 3.6 2386.3 186.6 3.7
115 1402.7 131.8 3.1 1486.9 132.1 3.3 1555.1 132.3 3.4 1623.4 132.5 3.6
145 1747.4 163.0 3.1 1852.3 163.4 3.3 1937.2 163.6 3.5 2022.2 163.8 3.6
170 2056.5 195.7 3.1 2180.0 196.2 3.3 2280.0 196.4 3.4 2380.0 196.7 3.5
115 1394.4 138.3 3.0 1479.4 138.8 3.1 1549.2 139.0 3.3 1619.0 139.3 3.4
145 1736.9 171.0 3.0 1842.9 171.6 3.1 1929.9 171.9 3.3 2016.8 172.2 3.4
170 2044.3 205.3 2.9 2169.0 206.0 3.1 2271.3 206.4 3.2 2373.7 206.7 3.4
115 1389.3 142.2 2.9 1474.9 142.8 3.0 1545.7 143.1 3.2 1616.4 143.3 3.3
145 1730.7 175.9 2.9 1837.3 176.5 3.0 1925.4 176.9 3.2 2013.6 177.2 3.3
170 2036.9 211.1 2.8 2162.4 211.9 3.0 2266.1 212.3 3.1 2369.9 212.8 3.3
115 1386.0 144.8 2.8 1471.9 145.4 3.0 1543.3 145.7 3.1 1614.7 146.0 3.2
145 1726.5 179.1 2.8 1833.6 179.8 3.0 1922.5 180.2 3.1 2011.4 180.6 3.3
170 2032.0 215.0 2.8 2158.0 215.9 2.9 2262.7 216.3 3.1 2367.3 216.8 3.2
115 1375.9 151.5 2.7 1464.4 152.1 2.8 1537.4 152.5 3.0 1610.4 152.8 3.1
145 1713.9 187.3 2.7 1824.2 188.0 2.8 1915.1 188.5 3.0 2006.0 189.0 3.1
170 2017.2 224.8 2.6 2147.0 225.8 2.8 2254.0 226.3 2.9 2361.0 226.9 3.0
115 1364.2 160.8 2.5 1453.7 161.6 2.6 1527.5 161.8 2.8 1601.4 162.1 2.9
145 1699.4 198.8 2.5 1810.8 199.8 2.7 1902.8 200.1 2.8 1994.8 200.4 2.9
170 2000.1 238.6 2.5 2131.3 239.9 2.6 2239.5 240.2 2.7 2347.8 240.6 2.9
115 1352.6 170.1 2.3 1442.9 171.1 2.5 1517.6 171.2 2.6 1592.3 171.3 2.7
145 1684.9 210.3 2.3 1797.5 211.5 2.5 1890.5 211.7 2.6 1983.5 211.8 2.7
170 1983.0 252.4 2.3 2115.5 254.0 2.4 2225.0 254.1 2.6 2334.5 254.3 2.7
NOTES:
1. COMP kW = Compressor Input Power
2. COP = Heat Pumps COP (includes power from compressors, fans, and the control panels 0.8 kW)
3. LHWT = Leaving Hot Water Temperature
120
125
130
95
100
105
110
113
115
LHWT
(°F)
YLPA
MODEL
AIR TEMPERATURE ON - CONDENSER (°F)
44
50
55
60
Ratings - continued

FORM 150.68-EG1 (0212)
19JOHNSON CONTROLS
Technical Data
OPERATING LIMTATIONS
PHYSICAL DATA
Min. Max. Min. Max. Min. Max.
Liquid Outlet Temperature (Water) °F
Liquid Outlet Temperature Range (T) °F
Air Temperature - Standard Unit °F
Liquid Outlet Temperature (Water) °F
Liquid Outlet Temperature Range (T) °F
Air Temperature - Standard Unit °F
gpm
181 700 181 700 200 850
ftH
2
O
5.4 43.0 5.4 43.0 3.4 55.4
psi
psi
V
(1) Unit may operate unloaded up to 125ºFdepending on model size and site conditions.
(2) Tolerance +/-10%
Power Supply Voltage
(2)
Heating
Mode
Maximum Refrigerant Side Pressure
Heat Exchanger Flow Rate
Maximum Water Side Pressure
Heat Exchanger Presssure Drop
14 to 95
150
650
200V 3Ø, 60Hz (nominal)
230V 3Ø, 60Hz (nominal)
380V 3Ø, 60Hz (nominal)
460V 3Ø, 60Hz (nominal)
575V 3Ø, 60Hz (nominal)
6 to 15
0170SE
0145SE
0115SE
95 to 131
YLPA
39 to 59
6 to 15
Cooling
Mode
32 to 115
(1)
0115SE 0145SE 0170SE
Number of refrigerant circuits
Refrigerant Charge
(1)
System 1 / System 2 lb 130 / 137 181 / 132 181 / 181
Oil Charge System 1 / System 2 lb 24.2 / 24.2 37.4 / 24.2 37.4 / 37.4
Number of compressors 2 / 2 3 / 2 3 / 3
Type
Number
Type
Water Volume l 600
Water Connections inch
Number of Fans (circuit 1 / circuit 2) 4 / 4 6 / 4 6 / 6
Total Air Flow - Standard Models
m
3
/s 47 58 70
Length inch 194.4 230.5 274.4
Width inch 88.4 88.4 88.4
Height inch 94.1 94.1 94.1
Shipping Weight lb 9811 11243 12124
Operating Weight lb 10472 11904 13447
(1) Liquid sub-cooling measured at the liquid line should be between 47.3 and 52.0°F at circuit full load.
Sub-cooling is determined by the level of refrigerant charge in each system
Ambient Coils Fans
Dimensions
Basic Unit Weight
YLPA
Compressor
Refrigerant to Liquid
Heat Exchanger
8
2
Scroll
1
Shell and Tubes
300

JOHNSON CONTROLS20
FORM 150.68-EG1 (0212)
ELECTRICAL DATA
SOUND DATA
0115SE 0145SE 0170SE
Unit Power Supply V - Ø - Hz 460 - 3 - 60 460 - 3 - 60 460 - 3 - 60
Voltage Limits (V) 414 - 506 414 - 506 414 - 506
Min. Circuit Ampacity (A) 264 326 487
Max. Dual Element Fuse Size (A) 300 350 600
Max. Circuit Breaker Size (A) 300 350 600
Number of Compressors (System 1 / System 2) 2 / 2 3 / 2 3 / 3
Compressor RLA (each compressor) (A) 54.5 54.5 54.5
Compressor LRA (each compressor) (A) 310 310 310
Compressor Heater Supply V - Ø - Hz 115 - 1 -60 115 - 1 -60 115 - 1 -60
Compressor Heater Load (W) 600 750 900
Number of Fans (System 1 / System 2) 4 / 4 6 / 4 6 / 6
Fan FLA (each fan) (A) 444
Fan LRA (each fan) (A) 19 19 19
Evaporator Heater Supply V - Ø - Hz 115 - 1 60 115 - 1 60 115 - 1 60
Evaporator Heater Load (W) 280 280 280
YLPA
dB(A)
YLPA0115SE 98
YLPA0145SE 99
YLPA0170SE 100
YLPA0115SE 97
YLPA0145SE 98
YLPA0170SE 99
Base Unit
incl. Acoustic
Blankets
YLPA Model
Sound Power
Technical Data - continued