York YCUL0045E Owner's manual

Standard, Glycol & Metric Models, Combined
380-415/5
MODELS ONLY
INSTALLATION, OPERATION, MAINTENANCE
AIR-COOLED CONDENSING UNITS
HERMETIC SCROLL
Supersedes 150.63-NM8 (209) Form 150.63-NM8 (1020)
035-22319-000
YCUL0045E_ - YCUL0275E_
R22 & HFC - 407C
STYLE C
(50 Hz.)
WITH IPU II AND I/O BOARDS

JOHNSON CONTROLS
2
FORM 150.63-NM8 (1020)
This equipment is a relatively complicated apparatus.
During installation, operation, maintenance or service,
individuals may be exposed to certain components or
conditions including, but not limited to: refrigerants,
oils, materials under pressure, rotating components, and
both high and low voltage. Each of these items has the
potential, if misused or handled improperly, to cause
bodily injury or death. It is the obligation and respon-
sibility of operating/service personnel to identify and
recognize these inherent hazards, protect themselves,
and proceed safely in completing their tasks. Failure
to comply with any of these requirements could result
in serious damage to the equipment and the property in
IMPORTANT!
READ BEFORE PROCEEDING!
GENERAL SAFETY GUIDELINES
which it is situated, as well as severe personal injury or
death to themselves and people at the site.
This document is intended for use by owner-authorized
operating/service personnel. It is expected that this
individual possesses independent training that will en-
able them to perform their assigned tasks properly and
safely. It is essential that, prior to performing any task
on this equipment, this individual will have read and
understood this document and any referenced materials.
This individual will also be familiar with and comply
with all applicable governmental standards and regula-
tions pertaining to the task in question.
SAFETY SYMBOLS
The following symbols are used in this document to alert the reader to areas of potential hazard:
CAUTION identies a hazard which
could lead to damage to the machine,
damage to other equipment and/or
environmental pollution. Usually an
instruction will be given, together with
a brief explanation.
NOTE is used to highlight additional
information which may be helpful to
you.
DANGER indicates an imminently
hazardous situation which, if not
avoided, will result in death or seri-
ous injury.
WARNING indicates a potentially
hazardous situation which, if not
avoided, could result in death or seri-
ous injury.
External wiring, unless specied as an optional connection in the manufacturer’s product
line, is NOT to be connected inside the micro panel cabinet. Devices such as relays, switches,
transducers and controls may NOT be installed inside the micro panel. NO external wiring
is allowed to be run through the micro panel. All wiring must be in accordance with John-
son Controls published specications and must be performed ONLY by qualied Johnson
Controls personnel. Johnson Controls will not be responsible for damages/problems result-
ing from improper connections to the controls or application of improper control signals.
Failure to follow this will void the manufacturer’s warranty and cause serious damage to
property or injury to persons.

JOHNSON CONTROLS 3
FORM 150.63-NM8 (1020)
3
CHANGEABILITY OF THIS DOCUMENT
In complying with Johnson Controls’ policy for con-
tinuous product improvement, the information con-
tained in this document is subject to change without
notice. Johnson Controls makes no commitment to
update or provide current information automatically
to the manual or product owner. Updated manuals, if
applicable, can be obtained by contacting the nearest
Johnson Controls Service office or accessing the John-
son Controls Knowledge Exchange website at https://
docs.johnsoncontrols.com/chillers/.
It is the responsibility of rigging, lifting, and operating/
service personnel to verify the applicability of these
documents to the equipment. If there is any question
regarding the applicability of these documents, rig-
ging, lifting, and operating/service personnel should
verify whether the equipment has been modified and
if current literature is available from the owner of the
equipment prior to performing any work on the chiller.
REVISION NOTES
Revisions made to this document are indicated in the following table. These revisions are to technical information,
and any other changes in spelling, grammar, or formatting are not included.
AFFECTED PAGES DESCRIPTION
3 Conditioned Based Maintenance program information added
CONDITIONED BASED MAINTENANCE
Traditional chiller maintenance is based upon assumed
and generalized conditions. In lieu of the traditional
maintenance program, a Johnson Controls YORK
Conditioned Based Maintenance (CBM) program can
be substituted. This CBM service plan is built around
the specific needs for the chiller, operating conditions,
and annualized impact realized by the chiller. Your lo-
cal Johnson Controls Branch can propose a customized
Planned Service Agreement that leverages real time
and historical data, delivering performance reporting,
corrective actions required and data enabled guidance
for optimal operation and lifecycle assurance. The pro-
gram will include fault detection diagnostics, operation
code statistics, performance based algorithms and ad-
vance rules based rationale delivered by the Johnson
Controls Connected Equipment Portal.

JOHNSON CONTROLS
4
FORM 150.63-NM8 (1020)
PRODUCT IDENTIFICATION NUMBER (PIN)............................................................................................10
REFRIGERANT FLOW DIAGRAM .............................................................................................................11
SPECIFICATIONS .......................................................................................................................................12
SECTION 1 - INSTALLATION .........................................................................................................13
CONTROL WIRING.....................................................................................................................................25
ELECTRICAL DATA....................................................................................................................................28
PHYSICAL DATA (ENGLISH) .....................................................................................................................34
DIMENSIONS AND CLEARANCES............................................................................................................36
WEIGHT DISTRIBUTION ............................................................................................................................46
ISOLATOR SELECTIONS...........................................................................................................................48
PRE-STARTUP CHECKLIST ......................................................................................................................53
INITIAL START-UP......................................................................................................................................54
SECTION 2 - UNIT CONTROLS .....................................................................................................56
“STATUS” KEY ...........................................................................................................................................58
DISPLAY/PRINT KEYS ...............................................................................................................................64
“ENTRY” KEYS...........................................................................................................................................72
“SETPOINTS” KEYS ..................................................................................................................................73
“UNIT” KEYS .............................................................................................................................................80
UNIT OPERATION.......................................................................................................................................85
SECTION 3 - SERVICE AND TROUBLESHOOTING ...................................................................96
SERVICE MODE – CHILLER CONFIGURATION.......................................................................................97
OPTIONAL PRINTER INSTALLATION.....................................................................................................105
TROUBLESHOOTING ..............................................................................................................................106
MAINTENANCE ........................................................................................................................................109
ISN CONTROL ..........................................................................................................................................110
SECTION 4 - WIRING DIAGRAMS...............................................................................................114
TABLE OF CONTENTS

JOHNSON CONTROLS 5
FORM 150.63-NM8 (1020)
LIST OF TABLES
TABLE 1 – FITTING EQUIVALENT LENGTHS............................................................................17
TABLE 2 – REFRIGERANT PIPING CHARGES .........................................................................17
TABLE 3 – MISCELLANEOUS LIQUID LINE PRESSURE DROPS ..........................................17
TABLE 4 – REFRIGERANT LINE CONNECTIONS.....................................................................18
TABLE 5 – REFRIGERANT LINE PRESSURE DROPS (ENGLISH) .........................................18
TABLE 6 – REFRIGERANT LINE PRESSURE DROPS (METRIC) ...........................................20
TABLE 7 – DUAL POINT POWER SUPPLY CONNECTIONS....................................................28
TABLE 8 – SINGLE POINT POWER SUPPLY CONNECTIONS................................................30
TABLE 9 – MICROPANEL POWER SUPPLY...............................................................................33
TABLE 10 – VOLTAGES ..................................................................................................................33
TABLE 11 – PHYSICAL DATA (METRIC) .......................................................................................34
TABLE 12 – SETPOINTS ENTRY LIST..........................................................................................54
TABLE 13 – STATUS KEY MESSAGES .........................................................................................63
TABLE 14 – OPERATION DATA......................................................................................................67
TABLE 15 – COOLING SETPOINTS PROGRAMMABLE LIMITS AND DEFAULTS ..................76
TABLE 16 –PROGRAM KEY LIMITS AND DEFAULTS................................................................78
TABLE 17 – SETPOINTS QUICK REFERENCE LIST ..................................................................79
TABLE 18 –UNIT KEYS PROGRAMMING QUICK REFERENCE LIST .....................................84
TABLE 19 – DISCHARGE AIR TEMPERATURE CONTROL FOR 5 AND 6 COMPRESSORS
(7 AND 8 STEPS)..........................................................................................................86
TABLE 20 – DISCHARGE AIR TEMPERATURE CONTROL FOR 4 COMPRESORS (6 STEPS)86
TABLE 21 – DISCHARGE AIR TEMPERATURE CONTROL FOR 3 COMPRESSORS
(SINGLE SYSTEM)......................................................................................................87
TABLE 22 – DISCHARGE AIR TEMPERATURE CONTROL FOR 2 COMPRESSORS
(SINGLE SYSTEM)......................................................................................................87
TABLE 23 –YCUL0045 – YCUL0275 CONDENSER FAN CONTROL USING OUTDOOR
AMBIENT TEMPERATURE AND DISCHARGE PRESSURE...................................91
TABLE 23A – YCUL0045 – YCUL0275 CONDENSER FAN CONTROL USING DISCHARGE
PRESSURE ONLY.......................................................................................................91
TABLE 24 –YCUL0045 - YCUL0275 LOW AMBIENT CONDENSER FAN CONTROL –
DISCHARGE PRESSURE CONTROL.......................................................................92
TABLE 25 –COMPRESSOR OPERATION – LOAD LIMITING....................................................93
TABLE 26 – I/O BOARD DIGITAL INPUTS ....................................................................................98
TABLE 27 – I/O BOARD ANALOG INPUTS ...................................................................................98
TABLE 28 – I/O BOARD DIGITAL OUTPUTS ................................................................................98
TABLE 29 – OUTDOOR AIR SENSORTEMPERATURE/VOLTAGE/RESISTANCE
CORRELATION .........................................................................................................100
TABLE 30 – DISCHARGE AIR TEMP. SENSOR TEMPERATURE/VOLTAGE/
RESISTANCE CORRELATION ................................................................................101

JOHNSON CONTROLS
6
FORM 150.63-NM8 (1020)
TABLE 31 – SUCTION TEMP. SENSOR TEMPERATURE/VOLTAGE/RESISTANCE
CORRELATION ..........................................................................................................102
TABLE 32 – TROUBLESHOOTING ..............................................................................................106
TABLE 33 –ISN RECEIVED DATA............................................................................................... 110
TABLE 34 –ISN TRANSMITTED DATA .......................................................................................110
TABLE 35 – ISN OPERATIONAL AND FAULT CODES .............................................................. 112
LIST OF TABLES (CONT.)

JOHNSON CONTROLS 7
FORM 150.63-NM8 (1020)
LIST OF FIGURES
FIG. 1 – REFRIGERANT FLOW DIAGRAM.................................................................................11
FIG. 2 – SINGLE POINT POWER SUPPLY WIRING ..................................................................23
FIG. 3 – MULTI POINT POWER SUPPLY WIRING.....................................................................23
FIG. 4 – SINGLE POINT POWER SUPPLY WIRING ..................................................................24
FIG. 5 – MULTI POINT POWER SUPPLY WIRING.....................................................................24
FIG. 6 – CTB1 FIELD CONTROL WIRING (CTB1 LOCATED BELOW
MICROPROCESSOR BOARD).......................................................................................25
FIG. 7 – CTB2 POWER PANEL FIELD WIRING .........................................................................26
FIG. 8 – CTB3 POWER PANEL FIELD WIRING ........................................................................26
FIG. 9 – DISCHARGE AIR SENSOR FIELD WIRING.................................................................27
FIG. 10 – OPTIONAL SUCTION TEMPERATURE SENSOR FIELD WIRING............................27
FIG. 11 – DISCHARGE AIR TEMPERATURE CONTROL ............................................................85
FIG. 12 – SUCTION PRESSURE CONTROL.................................................................................88
FIG. 13 – YCUL0045 – YCUL0275 FAN LOCATION (TYPICAL)..................................................91
FIG. 14 – FIELD AND FACTORY ELECTRICAL CONNECTIONSOPTIONAL REMOTE
TEMPERATURE RESET BOARD...................................................................................95
FIG. 15 – I/O BOARD LAYOUT .......................................................................................................99
FIG. 16 – I/O BOARD RELAY CONTACTARCHITECTURE .......................................................104
FIG. 17 – PRINTER TO I/O BOARD ELECTRICAL CONNECTIONS .......................................105
FIG. 18 – ELEMENTARY DIAGRAM, CONTROL CIRCUIT – YCUL0045E_ - YCUL0095E_...114
FIG. 19 – ELEMENTARY DIAGRAM, POWER CIRCUIT – YCUL0045E_ - YCUL0095E_....... 116
FIG. 20 – ELEMENTARY DIAGRAM, MIDDLE MARKET – YCUL0045E_ - YCUL0095E_...... 117
FIG. 21 – CONNECTION DIAGRAM, MIDDLE MARKET – YCUL0045E_ - YCUL0095E_ ....118
FIG. 22 – ELEMENTARY DIAGRAM, CONTROL CIRCUIT - YCUL0121E_ .............................120
FIG. 23 – ELEMENTARY DIAGRAM, POWER CIRCUIT - YCUL0121E_..................................122
FIG. 24 – ELEMENTARY DIAGRAM, MIDDLE MARKET - YCUL0121E_.................................123
FIG. 25 – CONNECTION DIAGRAM, MIDDLE MARKET - YCUL0121E_.................................124
FIG. 26 – ELEMENTARY DIAGRAM, CONTROL CIRCUIT – YCUL0125E_ - YCUL0185E_...126
FIG. 27 – ELEMENTARY DIAGRAM, POWER CIRCUIT – YCUL0125E_ - YCUL0185E_.......128
FIG. 28 – ELEMENTARY DIAGRAM, MIDDLE MARKET – YCUL0125E_ - YCUL0185E_......130
FIG. 29 – CONNECTION DIAGRAM, MIDDLE MARKET – YCUL0125E_ - YCUL0185E_ ......132
FIG. 30 – ELEMENTARY DIAGRAM, CONTROL CIRCUIT – YCUL0211E_ - YCUL0275E_...134
FIG. 31 – ELEMENTARY DIAGRAM, POWER CIRCUIT – YCUL0211E_ - YCUL0275E_ .......136
FIG. 32 – ELEMENTARY DIAGRAM, MIDDLE MARKET – YCUL0211E_ - YCUL0275E_ ......138
FIG. 33 – CONNECTION DIAGRAM, MIDDLE MARKET – YCUL0211E_ - YCUL0275E_ ......140

JOHNSON CONTROLS
8
FORM 150.63-NM8 (1020)
THIS PAGE INTENTIONALLY LEFT BLANK

JOHNSON CONTROLS 9
FORM 150.63-NM8 (1020)
PRODUCT IDENTIFICATION NUMBER (PIN)
BASIC MODEL NUMBER
: High E󰀩ciency : Design Series A
: Engineering
Change
or PIN Level
: R-22
: R-407C
Even Number:
60 HZ Nominal Tons
Odd Number:
50 HZ Nominal kW
: 200 / 3/ 60
: 230 / 3 / 60
: 380 / 3 / 60
: 460 / 3 / 60
: 380-415 / 3 / 50
: 575 / 3 / 60
: Across the Line
YCUL0025EC 50XCA
: YORK
: Chiller
: Air-Cooled
: Condensing
Unit
: Scroll
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
BASE PRODUCT TYPE NOMINAL CAPACITY UNIT DESIGNATOR REFRIGERANT VOLTAGE/STARTER DESIGN/DEVELOPMENT LEVEL
Y 0 # # # E C 1 7 C
C 1 # # # B 2 8 A
A 4 0
U 4 6
5 0
L 5 8
X
U
Condensing
Unit
:380-415/3/50
5 0 C

JOHNSON CONTROLS
10
FORM 150.63-NM8 (1020)
PRODUCT IDENTIFICATION NUMBER (PIN)
EXAMPLES:
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55
X X X X X X X X L X X X X X X X X X X X X X X X X X A X X X X X X X X X X X X X
S D T C A T S R L X P R S 2 5 C X 1 X X X X 3 D W S A R X B X X 4 B X X L X S D
: Aluminum : Copper : Black Fin : Phenolic : TEAO Fan Motors
EVAP. FIELD CONDENSER FIELD CABINET FIELD
: Wire Condenser Headers Only (factory) : Wire (Full Unit) Enc. Panels (factory) : Wire (Full Unit) Enc. Panels (eld) : Wire/Louvered Enc. Panels (factory) : Wire/Louvered Enc. Panels (eld) : Louvered (Cond. Only) Enc. Panels (factory) : Louvered (Cond. Only) Enc. Panels (eld) : Louvered (Full Unit) Enc. Panels (factory) : Louvered (Full Unit) Enc. Panels (eld) : Acoustic Sound Blanket : Low Sound Fans : 1" Deection : Seismic : Neoprene Pads
55 EXTENDED FIELD X B C D E F G H
: 1st Year Parts Only : 1st Year Parts & Labor : 2nd Year Parts Only : 2nd Year Parts & Labor : 5 Year Compressor Parts Only : 5 Year Compressor Parts & Labor Only : 5 Year Units Parts Only : 5 Year Unit Parts & Labor
NOTES: 1. Q :DENOTES SPECIAL / S.Q. 2. # :DENOTES STANDARD 3. X :w/in OPTIONS FIELD, DENOTES NO OPTION SELECTED 4. Agency Files (i.e. U.L. / E.T.L.; CE; ARI; ETC.) will contain info. based on the rst 14 characters only.
: ASME Pressure Vessel Code
38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 X X X X C 1 X B 2 P 3 X X 4 A 5 6 X 7 X 8 B L 1 S N
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 POWER FIELD CONTROLS FIELD COMPRESSOR / PIPING FIELD X X L # # M D H M B A C S D T S S X S B B X F X S B G 1 D B I R X S X B X X L N T C R O X
OPTIONS MODEL NUMBER
MP = Multiple Point SP = Single-Point NF = Non-Fused TB = Terminal Block Ser. = Service Ind. Sys. Brkr. & L. Ext. Handles = Individual System Breaker & Lockable External Handle
: Standard Power Option : MP NF Disconnects : MP Circuit Breakers : SP NF Disconnects : SP TB : SP Circuit Breaker : SP TB w/ Separate System Circuit Breakers : SP NF Disconnect w/ Separate System Circuit Breakers : Control Transformer (factory) : Power Factor Capacitor
: Leaving Supply Temp. : Chicago Code Kit Req’d. : Service Isolation Valves : Both Chicago & Svc. Iso. : Hot Gas By-Pass req’d. (1 circuit) : X : X : X : Crankcase Heater Std.
: Low Ambient Kit (factory) : High Ambient Kit (factory) : Both Low / High Ambient (factory) : BAS/EMS Temp. Reset / O󰀨set : Spanish LCD & Keypad Display : French LCD & Keypad Display : German LCD & Keypad Display : Italian LCD & Keypad Display : Discharge Pressure readout required : Suction Pressure readout required : Discharge & Suction readouts required : N. American Safety Code : No Listing (typically 50 HZ non-CE,non-U.L. : Suction Temp Sensor required : Motor Current Module required : Remote Control Panel required : OptiView Remote Panel

JOHNSON CONTROLS 11
FORM 150.63-NM8 (1020)
LD04284A
REFRIGERANT FLOW DIAGRAM
FIG. 1 – REFRIGERANT FLOW DIAGRAM
2 OR 3 COMPRESSORS PER SYSTEM
OIL EQUALIZING LINE
AIR COOLED CONDENSERS
SERVICE VALVE
OPTIONAL DISCHARGE PRESSURE TRANSDUCER
HIGH PRESSURE CUTOUT SWITCH
SERVICE
VALVE
LOW PRESSURE SWITCH OR
SUCTION PRESSURE TRANSDUCER
DISCHARGE LINE BALL VALVE
LIQUID LINE SERVICE VALVE
LIQUID LINE SOLENOID VALVE
** TXV
SUCTION LINE
BALL VALVE
SIGHT GLASS / MOISTURE INDICATOR
SOLENOID OPERATED HOT GAS BYPASS VALVE
*
YCUL REFRIGERANT FLOW DIAGRAM
NOTE: YCUL0046-0090 HAVE TWO REFRIGERANT SYSTEMS
* HOT GAS OPTION - SYSTEM 1 ONLY
LIQUID LINE FILTER DRIER
EVAP.
AIR FLOW
DISCHARGE AIR
TEMPERATURE SENSOR
OPTIONAL SUCTION TEMP SENSOR
FACTORY PIPING
FIELD PIPING
T
T
**One TXV and Liquid Line Solenoid shown for illustration purposes. Actual refrigerant piping may vary depending on evaporator circuiting.
0125-0275

JOHNSON CONTROLS
12
FORM 150.63-NM8 (1020)
GENERAL
The 53 - 457 kW YCUL0045E - 0275E Condensing
Unit Models are shipped complete from the factory
ready for eld installation.
The unit is pressure-tested, evacuated and given a nitro-
gen holding charge and includes an initial oil charge
(R-22 or HFC-407C refrigerant supplied by others).
After assembly, an operational test is performed to assure
that each control device operates correctly.
The unit structure is heavy-gauge, galvanized steel. This
galvanized steel is coated with baked-on powder paint,
which, when subjected to ASTM B117 500 hour, salt
spray testing, yields a minimum ASTM 1654 rating of
“6”. Units are designed in accordance with NFPA 70
(National Electric Code), ASHRAE/ANSI 15 Safety
code for mechanical refrigeration, and are cETL listed.
All units are produced at an ISO 9000-registered facil-
ity.
COMPRESSORS
The unit has suction-gas cooled, hermetic, scroll com-
pressors. The YCUL0045-0275 compressors incorporate
a compliant scroll design in both the axial and radial
direction. All rotating parts of the compressors are
statically and dynamically balanced. A large internal
volume and oil reservoir provides greater liquid toler-
ance. Compressor crankcase heaters are also included
for extra protection against liquid migration.
CONDENSER
Coils – Fin and tube condenser coils of seamless, inter-
nally-enhanced, high-condensing-coecient, corrosion
resistant copper tubes are arranged in staggered rows,
mechanically expanded into aluminum ns. Integral
subcooling is included. The design working pressure
of the coil is 450 PSIG (31 bar).
Fans – The condenser fans are composed of corrosion-
resistant aluminum hub and glass-fiber-reinforced
polypropylene composite blades molded into a low
noise airfoil section. They are designed for maximum
eciency and are statically and dynamically balanced
for vibration free operation. They are directly driven by
independent motors, and positioned for vertical air dis-
charge. The fan guards are constructed of heavy-gauge,
rust-resistant, coated steel. All blades are statically and
dynamically balanced for vibration-free operation.
Motors – The fan motors are Totally Enclosed Air-Over,
squirrel-cage type, current protected. They feature ball
bearings that are double-sealed and permanently lubri-
cated.
REFRIGERANT CIRCUIT
One (YCUL0045-0121) or two (YCUL0125-0275)
independent refrigerant circuits will be nished on each
unit. All unit piping will be copper, with brazed joints.
The liquid line will include a eld connection shuto
valve with charging port located on each condenser
circuit. Suction line connections are provided on each
refrigeration circuit. A lter drier and sight glass are
shipped loose for eld installation on each refrigerant
circuit.
All expansion valves, liquid line solenoid valves,
refrigerant, and refrigerant eld piping are supplied
by others.
SPECIFICATIONS
Specication

JOHNSON CONTROLS 13
FORM 150.63-NM8 (1020)
1
To ensure warranty coverage, this
equipment must be commissioned
and serviced by an authorized John-
son Controls service mechanic or a
qualied service person experienced
in chiller installation. Installation
must comply with all applicable codes,
particularly in regard to electrical wir-
ing and other safety elements such as
relief valves, HP cutout settings, design
working pressures, and ventilation re-
quirements consistent with the amount
and type of refrigerant charge.
Lethal voltages exist within the control
panels. Before servicing, open and tag
all disconnect switches.
INSTALLATION CHECK LIST
The following items, 1 through 5, must be checked
before placing the units in operation.
1. Inspect the unit for shipping damage.
2. Rig unit using spreader bars.
3. Open the unit only after piping is installed and
evacuation in complete.
4. Pipe unit using good piping practice (refer to
ASHRAE handbook).
5. Check to see that the unit is installed and operated
within limitations (Refer to LIMITATIONS).
SECTION 1 - INSTALLATION
The following pages outline detailed procedures to be
followed to install and start-up the unit.
HANDLING
These condensing units are shipped as completely as-
sembled units containing a nitrogen holding charge, but
require eld installation of a liquid line lter drier, TXV,
liquid line solenoid, sight glass, refrigerant, discharge/
return air temperature sensor (if used), and refrigerant
piping to the air handling unit. Care should be taken to
avoid damage due to rough handling.
The unit should be lifted by inserting hooks through the
holes provided in unit base rails. Spreader bars must
be used to avoid crushing the unit frame rails with the
lifting chains. See below.
INSPECTION
Immediately upon receiving the unit, it should be in-
spected for possible damage which may have occurred
during transit. If damage is evident, it should be noted
in the carrier’s freight bill. A written request for in-
spection by the carrier’s agent should be made at once.
See “Instruction” manual, Form 50.15-NM for more
information and details.
LOCATION AND CLEARANCES
The YCUL Condensing Units are designed for outdoor
installation. When selecting a site for installation, be
guided by the following conditions:
1. For outdoor locations of the unit, select a place
having an adequate supply of fresh air for the con-
denser.
2. Avoid locations beneath windows or between
structures where normal operating sounds may be
objectionable.
3. Installation sites may be either on the roof, or at
ground level. (See FOUNDATION)
4. The condenser fans are the propeller-type, and are
not recommended for use with duct work in the
condenser air stream.
5. When it is desirable to surround the unit(s), it is
recommended that the screening be able to pass
the required chiller CFM without exceeding 0.1"
of water external static pressure.
00096 (rig)VIP

JOHNSON CONTROLS
14
FORM 150.63-NM8 (1020)
INSTALLATION
6. Protection against corrosive environments is avail-
able by supplying the units with either copper n,
cured phenolic, or epoxy coating on the condenser
coils. The phenolic or epoxy coils should be of-
fered with any units being installed at the seashore
or where salt spray may hit the unit.
In installations where winter operation is intended and
snow accumulations are expected, additional height must
be provided to ensure normal condenser air ow.
Recommended clearances for units are given in DIMEN-
SIONS. When the available space is less, the unit(s)
must be equipped with the discharge pressure transducer
option to permit high pressure unloading in the event
that the air recirculation was to occur.
FOUNDATION
The unit should be mounted on a at and level founda-
tion, oor, or rooftop capable of supporting the entire
operating weight of the equipment. See PHYSICAL
DATA for operating weight. If the unit is elevated beyond
the normal reach of service personnel, a suitable catwalk
must be capable of supporting service personnel, their
equipment, and the compressors.
GROUND LEVEL LOCATIONS
It is important that the units be installed on a substantial
base that will not settle, causing strain on the refrigerant
lines and resulting in possible leaks. A one-piece con-
crete slab with footers extending below the frost line is
highly recommended. Additionally, the slab should not
be tied to the main building foundation as noises will
telegraph.
Mounting holes (11/16" diameter) are provided in the
steel channel for bolting the unit to its foundation. See
DIMENSIONS.
For ground level installations, precautions should be
taken to protect the unit from tampering by or injury
to unauthorized persons. Screws on access panels will
prevent casual tampering; however, further safety pre-
cautions, such as unit enclosure options, a fenced-in
enclosure, or locking devices on the panels may be advis-
able. Check local authorities for safety regulations.
ROOFTOP LOCATIONS
Choose a spot with adequate structural strength to
safely support the entire weight of the unit and service
personnel. Care must be taken not to damage the roof
during installation. If the roof is “bonded”, consult the
building contractor or architect for special installation
requirements. Roof installations should incorporate the
use of spring-type isolators to minimize the transmission
of vibration into the building structure.
NOISE SENSITIVE LOCATIONS
Eorts should be made to assure that the unit is not
located next to occupied spaces or noise sensitive areas
where noise level would be a problem. The unit noise is
a result of compressor and fan operation. Considerations
should be made utilizing noise levels published in the
YORK Engineering Guide for the specic unit model.
Sound blankets for the compressors and low sound fans
are available.
SPRING ISOLATORS (OPTIONAL)
When ordered, four (4) isolators will be furnished.
Identify the isolator, and locate at the proper mounting
point, and adjust per instructions. See "Isolator Selec-
tion" section beginning on page 48.
COMPRESSOR MOUNTING
The compressors are mounted on four (4) rubber iso-
lators. The mounting bolts should not be loosened or
adjusted at installation of the condensing unit.
ELECTRICAL WIRING
Field Wiring
Power wiring must be provided through a fused discon-
nect switch to the unit terminals (or optional molded dis-
connect switch) in accordance with N.E.C. or local code
requirements. Minimum circuit ampacity and maximum
dual element fuse size are given in the ELECTRICAL
DATA tables.
A 120-1-60, 15 amp source must be supplied for the
control panel through a fused disconnect when a control
panel transformer (optional) is not provided. Refer to
Table 8 and Figures 2 - 5.
See Figures 2 - 5 and unit wiring diagrams for eld and
power wiring connections. Refer to section on UNIT
OPERATION for a detailed description of operation
concerning unit contacts and inputs.
Liquid Line Solenoid Connections
The eld supplied and installed liquid line solenoid
valves should be installed at the evaporator and wired
using 18 AWG minimum wire. Electrical connections
should be made at Terminal Board CTB3 (Terminals
120 and 2, Sys1 and Terminals 220 and 2, Sys2). CTB3
is located on the left side of the power panel. Note that
power for the solenoid coil is 120 VAC. Refer to Figure
8 and unit wiring diagram.

JOHNSON CONTROLS 15
FORM 150.63-NM8 (1020)
1
DISCHARGE AIR SENSOR
The discharge air sensor and associated connector
hardware is factory supplied but must be eld installed.
Field wire must be eld supplied (QUABBIN 930421-
2 or equivalent 2 conductor with shield and drain wire
- 20 AWG 300 V 60°C - polyethylene insulation UV
resistant). Field wiring is connected to pins 8, 5, and
2 of J6 on the I/O Board. Refer to Figure 9 and unit
wiring diagram.
ZONE TERMOSTATS
Field supplied thermostats or dry contacts must be eld
wired when operating the unit in Suction Pressure
Control Mode. The System 1 zone thermostat is eld
wired at CTB1 terminals 13 to 14. On two system units
(YCUL0125 - YCUL0275) System 2 zone thermostat is
eld wired to CTB1 terminals 13 to 16. CTB 1 terminal
is located near the bottom of the micro control panel.
Refer to Figure 6 and unit wiring diagram.
See Air Proving Switch/Remote Start-Stop
Contacts.
Suction Pressure control cannot be used unless the
optional suction transducers are installed on the unit
(standard on YCUL0211 - YCUL0275).
SUCTION TEMPERATURE SENSORS (OPTIONAL)
This is a eld installed option that provides individual
displays of suction line temperature for each system at
the condensing unit. This option performs no control
function, but simply provides the suction line tem-
perature for each refrigerant system as measured at the
condensing unit.
On the I/O Board, the connections are eld wired to J8,
pins 8, 5, & 2 for System 1; J10 pins 8, 5 & 2 for System
2. Refer to Figure 10 and unit wiring diagram.
The sensors should be attached to the suction line with
copper straps, and heat conducting compound should
be used to ensure good heat transfer. Sensors should
be mounted at the 4 or 8 o'clock positions.
Air Proving Switch/Remote Start-Stop Contacts
The air proving switch is eld wired to CTB1 terminals
13 to 14 (sys 1) and 13 to 16 (sys 2) to prevent operation
of the refrigerant circuit when the supply air blower is
not operating.
If separate evaporator blowers are used with respect to
each refrigerant system in the condensing unit, then two
air proving switches must be wired in series across CTB1
terminals 13 - 14 and 13 - 16 (one for each evaporator
blower). Refer to Figure 6 and unit wiring diagram.
When using Zone Thermostats in Suction Pressure con-
trol mode, the air proving switch(s) should be wired in
series with the respective Zone Thermostats.
Remote Start/Stop Contacts
To remotely start and stop the condensing unit, dry con-
tacts can be wired in series with the air proving switch
and CTB1 - terminals 13 to 14 (sys 1) and 13 to 16 (sys
2). Refer to Figure 6 and unit wiring diagram.
Remote Emergency Cuto󰀨
Immediate shutdown of the condensing unit can be
accomplished by opening a eld installed dry contact
to break the electrical circuit between terminals 5 to L
on terminal block CTB2.CTB2 is located in the power
PANEL. THE unit is shipped with a factory jumper in-
stalled between terminals 5 to L, which must be removed
if emergency shutdown contacts are installed. Refer to
Figure 7 and unit wiring diagram.
Evaporator Blower Start Contacts
For constant fan operation: Terminal block CTB2 - ter-
minals 23 to 24, are normally open dry contacts that can
be used to switch eld supplied power to provide a start
signal to the evaporator blower contactor.
Refer to Figure 7 and unit wiring diagram.
Compressor Run Contacts
Contacts are available to monitor “Compressor Run”
status. Normally-open auxiliary dry contacts from each
compressor contactor are wired in parallel with CTB2
- terminals 25 to 26 for system 1, and CTB2 - terminals
27 to 28 for system 2 (YCUL0125 - YCUL0275).
Refer to Figure 7 and unit wiring diagram.
Alarm Status Contacts
Normally-open contacts are available for each refriger-
ant system. These normally-open contacts close when
the system is functioning normally. The respective con-
tacts will open when the unit is shut down on a unit fault,
or locked out on a system fault. Field connections are at
CTB2 terminals 29 to 30 (sys 1), and terminals 31 to 32
(sys 2). Refer to Figure 7 and unit wiring diagram.

JOHNSON CONTROLS
16
FORM 150.63-NM8 (1020)
INSTALLATION
PWM INPUT
The PWM input allows reset of the discharge air temper-
ature setpoint (when unit is programmed for Discharge
Air Temperature Control mode) by supplying a “timed”
contact closure. Field wiring should be connected to
CTB1 - terminals 13 to 20. A detailed explanation is
provided in the Unit Control section. Refer to Figure 6
and unit wiring diagram.
Load Limit Input
Load limiting is a feature that prevents the unit from
loading beyond a desired value. The unit can be “load
limited” either 33% or 66% on 3 or 6 compressor units,
50% on 2 or 4 compressor units, 40% or 80% on 5
compressor units, depending on the number of com-
pressors on the unit. The eld connections are wired
to CTB1- terminals 13 to 21, and work in conjunction
with the PWM inputs. Adetailed explanation is provided
in the Unit Control section. Refer to Figure 6 and unit
wiring diagram.
When using the Load Limit feature, the
PWM feature will not function - SIMULTA-
NEOUS OPERATION OF LOAD LIMIT-
ING AND TEMPERATURE RESET (PWM
INPUT) CANNOT BE DONE.
COMPRESSOR HEATERS
Compressor heaters are standard on all models. If power
is OFF more than two hours, the crankcase heaters
must be energized for 18-24 hours prior to restarting a
compressor. This will assure that liquid slugging and oil
dilution does not damage the compressors on start.
REFRIGERANT PIPING
General
When the unit has been located in its nal position,
the unit piping may be connected. Normal installation
precautions should be observed in order to receive
maximum operating eciencies. System piping should
conform to the York DX piping guide form 050.40ES2 or
ASHRAE refrigeration handbook guidelines. All piping
design and installation is the responsibility of the user.
JOHNSON CONTROLS ASSUMES NO WARRAN-
TY RESPONSIBILITY FOR SYSTEM OPERA-
TION OR FAILURES DUE TO IMPROPER PIP-
ING, PIPING DESIGN, CONTROL PROBLEMS,
OR LACK OF OIL RETURN.
Filter driers and sight glasses are shipped loose for eld
installation on each refrigerant circuit. Field refrigerant
piping can be connected to the condensing unit.
All expansion valves, liquid line solenoid valves, and
refrigerant piping are eld supplied and installed. TXV
sizing should be equal in size or slightly smaller than
the capacity of the circuit. If multiple coil sections are
utilized, a TXV for each section, sized accordingly,
must be installed.
Table 4 lists refrigerant line connections sizes per unit
model number.
REFRIGERANT LINE SIZING
Refrigerant piping systems must be designed to provide
practical line sizes without excessive pressure drops,
prevent compressor oil from being “trapped” in the
refrigerant piping, and ensure proper ow of liquid re-
frigerant to the thermal expansion valve. Considerations
should be given to:
1. Suction line pressure drop due to refrigerant ow.
2. Suction line refrigerant velocity for oil return.
3. Liquid line pressure drop due to refrigerant ow.
4. Liquid line pressure drop (or gain) due to vertical
rise of the liquid line.
Table 5 & 6 provides the pressure drops for given pipe
sizes for both liquid and suction lines. The pressure
drops given are per 100 ft. (30.5 m) of refrigerant pip-
ing. These friction losses do not include any allowances
for strainer, lter drier, solenoid valve, isolation valve,
or ttings.
Nominal pressure drop for solenoids, sight glass, and
driers are shown in Table 2.
Table 1 includes approximate equivalent lengths for
copper ttings.
To ensure a solid column of liquid refrigerant to the ex-
pansion valve, the total liquid line pressure drop should
never exceed 40 PSI (276 kPa). Refrigerant vapor in the
liquid line will measurably reduce valve capacity and
poor system performance can be expected.
To allow adequate oil return to the compressor, suction
risers should be sized for a minimum of 1000 FPM
(5.08 m/s) while the system is operating at minimum
capacity to ensure oil return up the suction riser. Refer
to Table 5 & 6 under column labeled “Nominal Tons
(kW) Unloaded.

JOHNSON CONTROLS 17
FORM 150.63-NM8 (1020)
1
Evaporator Below Condensing Unit
On a system where the evaporator is located below the
condensing unit, the suction line must be sized for both
pressure drop and oil return. In many cases a double
suction riser must be installed to ensure reliable oil
return at reduced loads. Table 5 & 6 indicates when
a double suction riser should be used for listed pipe
sizes to provide adequate oil return at reduced loads.
The calculated information was based on maintaining
a minimum of 1000 fpm (5.08 m/s) refrigerant vapor
velocity at full load.
Condenser Below Evaporator
When the condensing unit is located below the evapo-
rator, the liquid line must be designed for both friction
loss and static head loss due the vertical rise. The value
of static head loss of 5 PSI/ft. (3.4 kPa/30 cm) must be
added to the friction loss pressure drop in addition to
all pressure drops due to driers, valves, etc.
OIL TRAPS
All horizontal suction lines should be pitched at least
1/4" per foot (2 cm/m) in the direction of the refrigerant
ow to aid in the return of oil to the compressor. All
suction lines with a vertical rise exceeding 3 feet (.91
meters) should have a “P” trap at the bottom and top
of the riser to facilitate oil return. Suction lines with a
vertical rise exceeding 25 feet (7.6 meters) should be
trapped every 15 feet (4.6 meters).
For more details, refer to ASHRAE Refrigeration Hand-
book. System Practices for Halocarbon Refrigerants.
On systems where oil return is a prob-
lem, oil separators may be required.
However, if piping design is poor, even
with a separator, oil may be lost into
the system over time, which may cause
compressor failure.
REFRIGERANT CHARGE
The condensing unit is charged with nitrogen a hold-
ing charge. The operating charge for the condensing
unit, evaporator coil, and refrigerant piping must be
“weighed-in” after all refrigerant piping is installed,
leak checked, and evacuated.
70% of the calculated charge must
be added prior to starting a system.
Failure to add 70% of the charge may
cause compressor overheating when
the system is rst started.
Final adjustment of refrigerant charge should be veried
by subcooling values (refer to section on Pre-Startup
for checking subcooling). See Table 3 for Refrigerant
Line Charges.
FILTER DRIERS/ SIGHT GLASSES/ TXV'S
Liquid line lter driers, sight glass, and TXV's are eld
supplied for each refrigerant circuit.
REFRIGERANT PIPING REFERENCE
For more details, refer to ASHRAE Refrigeration Hand-
book, Chapter 2.
TABLE 1 – FITTING EQUIVALENT LENGTHS
*COPPER FITTING EQUIVALENT LENGTHS
LINE SIZE O.D. SHORT-RADIUS ELL LONG-RADIUS ELL
3/4" (19mm) 6.5 ft. (2m) 4.5 ft. (1.4m)
7/8" (22mm) 7.8 ft. (2.4m) 5.3 ft. (1.6m)
1-1/8" (29mm) 2.7 ft. (.8m) 1.9 ft. (.6m)
1-3/8" (35mm) 3.2 ft. (1m) 2.2 ft. (.7m)
1-5/8" (41mm) 3.8 ft. (1.2m) 2.6 ft. (8m)
2-1/8" (54mm) 5.2 ft. (1.6m) 3.4 ft. (1m)
2-5/8" (67mm) 6.5 ft. (20m) 4.2 ft. (1.3m)
TABLE 3 – MISCELLANEOUS LIQUID LINE
PRESSURE DROPS
*MISCELLANEOUS LIQUID LINE PRESSURE
SOLENOID VALVE 2 TO 3 PSI (13.8 TO 20.7 kPa)
FILTER/DRIER 2 TO 3 PSI (13.8 TO 20.7 kPa)
SIGHT GLASS 0.5 PSI (3.4 kPa)
TABLE 2 – REFRIGERANT PIPING CHARGES
REFRIGERANT LINE CHARGES
SUCTION LINES LIQUID LINES
1-3/8" (35mm) .2 oz./ft. (6 grams/30cm) 3/4" (19mm) 2.7 oz./ft. (76 grams/30cm)
1-5/8" (41mm) .3 oz./ft. (8 grams/30 cm) 7/8" (22mm) 3.7 oz./ft. (105 grams/30cm)
2-1/8" (54mm) .6 oz/ft. (17 grams/30cm) 1-1/8" (29mm) 6.2 oz./ft. (176 grams/30cm)
2-5/8" (67mm) .8 oz./ft. (23 grams/30cm) 1-3/8" (35mm) 8.6 oz./ft. (244 grams/30cm)
* Pressure drops or equivalent length values are approximate. If more precise value is desired, consult either the York DX Piping Guide (form
050.40-ES2) or ASHRAE Refrigerant Handbook.
* Pressure drops or equivalent length values are approximate.
If more precise value is desired, consult ASHRAE Refrigerant
Handbook.

JOHNSON CONTROLS
18
FORM 150.63-NM8 (1020)
INSTALLATION
See notes on page 22.
TABLE 4 – REFRIGERANT LINE CONNECTIONS
YCUL REFRIGERANT LINE CONNECTIONS
MODEL YCUL SUCTION LIQUID MODEL YCUL SUCTION LIQUID
0045 1-3/8" 7/8" 0161 2-1/8" 7/8"
0061 1-5/8" 7/8" 0171 2-1/8" 7/8"
0081 2-1/8" 7/8" 0185 2-1/8" 1-1/8"
0095 2-1/8" 7/8" 0211 2-1/8" 1-1/8"
0121 2-1/8" 7/8" 0235 2-1/8" 1-1/8"
0125 2-1/8" 7/8" 0255 2-5/8" 1-1/8"
0145 2-1/8" 7/8" 0275 2-5/8" 1-1/8"
TABLE 5 – REFRIGERANT LINE PRESSURE DROPS (ENGLISH)
MODEL
NUMBER
YCUL
SYSTEM
NUMBER
1NOMI-
NAL
TONS
SUCTION LINE LIQUID LINE
COPPER
TYPE L
INCHES
O.D.
2PRESSURE
DROP
PSI/100 FT.
VELOCITY
@NOMINAL
CAPACITY
IN FPM
4NOMINAL
TONS
UNLOADED
COPPER
TYPE L
INCHES
O.D.
3PRES-
SURE
DROP
PSI/100 FT.
0045 1 15 1-5/8 2.5 2400 7.5 3/4 4.5
52-1/8 0.6 1350 7/8 2.1
0061 1 20 1-5/8 4.3 3200 10 3/4 7.7
52-1/8 1.1 1800 7/8 3.5
0081 1 27 1-5/8 7.4 4320 13 7/8 6.1
2-1/8 1.9 2430 1-1/8 1.7
0095 1 31 2-1/8 2.4 2790 15 7/8 7.9
52-5/8 0.7 1860 1-1/8 2.2
0121 1 39
52-1/8 3.7 3510 13 1-1/8 3.4
52-5/8 1.3 2340 1-3/8 1.3
0125
1 21 1-5/8 4.7 3360 10 3/4 8.4
52-1/8 1.2 1890 7/8 3.8
2 21 1-5/8 4.7 3360 10 3/4 8.4
52-1/8 1.2 1890 7/8 3.8
0145
1 27 1-5/8 7.4 4320 13 7/8 6.1
2-1/8 1.9 2430 1-1/8 1.7
2 21 1-5/8 4.7 3360 10 3/4 8.4
52-1/8 1.2 1890 7/8 3.8
0161
1 30 2-1/8 2.3 2700 15 7/8 7.4
52-1/8 0.8 1800 1-1/8 3.8
2 27 1-5/8 7.4 4320 13 7/8 6.1
2-1/8 1.9 2430 1-1/8 1.7
0171
1 31 2-1/8 2.4 2790 15 7/8 7.9
52-5/8 0.9 1860 1-1/8 2.2
2 31 2-1/8 2.4 2790 15 7/8 7.9
52-5/8 0.9 1860 1-1/8 2.2

JOHNSON CONTROLS 19
FORM 150.63-NM8 (1020)
1
MODEL
NUMBER
YCUL00
SYSTEM
NUMBER
1NOMINAL
TONS
SUCTION LINE LIQUID LINE
COPPER
TYPE L
INCHES
O.D.
2PRES-
SURE
DROP
PSI/100 FT.
VELOCITY
@NOMI-
NAL
CAPACITY
IN FPM
4NOMINAL
TONS
UNLOADED
COPPER
TYPE L
INCHES
O.D.
3PRES-
SURE
DROP
PSI/100 FT.
0185
1 39 2-1/8 3.7 3510 13 1-1/8 3.4
52-5/8 1.3 2340 1-3/8 1.3
2 39 2-1/8 3.7 351 13 1-1/8 3.4
52-5/8 1.3 2340 1-3/8 1.3
0211
1 45 2-1/8 4.9 4050 15 1-1/8 4.4
52-5/8 1.7 2700 1-3/8 1.7
2 39 2-1/8 3.7 3510 13 1-1/8 3.4
52-5/8 1.3 2340 1-3/8 1.4
0235
1 45 2-1/8 4.9 4050 15 1-1/8 4.4
52-5/8 1.7 2700 1-3/8 1.7
2 45 2-1/8 4.9 4050 15 1-1/8 4.4
52-5/8 1.7 2700 1-3/8 1.7
0255
1 50 2 5/8 2.1 3000
25
5.4 5.4
3 1/8 0.9 2200 2.1 2.1
2 41 2 1/8 4.1 3690 3.7 3.7
2 5/8 1.4 2460 1.4 1.4
0275
1 49 2 5/8 2 2940
25
5.2 5.2
3 1/8 0.9 2156 2 2
2 49 2 5/8 2 2940 5.2 5.2
3 1/8 0.9 2156 2 2
TABLE 5 – REFRIGERANT LINE PRESSURE DROPS (ENGLISH) (CONT)
See notes on page 22.

JOHNSON CONTROLS
20
FORM 150.63-NM8 (1020)
INSTALLATION
MODEL
NUMBER
YCUL
SYSTEM
NUMBER
1NOMI-
NAL
KW
SUCTION LINE LIQUID LINE
COPPER
TYPE L
INCHES
O.D.
2PRES-
SURE
DROP
kPa/30.5 m
VELOCITY
@NOMINAL
CAPACITY
IN M/S
4NOMINAL
KW
UNLOADED
COPPER
TYPE L
INCHES
O.D.
3PRES-
SURE
DROP
kPa/30.5 m
0045 1 53 1-5/8 17.2 2400 26 3/4 31.0
52-1/8 4.1 1350 7/8 14.5
0061 1 70 1-5/8 29.6 3200 35 3/4 53.0
52-1/8 7.6 1800 7/8 24.1
0081 1 95 1-5/8 51.0 4320 46 7/8 42.1
2-1/8 13.0 2430 1-1/8 11.7
0095 1 109 2-1/8 16.5 2790 53 7/8 54.5
52-5/8 4.8 1860 1-1/8 15.2
0121 1 137
52-1/8 25.5 3510 46 1-1/8 23.4
52-5/8 9.0 2340 1-3/8 9.0
0125
1 74 1-5/8 32.4 3360 35 3/4 58.0
52-1/8 8.3 1890 7/8 26.2
2 74 1-5/8 32.4 3360 35 3/4 58.0
52-1/8 8.3 1890 7/8 26.2
0145
1 95 1-5/8 51.0 4320 46 7/8 42.1
2-1/8 13.1 2430 1-1/8 11.7
2 74 1-5/8 32.4 3360 35 3/4 58.0
52-1/8 8.3 1890 7/8 26.2
0161
1 105 2-1/8 15.6 2700 53 7/8 51.0
52-1/8 5.5 1800 1-1/8 26.2
2 95 1-5/8 51.0 4320 46 7/8 42.1
2-1/8 13.1 2430 1-1/8 11.7
0171
1 109 2-1/8 16.5 2790 53 7/8 54.5
52-5/8 6.2 1860 1-1/8 15.2
2 109 2-1/8 16.5 2790 53 7/8 54.5
52-5/8 6.2 1860 1-1/8 15.2
0171
1 141 2-1/8 26.9 18.3 46 1-1/8 24.8
52-5/8 9.7 12.2 1-3/8 9.7
2 109
52-1/8 16.5 14.2 35 7/8 54.5
52-5/8 6.2 9.4 1-1/8 15.2
0185
1 137 2-1/8 25.5 17.8 46 1-1/8 23.4
52-5/8 9.0 11.9 1-3/8 9.0
2 137 2-1/8 25.5 17.8 46 1-1/8 23.4
52-5/8 9.0 11.9 1-3/8 9.0
0211
1 158 2-1/8 33.8 20.6 53 1-1/8 30.3
52-5/8 11.7 13.7 1-3/8 11.7
2 137 2-1/8 25.5 17.8 46 1-1/8 23.4
52-5/8 9.0 11.9 1-3/8 9.7
TABLE 6 – REFRIGERANT LINE PRESSURE DROPS (METRIC)
See notes on page 22.