York CU060 - 300, CH060 User Manual
271846-YTG-B-0208
SINGLE PACKAGE AIR
CONDITIONING
WATER COOLED
®
MODELS: CU060 - 300 5-25 TONS
VERTICAL
MODELS: CH060 - 5-10 TONS
HORIZONTAL
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE
TABLE OF CONTENTS
271846-YTG-B-0208
DESCRIPTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
APPLICATION FLEXIBILITY. . . . . . . . . . . . . . . . . . . 3
CABINET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
REFRIGERATION CIRCUITS . . . . . . . . . . . . . . . . . . 3
INDOOR FANS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
ELECTRICAL/CONTROLS . . . . . . . . . . . . . . . . . . . . 3
FILTERS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
FACTORY INSTALLED. . . . . . . . . . . . . . . . . . . . . . . 4
FIELD INSTALLED . . . . . . . . . . . . . . . . . . . . . . . . . . 4
SUPPLY AIR/RETURN AIR CONFIGURATION . . . 23
LIST OF FIGURES
Fig.# Pg.#
1 DIMENSIONAL DATA - CH 5 TON HORIZONTAL
MODEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
2 DIMENSIONAL DATA - CH 8 & 10 TON
HORIZONTAL MODELS . . . . . . . . . . . . . . . . . . . . . . .17
3 PHYSICAL CONFIGURATION DATA - CH 8 &
10 TON WATER SIDE ECONOMIZER . . . . . . . . . . . .18
4 DIMENSIONAL DATA - CU 5, 8, AND 10 TON
VERTICAL MODELS. . . . . . . . . . . . . . . . . . . . . . . . . .19
5 DIMENSIONAL DATA - CU 15 TON VERTICAL
MODEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
6 DIMENSIONAL DATA - CU 20 TON VERTICAL
MODEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
7 DIMENSIONAL DATA - CU 25 TON VERTICAL
MODEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
8 SUPPLY AIR/RETURN AIR CONFIGURATION . . . . .23
9 HOT WATER & STEAM HEATING COILS
DIMENSIONAL DATA . . . . . . . . . . . . . . . . . . . . . . . . .24
10 HOT WATER & STEAM HEATING COILS
PERFORMANCE DATA . . . . . . . . . . . . . . . . . . . . . . .25
11 TYPICAL WATER-SIDE ECONOMIZER PHYSICAL
CONFIGURATION. . . . . . . . . . . . . . . . . . . . . . . . . . . .26
12 TYPICAL WATER-SIDE ECONOMIZER PIPING
SCHEMATIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
13 TYPICAL WATER-SIDE ECONOMIZER CONTROL -
15-20 TON VERTICAL (208-230 V/3PH/60HZ). . . . . .28
LIST OF TABLES
Tbl.# Pg.#
1 GENERAL DATA - CH060-120 5-10 TON
HORIZONTAL MODELS. . . . . . . . . . . . . . . . . . . . . . . . 5
2 GENERAL DATA CU 5-25 TON VERTICAL
MODELS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 SUPPLY AIR BLOWER PERFORMANCE
CH060-120, 5 TO 10 TON HORIZONTAL MODELS . . 7
4 SUPPLY AIR BLOWER PERFORMANCE
CU060-240, 5 TO 20 TON VERTICAL MODELS . . . . . 8
5 SUPPLY AIR BLOWER PERFORMANCE
CU300, 25 TON VERTICAL MODEL . . . . . . . . . . . . . . 8
6 WATERSIDE PRESSURE DROP - CU MODELS . . . . 9
7 WATER PRESSURE DROP DATA - CH MODELS . . 10
8 COOLING PERFORMANCE DATA - CH 5-10 TON
HORIZONTAL MODELS. . . . . . . . . . . . . . . . . . . . . . . 11
9 COOLING PERFORMANCE DATA - CU 5-20 TON
VERTICAL MODELS. . . . . . . . . . . . . . . . . . . . . . . . . . 12
10 COOLING PERFORMANCE DATA - CU 25 TON
VERTICAL MODELS. . . . . . . . . . . . . . . . . . . . . . . . . . 13
11 WATER-SIDE ECONOMIZER COOLING
PERFORMANCE DATA - CH 5-10 TON MODELS . . 13
12 WATER-SIDE ECONOMIZER COOLING
PERFORMANCE DATA - CU 5-25 TON
VERTICAL MODELS. . . . . . . . . . . . . . . . . . . . . . . . . . 14
13 STANDARD MOTORS CU 5-25 TON MODELS. . . . . 14
14 OVERSIZED MOTORS CU 5-25 TON MODELS . . . . 15
15 STANDARD MOTORS CH 5-10 TON MODELS. . . . . 15
16 OVERSIZED MOTORS CH 8-10 TON MODELS . . . . 15
17 DIMENSIONAL DATA - CU 5, 8, AND 10 TON
VERTICAL MODELS. . . . . . . . . . . . . . . . . . . . . . . . . . 19
2 Johnson Controls Unitary Products
271846-YTG-B-0208
DESCRIPTION
These units are completely assembled, piped, wired, charged
and tested at the factory and are shipped ready for immediate
installation. Only the power supply wiring, the thermostat wir
ing, the condenser water piping, the condensate drain piping
and the ductwork are required to complete the installation.
Units include a one-year limited warranty on all replacement
parts and a five-year limited warranty on each compressor.
APPLICATION FLEXIBILITY
These “cooling only” units can be applied with:
1. Cooling towers.
2. Well or surface water providing the temperature and the GPM of the water meet the application limitations of the unit.
3. Brackish or salt water and a secondary heat exchanger.
They can be installed:
1. Within the conditioned space as “free standing” units without any ductwork. Supply air plenum and return air grille accessories are available for these freestanding applications.
2. In an equipment room with both supply and return air ductwork
GENERAL
Horizontal (CH) units are designed for suspended mounting.
HWC models are shipped with ‘straight-through’ evaporator
fan discharge as standard. Airflow orientation is field convertible to side discharge. Vertical (CU) units are designed for
free-standing floor mounting. All units are completely factory
wired and pre-piped. Water supply, water outlet, and condensate drain connections are via female pipe thread fittings.
All models 5 -25 tons ship as factory-charged unitized packages. The 5 -15 ton units may be field split between the evaporator /compressor section and the upper blower section;
installation is possible through standard height doorways and
elevators. All packages are designed for free-standing floor
mounting. All models are shipped with vertical evaporator fan
discharge as standard. Units are completely factory wired
and piped. Dual circuit models feature internally manifolded
condensers.
CABINET
charge are provided with the unit, for field installation. Duct
flange on CU240 & CU300 evaporator return is incorporated
into the filter frame.
REFRIGERATION CIRCUITS
-
All models utilize "Scroll" type hermetic compressors. Compressors are mounted on rubber isolators to minimize vibration transmission. Internal overload protection is provided.
External high pressure and low pressure cutout switches are
included in each compressor control circuit. The 5 ton units
have a single refrigeration circuit. The 8 -20 ton units feature
two independent refrigeration circuits. The 25 ton unit has
three independant refrigeration circuits. Each refrigeration cir
cuit includes an adjustable thermal expansion valve (with
external equalizer), liquid line filter drier, sight glass/moisture
indicator, and service gauge ports.
The evaporator coils are constructed of internally enhanced
copper tubes mechanically bonded to rippled aluminum plate
fins. The evaporator coil is employed in a draw-through configuration, and features inter-laced circuiting. Large evaporator coil face area minimizes potential water blow-off.
The high-efficiency tube-in-tube condensers feature a convoluted inner tube design for optimum performance. Standard
models feature a copper inner tube surrounded by a steel
outer tube, and carry a 400 psig working pressure rating.
INDOOR FANS
Forward curved, double inlet and double width centrifugal
blowers are used for evaporator air movement. Large diameter wheels are employed to provide required airflow performance at minimum rpm and noise levels. Blower wheels are
fabricated of galvanized steel. Blowers employ solid steel
shafts, supported in permanently lubricated ball bearings. All
blowers are belt driven. Variable-pitch motor sheaves allow
for field adjustment of blower rpm.
ELECTRICAL/CONTROLS
All units are completely factory wired with all necessary controls. Manual reset protection is provided on evaporator
blower motors. A manual reset circuit is also provided on
each compressor control circuit in the event of high/low pressure cutout. A 24 volt control circuit, with oversize transformer, is provided for field connection. Units are designed to
operate with conventional thermostat control interface.
-
All cabinets are completely constructed of 18 Ga. corrosion
resistant "Galvalume" coated steel. The entire unit interior
(both evaporator and condensing section) is insulated with
1/2" thick, 2 lbs. density insulation. Service panels are
equipped with lifting handles for ease of removal and han
dling. Duct flanges for return air intake and evaporator dis-
Johnson Controls Unitary Products
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FILTERS
All models are shipped with 2 inch thick medium-efficiency
throwaway filters factory installed. Filters are accessible from
either front or right side on 5-15 ton models. The CU240 and
CU300 filter rack is external to the cabinet (shipped loose).
3
271846-YTG-B-0208
FACTORY INSTALLED
OVERSIZED EVAPORATOR FAN MOTORS
Increased horsepower motors and drive components are
available for those applications where external static pressure requirements exceed the capability of the standard
motor.
CORROSION RESISTANT COATINGS
Evaporator coil shall receive a 1-mil thickness of a cathodic
epoxy type electro-deposition coating, applied in a multiple
dip and bake process.
STAINLESS STEEL DRAIN PAN
Evaporator coil (and optional Water Side Economizer coil)
drain pan shall be fabricated 304 stainless steel material The
3/4 in NPT drain connection fitting is also of 304 stainless
steel.
HOT GAS BYPASS
Adjustable hot gas regulator and all necessary piping shall be
installed on lead compressor circuit. Bypass capacity shall be
minimum 50% of compressor capacity. The bypass valve
opens at a preset suction pressure to prevent coil freeze-up
at light evaporator load, or low airflow conditions. The use of
factory installed Condenser Pressure Control option is
strongly recommended when Hot Gas Bypass is installed.
ANTI-SHORT CYCLE TIMER
Time delay relay will be provided for each compressor circuit.
Compressor will be lock out for 5 minutes when thermostat
contacts open, or there is a momentary power outage.
FIELD INSTALLED
WATER SIDE ECONOMIZER
Commercial Water Cooled Air Conditioners can achieve substantial operating cost reductions by utilizing the cooling
effect made available by low temperature water. The Waterside Economizer Kit consists of a field installed water cooling
coil, pre-assembled external piping sections, a three-way
motorized valve, and all necessary controls for unit operation
from a conventional 24-Volt thermostat.
HOT WATER & STEAM COILS
Hydronic heating coils shall mount on return air side of cooling coil.
RETURN AIR GRILL
Available on 5-15 ton CU models only. Recommended for
applications where return air is not ducted and air is drawn
directly from the conditioned space.
DISCHARGE PLENUM
Plenums mount on top of the evaporator section, with fans
arranged for vertical discharge. Double deflection grills shall
allow air discharge in multiple directions.
OVERSIZED EVAPORATOR FAN MOTORS
Increased horsepower motors and drive components are
available as a kit. Units are field upgradeable for applications
where external staic pressure requirements exceed the capa
bility of the standard motor.
CONDENSER PRESSURE CONTROL
Water regulating valves provide control of the quantity of condenser water supplied to the unit by sensing the condensing
temperature. The field installed Condenser Control Option
provides a regulating valve for each internal condenser water
circuit. Standard Water Regulating Valve carries a 150 psig
working pressure rating. The valve is installed inside of the
unit cabinet.
-
4 Johnson Controls Unitary Products
271846-YTG-B-0208
TABLE 1: GENERAL DATA - CH060-120 5-10 TON HORIZONTAL MODELS
Model - CH CH060 CH096 CH120
Nominal Cooling(Ton) 5 8 10
Cooling Performance
Gross Cooling Capacity(Btuh) 64100 101800 126000
Design CFM 2000 3200 4000
EER 13.3 13.4 12.0
Compressor-Type Scroll
Number Used 1 2 2
Evaporator Coil-Type Copper Tubes, Aluminum Fins
Face Area(sq ft) 5.28 9.17 9.17
Rows/FPI 3/13 3/13 3/13
Condenser-Type Coaxial
Number Used/Tons Capacity 1/5 2/4 2/5
Nominal Water flow rate (gpm) 15 24 30
Condenser Water Connections 1" FPT 1-1/4" FPT 1-1/4" FPT
Evaporator Fan-Type Centrifugal, Forward Curved
Number Used 1 2 2
Diameter x Width (in) 10x10 10x8 10x8
Drive Adjustable Belt
Motor HP (Standard/Oversize) 1/NA 1.5/2 2/3
Filters
Number Used-Size(in) 2-20x20x2 2-20x25x2
1-20x20x2
2-20x25x2
1-20x20x2
Condensate Drain Connection 3/4FPT
Weight 460 710 760
NOTE: Cooling performance is rated at 80°F dry bulb 67°F wet bulb entering air temperature, CFM listed, 85°F entering
95°F leaving water temperature, and water flow rate listed. Gross capacity does not include the effect of evaporator fan motor heat.
Johnson Controls Unitary Products
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271846-YTG-B-0208
TABLE 2: GENERAL DATA CU 5-25 TON VERTICAL MODELS
Model - CU CU060A CU096A CU120A CU180A CU240A CU300
Nominal Cooling(Ton) 5 8 10 15 20 25
Cooling Performance
Gross Cooling Capacity(Btuh) 63300 100600 127800 188600 246800 322000
Design CFM 2000 3200 4000 6000 8000 10000
EER 12.5 13.2 12.5 12.0 11.6 11.5
Compressor-Type Scroll
Number Used 1 2 2 2 2 3
Evaporator Coil-Type Copper Tubes, Aluminum Fins
Face Area(sq ft) 5.00 9.37 10.50 15.11 19.00 19.79
Rows/FPI 3/12 3/12 3/13 3/12 3/14 4/12
Condenser-Type Coaxial
Number Used/Tons Capacity 1/5 2/4 2/5 2/7.5 2/10 3/7.5
Nominal Water flow rate (gpm) 15 24 30 45 60 78
Unit Water Connection Size 1" FPT 1-1/4" FPT 1-1/4" FPT 1-1/2" FPT 2" FPT 2" FPT
Evaporator Fan-Type Centrifugal, Forward Curved
Number Used 1 1 1 2 2 2
Diameter x Width (in) 12x9 15x12 15x12 15x9 15x11 15x11
Drive Adjustable Belt
Motor HP (Standard/Oversize) 1/1.5 1.5/2 2/3 3/5 5/7.5 7.5/10
Filters
Number Used-Size(in) 2-20x16x2 4-14x25x2 6-14x20x2 2-16x20x2
6-20x25x2 8-20x20x2
4-16x25x2
Condensate Drain Connection 3/4FPT
Weight
Shipping 625 815 975 1350 1525 1825
NOTE: Cooling performance is rated at 80°F dry bulb 67°F wet bulb entering air temperature, CFM listed, 85°F entering
95°F leaving water temperature, and water flow rate listed. Gross capacity does not include the effect of evaporator fan motor heat.
6 Johnson Controls Unitary Products
271846-YTG-B-0208
TABLE 3: SUPPLY AIR BLOWER PERFORMANCE CH060-120, 5 TO 10 TON HORIZONTAL MODELS
EXTERNAL STATIC PRESSURE - Inches W.C.
MODEL # SUPPLY CFM
1800
CH060
CH096
CH120
NOTE:
1. At higher evaporator airflows, and wet bulb conditions condensate carry-over may occur. Adjust airflow downward as necessary.
2. Values include pressure drop from wet coil and clean filters.
3. Shaded areas indicate oversize motors.
2000
2200
3000
3200
3400
3600
4000
4400
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
846 0.41 936 0.48 1024 0.56 1107 0.64 1195 0.74 1259 0.82 1325 0.90 1400 0.99 - 917 0.54 999 0.62 1079 0.71 1157 0.79 1233 0.89 1305 0.98 - - - - - 994 0.70 1069 0.79 1142 0.88 1214 0.98 - - - - - - - - - 810 0.65 900 0.78 986 0.91 1066 1.04 1143 1.17 1221 1.32 1294 1.48 1363 1.63 1433 1.79
851 0.78 938 0.91 1018 1.04 1095 1.18 1170 1.32 1236 1.42 1305 1.56 1380 1.74 1447 1.90
892 0.91 974 1.05 1051 1.19 1125 1.33 1196 1.48 1266 1.64 1320 1.81 1390 1.90 - -
927 1.05 1006 1.20 1081 1.34 1152 1.50 1220 1.65 1287 1.81 1353 1.98 1405 2.07 1472 2.17
1012 1.40 1085 1.56 1153 1.73 1220 1.89 1283 2.06 1345 2.23 1405 2.41 1464 2.59 1522 2.78
1100 1.83 1166 2.00 1230 2.18 1292 2.37 1351 2.55 1410 2.74 1466 2.92 - - - -
1.8
RPM BHP
Johnson Controls Unitary Products
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1.8 2.0 2.2 2.4 2.6 2.8 3.0
271846-YTG-B-0208
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
EXTERNAL STATIC PRESSURE - Inches W.C.
EXTERNAL STATIC PRESSURE - Inches - W.C.
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
791 0.46 872 0.53 948 0.60 1019 0.68 1090 0.76 1159 0.85 1193 0.89 1259 0.98 1321 1.07 1380 1.16 1437 1.25 1492 1.35 1544 1.44 - - - -
860 0.60 935 0.69 1006 0.77 1077 0.85 1136 0.94 1199 1.03 1263 1.12 1324 1.22 1383 1.32 1440 1.42 1494 1.52 - - - - - -
931 0.79 1001 0.88 1067 0.97 1129 1.06 1189 1.15 1247 1.25 1305 1.35 1363 1.45 1419 1.55 - - - - - - - - - -
568 0.70 628 0.81 688 0.92 746 1.05 801 1.19 855 1.35 906 1.50 954 1.65 1001 1.81 1046 1.97 - - - - - - - -
594 0.82 651 0.94 707 1.06 762 1.19 816 1.33 867 1.49 917 1.65 964 1.81 1010 1.98 - - - - - - - - - -
625 0.97 679 1.10 731 1.22 784 1.35 835 1.50 884 1.66 933 1.83 979 2.00 - - - - - - - - - - - -
620 1.04 666 1.16 716 1.29 765 1.43 815 1.56 864 1.71 912 1.88 958 2.00 1003 2.03 1046 2.41 1088 2.60 1129 2.78 1169 2.97 - - - -
681 1.40 721 1.53 765 1.68 811 1.83 856 1.97 900 2.13 945 2.29 988 2.46 1030 2.65 1071 2.84 1112 3.05 - - - - - - - -
726 1.77 760 1.91 797 2.05 837 2.21 878 2.38 919 2.54 960 2.70 1001 2.87 1040 3.05 - - - - - - - - - -
645 1.52 709 1.79 770 2.06 829 2.35 885 2.65 939 2.96 991 3.28 1042 3.61 1092 3.96 1140 4.32 1190 4.71 - - - - - - - -
700 2.00 759 2.30 815 2.60 870 2.91 922 3.23 973 3.56 1022 3.90 1070 4.25 1116 4.62 1162 4.99 - - - - - - - - - -
761 2.63 815 2.94 867 3.26 917 3.60 966 3.94 1014 4.29 1060 4.66 1104 5.02 - - - - - - - - - - - - - -
659 2.10 714 2.37 767 2.65 817 2.94 866 3.23 912 3.52 957 3.82 998 4.13 1037 4.44 1076 4.76 1115 5.11 1154 5.47 1193 5.73 1230 6.10 1265 6.46
719 2.81 770 3.11 818 3.42 865 3.73 910 4.05 954 4.37 997 4.70 1038 5.03 1078 5.36 1115 5.71 1151 6.08 1186 6.46 1220 6.84 1254 7.23 - -
7200
8000
CU240
782 3.67 828 4.00 873 4.34 916 4.68 959 5.02 1000 5.37 1040 5.73 1079 6.09 1117 6.45 1154 6.81 1190 7.18 - - - - - - - -
8800
9000 800 3.93 846 4.27 890 4.61 932 4.96 974 5.32 1014 5.67 1053 6.03 1092 6.40 1129 6.77 1166 7.14
11000 958 6.95 996 7.37 1033 7.79 1069 8.21 1104 8.63 1139 9.05 1173 9.48 1206 9.92 - - - -
10000 878 5.29 920 5.67 960 6.05 999 6.43 1037 6.82 1074 7.21 1111 7.61 1147 8.01 1182 8.41 1216 8.82
CU300
NOTE:
At higher evaporator airflows and wet bulb conditions, condensate carry-over may occur. Adjust airflow downward as necessary
Values include pressure drop from wet coil and clean filters.
Shaded areas indicate oversize motors.
MODEL # SUPPLY CFM
TABLE 5: SUPPLY AIR BLOWER PERFORMANCE CU300, 25 TON VERTICAL MODEL
NOTE:
At higher evaporator airflows and wet bulb conditions, condensate carry-over may occur. Adjust airflow downward as necessary
Values include pressure drop from wet coil and clean filters.
Shaded areas indicate oversize motors.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1800
2000
2200
3000
3200
3400
3600
4000
4400
5400
6000
6600
TABLE 4: SUPPLY AIR BLOWER PERFORMANCE CU060-240, 5 TO 20 TON VERTICAL MODELS
MODEL # SUPPLY CFM
CU060
CU096
CU120
CU180
8 Johnson Controls Unitary Products
271846-YTG-B-0208
TABLE 6: WATERSIDE PRESSURE DROP - CU MODELS
CU060 CU096 CU120
CU180 CU240 CU300
Johnson Controls Unitary Products
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