Johnson Controls L-Series User manual

FORM 145.05-EG2 (618)
ENGINEERING GUIDE
Water-Cooled
Self-Contained Units
L-Series, Vertical

FORM 145.05-EG2 (618)
2JOHNSON CONTROLS
Nomenclature
EVAPORATOR COIL
SE = Standard Efficiency
HE = High Efficiency
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
L S W U 0 9 5 S E A 4 6 S P D 4 0 O H 3 6 P 2 V V C O 0 0 0 S
UNIT TYPE
L = “L” Series
S = Self-Contained
W = Water-Cooled
U/D = Upflow/Downflow
NOMINAL
CAPACITY
025 = 25 Ton
032 = 32 Ton
035 = 35 Ton
040 = 40 Ton
050 = 50 Ton
060 = 60 Ton
062 = 62 Ton
070 = 70 Ton
080 = 80 Ton
095 = 95 Ton
105 = 105 Ton
DESIGN SEQUENCE
A = Initial Design
SUPPLY VOLTAGE
17 = 208V-3-6-0
28 = 230V-3-6-0
46 = 460V-3-6-0
58 = 575V-3-6-0
POWER SUPPLY CONNECTION
SPT = Single Point Terminal Block
SPD = Single Point Disconnect Switch
DPT = Dual Point Terminal Block
DPD = Dual Point Disconnect Switch
ELECTRIC
HEAT SIZE
000 = No EH
017 = 17.5 KW
035 = 35 KW
052 = 52.5 KW
070 = 70 KW
105 = 105 KW
HEAT OPTION
CO = Cooling Only
HW = Hot Water
EH = Electric Heat
VFD OPTION
CV = Constant Volume
VV = Variable Air Volume
(VAV)
VB = VAV with Bypass
ENTERING WATER
TEMPERATURE
S = Standard Temperature
H - High Temperature
FAN CLASS
P2 = CL2, Plenum
P3 = CL3, Plenum
FAN SIZE
25 = 25 inch
28 = 28 inch
32 = 32 inch
36 = 36 inch
40 = 40 inch
SUPPLY MOTOR TYPE
OP = ODP Premium Eff.
TP = TEFC Premium Eff.
SUPPLY
MOTOR HP
05 = 5 HP
07 = 7.5 HP
10 = 10 HP
15 = 15 HP
20 = 20 HP
25 = 25 HP
30 = 30 HP
40 = 40 HP
50 = 50 HP
60 = 60 HP

FORM 145.05-EG2 (618)
JOHNSON CONTROLS 3
Table of Contents
FEATURES AND BENEFITS ....................................................................................................................................5
FEATURES AND OPTIONS.................................................................................................................................... 11
SELECTION PROCEDURE....................................................................................................................................15
OPERATING LIMITATIONS....................................................................................................................................18
PHYSICAL DATA ....................................................................................................................................................19
COOLING PERFORMANCE DATA ........................................................................................................................22
DIMENSIONAL DATA .............................................................................................................................................33
AIR PRESSURE DROPS........................................................................................................................................57
SUPPLY FAN DATA................................................................................................................................................63
WATER PRESSURE DROP....................................................................................................................................65
ELECTRICAL DATA ...............................................................................................................................................68
OPERATING WEIGHTS..........................................................................................................................................69
GUIDE SPECIFICATIONS ......................................................................................................................................71

FORM 145.05-EG2 (618)
4JOHNSON CONTROLS
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FORM 145.05-EG2 (618)
JOHNSON CONTROLS 5
Features and Benefits
LOW OWNERSHIP COST
Lower Installation Cost
• Single point power connections.
• Single condenser water inlet and outlet connections. Factory installed internal piping.
• Comprehensive factory testing of refrigerant, condenser water piping, supply fan,
and control system.
• Factory installed internal condensate drain connection.
• Compact design allows smaller mechanical equipment room.
• Optional low service clearance units allow installation in even smaller mechanical
equipment rooms.
• Optional multiple piece shipment allows installation in tight spaces. No eld refrig-
erant or water piping is required.
• Condenser water piping connections from the top of the unit minimizes piping in
mechanical equipment room.
LOWER OPERATING COST
Efficient Operation
• Plenum fan with backward inclined airfoil blades provides required airow at a low-
er energy consumption compared to the most competitive units.
• All scroll compressors combined with highly efcient condenser and evaporator coil
design provides efcient cooling, lowering energy consumption.
• Water economizer and air economizer options provide free cooling to reduce power
consumption.
• Partial occupancy on any oor reduces power consumption, due to multiple com-
pressor operation and optional variable frequency drive (VFD) to match capacity to
the load.
• After hours operation on any oor only requires unit on that oor with partial op-
eration of cooling tower and pumps. This saves signicant amount of energy over
chilled water systems.
• Variable condenser water ow option, with internal actuated valve(s), prevents ow
through units not requiring cooling, saving pump energy.
• Evaporator coil circuiting supports low leaving air temperature designs to reduce
design air ow and reduce fan operating energy.
• High efciency evaporator coil available for lower air ow, low leaving air tempera-
ture applications.

FORM 145.05-EG2 (618)
6JOHNSON CONTROLS
Features and Benefits (Cont’d)
Easier Maintenance
• Large, intuitive operator interface makes for quick set up and easier diagnostics. It is
on the external panel for easy viewing.
• Operator interface for optional VFD on the external panel.
• Easy access to important components through hinged doors for easy maintenance.
• Easily accessible components out of the air stream allow adjustment of components,
including expansion valves, while unit is operating.
• Easy lter access for inspection, removal, and replacement.
• Internally trapped condensate drain cleanout with easy access.
• Available BACnet®communications with Building Automation System (BAS) al-
lows for easier control of larger installations.
• Emergency stop input.
Indoor Air Quality
• Condensate drain pan sloped in all directions to the drain point.
• Stainless steel drain pan standard
• High efciency lters option with pre-lters.
• Evaporator and waterside economizer coils surface may be cleaned from air entering
side as well as air leaving side.
• Easy access to internally trapped condensate drain cleanout.
• Matt faced berglass insulation.
Quieter Acoustic Performance
• Plenum fan with backward inclined airfoil blades provides required airow at a low-
er sound power level compared to the most competitive units.
• Unique placement of internal components minimizes amount of acoustic energy
leaving the unit.
• Supply fan and motor assembly mounted on a frame and isolated with springs.
• Optional discharge plenum congurations allow horizontal supply air discharge,
minimizing the outlet sound and pressure losses.
• Optional inlet plenum conguration minimizes sound escaping the unit inlet.
• Multiple scroll compressors, due to their smoother ow and stepped operation, mini-
mize the sound associated with the refrigerant system.
• The compressors are located out side air stream, including all the refrigerant piping
and condenser water piping.

FORM 145.05-EG2 (618)
JOHNSON CONTROLS 7
STANDARD FEATURES
Controls
• Microprocessor based control system proven algorithms.
• Large 32-key operator interface with large display, in clear language, accessible
without opening panel.
• Alarms and faults displayed and stored in the controller memory.
• Occupied and Unoccupied mode operation.
• Timed Override operation.
• Supply airow proving switch.
• Condensing pressure control when condenser valves are present.
• All refrigerant controls like thermostatic expansion valves, sight glass are out of the
air stream and adjustable while unit is working.
• ETL and CETL listing for US and Canada.
Refrigerant Circuits
• Multiple scroll compressors for better temperature control. Up to six compressors.
• All compressors have independent refrigerant circuits and independent short circuit
protection.
• Automatic compressor lead-lag on units larger than 40 tons.
• Environmentally friendly R-410A refrigerant.
• Completely factory piped, charged, and protected refrigerant circuits.
• Each refrigerant circuit with suction and discharge pressure transducers for enhanced
diagnostics and control.
• Evaporator coil frost protection
• Mechanically cleanable shell and tube condenser, factory tested and piped.
• Factory leak and pressure tested refrigerant piping
• Low ambient compressor lockout.
Supply Fan
• Plenum fan with backward inclined airfoil blades provides required airow at lower
energy consumption and sound compared to the most competitive units.
• Minimum class II fans for high static requirements. Class III fans available.
• Supply fan and motor assembly is isolated with springs to minimize the vibration and
sound transmission to the rest of the unit and beyond.
• Bearing lubrication line brought to one location for easy maintenance.

FORM 145.05-EG2 (618)
8JOHNSON CONTROLS
Features and Benefits (Cont’d)
Unit Cabinet
• Welded base made out of 10-gauge galvanized steel frame and structural members.
• External cabinet parts made out of painted 16-gauge galvanized steel.
• External panels made out of painted 18-gauge galvanized steel.
• Lifting lugs to lift the unit without skid.
• Hinged 2-inch thick access doors covering the coil, compressors, condensers, water
piping, electrical components, and fan access. Insulated where necessary with 2-inch
matt faced berglass insulation.
• Stainless steel drain pan with insulation, sloped in all directions.
• Condensate drain with cleanout and proper slope towards the drain.
Filters Section
• Filter section made out of 18-gauge painted galvanized steel.
• 4-inch thick MERV 8 lters are standard.
Condenser Water Piping
• Factory installed and tested condenser water piping.
• Condenser water piping exiting unit from the top for easier and shorter eld connec-
tions.
OPTIONAL FEATURES
Variable Frequency Drive (VFD)
• Factory installed, wired, and commissioned VFD controls the fan speed in conjunc-
tion with the unit controller, based on a signal from controller.
• Unit installed duct static pressure sensor to sense duct static using elds installed
pneumatic tubes.
• Optional manual electrical bypass manually enables unit to run the supply fan motor
at full speed in case the VFD failure.
Waterside Economizer
• Waterside economizer, which uses colder condenser water available during colder
outdoor conditions, to provide cooling by passing cold condenser water through ad-
ditional water economy coil upstream of the evaporator coil in terms of air ow.
Internal temperature sensors determine suitability of condenser water for full or par-
tial free cooling and route condenser water flow through the water economy coil
when suitable. Internal water piping and valves are included.
• Water economy coil with optional mechanically cleanable return bends is available.
• Condenser water ow through the unit is enabled only in cooling mode. Minimum
condenser water temperature for unit compressor operation in this mode is 40.0°F.

FORM 145.05-EG2 (618)
JOHNSON CONTROLS 9
Condenser Water Regulating Valves
• Units without waterside economizer will permit compressor operation up to 55.0°F
and above. For condenser water temperatures below this threshold, optional con-
denser water regulating valve(s) are available. Optional condenser water valve con-
trols the water ow though unit condensers to maintain minimum discharge pressure
for all compressors with ow through unit enabled only in the cooling mode.
Optional Condenser and Bypass water valves maintain minimum discharge pressure
for all compressors with flow through unit always enabled.
Heating
• Hot water coil with factory installed and tested water piping and valve for modulated
control. Controlled by the unit controller.
• Electric heat, factory installed, wired, and tested.
• All of the heating options are in reheat position. However, the heating will only be
used when cooling is off.
• Only one heating option is available in any unit.
Controls
• Factory installed and wired non-fused disconnect switch for the unit power. Discon-
nect switch is accessible without opening unit doors.
• Static pressure transducer is installed and wired on all variable air volume (VAV)
units to control VFD operation.
• Additional static pressure transducer installed and wired with comparative logic built
in.
• Duct static pressure limit switch mounted and wired in unit to disable unit operation
in case of high duct static.
• BACnet (MS/TP) interface for communication with BAS.
• Water Flow Switch will lock out all compressors in the unit if minimum water ow
is not present.
High Efficiency Air Filtration
• Optional High Efciency MERV 13 4-inch thick lters are available with 4-inch
thick MERV 8 pre-lter.
High Efficiency Evaporator Coils
• High efciency evaporator coil for lower air ow, low leaving air temperature ap-
plications. Provides higher EER and higher capacity.
Modular Construction
• Unit shipped in multiple sections. All refrigerant piping, condenser water piping, and
condensate drain piping is factory assembled and does not require additional eld
work. Various sections are as follows:
• Refrigerant and heating section consisting of evaporator coil, water economy
coil, condensers, compressors, condenser water piping, and heating options.

FORM 145.05-EG2 (618)
10 JOHNSON CONTROLS
• Fan and power section consisting of supply fan and motor assembly, power and
control panels, and VFD.
• Filter section, including the filters.
Low service clearance
• For areas with limited mechanical equipment room space, optional conguration of
the unit requiring less (3 inch) than standard clearance on left of the unit as looking
at the unit from the fan side is required. Less (3 inch) service clearance on the fan
side is also available.
Field Installed Accessories
• Discharge plenum/Outlet plenum.
• Full discharge plenum is factory manufactured discharge plenum with 3-inch
thick matt faced insulation and 20-gauge perforated galvanized steel liner, with
or without factory cut openings.
• Half discharge plenum is factory manufactured discharge plenum with 3-inch
thick matt faced insulation and 20-gauge perforated galvanized steel liner, with
or without factory cut openings.
• Airside economizer with outdoor air connection, damper, and damper actuator at the top,
return air connection, damper, and damper actuator at the back. Provided with connecting
harness for the actuators and sensors, installed by others. Different control options:
• Dry bulb
• Single enthalpy
• Dual enthalpy
• Inlet sound attenuating plenum attaches to the lter section for further reducing the
sound emitted through the unit air inlet.
Features and Benefits (Cont’d)

FORM 145.05-EG2 (618)
JOHNSON CONTROLS 11
Features and Options
COMPRESSORS
INTERNAL FAN ISOLATION
SEISMIC ISOLATION*
HOT WATER IN**
HOT WATER OUT**
CONDENSER WATER OUT
CONDENSER WATER IN
HOT WATER COIL**
SHELL & TUBE CONDENSER
HIGH EFFICIENCY FILTERS*
FILTER DRIERS
WATER ECONOMY COIL*
HOT WATER VALVE**
FAN INLET & COIL CLEANING ACCESS DOOR
STANDARD AIR FILTERS
EVAPORATOR COIL
ELECTRIC HEATER FRAME**
**OPTIONAL HOT WATER OR
ELECTRIC HEAT
* OPTIONAL
CONDENSATE DRAIN TRAP
LIFTING LUGS(8)
ELECTRIC HEAT CONTROLS**
AIR SAFE-OFF
VARIABLE FREQUENCY DRIVE* FAN MOTOR & FRAME
ELECTRICAL CONTROLS
PLENUM FAN
THERMOSTATIC EXPANSION VALVES
CONDENSER WATER VALVES

FORM 145.05-EG2 (618)
12 JOHNSON CONTROLS
Features and Options (Cont’d)
*OPTIONAL **OPTIONAL HOT WATER OR
ELECTRIC HEA
T
INTERNAL FAN ISOLATIO
N
SEISMIC ISOLATION*
AIR SAFE-OFF
ELECTRIC HEATER FRAME**
HOT WATER IN**
HOT WATER OUT**
CONDENSER WATER IN
CONDENSER WATER OUT
HOT WATER VALVE**
HOT WATER COIL**
LIFTING LUGS (4)
FAN INLET & COIL CLEANING ACCESS DOOR
EVAPORATOR COIL
WATER ECONOMY COIL*
FILTER DRIER
SHELL & TUBE CONDENSERS
STANDARD AIR FILTERS
THERMOSTATIC EXPANSION VALVES HIGH EFFICIENCY FILTERS*
FILTER DRIERS
CONDENSATE DRAIN TRAP
ELECTRICAL CONTROLS
VARIABLE FREQUENCY DRIVE*
ELECTRIC HEAT CONTROLS**
FAN MOTOR & FRAME
PLENUM FAN
COMPRESSORS
CONDENSER WATER VALVES

FORM 145.05-EG2 (618)
JOHNSON CONTROLS 13
* OPTIONAL ** OPTIONAL HOT WATER OR
ELECTRIC HEA
T
VARIABLE FREQUENCY DRIVE*
SHELL & TUBE CONDENSERS
FAN MOTOR & FRAME
AIR SAFE-OFF
LIFTING LUGS (4)
ELECTRICAL CONTROLS
HOT WATER OUT**
CONDENSER WATER OUT
CONDENSER WATER IN
HOT WATER IN**
FAN INLET & COIL CLEANING ACCESS DOOR
HOT WATER VALVE**
CONDENSATE DRAIN TRAP
FILTER DRIERS
THERMOSTATIC EXPANSION VALVES
HOT WATER COIL**
EVAPORATOR COIL
WATER ECONOMY COIL*
STANDARD AIR FILTERS
HIGH EFFICIENCY FILTERS*
FILTER DRIERS
COMPRESSORS
ELECTRIC HEAT CONTROLS**
CONDENSER WATER VALVES
ELECTRIC HEATER FRAME**
PLENUM FAN
INTERNAL FAN ISOLATION
SEISMIC ISOLATION*

FORM 145.05-EG2 (618)
14 JOHNSON CONTROLS
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FORM 145.05-EG2 (618)
JOHNSON CONTROLS 15
Selection Procedure
1. Design Criteria should be available to select a unit. These criteria include:
a. Design airflow
b. Entering air conditions
• Summer
• Winter (if heating is required)
c. Total and sensible loads
d. Condenser water entering and leaving temperatures
e. External static pressure
f. Factory installed options required
2. Based on design air ow, select the smallest unit with maximum air ow higher than
design air ow and minimum airow lower than design air ow from Unit Physical
Data Tables on page 19 through page 21. Please note that standard and high ef-
ciency units of the same size have different air ow limits.
3. Divide the design air ow by the air ow indicated at the top of the appropriate Cool-
ing Performance Table for the selected unit and efciency, on page 22 through
page 31.Use Table 2 on page 17 to determine the correction factors for total and
sensible capacities and compressor power.
4. Multiply the total and sensible capacities and compressor power from appropriate
Cooling Performance Table for design air and water conditions with the correction
factors above to determine the unit capacity adjusted for the airow.
5. Determine if the cooling performance of this unit is acceptable. If not, repeat steps 2
through 4 above with a higher capacity unit.
6. If waterside economizer option is chosen, follow steps 3 and 4 above with appropri-
ate Waterside Economizer Cooling Performance Table on page 32.
7. If hot water heating option is required, follow steps 3 and 4 with appropriate Hot
Water data from Physical Data tables on page 19–20.
8. If electric heat option is required, obtain heating capacity based on electric heat ca-
pacity and unit voltage from Electric Heat Capacity Table on page 68.
9. Select ltration types and efciencies needed with corresponding air pressure drop
from Table 30 on page 69 and Table 31 on page 70.
10. Select either airside economizer or inlet sound attenuating plenum, if required, with
corresponding air pressure drop from Table 19 and Table 20 on page 57.
11. Select half or full outlet plenum, if required, with corresponding air pressure drop
from Table 19 and Table 20 on page 57.
12. With all options selected, add air pressure drops of all the components selected, in-
cluding evaporator coil, to external static pressure required to determine total static
pressure required for the supply air fan.

FORM 145.05-EG2 (618)
16 JOHNSON CONTROLS
13. Select appropriate fan for the unit to deliver design air ow at required static pres-
sure. There may be more than one supply air fan option available for the unit being
selected.
14. Add 5% belt drive losses to the motor BHP calculated, and select next available sup-
ply fan motor.
15. Supply fan motor heat gain in MBH, based on 93.5% motor efciency, may be cal-
culated by multiplying above BHP plus the belt drive losses by 2.72.
16. Minimum Circuit Ampacity (MCA) of the unit may be calculated, using electrical
data in Table 27 and Table 28 on page 68, as follows:
a. For units without electric heat:
MCA = 1.25 * (largest motor RLA or FLA) + (FLA or RLA of all the rest of the
motor) + two transformers FLA
b. For units with electric heat, MCA is the lower of the heating and cooling mode
MCA. Cooling mode MCA is as shown in step a above.
• Electric heat less than 50 kW
Heating mode MCA = 1.25 * (electric heat FLA + supply fan motor FLA)
+ two transformers FLA.
• For units with electric heat 50 kW or more, MCA is the lower of the heating
and cooling mode MCA
Heating mode MCA = 1.25 * supply fan motor FLA + electric heat FLA +
two transformers FLA.
17. Maximum Overcurrent Protection (MOP) for the unit is calculated as follows:
a. For units without electric heat:
• MOP = 2.25 * (largest motor RLA or FLA) + (FLA or RLA of all the rest
of the motor) + two transformers FLA.
b. For units with electric heat, MOP is the lower of the heating and cooling mode
MOP. Cooling mode MOP is as shown in step a above.
• Heating mode MOP = 2.25 * (electric heat FLA + supply fan motor FLA)
+ two transformers FLA.
c. MOP is equal to next lower fuse size available of the higher of the values cal-
culated above, unless:
• Value in step c is lower than MCA, in which case the MOP value is the next
size higher than the MCA.
18. The component weights are in Table 30 on page 69 and Table 31 on page 70.
Add weights of the components covered by the options selected. To obtain operat-
ing weight, add water weights corresponding to the option selected carrying water
weights.
Selection Procedure (Cont’d)

FORM 145.05-EG2 (618)
JOHNSON CONTROLS 17
TABLE 3 - HOT WATER HEATING CORRECTION FACTORS
AIR FLOW PERCENT TOTAL CAPACITY
80 0.903
85 0.929
90 0.953
95 0.977
100 1.000
105 1.020
110 1.042
115 1.061
120 1.082
TABLE 1 - DX COOLING CORRECTION FACTORS
AIR FLOW PERCENT TOTAL CAPACITY SENSIBLE
CAPACITY
COMPRESSOR
POWER
80 0.967 0.900 0.980
85 0.976 0.926 0.985
90 0.984 0.951 0.990
95 0.991 0.976 0.995
100 1.000 1.000 1.000
105 1.006 1.024 1.003
110 1.013 1.047 1.007
115 1.019 1.070 1.012
120 1.025 1.093 1.016
TABLE 2 - WATERSIDE ECONOMIZER CORRECTION FACTORS
AIR FLOW PERCENT TOTAL CAPACITY SENSIBLE CAPACITY
80 0.883 0.863
85 0.914 0.899
90 0.944 0.934
95 0.973 0.968
100 1.000 1.000
105 1.026 1.031
110 1.052 1.061
115 1.076 1.090
120 1.100 1.118

FORM 145.05-EG2 (618)
18 JOHNSON CONTROLS
Operating Limitations
TABLE 4 - OPERATING LIMITATIONS — LSWU025-LSWU105
MINIMUM MAXIMUM
Entering Air DX Coil-Dry Bulb 75.0°F 85.0°F
Entering Air DX Coil-Wet Bulb 62.0°F 72.0°F
Condenser Water Flow 2.5 GPM/Ton 3.0 GPM/Ton
Entering Cond. Water Temp with Economizer 40.0°F 90.0°F
Entering Cond. Water Temp with Condenser
Water Control Valve 40.0°F 90.0°F
Entering Cond. Water Temp w/o Condenser
Water Control Valve 60.0°F 90.0°F
Steam Heat-Steam Pressure 5 psig 15 psig
Hot Water Heat Entering Water Temp 140.0°F 160.0°F

FORM 145.05-EG2 (618)
JOHNSON CONTROLS 19
Physical Data
TABLE 5 - LSWU025-LSWU060
Model Nominal Tons 025 032 035 040 050 060
Air Flow Range
Maximum Design Air Flow -
Standard - CFM 10,500 13,300 15,500 16,000 20,000 24,000
Maximum Design Air Flow- High
Efciency - CFM 8,600 11,000 13,200 13,200 20,000 20,000
Minimum Design Air Flow -
Standard - CFM 7,200 9,000 10,800 10,800 16,000 16,000
Minimum Design Air Flow - High
Efciency CFM 6,300 7,800 9,400 9,400 14,100 14,100
Cabinet Dimensions
Depth (Excluding Filter Section)
- Inches 70 70 70 70 76 76
Length - Inches 78 78 78 78 100 100
Height - Inches 79.5 79.5 79.5 79.5 90 90
EER 14.3 13.6 13.3 13.1 14.2 13.3
EER - High Efciency 15.3 14.2 14.2 13.6 14.9 13.8
Cooling Coil 3/8" OD
Face Area - Square Feet 17.8 22.2 26.7 26.7 40.1 40.1
Rows 4 4 4 6 5 6
Fins Per Inch (Standard/High
Efciency) 12/17 12/17 12/17 12/17 12/17 12/17
Supply Fan
Fan Type Airfoil Plenum Fan (SWSI)
Diameter - Inches/Class -
Standard
25/Class
II
25/Class
II
28/Class
II
28/Class
II
32/Class
II
36/Class
II
Diameter - Inches/Class - High
Capacity Fan None None None None
Fan Motor HP 5 - 20 10 - 25 10 - 25 10 - 25 15 - 40 15 - 40
Filters
4 Inch Deep - MERV 8
20X20X4 / 24X20X4 / 24X24X4 3 / 6 / 0 3 / 6 / 0 3 / 6 / 0 3 / 6 / 0 0 / 6 / 6 0 / 6 / 6
4 Inch Deep - MERV 13
20X20X4 / 24X20X4 / 24X24X4 3 / 6 / 0 3 / 6 / 0 3 / 6 / 0 3 / 6 / 0 0 / 6 / 6 0 / 6 / 6
Compressors
Type Scroll / *Scroll with Capacity Modulation
Compressor Quantity / Nominal
HP 10* + 10 15* + 11 15* + 13 15* + 15 15*+2-11 15*+2-15
Number of Capacity Steps 6 6 6 6 9 9
Condensers
Type Shell and Tube
Quantity (2 refrigerant circuits
per condenser) 1 1 1 1 2 2
Condenser Water
Connections
Water In and Out Copper
Victaulic Connections - Inches 2.625 2.625 2.625 2.625 2.625 2.625
Waterside Economizer
Coil 1/2" OD
Face Area - Square Feet 17.8 22.2 26.7 26.7 40.1 40.1
Rows/Fins Per Inch 4/11 4/11 4/11 4/11 4/11 4/11
Heating
Hot Water Coil Face Area -
Square Feet 8.8 12.0 15.2 15.2 23.3 23.3
Hot Water Coil Rows/Fins Per
Inch 1/12 1/12 1/12 1/12 1/12 1/12
Steam Coil Consult Factory
Electric Heat - KW - 240/3/60
Nominal 17.5 17.5/35.0 17.5/35.0 17.5/35.0 35.0/52.5 35.0/52.5
Electric Heat - KW - 480/3/60
Nominal 17.5 17.5/35.0 17.5/35.0 17.5/35.0 35.0/52.5 35.0/52.5
Electric Heat - KW - 600/3/60
Nominal 17.5 17.5/35.0 17.5/35.0 17.5/35.0 35.0/52.5 35.0/52.5

FORM 145.05-EG2 (618)
20 JOHNSON CONTROLS
TABLE 6 - LSWU070-LSWU105
Nominal Capacity, Tons 70 80 95 105
Air Flow Range
Maximum Design Air Flow - Standard -
CFM 29,800 33,900 36,100 36,100
Maximum Design Air Flow- High
Efciency - CFM 24,800 28,200 30,100 30,100
Minimum Design Air Flow - Standard -
CFM 19,900 22,600 24,200 24,200
Minimum Design Air Flow - High
Efciency - CFM 17,400 19,800 21,200 21,200
Cabinet Dimensions
Depth (Excluding Filter Section) - Inches 96 96 96 96
Length - Inches 130 130 130 130
Height - Inches 102 102 102 102
EER 14.1 13.7 13.7 13.3
EER - High Efciency 14.5 14.1 14.1 13.7
Cooling Coil
Face Area - Square Feet 49.7 56.5 60.3 60.3
Rows 4 5 5 6
Fins Per Inch (Standard/High Efciency) 12/17 12/17 12/17 12/17
Supply Fan
Fan Type Airfoil Plenum Fan (SWSI)
Diameter - Inches/Class - Standard 36/Class II 36/Class II 40/Class II 40/Class II
Diameter - Inches/Class - High Capacity
Fan 40/Class II 40/Class II None None
Fan Motor HP 15 - 40 15 - 40 20 - 50 20 - 50
Filters
4 Inch Deep - MERV 8 20X20X4 /
24X20X4 8 / 12 8 / 12 8 / 12 8 / 12
4 Inch Deep - MERV 13 20X20X4 /
24X20X4 8 / 12 8 / 12 8 / 12 8 / 12
Compressors
Type Scroll
Compressor Quantity / Nominal HP 2 - 15 +
2 - 13 4 - 15 6 - 13 6 - 15
Number of Capacity Steps 4 4 6 6
Condensers
Type Shell and Tube
Quantity (2 refrigerant circuits per
condenser) 2233
Condenser Water
Connections
Water In and Out Copper Victaulic
Connections - Inches 3.125 3.125 3.125 3.125
Waterside Economizer Coil Face Area - Square Feet 49.7 56.5 60.3 60.3
Rows/Fins Per Inch 4/11 4/11 4/11 4/11
Heating
Hot Water Coil Face Area - Square Feet 35.8 40.6 43.3 43.3
Hot Water Coil Rows/Fins Per Inch 1/12 1/12 1/12 1/12
Steam Coil Consult Factory
Electric Heat - KW - 240/3/60 Nominal 17.5/35.0 17.5/35.0 35.0/52.5 35.0/52.5
Electric Heat - KW - 480/3/60 Nominal 17.5/35.0 17.5/35.0 35.0/52.5 35.0/52.5
Electric Heat - KW - 600/3/60 Nominal 17.5/35.0 17.5/35.0 35.0/52.5 35.0/52.5
Physical Data (Cont’d)