Johnson Controls LSWU Installation instructions

INDOOR PACKAGED EQUIPMENT
REASSEMBLY Supersedes: 145.05-FA1 (218) Form 145.05-FA1 (1019)
SPLIT SHIPMENT FIELD REASSEMBLY
WATER-COOLED SELF-CONTAINED UNITS
MODEL LSWU/LSWD/LSWF
WITH IPU2 CONTROL
25–105 TON
035-22910-002
Issue Date:
October 31, 2019

JOHNSON CONTROLS
2
FORM 145.05-FA1
ISSUE DATE: 10/31/2019
This equipment is a relatively complicated apparatus.
During rigging, installation, operation, maintenance,
or service, individuals may be exposed to certain com-
ponents or conditions including, but not limited to:
heavy objects, refrigerants, 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 responsibility of rigging, instal-
lation, and 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
rigging, installation, and operating/service personnel. It
is expected that these individuals possess independent
training that will enable them to perform their assigned
tasks properly and safely. It is essential that, prior to
performing any task on this equipment, this individual
shall have read and understood the on-product labels,
this document and any referenced materials. This in-
dividual shall also be familiar with and comply with
all applicable industry and governmental standards and
regulations pertaining to the task in question.
SAFETY SYMBOLS
The following symbols are used in this document to alert the reader to specific situations:
Indicates a possible hazardous situation
which will result in death or serious injury
if proper care is not taken.
Indicates a potentially hazardous situa-
tion which will result in possible injuries
or damage to equipment if proper care is
not taken.
Identies a hazard which could lead to
damage to the machine, damage to other
equipment and/or environmental pollu-
tion if proper care is not taken or instruc-
tions and are not followed.
Highlights additional information useful
to the technician in completing the work
being performed properly.
External wiring, unless specied as an optional connection in the manufacturer’s product line, is not
to be connected inside the control cabinet. Devices such as relays, switches, transducers and controls
and any external wiring must not be installed inside the micro panel. All wiring must be in accor-
dance with Johnson Controls’ published specications and must be performed only by a qualied
electrician. Johnson Controls will NOT be responsible for damage/problems resulting from improper
connections to the controls or application of improper control signals. Failure to follow this warn-
ing will void the manufacturer’s warranty and cause serious damage to property or personal injury.

JOHNSON CONTROLS 3
FORM 145.05-FA1
ISSUE DATE: 10/31/2019
MANUAL DESCRIPTION FORM NUMBER
L-Series 25-105 Ton Installation, Operation, and Maintenance Manual 145.05-NOM7
L-Series 25-105 Ton Quick Start-Up Guide 145.05-SU7
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 QuickLIT website at http://cgproducts.
johnsoncontrols.com.
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
equipment.
CHANGE BARS
Revisions made to this document are indicated with a
line along the left or right hand column in the area the
revision was made. These revisions are to technical in-
formation and any other changes in spelling, grammar
or formatting are not included.
ASSOCIATED LITERATURE

JOHNSON CONTROLS
4
FORM 145.05-FA1
ISSUE DATE: 10/31/2019
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
NOMINAL
CAPACITY
025 = 25 Ton
032 = 32 Ton
035 = 35 Ton
040 = 40 Ton
050 = 50 Ton
060 = 60 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
ST = Steam Coil
EH = Electric Heat
VFD OPTION
CV = Constant Volume
VV = Variable Air Volume (VAV)
VB = VAV with Bypass
VR = VFD Ready
ENTERING WATER
TEMPERATURE
S = Standard Temperature
H - High Temperature
FAN CLASS
P2 = CL2, Plenum
P3 = CL3, Plenum
2R = CL2, Plenum w/
Piezo Ring
FAN SIZE
25 = 25 inch
28 = 28 inch
32 = 32 inch
36 = 36 inch
40 = 40 inch
SUPPLY MOTOR TYPE
OH = ODP High Eff
OP = ODP Premium Eff.
TH = TEFC High 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
UNIT TYPE
L=“L” Series
S=Self-Contained
W=Water-Cooled
U/D/F=Up/Down/Frontflow

JOHNSON CONTROLS 5
FORM 145.05-FA1
ISSUE DATE: 10/31/2019
TABLE OF CONTENTS
SECTION 1 - SMALL CABINET FIELD ASSEMBLY ............................................................................................... 7
Introduction.......................................................................................................................................................7
Parts .................................................................................................................................................................7
Reassembly Procedure ....................................................................................................................................8
SECTION 2 - MEDIUM CABINET FIELD REASSEMBLY......................................................................................13
Introduction.....................................................................................................................................................13
Parts ...............................................................................................................................................................13
Reassembly Procedure ..................................................................................................................................14
SECTION 3 - LARGE CABINET FIELD REASSEMBLY........................................................................................19
Introduction.....................................................................................................................................................19
Parts ...............................................................................................................................................................19
Reassembly Procedure ..................................................................................................................................20
FIGURE 1 - Small Cabinet: Models 025, 032, 035, and 040.....................................................................................7
FIGURE 2 - View Of Gasket Material Applied Around Supply Fan Opening.............................................................8
FIGURE 3 - Coil Section, Isometric view...................................................................................................................8
FIGURE 4 - Coil Section, Side View..........................................................................................................................8
FIGURE 5 - Tuck Wiring Inside Coil Section .............................................................................................................9
FIGURE 6 - Align Rectangular Openings On Coil and Fan Sections ........................................................................ 9
FIGURE 7 - Fan Section Sockets..............................................................................................................................9
FIGURE 8 - Align Top Panels ....................................................................................................................................9
FIGURE 9 - Align Bases ..........................................................................................................................................10
FIGURE 10 - Open Pressure Seal Door..................................................................................................................10
FIGURE 11 - Remove Compressor Access Panel ..................................................................................................10
FIGURE 12 - Enter The Reconnect Area ................................................................................................................10
FIGURE 13 - Location Of Nut Inserts In Fan Section.............................................................................................. 11
FIGURE 14 - Install Screws Around Fan Opening .................................................................................................. 11
FIGURE 15 - Filter Rack..........................................................................................................................................12
FIGURE 16 - Filter Rack Attachment.......................................................................................................................12
FIGURE 17 - Medium Cabinet: Models 050 and 060..............................................................................................13
FIGURE 18 - View Of Gasket Material Applied Around Supply Fan Opening.........................................................14
LIST OF FIGURES
SMALL CABINET
It is important to refer to the section that directly corresponds to the product's cabinet size.
• Models 025, 032, 035, and 040 use small cabinets.
• Models 050 and 060 use medium cabinets.
• Models 070, 085, 095, and 105 use large cabinets.

JOHNSON CONTROLS
6
FORM 145.05-FA1
ISSUE DATE: 10/31/2019
FIGURE 19 - Coil Section........................................................................................................................................14
FIGURE 20 - Fan Section........................................................................................................................................14
FIGURE 21 - Tuck Wiring Inside Coil Section .........................................................................................................15
FIGURE 22 - Align Rectangular Openings On Coil and Fan Sections .................................................................... 15
FIGURE 23 - Fan Section Sockets..........................................................................................................................15
FIGURE 24 - Align Top Panels ................................................................................................................................15
FIGURE 25 - Align Bases ........................................................................................................................................16
FIGURE 26 - Open Pressure Seal Door..................................................................................................................16
FIGURE 27 - Remove condenser Access Panel.....................................................................................................16
FIGURE 28 - Enter The Reconnect Area ................................................................................................................16
FIGURE 29 - Location Of Nut Inserts In Fan Section..............................................................................................17
FIGURE 30 - Install Screws Around Fan Opening ..................................................................................................17
FIGURE 31 - Filter Rack..........................................................................................................................................18
FIGURE 32 - Filter Rack Attachment.......................................................................................................................18
FIGURE 33 - Large Cabinet: Models 070, 085, 095, and 105 ................................................................................19
FIGURE 34 - Fan Section - Panel and Lifting Lug Removal ...................................................................................20
FIGURE 35 - View of Gasket Material Applied Around Supply Fan Opening..........................................................20
FIGURE 36 - Coil Section - Panel and Lifting Lug Removal ...................................................................................20
LIST OF FIGURES (CONT'D)
LIST OF TABLES
MEDIUM CABINET
LARGE CABINET
FIGURE 37 - Align Top Panels ................................................................................................................................ 21
FIGURE 38 - Align Bases ........................................................................................................................................ 21
FIGURE 39 - Fan Section........................................................................................................................................ 21
FIGURE 40 - Enter The Reconnect Area ................................................................................................................ 21
FIGURE 41 - Bolt Location...................................................................................................................................... 22
FIGURE 42 - Install Screws Around Fan Opening .................................................................................................. 22
FIGURE 43 - Filter Rack.......................................................................................................................................... 23
FIGURE 44 - Filter Rack Attachment....................................................................................................................... 23
TABLE 1 - Small Cabinet Fan Compartment Parts List ............................................................................................ 7
TABLE 2 - Small Cabinet Filter Section Parts List .................................................................................................... 8
TABLE 3 - Medium Cabinet Fan Compartment Parts List ...................................................................................... 13
TABLE 4 - Medium Cabinet Filter Compartment Parts List..................................................................................... 14
TABLE 5 - Large Cabinet Fan Compartment Parts List .......................................................................................... 19
TABLE 6 - Large Cabinet Filter Compartment Parts List ........................................................................................ 20

JOHNSON CONTROLS 7
FORM 145.05-FA1
ISSUE DATE: 10/31/2019
1
LD15016
FIGURE 1 - SMALL CABINET: MODELS 025, 032, 035, AND 040
INTRODUCTION
The L-Series water-cooled self-contained units can
be split and shipped in three segments, allowing for
ease of handling and transporting in a freight elevator
or to fit through a 36-inch doorway, for example. This
manual guides the installer in the reassembly of the
three sections based on the cabinet size. Small cabinet
instructions apply to models 025, 032, 035, and 040.
The unit is assembled and tested at the factory prior
to shipment. The sections are then separated for ship-
ment.
The three segments include:
• Compressor/condenser/coil section
• Control and supply air fan section
• Filter section
Place the sections on dollies or a hand pallet truck to
make it easier to maneuver and position the sections
for assembly. Ensure the dollies or pallet truck is posi-
tioned to support the unit by the perimeter base frame
and not the bottom pan. Failure to do so could result in
damage to the bottom of the unit.
PARTS
Table 1 on page 7 lists the parts that ship loose
with the fan compartment. Locate the box in the fan
compartment behind the pressure seal door beneath the
control compartment.
Table 2 on page 8 lists the parts that ship loose with
the filter section.
TABLE 1 - SMALL CABINET FAN COMPARTMENT
PARTS LIST
ITEM PART NUMBER DESCRIPTION QTY
1 021-30469-032 Bolt, 3/8-inch - 16 x
1-1/4 inch 10
2 021-30530-001 Screw, 10 - 16 x 3/4-inch 25
3 021-30437-006 Lock Washer, 3/8-inch 10
4 021-05167-000 Flat Washer, 3/8-inch 10
SECTION 1 - SMALL CABINET FIELD ASSEMBLY

JOHNSON CONTROLS
8
FORM 145.05-FA1
ISSUE DATE: 10/31/2019
SECTION 1 - SMALL CABINET FIELD ASSEMBLY
TABLE 2 - SMALL CABINET FILTER SECTION
PARTS LIST
ITEM PART NUMBER DESCRIPTION QTY
1 021-30530-001 Screw, 10 - 16 x 3/4-inch 10
REASSEMBLY PROCEDURE
Do not connect the main unit power at
this time.
1. Position the unit sections in their approximate -
nal location.
2. Remove the packaging material from the unit
sections.
3. Examine the unit sections for damage and report
any damage to the carrier.
4. Verify the gasket material around the supply fan
opening on the coil section is intact and not dam-
aged (Figure 2). If damaged, the gasket must be
repaired prior to joining the two units.
5. Prior to pushing the two sections together, remove
the compressor access panels, water valve access
panel (Figure 3), and the coil access panel (Figure
4) from the coil section of the unit. This allows
access to install the bolts in Steps 20. Retain the
panels and hardware for installation in Step 21.
Gasket
Material
LD15018
FIGURE 2 - VIEW OF GASKET MATERIAL APPLIED
AROUND SUPPLY FAN OPENING
6. Prior to pushing the two sections together, place
the wiring through the cutout and into the coil sec-
tion (Figure 5 on page 9).
Coil
Section
Access
Door
Compressor
Access Panels
Water
Valve
Access
Panel
LD15019
FIGURE 3 - COIL SECTION, ISOMETRIC VIEW
Coil Access
Panel
LD15015
FIGURE 4 - COIL SECTION, SIDE VIEW
7. Push the two sections together so that the rectan-
gular opening in the coil section aligns with the
rectangular hole containing the mating plug con-
nections in the fan section (Figure 6 on page 9).

JOHNSON CONTROLS 9
SECTION 1 - SMALL CABINET FIELD ASSEMBLY
FORM 145.05-FA1
ISSUE DATE: 10/31/2019
1
Tuck wiring inside
the coil section prior
to pushing the
two sections together.
LD14771
FIGURE 5 - TUCK WIRING INSIDE COIL SECTION
COIL
SECTION
FAN
SECTION
LD14772
FIGURE 6 - ALIGN RECTANGULAR OPENINGS ON
COIL AND FAN SECTIONS
8. Connect the coil section plugs to the mating sock-
ets in the fan section (Figure 7).
9. Align the two sections' top panels as shown in
Figure 8.
SMALL CABINET
PLUG LAYOUT
JM
JB
JP
JN
JK
JL
JG
JH
JJ
Compressor A
Unload Solenoid
and Discharge
Thermistor
Compressor
Safety Chains -
Compressors
A & B
Discharge and
Suction Pressure
Transducers -
Compressors
A & B
Mixed Air Temp Sensor
Air Proving Switch
Dirty Filter Switch
Feeze-stat
Entering and Leaving
Water Temperature
Sensors
Condenser Water Flow
Switch (Optional)
HW/Steam Valve
(Optional)
Condenser Water
Valve (Optional)
Condenser Bypass or
Water Economy Valve
(Optional)
LD14773
FIGURE 7 - FAN SECTION SOCKETS
COIL
SECTION
FAN
SECTION
Align Top
Panels
LD14774
FIGURE 8 - ALIGN TOP PANELS
10. Use a pipe clamp to align the two sections at
the base. In most cases, this helps align the pre-
punched holes in the coil section with the nut in-
serts in the fan section (Figure 9 on page 10).
11. Access the lower reconnect area by opening the
pressure seal door on the fan section (Figure 10).

JOHNSON CONTROLS
10
FORM 145.05-FA1
ISSUE DATE: 10/31/2019
SECTION 1 - SMALL CABINET FIELD ASSEMBLY
Use pipe clamp to
align the two sections
at the base.
LD14775
FIGURE 9 - ALIGN BASES
Pressure
Seal Door
LD15020
FIGURE 10 - OPEN PRESSURE SEAL DOOR
12. Remove the condenser access panel as indicated
in Figure 11
13. Enter the reconnect area of the fan section to per-
form the next step (Figure 12).
14. From Table 1 on page 7, use Item 1, the 3/8-
inch -16 x 1-1/4 inch bolt; Item 3, the 3/8-inch
lock washer; and Item 4, the 3/8-inch at washer
to connect the fan and coil sections together as
directed in Steps 15, 16, and 17.
Condenser Access
Panel
LD15017
FIGURE 11 - REMOVE COMPRESSOR ACCESS
PANEL
Reconnect area
of fan section.
LD14778
FIGURE 12 - ENTER THE RECONNECT AREA

JOHNSON CONTROLS 11
SECTION 1 - SMALL CABINET FIELD ASSEMBLY
FORM 145.05-FA1
ISSUE DATE: 10/31/2019
1
Step 16
Nut Insert Locations
Step 17
Nut Insert Locations
Step 15
Base Rail Nut
Insert Locations
Condenser
Access
Opening
Condenser
Access Panel
Removed
LD15021
FIGURE 13 - LOCATION OF NUT INSERTS IN FAN
SECTION
15. Enter through the condenser access opening where
the panel was removed in Step 12 and install two
of the 3/8-inch bolts and lock washers from the coil
section side into the base rail nut inserts on the fan
section of the unit (see Figure 13).
16. Open the coil section access door (Figure 3 on
page 8) and install three 3/8-inch bolts, lock
washers, and at washers from the coil section into
the nut inserts on the fan section. Also install a
bolt and lock washer into the bottom base rail as
indicated in Figure 13.
17. Enter the water valve access door (Figure 14) and
install three 3/8-inch bolts, lock washers, and at
washers from the coil section into the nut inserts in
the fan section. Install a bolt and lock washer into
the bottom base rail as indicated in Figure 13.
18. From Table 1 on page 7, use Item 2, 10 - 16
x 3/4-inch screws to create a seal between the
supply fan opening in the fan section and the coil
section. See Figure 14 for the location of the 22
screws.
19. Enter through the coil section access door (Figure 3)
and install ve 10 - 16 x 3/4-inch screws using the
holes in the coil section as a template to complete the
seal on the compressor side of the opening.
Step 20 Screw
Locations (7x)
Step 19 Screw
Locations (5x)
Step 23 Screw
Locations (5x)
Step 22 Screw
Locations (5x)
Water
Valve
Access
Door
LD15025
FIGURE 14 - INSTALL SCREWS AROUND FAN
OPENING
20. Enter the coil section through the coil access open-
ing in the coil section (Figure 4 on page 8). Use
the pre-punched holes in the coil section as a tem-
plate, and install seven 10 - 16 x 3/4-inch screws to
complete the seal on the bottom of the supply fan
opening.
21. While still in the coil access area, replace the two
compressor access panels removed in Step 5 (Fig-
ure 3).
22. While still in the coil access area, install the ve
10 - 16 x 3/4-inch screws above the supply fan
opening using the clearance holes in the coil sec-
tion as a template.
23. While still in the coil access area, install the ve
screws at the rear of the unit through the water
valve access opening using the clearance holes in
the coil section as a template (Figure 3).
24. Reinstall the water valve access cover panel re-
moved in Step 5 (Figure 3).
25. Reinstall the coil access panel removed in Step 5
(Figure 4).

JOHNSON CONTROLS
12
FORM 145.05-FA1
ISSUE DATE: 10/31/2019
SECTION 1 - SMALL CABINET FIELD ASSEMBLY
Gasket
Material
LD14774
FIGURE 15 - FILTER RACK
26. Verify the gasket material is intact and not dam-
aged on the lter section. If damaged, repair the
gasket prior to joining the coil section to the lter
section (Figure 15).
27. There is an angle on the top of the lter rack that
ts into a slot in the top of the coil section. Lift the
lter rack up and then down so that it hangs from
the slot in the top of the coil section. Figure 16 on
page 12 shows a detail of how the lter rack ts
into the slot at the top of the coil section.
Hanger
Angle
COIL
SECTION
FAN
SECTION
Slot
LD15024
FIGURE 16 - FILTER RACK ATTACHMENT
28. From Table 2 on page 8, use ten 10 - 16 x 3/4-
inch screws, ve on each side of the lter rack,
to fasten it to the coil section. Use the clearance
holes in the lter rack side mounting rails as a
template to identify the proper location for the in-
stallation of the screws.
29. Refer to the unit Installation, Operation, and Main-
tenance (IOM) manual (Form 145.05-NOM7) and
Quick Start-Up Guide (Form 145.05-SU7) to con-
tinue the installation and start-up.

JOHNSON CONTROLS 13
FORM 145.05-FA1
ISSUE DATE: 10/31/2019
2
SECTION 2 - MEDIUM CABINET FIELD REASSEMBLY
LD14978 LD14975
FIGURE 17 - MEDIUM CABINET: MODELS 050 AND 060
INTRODUCTION
The L-Series water-cooled self-contained units are
split and shipped in three segments, allowing for ease
of handling and transporting in a freight elevator or to
fit through a 36-inch doorway, for example. This man-
ual guides the installer in the reassembly of the three
sections based on the cabinet size. Medium cabinet in-
structions apply to models 050 and 060
The unit is assembled and tested at the factory prior to
shipment. The sections re then separated for shipment.
The three segments include:
• Compressor/condenser/coil section
• Control and supply air fan section
• Filter section
Place the sections on dollies or a hand pallet truck to
make it easier to maneuver and position the sections
for assembly. Ensure the dollies or pallet truck is posi-
tioned to support the unit by the perimeter base frame
and not the bottom pan. Failure to do so could result in
damage to the bottom of the unit.
PARTS
The following parts ship in the box of loose parts.
Table 3 on page 13 lists the parts that ship loose
with the fan compartment. Locate the box in the fan
compartment behind the pressure seal door beneath the
control compartment.
Table 4 on page 14 lists the parts that ship loose with
the filter section.
TABLE 3 - MEDIUM CABINET FAN COMPARTMENT
PARTS LIST
ITEM PART NUMBER DESCRIPTION QTY
1 021-30469-032 Bolt, 3/8-inch - 16 x
1-1/4 inch 11
2 021-30530-001 Screw, 10 - 16 x 3/4-inch 40
3 021-30437-006 Lock Washer, 3/8-inch 11
4 021-30437-000 Flat Washer, 3/8-inch 6

JOHNSON CONTROLS
14
FORM 145.05-FA1
ISSUE DATE: 10/31/2019
SECTION 2 - MEDIUM CABINET FIELD REASSEMBLY
TABLE 4 - MEDIUM CABINET FILTER COMPART-
MENT PARTS LIST
ITEM PART NUMBER DESCRIPTION QTY
1 021-30530-001 Screw, 10 - 16 x 3/4-inch 10
REASSEMBLY PROCEDURE
Do not connect the main unit power at
this time.
1. Position the unit sections in their approximate
nal location.
2. Remove the packaging material from the unit
sections.
3. Examine the unit sections for damage and report
the damage to the carrier.
4. Verify the gasket material around the supply fan
opening on the coil section is intact and not dam-
aged (Figure 18). If damaged, repair the gasket
prior to joining the two units.
Gasket
Material
LD14979
FIGURE 18 - VIEW OF GASKET MATERIAL APPLIED
AROUND SUPPLY FAN OPENING
5. Prior to pushing the two sections together, remove
the compressor access panels, water valve access
panel (Figure 19) from the coil section of the unit.
This allows access to install the bolts in Steps 17
and 18. Retain the panels and hardware for reinstal-
lation in Steps 22 and 25.
6. Prior to pushing the two sections together, remove
the coil access panel (Figure 20) from the fan sec-
tion of the unit. This allows access to install the
screws in Steps 20–21 and 24–25. Retain the pan-
els and hardware for reinstallation in Step 26.
Coil
Section
Access
Door
Compressor Access
Panels
Water
Valve
Access
Panels
LD14976
FIGURE 19 - COIL SECTION
Coil
Access
Panel
LD14980
FIGURE 20 - FAN SECTION

JOHNSON CONTROLS 15
SECTION 2 - MEDIUM CABINET FIELD REASSEMBLY
FORM 145.05-FA1
ISSUE DATE: 10/31/2019
2
7. Prior to pushing the two sections together, place
the wiring through the cutout and into the coil sec-
tion (Figure 21).
8. Push the two sections together so that the rectan-
gular opening in the coil section aligns with the
rectangular hole containing the mating plug con-
nections in the fan section (Figure 22).
Tuck wiring inside
the coil section prior
to pushing the
two sections together.
LD14771
FIGURE 21 - TUCK WIRING INSIDE COIL SECTION
COIL
SECTION
FAN
SECTION
LD14772
FIGURE 22 - ALIGN RECTANGULAR OPENINGS
ON COIL AND FAN SECTIONS
9. Connect the coil section plugs to the mating sock-
ets in the fan section (Figure 23 on page 15).
10. Align the two sections' top panels as shown in
Figure 24 on page 15.
035-23163-002 Rev -
MEDIUM CABINET
PLUG LAYOUT
Compressor A
Unload Solenoid
and Discharge
Thermistor
Compressor
Safety Chains -
Compressors
A & B
Discharge and
Suction Pressure
Transducers -
Compressors
A & B
Mixed Air Temp Sensor
Air Proving Switch
Dirty Filter Switch
Feeze-stat
Entering and Leaving
Water Temperature
Sensors
Condenser Water Flow
Switch (Optional)
HW/Steam Valve
(Optional)
Condenser Water
Valve (Optional)
Condenser Bypass or
Water Economy Valve
(Optional)
Compressor
Safety Chains -
Compressor C
Discharge and
Suction Pressure
Transducers -
Compressor C
JM
JB
JP
JN
JK
JL
JG
JH
JJ
JC
JQ
LD14977
FIGURE 23 - FAN SECTION SOCKETS
COIL
SECTION
FAN
SECTION
Align Top
Panels
LD14774
FIGURE 24 - ALIGN TOP PANELS

JOHNSON CONTROLS
16
FORM 145.05-FA1
ISSUE DATE: 10/31/2019
SECTION 2 - MEDIUM CABINET FIELD REASSEMBLY
11. Use a pipe clamp to align the two sections at
the base. In most cases, this helps align the pre-
punched holes in the coil section with the nut in-
serts in the fan section (Figure 25).
12. Access the lower reconnect area by opening the
pressure seal door on the fan section (Figure 26).
Use pipe clamp to
align the two sections
at the base.
LD14775
FIGURE 25 - ALIGN BASES
Pressure
Seal Door
LD14978
FIGURE 26 - OPEN PRESSURE SEAL DOOR
13. Remove the condenser access panel as indicated in
Figure 27.
14. After removing the condenser access panel, enter
the reconnect area of the fan section to perform
the next step (Figure 28).
15. From Table 3 on page 13, use Item 1, the 3/8-
inch -16 x 1-1/4 inch bolt; Item 3, the 3/8-inch
lock washer; and Item 4, the 3/8-inch at washer
to connect the fan and coil sections together as
directed in Steps 15, 16, and 17.
Condenser Access
Panel
LD14981
FIGURE 27 - REMOVE CONDENSER ACCESS
PANEL
Reconnect area
of fan section.
LD14778
FIGURE 28 - ENTER THE RECONNECT AREA

JOHNSON CONTROLS 17
SECTION 2 - MEDIUM CABINET FIELD REASSEMBLY
FORM 145.05-FA1
ISSUE DATE: 10/31/2019
2
Step 16
Nut Insert
Locations
Step 17
Nut Insert
Locations
Step 15
Base Rail Nut
Insert Locations
Condenser Access
Opening
Condenser
Access Panel
Removed
LD14980
FIGURE 29 - LOCATION OF NUT INSERTS IN FAN
SECTION
16. Enter through the condenser access opening where
the panel was removed in Step 13 and install three
of the 3/8-inch bolts, lock washers, and at wash-
ers from the coil section side into the base rail nut
inserts in the fan section of the unit (Figure 29).
Reinstall the condenser access panel (Figure 27 on
page 16).
17. Open the coil section access door (Figure 19 on
page 14) and install three 3/8-inch bolts, lock
washers, and at washers from the coil section into
the nut inserts in the fan section. Also install a bolt
and lock washer into the bottom base rail as indi-
cated in Figure 29.
18. Enter through the water valve access door (Figure
30) and install three 3/8-inch bolts, lock washers,
and at washers from the coil section into the nut
inserts in the fan section. Also install a bolt and
lock washer into the bottom base rail as indicated
in Figure 29.
19. From Table 3 on page 13, use Item 2, 10 - 16
x 3/4-inch screws to create a seal between the
supply fan opening in the fan section and the coil
section. See Figure 30 for the location of the 29
screws.
Step 22
Screw
Locations
(6x)
Step 19
Screw
Locations
(7x)
Step 23
Screw
Locations
(7x)
Step 20
Screw
Locations
(9x)
Water
Valve
Access
Door
LD14982
FIGURE 30 - INSTALL SCREWS AROUND FAN
OPENING
20. Enter through the coil section access door (Figure
19) and install seven 10 - 16 x 3/4-inch screws
using the holes in the coil section as a template to
complete the seal on the compressor side of the
opening.
21. Enter the coil section through the coil access open-
ing in the fan section (Figure 20 on page 14).
Use the pre-punched holes in the coil section as a
template and install nine 10 - 16 x 3/4-inch screws
to complete the seal on the bottom of the supply
fan opening.
22. While still in the coil access area, replace the two
compressor access panels removed in Step 5 (see
Figure 19).While still in the coil access area, in-
stall the six 10 - 16 x 3/4-inch screws above the
supply fan opening using the clearance holes in
the coil section as a template.
23. While still in the coil access area, install the seven
screws at the rear of the unit through the water
valve access opening using the clearance holes in
the coil section as a template.
24. Reinstall the water valve access cover panel re-
moved in Step 5 (Figure 19).
25. Reinstall the coil access panel removed in Step 5
(Figure 20).

JOHNSON CONTROLS
18
FORM 145.05-FA1
ISSUE DATE: 10/31/2019
SECTION 2 - MEDIUM CABINET FIELD REASSEMBLY
Gasket
Material
LD14983
FIGURE 31 - FILTER RACK
26. Verify the gasket material is intact and not dam-
aged on the lter section. If damaged, repair the
gasket prior to joining the coil section to the lter
section (Figure 31 on page 18).
27. There is an angle on the top of the lter rack that
ts into a slot in the top of the coil section. Lift the
lter rack up and then down so that it hangs from
the slot in the top of the coil section. Figure 32 on
page 18 shows a detail of how the lter rack ts
into the slot at the top of the coil section.
Hanger
Angle
COIL
SECTION
FAN
SECTION
Slot
LD15024
FIGURE 32 - FILTER RACK ATTACHMENT
28. From Table 4 on page 14, use ten 10 - 16 x 3/4-
inch screws, ve on each side of the lter rack,
to fasten it to the coil section. Use the clearance
holes in the lter rack side mounting rails as a
template to identify the proper location for the in-
stallation of the screws.
29. Refer to the unit Installation, Operation, and Main-
tenance (IOM) manual (Form 145.05-NOM7) and
Quick Start-Up Guide (Form 145.05-SU7) to con-
tinue the installation and start-up.

JOHNSON CONTROLS 19
FORM 145.05-FA1
ISSUE DATE: 10/31/2019
3
SECTION 3 - LARGE CABINET FIELD REASSEMBLY
LD15135 LD15136
FIGURE 33 - LARGE CABINET: MODELS 070, 085, 095, AND 105
INTRODUCTION
The L-Series water-cooled self-contained units can
be split and shipped in three segments, allowing for
ease of handling and transporting in a freight elevator
or to fit through a 36-inch doorway, for example. This
manual guides the installer in the reassembly of the
three sections based on the cabinet size. Large cabinet
instructions apply to models 070, 085, 095, and 105.
The unit was assembled and tested at the factory prior
to shipment. The sections were then separated for ship-
ment.
The three segments include:
• Compressor/condenser/coil section
• Control and supply air fan section
• Filter section
Place the sections on dollies or a hand pallet truck to
make it easier to maneuver and position the sections
for assembly. Ensure sure the dollies or pallet truck is
positioned to support the unit by the perimeter base
frame and not the bottom pan. Failure to do so could
result in damage to the bottom of the unit.
PARTS
The following parts ship in the box of loose parts.
Table 5 lists the parts that ship loose with the fan com-
partment. Locate the box in the fan compartment be-
hind the pressure seal door beneath the control com-
partment.
Table 6 lists the parts that ship loose with the filter sec-
tion.
TABLE 5 - LARGE CABINET FAN COMPARTMENT
PARTS LIST
ITEM PART NUMBER DESCRIPTION QTY
1 021-30469-032 Bolt, 3/8-inch - 16 x
1-1/4 inch 8
2 021-30530-001 Screw, 10 - 16 x 3/4-inch 50
3 021-30437-006 Lock Washer, 3/8-inch 8
4 021-30437-000 Flat Washer, 3/8-inch 8
5 021-30437-008 Lock Washer, 1/2-inch 6

JOHNSON CONTROLS
20
FORM 145.05-FA1
ISSUE DATE: 10/31/2019
SECTION 3 - LARGE CABINET FIELD REASSEMBLY
TABLE 6 - LARGE CABINET FILTER COMPART-
MENT PARTS LIST
ITEM PART NUMBER DESCRIPTION QTY
1 021-30530-001 Screw, 10 - 16 x 3/4-inch 8
REASSEMBLY PROCEDURE
Do not connect the main unit power at
this time.
1. Position the unit sections in their approximate
nal location.
2. Remove the packaging material from the unit
sections.
3. Examine the unit sections for damage and report
the damage to the carrier.
4. Remove the lifting lugs on the right side of the fan
section (Figure 34). Retain the 1/2-inch bolts for
use in Step 12. Also remove the coil access panel
(Figure 34) from the fan section of the unit. This
allows access to install the screws in Steps 17 and
19–21 of this procedure. Retain the panel and hard-
ware for reinstallation in Step 22.
5. Verify the gasket material around the supply fan
opening on the coil section is intact and not dam-
aged (Figure 35). If damaged, repair the gasket
prior to joining the two units.
Coil Access
Panel Lifting Lugs
LD15137
FIGURE 34 - FAN SECTION - PANEL AND LIFTING
LUG REMOVAL
Gasket
LD15138
FIGURE 35 - VIEW OF GASKET MATERIAL
APPLIED AROUND SUPPLY FAN
OPENING
Upper Wire
Opening
Condenser
Access
Panels
Middle Wire
Opening
Bottom Wire
Opening
Lifting Lugs
LD15139
FIGURE 36 - COIL SECTION - PANEL AND LIFTING
LUG REMOVAL
6. Prior to pushing the two sections together, remove
the lifting lugs on the left side of the coil section
(Figure 36). Retain the 1/2-inch bolts for use in
Step 12. Also remove the three condenser access
panels and screws (Figure 36), and retain for reas-
sembly in Step 18.
7. Prior to pushing the two sections together, ensure
the coil section wiring is inside the compressor
area so it will not get pinched between the two
sections when they join together.
8. Push the coil and fan sections of the unit together.
9. Align the two sections' top panels as shown in
Figure 37 on page 21.