HORIZONTAL, LOW PROFILE FAN COILS
B Y JOHNSON C O NTROL S
InstallatIon, operatIon & MaIntenance
MODELS HLF / HLP / HLE
New Release
Form ET115.24-NOM5 (908)
LD13884
ForM Et115.24-noM5 (908)
TABLE OF CONTENTS
TABLE OF CONTENTS ..........................................................................................................................2
SAFETY SYMBOLS ...............................................................................................................................3
SAFETY CONSIDERATIONS .................................................................................................................3
SECTION ONE - RECEIPT & INITIAL INSTALLATION ................................................................4
HL SERIES FEATURES..........................................................................................................................4
PREFACE ................................................................................................................................................4
UNPACKING & INSPECTION ................................................................................................................5
HANDLING & INSTALLATION ...............................................................................................................5
Drain Pan ...........................................................................................................................................6
Coils ...................................................................................................................................................6
HL SERIES DIMENSIONAL DATA .........................................................................................................9
ARI STANDARD RATINGS...................................................................................................................10
COOLING/HEATING MEDIUM CONNECTIONS ..................................................................................10
AUXILIARY DRAIN PANS .................................................................................................................... 11
HEATING CAPACITY ............................................................................................................................11
Condensate Trap ............................................................................................................................12
DUCTWORK CONNECTIONS ..............................................................................................................12
ELECTRICAL CONNECTIONS ............................................................................................................12
Electrical Enclosure .......................................................................................................................13
TELESCOPING BOTTOM PANEL .......................................................................................................13
MODEL HLP HORIZONTAL FAN COIL OPTIONAL TELESCOPING BOTTOM
PANEL ASSEMBLY, TYPICAL INSTALLATION INSTRUCTIONS ......................................................14
MODEL HLP HORIZONTAL FAN COIL OPTIONAL TELESCOPING BOTTOM
PANEL ASSEMBLY ..............................................................................................................................15
SECTION TWO - START-UP .......................................................................................................16
GENERAL .............................................................................................................................................16
COOLING/HEATING SYSTEM .............................................................................................................16
AIR SYSTEM BALANCING ..................................................................................................................16
WATER SYSTEM BALANCING ...........................................................................................................17
CONTROLS OPERATION ....................................................................................................................17
MOTOR AND FAN DATA ......................................................................................................................17
SECTION THREE - NORMAL OPERATION & PERIODIC MAINTENANCE ..............................18
GENERAL .............................................................................................................................................18
MOTOR/BLOWER ASSEMBLY ............................................................................................................18
Fan Deck .........................................................................................................................................18
COIL ......................................................................................................................................................18
ELECTRIC RESISTANCE HEATER ASSEMBLY .................................................................................18
ELECTRICAL WIRING & CONTROLS .................................................................................................19
VALVES & PIPING ................................................................................................................................19
FILTERS, THROWAWAY ......................................................................................................................19
UNIT WEIGHT DATA (LBS.) .................................................................................................................20
DRAIN ...................................................................................................................................................20
REPLACEMENT PARTS ......................................................................................................................20
EXAMPLE WIRING DIAGRAMS ..........................................................................................................21
SECTION FOUR - INSPECTION & START-UP CHECKLIST .....................................................23
2
Johnson Controls
FORM ET115.24-NOM5 (908)
SAFETY SYMBOLS
The following symbols are used in this document to alert the reader to areas of potential hazard:
DANGER indicates an imminently
hazardous situation which, if not
avoided, will result in death or serious
injury.
WARNING indicates a potentially
hazardous situation which, if not
avoided, could result in death or serious injury.
SAFETY CONSIDERATIONS
The equipment covered by this manual is designed for
safe and reliable operation when installed and operated
within its design specication limits. To avoid personal
injury or damage to equipment or property while
installing or operating this equipment, it is essential
that qualied, experienced personnel perform these
functions using good judgment and safe practices. See
the following cautionary statements.
ELECTRICAL SHOCK HAZARDS.
All power must be disconnected prior
to installation and serving this equipment. More than one source of power
may be present. Disconnect all power
sources to avoid electrocution or shock
injuries.
MOVING PARTS HAZARDS. Motor and Blower must be disconnected
prior to opening access panels. Motors
can start automatically, disconnect
all power and control circuits prior to
servicing to avoid serious crushing or
dismemberment injuries.
CAUTION identies 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.
Check that the unit assembly and component weights can be safely supported
by rigging and lifting equipment.
All assemblies must be adequately
secured during lifting and rigging by
temporary supports and restraints until equipment is permanently fastened
and set in its nal location.
All unit temporary and permanent
supports must be capable of safely
supporting the equipment’s weight and
any additional live or dead loads that
may be encountered. All supports must
be designed to meet applicable local
codes and ordinances.
All fastening devices must be designed
to mechanically lock the assembly in
place without the capability of loosening or breaking away due to system
operation and vibration.
HOT PARTS HAZARD. Electric Resistance heating elements must be disconnected prior to servicing. Electric
Heaters may start automatically, disconnect all power and control circuits
prior to servicing to avoid burns.
JOHNSON CONTROLS
Protect adjacent ammable materials
when brazing, Use ame and heat protection barriers where needed. Have
re extinguisher available and ready
for immediate use.
3
ForM Et115.24-noM5 (908)
Motor
(not shown)
Right or left hand
coil and drain pan
connections, same
or opposite end
Electric Heat
Controls
(Bottom access)
Coils
Drain Pan
Supply Air
Filter
Access
(not
shown)
Blower
Return Air
Plenum
(Model HLP)
SECTION ONE - RECEIPT & INITIAL INSTALLATION
HL SERIES FEATURES
PREFACE
ENVIRO-TEC® fan coils represent a prudent investment
which can, with proper installation, operation, and
regular maintenance, give trouble-free operation and
long service.
Your equipment is initially protected under the
manufacturer’s standard warranty; however, this
warranty is provided under the condition that the steps
outlined in this manual for initial inspection, proper
installation, regular periodic maintenance, and everyday
operation of the equipment be followed in detail. This
manual should be fully reviewed in advance of any
actual work being done on the equipment. Should
any questions arise, please contact your local Sales
Representative or the factory BEFORE proceeding.
The equipment covered by this manual is available with
a vast variety of options and accessories. Consult the
approved unit submittal, order acknowledgement, and
other manuals for details on the options and accessories
provided with the equipment on each project.
lD13881
No attempt should be made to handle,
install, or service any unit without
following safe practices regarding
mechanical equipment.
All power must be disconnected before
any installation or service should be attempted. More than one power source
may be supplied to a unit. Power to
remote mounted control devices may
not be supplied through the unit. Never
wear bulky or loose tting clothing
when working on any mechanical
equipment. Gloves should only be
worn when required for proper protection from heat or other possible injury. Safety glasses or goggles should
always be worn when drilling, cutting,
or working with chemicals such as
refrigerants or lubricants.
4
Johnson Controls
FORM ET115.24-NOM5 (908)
Never pressurize any equipment beyond specied operating pressures.
Always pressure test with some inert
uid or gas such as clear water or dry
nitrogen to avoid possible damage or
injury in the event of a leak or component failure during testing.
Always protect adjacent ammable
material when welding or soldering.
Use suitable heat shield material to
contain sparks or drops of solder.
Have re extinguisher available for
use when welding or brazing.
The manufacturer assumes no responsibility for personal
injury or property damage resulting from improper
or unsafe practices during the handling, installation,
service, or operation of any equipment.
UNPACKING & INSPECTION
All units are carefully inspected at the factory throughout
the manufacturing process under a strict detailed quality
assurance program, and where possible, all major
components and subassemblies are carefully tested for
proper operation and veried to be in full compliance
with the factory manufacturing documents. Customer
furnished components such as control valves, switches
and DDC controls are not factory tested.
Each unit is carefully packaged for shipment to avoid
damage during normal transport and handling. The
equipment should always be stored in a dry place in the
proper orientation as marked on the carton.
All shipments are made F.O.B. factory and it is the
responsibility of the receiving party to inspect the
equipment upon arrival. Any obvious damage to the
carton and/or its contents should be recorded on the bill
of lading and a claim should be led with the freight
carrier.
After determining the condition of the carton exterior,
carefully remove each unit from the carton and inspect
for hidden damage. At this time check to make sure that
“furnished only” items such as switches, thermostats,
etc. are accounted for. Any hidden damage should be
recorded and immediately reported to the carrier and a
claim led as before. In the event a claim for shipping
damage is led, the unit, shipping carton, and all packing
must be retained for physical inspection by the freight
carrier. All equipment should be stored in the factory-
shipping carton with internal packing in place until
installation.
At the time of receipt, the equipment type and
arrangement should be verified against the order
documents. Should any discrepancy be found, the local
Sales Representative should be notied immediately
so that the proper action may be instituted. Should
any question arise concerning warranty repairs, the
factory must be notified BEFORE any corrective
action is taken. Where local repairs or alterations can
be accomplished, the factory must be fully informed as
to the extent and expected cost of those repairs before
work is begun. Where factory operations are required,
the factory must be contacted for authorization to return
equipment and a Return Authorization Number will be
issued. Unauthorized return shipments of equipment
and shipments not marked with an authorization number
will be refused. In addition, the manufacturer will not
accept any claims for unauthorized expenses.
HANDLING & INSTALLATION
While all equipment is designed for durability and
fabricated for sturdy construction and may present a
rugged appearance, great care must be taken to assure
that no force or pressure be applied to the coil, piping
or drain stub-outs during handling. Also, depending
on the options and accessories, some units could
contain delicate components that may be damaged by
improper handling. Wherever possible, all units should
be maintained in an upright position and handled by
the chassis as close as possible to the mounting point
locations.
In the case of a full cabinet unit, the unit must obviously
be handled by the exterior casing. This is acceptable
providing the unit is again maintained in an upright
position and no impact forces are applied that may
damage internal components, access panels, or painted
surfaces. The equipment covered in this manual IS NOT
suitable for outdoor installations. The equipment should
never be stored or installed where it may be subjected
to a hostile environment such as rain, snow, or extreme
temperatures.
JOHNSON CONTROLS
5
ForM Et115.24-noM5 (908)
During and after installation, special care must be taken
to prevent foreign material such as paint, plaster, and
drywall dust from being deposited in the drain pan or
on the motor or blower wheels. Failure to do so may
have serious adverse effects on unit operation and in
the case of the motor and blower assembly, may result
in immediate or premature failure. All manufacturers’
warranties are void if foreign material is allowed to be
deposited on the motor or blower wheels of any unit.
Some units and/or job conditions may require some form
of temporary covering during construction.
While the manufacturer does not become involved
in the design and selection of support methods and
components, it should be noted that unacceptable
system operating characteristics and/or performance
might result from improper or inadequate unit structural
support. In addition, adequate clearance must be
provided for service and removal of the equipment and
its accessory components. Anchoring the equipment in
place is accomplished by using the mounting points
provided and positioning the unit to maintain the unit
on a LEVEL plane. The drain pan is internally sloped
toward the outlet connection. Care must be taken to
insure that the unit drain pan does not slope away from
the outlet connection. All units are supplied with hanger
brackets with rubber grommet isolators and brass inserts
for use with 3/8” all thread hanger rod.
Drain Pan
lD13882
Standard drain pans are externally insulated, single wall
galvanized steel and can be equipped with a secondary
drain connection. The HL drain pan is easily removable
for cleaning or reversing connections. Auxiliary drip
pan to catch condensed moisture from valves and piping
must be sloped toward the drain pan.
Coils
All fan coils are available in 2 or 4 pipe congurations.
Heating coils are available in reheat or preheat position.
Heating and cooling coils are available with right, left
or opposite side connections.
The unit’s drain pan is factory sloped
toward the drain connection when the
unit is installed level and plumb.
Verify that the proper types of service are actually
provided to the unit. On units with steam heating
coils, the maximum steam pressure applied to the unit
should never exceed 15 PSIG. The drain piping and
steam trap should be sized and routed to allow for
proper condensate ow. The electrical service to the
unit should be compared to the unit nameplate to verify
compatibility. The routing and sizing of all piping, and
the type and sizing of all wiring and other electrical
components such as circuit breakers, disconnect
switches, etc. should be determined by the individual
job requirements and should not be based on the size
and/or type of connection provided on the equipment.
All installations should be made in compliance with all
governing codes and ordinances. Compliance with all
codes is the responsibility of the installing contractor.
6
Johnson Controls
ForM Et115.24-noM5 (908)
HL SERIES DIMENSIONAL DATA
Drawings are subject to change without notice. Refer to www.enviro-tec.com for current submittal drawings.
Model HLF (Free Return)
Johnson Controls
lD13885
7
FORM ET115.24-NOM5 (908)
HL SERIES DIMENSIONAL DATA
Drawings are subject to change without notice. Refer to www.enviro-tec.com for current submittal drawings.
Model HLP (Plenum)
8
LD13886
JOHNSON CONTROLS
Drawings are subject to change without notice. Refer to www.enviro-tec.com for current submittal drawings.
(TYPICAL EACH SIDE)
PARTIAL REAR VIEW
FRONT VIEW
TOP VIEW
SIDE VIEW
DIMENSIONS - In [mm]
ordinances.
Provide sufficient clearance to access electrical
controls and comply with applicable codes and
field to match individual job requirements.
8. Field piping casing penetrations must be cut in the
7. Internal insulation of field piping may be required.
optional electrical enclosure, coil, and drain pan.
6. Fixed bottom panel is removable for access to
access to filter and fan assembly.
5. Louvered bottom panel is hinged and removable for
indicated to provide proper drain slope.
4. Drain piping should be routed through casing opening
optional features.
3. Electrical enclosure size and location may vary with
2. Left hand unit shown, right hand unit opposite.
conversion.
dimensions ±1/4" [6mm]. Metric values are soft
1. All dimensions are Inches [millimeters]. All
NOTES:
DRAIN TUBE EXIT
1-1/8 K.O. FOR
ELECTRICAL ENTRY
TWO 7/8 K.O. FOR
RESILIENT GROMMET
ROD HOLES WITH
3/8 [10] DIA HANGER
3-1/2 [89]
1-5/8 [41]
[76]
3
[94]
3-11/16
[137]
5-3/8
RETURN GRILLE
STAMPED STEEL
SUPPLY GRILLE
STAMPED STEEL
[838]
33
[57]
2-1/4
[210]
8-1/4
[32]
1-1/4
[305]
12
[165]
6-1/2
F
E
[38]
1-1/2
[762]
30
[38]
1-1/2
D
C B
A
5-1/435-1/2
43
6-1/4
46
23-1/2
25
6-1/4
6-1/4
5-1/4
67-1/2
27-1/2
39-1/2
47-1/2
59-1/2
6-1/4
5-1/4
F
6-1/4
6-1/4
7-1/4
80
70
B C ED
47
57
7-1/4
77
67
37
6-1/4
A
UNIT
SIZE
27-1/2
39-1/2
40
47-1/2
59-1/2
50
60
20
30
40
50
60
19-1/2
[133][902][1092][159][597][1168]
[159]
[159]
[133]
[1715]
[699]
[1207]
[1511]
[1003] [133]
[159]
[159]
[159]
[184][1778]
[2032]
[940]
[1448]
[1194]
[159]
[184]
[1702]
[1956]
[1016]
[1270]
[1524]
[1511]
[495]
[1003]
[1207]
[699]
HL SERIES DIMENSIONAL DATA
Model HLE Horizontal Exposed Fan Coil
Front Stamped Supply Grille, Bottom Stamped Return Grille
ForM Et115.24-noM5 (908)
Johnson Controls
lD13883
9
COOLING/HEATING MEDIUM CONNECTIONS
AIRFLOW POWER
CFM QT QS Flow Rate WPD INPUT
(DRY FLOW) (BTUH) (BTUH) GPM ft-wg (WATTS)
HLF 20 3 10 330 7800 6100 1.8 1.6 81
HLF 25 3 10 450 11500 8500 2.6 3.4 138
HLF 30 3 10 640 13900 11000 3.2 7.6 152
HLF 40 3 10 800 18500 14300 4.2 3.7 263
HLF 50 3 10 1140 24000 19300 5.4 7.4 402
HLF 60 3 10 1590 34000 26500 7.6 14.6 489
HLF 20 4 10 320 8500 6000 1.8 3.1 77
HLF 25 4 10 430 11600 8600 2.6 6.6 135
HLF 30 4 10 610 16900 12600 3.9 10.9 151
HLF 40 4 10 780 21900 16400 4.9 7.2 261
HLF 50 4 10 1040 28500 225
00 6.4 12.9 380
HLF 60 4 10 1510 41400 31300 9.2 27.1 466
HLP 20 3 10 270 6900 5300 1.6 1.2 81
HLP 25 3 10 420 10900 8100 2.5 3.1 132
HLP 30 3 10 540 12600 9800 2.8 6.1 152
HLP 40 3 10 770 18100 13900 4.1 3.5 263
HLP 50 3 10 1010 22300 18200 5.0 7.1 372
HLP 60 3 10 1460 32300 25600 7.2 13.3 489
HLP 20 4 10 260 7400 5200 1.6 2.5 77
HLP 25 4 10 410 10900 8100 2.5 6.0 130
HLP 30 4 10 520 15600 11500 3.5 10.0 151
HLP 40 4 10 740 21300 15900 4.8 6.9 261
HLP 50 4 10 970 27200 21400 6.1 11.9 361
HLP 60 4 10 1370 38600
29700 8.6 23.8 466
HLE 20 3 10 240 6300 4800 1.5 1.1 75
HLE 25 3 10 310 8900 6500 2.0 2.2 127
HLE 30 3 10 450 11100 8600 2.5 4.9 135
HLE 40 3 10 650 16300 12400 3.7 2.9 245
HLE 50 3 10 820 19500 15700 4.4 5.6 337
HLE 60 3 10 1130 27500 21500 6.1 10.0 402
HLE 20 4 10 240 6300 4700 1.5 2.1 65
HLE 25 4 10 300 8700 6300 2.0 4.0 125
HLE 30 4 10 440 13600 10000 3.1 7.9 130
HLE 40 4 10 630 18900 14000 4.2 5.5 235
HLE 50 4 10 780 23400 18300 5.3 9.1 321
HLE 60 4 10 1040 31900 24200 7.1 16.8 383
COIL COOLING CAPACITY
WATER
MODEL /
SIZE Rows FPI
NOTE: Based on 80°F DB
and 67°F WB EAT, 45°F
EWT, 10°F temperature
ris e, hig h fan speed.
Motor type is PSC and
motor voltage is 115/1/60.
Airflow under dry coil conditions. Model HLE tested
at 0.0" external static pressure. Models HLF and HLP
tested at 0.05" external
static pressure.
Toxic residues and loose particles resulting from manufacturing and eld piping techniques
such as joint compounds, soldering ux, and metal shavings may be present in the unit and
the piping system. Special consideration must be given to system cleanliness when connecting
to solar, domestic or potable water systems.
ARI STANDARD RATINGS
FORM ET115.24-NOM5 (908)
10
LD13887
JOHNSON CONTROLS
QS
(MBH
)
QS
(MBH
)
QS
(MBH
)
QS
(MBH
)
GPM WPD GPM WPD GPM WPD GPM WPD
20 250 8.6 0.4 0.2 15. 7 0.8 0.9 19.7 1.0 0.3 22.9 1.2 0.5
25 400 15.0 0.6 0.6 21.0 1.1 3.1 30.0 1.5 1.1 28.3 1.4 1.8
HLP 30 500 16.1 0.8 0.6 29.2 1.5 3.2 38.3 2.0 1.2 43.4 2.2 0.7
HLF 40 750 23.6 1.2 1.5 40.5 2.1 1.6 55.2 2.8 1.1 64.9 3.3 1.8
50 1000 28.7 1.5 0.7 53.7 2.7 2.9 73.7 3.8 2.0 86.5 4.4 3.4
60 1400 36.1 1.9 1.1 66.9 3.4 4.7 92.4 4.7 3.4 108.3 5.5 5.6
20 250 7.9 0.4 0.3 14. 0 0.8 1.5 19.2 1.0 0.5 17.4 0.9 0.8
25 350 10.8 0.6 0.5 19.3 1.0 2.6
27.2 1.4 0.9 25.4 1.3 1.5
30 450 13.5 0.7 0.9 24.0 1.3 4.8 30.7 1.6 1.7 34.4 1.8 1.0
40 650 20.4 1.1 2.0 34.0 1.8 1.7 46.0 2.4 1.2 49.6 2.6 1.9
50 850 22.5 1.2 0.7 40.7 2.1 3.1 53.0 2.8 2.1 59.4 3.0 3.3
60 1200 30.9 1.6 1.2 55.4 2.9 5.5 72.6 3.8 3.9 80.0 4.1 6.0
2 ROW 3 ROW 4 ROW
HLE
UNIT
TYPE
UNIT
SIZE
NOM INAL
CFM
1 ROW
NOTE: Based on 70°F DB EAT, 180°F EWT, 40°F temperature drop, high
fan speed.
HEATING CAPACITY
FORM ET115.24-NOM5 (908)
LD13888
Submittals and Product Catalogs detailing unit operation,
AUXILIARY DRAIN PANS
controls, and connections should be thoroughly
reviewed BEFORE beginning the connection of the
various cooling and/or heating mediums to the unit.
All accessory valve packages should be installed as
required, and all service valves should be checked for
proper operation.
If coil and valve package connections are to be made
with “sweat” or solder joint, care should be taken to
assure that no components in the valve package are
subjected to a high temperature which may damage seals
or other materials. Many two-position electric control
valves, depending on valve operation, are provided with
a manual-opening lever. This lever should be placed
in the “open” position during all soldering or brazing
operations. Valve bodies should be wrapped with a wet
Mounted directly to the unit drain pan, AUXILIARY
DRAIN PANS may also be secured by the mounting
holes to eld supports or to the unit coil utilizing pipe
hanger wire, plastic ties, or metal strapping.
rag to help dissipate heat encountered during brazing.
After the connections are completed, the system should
If the valve package connection at the coil is made with
a union, the coil side of the union must be prevented
from twisting (“backed up”) during tightening to prevent
then be tested for leaks. Since some components are not
designed to hold pressure with a gas, hydronic systems
should be tested with water.
damage to the coil tubing. Over-tightening must be
avoided to prevent distorting the union seal surface and
and piping, the chilled water valve cluster (or expansion
valve on DX units) should be installed in such a way that
any dripping or sweating is contained in the auxiliary
drain pan or other device. Valves and TXV’s should be
secured or supported to avoid damage to coil headers
or distributor tubes.
JOHNSON CONTROLS
destroying the union. In the case of eld installed valves
Refrigerant systems should be tested with dry nitrogen
rather than air to prevent the introduction of moisture
into the system. In the event that leaking or defective
components are discovered, the Sales Representative
must be notied BEFORE any repairs are attempted.
All leaks should be repaired before proceeding with
the installation.
All water coils must be protected from
freezing after initial lling with water.
Even if the system is drained, unit coils
may still hold enough water to cause
damage when exposed to temperatures
below freezing.
LD13889
11
FORM ET115.24-NOM5 (908)
NOTE:
"A" DIMENSION (IN.) DEPTH MUST BE EQUAL TO OR
GREATER THAN UNIT'S NEGATIVE FAN PRESSURE AT
CONDENSATE PAN (INWC).
"B" DIMENSION MUST BE EQUAL TO (A x 1.5) + ID OF
DRAIN LINE.
A
B
Condensate Trap
LD13891
After system integrity has been established the piping
should be insulated in accordance with the project
specications. ALL chilled water piping and valves or
refrigerant suction piping not located over drain pans
must be insulated to prevent damage from sweating.
This includes factory and eld piping inside the unit
cabinet.
The drain should always be connected and piped to an
acceptable disposal point. For proper moisture carry-
off, the drain piping should be sloped away from the
unit at least 1/8” per foot. A drain trap may be required
by local codes and it is strongly recommended for odor
containment.
DUCTWORK CONNECTIONS
All ductwork and/or supply and return grilles should
be installed in accordance with the project plans and
specications. If not included on the unit or furnished
®
from the factory, ENVIRO-TEC
supply and return
grilles are available in a variety of types.
All units must be installed in non-combustible areas.
Some models are designed to be connected to duct-work
with a MINIMUM amount of external static pressure.
Consult the approved submittals and the product catalog
for unit external static pressure limitations.
Units provided with outside air for ventilation should
have some form of low temperature protection to
prevent coil freeze-up.
It should be noted that none of these methods would
adequately protect a coil in the event of power failure.
The safest method of freeze protection is to use glycol
in the proper percent solution for the coldest expected
air temperature.
The manufacturer assumes no responsibility for
undesir able sy stem op eration due to improper
design, equipment or component selection, and/or
installation of ductwork, grilles, and other eld supplied
components.
ELECTRICAL CONNECTIONS
The unit nameplate lists the unit electrical characteristics
such as the required supply voltage, fan and heater
amperage and required circuit ampacities. The unitwiring diagram shows all unit and eld wiring. Since
each project is different and each unit on a project may
be different, the installer must be familiar with the
wiring diagram and nameplate on the unit BEFORE
beginning any wiring. This unit is not acceptable for
installation in hazardous/explosive areas.
12
JOHNSON CONTROLS
Electrical Enclosure
LD13890
The optional bottom hinged electrical enclosure
provides access to a spacious electrical compartment.
This compartment houses all electric heat and control
components. Terminal strips are furnished for simple
power and control wiring connections.
FORM ET115.24-NOM5 (908)
All eld wiring should be done in accordance with
governing codes and ordinances. Any modication of
the unit wiring without factory authorization will result
in voiding of all factory warranties and will nullify any
agency listings.
The manufacturer assumes no responsibility for any
damages and/or injuries resulting from improperly eld
installed or wired components.
TELESCOPING BOTTOM PANEL
All components furnished for eld installation, by either
the factory or the controls contractor should be located
and checked for proper function and compatibility. All
internal components should be checked for shipping
damage and all electrical connections should be
tightened to minimize problems during start-up.
Any devices such as fan switches or thermostats
that have been furnished from the factory for eld
installation must be wired in strict accordance with the
applicable wiring diagrams. Failure to do so could result
in personal injury or damage to components and will
void all manufacturers’ warranties.
The fan motor(s) should never be controlled by any
wiring or device other than the factory furnished switch
or thermostat/switch combination, without factory
authorization.
LD13892
The telescoping bottom panel allows for fully recessing
the unit while permitting service access into the ceiling
plenum. The architectural ceiling panel is nished with
a durable powder coat paint.
Portions of the inlet louver not directly
below unit inlet may require covering in the eld on applications where
inltration of ceiling plenum air into
space is undesired. Telescoping skirt
and collar assembly must be eld adjusted to assure a proper t between
lter frame and louvered inlet panel
assembly. Refer to assembly submittal
drawings for specic dimensions.
JOHNSON CONTROLS
13
FORM ET115.24-NOM5 (908)
NOTES:INLET COLLAR INSTALLATION
STUD/DRYWALL CEILING SYSTEMSUSPENDED GRID/TILE CEILING SYSTEM
TYPICAL INSTALLATION METHODS
SIDE VIEW
infiltration of ceiling plenum air into space is undesired.
may require covering in the field on applications where
9. Portions of the inlet louver not directly below unit inlet
Filter removal direction is optional.
telescoping skirt, after final adjustment of skirt location.
8. Attach standard filter rack assembly to bottom of
assure close fit of filter rack to louvered bottom panel.
7. Telescoping skirt assembly must be field adjusted to
airflow pattern. Shim frame to support as required.
to do so may result in poor bottom panel fit and improper
6. Frame assembly must be installed flat and square. Failure
frame assembly.
5. Remove solid and louvered bottom panels before mounting
located and drilled to suit individual job requirements.
4. Mounting hardware not provided. Mounting holes must be
3. Left hand unit shown, right hand unit opposite.
2. All drawings subject to change without prior notice.
±1/4" [6mm]. Metric values are soft conversion.
1. All dimensions are inches [millimeters]. All dimensions
REQUIRE INDEPENDENT SUPPORT.
BOTTOM PANEL ASSEMBLY. BOTTOM PANEL ASSEMBLY MAY
NOTE: CEILING "T" BAR GRID MAY NOT SUPPORT TELESCOPING
MAX.
7-1/8 [181]
5-1/4 [133]
MIN.
RACK, SEE NOTE 8
STANDARD FILTER
CASING
"HLP" UNIT
FAN DECK
INSTALLED TOWARD
GUIDE FLANGE
SEE NOTE 4
ON COLLAR AND UNIT CASING,
SCREWS THRU MATING FLANGES
INSTALL SELF-DRILLING SHT MTL
WITH REAR OF UNIT
ALIGN INLET COLLAR
SEE NOTES 4 & 6
SCREW AS REQUIRED,
SHT MTL OR WOOD
REQUIRED
SHIM AS
SEE NOTES 4 & 6
SCREW AS REQUIRED,
SHT MTL OR WOOD
CEILING
DRYWALL
PANEL FRAME EXTRUSION
TELESCOPING BOTTOM
BOTTOM PANEL
SOLID OR LOUVERED
REQUIRED
SHIM AS
CEILING STUD
METAL OR WOOD
BOTTOM PANEL
SOLID OR LOUVERED
PANEL FRAME EXTRUSION
TELESCOPING BOTTOM
"T" BAR
CEILING GRID
CEILING TILE
ACOUSTIC FIBRE
TPANEL FIRS
OPEN THIS
[57]
2-1/4
10 [254]
[387]
15-1/4
CEILING LINE
FINISHED
MODEL HLP HORIZONTAL FAN COIL
Optional Telescoping Bottom Panel Assembly, Typical Installation Instructions
Drawings are subject to change without notice. Refer to www.enviro-tec.com for current submittal drawings.
14
LD13893
JOHNSON CONTROLS
FORM ET115.24-NOM5 (908)
SIDE VIEWS
FRONT VIEWS
BOTTOM VIEW
DIMENSIONS - In [mm]
5. 1/4 Turn latch, (2) qty for standard sizes,
(3) qty for sizes 40-60.
opposite.
values are soft conversion.
All dimensions ±1/4" [6mm]. Metric
NOTES:
must be field adjusted to assure a
proper fit between filter frame and
louvered inlet panel assembly.
4. Telescoping skirt and collar assembly
2. Left hand unit shown, right hand unit
3. Portions of the inlet louver not directly
1. All dimensions are Inches [millimeters].
below unit inlet may require covering in the
field on applications where infiltration of
ceiling plenum air into space is undesired.
MIN.
MAX.
5-1/4 [133]
7-1/8 [181]
E
TYP
[356]
14
D
2 [51] TYP
[44]
1-3/4
16 LOUVERS PER BANK
SEE NOTE 5
[387]
15-1/4
[57]
2-1/4
MIN. CEILING OPENING
30-1/4 [768] =
OUTSIDE FRAME
32 [813]
C
OUTSIDE FRAME
B =
CEILING OPENING
A = MIN.
B
TYP.
[813]
32
10 [254]
COVER
HNGD. BOTTOM
CONTROL ENCL.
CEILING
LINE
LOUVERED BOTTOM
PANEL, SEE NOTE 3
L
C
UNIT
E
35-1/2
39-1/2
27-1/2
59-1/2
67-1/2
47-1/2
4-1/4
3-1/4
4-1/4
3-1/4
D
3-1/4
4-1/414-1/2
40
20
38-1/8
C
19-1/2
17-1/2
B
50
46
24-1/2
34-1/2
29-1/2
60
80
70
A
UNIT
SIZE
30
25
48-1/8
44-1/8
40
50
60
68-1/8
78-1/8
58-1/8
STANDARD PANEL
[699]
[902]
[1003]
[1207]
[1511]
[1715][108]
[83]
[108]
[83]
[108]
[83]
[368][1016][968]
[445]
[495]
[1168]
[1270]
[622]
[749]
[876]
[1524]
[1778]
[2032]
[1121]
[1222]
[1730]
[1984]
[1476]
TELESCOPING INLET SKIRT &
COLLAR ASSEMBLY, SEE NOTE 4
MODEL HLP HORIZONTAL FAN COIL
Optional Telescoping Bottom Panel Assembly
Drawings are subject to change without notice. Refer to www.enviro-tec.com for current submittal drawings.
JOHNSON CONTROLS
LD13894
15
SECTION TWO - START-UP
FORM ET115.24-NOM5 (908)
GENERAL
Before beginning any start-up operation, the startup personnel should familiarize themselves with the
unit, options and accessories, and control sequence to
understand the proper system operation. All personnel
should have a good working knowledge of general
start-up procedures and have the appropriate start-up
and balancing guides available for consultation.
The initial step in any startup operation should be a nal
visual inspection. All equipment, plenums, duct-work,
and piping should be inspected to verify that all systems
are complete and properly installed and mounted, and
that no debris or foreign articles such as paper or drink
cans are left in the units or other areas. Each unit should
be checked for loose wires, free blower wheel operation,
and loose or missing access panels or doors. Except as
required during start-up and balancing operations, no
fan coil units should be operated without all the proper
ductwork attached, supply and return grilles in place,
and all access doors and panels in place and secure.
A clean lter of the proper size and type must also be
installed. Failure to do so could result in damage to the
equipment or building and furnishings, and/or void all
manufacturers’ warranties.
COOLING/HEATING SYSTEM
Prior to the water system start-up and balancing, the
chilled/hot water systems should be ushed to clean
out dirt and debris, which may have collected in the
piping during construction. During this procedure,
all unit service valves must be in the closed position.
This prevents foreign matter from entering the unit and
clogging the valves and metering devices. Strainers
should be installed in the piping mains to prevent
this material from entering the units during normal
operation.
During system filling, air venting from the unit is
accomplished by the use of the standard manual, or
optional automatic, air vent tting installed on the coil.
In the case of the manual air vent tting, the screw
should be turned counterclockwise no more than 1-½
turns to operate the air vent. Automatic air vents may
be unscrewed one turn counterclockwise to speed initial
venting but should be screwed in for automatic venting
after start-up operations.
The air vent provided on the unit is not
intended to replace the main system air
vents and may not release air trapped
in other parts of the system. Inspect the
entire system for potential air traps and
vent those areas as required, independently. In addition, some systems may
require repeated venting over a period
of time to properly eliminate air from
the system.
AIR SYSTEM BALANCING
All duct-work must be complete and connected, and all
grilles, lters, access doors and panels must be properly
installed to establish actual system operating conditions
BEFORE beginning air balancing operations.
Each individual unit and attached duct-work is a unique
system with its own operating characteristics. For this
reason, air balancing is normally done by balance
specialists who are familiar with all procedures required
to properly establish air distribution and fan system
operating conditions. These procedures should not be
attempted by unqualied personnel.
After the proper system operation is established,
the actual unit air delivery and the actual fan motor
amperage draw for each unit should be recorded in
a convenient place for future reference such as the
inspection, installation, & start-up check sheet, a copy
of which is provided on the back of this manual. Contact
the Sales Representative or the factory for additional
copies of this sheet.
16
JOHNSON CONTROLS
MOTOR AND FAN DATA
FORM ET115.24-NOM5 (908)
UNIT
SIZE
20
25
30
40
50
60
NOTES:
1. Motor electrical data is nameplate data. Actual data will vary with application.
2. 230 volt motor is nameplated for 208/230/1/60. Use 230 volt motor data for 208 volt applications.
3. Unit size 30, 208/230 and 277 volt motors are 1/12 HP at high tap.
FAN
SPEED
High (1) 1/30
Medium (1) 1/50 0.4 39 0.3 49 0.3 48
Low (1) 1/60 0.3 33 0.3 43 0.3 41
High (1) 1/15
Medium (1) 1/30 0.9 90 0.3 80 0.3 80
Low (1) 1/60 0.5 60 0.2 60 0.2 60
High (1) 1/10
Medium (1) 1/30 0.8 76 0.3 75 0.5 65
Low (1) 1/60 0.5 47 0.2 54 0.4 41
High (1) 1/6
Medium (1) 1/12 1.5 162 0.5 171 0.5 152
Low (1) 1/40 0.6 75 0.4 79 0.3 74
High
Medium
Low
High (2) 1/6
Medium (2) 1/12 3.0 324 1.0 342 1.0 304
Low (2) 1/40 1.2 150 0.6 158 0.6 148
MOTOR
H.P.
(1) 1/8
(1) 1/6 2.5 257 1.4 233 1.0 255
(1) 1/15 1.3 145 0.6 109 0.5 132
(1) 1/12 1.5 156 0.5 106 0.5 151
(1) 1/40 0.8 69 0.3 63 0.3 86
(1) 1/40 0.6 75 0.4 62 0.3 84
# OF
FANS
1
1
2
2
3
4
115 VOLTS 208/230 VOLTS 277 VOLTS
AMPS WATTS AMPS WATTS AMPS WATTS
0.8 57 0.6 77 0.3 71
1.0 125 0.5 120 0.5 120
1.9 165 0.8 158 0.8 162
2.5 261 1.4 284 1.0 254
1.6 215 0.9 216 0.8 214
5.0 522 2.8 568 2.0 508
WATER SYSTEM BALANCING
A complete knowledge of the hydronic system, its
components, and controls is essential to proper water
system balancing and this procedure should not be
attempted by unqualied personnel. The system must
be complete and all components must be in operating
condition BEFORE beginning water system balancing
operations.
Each hydro nic system has d ifferent op erating
characteristics depending on the devices and controls
in the system. The actual balancing technique may vary
from one system to another.
After the proper system operation is established, the
appropriate system operating conditions such as various
water temperatures and ow rates should be recorded
in a convenient place for future reference.
Before and during water system balancing, conditions
may exist which can result in noticeable water
noise or undesired valve operation due to incorrect
system pressures. After the entire system is balanced,
these conditions will not exist on properly designed
systems.
CONTROLS OPERATION
Before proper control operation can be veried all other
systems must be in proper operation. The correct water
and air temperatures must be present for the control
function being tested. Some controls and features are
designed to not operate under certain conditions.
A wide range of controls and electrical options and
accessories may be used with the equipment covered
in this manual. Consult the approved unit submittals,
order acknowledgement, and other manuals for detailed
information regarding each individual unit and its
controls. Since controls and features may vary from
one unit to another, care should be taken to identify
the controls to be used on each unit and their proper
control sequence. Information provided by component
manufacturers regarding installation, operation, and
maintenance of their individual controls is available
upon request.
JOHNSON CONTROLS
17
FORM ET115.24-NOM5 (908)
SECTION THREE - NORMAL OPERATION & PERIODIC MAINTENANCE
GENERAL
Each unit on a job will have its own unique operating
environmen t and conditions that may dictate a
maintenance schedule for that unit that is different
from other equipment on the job. A formal schedule of
regular maintenance and an individual unit log should
be established and maintained. This will help to achieve
the maximum performance and service life of each unit
on the job.
Information regarding safety precautions contained in the preface at the
beginning of this manual should be
followed during any service and maintenance operations.
For more detailed information concerning service
operations, consult your Sales Representative or the
Factory.
MOTOR/BLOWER ASSEMBLY
The type of fan operation is determined by the control
components and their method of wiring, and may vary
from unit to unit. Refer to the wiring diagram for each
unit for that unit’s individual operating characteristics.
Motors are permanently lubricated, PSC type and do
not require eld lubrication.
Fan Deck
LD13896
The fan assembly is easily removed from the unit
without disconnecting the ductwork for service access
to motors and blowers at, or away from the unit.
Should the assembly require more extensive service,
the motor/ blower assembly may be removed from the
unit to facilitate such operations as motor or blower
wheel/housing replacement, etc. Dirt and dust should
not be allowed to accumulate on the blower wheel or
housing. This can result in an unbalanced blower wheel
condition that can damage a blower wheel or motor.
The wheel and housing may be cleaned periodically
using a vacuum cleaner and a brush taking care not to
dislodge the factory balancing weights on the blower
wheel blades.
COIL
Coils may be cleaned in place by removing the motor/
blower assemblies and brushing the entering air face
between ns with a soft brush parallel to ns. Do not
brush perpendicular to n orientation as damage may
occur. Brushing should be followed by cleaning with a
vacuum cleaner. If a compressed air source is available,
the coil may also be cleaned by blowing air through the
coil ns from the leaving air face. Vacuuming should
again follow this. Units provided with the proper type
of air lters, replaced regularly, may require periodic
coil cleaning.
ELECTRIC RESISTANCE HEATER ASSEMBLY
Electric resistance heaters typically require no normal
periodic maintenance when unit air lters are changed
properly. Other conditions and equipment may affect the
operation and service life in the system. The two most
important operating conditions for an electric heater are
proper airow and proper supply voltage. High supply
voltage and/or poorly distributed or insufcient airow
over the element will result in element overheating. This
condition may result in the heater cycling on the high
limit thermal cutout. Open wire type heaters provided
have an automatic reset switch with a back-up high
limit thermal switch. Automatic reset switches are as
the name implies; they reset automatically after the
heater has cooled down. High limit thermal switches
must be replaced once the circuit has been broken.
The high limit thermal cutout device is a safety device
only and is not intended for continuous operation. With
proper unit application and during normal operation,
the high limit thermal cutout will not operate. This
device only operates when some problem exists and
ANY condition that causes high limit cutout MUST be
corrected immediately. High supply voltage also causes
excessive amperage draw and may result in tripping
of the circuit breaker or blowing of the fuses on the
incoming power supply.
18
JOHNSON CONTROLS
FORM ET115.24-NOM5 (908)
UNIT
SIZE
COIL FACE
AREA
RETURN AIR
GRILLE FREE AREA
SUPPLY AIR
GRILLE FREE AREA
FILTER FACE
AREA
NOMINAL FILTER SIZES
20 1.04 [.09] 0.47 [.04] 0.40 [.04] 1.18 [.11]
20 x 8.5 x 1
[508 x 216 x 25]
25 1.35 [.13] 0.58 [.05] 0.50 [.05] 1.54 [.14]
26 x 8.5 x 1
[660 x 216 x 25]
30 1.56 [.14] 0.68 [.06] 0.56 [.05] 1.77 [.16]
30 x 8.5 x 1
[762 x 216 x 25]
40 2.08 [.19] 0.81 [.08] 0.80 [.07] 2.36 [.22]
(2) 20 x 8.5 x 1
[508 x 216 x 25]
50 2.60 [.24] 1.01 [.09] 0.96 [.09] 2.95 [.27]
(1) 20, (1) 30 x 8.5 x 1
[508, 762 x 216 x 25]
60 3.13 [.29] 1.15 [.11] 1.20 [.11] 3.54 [.33]
(2) 30 x 8.5 x 1
[762 x 216 x 25]
Face Area, Free Area and Filter Sizes
NOTES:
1. Face and free areas are in square feet
[square meters].
2. Filter sizes are in inches [millimeters].
3. Free area of ENVIRO -TEC®Model
HLE and T elescoping Bottom Panel
return grilles.
4. Free area of ENVIRO -TEC®Model
HLE supply grille and minimum free
area allowable for a supply grille
supplied by others.
ELECTRICAL WIRING & CONTROLS
The electrical operation of each unit is determined by
the components and wiring of the unit and may vary
from unit to unit. Consult the wiring diagram for the
actual type and number of controls provided on each
unit. The integrity of all electrical connections should be
veried at least twice during the rst year of operation.
Afterwards, all controls should be inspected regularly
for proper operation. Some components may experience
erratic operation or failure due to age. Wall thermostats
may also become clogged with dust and lint and should
be periodically inspected and cleaned to provide reliable
operation.
When replacing any components such as fuses,
contactors, or relays, use only the exact type, size, and
voltage component as furnished from the factory. Any
deviation without factory authorization could result
in personnel injury or damage to the unit and will
void all factory warranties. All repair work should be
done in such a manner as to maintain the equipment in
compliance with governing codes and ordinances or
testing agency listings.
More specific information regarding the use and
operating characteristics of the standard controls offered
by this manufacturer is contained in other manuals.
VALVES & PIPING
No formal maintenance is required on the valve package
components most commonly used with fan coil units
other than a visual inspection for possible leaks in the
course of other normal periodic maintenance. In the
event that a valve should need replacement, the same
precautions taken during the initial installation to protect
the valve package from excessive heat should also be
used during replacement. In some cases, the valve
actuator may fail and usually can be replaced without
removing valve body from piping.
FILTERS, THROWAWAY
The type of throwaway lter most commonly used on
fan coil units should be replaced on a regular basis.
The time interval between each replacement should be
established based on regular inspection of the lter and
should be recorded in the log for each unit. Refer to the
chart below for recommended lter size for each product
type and size. If the replacement lters are not purchased
from the factory, the lters used should be the same type
and size as that furnished from or recommended by the
factory. Pleated media or extended surface lters should
not be used since the high air pressure drops encountered
with these types of lters is not compatible with the
type of fan coil unit covered in this manual. Consult the
factory for applications using lter types other than the
factory standard or optional product.
JOHNSON CONTROLS
LD13897
19
20 25 30 40 50 60
40 [18] 51 [23] 59 [27] 69 [ 31] 91 [41] 111 [ 50]
45 [20] 56 [25] 65 [30] 80 [ 36] 103 [ 47] 123 [ 56]
119 [ 54] 138 [ 63] 155 [70] 181 [82] 220 [ 100] 257 [117]
1 ROW - DRY 8 [4] 10 [5] 11 [5] 13 [6] 15 [7] 18 [8]
1 ROW - W ET 10 [5] 12 [5] 13 [6] 15 [7] 18 [ 8] 21 [10]
2 ROW - DRY 11 [5] 13 [6] 15 [7] 18 [8] 22 [10] 26 [12]
2 ROW - W ET 14 [6] 16 [7] 18 [8] 22 [10] 27 [12] 32 [15]
3 ROW - DRY 14 [6] 17 [8] 19 [9] 24 [11] 29 [ 13] 34 [15]
3 ROW -
WET 17 [8] 21 [10] 24 [ 11] 30 [14] 36 [16] 42 [19]
4 ROW - DRY 17 [8] 20 [9] 23 [ 10] 29 [13] 36 [16] 42 [19]
4 ROW - W ET 21 [10] 25 [11] 29 [13] 36 [16] 45 [20] 53 [24]
COIL
ROWS
COMPONENT
UNIT SIZE
HLF BASE UNIT
HLP BASE UNIT
HLE BASE UNIT
NOTE: Unit weight data is in pounds [kilograms].
UNIT WEIGHT DATA (lbs.)
DRAIN
The drain should be checked before initial start-up and
at the beginning of each cooling season to assure that
the lines are clear. If it is clogged, steps should be taken
to clear the debris so that condensate will ow easily.
Periodic checks of the drain should be made during the
cooling season to maintain a free owing condensate.
Should the growth of algae and/or bacteria be a concern,
consult an air conditioning and refrigeration supply
organization familiar with local conditions for chemicals
available to control these agents.
REPLACEMENT PARTS
Factory replacement parts should be used wherever
po ssible to maintain t he unit perfo rmance and
operating characteristics and the testing agency listings.
Replacement parts may be purchased through the local
Sales Representative.
Contact the local Sales Representative or the factory
be fore attempting any unit modifications. Any
modications not authorized by the factory could result
in personnel injury and damage to the unit and could
void all factory warranties.
20
FORM ET115.24-NOM5 (908)
When ordering parts, the following information must be
supplied to ensure proper part identication:
1. Complete unit model number
2. Unit hand connection (right or left hand) while
facing the direction of airow at the inlet
3. Complete part description including any numbers.
On warranty replacements, in addition to the information
previously listed, the project CO # that appears on the
unit nameplate, is required. Contact the factory for
authorization to return any parts such as defective parts
replaced in warranty. All shipments returned to the
factory MUST be marked with a Return Authorization
Number, which is provided by the factory.
All equipment and components sold through the Parts
Department are warranted under the same conditions
as the standard manufacturer’s warranty with the
exception that the warranty period is 12 months unless
the component is furnished as warranty replacement.
Parts furnished as warranty replacements are warranted
for the remaining term of the original unit warranties.
JOHNSON CONTROLS
LD13898
FORM ET115.24-NOM5 (908)
EXAMPLE WIRING DIAGRAMS
"Example Wiring Diagram - Typical 24 VAC Control Drawing (Refer to unit control enclosure for actual order-specic drawing)"
JOHNSON CONTROLS
84-10-0615-REV05
21
FORM ET115.24-NOM5 (908)
EXAMPLE WIRING DIAGRAMS (Continued)
"Example Wiring Diagram - Typical 24 VAC Control Drawing (Refer to unit control enclosure for actual order-specic drawing)"
22
84-10-0205-REV05
JOHNSON CONTROLS
SECTION FOUR - INSPECTION & START-UP CHECKLIST
RECEIVING & INSPECTION
Unit Received Undamaged.
Unit Arrangement/Hand Correct.
HANDLING & INSTALLATION
Unit Mounted Level & Square.
Proper Electrical Service Provided.
Proper Service Switch/Disconnect Provided
Proper Chilled Water Line Size to Unit.
Proper Refrigerant Line Sizes to Unit.
Proper Steam Condensate Trap on Return Line.
All Services to Unit In Code Compliance.
COOLING/HEATING CONNECTIONS
Protect Valve Package Components From Heat.
Connect Field Piping To Unit.
Install Drain Line & Traps As Required
Install Condensate Pan under Piping as Required
FORM ET115.24-NOM5 (908)
Unit Received Complete As Ordered
Unit Structural Support Complete & Correct
Proper Access Provided For Unit & Accessories
Proper Overcurrent Protection Provided
Proper Hot Water Line To Unit
Proper Steam Line Sizes To Unit
Proper Steam Supply Pressure to Unit (15psi Max)
All Shipping Screws & Braces Removed
Mount Valve Packages
Pressure Test All Piping for Leaks
Insulate All Piping as Required
DUCTWORK CONNECTIONS
Install Ductwork, Fittings & Grilles As Required.
Control Outside Air For Freeze Protection.
ELECTRICAL CONNECTIONS
Refer To Unit Wiring Diagram.
All Field Wiring In Code Compliance.
UNIT STARTUP
General Visual Unit & System Inspection.
Record Ambient Temperature.
Close All Unit Isolation Valves.
Fill Systems With Water/Refrigerant.
All Ductwork & Grilles In Place.
Start Fans, Etc.
Check All Ductwork & Units For Air Leaks.
Record All Final Settings For Future Use.
Check All Dampers For Proper Operation.
Verify Proper Heating Operation.
Proper Supply & Return Grille Type & Size Used
Insulate All Ductwork as Required
Connect Incoming Power Service or Services
Record Electrical Supply Voltage
Check All Wiring for Secure Connections
Flush Water Systems
Vent Water Systems as Required
All Unit Panels & Filters in Place
Check for Overload Condition of All Units
Balance Air Systems As Required
Check Piping & Ductwork For Vibration
Verify Proper Cooling Operation
Reinstall All Covers & Access Panels
JOHNSON CONTROLS
23
©2008 Johnson Controls, Inc.
P.O. Box 423, Milwaukee, WI 53203 www.johnson-
controls.com
Printed in USA ET115.24-NOM5 (908)
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