Enviro HLF, HLP, HLE Installation Operation & Maintenance
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
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