Enviro Series D, HL SERIES Installation Operation & Maintenance
HORIZONTAL, LOW PROFILE FAN COILS
Series D
INSTALLATION, OPERATION & MAINTENANCE
Supersedes ET115.24-NOM11 (417)
Form ET115.24-NOM11 (118)
TABLE OF CONTENTS
Safety Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Safety Considerations ....................... 1
FORM ET115.24-NOM11 (118)
Section One - Receipt & Initial Installation
HL Series Features.......................... 2
Preface ................................... 3
Unpacking & Inspection ...................... 3
Handling & Installation ....................... 3
Drain Pan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Coils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Cooling/Heating Medium Connections ........... 6
Auxiliary Drain Pans ......................... 7
Ductwork Connections . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical Connections ....................... 7
Electrical Enclosure ......................... 7
Telescoping Bottom Panel .................... 8
Model HLP Horizontal Fan Coil Optional
Telescoping Bottom Panel Assembly,
Typical Installation Instructions ............. 9
Service & Clearance Requirements ............ 10
Height Restricted Application . . . . . . . . . . . . . . . . . 11
Width Restricted Application..................12
External Space Requirements ................ 13
Section Two - Start-Up
General.................................. 14
Cooling/Heating System.....................14
Air System Balancing ....................... 14
Motor & Fan Data .......................... 15
Water System Balancing .................... 16
Controls Operation ......................... 16
Electric Resistance Heater Assembly........... 18
Electrical Wiring & Controls .................. 18
Valves & Piping............................ 18
Filters, Throwaway ......................... 19
Drain....................................20
Optional Item Installation .................... 21
Condensate Pump ...................... 21
Current Switch Device ................... 21
DierentialAirPressureSwitch ............ 22
Discharge Air Sensor .................... 23
Low Temperature Cutout Control ........... 23
Unit Weight Data . . . . . . . . . . . .. ...........24
Condensate Float Switch Installation........ 25
Replacement Parts......................... 26
Section Four - Inspection &
Start-Up Checklist
Inspection & Start-up Checklist ............... 27
Section Five - Fan Relay Board
Installation ............................... 28
Reference Wire Diagram .................... 30
Ratings ..................................31
Tools Needed for Installation/Troubleshooting .... 32
Jumpers ................................. 33
Test Points ............................... 33
Screw Terminal Signals ..................... 34
Checking Wire Harnesses ................... 35
Section Three - Normal Operation &
Periodic Maintenance
General.................................. 17
Motor/Blower Assembly ..................... 17
Fan Deck ................................ 17
Coil .....................................18
ii
Section Six - Troubleshooting
Fan Relay Board........................... 36
PSC Motor ............................... 37
EC Motor ................................ 40
Cooling System ........................... 44
Electric Heat .............................. 45
ENVIRO-TEC
FORM ET115.24-NOM11 (118)
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 servicing 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.
ENVIRO-TEC
Protect adjacent ammable materials
when brazing, Use flame and heat
protection barriers where needed.
Have re extinguisher available and
ready for immediate use.
1
FORM ET115.24-NOM11 (118)
SECTION ONE - RECEIPT & INITIAL INSTALLATION
HL SERIES FEATURES
Controls
Blower
Condensate
pump
Electric heat
Supply air
Coils
Motor
Removable
drain pan
Outside air duct collar
Return air
Right or left hand coil
and drain connections,
same or opposite end
Filter access
(not shown)
Valve package
(factory mounted
or shipped loose)
Auxiliary
drain pan
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.
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.
2
ENVIRO-TEC
FORM ET115.24-NOM11 (118)
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 flammable
material when welding, brazing 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 must be led. 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.
CODE COMPLIANCE
This equipment has been manufactured and certied in
accordance with UL 1995-Standard for Safety, Heating
and Cooling Equipment (CAN/CSA C22.2 NO 236M90) and bears the Electrical Testing Laboratories
(ETL) Mark under ETL File No.: 3036742-002.
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.
ENVIRO-TEC
3
FORM ET115.24-NOM11 (118)
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 eects 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 may 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 integrated hanger
brackets with optional grommet isolators and brass
inserts for use with 3/8" all thread hanger rod.
TYPICAL CEILING INSTALLATION
A
SIDE VIEW
Figure 1: Typical ceiling installation
The unit’s drain pan is factory sloped toward the
drain connection when the unit is
installed level and plumb.
4
ENVIRO-TEC
DRAIN PAN
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. See illustration below. Auxiliary drip pan
to catch condensed moisture from valves and piping
must be sloped toward the drain pan.
FORM ET115.24-NOM11 (118)
The condensate drain pan can be removed without re-
quiring common hand tools. The drain pan is secured
to the unit by four sheet metal tabs that slide into four
respective slots on the drain pan.
Prior to removing the drain pan, make sure all
accessories and eld connections have been
appropriately disconnected from the drain pan.
The drain pan can be removed in three steps. First,
push the drain pan engagement lever to unlock the
drain pan from the coil. Next, while continuing to
push the lever, support the weight of the drain pan
and slide the drain pan towards the drain connection.
After the drain pan slides approximately 1.5 inches,
it will be completely disengaged from the coil.
Lastly, support the weight of the drain pan and
safely lower the drain pan for servicing. Reinstall
prior to unit startup.
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.
Figure 2a
Figure 2b Figure 2c
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.
ENVIRO-TEC
Figure 2d
Figure 2a-2d: Typical drain pan removal
5
FORM ET115.24-NOM11 (118)
COOLING/HEATING MEDIUM CONNECTIONS
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. Not for use with
domestic or potable water systems.
Submittals and Product Catalogs detailing unit operation,
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
rag to help dissipate heat encountered during brazing.
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.
Figure 3a
Figure 3b
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
damage to the coil tubing. Over-tightening must be
avoided to prevent distorting the union seal surface
and destroying the union. Due to the diversity of valve
packages for this product, install the valve packages with
no leaks or interference between components during
operation and maintenance. In the case of eld installed
valves and piping, the chilled water valve cluster (or
metering device 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. All valves, pipes,
and components must be suciently supported to ensure
structural integrity and proper operation of the unit.
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.
Figure 3c
Figure 3d
Figure 3a-3d: Typical auxiliary drain pan removal
6
ENVIRO-TEC
FORM ET115.24-NOM11 (118)
AUXILIARY DRAIN PANS
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.
After the connections are completed, the system should
then be tested for leaks. Since some components are not
designed to hold pressure with a gas, hydronic systems
should be tested with water.
Prior to removing the auxiliary drain pan, make sure
all accessories have been appropriately disconnected
from the auxiliary drain pan. The auxiliary drain pan
can be removed in three steps. First, remove the two
screws that attached the auxiliary drain pan to the
support bracket near the inlet of the unit. Next, support
the weight of the auxiliary drain pan and slide the
auxiliary drain pan towards the discharge of the unit so
the auxiliary drain pan lip will clear the drain pan lip.
After the auxiliary drain pan slides approximately 0.75
inches, the auxiliary drain pan will be free from the
drain pan. Lastly, support the weight of the auxiliary
drain pan and safely lower for servicing. Reinstall prior
to unit startup.
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
undesirable system operation 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 dierent and each unit on a project may
be dierent, 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.
ELECTRICAL ENCLOSURE
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.
Units can be congured from the factory with duct
collars for attaching ductwork. The factory suggests
using galvanized sheet metal ductwork or a exible
canvas attached to the duct collars using sheet metal
screws. Duct connections should follow SMACNA
standards and national and local codes.
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.
Figure 4: Electrical enclosure
The electrical control enclosure provides access to the
electrical compartment. This compartment houses all
electric heat and control components. Terminal strips
are furnished for simple power and control wiring
connections. Multiple knockouts allow wiring entries
from either side of the compartment.
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. After installation and before energizing
the unit, verify voltage and check that all electrical
connections are tight. Electrical connetions should be
periodically checked for tightness.
ENVIRO-TEC
7
FORM ET115.24-NOM11 (118)
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.
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.
This unit is listed to UL/CSAS standards. All
modications to line voltage wiring must be performed
in accordance with the NEC and inspected by ETL to
maintain product listing. Unauthorized modication to
any wiring may impact unit performance and void ETL
listing and/or product warranty.
TELESCOPING BOTTOM PANEL
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 field on applications where
inltration of ceiling plenum air into
space is undesired. Telescoping skirt
and collar assembly must be field
adjusted to assure a proper t between
lter frame and louvered inlet panel
assembly. Refer to assembly submittal
drawings for specic dimensions.
8
ENVIRO-TEC
FORM ET115.24-NOM11 (118)
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.
FHP UNIT CHASSIS
10 1/2"
264
7 [178]
10 1/2 [267]
AIR
OPEN THIS
PANEL FIRST
FINISHED
CEILING LINE
TYPICAL INSTALLATION METHODS
CEILING GRID
"T" BAR
ACOUSTIC FIBRE
CEILING TILE
NOTE: CEILING "T" BAR GRID MAY NOT SUPPORT TELESCOPING
BOTTOM PANEL ASSEMBLY. BOTTOM PANEL ASSEMBLY
MAY REQUIRE INDEPENDENT SUPPORT.
TELESCOPING BOTTOM
PANEL FRAME EXTRUSION
SOLID OR LOUVERED
BOTTOM PANEL
SUSPENDED GRID/TILE CEILING SYSTEM
INLET COLLAR INSTALLATION
SHIM AS
REQUIRED
TELESCOPING BOTTOM
PANEL FRAME EXTRUSION
SHT MTL OR WOOD
SCREW AS REQUIRED,
SEE NOTES 4 & 6
SOLID OR LOUVERED
BOTTOM PANEL
SHT MTL OR WOOD
SCREW AS REQUIRED,
SEE NOTES 4 & 6
STUD/DRYWALL CEILING SYSTEM
SCREW THE TELESCOPING PANEL TO
THE CHASSIS 2 SCREWS BOTH SIDE
METAL OR WOOD
CEILING STUD
DRYWALL
CEILING
SHIM AS
REQUIRED
TABLE 1: TELESCOPING BOTTOM PANEL WEIGHTS (LBS./KG)
DESCRIPTION
Telescoping bottom panel 10 [5] 11 [5] 12 [5] 14 [6] 16 [7] 17 [8] 20 [9] 21 [10]
ENVIRO-TEC
02 03 04 06 08 09 10 12
UNIT SIZE
9
SERVICE AND CLEARANCE REQUIREMENTS
FORM ET115.24-NOM11 (118)
HORIZONTAL, LOW PROFILE EXPOSED UNITS
10
ENVIRO-TEC
FORM ET115.24-NOM11 (118)
SERVICE AND CLEARANCE REQUIREMENTS: HEIGHT RESTRICTED APPLICATION
CORNER PANELS
SHOWN ROTATED 90°
0" CLEARANCE BETWEEN UNIT AND STRUCTURE
UNIT
INSTALLED
HALF
OPENED
FULLY
OPENED
CORNER PANELS ROTATE
ABOUT PIVOT POINT
CORNER PANELS ROTATED 90°
CAN BE LIFTED AND REMOVED
11" [279] MIN
REQUIRED CLEARANCE
BESIDE UNIT
REQUIRED CLEARANCE
HORIZONTAL, LOW PROFILE EXPOSED UNITS
0"
ABOVE UNIT
4" [102] MIN
REQUIRED CLEARANCE
BELOW UNIT
ENVIRO-TEC
11
FORM ET115.24-NOM11 (118)
SERVICE AND CLEARANCE REQUIREMENTS: WIDTH RESTRICTED APPLICATION
CORNER PANELS
SHOWN LIFTED AND
ROTATED 5°
UNIT
INSTALLED
HALF
OPENED
FULLY
OPENED
CLEARANCE BETWEEN
3"
[76]
STRUCTURE AND UNIT
3"
[76]
LIFT AND ROTATE CORNER PANEL
OFF OF PIVOT POINT
ABIDE BY APPLICABLE
CODES AND STANDARDS
REGUARDING ACCESS
FOR ELECTRICAL OR
PLUMBING COMPONENTS
1" [25] MIN
REQUIRED CLEARANCE
ABOVE UNIT
3" [76] MIN
REQUIRED CLEARANCE
BESIDE UNIT
(PANEL REMOVAL
REQUIRED FOR
ELECTRICAL ACCESS)
HORIZONTAL, LOW PROFILE EXPOSED UNITS
12
DROP CORNER PANELS
STRAIGHT DOWN
ENVIRO-TEC
FORM ET115.24-NOM11 (118)
8"
206
8 1/2"
216
OPTIONAL AUXILIRY
DRIP PAN
3"
77
SUPPLY AIR
OPENIG WIDTH
R10 1/2"
264
CONTROL ENCLOSURE
SEE NOTE 9
FRONT VIEW
LH SHOWN RH
OPPOSITE
22"
559
TOP VIEW
SERVICE AND CLEARANCE REQUIREMENTS: EXTERNAL SPACE REQUIREMENTS
TOP VIEW
22"
559
OPTIONAL
SIDE ACCESS
CONTROL ENCLOSURE
SEE NOTE 5
8"
1"
25
204
SUPPLY AIR
OPENING WIDTH
FRONT VIEW
OPTIONAL AUXILIARY
10 1/2"
267
AIR FILTER CLEARANCE
HORIZONTAL, LOW PROFILE PLENUM AND FREE RETURN
NOTES:
1. All chilled water piping that projects beyond the condensate pan or the optional auxiliary drip pan
must be field insulated by others.
2. Auxiliary drip pan shown above is optional, and is mounted on the outlet side of the drain pan.
3. Drain pan is installed with the outlet tube(s) on cooling coil connection end of coil on 4-pipe units with
optional opposite end connection.
4. Dimensions shown on this drawing apply to standard CW and HW valve packages. Refer to the
Piping Package Catalog for valve package code details. Contact factory for details on valve packages
using non-standard or customer furnished components.
5. Provide sufficient clearance to access electrical components and comply with all applicable codes and
ordinances.
8 1/2"
216
DRIP PAN
ENVIRO-TEC
13
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