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Cabinet Heater G*Y/D*Y Series

INSTALLATION, OPERATION, & MAINTENANCE MANUAL

5

SECTION ONE — Installation, Cont’d.

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 
IEC Factory Representative should be notified immediately 
so that proper action may be taken.

NOTE:  Should any questions arise concerning warranty 

repairs, the factory must be notified BEFORE any 

corrective action is taken.

Prepare Jobsite and Units

To save time and to reduce the possibility of costly errors, 
set up a complete sample installation in a typical room at 
the jobsite. Check all the critical dimensions such as field 
piping, wiring, and duct connection to ensure they agree 
with job requirements. Refer to job drawings and product 
dimension drawings as required (See Figure 1 for sample 
drawing). Instruct all trades in their part of the installation. 
Should any discrepancies be discovered, contact your local 
representative before continuing with unit installations.

For each unit, confirm incoming and control power 
requirements match available power source. Refer to unit 
nameplate and wiring diagram.

1.  Check all tags on unit to determine if shipping 

screws are to be removed. Remove screws as 
directed.

2.  Rotate the fan wheel by hand to ensure that the 

fan is unrestricted and can rotate freely. Check 
for shipping damage and fan obstructions. Adjust 
blower wheel as required.

3.  Perform “Dry Fit” of valve assembly that may be 

shipped unattached to unit coil assembly. Should 
any questions arise on fit up please contact your 
local representative immediately.

Handling and Installation

While all equipment is designed and fabricated with 
sturdy materials, 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, plenum 
sections, or 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 force is applied that may damage 
internal components 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.

Before, 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 manufacturer’s 
warranties are void if foreign material is allowed to be 
deposited in the drain pan or on the motor or blower 
wheels of any unit. Some units and/or job conditions 
may require some form of temporary covering during  
construction.

Содержание G Y Series

Страница 1: ...ATION MAINTENANCE MANUAL Vertical Horizontal Vertical floor or wall mounted for concealed or exposed applications Horizontal ceiling for exposed or partially exposed applications Hot water coils steam...

Страница 2: ...of its products International Environmental Corporation IEC works continually to improve its products As a result the design and specifications of each product may be changed without notice and may no...

Страница 3: ...placement Parts SECTION FIVE Equipment Start Up 32 Check List IMPORTANT 33 Terms and Conditions SECTION ONE Installation 4 Preface 4 Unpacking and Inspection 5 Prepare Jobsite and Units 5 Handling and...

Страница 4: ...pressures as shown on unit rating plate Always pressure test with an inert fluid or gas such as clear water or dry nitrogen to avoid possible damage or injury in the event of a leak or component fail...

Страница 5: ...uired 3 Perform Dry Fit of valve assembly that may be shipped unattached to unit coil assembly Should any questions arise on fit up please contact your local representative immediately Handling and In...

Страница 6: ...t and recessed units have removable front panels to allow access to the unit Hydronic Heat units have either right or left hand piping Reference piping locations by facing the front of the unit airflo...

Страница 7: ...48 1219 06 55 1397 53 1346 08 55 1397 60 1524 10 77 1956 74 1880 12 77 1956 83 2083 Table 2 Horizontal Ceiling Coil Removal Minimum Service Clearance Width 12 18 in see table 2 28 in 28 in Figure 4 D...

Страница 8: ...he floor is able to support the weight of the unit See submittal drawings for nominal unit weight 3 Ensure wall behind unit is smooth and plumb if necessary install furring strips on walls with irregu...

Страница 9: ...t into the wall of the conditioned areas They cover the recess opening on all sides and are easily removed for access to the unit A top bottom and side framing studs are required to properly secure th...

Страница 10: ...ies INSTALLATION OPERATION MAINTENANCE MANUAL 10 SECTION ONE Installation Cont d Figure 8 Style W Framed Wall Panel Install Diagram Figure 9 Style Z Framed Wall Panel Style Z Figure 10 Style Z Framed...

Страница 11: ...ing the mounting points provided with 3 8 all thread rod and other hardware not supplied with unit The unit must be positioned so that the coil or electric heat elements are on a LEVEL PLANE Other fie...

Страница 12: ...penetrate the rear of the fan coil cabinet Hot extension tubes must be properly insulated Hydronic Heating Connections After mounting the unit it is then ready for the various service connections suc...

Страница 13: ...n accordance with the project specifications This is the responsibility of the installing or insulation contractor Electrical Connections The electrical service to the unit should be compared to the u...

Страница 14: ...g codes and ordinances Any modification of the unit wiring without factory authorization will void all of the factory warranties and will nullify any agency listings The manufacturer assumes no respon...

Страница 15: ...om the factory supply and return grilles should be provided as recommended in the product catalog For units with no return air ductwork check local code requirements for possible application restricti...

Страница 16: ...ected 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 Clean dirt dust...

Страница 17: ...struction 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 shoul...

Страница 18: ...ould not be attempted by unqualified personnel The system must be complete and all components must be in operating condition BEFORE beginning water system balancing operations Each hydronic system has...

Страница 19: ...N8 Line Service Voltage 9 CN9 PSC Motor Connection 10 CN10 ECM Connection 11 ECM Fan Speed Adjustment 12 Ground Connection 13 LED Diagnostics for Multimeter Diagnostics 85 Control Board E025 71481108...

Страница 20: ...ed IEC 24V Thermostat Does not apply to proportional or Line voltage thermostat controls The diagram below represents a factory installed IEC 24V thermostat Connection Function Description 10V Not use...

Страница 21: ...sor RAS Room air sensor 2 CN2 Changeover Return Air Sensor l Power connector for 24V or Common powered sensors m 24V powered sensors l Applicable for IEC supplied air sensor for Wi Fi E055 71520330 Pr...

Страница 22: ...ontact factory for applications l CLG or HTG LED indication when either 1st stage cooling or heating activated 7 CN7 Class II Transformer l 40VA 75VA option l 24V LED activated when powered 8 CN8 Inco...

Страница 23: ...low Adjusting the potentiometers requires the use of a Multi meter capable of measuring 0 5 vdc 1 Only trained and qualified individuals should attempt to adjust or service components on any electrica...

Страница 24: ...flow for 0 10 VDC If a factory provided thermostat or DDC controller is utilized then the unit is already correctly configured Eco 2 Variable Airflow for 0 10 VDC No control board is required and no f...

Страница 25: ...C is applied to HTG that control signal will passively be present at Pin 8 of the CN6 connector HTG LED shows GREEN Signal for 1st stage cooling valve present G Fan Low Speed 24VAC LOW 24VAC signal ap...

Страница 26: ...es INSTALLATION OPERATION MAINTENANCE MANUAL 26 SECTION THREE Controls Operation Cont d Example Wiring Diagram Electric Heat Only NOTE Wiring diagram also available through QR code found on the unit s...

Страница 27: ...INSTALLATION OPERATION MAINTENANCE MANUAL 27 SECTION THREE Controls Operation Cont d Example Wiring Diagram 2 Pipe Hydronic Heat Only NOTE Wiring diagram also available through QR code found on the un...

Страница 28: ...he 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 no...

Страница 29: ...uous operation With proper unit application and operation the high limit thermal cutout will not operate This device only operates when a problem exists and ANY condition that causes high limit cutout...

Страница 30: ...e recorded in the log for each unit Refer to the product catalog for the recommended filter size for each product type and size If the replacement filters are not purchased from the factory the filter...

Страница 31: ...ification 1 Complete unit model number 2 Unit serial number 3 Complete part description including any numbers For warranty parts inquiries in addition to the information previously listed a descriptio...

Страница 32: ...illed water line size to unit Proper hot water line size to unit All services to unit in code compliance All shipping screws and braces removed Unit protected from dirt and foreign matter Heating Conn...

Страница 33: ...the event of a breach of the Limited Express Warranty IEC will only be obligated at IEC s option to repair the failed part or unit or to furnish a new or rebuilt part or unit in exchange for the part...

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Страница 36: ...Series INSTALLATION OPERATION MAINTENANCE MANUAL Contact your local IEC Sales Representative for further details and pricing applicable to this product Visit our website iec okc com to find your local...

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