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Cabinet Heater G*Y/D*Y Series

INSTALLATION, OPERATION, & MAINTENANCE MANUAL

SECTION THREE — Controls Operation

Board Components and Specifications

Board Function and Diagnostics

LED Functions and Outcomes

(sequence of operations)

Wiring Diagrams

SECTION FOUR — Normal Operation

and Maintenance

General

Motor/Blower Assembly

Bipolar Ionizer Brush Cleaning

Coil

Electric Heater Assembly

Electrical Wiring and Controls

SECTION FIVE — Equipment Start-Up

Check List - IMPORTANT

Terms and Conditions

SECTION ONE — Installation

Preface

Unpacking and Inspection

Prepare Jobsite and Units

Handling and Installation

Unit Clearance and Service Access

Vertical Series Unit Installation

Cabinet Front Panel Installation

and Removal

Decorative Wall Panels

Installation (GHY)

Optional Trim Kit Installation

Horizontal Series Unit Installation

Hydronic Heating Connections

Electrical Connections

Ductwork Connections

Final Preparations

SECTION TWO — Start-Up

General Start Up

Hydronic Heating System

Air System Balancing

Water Treatment

Water System Balancing

Table of Contents

Содержание D Y Series

Страница 1: ...RATION 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 coils or electric heat only options Optional colors valve packages controls and unit configurations Nominal CFM range of 200 to 1 200 CFM DBY GXY ...

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 not be as described herein Please contact IEC for information regarding current design and product specifications Statements and other information contained herein are not express warranties and do not...

Страница 3: ...eplacement 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 Installation 6 Unit Clearance and Service Access 8 Vertical Series Unit Installation 9 Cabinet Front Panel Installation and Removal 9 Decorative Wall Panels Installation GHY 11 Optional Trim Kit Ins...

Страница 4: ...t 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 failure during testing Always protect adjacent flammable material when welding or soldering Use a suitable heat shield material to contain sparks or drops of solder Have a fire extinguisher readily avail...

Страница 5: ...quired 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...

Страница 6: ...et 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 airflow discharges from the front The control panel is always on the end opposite the piping See Figures 1 and 2 for recommended service and operating clearances Size GHY GXY GSY 02 23 1 2 597 41 1041 03 2...

Страница 7: ...2 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 DXY Unit Clearance Service Access Controls Side Piping Side 12 18 in 28 in 28 in see table 2 Controls Side Piping Side Figure 3 DBY Unit Clearance and Service Access ...

Страница 8: ...the 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 irregular surfaces or mullions Furring strips must be positioned behind mounting holes in unit Fasteners furring strips and other seals if required must be field supplied 4 Remove all wall and floor moldin...

Страница 9: ...lt 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 the wall panel to dry wall Reference Figures 8 and 10 for install diagram requirements Secure the Wall panel FRAME to the framing studs with field supplied mounting hardware Once the frame is secured t...

Страница 10: ...ries 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 Wall Panel Install Diagram ...

Страница 11: ...sing 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 field furnished mounting devices such as rubber in shear or spring type vibration isolators selected by the contractor or engineer may be substituted for the factory grommets and should be used where fa...

Страница 12: ...o 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 such as water and electrical At this time it should be verified that the proper types of services are actually provided to the unit On those units requiring hot water the proper line size and water temp...

Страница 13: ...in 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 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 shoul...

Страница 14: ...ng 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 responsibility for any damages and or injuries resulting from improper field installation and or wiring 1 After planning for and bringing incoming power to the unit locate the control box and cover plate i...

Страница 15: ...rom 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 restrictions All units must be installed in areas that are non combustible Some models are designed to be connected to ductwork with a MINIMUM amount of external static pressure These units may be damaged by ...

Страница 16: ...pected 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 and other construction debris from unit interior Be sure to check fan wheel and housing and clean if necessary 4 Rotate fan wheel by hand to be sure it is free and does not rub housing Check that wi...

Страница 17: ...n 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 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 ...

Страница 18: ...hould 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 different operating characteristics depending on the devices and controls used in the system The actual balancing technique may vary from one system to another After the proper system operation is e...

Страница 19: ...CN8 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 Changeover Return Air Sensor CN2 Pluggable T Stat Connector CN1 Remote Shutdown Input CN3 Overflow Switch CN4 Two Stage Cooling CN5 Actuator Aquastat CN6 Transformer CN7 Line Service Voltage CN8 PSC ...

Страница 20: ...led 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 used COM Ground control power G3 HI Fan High Speed G2 MED Fan Medium Speed G1 LOW Fan Low Speed W1 HTG Heat Y1 CLG Cool W2 HT2 Heat stage 2 Y2 CL2 Cool stage 2 R 24V 24V Controller Power COS Changeover ...

Страница 21: ...nsor 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 Programmable E055 71520317 Non programmable E055 71520316 24V IEC thermostats m Common powered sensors l Applicable for thermostats by others l Sensor switch m 10k thermistor m Bimetal switch 3 CN3 Rem...

Страница 22: ...Contact 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 Incoming Power 9 CN9 PSC Motor l 3 speed application l Either LOW MED HI activated when a speed is selected 10 CN10 EC Motor l 3 speed application l Solid State switching l Either LOW MED HI activated wh...

Страница 23: ...flow 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 electrical component Failure to follow safety rules could result in electrical shock or hazard 2 24 VAC power must be supplied to ECM board to make adjustments 3 Set the electrical multimeter to Volts Direct ...

Страница 24: ...rflow 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 field adjustments are possible Motor uses 0 10VDC signal directly See control box label Fan enable at 1 5VDC 12 Ground Tab Connection l For mulitmeter diagnostics ...

Страница 25: ...DC 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 applied to LOW of CN1 The low speed PSC motor power relay and the low speed ECM signal relays will be activated Line voltage will be present at Pin 2 of CN9 and the adjustable low speed ECM DC signal w...

Страница 26: ...ies 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 serialized name plate label ...

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 unit serialized name plate label ...

Страница 28: ...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 which can damage a blower wheel or motor The wheel and housing may be cleaned periodi...

Страница 29: ...nuous 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 MUST be corrected immediately High supply voltage also causes excessive amperage draw and may trip the circuit breaker or blow the fuses on the incoming power supply After proper air flow and supply...

Страница 30: ...be 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 filters used should be the same type and size as those furnished from or recommended by the factory Pleated media or extended surface filters should not be used since the high air pressure drops encountere...

Страница 31: ...tification 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 description of the issue with the parts is required Contact the factory for authorization to return any parts such as defective parts to be replaced in warranty All shipments returned to the factory must be ma...

Страница 32: ...hilled 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 Connections Protect valve package components from heat Mount valve packages Connect field piping to unit Pressure test all piping for leaks Install drain line and traps as required Insulate all piping as...

Страница 33: ...he 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 or unit which has failed If after written notice to IEC s factory in Oklahoma City Oklahoma of each defect malfunction or other failure and a reasonable number of attempts by IEC to correct the defect ...

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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 IEC Sales Rep IEC Part Number I100 90034485 IOM 010 Rev 2 07 2021 2021 International Environmental Corporation IEC ...

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