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ENVIRO-TEC

23

FORM ET115.24-NOM1 (

519

)

TROUBLESHOOTING GUIDE FOR ECM 3-SPEED

CONSTANT TORQUE MOTOR

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Содержание HP Series

Страница 1: ...ion proper installation regular periodic maintenance and everyday operation of the equipment be followed in detail HP SERIES HPP Plenum Return Shown 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...

Страница 2: ...f power may be present Disconnect all power sources to avoid electrocution or shock injuries MOVING PARTS HAZARDS Mo tor 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 HOT PARTS HAZARD Electric Re sistance heating elements must be dis conne...

Страница 3: ...2 WATER SySTEM bALANCING 12 CONTROLS OPERATION 12 PHySICAL DATA 12 MOTOR bLOWER ASSEMbLy 12 FAN ASSEMbLy 13 COIL 13 UNIT WEIGHT DATA 14 ELECTRIC RESISTANCE HEATER ASSEMbLy 14 ELECTRICAL WIRING CONTROLS 14 ELECTRIC HEAT SELECTION CHART AMPS 15 FACE AREA FREE AREA AND FILTER SIZES 16 VALVES PIPING 16 DRAIN 16 FILTERS 16 FILTER REPLACEMENT 16 REPLACEMENT PARTS 17 HP SERIES COIL CONNECTION SIZES 18 EC...

Страница 4: ...ll 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 i...

Страница 5: ...s 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 clea...

Страница 6: ...ry 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 RETURN AIR LOCATION This unit is equipped with a field reversible rear or bottom ducted air return for plenum style units To change the return air location remove the reversible plenum box panel and the filter rack Rotate ...

Страница 7: ...such as joint compounds soldering flux and metal shavings may be present in the unit and the piping system Special con sideration must be given to system cleanliness when connecting to solar domestic or potable water systems SubmittalsandProductCatalogsdetailingunitoperation controls and connections should be thoroughly reviewed BEFORE beginning the connection of the various cooling and or heating...

Страница 8: ...tallations should be made in compliance with all governing codes and ordinances Compliance with all codes is the responsibility of the installing contractor The unit nameplate lists the unit electrical characteristics such as the required supply voltage fan and heater amperage and required circuit ampacities The unit wiring diagram shows all unit and field wiring Since each project is different an...

Страница 9: ...oil 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 filter 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 Fan coils are not intended for temporary heat cool ...

Страница 10: ...ical data is nameplate data Actual data will vary with application 2 Motors nameplated for 208 230 1 60 Data is at 230 volts 3 ECM motors operated on 208 1 60 power result in reduced airflow PSC ECM FLA 3 Phase Neutral Current FLA 3 Phase Neutral Current FLA 3 Phase Neutral Current FLA 3 Phase Neutral Current FLA 3 Phase Neutral Current FLA 3 Phase Neutral Current High 1 1 6 2 6 1 1 0 9 Medium 1 1...

Страница 11: ...All Ductwork and Grilles In Place Start Fans Etc Check All Ductwork and Units For Air Leaks Record All Final Settings For Future Use Check All Dampers For Proper Operation Unit Received Complete as Ordered Unit Structural Support Complete and Correct Proper Steam Condensate Trap on Return Line All Services to Unit in Code Compliance Proper Hot Water Line to Unit Proper Steam Line Sizes to Unit Pro...

Страница 12: ...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 verified 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 ...

Страница 13: ... motor wire leads loosen the set screw on the motor shaft and remove the 3 cap screws that attached the motor to the blower housing To reassemble insert the motor into the blower wheel motor slots to be facing up center the blower wheel within the blower housing and tighten the set screw Reinstall the 3 cap screws and tighten to 40 in lbs Place the entire fan assembly back up over the weld studs i...

Страница 14: ...ed at least twice during the first 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 rela...

Страница 15: ...over 48 AMPs are subdivided and fused per NEC Electric Heat Selection Chart AMPs M BH 6 8 8 5 10 2 11 9 13 7 17 1 20 5 23 9 27 3 30 7 34 1 41 0 47 8 KW 2 0 2 5 3 0 3 5 4 0 5 0 6 0 7 0 8 0 9 0 10 0 12 0 14 0 VOLTS 115 17 4 21 8 26 1 30 5 34 8 208 9 6 12 0 14 4 16 8 19 2 230 8 7 10 9 13 1 15 2 17 4 277 7 2 9 0 10 8 12 6 14 4 115 17 4 21 8 26 1 30 5 34 8 43 5 208 9 6 12 0 14 4 16 8 19 2 24 1 28 9 230...

Страница 16: ...e will flow easily Periodic checks of the drain should be made during the cooling season to maintain a free flowing 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 If cleaners are used they should be compatible with the materials of con...

Страница 17: ...ection right or left hand while facing the direction of airflow at the inlet 3 Complete part description including any num bers 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 fac...

Страница 18: ... unit options For specific unit dimensions and options information please refer to applicable submittal drawings MODEL HPF HIGH PERFORMANCE FREE RETURN FAN COIL UNIT MODEL HPP HIGH PERFORMANCE PLENUM RETURN FAN COIL UNIT MODEL HPP M HIGH PERFORMANCE MIXING BOX FAN COIL UNIT MODEL HPE HIGH PERFORMANCE ENCLOSED CABINET FAN COIL UNIT ...

Страница 19: ...ge CFM curve or erratic motor operation and eventual failure may result Remote Balancing 1 Relocate the jumper into the REM position 2 Determine the DC voltage for required airflow from the Fan Calibration Curve supplied on the side of the equipment Use the top 2 to 10 Analog Input Volts DC scale on the chart 3 Remotely adjust the external voltage source to the desired volts DC for required airflo...

Страница 20: ...s shipped prior to April 2011 do not set voltage lower than 5 1 VDC or higher than 9 9 VDC 2 REMOTE BALANCING Do not set the remote CFM adjustment voltage lower than 2 1 VDC or higher than 10 0 VDC For units shipped prior to April 2011 do not set voltage lower than 2 1 VDC or higher than 9 9 VDC 3 WARNING Input voltages which are less than or greater than the limits defined above may cause erratic...

Страница 21: ...fully seated in motor receptacles ECM cables open or intermittent Replace cable s See section on checking cables below Mechanical failure Check motor and confirm it rotates freely Electrical failure Replace motor Fan Relay Contacts Oxidized Sulfidized Replace fan relay Motor Surges Fan CFM adjustment voltage outside range of Fan Calibration Curve Adjust voltage to value within range of Fan Calibra...

Страница 22: ... 15 14 3 4 5 7 6 1 2 White wire to P2 COM of ETPWM board Blue wire to P7 LCOM of ETPWM board of ETPWM board Red wire to P6 LED of Fan Relay or Curtis Block Green wire to P2 Fan On Off Black wire to P3 PWM of ETPWM board FIG 3 MOTOR TERMINAL WIRING W ECM MOTORS LD13842 LD13843 LD13844 ...

Страница 23: ...ENVIRO TEC 23 FORM ET115 24 NOM1 519 TROUBLESHOOTING GUIDE FOR ECM 3 SPEED CONSTANT TORQUE MOTOR ...

Страница 24: ...ENVIRO TEC 24 FORM ET115 24 NOM1 519 TROUBLE SHOOTING GUIDE FOR ECM 3 SPEED CONSTANT TORQUE MOTOR ...

Страница 25: ...ENVIRO TEC 25 FORM ET115 24 NOM1 519 TROUBLE SHOOTING GUIDE FOR ECM 3 SPEED CONSTANT TORQUE MOTOR ...

Страница 26: ... 208V P1 P4 230V P1 P5 277V Ensure MTR PWR is connected to correct volt ages 115V P7 or 208V P3 or 230V P4 or 277V P5 See Figure 4 below TROUBLE SHOOTING GUIDE FOR FAN COIL RELAY BOARD Connect jumper wire between 2 points for motor power or 208V 230V 277V Motor power can only be connected to one voltage P7 P6 115V P8 P6 208V P9 P6 230V P10 P6 277V FIG 4 FAN COIL RELAY BOARD WITH MOTOR POWER CONNEC...

Страница 27: ...s ent then measure across terminals S1 and R if 24 volts 19 29 VAC is not present then return board to local sales representative LD13952 FIG 5 FAN COIL RELAY BOARD CURRENT Verify plug jumper JP3 Figure 5 is installed or wire Figure 6 is installed between W2 and R Either JP3 or wire jumper must always be installed unless thermostat drawing indicates otherwise JP3 should be removed for single speed...

Страница 28: ...d thermostat cooling output Convenience terminal not connected to anything else on board W1 Tie point for hot water valve actuator or 1st stage EH control input and thermostat heating output Convenience terminal tied to P22 Heat quick connect for factory ter mination to EH relay if applicable Y2 tie point for Close input of modulating chilled wa ter valve actuator or 2nd stage chilled water valve ...

Страница 29: ...ENVIRO TEC 29 FORM ET115 24 NOM1 519 EXAMPLE WIRING DIAGRAMS Typical 24VAC Control Drawing refer to unit control enclosure for actual order specific drawings ...

Страница 30: ...ENVIRO TEC 30 FORM ET115 24 NOM1 519 EXAMPLE WIRING DIAGRAMS ...

Страница 31: ...ENVIRO TEC 31 FORM ET115 24 NOM1 519 EXAMPLE WIRING DIAGRAMS Example with ECM Motor ...

Страница 32: ... OR REMOTE 3 SPEED SWITCH To install remote speed switch to motor perform the following Step 1 Cut Quick Ends Step 2 Strip Wire End Step 3 Wire Nut Remote Thermostat or Remote 3 Speed Switch on Motor ENVIRO TEC 32 FORM ET115 24 NOM1 519 ...

Страница 33: ...OPERATION MAINTENANCE MANUALS Analog Thermostats Data and Instructions Digital Thermostat D Series Installation Guide Digital Thermostat D Series Operating Manual Programmable Thermostat P Series Installation Guide Programmable Thermostat P Series Operating Manual N Series and F Series T6xx Installation Instructions Return Air Sensor for operation with D Series or P Series Installation Instruction...

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