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ENVIRO-TEC

12

FORM ET115.24-NOM11 (118)

SERVICE AND CLEARANCE REQUIREMENTS: WIDTH RESTRICTED APPLICATION

3"

[76]

3"

[76]

3" [76] MIN

REQUIRED CLEARANCE

BESIDE UNIT

(PANEL REMOVAL

REQUIRED FOR

ELECTRICAL ACCESS)

CLEARANCE BETWEEN

STRUCTURE AND UNIT

ABIDE BY APPLICABLE

CODES AND STANDARDS

REGUARDING ACCESS

FOR ELECTRICAL OR

PLUMBING COMPONENTS

CORNER PANELS

SHOWN LIFTED AND

ROTATED 5°

LIFT AND ROTATE CORNER PANEL

OFF OF PIVOT POINT

1" [25] MIN

REQUIRED CLEARANCE

ABOVE UNIT

DROP CORNER PANELS

STRAIGHT DOWN

UNIT

INSTALLED

HALF

OPENED

FULLY

OPENED

HORIZONTAL, LOW PROFILE EXPOSED UNITS

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Содержание HL SERIES

Страница 1: ...INSTALLATION OPERATION MAINTENANCE HORIZONTAL LOW PROFILE FAN COILS Series D Supersedes ET115 24 NOM11 417 Form ET115 24 NOM11 118 ...

Страница 2: ...an Data 15 Water System Balancing 16 Controls Operation 16 Section Three Normal Operation Periodic Maintenance General 17 Motor Blower Assembly 17 Fan Deck 17 Coil 18 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 3...

Страница 3: ...urce 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 HOT PARTS HAZARD Electric Resistance heating elements must be disco...

Страница 4: ...ement 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 mounte...

Страница 5: ...rier 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 notified immediately so that the proper action may be instituted Should any question arise concerning war...

Страница 6: ...er 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 insur...

Страница 7: ...y 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 configurations Heating coils are available in reheat or preheat position Heating and cooling coils are available with right left or opposite side connections Verify that the proper types of service are actually provided to the unit On u...

Страница 8: ...on 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 field installed va...

Страница 9: ... the mounting holes to field 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 ...

Страница 10: ... components This unit is listed to UL CSAS standards All modifications to line voltage wiring must be performed in accordance with the NEC and inspected by ETL to maintain product listing Unauthorized modification 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 per...

Страница 11: ...Shim frame to support as required 7 Telescoping skirt assembly must be field adjusted to assure close fit to louvered bottom panel 8 Portions of the inlet louver not directly below unit inlet may require covering in the field on applications where infiltration of ceiling plenum air into space is undesired TYPICAL INSTALLATION METHODS INLET COLLAR INSTALLATION SUSPENDED GRID TILE CEILING SYSTEM CEI...

Страница 12: ...ENVIRO TEC 10 FORM ET115 24 NOM11 118 SERVICE AND CLEARANCE REQUIREMENTS HORIZONTAL LOW PROFILE EXPOSED UNITS ...

Страница 13: ...D CLEARANCE BELOW UNIT 0 CLEARANCE BETWEEN UNIT AND STRUCTURE CORNER PANELS ROTATED 90 CAN BE LIFTED AND REMOVED 11 279 MIN REQUIRED CLEARANCE BESIDE UNIT CORNER PANELS SHOWN ROTATED 90 UNIT INSTALLED HALF OPENED FULLY OPENED SERVICE AND CLEARANCE REQUIREMENTS HEIGHT RESTRICTED APPLICATION HORIZONTAL LOW PROFILE EXPOSED UNITS ...

Страница 14: ...TRICAL ACCESS CLEARANCE BETWEEN STRUCTURE AND UNIT ABIDE BY APPLICABLE CODES AND STANDARDS REGUARDING ACCESS FOR ELECTRICAL OR PLUMBING COMPONENTS CORNER PANELS SHOWN LIFTED AND ROTATED 5 LIFT AND ROTATE CORNER PANEL OFF OF PIVOT POINT 1 25 MIN REQUIRED CLEARANCE ABOVE UNIT DROP CORNER PANELS STRAIGHT DOWN UNIT INSTALLED HALF OPENED FULLY OPENED HORIZONTAL LOW PROFILE EXPOSED UNITS ...

Страница 15: ...ts 5 Provide sufficient clearance to access electrical components and comply with all applicable codes and ordinances HORIZONTAL LOW PROFILE PLENUM AND FREE RETURN 8 1 2 216 OPTIONAL AUXILIARY DRIP PAN SUPPLY AIR OPENING WIDTH 10 1 2 267 AIR FILTER CLEARANCE 8 204 1 25 CONTROL ENCLOSURE SEE NOTE 5 FRONT VIEW OPTIONAL SIDE ACCESS 22 559 TOP VIEW NOTES 1 All chilled water piping that projects beyond...

Страница 16: ...he 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 manual or optional automatic air vent fitting installed on the coil In the case of the manual air vent fitting the screw should be tu...

Страница 17: ...61 0 6 N A N A Medium 45 Low 40 04 1 1 20 2 High 75 0 8 0 4 0 5 Medium 65 Low 58 06 1 1 10 2 High 121 1 1 0 6 0 5 Medium 84 Low 66 08 1 1 6 2 High 224 2 1 1 1 0 9 Medium 140 Low 66 09 1 1 6 2 High 230 2 1 1 1 0 9 Medium 139 Low 67 10 2 1 10 4 High 226 2 2 1 2 1 Medium 154 Low 128 12 2 1 10 4 High 248 2 2 1 2 1 Medium 171 Low 133 NOTES 1 Motor electrical data is nameplate data 2 Watts are based on ...

Страница 18: ...onsult the approved unit submittals order acknowledgement and other manuals for detailed information regarding each individual unit and its controls Since controls and features may vary from one unit to another care should be taken to identify the controls to be used on each unit and their proper control sequence Information provided by component manufacturers regarding installation operation and ...

Страница 19: ...ng environment and conditions that may dictate a maintenance schedule for that unit that is different from other equipment on the job A formal schedule of regular maintenance and an individual unit log should be established and maintained This will help to achieve the maximum performance and service life of each unit on the job Information regarding safety precautions contained in the preface at t...

Страница 20: ...e also causes excessive amperage draw and may result in tripping of the circuit breaker or blowing of the fuses on the incoming power supply ELECTRICAL WIRING CONTROLS The electrical operation of each unit is determined by the components and wiring of the unit and may vary from unit to unit Consult the wiring diagram for the actual type and number of controls provided on each unit The integrity of...

Страница 21: ...d should be recorded in the log for each unit Refer to the chart below for 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 that furnished from or recommended by the factory Consult the factory for applications using filter types other than the factory standard or optional produ...

Страница 22: ...1 31 x 10 5 x 1 787 x 267 x 25 2 05 0 19 31 x 9 25 x 1 787 x 235 x 25 08 2 11 0 2 1 87 0 17 1 38 0 13 2 77 0 26 2 19 x 10 5 x 1 483 x 267 x 25 2 51 0 23 2 19 x 9 25 x 1 483 x 235 x 25 09 2 35 0 22 2 08 0 19 1 53 0 14 3 08 0 29 1 20 1 22 25 x 10 5 x 1 508 565 x 267 x 25 2 79 0 26 1 20 1 22 25 x 9 25 x 1 508 565 x 235 x 25 10 2 89 0 27 2 7 0 25 1 99 0 18 3 79 0 35 2 26 x 10 5 x1 660 x 267 x 25 3 43 ...

Страница 23: ...ch pump to bracket and mount it to unit with two screws See Figure 1 f Complete all assembly prior to mounting pump cover g Connect tubing Once all of the connections are made reconnect the main power of the unit CURRENT SWITCH DEVICE SAFETY WARNING The Current Switch is intended to provide an input to equipment under normal operating conditions Where failure or malfunction of the Current Switch c...

Страница 24: ...Proof 0 10 0 50 5 0 Functional Operating positing Diaphragm vertical barbed fittings horizontal Operating temp 40 F to 140 F 40 C to 60 C General measurements Pressure Switch Figure 11 Installation Assembly The differential air pressure switch is mounted inside the unit with double sided tape behind the filter retention tab See figure 12a Instructions for commissioning or replacing the differentia...

Страница 25: ...e reconnect the main power Figure 13 LOW TEMPERATURE CUTOUT CONTROL General information This low temperature device will de energize the system if the operating conditions begin to approach freezing as water freezes it expands and will rupture the coil barrel tubes The function of this low temperature device is to cycle a SPST switch in response to changes of temperature Refer to fig 4 to locate t...

Страница 26: ...ount tape and wire tie See Figure 14 f WiretheNCrelayusingthe 250quickconnectors g Once all of the connections are made reconnect the main power of the unit Figure 14 TABLE 5 UNIT WEIGHT DATA LBS KG COMPONENT UNIT SIZE 02 03 04 06 08 09 10 12 HLF BASE UNIT 22 10 25 12 33 15 43 20 53 24 60 27 74 34 83 38 HLP BASE UNIT 24 11 28 13 36 16 47 21 58 26 65 30 81 37 91 41 HLE BASE UNIT 56 25 63 29 75 34 9...

Страница 27: ...and press firmly into place ensuring switch wires are positioned up ensure float moves freely 3 Secure bracket into side of pan using self tapping sheet metal screw through upper hole in bracket 4 Ensure float switch assembly is firmly secured to bracket Ensure top of float is below rim of pan Switch will trip when water level reaches a point even with top of float when float is in down position S...

Страница 28: ...anties and regulatory listings When ordering parts the following information must be supplied to ensure proper part identification 1 Complete unit model number 2 Unit hand connection right or left hand while facing the direction of airflow at the inlet 3 Complete part description including any numbers On warranty replacements in addition to the information previously listed the project CO that app...

Страница 29: ...ping as required q Install Condensate Pan under Piping as Required DUCTWORK CONNECTIONS q Install Ductwork Fittings Grilles As Required q Proper supply return grille type size used q Control Outside Air For Freeze Protection q Insulate all ductwork as required ELECTRICAL CONNECTIONS q Refer to unit wiring diagram q Connect incoming power service or services q All field wiring in code compliance UN...

Страница 30: ...ent to the motor windings A signal to call for electric heat from an external controller will verify that a fan speed is selected before providing the command signal to the external electric heat control to ensure that electric heat can only be energized when the fan motor is operational The assembly includes factory provided harnesses to allow for faster installation and improved troubleshooting ...

Страница 31: ...s carrying hazardous voltage can cause electric shock and may result in severe personal injury or death WIRING Install the wiring so it does not cause a hazard and is protected against electrical and mechanical damage Risk of electric shock Ground the FRBii according to local national and regional regulations Failure to ground the FRBii may result in electric shock and severe personal injury or de...

Страница 32: ...ENVIRO TEC 30 FORM ET115 24 NOM11 118 REFERENCE WIRE DIAGRAM ...

Страница 33: ... 24V 9 24V 10 G Fan Enable 11 W1 Heat 1 12 COM 13 DAMP Damper 14 COM 15 HEAT Heat output 16 COM 17 24V 18 S1 Common J2 J3 Incoming Power TABLE F 3 INCOMING POWER J2 J3 SIGNAL IDENTIFICATION Pin Signal 1 NEUT 2 120 3 208 4 240 5 277 J4 J5 Motor Output TABLE F 4 MOTOR OUTPUT J4 J5 SIGNAL IDENTIFICATION Pin Signal 1 LOW 2 MED 3 HIGH 4 NEUT W1 MTR PWR The MTR PWR quick connect provides voltage to the ...

Страница 34: ...th the fan relays to ensure that a fan speed is commanded when electric heat is requested DAMP Output The DAMP output connects to a motorized damper actuator used to control airflow from an external source This output provides 24VAC to energize the damper actuator This output is interlocked with the fan relays to ensure that a fan speed is commanded before energizing the damper actuator TABLE F 6 ...

Страница 35: ... a float switch is installed JP3 Fan Enable Jumper This jumper is installed between R and G 24V The jumper is removed when remote control of the fan motor is desired In most instances JP3 will be installed unless a thermostat or controller is remotely controlling of the equipment JP2 and JP3 locations can be seen in Figure F 3 TEST POINTS TABLE F 8 TEST POINT DESCRIPTION Test Point Name Descriptio...

Страница 36: ...ium speed control for onboard relay 6 H High High speed control input for onboard relay 7 G Fan Enable Used to allow external start stop control from an external source 8 C Common through JP2 Device common including onboard speed relays all terminals C and COM on board are internally connected 9 C 10 R 24VAC Transformer hot connection 24VAC 11 S2 Auxiliary Input Heat 2 Used for different functions...

Страница 37: ...diagram Remove power from the unit Unplug motor harness J4 and or J5 connector Unplug motor harness from motor connection or PWM board depending on type of motor Verify continuity of wires then reconnect to J4 or J5 connector and to motor or PWM board To check low voltage wire harnesses Remove power from the unit Unplug low voltage harness J1 connector and disconnect connections at other end of J1...

Страница 38: ...es main fusing verify that the fuses are not blown Verify wire harness connections are secure See Checking Wire Harnesses section JP2 removed without float switch installed Verify that either a float switch or JP2 are installed If neither install one of them Float switch tripped Verify float switch if present is made JP3 removed without external start stop control installed Verify that either an e...

Страница 39: ...fy operation of float switch Adjust switch position if needed 24V units drain pan float switch fault Verify operation of float switch if installed Disconnect switch and use volt ohm meter to verify continuity of switch and of wiring Replace switch if faulty Low temperature cutout has tripped If low temperature cutout present Examine coil for signs of freezing Verify adjustment of freeze stat Disco...

Страница 40: ...s in the discharge ductwork and or at the plenum opening Verify filter is not dirty and does not obstruct airflow Poor airflow performance psc motor Lack of required external static pressure External static pressure not as designed Adjust external static pressure to design pressure 24V units three speed switch in wrong position Verify three speed switch if present is set to desired speed Poor volt...

Страница 41: ...isconnect motor harnesses and verify continuity Replace motor harness Excessive fan noise Motor mounting bolts loose Tighten motor mounting bolts Motor shaft bent Replace motor Motor bearing end of life Disconnect power from unit Verify motor rotates freely by hand with blower disconnected Motor overloaded Verify static pressure per system design Use amp meter to verify motor amps Disconnect power...

Страница 42: ...switch and of wiring Replace switch if faulty Low temperature cutout has tripped If low temperature cutout is present Examine coil for signs of freezing Verify adjustment of freeze stat Disconnect switch and use volt ohm meter to verify continuity Replace switch if faulty Blower jammed Remvoe power from unit Clear blockage Verify blower is not damaged and rotates freely while motor is not energize...

Страница 43: ...e discharge ductwork and or at the plenum opening Verify filter is not dirty and does not obstruct airflow Poor Airflow Performance ECM motor Lack of required external static pressure External static pressure not as designed Adjust external static pressure to design pressure 24V units Three speed switch in wrong position Verify three speed switch if present is set to desired speed Poor voltage qua...

Страница 44: ...fer to PWM board status LEDs Verify all connections Cycle power to the board Refer to PWM board IOM Motor fault or end of life Replace motor Faulty motor harness Reseat connector and verify operation Disconnect motor harnesses and verify continuity Replace motor harness EC motor speed cannot be adjusted PWM board error or faulted Refer to PWM board status LEDs Verify all connections Cycle power to...

Страница 45: ...nected If not replace motor Motor end of life Use amp meter to verify motor amps Replace motor Dirty filters Verify filters Replace as needed Obstructed airflow Verify blower is unobstructed Verify no duct obstruction Verify dampers are full open Improper duct connections Verify ductwork is installed per SMACNA and ASHRAE guidelines Static pressure too low Verify static pressure per system design ...

Страница 46: ... valves are open Insufficient flow Verify liquid flow per system design Obstructed coil Verify coil is unobstructed Verify all manual valves are open and have liquid flow through system DX coils Improper refrigerant charge Charge to proper cooling DX coils Insufficient cooling liquid to coil Verify coolant flow in coil Verify proper flow per system design No call for cooling Verify cooling signal ...

Страница 47: ... for heater to cool down This may take up to an hour Secondary limit switch tripped The secondary limit may be manually reset If unit is hot wait for the heater to cool down This may take up to an hour Reset switch es Verify if heater will start Improper wiring connections Verify wiring to schematic Openordamagedheaterelements With power removed disconnect heater wire harnesses These are the harne...

Страница 48: ...be manually reset If unit is hot wat for the heater to cool down This may take up to an hour Reset switch es If limits trip again verify heater is not overheating Loss of fan speed command Heater will not operate if fan is not enabled Intermittent control device Verify operation of any control device such as drain pan float switch freeze stat thermostat etc When in doubt jumper out and verify fan ...

Страница 49: ...cond stage Verify demand voltage at stage 2 contactor Incorrect voltage applied Verify proper voltage to unit per unit label Electric heat contactor fault Verify heating demand voltage is at each electric heat contactor control coil terminals If power is present but contactor is not actuated replace contactor To verify contactor with power removed unwire contactor and verify continuity across cont...

Страница 50: ...ENVIRO TEC is a mark and or registered mark Unauthorized use is strictly prohibited Catalog ET115 24 NOM11 118 Supersedes ET115 24 NOM11 417 2018 Johnson Controls www enviro tec com ...

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