RenewAire LE10XIN Installation, Operation & Maintenance Manual Download Page 41

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LE10XIN ERV

1.800.627.4499

INSTALLATION, OPERATION AND MAINTENANCE MANUAL

RENEWAIRE.COM

MAINTENANCE

Use only BX-type

cogged drive belts.

11.8 SHEAVE ADJUSTMENT

Note that Low,

Medium and High

Blower RPM sheave

settings overlap,

allowing some adjustability

into lower or higher blower

speed zones.

LE10XIN

FA Airflow (CFM)

1520

4490

3010

5970

2260

5320

3750

6700

7440

Differential Pressure Measured Across Core

RA Airflow (CFM)

2050

5160

3610

6720

2830

5940

4390

7500

8270

0.2

0.6

0.4

0.8

0.3

0.7

0.5

0.9

1.0

All fan motors that are not controlled by a VFD are equipped with an adjustable sheave. These adjustable

sheaves must be re-set in the field to attain optimum performance of the ERV. This adjustment is to

be done after all ductwork is connected.

Adjustable sheaves are held in position on the drive motor shaft by a set screw that is normally

hidden until the belt(s) is removed. One flange is fixed-position, the others are adjustable-position.

The adjustable flanges of the sheave have a set screw located in an exposed position on the collar of

the flange.

To adjust the flanges:

• Remove the drive belt(s)

• Loosen the set screws on both adjustable flanges

• IN HALF-TURN INCREMENTS, turn the adjustable flanges in or out the same number of turns

• Tighten the set screws on the adjustable flanges, making certain that the set screws are landing

on the machined “flat” on the sheave.

Two-Belt Adjustable Sheave (typ)

Loosen Set Screw on Each

Adjustable Flange

Fixed Position Flange

3 HP

Motor

5 HP

3 HP

5 HP

7.5 HP

10 HP

3 HP

5 HP

7.5 HP

10 HP

7.5 HP

673

796

925

918

1041

925

1041

1163

817

939

1091

1062

1184

1091

1184

1306

633

755

878

1000

878

1000

1122

776

898

1044

1021

1143

1044

1143

1266

714

837

972

959

1082

972

1082

1204

1VP44

Motor

Sheave

2VP50

1VP50

2VP50

2VP56

2VP62

1VP50

2VP62

2VP68

LOW

Blower

Speed

LOW

MED

LOW

MED

HIGH

MED

HIGH

MED

755

878

1020

1000

1122

1020

1122

1245

694

817

949

939

1062

949

1062

1184

837

959

1115

1082

1204

1115

1204

1326

653

776

902

898

1021

902

1021

1143

796

918

1067

1041

1163

1067

1163

1286

735

858

996

980

1102

996

1102

1225

BC78

Blower

Sheave

D4900

BC90

D4780

D4900

BC78

D4900

Blower RPM Available by Variable Motor Sheave Adjustment

Table of Sheave Adjustments

Adjustable Flanges

Summary of Contents for LE10XIN

Page 1: ...INSTALLATION OPERATION MAINTENANCE MANUAL ENERGY RECOVERY VENTILATOR RENEWAIRE COM LE10XIN Model LE10XINV Shown also available as separate modules for field assembly...

Page 2: ...MOVING PARTS Disconnect all local and remote power supplies verify with a voltmeter that electric power is off and all fan blades have stopped rotating before working on the unit Do not operate this u...

Page 3: ...oped by the user to incorporate monthly and seasonal maintenance and include start up maintenance tasks as described in this manual If this unit is installed in an area where it may draw air from a ne...

Page 4: ...CONNECTIONS 24 7 0 CONTROL CONTRACTOR INFORMATION 24 7 1 24 VAC CLASS II POWER SUPPLY 24 7 2 MOTOR PROTECTION 25 7 2 1 Units Equipped with Motor Starters 25 7 2 2 Units With Variable Frequency Drives...

Page 5: ...LE10XINH Corner Weights 17 LE10XINV Corner Weights 17 Double Flange Duct Connection 20 E Box Main Disconnect Switch 21 E Box with Knockouts on Bottom 21 E Box Low Voltage Terminal Strip 21 24 VAC Pow...

Page 6: ...Standard F Fused Unit Control Enhancements Digit 21 T Transformer with Isolation Relay Standard 1 Enhanced Controls 2 Premium Controls 3 Enhanced Controls with BACNET License 4 Premium Controls with B...

Page 7: ...60 Single 14 7 14 33 1 40 9 38 8 48 40 2 45 3 0 208 230 460 575 60 60 60 Three Three Three 9 38 8 48 4 24 3 3 21 1 9 5 7 4 25 15 15 9 38 8 48 4 24 3 3 23 2 10 5 8 2 25 15 15 5 0 208 230 460 575 60 60...

Page 8: ...6 E Box Minimum Service Area 79 7 8 Minimum Blower Service Area Typ 111 Minimum Service Area Door Swing Door Swing Door Swing Door Swing RA FA OA EA TOP VIEW RIGHT VIEW FA OA RA EA Model LE10XINH Draw...

Page 9: ...6 670 1 9 740 2 1 810 2 5 880 2 8 940 3 1 1000 3 5 1060 3 9 1120 5500 3 HP LOW SPEED 1 6 640 1 9 710 2 2 770 2 5 840 2 8 900 3 1 960 3 5 1020 3 8 1080 4 2 1130 6000 2 0 690 2 2 750 2 5 810 2 8 870 3...

Page 10: ...m Service Area 79 7 8 Minimum Blower Service Area 111 Minimum Service Area 36 E Box Minimum Service Area Door Swing Door Swing Door Swing Door Swing RA FA EA OA TOP VIEW LEFT VIEW RIGHT VIEW RA FA OA...

Page 11: ...t are to be assembled in the field The customer may optionally order the modules to be assembled into one unit in the factory See Digit 23 of the Config uration Code RA Room Air into unit OA Outside A...

Page 12: ...ternate Duct Connections OA EA RA FA RA Room Air into unit OA Outside Air into unit FA Fresh Air to inside EA Exhaust Air to outside LE INH RA FA OA EA Duct Connections as Labeled NOTE Airstreams alwa...

Page 13: ...or spring vibration isolators depending on the option selected at time of order See Digit 10 of the Configuration Code Dampers are specified by the customer at time of order Order options are None Da...

Page 14: ...tivate the unit at user selected times When optional VFDs are ordered and there is no microprocessor controller the optional CO2 sensor or the optional IAQ sensor may be wired directly to the VFD prod...

Page 15: ...rectly to the ERV low voltage terminal strip When wired to the ERV low voltage terminal strip each device functions as an ON OFF switch for the ERV but they will not modulate the ERV All of the option...

Page 16: ...that are equipped with a VFD See the description in Section 2 7 Controls It uses 0 84 VA 2 8 4 Motion Occupancy Control 2 8 5 Smoke Detector A motion occupancy sensor is available as an optional cont...

Page 17: ...WITHOUT NOTICE RenewAire LLC Do not scale drawing LE10X INH_CORNER_WEIGHTS_MAY18 dwg LE10X INH Corner Weights Sheet 1 of 4 73 5 Lifting Lug LR RR LF RF 194 5 Lifting Lug BASIC UNIT WEIGHTS lbs Motors...

Page 18: ...Corner Weights in this manual 4 1 1 Unit Dimensions and Weight 4 1 2 Shipping Dimensions and Weight Upon delivery of the ERV inspect it carefully for shipping damage and completeness Verify the pres e...

Page 19: ...tion specified by others There are a number of situations that may demand relocation The outside air intake must be at least 10 away from exhausts such as dryer vents chimneys furnace and water heater...

Page 20: ...duct The ducts connecting to the outlets should be straight for a sufficient distance with gradual transitions to the final duct size These guidelines are consistent with SMACNA recommended duct layo...

Page 21: ...o be sure the voltage matches available utility power The line side of the disconnect switch contains live high voltage The only way to ensure that there is NO voltage inside the unit is to install an...

Page 22: ...ER BETWEEN TERMINALS 2 3 FACTORY SETTINGS Overload Relay Trip Settings Motor Nameplate FLA Overload Relay Mode Settings Manual position KEY FA Fresh Outside Air Blower EA Exhaust Air Blower FACTORY WI...

Page 23: ...ED JUMPER BETWEEN TERMINALS 2 3 FACTORY SETTINGS Overload Relay Trip Settings Motor Nameplate FLA Overload Relay Mode Settings Manual position KEY FA Fresh Outside Air Blower EA Exhaust Air Blower FAC...

Page 24: ...in the unit s E Box The unit s power supply system includes isolation relays with contact ratings as low as 50 mA 1 2 VA It is also possible to operate the isolation relays with 24 VAC power from an e...

Page 25: ...BMS such as BACnet unless the unit is equipped with microprocessor controls The unit can be controlled by powered or non powered contacts operated by any kind of control system Units that are equippe...

Page 26: ...OTE Some units are equipped with only one VFD which controls a single motor The second motor without a VFD is then protected by an overload relay as described before External control wiring is to be t...

Page 27: ...ion relay for the RA EA blower Supply only 24 VAC not VDC from a Class II power source Use the schematic below if external control is to be applied using 24 VAC from the ERV power supply External cont...

Page 28: ...Powered Relay Contacts Control with 2 ON Signals External Power Basic Sequence of Operation SOO Operating sequences are different depending on whether the unit is Controlled for simultaneous blower o...

Page 29: ...r through the blower s VFD If that blower is controlled by a motor starter it starts immediately Variable Frequency Drives VFDs When one or both of the blowers are factory provided with VFDs the respo...

Page 30: ...the foam gasketing positioned toward the filter One filter retainer is used for each set of five filters in LE10X units positioned as shown in the installation instructions Proper installation of foa...

Page 31: ...mpers should be tested at start up to verify that the dampers will open fully 9 2 1 Motor Starter Units Units without dampers both motors should begin running immediately Units with dampers dampers sh...

Page 32: ...operation Tighten all electrical connections paying special attention to VFD wiring if present Readjust the tension on motor drive belts Check the air filters as part of the normal monthly maintenanc...

Page 33: ...owest tension at which the belts will not slip under peak load operation For initial tensioning set the belt deflection at 1 64 inch for each inch of belt span measured half way between sheave centers...

Page 34: ...he load on the bearing Grease is basically a carrier for specific oils that are needed for each application Greases are made with different thickeners and these thickeners are often incompatible with...

Page 35: ...nd stop when the first sign of grease seepage from the bearing s seals is observed Leave a small amount of grease on the zerk as a protective coating In all cases Industry Best Practices should be obs...

Page 36: ...pic cores for cleaning remove the air filters To clean enthalpic cores all exposed surfaces must be vacuumed with an attachment having long soft bristles The greatest buildup of dirt and dust will nor...

Page 37: ...IN ERV 37 1 800 627 4499 INSTALLATION OPERATION AND MAINTENANCE MANUAL RENEWAIRE COM MAINTENANCE 10 8 SERVICE PARTS www renewaire com 800 627 4499 support renewaire com LE10XINH and LE10XINV Service P...

Page 38: ...lace significant weight on the plenum dividers They are not intended to be load bearing The fan and fan motor are part of an assembly that is mounted on a sled which is then installed in the ERV on vi...

Page 39: ...raw ten filters at once See image below When installing the filter spacers the foam strip is to be placed against the filter Note that when new filters are installed the filter spacers may tend to fal...

Page 40: ...e The differential static pressures DSP can be measured using the installed pressure test ports shown above Airstream pressure readings are to be taken across the cores by testing at diagonally locate...

Page 41: ...n the set screws on both adjustable flanges IN HALF TURN INCREMENTS turn the adjustable flanges in or out the same number of turns Tighten the set screws on the adjustable flanges making certain that...

Page 42: ...EWAIRE COM INSTALLATION OPERATION AND MAINTENANCE MANUAL 1 800 627 4499 42 MAINTENANCE 11 9 MAINTENANCE RECORDS FILTERS REPLACED DATE CORES CLEANED DATE AIR FILTER REPLACEMENT RECORD ENTHALPIC CORES C...

Page 43: ...REQUIREMENTS REAR BEARING LUBE REQUIREMENTS MOTOR TYPE REQUIRED LUBRICANT from motor manufacturer s website FRONT BEARING LUBE REQUIREMENTS REAR BEARING LUBE REQUIREMENTS LUBRICATION PERFORMED DATE L...

Page 44: ...rt workmanship and Quick Response Manufacturing QRM As the pioneer of static plate core technology in North America RenewAire is the largest ERV producer in the USA We re committed to sustainable manu...

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