RenewAire LE10XIN Installation, Operation & Maintenance Manual Download Page 11

LE10XIN ERV

11

 

1.800.627.4499 

INSTALLATION, OPERATION AND MAINTENANCE MANUAL 

RENEWAIRE.COM 

OVERVIEW

NOTE: This unit is 

an Energy Recovery 

Ventilator. It is 

commonly referred to 

throughout this manual as 

an “ERV”.

NOTE: There is also 

a rooftop version of 

this ERV, known as 

the LE10XRT. It has a 

separate manual.

1.0 OVERVIEW

1.1 DESCRIPTION

1.3 MODELS

1.3.1 LE10XINH

1.2 FACTORY ASSEMBLY OF MODULES

The LE10XIN ERV is a total enthalpy energy recovery ventilator. It recovers both sensible and latent 

energy from a building Exhaust Airstream and transfers that energy into a fresh Outdoor Air stream, 

which it then introduces into the building Supply Air. The result is a constant supply of fresh outdoor 

air in the Occupied Space with very little energy loss, enhancing Indoor Air Quality (IAQ). Each ERV has 

enthalpic cores through which both the EA and SA airstreams pass and each air stream has its own 

fan motor/blower. Each ERV has a high voltage control panel and a separate low voltage terminal strip 

for connection to user-specified control devices.

Fan speed can be adjusted either by means of adjustable sheaves on the fan motors, by means of 

an optional VFD or a combination of microprocessor controls and a VFD. Several control options are 

offered for the unit. 

See Section 2.7 Optional Control Accessories.

The LE10XIN is offered in two different models, the LE10XINH and the LE10XINV. The LE10XINH and 

the LE10XINV are both for indoor installations and differ from each other in the location of the air 

stream ducting. Each of the indoor models has an optional alternate duct connection. 

See below.

The LE10XINH features Outside Air (OA) and Room Air (RA) on one side of the unit and Exhaust Air (EA) 

and Fresh Air (FA) on the other side. The standard duct configuration and the optional alternate duct 

configurations are shown below.

The LE10XIN ERV is built as two modules that 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 Air into unit
FA = Fresh Air to inside

EA = Exhaust Air to outside

LE-INV

RA

FA

OA

EA

Duct Connections as 

Labeled

NOTE: 

Airstreams always cross in 

the energy-exchange core.

Alternate

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 always cross in 

the energy-exchange core.

 OA

EA

RA

FA

Alternate 

Duct Connections 

LE-IN Configurations_DEC15.dwg

RA = Room Air into unit
OA = Outside Air into unit
FA = Fresh Air to inside

EA = Exhaust Air to outside

LE-INV

RA

FA

OA

EA

Duct Connections as 

Labeled

NOTE: 

Airstreams always cross in 

the energy-exchange core.

Alternate

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 always cross in 

the energy-exchange core.

 OA

EA

RA

FA

Alternate 

Duct Connections 

LE-IN Configurations_DEC15.dwg

RA = Room Air into unit

OA = Outside Air into unit

FA = Fresh Air to inside

EA = Exhaust Air to outside

LE10XINH Standard Duct Configuration

LE10XINH Alternate Duct Configuration

Room Air (RA) enters lower right side of unit.

Exhaust Air (EA) exits upper left side of unit.

Outside Air (OA) enters upper right side of 

unit. Fresh Air (FA) exits lower left side of unit.

Room Air (RA) enters upper right side of unit.

Exhaust Air (EA) exits lower left side of unit.

Outside Air (OA) enters upper left side of unit.

Fresh Air (FA) exits lower right side of unit.

The LE10XINH is always supplied from the factory in the Standard Configuration, 

as shown above. If the optional Alternate Duct Configuration is desired, specify 

FA and EA dampers and motor horsepower for the “opposite” airstreams. Keep 

this reversal in mind when making control connections. Also note that the addition 

of certain options to the unit may not permit selection of the alternate duct connections.

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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