Carrier 62E specifications A62-284ef, Pulley Location

Page 35

6.Reinstall the bearing onto the wheel shaft, being careful to engage the 2 locating pins into the holes in the bearing support beam. Secure the bearing with 2 self-locking nuts.

7.Install the belts around the wheel and pulley according to the instructions provided with the belt.

8.Reinstall diameter seals or hub seal and tighten retaining screws. Rotate wheel in clockwise direction to determine that wheel rotates freely with slight drag on seals.

9.Reinstall bearing locking collar. Rotate collar by hand in the direction the wheel rotates (see label provided on each cassette for wheel rotation). Lock in position by tapping drift pin hole with hammer and drift. Secure in position by tightening setscrew.

10.Reinstall bearing access cover.

11.Apply power to wheel and ensure that the wheel rotates freely without interference.

ALTERNATE BELT REPLACEMENT METHODS — Alter- nate belt replacement methods may be used in some applica- tions depending upon accessibility of the cassette. Consult instructions provided with the belt for further information.

Removing the Service Door — To open the cabinet, turn the eight ¼-turn latches counter clockwise. With a hand on each handle of the door, carefully pull the door straight out.

Replacing a Blower (All ERV Cabinets Except 62EB and 62E7 Units)

EXHAUST SIDE — Turn off power to the unit. Remove all screws from the top panel on the exhaust side of the ERV. Be sure to remove the screws on the center seam. Pry the top panel up from its gasket seat, being careful not to bend the lid. Re- move the cover from the blower motor and note the location of

62E UNIT SIZE

ERV WHEEL

WHEEL MODEL

DIMENSION A

NUMBER

mm

in.

 

 

B,7

A

ERC-1904

3.2

1/8

C

ERC-1906

6.4

1/4

 

 

C

ERC-2509

6.4

1/4

C,2

D

ERC-2510C

3.2

1/8

 

G

ERC-2513C

3.2

1/8

D,3

D

ERC-3014C

3.2

1/8

G

ERC-3019C

3.2

1/8

 

 

B

ERC-3615

6.4

1/4

E,4

D

ERC-3622

6.4

1/4

F

ERC-3623

6.4

1/4

 

 

G

ERC-3628

6.4

1/4

 

B

ERC-5230

9.5

3/8

H,5

D

ERC-5248

9.5

3/8

F

ERC-5245

9.5

3/8

 

 

G

ERC-5262

9.5

3/8

K,6

D

ERC-6475

11.1

7/16

G

ERC-6488

11.1

7/16

 

L

D

ERC-6876

11.1

7/16

G

ERC-68100

11.1

7/16

 

M

D

ERC-7490

11.1

7/16

G

ERC-74122

11.1

7/16

 

N

D

ERC-81110C

11.1

7/16

G

ERC-81146C

11.1

7/16

 

P

D

ERC-86125C

11.1

7/16

G

ERC-86170C

11.1

7/16

 

R

D

ERC-92135C

11.1

7/16

G

ERC-92180C

11.1

7/16

 

S

D

ERC-99160C

11.1

7/16

G

ERC-99215C

11.1

7/16

 

T

D

ERC-104195C

11.1

7/16

G

ERC-104250C

11.1

7/16

 

U

D

ERC-110220C

11.1

7/16

G

ERC-110290C

11.1

7/16

 

all the wires. Disconnect the wiring from the terminals. Re- move all the P-clips, wire ties, and hoses that will keep the blower assembly from lifting out. Remove all the bolts that hold the blower assembly in the ERV unit. Carefully lift the blower assembly from its mounting plate.

NOTE: When removing 500 mm and 630 mm blowers it is helpful to get assistance because of the blower's size and weight.

Follow these instructions in reverse order to install the new blower.

SUPPLY SIDE — Turn off the power to the unit. Remove the intake air hood (if equipped). Remove all of the screws from the top panel on the supply side of the ERV. Be sure to remove the screws on the center seam. Pry the top panel up from its gasket seat, being careful not to bend the lid. Remove the ser- vice doors on both sides and remove the filters or filter racks on the supply side. Remove the cover from the blower motor and note the location of all the wires. Disconnect the wiring from the terminals.

NOTE: Push the wheel out from underneath the blower that is being disconnected for more room to work.

Remove all of the P-clips, wire ties, and hoses that will keep the blower assembly from lifting out. Remove all of the bolts that hold the blower assembly in the ERV unit. Carefully lift the blower assembly from its mounting plate.

NOTE: When removing 500 mm and 630 mm blowers it is helpful to get assistance because of the blower's size and weight.

Follow these instructions in reverse order to install the new blower.

Insulation

Seal

Plate

Dimension A

Wheel

Drive

Motor

Pulley

A62-284ef

NOTE: The ERV wheel model number contains the wheel series number, and is located on a label near the drive pulley. For example, ERC-5245 is a 52 series wheel.

Fig. 37 — Pulley Location

35

Image 35
Contents General ContentsSafety Considerations Physical Data SI Unit 62E Physical Data English Nominal Capacity cfm FAN Option Code InstallationSupply/Exhaust Fan Options Physical Data SI Supply/Exhaust Fan Options Physical Data EnglishRTU ERVType A62-33062E Unit A62-331 62EL-62EU Unit Cabinet DimensionsA62-246ef A62-247efA62-376.eps A62-377 Dimension Unit TypeA62-443 A62-37862E Unit Type 62E2-62E7 Unit Cabinet DimensionsInstall Standard Roof Curb A62-442 62E2-62E7 Unit Roof Curb DimensionsA62-379 62EB-62EU Unit Horizontal Discharge Box DimensionsA62-380 Make Electrical ConnectionsUnit FAN Motor Option Chassis FLA Supply and Exhaust Fans Electrical DataHeater Unit and Heater 62E Chassis FLA Electric Heat Electrical Data62.83 Typical Wiring Schematic A62-383.eps Energy Recovery WheelSTART-UP Airflow vs. Pressure Drop Across ERV Wheel Airflow VS. Pressure Drop Across ERV Wheel Unit EpsFig Outside Air Cfm ScreenA62-388.epsFig Modulating Cfm Eps Exhaust Air Offset ScreenFalse True CL2P Wiring Specifications Recommended Vendors and Part NumbersRmcorp AWGUPC Open Controller NEC MS/TP Wiring RecommendationsSpecification Recommmendation Baud Selection Table SW3 Protocol Switch Settings For MS/TPUPC Communication Protocol Settings DIP Switches Bacnet Point Name Read Object ID Write Object Name Network Points ListService A62-278ef Installing Wheel SegmentsA62-279ef A62-282ef Belt ReplacementA62-280ef A62-281efPulley Location A62-284efA62-285ef MaintenanceReplacing a Blower 62EB and 62E7 Units A62-286ef Diameter Seal AdjustmentSymptom Possible Causes Action to Check Possible Remedy TroubleshootingERV Troubleshooting Page Coupled to RTU or stand-alone Specify RTU Application

62E specifications

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