Carrier 62E - Manual (Page 35)

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
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.
Wheel
Drive
Motor
Insulation
Seal
Plate
Pulley
Dimension A
Fig. 37 — Pulley Location
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.
A62-284ef
62E UNIT SIZE ERV WHEEL
WHEEL MODEL
NUMBER
DIMENSION A
mm in.
B,7
A ERC-1904 3.2 1/8
C ERC-1906 6.4 1/4
C,2
C ERC-2509 6.4 1/4
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
E,4
B ERC-3615 6.4 1/4
D ERC-3622 6.4 1/4
F ERC-3623 6.4 1/4
G ERC-3628 6.4 1/4
H,5
B ERC-5230 9.5 3/8
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