Filter
Top Products
6
Table 2A — Supply/Exhaust Fan Options Physical Data — SI
Table 2B — Supply/Exhaust Fan Options Physical Data — English
DIRECT COUPLED APPLICATIONS (Horizontal) — For
horizontal applications (above the roof) using 62EB-EU units,
the horizontal supply/return base and transition accessories
may be used.
For horizontal applications using 62E2-E7 units, a standard
roof curb and transition accessories may be used.
INSTALLATION
Step 1 — Inspect the Unit —
Inspect the unit; file a
claim with the shipping company if the unit is damaged. Check
the packing list to ensure that the correct items have been
received and notify your Carrier representative of any
discrepancy.
Step 2 — Install Combination Roof Curb
(62EB-EU Units) —
For 62EB-EU units, the combina-
tion roof curb is a single curb that supports both the ERV and
RTU and has internal supply and exhaust air transitions. See
Fig. 1.
NOTE: For horizontal applications with 62E2-E7 units, a stan-
dard roof curb and horizontal transition can be used.
LOCATE THE COMBINATION CURB — Prior to locat-
ing the combination curb, consider the structural support re-
quired for the rooftop system and the duct drop location in rela-
tion to the joists. Allow sufficient space for service, clearance,
and locations of vents or other sources of air. Refer to Fig. 2
and 3 for ERV clearance requirements. Refer to the rooftop in-
stallation instructions for more information regarding location
considerations.
PREPARE ROOF CURB LOCATION — Cut a hole in the
roof for duct openings. Your local Carrier sales representative
can provide dimensional drawing for the combination curb.
See this drawing for duct opening dimensions. Frame the open-
ing to provide adequate structural support.
SET THE COMBINATION CURB — Set the combination
curb over the roof opening. Level the curb by placing shims
under the bottom flange of the curb. Secure the curb in place by
welding or fastening the curb to the roof.
INSTALL DUCTWORK — Ductwork will be installed in the
curb for combination curb applications. The supply duct will
hang from the top of the curb. The return duct will attach to a
stub duct provided with the combination roof curb.
NOTE: Ductwork must be installed before the RTU is set in
place.
INSTALL GASKETS — The combination curbs come with a
gasketing package to provide a seal between the RTU and ERV
units and the top perimeter of the combination curb. Install the
gasket around the top perimeter of the curb and around the sup-
ply and return opening. Gasket strips must fit tightly together,
leaving no gaps for leakage.
INSTALL ROOFING MATERIALS — Insulate and add a
cant strip to the combination curb. Follow suggested and ac-
ceptable roofing procedures for applying roofing materials.
The roofing material should extend up to the wood nailer and
be secured under the counter flashing. Follow all local, nation-
al, and industry roofing standards. Refer to Fig. 4 for roofing
recommendations.
Step 3 — Install Drop-In Damper Box (62EB-
EU Units) —
The drop-in damper box accessories are de-
signed to fit into the return air openings of the standard factory
curb of Carrier RTUs. The damper box provides connections
for return air from the conditioned space, exhaust air to the
ERV, and ventilation air from the ERV. The ERV would be in-
stalled on a stand-alone roof curb and field-supplied ductwork
would be run between the damper box and ERV curb. See
Fig. 5. The maximum length of the field-supplied duct is 100
equivalent feet.
LOCATE THE ERV ROOF CURB — Prior to locating the
ERV roof curb consider the structural support required for the
rooftop system, the duct drop location in relation to the joists,
and the 100 equivalent foot duct length limitation between the
ERV and RTU. Allow sufficient space for service, clearance,
and locations of vents or other sources of air. Refer to Fig. 2
and 3 for ERV clearance requirements. Refer to the rooftop in-
stallation instructions for more information regarding location
and installation considerations for the RTU curb.
FAN OPTION CODE A B C E F G H
Wheels
Qty...Width (mm)
1…128 x 110 2…128 x 110 1…400 1…500 2…500 3…500 4…500
Nominal Motor kW
(per each fan)
0.45 0.45 0.88 2.70 2.70 2.70 2.70
FAN OPTION
CODE
JKLMNPRS
Wheels
Qty...Width (mm)
5…500 6…500 1…630 2…630 3…630 7…500 8…500 1…250
Nominal Motor kW
(per each fan)
2.70 2.70 2.90 2.90 2.90 2.70 2.70 2.70
FAN OPTION CODE A B C E F G H
Wheels
Qty...Width (in.)
1…5 x 4 1/8 2…5 x 4 1/8 1…15 3/4 1…19 3/4 2…19 3/4 3…19 3/4 4…19 3/4
Nominal Motor Hp
(per each fan)
0.61 0.61 1.18 3.62 3.62 3.62 3.62
FAN OPTION
CODE
JKLMNPRR
Wheels
Qty...Width (in.)
5…19 3/4 6…19 3/4 1…24 3/4 2…24 3/4 3…24 3/4 7…19 3/4 8…19 3/4 1…9 7/8
Nominal Motor Hp
(per each fan)
3.62 3.62 3.89 3.89 3.89 3.62 3.62 3.62