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RIGGING AND STACKING
The ERV section sizes 03-14 are shipped stacked (fully assem-
bled) and size 17 with 4, 6, or 8 in. baserails are shipped
stacked (fully assembled). These units can be stacked and un-
stacked, as required, during installation by following the same
procedure as for larger units described below.
The ERV section sizes 17 with 10 in. baserails and sizes 21-61
are shipped unstacked due to shipping height limitations. The
lower sections are all assembled on baserails and shipped sepa-
rately. The upper sections are also assembled on baserails and
shipped separately. Rigging and setting the lower sections is
the same as for a standard 39MN indoor or 39MW outdoor
base unit. Refer to the Rigging Information label on the unit.
For sizes 36-61, the ERV wheel bypass sections are shipped
stacked. upper section must be removed from lower section before
installation.
CAUTION
The upper sections MUST be rigged and lifted one at a time
or injury or unit damage may occur.
Rigging and lifting upper sections:
1.
Use all lifting brackets provided on the baserail section.
2.
Lift and carefully set the section on top of the lower sec-
tions using guide pins to align and avoid damage to gasket.
For sizes 21-30, upper sections should be stacked onto the
lower sections starting with the section upstream and
downstream of the wheel section, and then moving out-
ward to each end of the unit.
Repeat this process for the remaining ERV sections.
For sizes 36-61:
1.
Connect lower ERV return air module sections to the main
unit. Make standard connections with hardware at base rails,
Intelliclamp connectors, and top frame brackets. See Fig. 164.
2.
Remove screws securing the lower panel to the frame rail on
the outlet wall supply air module. Save screws and panel for
reinstallation. See. Fig. 165.
3.
Verify gasket is present and secure at base rail tab to roof cap
connection.
Fig. 164 — Connect Lower ERV
Return Air Module Section
ERV RETURN
AIR MODULE
MAIN UNIT
ROOFCAP
93M6X70500X000002 GASKET
TO BE ADDED BETWEEN THE
ROOFCAP AND BASERAIL ON
BOTH SIDES
Fig. 165 — Remove Lower Panel
4.
Stack upper section for the supply air module on the return air
module making sure to align the stacked vertical frames.
Connect stacked base rail to frame as shown in Fig. 163.
5.
Reinstall panel removed in Step 2 using the retained screws
over the roof cap flange.
6.
Use caulk/sealant to seal gap at both sides starting at the bot-
tom of the panel and sealing 4 in. up.
7.
Install the lower ERV wheel bypass section. Make standard
connections with hardware at baserail and Intelliclamp con-
nectors (if used).
8.
Stack the ERV wheel section and secure baserail to lower sec-
tion as shown in Fig. 163. Take care to vertically align the
faces of the stacked vertical frames.
9.
Secure the ERV wheel section 3 in. baserail to the return air
module frame Intelliclamp connector as shown in Fig. 166.
10. Secure the ERV wheel section frame Intelliclamp connector
to the supply air module 6 in. base rail as shown in Fig. 167.
200
PANEL
USE SEALANT PF20-78
(TEROSTAT) TO SEAL GAP
BETWEEN FRAME AND BOTTOM
4" OF PANEL (BOTH SIDES)
PANEL
ROOFCAP
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