PAGE 2
3.
Install an internal balancing damper assembly.
4.
Adjust return dampers to minimum air flow
requirements.
5.
Attach wire harness using hardware provided in bag
assembly.
Refer field wiring diagram
. Route wiring
through return damper assembly.
6.
Locate wire harness plug in exhaust air stream so
connection can be made with ERV after unit is set
place.
7.
Insert and attach hat sections between bottom and
middle deck of balancing damper (qty 2) 19
3
16
" from
center on center line.
8.
Insert and attach hat sections between middle deck
and top of balancing damper (qty 2) 21
3
16
" from center
on center line.
9.
Then install side filler panels.
10. Position platform support rail with flange pointing away
from rooftop unit. Secure rail to rooftop unit base rail
using provided #14 and position behind balancing
damper bottom frame using existing screw holes to
align.
11. Using lifting lugs, raise ERV unit approximately three
(3) feet. Remove nut and bolt assembly to slide
telescoping part of leg half way out of guide and attach
flat foot with hardware provided in bag assembly.
Position standoff legs so that flat foot is on bottom of
stand and reinstall nut and bolt assembly.
DO NOT
fasten tightly, adjustment will need to be made when
unit is put into position.
See Figure 2.
12. Attach provided gasketing material to face of ERV unit
to prevent air leakage. Remove screws from rooftop
unit top panel, then raise and support approximately 2"
above corner post.
13. Lift and move ERV unit into position in front of
horizontal exhaust air opening.
14. Lower ERV into platform support rail catching the front
edge of the ERV bottom into the flange. With the ERV
in place, adjust the standoff legs to level and support
ERV against rooftop unit filler panels. Use screws to
securely fasten ERV to rooftop unit. . Tighten securely.
Rotate lifting lug to original position and tighten
machine bolts.
Figure 2
TELESCOPING LEG
FOOT PAD
15. Lower top flange of rooftop unit against top flange of
ERV and secure in place.
16. Seal, if required, along face (top and sides) of ERV unit
where it meets rooftop unit to insure no air leakage.
17. All electrical connections must conform to any local
codes and current National Electric Codes (NEC) and
Canadian Electric Codes (CEC). Refer closely to unit
wiring diagram in unit and/or in these instructions for
proper wiring connections. Refer to the unit nameplate
for minimum circuit ampacity and maximum
overcurrent protection size. Electrical data is listed on
unit rating plate and motor nameplates.
18. Remove ERV access panel to connect field wiring.
Connect wire harness plug and jack of ERV control
wiring together in exhaust air section.
19. Connect line voltage power supply to ERV unit from
disconnect switch.
20. Ground unit with a suitable ground connection either
through unit supply wiring or an earth ground.
Note:
Unit voltage entries must be sealed weather
tight after wiring is complete.
21. Replace access panel onto the ERV unit and secure.
22. Attach wiring diagram (supplied) to rooftop unit wiring
diagrams.
23. Restore power to unit.
24. Cleanup once unit is operating properly, caulk any
open joints, holes or seams to make the units
completely air and water tight.
25. Leave this instruction manual with owner or in an
envelope to be kept near unit.
VIII - OP ER A TION
How It Works
The unit contains an Energy Recovery Wheel (ERW) that
is a new concept in rotary air-to-air heat exchanger.
Designed as a packaged unit for ease of installation and
maintenance, only matching up to rooftop unit with an
internal economizer and connection of electrical power is
required to make the system operational. The concept
CAUTION
Danger of sharp metallic edges. Can cause injury.
Take care when servicing unit to avoid accidental
contact with sharp edges.
WARNING
Electric shock hazard. Can cause injury
or death. Before attempting to perform
any service or maintenance, turn the
e l e c t r i c a l p o w e r t o u n i t O F F a t
disconnect switch(es). Unit may have
multiple power supplies.
2.
Remove the rooftop unit horizontal return air access
panels. Also remove any hoods and/or power exhaust
equipment. Discard hoods, power exhaust equipment
horizontal supply and return air access panels.
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