PAGE 3
19. Seal, if required, along face (top and sides) of UERV
unit where it meets rooftop unit to insure no air
leakage. Final assembly should resemble
Figure 11.
20. 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 cir cuit ampac ity and maximum
overcurrent protection size. Electrical data is listed on
unit rating plate and motor nameplates.
21. Connect line voltage power supply to UERV unit from
disconnect switch. Connect line voltage to fuse block
in control box through knockout on the front of UERV.
See Figure 13.
22. 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.
23. Replace access panel onto the UERV unit and secure.
24. Restore power to unit.
25. Start system up to verify operation.
26 Balancing is done by removing the plastic plugs in
door panels (4 total).
27. With a manometer measure pressure drop [ inches of
water column] across the top half of UERV (top holes
in door panel). Unit CFM is determined by referring to
Table #1
. If CFM values are not per design, adjust
internal dampers inside the rooftop unit. This is
accomplished by removing door panel at the return air
opening, loosing screw in center of damper, then slide
damper rod up or down in the return airstream and
re-tighten screw. Replace door panel and repeat
measurement method.
28. Place plastic plugs back into door panels.
29. Cleanup once UERV is operating properly. Caulk any
open joints, holes or seams to make the unit
completely air and water tight.
30. Fill out installation checklist and start-up sheet in back
of this instruction.
31. Leave this instruction manual with owner or in an
envelope to be kept near the 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 balancing damper and connection of electrical
power is required to make the system operational. The
concept consists of a unique rotary energy recovery wheel
that rotates in and out of fresh air streams within a heavy
duty, permanently installed blower cabinet that provides
ready access to all internal components. The media is
polymeric material that is coated and permanently bonded
with a dry desiccant for total enthalpy recovery. The wheel
is belt driven by PSC motor and drive belt.
Figure 5
Figure 6
Figure 4
ADJUSTMENT
ROD
REINSTALL CENTER POST
BALANCING DAMPER
MAXA-MI$ER
Ô
UNITARY ENERGY RECOVERY VENTILATOR
MODEL VR028A15M/H & VR028A25H (STATIONARY)
INSTALLATION
INSTRUCTIONS
035-19268-002-A-0709 / R28A-18YDW
Содержание VR028A15M/H
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