EV450RT
Due to continuing product development, specifications are subject to change without notice.
© 2014 RenewAire LLC
138060_009 EV450RTMan_Feb14.indd Revised 02/2014 www.renewaire.com
Page 2
Placement of the EV450RT
The EV450RT is designed for installation on a roof or other outside
location.
Select a location that is central to the inside duct runs, and close
to any other air handler to which the unit will be connected.
The EV450RT weighs approximately 170 lbs. It is the
installer’s responsibility to make sure that the screws
or bolts used for securing the units are properly
selected for the loads and substrates involved. Secure
the EV450RT so that it cannot fall or tip in the event
of accident, structural failure or earthquake.
RenewAire strongly recommends that you secure rooftop
units properly to the building structure. Strong winds,
tornados, and hurricanes can and do displace or remove
rooftop equipment from rails or curbs. When this happens,
the equipment, adjacent roof structure, and even vehicles
parked near the building can be damaged, and rain
typically enters the building. The equipment is put out of
service and the collateral damage can be very expensive.
The unit’s fresh air inlet should be at least 10’ away
from any exhaust, such as dryer vents, chimneys,
furnace and water heater exhausts, or other sources
of contamination or carbon monoxide. Do not locate
the fresh air inlet where vehicles may be serviced or
left idling. Never locate the unit inside a structure.
Danger of damage or severe injury if high winds move
this unit. Secure unit to structure. Observe local code
requirements at a minimum.
Provide Adequate Service Access for Maintenance
The EV450RT will require regular filter and core inspections.
Install the EV450RT where you can remove the doors for
cleaning the core and replacing the filters, and where you
can get at the wiring for installation and service.
Ducting
Basic Requirements
•
Always connect an RA and an FA duct to each Rooftop unit.
•
With Rooftop units, the RA and FA ducts cannot be
interchanged.
•
With RTV units, both ducts are inside the building. In other
units, such as the RTR/RTF and RTEC/RTH, that utilize the
optional roof adapter, at least one of the ducts is outside and
must be weatherized.
•
Any weatherized duct must be thermally insulated to prevent
condensation on the inside or outside of the duct. The duct
lining must be vapor-sealed, and the duct exterior must be
rain tight.
Tape both inner and outer vapor barriers of insulated duct
to collars on duct adapters. This is critical to prevent
migration of moisture into insulation. Build-up of moisture
can result in failure of the duct system and/or frost in
the insulation. Make sure any tears in the inner and outer
vapor barriers are sealed.
Duct Layout Options
The duct system for the ERV can be either:
•
Wholly separate from the building’s ductwork (stand-alone);
•
Wholly dependent on the building’s ducts; or
•
A hybrid of the two.
Stand-alone systems don’t rely on the operation of the building’s
heating and air conditioning system to distribute the fresh air.
Because ventilation delivery is the system’s only requirement, it
can be designed for maximum ventilation effectiveness.
Systems that rely on the existing air distribution system are less
expensive to install. In addition, the fresh air is always passed
through the heating or cooling equipment for further tempering
to room conditions.
Connecting Ducts to Unit
The basic unit has a Room Air (RA) inlet and Fresh Air (FA) outlet
on the underside of the unit. The nominal duct size for connection
to the underside of the unit is 10” x 10”.
See Accessories on page 6 for available Curb or Adapters, which are
usually used to complete the installation. It is important to connect
the ducts to the correct Curb and/or Adapter compartment.
EV450RT Airflow Performance
Airflow
CFM
ESP in.
H20
Watts
1P
Watts
3P
Temp
EFF%
Total EFF%
Winter/Summer
240
1.00
425
243
80
75/66
338
0.85
474
313
77
71/61
380
0.75
496
345
75
69/59
450
0.50
534
412
73
66/56
500
0.25
563
461
71
64/54
550
0.00
593
516
70
62/52
600
-0.25
623
572
68
60/50
Rigging Information
There are pairs of rigging holes at each lower corner of the
unit. Use slings or shackles at all four corners. Spreader bars are
recommended in order to avoid damage to the unit.
14 1/8
74 7/8
19 1/4
TOP VIEW
FRONT VIEW
LEFT VIEW
34 1/4
CENTER OF GRAVITY
40 lbs.
CORNER WEIGHT
48 lbs.
CORNER WEIGHT
44 lbs.
CORNER WEIGHT
52 lbs.
CORNER WEIGHT
20 1/2
24
16 1/4
14 1/2
CG
CG
LIFTING POINT
ON FOUR
CORNERS
18
22 3/4
48 7/8
