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 3
Sound Attenuation
General Practices
Take these simple steps to attenuate noise from the unit.
Outside the building:
The exhaust hood is the primary source of noise outside the
building. When practical, orient the exhaust air hood to point
away from houses or public areas.
At the Curb:
Cut the holes in the roof deck to fit closely around the duct(s)
passing through the roof deck. Seal all gaps around the duct(s)
at the roof deck.
Ducts:
Make sure the ductwork at the unit outlets is stiff enough to
resist the flexure and resulting booming associated with system
start-up and shut-off, as well as the turbulent flow conditions at
the blower outlets.
In general, provide smooth transitions from the ERV’s outlets to the
duct. The ducts connecting to the outlets should be straight for a
sufficient distance, with gradual transitions to the final duct size.
These guidelines are consistent with SMACNA recommended duct
layout practices for efficient and quiet air movement. Follow
SMACNA guidelines.
Radiated Noise
The EV450RT is insulated with high-density fiberglass. This provides
significant attenuation of radiated sound from the unit itself.
The outlet ducts can be significant sources of radiated sound
as well. The FA duct should be insulated for sound control. This
insulation should start at the unit. At a minimum the first ten
feet of duct should be insulated. All parts of the FA and RA ducts
located in a mechanical space with noise-generating equipment
also should be insulated for sound control, both to minimize
sound radiation out of the FA duct, and also to control sound
radiation into both ducts.
Aerodynamic (Velocity) Noise
When sound attenuation is a design concern, the primary
consideration is velocity noise at the unit’s Fresh Air blower outlet.
The average velocity at the blower outlet is 2800 FPM when the
unit is operating at 450 CFM. The average velocity at the Exhaust
Hood outlet is 1370 FPM when the unit is operating at 450 CFM.
Danger of Electrical Shock when servicing an installed unit.
ALWAYS DISCONNECT POWER SOURCE BEFORE SERVICING!
More than one disconnect switch may be required.
Proper Wiring Size Selection and Wiring Installation
are the Responsibility of the Electrical Contractor.
Before bringing power to the unit check unit nameplate
to confirm it matches the voltage and phase of the
power you are supplying.
Remember that your field connections need to be
accessible for inspection.
Power Supply
•
Remove both access panels to the electrical box.
•
Two 7/8” holes or knock-outs are provided in the bottom of the
unit. These may be used to bring power into the unit through a
curb, where allowed.
•
It is also possible to bring wiring into the unit through the sides
of the unit. This is allowed only in the area below the electrical
boxes’ inner wall, and above the bottom panel. This area is
marked on the unit. (See below).
•
Use conduit, strain reliefs, etc. as required by code to
secure the field wiring.
All field-connected wire in the unit, including control
circuit wire, must have a minimum insulation rating of
300V for units supplied with 115, 208, or 230V power;
600V for units supplied with 460V power.
6
CORE: "J" = G5
11
WALL TYPE: "S" = SINGLE, "D" = DOUBLE
12
PHASE: "1" = SINGLE-PHASE, "3" = THREE-PHASE
19
21 OPTION 1: 24V TRANSFORMER
25 SAFETY LISTING (RESTRICTION 15)
MODEL
NUMBER
MUL
TIPLE-CHOICE OR
OPTIONAL
FEA
TURES
STANDARD
FEATURES
10 UNUSED IN EV450 MODELS
13
VOLTAGE: (SEE RESTRICTIONS 2,& 3)
7-8
INDOOR/OUTDOOR: "RT"
1-5 MODEL:"EV450"
20
16-18 UNUSED IN EV450 MODELS
15
EA HORSEPOWER
14 FA HORSEPOWER
"-" = STANDARD EV450 MOTORS
"E" = ECM DIRECT DRIVE MOTORS
"1" = 115V, "4" = 460V, "5" = 208-230V
24
"L" = LISTED "N" = NON-LISTED
OPTION 4: OTHERS
"T" = TR (TRANSFORMER WITH ISOLATION RELAY)
"-" = NONE,
"W" = WHITE PAINT, "C" = CUSTOM PAINT
"X" = CUSTOM UNIT
RESTRICTIONS 6 & 7
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
UNIT CONTROL
DISCONNECT
"N" = NON-FUSED (STANDARD)
"F" = FUSED
"A" = STANDARD UNIT CONTROL WIRING
"Tor G" = TERMINAL STRIP FOR ECM MOTORS-
(determined by RenewAire at time of purchase)
J
-
- -
T
-
-
22
UNUSED IN EV450 MODELS
-
E V 4 5 0 R T
23 OTHER OPTIONS (RESERVED)
"-" = NONE
RESTRICTIONS:
1: -
2: VOLTAGE CODE "1" AVAILABLE WITH PHASE CODE
"1" (SINGLE-PHASE) ONLY.
3: VOLTAGE CODE "4" AVAILABLE WITH PHASE CODE
"3" (THREE-PHASE) ONLY.
4. -
5: -
6: VOLTAGE CODES "1" AVAILABLE ONLY WITH FA/EA
HORSEPOWER CODES "EE".
7: MOTOR CODE "EE" (ECM MOTORS) AVAILABLE
ONLY WITH PHASE CODE "1" (SINGLE PHASE)
8:-
9: -
10:-
11:-
12: -
13: -
14: -
15: SOME UNITS WITH CUSTOM "X" CODE ARE NOT
SAFETY LISTED.
EV450RT Product Configuration Chart
Electrical Options are identified on the Unit Label located near electrical box on the outside of the unit. Find the complete Unit Model
Number in the lower left corner of the Unit Label. Use the key below to determine motor power and voltage installed in your EV450RT:
