User Guide
Table Of Contents
4
Specifications
455FD/DD
CORES
Modular (2 section) patented aluminum heat recovery cores arranged
for efficient counter-flow ventilation.
MOTORS
Two PSC, 3 speed single shafted, 120 VAC,1.92 Amps each (3.8 total
on high speed). HP- 1/6, 1625 RPM. MCA: 4.8 MOP: 15. Watts - total
on high speed - 437.
FILTERS
Washable air filters in exhaust and supply air streams.
BLOWERS
Slide easily in / out of unit. Centrifugal type rated at 236 L/s (500
CFM) free air delivery. Each air stream has one single shafted motor
driving a centrifugal blower.
CONNECTION DUCT SIZES
Four - 14" x 8" (356 mm x 200 mm).
MOUNTING
Unit to be set on support brackets hung by threaded rod type appa-
ratus (brackets and rods not provided).
CASE
Unit has front and back access doors and electrical panel can be
switched to either side giving the installer flexibility in duct direction.
20 gauge pre-painted galvanized steel (G60) for superior corrosion
resistance. Insulated with foil faced insulation where required to pre-
vent exterior condensation. Drain connections; two - 1/2" (12 mm)
O.D.
ELECTRONICS
Integrated microprocessor circuit board. Built-in interlock contacts.
DEFROST CONTROLS
MODEL 455FD - Interrupts supply air while exhaust air defrosts core.
MODEL 455DD - Supply bypass routes indoor air to defrost core.
WEIGHT 150 lbs. (70 kg) SHIPPING WEIGHT 210 lbs. (90 kg)
CONTROL OPTIONS
99-BC02 Lifebreath Ventilation Control
2 speed fan setting (Low/High)
Humidity control through adjustable Dehumidistat
Compatible with 99-DET02 Wireless Timers
3 wire connection; 20 gauge wire (minimum)
99-500 3 Speed Control
3 Speed Fan setting (Low/Medium/High)
4 wire connection; 20 gauge wire (minimum)
99-DH01 Lifebreath Dehumidistat
Humidity control through adjustable Dehumidistat
3 wire connection; 20 gauge wire (minimum)
TIMER OPTIONS
99-DET01 Lifebreath 20/40/60 Minute Timer
Initiates high speed Ventilation for 20, 40 or 60 minutes
3 wire connection; 20 gauge wire (minimum)
99-DET02 Lifebreath WIRELESS 20/40/60 Minute Timer
Initiates high speed Ventilation for 20, 40 or 60 minutes
Wirelessly connects to main control for ease of installation
40' approximate range
99-RX02 Lifebreath WIRELESS Repeater
Used to extend range of 99-DET02 Wireless Timers when
Timers are out of range
Plugs into 120V power outlet and wirelessly connects to
main control and 99-DET02
PERFORMANCE
AIRFLOWS (Each Air Stream)
TEMPERATURE EFFECTIVENESS
600 (283)
550 (260)
500 (236)
450 (212)
400 (189)
350 (165)
300 (142)
250 (118)
0
0.1
(25)
0.2
(50)
0.3
(75)
0.4
(100)
0.5
(125)
0.6
(150)
0.7
(175)
0.8
(200)
0.9
(225)
EXTERNAL STATIC PRESSURE IN. W.C. (PASCALS)
400 (189)
300 (143)
500 (236)
200 (94)
70%
60%
50%
AIRFLOW IN CFM (L/s)
AHRI 1060 Certified
Core: Contains two 68-222
AIRFLOW IN CFM (L/s)
EFFECTIVENESS
High Speed
Med Speed
Low Speed
WARRANTY
Units carry a 15 year warranty
on the HRV core and a 2 year
replacement parts warranty.
All units conform to CSA and UL
standards
NOTE: All specifications are sub-
ject to change without notice.
Date: ______________________________________
Tag: ____________________ Qty: ______________
Project: ____________________________________
Engineer: ___________________________________
Contractor: _________________________________
Supplier: ___________________________________
Quote #: ___________________________________
Submitted by: _______________________________
SUPPLY AIR
FROM OUTSIDE
DD MODEL ONLY
DEFROST AIR
DD MODEL ONLY
SUPPLY AIR
FROM OUTSIDE
FD MODEL ONLY
EXHAUST AIR
TO OUTSIDE
SUPPLY AIR
TO BUILDING
EXHAUST AIR
FROM BUILDING
NOTE: Service clearance
is 30 in. (760 mm) from
front access doors
FRONT VIEW
DISCHARGE SIDE
INLET SIDE
28 3/4”
(730 mm)
29”
(737 mm)
29”
(737 mm)
33 1/4”
(845 mm)
8”
(200 mm)
14”
(356 mm)
8”
(200 mm)
14”
(356 mm)
4 3/4”
(121 mm)
7 1/2”
(191 mm)
6 1/2”
(165 mm)
6 1/2”
(165 mm)
DIMENSIONS inches (mm)
NOTE: The 455FD/DD model may
easily be reversed in the eld. Refer to
page 25 for installaon instrucons.