American Aldes Heat Recovery Ventilator LT-20 User Manual
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4537 NORTHGATE COURT
SARASOTA, FL 34234-2124, USA
Tel: 941 • 351- 3441
Fax: 941 • 351- 3442
www.aldes-us.com
e-mail: [email protected]
RECYCLED PAPER
746HRV-LT-7--00-pm6
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Y MATHEWS GRAPHIC DESIGN
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S P E C I F I C A T I O N S
THERMALLY CONDUCTIVE, PATENTED ALUMINUM CORE: The
cross-flow heat recovery core transfers heat between the two air
streams. It is easily removed for cleaning or service.
MOTORS AND BLOWERS: Each air stream has one centrifugal blower
driven by a common PSC motor. 120 VAC, 1.4 Amps.
FILTERS: Washable air filters in exhaust and supply air streams.
MOUNTING THE HRV: Four 10-24 5/8” threaded inserts at corners of
case designed to accept four PVC reinforced polyester straps that are sup-
plied with the unit.
DEFROST: Damper defrost system; defrosts automatically as the out-
door temperature falls.
CASE: Twenty gauge prepainted galvanized steel (G60) for superior
corrosion resistance. Insulated to prevent exterior condensation. Drain
connections 2 - 1/2” (12 mm) OD.
WEIGHT: 71 lbs. (32.5 kg) SHIPPING WEIGHT 73 lbs. (33.5 kg)
CONTROLS: Basic ON/OFF control is maintained with the 3 foot,
120VAC, 3-prong electrical cord providing power to the HRV.
HRV DEFAULTS TO LOW SPEED when plugged in. HIGH SPEED op-
tion is accessible by connecting remote, low voltage, 2-wire controls (up
to 10) or (up to four 28 884 -20 minute fan timers) to designated terminals
inside electrical box of HRV.
STANDARD SPEED SETTING can be increased by manipulating jump-
ers in electrical box. OFF (Standby) /LOW or OFF/HIGH speed opera-
tion also available by manipulating jumpers.
OFF, LOW and HIGH speeds are all remotely controllable when an op-
tional 28 883 Dehumidistat Ventilation Control (DVC) is connected to the
HRV’s electrical box.
APPROVALS: SAFETY: ETL Tested / Certified to UL 1812
CSA
PERFORMANCE: HVI Tested / Certified to CSA 439-88
P E R F O R M A N C E
HVI CERTIFIED
Net Supply airflow in cfm (L/s) against external static pressure
E .S .P .
LLLLLTTTTT-15
-15
-15
-15
-15
[cfm (L/s) ]
LLLLLTTTTT-20
-20
-20
-20
-20
[cfm (L/s) ]
0.1" (25 Pa)
177 (83)
214 (101)
0.2” (50 Pa)
164 (77)
206 (97)
0.3” (75 Pa)
156 (73)
193 (91)
0.4” (100 Pa)
143 (67)
184 (87)
0.5” (125 Pa)
123 (58)
170 (80)
Max. Sensible Effectiveness
78%
69%
Test Parameters 67 cfm (32 L/s) 127 cfm (60 L/s)
Sensible Effectiveness
76%
67%
Sensible Efficiency
@ 32° F ( 0° C )
66%
60%
Sensible Efficiency
@ -13° F ( -25° C )
60%
59%
VAC @ 60HZ
120
120
WATTS / High @ .3" w.c. 173
182
WATTS / High @ .3" w.c. 63
70
OPTIONS
28 884 20 Minute Fan Timer (3 wire)
28 998 Sixty Minute Remote Timer (2 wire)
28 883 Dehumidistat Ventilation Control, Remote
Dehumidistat w/ HRV system on/off switch
28 882 Dehumidistat Control, Remote Wall Mount,
Horizontal Mounting, Low Voltage white)
22 026 Weatherhoods, 6” (150 mm) c/w 1/4’ (6 mm) screen
All units conform to
CSA and UL
Standards
WARRANTY
Units carry a 15
year warranty on
the heat recovery
core and a 2 year
replacement parts
warranty.
CONDENSATE DRAINS