Model 850, Fd/dd, Dimensions 850 – Lifebreath 500ERV User Manual

Page 7: Specifications, Performance, Airflows (each air stream), Temperature effectiveness

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7

Model 850

FD/DD

SPECIFICATIONS

CORES

Modular (6 section) patented aluminum heat recovery cores arranged for high
efficiency crossflow ventilation.

MOTORS

Two PSC, 3 speed double shafted, 120 VAC, 3.95 Amps each (7.9 total on
high speed). HP - 1/4, 1625 RPM. Watts - total on High Speed - 848.

FILTERS

Washable air filters in exhaust and supply air streams.

BLOWERS

Centrifugal type rated at 950 cfm (448 L/s) free air delivery. Each air stream
has one double shafted motor driving two centrifugal blowers.

CONNECTION DUCT SIZES

Three - 20" x 8" (508 mm x 200 mm).
Stale air intake - 26" x 8" (660 mm x 200 mm).
Model 850DD - additional 20" X 8" defrost port

MOUNTING

Unit to be set on support brackets hung by threaded rod type apparatus.
(brackets and rods not provided).

CASE

20 gauge prepainted galvanized steel (G60) for superior corrosion
resistance. Insulated with foil faced insulation where required to prevent
exterior condensation. Drain connections, Two - 1/2" (12 mm) O.D.

CONTROLS

Illuminated power switch, 3 speed blower control, low voltage (24 VAC)
terminals for connection of remote controls and defrost light indicating
automatic operation.

DEFROST CONTROLS

Model 850FD - Interrupts supply air while exhaust air defrosts core.
Model 850DD - Supply bypass routes indoor air to defrost core.

WEIGHT

255 lbs. (116 kg)

SHIPPING WEIGHT

280 lbs. (127 kg)

1188 mm

(46 3/4")

200 mm

(8")

FRONT VIEW

1055 mm

(41 1/2")

508 mm

(20")

172 mm

(6 3/4")

INTERIOR DUCT

CONNECTION SIDE

625 mm

(24 5/8")

EXTERIOR DUCT

CONNECTION SIDE

MOUNTING POINTS

DRAIN CONNECTION

660 mm

(26")

200 mm

( 8")

200 mm

(8")

508 mm

(20")

149 mm

(5 7/8")

DIMENSIONS 850

mm (inches)

EXHAUST AIR

TO OUTSIDE

EXHAUST AIR

FROM BUILDING

SUPPLY AIR

TO BUILDING

SUPPLY AIR

FROM OUTSIDE

NOTE:
Service clearance
is 760 mm (30 in.)

508 mm

(20")

200 mm

(8")

DEFROST AIR

DD MODELS ONLY

CONTROLS

190 mm
(7 1/2 ")

263 mm

(10 3/8 ")

263 mm

(10 3/8")

OPTIONS

99-101

Sixty Minute Timer

99-130

Remote Wall Mount Dehumidistat Control
24 VAC only

All units conform to CSA and UL standards

WARRANTY

All units carry a 15 year warranty on the heat recovery cores
and a 2 year replacement parts warranty.

AIRFLOWS (Each Air Stream)

475 (1000)

425 (900)

378 (800)

329 (700)

282 (600)

235 (500)

190 (400)

143 (300)

94 (200)

42 (100)

AIRFLOW L/s (CFM)

25 (.1) 50 (.2) 75 (.3) 100 (.4) 125 (.5) 150 (.6) 175 (.7)

EXTERNAL STATIC PRESSURE IN PASCALS (in. W.C.)

TOTAL CURRENT DRAW (AMPS) @ 120 VAC

7.0 MED

7.9 HIGH

6.6 LOW

90%

80%

70%

282

(600)

329

(700)

TEMPERATURE EFFECTIVENESS

AIRFLOW IN L/s (CFM)

NOTE: Exhaust Relative Humidity (RH) at 40%

EFFECTIVENESS

378

(800)

425

(900)

HIGH SPEED

MED SPEED

LOW SPEED

235

(500)

PERFORMANCE

TI-111

0011

DATE: __________________________

PROJECT: ________________________________________

MECHANICAL CONTRACTOR: ________________________________

511 McCormick Blvd.

London, Ontario

N5W 4C8

Ph: (519) 457-1904
Fx: (519) 457-1676
Email: [email protected]
Website: www.lifebreath.com

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