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SH 704
Heat Recovery Ventilator
Fantech's smallest and most compact side duct connection HRV, the SH 704 unit
brings a continuous supply of fresh air into a home while exhausting an equal
amount of contaminated air. During winter, fresh incoming air is tempered by
the heat that is transferred from the outgoing air so you save on energy costs,
while during summer, the incoming air is pre-cooled if the house is equipped
with an air cooling system. The SH704 is equipped with automatic defrost
mechanisms so even if you live in the coldest climates you can use your HRV all
year long.
Unit is designed to operate continuously on a single speed. The automatic
defrost cycle consists of a fan shutdown. When the supply air stream
temperature goes below 23°F, the supply motor shuts down while the exhaust
motor continues to ventilate. Ambient air is passed through the unit for a period
of 3 or 5 minutes. The supply motor will then re-start and run at the preset
speed.
Airflow up to 56 cfm @ 0.4” Ps serves 1-2 bedroom homes
Single speed ventilation; no controls needed
Includes easy-mount wall bracket
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•
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Defrost cycle time
Maximum continuous airflow
in.wg
0.1” Ps
0.2” Ps
0.3” Ps
0.4” Ps
0.5” Ps
Temperature range OF
Run / Defrost time (min)
Net supply air flow
96
85
67
56
42
23 to 14
40 / 3
Gross supply air flow
100
88
70
58
43
14 to 5
30 / 5
Gross exhaust airflow
104
88
73
59
43
5 & lower
20 / 5
Apparent sensible
effectiveness
Latent recovery/moisture
transfer
cfm
Energy performance
Supply temperature
Net airflow
Consumed power
Sensible recovery
efficiency
Heating
F
cfm
W
%
%
-
32
55
36
57
67
-
32
67
40
55
63
-
O
32
84
40
54
60
-
-13
74
35
53
66
-
Specification data
Model
Duct
size
inch
V/~
W
A
cfm
SH 704
4
120 / 1
48
0.4
56
fantech
Voltage / Phase
Rated
power
Max
amps
Average airflow @ 0.4” Ps
Connection
Defrost
cycle
Shipping
weight
Side
Fan shutdown
29
Item #
List price
40356
748.00
lbs
USD