Fantech SE704 Installation, operation and maintenance manual - page 14
14
INSTALLATION EXAMPLES (CONT'D)
DIRECT CONNECTION of both the HRV/ERV SUPPLY AIR STREAM and
EXHAUST AIR STREAM to the FURNACE COLD AIR RETURN
Simplified Installation
Option 1
(Return/Return Method)
• It is mandatory that the furnace
blower run continuously or HRV/ERV
operation be interlocked with the
furnace blower
• Check local codes/authority having juris-
diction for acceptance
NOTES:
1. Furnace blower is required to run when
HRV/ERV is operating. The furnace should be
set to run continuously or interlocked with
HRV/ERV.
2. A minimum separation of 39 inches (1m) is
recommended between the two direct connec-
tions.
3. The exhaust air connection should be upstream
of the supply air connection to prevent exhaust-
ing any fresh air.
4. Weatherhood arrangement is for drawing pur-
poses only. 18” (460 mm) above grade mini-
mum.
5. Due to the differences in pressure between the
HRV/ERV and the equipment it is being con-
nected to, the HR/ERV’s airflow should be con-
firmed on site, using the balancing procedure
found in the installation manual.
Note: Option 1 is the preferred/rec-
ommended method when doing a
simplified installation
* Unit is
normally
balanced
on HIGH
speed
with
furnace
blower
ON.
Return Air
1 m
(3’-3”) min.
recommended
Cool Air
Return
Outdoors
40”
Min.
* Ducts connection may
vary depending on model
Example diagram only-duct configuration may change depending on model