Robertshaw SER Serie Manual De Instalación, Operación Y Mantenimiento página 15

INSTALLATION EXAMPLES
Example diagram only-duct configuration may change depending on model
DIRECT CONNECTION of both the ERV SUPPLY AIR STREAM &
EXHAUST AIR STREAM to the FURNACE COLD AIR RETURN & SUPPLY AIR SIDE
Simplified Installation
Option 2
(Supply/Return Method)
• ERV must be balanced
• ERV must be interlocked with the furnace blower
• Check local codes /authority having
jurisdiction for acceptance
CAUTION
In humid climates, it may be preferable to have a dedicat-
ed ducting system to the house for the ERV instead of con-
necting the ERV to the central air-conditioner. Since the
central air-conditioner fan must be running continuously
to allow the fresh air from the ERV to be properly distrib-
uted throughout the house, it may pick up humidity from
the cooling coil when it is not operating and re-distribute it
to the house, causing excess humidity. This situation may
be particularly aggravated if the air-conditioner is over-
sized.
* Ducts connection may
vary depending on model
Outdoors
NOTES:
1. Furnace blower may be required to operate when ventilation from ERV is required. The furnace should be
interlocked with ERV.
2. The exhaust air connection should be upstream of the supply air connection to prevent exhausting any fresh air.
3. Weatherhood arrangement is for drawing purposes only. Six feet (2m) minimum separation recommended.
Eighteen inches (460 mm) above grade minimum.
4. Due to the differences in pressure between the ERV and the equipment it is being connected to, the ERV's airflow
must be confirmed on site, using the balancing procedure found in the installation manual.
(CONT'D)
Return Air
Note: Option 1 is the pre-
ferred/recommended method
when doing a simplified
installation
1m
(3'-3") min.
recommended
Cool Air
Return
1 m
(3'-3") min.
recom-
mended
* Unit is
normally
balanced
on HIGH
speed
with
furnace
blower
ON.
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