GE Zoneline AZ9VH Manual Del Propietario E Instrucciones De Instalación página 13

Installation Preparation
Indoor Air Flow Data
Indoor air flow may be determined by measuring the
external static pressure (ESP) of the duct system and
then using the chart below to determine the actual
airflow. Under no circumstances should the Zoneline
unit be operated to an ESP in excess of .3" W.C..
Operation of the Zoneline under this condition will result
in inadequate air flow thus leading to poor performance
and/or premature component failure.
Airflow – CFM @ 230 Volt and @ 265 Volt
ESP (in.
water)
ON
High
CFM
0.10 500
0.15 485
0.20 470
0.25 440
0.30 410
* Do not operate unit in these conditions.
Your airflow should be balanced based on many factors,
such as available ESP, room CFM, and ductwork.
Consult an HVAC engineer for proper applications.
External static pressure (ESP) can be measured with a
manometer or pitot tube. Once this ESP is established,
you can calculate the CFM using the above chart.
49-5000640 Rev. 1
Indoor Fan CFM
Fan Boost Mode
OFF
77 78
Medium Medium Low
CFM CFM CFM
433 433 363
416 416 333
385 385 295
350 350 230
313 313
Indoor Air Flow Data (cont)
Higher CFMs tend to increase Sensible capacity,
enhance room circulation and increase duct noise,
while lower CFMs tend to increase latent capacity and
reduce noise.
Ductwork
Prepare the closet ductwork for later connection
to the case.
The duct system should be designed for a maximum
friction rate of .30" water column taking into consideration
all fittings, registers and/or diffusers.
*
DO NOT operate unit without a supply duct attached.
For installations that require a ducted return, the
rectangular duct must be no smaller than 20"W x 20"H
and no longer than 12". In addition, it must be straight
with no bends, turns, contractions, or expansions.
The total flow rate (CFM) and external static pressure
(ESP) available can be estimated from the charts on
this page. Use these charts to select your fan speed
setting.
The collar on top of the unit accepts standard 10" duct.
Pull all duct tight. Extra duct slack can greatly increase
static pressure.
NOTICE:
airflow restrictions. Do not use flex duct for 90°
bends or unsupported runs of 5 ft. or more.
CFM Recommendations
AZ9VH12
500 433 363
•
• = Recommended Mid Range
Flex duct can collapse and cause
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