10
920-075-10
Ductwork Preparation
Duct ESP:
Chassis Installation
Install the following components
Figure 8
Slid-in View / Chassis
Installation
Determining the Indoor CFM: Chart A – CFM
Correct CFM (if needed):
Chart B – Correction Multipli
ers
A. Ensure that the wall plenum is installed in accordance
with the VPAWP1-8/1-14 Installation Manual.
B. Place the chassis into the closet with the outdoor side
facing the wall plenum opening.
C. Slide the chassis into the wall plenum until the plenum
divider seal is established. (See Figure 8)
Cut/Sever
Although great care has been
taken to minimize sharp edges
in the construction of your unit,
use gloves or other hand
protection when handling unit.
Failure to do so can result in minor
to moderate personal injury.
CAUTION
Excessive Weight Hazard
Use two or more people when
installing your air conditioner.
Failure to do so can result in
back or other injury.
CAUTION
Model
VEA12/VHA12
VEA18/VHA18
VEA09/VHA09
ESP (")
.00"
.10"
.20"
.30”
Low
340
300
230
140
High
385
340
280
190
Low
420
350 *
290
250
High
470
420 **
350
300
Low
430
400
340
290
High
480
450
400
330
Highlighted values indicate rated performance point.
Rated performance for
*
VEA12
Rated Performance for
** VHA12
To determine your system's indoor external static pressure (ESP,
in inches of water) use a duct calculator (as provided by your duct
supplier). Include all flex duct transitions and discharge grille(s).
If flex duct is used, be sure all the slack is pulled out of the flex
duct. Flex duct ESP can increase considerably when not fully
extended. DO NOT EXCEED a total of .30 ESP, as this is the
MAXIMUM design limit for the VERT-I-PAK A-Series unit.
Indoor Airflow Data
The Vert-I-Pak A series units must be installed with a free return
air configuration. The table below lists the indoor airflow at
corresponding static pressures. All units are rated at low speed.
The Vert-I-Pak units are designed for either single speed or two
fan speed operation. For single speed operation refer to the
airflow table below and select the most appropriate CFM based
on the ESP level. Connect the fan output from the thermostat to
the unit on either the GL terminal for low speed or to the GH
terminal for high speed operation.
For thermostats with two-speed fan outputs connect the low
speed output to the GL terminal and the high speed output to the
GH terminal.
The Vert-I-Pak chassis must be inserted into the wall plenum so that the plenum divider gasket makes contact with the plastic condenser
baffle on the unit. The chassis will fit approximately 2
⅜
" into the wall plenum.
