Friedrich 920-159-01 (10-03) operation manual Indoor Airflow Data, Chassis Installation

920-159-01 (10-03)

5) 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 shipped from the factory and are rated at low speed.

To change to high speed replace the low speed lead (blue) with the high speed lead (black) on the blower relay.

	VEA/VHA24K
	Low	High
.1” ESP	750	815
.2” ESP	725	780	All values listed are inches
.3” ESP	700	745	W.C. with a wet indoor coil
			with filter installed.
.4” ESP	675	700

6) Chassis Installation

NOTE: Prior to installing the chassis, ensure that the drain pan and line are free from debris.

A.Ensure that the wall plenum is installed in accordance with the VPAWP1-8/1-14 Installation Manual.

B.Ensure that the VPDP1 drain pan is installed correctly (see page 8). Using the 3/4" plugs supplied with the pan, plug the unused condensate drain hole. Connect a drain to the condensate exit location. Be sure to use teflon tape or approved pipe sealant on all drain connections and plugs (see page 8).

C.Place the chassis into the closet with the outdoor side facing the wall plenum opening.

D.Slide the chassis into the wall plenum until the plenum divider seal is established and the factory-installed chassis to plenum gasket has sealed to the top flange of the plenum. (See Figure 10)

Figure 10

Slide-in View / Chassis Installation

The Vert-I-Pak chassis must be inserted into the wall plenum so that the plenum divider gasket makes contact with the condenser baffle in the unit. The chassis will fit approximately 2 3/8" into the wall plenum.

NOTE: Prior to installing the chassis,
ensure that the drain pan and line are free	23/8
from debris.

Chassis to plenum gasket

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