Panasonic R410A service manual Specifications, Duct for Fresh Air, Accessories, Installation, Fig

6-9. Duct for Fresh Air For fresh air intake

There is a duct connection part on side of the indoor unit. (Fig. 1-27)

Air-intake plenum (including Duct connection box and flange) are attached to the indoor unit when used to take fresh outdoor air.

Air-intake plenum	Type
CZ-26BCU1U	CZ-24KPU1U
	(S-26PU1U6)
CZ-42BCU1U	CZ-36KPU1U
	(S-36PU1U6, S-42PU1U6)
(1) Accessories

1. Specifications

	ø1/8	hole
-
4
2-3/8	ø4-
2-5/32	13/32

Detail of fresh air intake

	Check that the following parts are in the box when
	unpacking.
	NAME	Q’ ty	REMARKS
	Screw (M5xL4-7/8”)	4	Air-intake plenum (for fastening)
	Screw (M4xL4-1/2”)	8	Duct connection flange/box (for fastening)
1	Duct connection box	1	(for fresh air)
	Duct connection flange	1	(for connecting fresh air duct)

(2) Installation

Installation steps (a) to (d) are the same for both the CZ-26BCU1U and the CZ-42BCU1U. The drawing illustrates installation of air-intake plenum to the CZ-26BCU1U

(a) Installing the air-intake plenum	Installation screws
	(M5 × L4-7/8", 4 pcs)
Set the air-intake plenum to the indoor unit taking care
not to set to the incorrect direction.
Fasten the air-intake plenum with the supplied screws.
(M5 × L4-7/8", 4 pcs)
(b) Installing the duct connection box
Fasten the duct connection flange to the duct connection
box with the accessory screws. (M4 × L1/2", 4 pcs)	Air-intake
Fit the duct connection box into the rectangular hole of
	plenum
the air-intake plenum and fasten it to the side of the
air-intake plenum with the accessory screws.
(M4 × L1/2", 4 pcs)
(c) Installing the indoor unit
Install the indoor unit to the ceiling.
(Install the indoor unit according to instructions enclosed
with the outdoor unit.)
When installing in a pre-	Indoor
	unit
CAUTION existing location, install the
indoor unit before installing
the duct connection box.

Fig. 1-27

Socket cover

Fig. 1-28

Unit: inch

Panel lead wire (3P, 2P)

Clamper

3P socket (White)

2P socket (Green)

(switch box side)

3P socket (White)

2P socket (Green)

(ceiling panel side)

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