Dometic 57908.521 Installation & Operating Instructions Manual Download Page 11

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Note: The adhesive on insulation is extremely

Note: The adhesive on insulation is extremely
sticky. Be sure part is located where desired

sticky. Be sure part is located where desired

sticky. Be sure part is located where desired
before pressing into place. We recommend pull-

before pressing into place. We recommend pull-

before pressing into place. We recommend pull-
ing off part of backing paper, locating part and

ing off part of backing paper, locating part and

ing off part of backing paper, locating part and
then remove backing paper as insulation is pressed

then remove backing paper as insulation is pressed

then remove backing paper as insulation is pressed
into place.

into place.

into place.
a.

Excess width is intended to seal the divider plate
to the sides of the 14" opening, This is to prevent
cold discharge air from circulating into the Air
Conditioner return air opening.

If the insulation is too high, stick the excess height
of insulation to the Air Conditioner base pan. Note:
Do not cover up unit rating plate.

C. INSTALLATION OF ELECTRONIC

INSTALLATION OF ELECTRONIC

INSTALLATION OF ELECTRONIC
CONTROL BOX

CONTROL BOX

NOTE: If your installation includes the optional Elec-

NOTE: If your installation includes the optional Elec-
tric Heat Kit, install it at this time. This optional Heat Kit

tric Heat Kit, install it at this time. This optional Heat Kit

tric Heat Kit, install it at this time. This optional Heat Kit
is approved for use on 590 Series Air Conditioners

is approved for use on 590 Series Air Conditioners

is approved for use on 590 Series Air Conditioners
only. Follow the instructions with the heat package for

only. Follow the instructions with the heat package for

only. Follow the instructions with the heat package for
its installation procedure.

its installation procedure.

Place insulation in position
(Do not Cover unit rating plate)

Freeze Control with
wires to the right side

Coil
Return
Bend

Remove
Hang
Tag

Terminate the 4-conductor telephone cable(s)
protruding into the 14" roof opening. The cable(s)
must be terminated with a telephone RJ-11 con-
nector (Part No. ___________). Refer to the crimp
tool manufacturer for crimping instructions. En-
sure that the cable is installed into the connector
correctly before crimping. (See figure below).

Remove the screw holding the junction box cover
to the A/C Control Box

A/C Control Box

A/C Control Box. Remove the cover.

579 AND 590 SERIES

1) Snap the Freeze Control Sensor

Freeze Control Sensor

Freeze Control Sensor (Part No.

3106480.001) onto the return bend of the evapo-
rator coil. (See figure below).

a. Locate "D" shaped notch in the flange of the

evaporator coil.

b. Place the horseshoe end of the Freeze Control

Freeze Control

Sensor

Sensor through this notch and snap it onto the
return bend. When positioned correctly, the
control wires will be 90 degrees to the direction
of the coil fin surface.

Plug the unit electrical cord into the mating con-
nector on the Electronic Control Box

Electronic Control Box

Electronic Control Box. These

connectors are polarized and will easily snap
together. DO NOT FORCE

DO NOT FORCE

DO NOT FORCE.

Plug the telephone cable(s) into the telephone
jack(s) visible on the side of the Electronic Con-

Electronic Con-

trol Box

trol Box. (It does not matter which one.)

Locate the Electronic Control Box

Electronic Control Box

Electronic Control Box on the ceiling

template.

Drive two #10 x 3/8 blunt point phillips head screws
(provided in the parts package) through the ceiling
template into the holes in the Electronic Control

Electronic Control

Box

Box to hold it in place.