INSTALLATION MANUAL FOR INDOOR UNIT
All Wiring of this installation must comply with NATIONAL, STATE AND LOCAL REGULATIONS. These
instructions do not cover all variations for every kind of installation circumstance. Should further information be
desired or should particular problems occur, the matter should be referred to your local distributor.
BE SURE TO READ THESE INSTRUCTIONS CAREFULLY BEFORE BEGINNING INSTALLATION. FAI-
LURE TO FOLLOW THESE INSTRUCTIONS COULD CAUSE SERIOUS INJURY OR DEATH, EQUIPMENT
MALFUNCTION AND/OR PROPERTY DAMAGE.
(1) Preparation of indoor unit
Before or during the installation of the unit, assemble necessary optional panel etc. depending on the
(2) Select places for installation satisfying following conditions and at the same time obtain the
consent on the part of your client user.
(a) Places where chilled or heated air circulates freely.
When the installation height exceeds 3m warmed air stays close to the ceiling. In such cases, suggest
your client users to install air circulators.
(b) Places where perfect drainage can be prepared and sufficient drainage.
(c) Places free from air disturbances to the suction port and blowout hole of the indoor unit, places
where the fire alarm may not malfunction or short-circuit.
(d) Places with the environmental dew-point temperature is lower than 28*and the relative
humidity is less than 80%.
(When installing at a place under a high humidity environment, pay sufficient attention to the
prevention of dewing such as thermal insulation of the unit. )
(e) Ceiling height shall have the following height.
(3) Avoid installation and use at those places listed below.
(a) Places exposed to oil splashes or steam (e.g. kitchens and machine plants).
Installation and use at such places incur deteriorations in the performance or corrosion with the
heat exchanger or damage in molded synthetic resin parts.
(b) Places where corrosive gas (such as sulfurous acid gas) or inflammable gas (thinner, gasoline,
etc) in generated or remains. Installation and use at such places cause corrosion in the heat exchanger
and damage in molded synthetic resin parts.
(c) Places adjacent to equipment generating electromagnetic waves or high-frequency waves such as
Generated noise may cause malfunctioning of the controller.
50 or more