Selecting An Installation Site; Installing The Fresh Master - Mitsubishi Electric Fresh Master GUF-50RDH4 Installation Instructions Manual

4. Selecting an installation site

the weight of unit.
site should be determined.
- Select a site where the unit is not affected by entering air.
air is not blocked.
- Select a site where refrigerant piping and exhaust/outdoor ducts
can easily be led to the outside.
- Select a site which allows the supply air to be distributed fully in
room.
- Select a location where the inspection opening can be installed.
-
ties.
-
supply air side. (Fire detector may operate erroneously due to the
heated air supplied during heating operation.)
- When special chemical product may be scatter all around such
before installing unit. (The plastic components may be damaged
depending on the chemical product applied.)
swimming pool or other location where the temperature and hu-
(Failure to heed this warning may result in electrical shock or
malfunction.)
- The electro-magnetic susceptibility has been chosen at a level
well as outside of the buildings. All places of operation are charac-
terised by their connection to the public low voltage power supply
system.

5. Installing the Fresh Master

5.1. Fixing hanging bolts
(Use M10 or M12 hanging bolts. The bolts and washers should be
(Give site of suspension strong structure.)
Hanging structure
- Ceiling: The ceiling structure varies from one building to another.
1
the ceiling from vibrations.
2 Cut and remove the ceiling members.
3
the ceiling boards.
4.1. Install the Fresh Master on a ceiling
strong enough to sustain its weight
Warning:
- The unit must be securely installed on a structure that can
sustain its weight. If the unit is mounted on an unstable
structure, it may fall down causing injuries.
space
-
-
provide a space as much as possible.
4.3. Standard installation examples
EA
(exhaust)
OA
(outdoor)
Maintenance
space
Cistern tank
Duct downward
gradient to wall
(more than 1/30)
Deep hood or
weather cover
EA
(exhaust)
OA
(outdoor)
Supply pipe
Drain pipe gradient to wall
(more than 1/100)
Hanging bolt location
Exhaust grille
Inspection opening
Duct (provided by
Hanging bolt
customer)
(provided by customer)
Servicing
Inspection
valve
opening RA
Exhaust
(return) (supply)
grille
Hanging bolt (M10 or M12)
Nut
Washer
Nut
Supply grille
Supply
SA
grille
6