Mitsubishi Electric Lossnay LGH-F1200RX5-E, Technical Manual

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U-72
CHAPTER 7
•
Installation Considerations
•
Always leave inspection holes ( 18 or 24) on the air
filter and Lossnay Core removal side.
•
Always insulate the two ducts outside the room (intake
air and exhaust air ducts) to prevent condensation.
•
It is possible to change the direction of the outside air
ducts (OA and EA side).
•
Do not install the vent cap or round hood where it will
come into direct contact with rain water.
1. LGH-Series Lossnay Ceiling Embedded-Type
(LGH-RX
5
Series)
LGH- F300 · F470 · F600RX
5
•
Always leave inspection holes ( 18 or 24) on the air
filter and Lossnay Core removal side.
•
Always insulate the two ducts outside the room (intake
air and exhaust air ducts) to prevent condensation.
•
If necessary, order a weather cover to prevent rain water
from direct contact or entering the unit.
LGH- F1200RX
5
Installation diagram
Installation diagram
Duct
Duct
Duct diameter 10”dia
(user supplied)
Duct
diameter 8”dia
(user supplied)
(user supplied)
Exhaust grille
(user supplied)
(user supplied)
(user supplied)
(user supplied)
Ceiling suspension
bolt
18( 24) Inspection port
(user
supplied)
Y piping,Dwindle pipe
Ceiling suspension
bolt position
Ceiling
suspension
bolt position
Exhaust grille
Ceiling
suspension
bolt position
SA
(supply air)
RA
(return air)
OA
(fresh-air intake)
EA
(exhaust-air outlet)
OA
(fresh-air intake)
EA
(exhaust-air outlet)
Heat exchanger/filter
maintenance space
Min.
23 5/
8
5 7/8
to
9 7/
8
50 1/8
39 3/4
SA
(supply air)
Air-supply grille Exhaust grille
RA
(return air)
Duct incline
Over 1/30
(toward the wall)
to prevent entry
of rainwater
Air-supply grille
(user supplied)
(user supplied)
Air-supply grille
Air-supply grille
18( 24)
Inspection port
(user supplied)
(user supplied)
A
OA
(Outside air)
EA
(Exhaust air)
OA (Outside air)
EA (Exhaust air)
16 5/16
16
5/1
6
Suspension bolt position
Suspension bolt position
Suspension bolt
position
Exhaust air grille
B
Supply air grille
23 5/8 or mor
e
5 7/8
to
9 7/8
Inspection
opening
Duct downward slope 1/30
or more (to wall side)
Deep hood or
weather cover
Duct diameter 8”dia
(ordered by customer)
Inspection opening
Supply/
exhaust air grille
Suspension bolt position
(ordered by customer)
RA
(Return air)
SA
(Supply air)
Lossnay Core/
air filter/
fan maintenance
space
(Rainwater entrance
prevention)
Unit (inch)
Unit (inch)
material
Heating-insulation
Taping
Heating-insulation
Ducting
Indoor
Outdoor
material
Duct connecting flange
Taping
Duct
Should secure with airtight
tape to prevent air leakage. Should secure with airtight
tape to prevent air leakage.
Cover duct with insulation
foam prevent condensation.
EA
(exhaust
air outlet)
OA
(outside
air intake)
EA
(exhaust
air outlet)
OA
(outside
air intake)
Lossnay unit
Electrically operated damper
(Protection against the intrusion of cold air
while Lossnay is stopped in winter)
(To be provided by the customer)
•
In a region where there is risk of freezing in winter, it is
recommended to install an Electrically operated damper,
or the like, in order to prevent the intrusion of (cold)
outdoor air while Lossnay is stopped.
Air volume (CFM) Model
Dimension
A B
300 LGH-F300RX type 34 1/2 41 7/8
470 LGH-F470RX type 39 3/4 40 13/16
600 LGH-F600RX type 39 3/4 49 3/4