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8. INSTALLATION MANUAL (EXTRACT)
8-1. Cautions for Operation
Never fail to make the inspection opening at the specific place on the ceiling so you can perform the con-
stant cleaning or the equipment checking of filter and Heat Exchanger.
• The inspection opening shown below is necessary to clean the Heat Exchanger and the filter as re-
quired. If not cleaned, they are likely to get clogged, resulting in degradation of performance.
• This Energy Recovery Ventilators should be installed at the place where a larger space than the sizes
shown below can be secured for the ceiling space.
600
A
600
A
RA
(Room Air)
SA
(Supply Air)
Unit Body
RA
(Room Air)
SA
(Supply Air)
Unit Body
Maintenance Space
Maintenance Space
Inspection Opening : 450
Inspection Opening : 450
EA (Exhaust Air)
OA (Outside Air)
Heat Exchanger
EA (Exhaust Air)
OA (Outside Air)
Heat Exchanger
(For the inspection of Filters,
Heat Exchanger, Fans,
Motors and Damper.)
(For the inspection of Filters,
Heat Exchanger, Fans,
Motors and Damper.)
Unit : mm
Unit : mm
Note) Model VN-250SE has one Heat Exchange.
Note) Model VN-1KSAE has four Heat Exchange.
Model
VN-250SE
VN-350SE
VN-500SE
A
599
804
904
Model
VN-800SE
VN-1KSAE
A
884
1134
• Don't install it near the water-heater.
• Refrain from the following duct installing works.
Unit : mm
Model
VN-250SE
VN-350SE
VN-500SE
Ceiling Space A
320
Model
VN-800SE
VN-1KSAE
Ceiling Space A
440
20
A
(1) Excessive bending
(2) Multi-times bending
(3) Making the connecting duct smaller
Summary of Contents for VN-1KSAE
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