Panasonic FY-250ZDY2 Installationshandbuch Seite 4

Cautions for Operation
Never fail to make the inspection opening at the specific place on the ceiling so you can perform the constant cleaning or the
equipment checking of filter and heat exchange element.
■ The inspection opening shown below is necessary to clean the heat exchange element and the filter as required. If not cleaned,
they are likely to get clogged, resulting in degradation of performance.
RA
SA
(Room
(Supply
Unit Body
Air)
Air)
EA (Exhaust Air)
OA (Outside Air)
Heat Exchange Element
Note) Model FY-250ZDY2 has one Heat Exchange
Element.
Model No.
FY-250ZDY2
FY-350ZDY2
FY-500ZDY2
■ 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.
■ Don't install it near the water-heater.
■ Refrain from the following duct installation works.
(1) Excessive bending
■ Do not use in bathrooms or food preparation areas etc.
If you use the unit at the place of much soot and high humidity, the filter or the heat exchange element gets clogged and disables
you to use it.
■ Use the Energy Recovery Ventilators in the ambient temperature of 40°C or less.
Never install the unit at the place where the flame likely reaches directly the unit. If you use it at the atmosphere of more than 40°C
for hours, it is likely to cause deterioration or deformation or damage of the resin part.
■ Be careful of dewing and frosting.
As shown in the figure to the right, suppose a high temp absorbing air condition A and a low
temp absorbing air condition B are plotted on the air line figure, then a high temp air A is
heat-exchanged by the unit and goes out of the saturation curve as shown by Point C. In
this case, the unit will be dewed or frosted. To avoid this, you are required to heat a low
temp air B up to B' so as to get C' below the saturation curve, before using the unit.
Maintenance Space Maintenance Space
Inspection Opening 450
(For the inspection of Filters, Heat
Exchange Elements, Fans, Motors
and Damper.)
Unit: mm
A
599
804
904
Model No.
FY-250ZDY2
FY-350ZDY2
FY-500ZDY2
(2) Multi-times bending
SA
RA
(Supply
(Room
Unit Body
Air)
Air)
EA (Exhaust Air)
OA (Outside Air)
Heat Exchange Element
Note) Model FY-01KZDY2A/B has four Heat Exchange
Elements.
Model No.
FY-800ZDY2
FY-01KZDY2A/B
Ceiling Space A
320
FY-01KZDY2A/B
(3) Making the connecting duct smaller
Maintenance Space
Inspection Opening 450
(For the inspection of Filters, Heat
Exchange Elements, Fans, Motors
and Damper.)
Unit: mm
A
884
1134
Model No. Ceiling Space A
FY-800ZDY2
440
Dry-bulb temperature (°C)
Unit: mm
3