Mitsubishi Electric Lossnay LGH-15RX3 Technical Manual page 105

CHAPTER 7 G Installation Considerations
6.5 Precautions for installation
(1) Installation and usage conditions
G
The unit can be used in a temperature range of -10°C to +
80°C.
G
The Lossnay cannot be used where toxic gases and
corrosive elements such as acids, alkalis, organic solvents,
oil mist or paints exist.
G
Always mount an air filter on the air suction sides (intake
and return sides).
G
A minimum of 800 mm is required for the Lossnay Core and
air filter maintenance space.
G
Drainage may occur when the air from the high temperature
side passes through the Lossnay Core. Construct the air
passage so that the high temperature air flows from top to
bottom, and connect a drain pipe.
(2) External dewing on product
Moisture may condense on the outside of the product or the dew may drip depending on the product installation site or the
conditions of the air passing through the Lossnay Core. Install the unit in a place that will not be affected by the dew that
drops.
Perform the following measures if the place will be affected:
1) Insulate the outside of the product.
2) Manufacture a drain pan that covers the entire unit, and catch the dew that drips from the entire unit.
(3) Mounting of air filter
Always mount the optional air filter (PZ-80F, PZ-500F) to the air suction sides (intake and return sides) of the Lossnay
Core to prevent the Core from clogging.
• When exhausting air containing oil mist or paint, etc., filter the mist with a grease filter or high efficiency filter before
passing the air through the Lossnay.
(4) Dew and Frost on Lossnay Core
If a line is drawn horizontally from the high temperature
conditions of B to C, as shown on the psychrometric chart,
moisture will condense on the Lossnay Core, and the air at
the outlet will be the conditions shown at C'.
If the C' temperature is lower than 0°C, frosting or ice may
occur in the Lossnay Core. Thus, heat the air from the low
temperature side from A to A', so that C' is higher than 0°C.
Caution
When using the plastic Lossnay Core in the moisture condensed state, the pressure loss on the condensed side will
increase by approximately 50%, so use fans that meets these conditions.
102
Low
temperature
side air
intake
High
temperature
side air
outlet
Drainage
occurrence position
Drain pipe
Saturation curve
C
Equal enthalpy
line
C'
A A'
Dry bulb temperature (°C)
Lossnay Core
High
temperature
side air
outlet
Low
temperature
side air
intake
B