Mitsubishi Electric VL-350CZPVU-R-E Quick Start Manual page 6

【Duct piping】
1. When metal ducts penetrate through metal-sheeted wooden buildings or structures, install the product so that
there is no electrical contact between the metal ducts and the metal sheeting.
2. Secure duct piping with commercially available fixing bands, aluminum tape, etc. to prevent piping from coming
loose. Install outdoor piping from the product so that it is tilted at a downward pitch of at least 1/30 towards the
outside.
3. Be sure to insulate ducts down to the base of the duct connecting flanges.
4. Do not allow duct piping to contact the inspection opening, ceiling hanging bolts, beams, pillars, and other duct
piping.
5. When discharging the air from a bathroom, use ducts made of a material that does not allow water to leak.
6. When using PCV ducts or metal ducts for the SA side ducts, be sure to connect ducts having silencer before the
grill.
7. Calk the duct connecting flanges that discharge air from the bathroom with calking compound. When using calking
compound, take care to prevent it from oozing from the ducts.
【Duct heater】
1. When using duct heaters (supply air preheaters, supply air after-heaters), make sure to use safety devices that do
not have self-return functions. Do not supply the duct heaters with electricity directly from the product.
2. When using duct heaters (supply air preheaters, supply air after-heaters) that do not have temperature control
functions, select duct heaters that have the appropriate capacity according to the airflow passing through the
heaters.
【Drain piping】
1. Be sure to connect drain piping by the following procedure to prevent freezing and dew condensation forming on
the surface of the piping.
- Connect the drain piping on the indoor side of the insulation layer.
- Insulate the drain piping up to the end of the piping
- Do not let the end of draing piping be immersed in the rain gutter, etc.
(At times of heavy snow, the rain gutter freezes and drain water is not discharged, which results in water
leaking from the Lossnay unit)
2. Connect the drain pipe so that it has at least three degree of downward gradient from the lower part of the unit.
3. Be sure to attach commercially available check valves.
4. This unit has two drain pipes for EA and SA.
- Drain pipe (EA) : Piping required.
- Drain pipe (SA) : Depend on temperature and humidity, see the following conditions.
■Care and attention on the use of Lossnay unit
1. To ensure correct and safe use, read the instruction manual thoroughly.
2. To keep the Lossnay functions in good condition for a long time, clean dirt or dust from the filters periodically.
3. To prevent dew condensation forming on the Lossnay core and water droplets from adhering to the product
when there is a drop in the temperature of the outside air, operation of the supply air fan is changed
automatically.
(The exhaust fan runs continuously regardless of outdoor air temperature.)
(Even while the supply air fan has stopped, the Lossnay unit sometimes operates periodically to measure
the outdoor air temperature)
SAFETY NOTES
DATE TYPE
MODEL
12-Jan-21
NUMBER
※Specification may be subject to change without notice.
Heat Recovery Ventilator LOSSNAY
VL-350CZPVU-R-E
N19SGGD0003B
6/6