Safty Notes - Mitsubishi Electric LGH-200RVXT-E Manual

■Lossnay model selection advices
1. Operating environment
Install this product in an environment where the temperature ranges from -10℃ to +40℃ and the relative humidity is less than
80%RH. If condensation is expected to form, the fresh outside air should be treated.
2. Do not use under high temperature and humidity condition
Condensation will occur and water will gather inside the Lossnay cores under high temperature and humidity condition, such
as warm swimming pool, bathroom, greenhouse or foggy places.
3. Condition of outdoor, indoor and return air
Avoid using Lossnay under air condition with acid, alkalis, organic solvent, oil mist, paint, or harmful gas as pesticide,
corrosive gas, etc.
4. Insulation failure caused by salt or sulphur air and hot spring steam, rust, fire or malfunction may occur.
Installing high quality filters inside outdoor air duct if the Lossnay operates in salt or sulphur air conditions.
5. Intake of mist or outdoor air during off-mode operation
Outdoor air or mist may flow through the duct into your room when Lossnay is in off-mode in windy and foggy areas.
To prevent intake of outdoor air or fog, a damper is advised to be installed.
6. Entry of insects
When using the product in an environment where there is a window, or opening near the outdoor hood, so that insects are
likely to gather around the interior or exterior light, take note that small insects may intrude into the Lossnay filters.
7. By-pass ventilation
In the case of "By-pass" ventilation, the supply air temperature slightly rises more than the outside air temperature because of
the effect around the ducts or the unit motors.
8. Usage of M-NET.
When solely using Lossnay units, power supply unit is required to connect to centralised controller.
Number of power supply units or the transmission boosters should correspond with the connected Lossnay units.
■Caution for installation
1. Do not modify the unit as it may cause malfunction.
2. Do not install Lossnay unit vertically or on an incline. It may cause malfunction or decrease performance.
3. Leave sufficient space for maintenance purposes.
4. The location of the air inlet
Take care in locating air inlet to prevent intake of dirty air or disgusting smell from exhaust gas of factory, air from rubbish
disposal, etc.
5. Take precautions when using the product in a quiet location.
6. Heat insulation foam for duct
Take care as below to prevent duct condensation.
① The two outdoor ducts (OA and EA) must be covered with heat-insulating material in order to prevent condensation.
② If it is expected that the ambient temperature around the place where the Lossnay unit is installed will be high
during the summer air conditioning season, it is recommended that the indoor ductwork should be covered with insulation
material.
③ Outdoor air may come into the unit when not in operation the pressure difference between indoor and outdoor or the
outdoor wind. In this case you should install a damper.
④ It is possible for condensation and freezing to occur in the cold regions inside the unit because of the outdoor air
condition or humidity condition above ceiling. Make sure to install supplemental insulation foam.
⑤ In the case that air condition around Lossnay unit is high temperature in summer, it is recommended that there are
heat insulation foam on indoor side duct to prevent heat recovery decreasing by warming indoor duct.
In winter, it is possible to cool indoor side duct without heat insulation foam on indoor side duct.
7. Prevent entry of rainwater into Lossnay unit
Install weather louver or "Weather cover" for OA inlet & EA outlet. This is to prevent rainwater entering the Lossnay unit.
Ducts to outdoor (OA and EA) should decline by 1/30 or more.
8. Install the anchor bolts to ensure the product's weight or earthquake load. Correctly rated wire/chain may also be used.
9. Do not install this product in a place where it is exposed to ultraviolet light. UV may damage covering insulation.
10. Electrical Work
A single pole isolator must be installed at the origins of mains power supply.
Use single flush box, to support remote controller.
Must connect ground wiring.
When connecting external devices (electrically operated damper, lamp, monitoring unit, etc.) using output
signals of the Lossnay unit, make sure to install safety equipment for the external devices.
(It could cause fire, damage, etc. without safety equipment)

SAFTY NOTES

DATE TYPE
15-Oct-2015 MODEL
NUMBER
※Specification may be subject to change without notice.
CEILING RECESSED LOSSNAY
LGH-200RVXT-E
N15HHGU0029B
4/5