4
WARNINGS
• Only authorised technicians are allowed to disassemble and repair this
product.
• Improper handling may result in fire, electric shock or injury.
• Do not install this product in a refrigerated warehouse, swimming pool or
other location where temperature and humidity are significantly different
from normal indoor air. Disregarding this warning may cause the unit to
malfunction.
• Do not install this product where it will be directly exposed to rain.
• Do not install this product in an area where acid, alkaline vapour or vapours
of organic solvents, paint or other toxic gas are present, gas containing
corrosive components or high concentrations of oily smoke are present.
Disregarding this warning may lead not only to malfunction but also to fire or
loss of power.
• Install the WTU in an environment where the temperature is between -10
and +40 degrees Celsius and the relative humidity is less than 60%.
• If condensation occurs, preheat the fresh air with a CBRF duct heater. Always
use a pre-heater with the WTU-EC-TA series to prevent freezing in the heat
exchanger in winter.
• Choose a suitable, solid place to install the product and do so carefully
and safely.
• The external ducts must be installed with a slope to the outside and correctly
insulated. (Rainwater can cause short circuits or other damage).
• Gloves must be worn during installation. Ignoring this warning may lead to
injury.
• Attach the product securely to the earth contact.
• When not using an earthed power cord, an isolating switch with a minimum
gap of 3 mm between contacts must be used to safely disconnect the power
supply.
Note:
A system which is not installed in accordance with the installation and operating
instructions is not covered by the guarantee.
Summary of Contents for WTU-1000-EC-E
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Page 16: ...16 Note The connections shown in a box are optional Electrical Connections WTU EC E IE TA...
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