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Safety Information
WARNING
• Hazards or unsafe practices that may result in severe
personal injury or death.
CAUTION
• Hazards or unsafe practices that may result in minor
personal injury or property damage.
General information
WARNING
Using the fan coil unit
• This product is for a centralized air conditioning
control.
• Failure to observe the following may cause
condensation water to overflow, leading to water
leakage.
− Do not turn off the power switch although the
product is not used for a long time.
− Do not turn off the power switch immediately
after stopping the operation.
− Be sure to attach a valve to each of the piping
inlet and outlet.
• When operating the product for the first time, purge
air by using the air vent valve. Failure to do so may
result in poor performance and noise.
• Do not insert the air vent hose into the drain hole of
the drain plate. Failure to do to may cause water to
overflow from the drain plate.
• Be sure to insulate the piping.
• Do not use any heat medium other than water.
• When the product is not used for a long time, drain
water.
• Before operating the product, make sure that the
control valve is open.
• Be sure to keep the start operation sequence of fan
coil ON → heat source ON and the stop operation
sequence of heat source OFF → fan coil OFF.
DB68-11289A-01_IM_DVM FCU WindFree 4way_EU_EN_.indb 3
• Observe the following to prevent condensation in
summer:
− Do not use the product in hot and humid places
(relative humidity 80% or more).
Water falling from the product may cause fire or
property damage.
− To ensure 24-hour flow of cold water, be sure to
install a 2-way electric valve. If not installed, water
overflow and condensation may occur.
When the fan coil unit is stopped, the interworking
control with the 2-way electric value (valve closed)
blocks cold water from circulating to prevent
condensation inside the product.
If no 2-way electric valve is installed, condensation
water may be generated and condensation may
develop inside the product.
− When the heat source (chiller, boiler) is not used
for more than 4 hours during the Cool mode, stop
the water circulation.
If the water circulation cannot be stopped, operate
the fan at a low speed.
• Observe the following to prevent the piping from
freezing and bursting in winter:
− Use a circulation pump to keep water running, or
run a hot water boiler in intense cold weather.
− If the product is not used for a long time, drain
water from the entire system.
• When a season ends, drain water from the entire
system, including the heat exchanger and the piping.
• When the supply water temperature is above 65 ℃,
the fan coil unit may enter the protection control
mode (operation stopped) for product protection.
Before installing or maintaining the fan coil unit
• Be sure to disconnect all power sources before
installation, service, or cleaning.
Installing the fan coil unit
• Make sure that installation must be performed by a
qualified installer.
− If the product is installed by the customer and if
it is not installed completely, it may cause water
leakage, electric shock, or fire.
• Install the product safely in a place that has enough
strength to support the product weight.
• If the strength is insufficient, the product may fall off,
causing personal injury.
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2022-04-26 오전 8:55:16
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