Hyundai HDFN-80-1400 Operation Instructions Manual page 5

4. Cautions for Changeover between Cooling and Heating, Inspection and Maintenance
(1) At the time of changeover between cooling and heating operation, be sure to understand the
operating procedure for changeover well and then changeover as per the procedure correctly.
(2) When the oil in the purge pump is replaced with new oil, be sure to stop the operation of the
pump to avoid injury and to splash of the oil.
(3) Be sure to perform a periodical inspection of the strainer, etc. and to remove the dusts and water
in the fuel pipe. If they remain in the piping, it may cause a fire due to improper combustion.
(4) Be sure to inspect the exhaust gas pipe periodically to confirm there is no gas leakage in order
to avoid an oxygenpoor accident.
(5) Be sure to switch off the power source of the absorption chillerheater when you clean or inspect
the cooing tower fan, the chilledhot water pump, etc. linked with the chillerheater to avoid an
electric shock or injury by the fan.
(6) Be sure to install or remove the heavy casing of the control panel carefully. If you handle it
carelessly, it may cause injury.
(7) Be sure to request our service agent for the inspection or maintenance lf the absorption
chillerheater. Improper inspection and maintenance may cause accidents such as an electric
shock, a fire or a burn.
(8) Be sure to use the fuses with correct capacity. Without using them, it may cause a machine
trouble or a fire.
(9) Do NOT let the absorption chillerheater and the control panel get wet. It may cause an electric
shock.
(10) Do NOT touch lithium bromide solution in stock or leaked lithium bromide solution directly with
hands. If lithium bromide solution is touched with metal or skin, it may cause metal corrosion and
skin inflammation by the deposition of the solution.
(11) Do NOT step on the absorption chillerheater. Falling off from the machine may lead to injury.
5. Cautions for Repairing, transferring or junking of the chillerheater.
(1) The structures of the absorption chillerheater and the electrical instruments in it are subject to
change without customer's approval as far as customer's requirements for specifications are
satisfied.
(2) No other persons than expert engineers shall disassemble, repair or modify the absorption
chillerheater. Imperfection in repairing, disassembling or modification may cause an electric
shock or a fire.
(3) The transfer and the movement of the absorption chillerheater shall be allowed only by expert
engineers. Imperfection in such works may cause a water leakage, an electric shock or a fire.
(4) When the absorption chillerheater is scrapped, request such a scrapping work to be done to
specialists. Imperfection in the work may cause the vessel to lead to metal corrosion or skin
inflammation by the deposition of the solution.
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