Mark COLDSTREAM Technisches Handbuch Seite 20

7.2 Pre-season maintenance
• Cut power inlet off by using the main isolator-switch.
• Remove the protection cover and check for any damage that may have occurred. Clean the
cover well with mild detergent and store it in a place where it is protected from bad weather.
• Remove the machine top.
• If necessary clean the tank.
• TC models: check the tightness of the belt (*) – (see par. 2.6.2). When damaged it must be
changed.
• Check the evaporative pads and clean them from any dirtiness using water. If they have too much
incrustation, it is necessary to change them.
• Check that waterways are clean and that there are no obstructions in the water supply and
distributor in the upper part of the unit. Clean any debris in the water pump.
• Turn the machine on by using the main isolator-switch.
• Open the water supply. Start the system in COOLING mode and check that the discharge valve
is closed and that the water fills the tank up until the water inlet valve stops.
• Check that the water is distributed evenly on all evaporative pads.
• Check that the discharge valve is working properly; make sure that it opens within 5 minutes
after having pressed the OFF key.
• Check if there are losses of water.
• Check cables conditions.
• Replace and fix well the machine top using the bolts supplied.
(*) During working season, it is advisable to check it monthly.
The manufacturer does not assume any responsibility or is liable for any guarantee due to damage
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caused by non-observance of prescriptions, any non-conform installations and, in the case of
improper use, of the equipment by the final user.
7.3 Maintenance safety regulations
7.3.1 Clothing
The personnel charged to machine maintenance must not wear clothing with large sleeves, laces
or belts, which may cause danger. The personnel must also wear individual protection devices
conforming to the laws and regulations in force.
The maintenance personnel must be professionally qualified.
Before carrying out any maintenance operations, read this section of the manual carefully. Mark
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Climate Technology is not responsible for any damage or malfunctions due to lack of respect of the
indications contained in the present section of this manual.
During maintenance operations, place clearly and easily visible a sign stating "Work in Progress" on
all access areas to the department. Record all maintenance operations carried out on an appropriate
register, making sure to state: date, time, type of intervention performed and the name of the
person.
The personnel charged to maintenance that use any solvents must be equipped with individual
protection devices (safety glasses, filter masks, gloves) suitable for contact with the solvent used.
!
When using solvents it is strictly forbidden to smoke and use open flames. After use, ventilate the
building to help any residual vapours to leave.
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