40 MS-SVN056C-EN
Outdoor Unit Installation
Maintenance recommendations
All technical personnel must be duly qualified and trained for all maintenance tasks.
Before starting maintenance procedures, cancel all power supply to the system. In some sections
of these procedures, control of the unit will be carried out with the equipment in operation. It is
therefore important that all technical personnel be properly qualified for these functions.
It is recommended to observe the following:
• Visual inspection and detection of any oil spots that may indicate possible refrigerant leaks.
• Checking proper anchoring of the outdoor unit. Verification of any type of vibrations and
confirmation that the unit is properly balanced.
• Confirmation that appropriate elevation of the unit from the ground up was taken into
consideration during installation procedures, in order to prevent any corrosion on the bottom
of the equipment.
• Ascertain that outdoor unit is able to drain condensate water appropriately in heating and
cooling modes.
• Proper adjustment of electrical connection terminals for power wiring and control wiring.
• Visual inspection of outdoor unit heat exchanger in search of dirt build-up. If dirt build-up is
observed, this should be removed by hydroelectric cleansing (using neutral PH cleaning agent)
and controlling pressure and water direction to prevent harming aluminum fins in the heat
exchanger.
• Checking and cleaning indoor unit air filters. Before starting, cancel all power supply to the
system.
It is recommended to conduct annual control of operating pressures and of energy consumption
of the outdoor unit.
Operating temperatures
Mode Outdoor temperature Room temperature
Cooling
18ºC - 43ºC / 64ºF - 109ºF 17ºC - 32ºC / 62ºF - 90ºF
Heating
(only heat pump model)
-7ºC - 24ºC / 20ºF - 76ºF 0ºC - 30ºC / 32ºF - 86ºF
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