IOM SyScroll20 35Air

ManualsBrandsSystemair ManualsAir ConditioningSYSCL 25 AIR CO (W)

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2 - Safety

! periodically check the board’s internal wiring

! do not use cables having an inadequate section or flying

connections, even for limited periods of time or in an emergency

Prevention of other residual risks

! make sure that the connections to the unit conform to the

instructions provided in this manual and on the unit’s panelling

! if you have to disassemble a piece, make sure that it has been

properly mounted again before restarting the unit

! do not touch the delivery pipes from the compressor, the

compressor and any other piping or component inside the

machine before wearing protective gloves

! keep a fire extinguisher fir for electrical appliances near the

machine

! on the units installed indoor, connect the safety valve of the

refrigeration circuit to a piping network that can channel any

overflowing refrigerant outside

! remove and leak of fluid inside and outside the unit

! collect the waste liquids and dry any oil spillage

! periodically clean the compressor compartment, to remove any

fouling

! do not store flammable liquids near the unit

! do not disperse the refrigerant and the lubricating oil into the

environment

! weld only empty pipes; do not approach flames or other sources

of heat to refrigerant pipes

! do not bend/hit pipes containing fluids under pressure

2.6 Precautions during maintenance operations

Maintenance operations can be carried out by authorised technicians

only.

Before performing any maintenance operations:

! disconnect the unit from the mains with the external disconnecting

switch

! place a warning sign “do not turn on - maintenance in progress”

on the external disconnecting switch

! make sure that on-off remote controls are inhibited

! wear suitable personal protective equipment (helmet, safety

gloves, goggles and shoes etc.)

To carry out any measurements or checks which require the

activation of the machine:

! work with the electrical board open only for the necessary time

! close the electrical board as soon as the measurement or check

has been completed

! for outdoor units, do not carry out any operations in the presence

of dangerous climatic conditions (rain, snow, mist etc.)

The following precautions must be always adopted:

! do not scatter the fluids of the refrigeration circuit in the

surrounding environment

! when replacing an eprom or electronic cards, use always suitable

devices (extractor, antistatic bracelet, etc.)

! to replace a compressor, the evaporator, the condensing coils or

any other weighty element, make sure that the lifting equipment is

consistent with the weight to be lifted

! in air units with independent compressor compartment, do not

access the fan compartment unless you have disconnected the

machine by the disconnecting switch on the board and you have

placed a warning sign “do not turn on - maintenance in progress”

! contact manufacturer for any modifications to the refrigeration,

hydraulic or wiring diagram of the unit, as well as to its control

logics

! contact manufacturer if it is necessary to perform very difficult

disassembly and assembly operations

! use only original spare parts purchased directly from manufacturer

or the official retailers of the companies on the recommended

spare parts list

! contact manufacturer if it is necessary to handle the unit one year

after its positioning on site or if you wish to dismantle it.