• 48 • Installation - Operation - Maintenance manual (IOM) • AIR COOLED CHILLERS & SPLIT UNITS - 0105-E
CHECK LIST
This check list should be filled in by the contractor to make sure that unit installation takes place according
to appropriate industry practices.
WARNING : Disconnect the power supply before carrying out any inspections on the unit. If the unit must be
left powered up, proceed with precaution to avoid risk of electrocution.
Note : some units have a separate control circuit supply that is not isolated when the main power supply is OFF.
This must be isolated separately.
RECEPTION
" Check absence of transport damage
" Check for missing items
" Availability of suitable lifting gear, slings and spacers
UNIT PLACEMENT
" Shipping crate removed
" Clearances checked
" Vibration isolators mounted
" Unit set in place
" Unit levelled
CHILLED WATER CIRCUIT
" All piping checked for leakage
" Thermometers installed
" Water pressure regulator installed
" Balancing valves installed
" Flow switch installed
" System rinsed, cleand and filled before being connected to the unit. Checked presence of filter on unit inlet and
state of cleanliness of the filter.
" Checked operation of the pump and evaporator pressure drop
CONDENSER WATER CIRCUIT
" Checked order of power supply phases for scroll and screw compressor units
" All piping checked for leakage
" Thermometers installed
" Water pressure regulator installed
" System balancing valves installed
" System rinsed, cleand and filled before being connected to the unit. Checked presence of filter on unit inlet and
state of cleanliness of the filter.
" Checked operation of the pump and condenser pressure drop
ELECTRICAL EQUIPMENT
" Check the main power supply matches the unit data plate.
" Check that the unit is correctly earthed
" Checked order of power supply phases for scroll and screw compressor units
" Checked correct direction of rotation of fan motors and proper operation of the latter.
" Direction of rotation of pump correct
" Control cabinet wired up.
" Power supply conforms with unit nameplate indications
" Pump starter and flow switch circuits complete and in working order
" Pipe heaters installed on all piping exposed to freezing temperatures
" All unions tightenend with a torque wrench
GENERAL
" Cooling load available, minimum 50 %
" Coordination between different professions for final commissioning
CUSTOMER ORDER NUMBER : . . . . . . . . . . . . . . . . . . . . . LENNOX REFERENCE:. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DESIGNATION : . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COMMENTS : . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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NAME : . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SIGNATURE :