Aqua Tempo Power Series (with LAK) air cooled scroll chiller unit (50Hz) MCAC-ATSM-2013-11
128
Regularly preventive maintenance plan
Maintenance Items
Frequency
Qualify Standards (Settlement)
Note
General
Noise
Anytime
Judge whether there is abnormal sound by
hearing;
Watch from one meter
away from the center of
the unit;
Vibration
Anytime
Watch whether the swings of distribution pipes
and components are too large
Voltage
Anytime
Rating voltage is within ±10%
Appearance
Clean
Anytime
Keep it clean anytime
Calm
Anytime
Lock each snail
Insulation
material flakes
Anytime
Stick it
Water leak
Once/ Month
Check whether the exhaust water pipe blocks
Compressor
Noise
Anytime
Whether there is abnormal sound when starts
up, runs or stops
Insulation
resistance
Once/ Year
Above 5MΩ is required when testing with
DV500V high resistance meter
Hock proof rubber
gets old
Once/ Year
Flexible when pressed with hands is qualified
Medium check
Once/3000
hours
Pay attention to the noise libation and oil level
Medium check
Once/6000
hours
Confirm the action of safety device and
protection device
Fin-coil heat
exchanger
Fan
Anytime
Normal wind amount, high pressure when
refrigerating and low pressure when heating
within the normal range
Clean frequency
Once/Month
Normal wind amount, high pressure when
refrigerating and low pressure when heating
within the normal range
Shell land tube
heat exchanger
Water flow of the
user side
Anytime
Within ±5% of the standard
Temperature
Anytime
Within the standard
Antifreeze
concentration
Once/Month
Make sure it is set above the concentration
Refer to the physical
characteristics of
cold-resistance liquid
Water quality
Once/Month
Within the standard
Refer to water quality
furring relations
drawing
Purity
Anytime
The low pressure is within the standard when
refrigerating
The high pressure is within the standard when
heating
Drainage
Anytime
Drain all the water if it is not used for a long time
Drain water in the
distribution pipe
High and low
pressure switch
Action
Once/Month
Check according to “Protection Devices Action ‘
Whether
the
match
point is good
Pressure
Gauge
Finger
Once/ Half of
a year
Compare with correct pressure gauge
Globe valve
Action
Once/Month
Smooth action on globe valve switch
Refrigeration
circle
Refrigeration
media leak
Once/Month
Check whether there is refrigeration media
leakage inside the unit or at the distribution pipe
connecting points. Let out all the water inside
the shell-and-tube heat exchanger, and check
whether there is any leakage at the water inlet
or outlet.
Use the electronic leak
detector, or blowtorch
leak detector, or soap
water.
Electrical
machine control
Insulation
resistance
Once/Month
Above 1
MΩ is required when testing with
DV500V high resistance meter.
Wire contact
Once/Month
Insulation layer of the wire must be under good
contact condition, without damage, bolt well
fixed.
Assistant relay
Once/Month
No abnormal action
Time-limited relay
Once/Month
Act according to the time set
Summary of Contents for Aqua Tempo Super Series
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