DAYLIFF SPS-190, Инструкция по установке и эксплуатации

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5. OPERATION & MAINTENANCE
5.1 Routine Maintenance
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Control and protect the equipment.
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Pay close attention to whether all the operation parameters are normal during
system working.
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Regularly examine whether the electrical connection is loose, if not tighten.
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Regularly examine the reliability of electrical components and change failed or
unreliable components.
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There will be calcium oxidized or other mineral substance deposition on the
surface of water heat ex-changer copper coil after long period of operation. This
will impact the heat exchange performance and lead to high electrical
consumption, high discharge pressure drop in air suction pressure and resulting in
lower hot water production. To clean, use formic acid, citric acid, acetic acid or
other organic acid.
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The dirt retention on the surface of evaporator fin may be cleaned using 6bar
compressor blower, brushed by fine copper wire, or flushed by high pressurized
water, usually once per month. If there is too much dirt, a paintbrush dipped
gasoline may used to clean.
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After long downtime, the following should be done before restart examine and
clean the equipment carefully, clean the water pipeline system, examine the water
pump, and fasten all the wire connections.
5.2 Refrigerant Filling
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Examine the refrigerant level from the display screen. Also check the air suction and
exhaust pressure. If there is leakage in the refrigeration circulation system, examin air
tightness and adjust if necessary.
5.3 Leak Detection and Air Tightness Examination
During leak detection and air tightness examination do not fill the refrigeration system
with oxygen, ethane or other flammable harmful gas. Use compressed air, fluoride or
refrigerant for such trials.
5.4 To Remove the Compressor
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Turn off the power supply
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Drain the refrigerant from the low pressure end, paying attention to reduce the
exhaust speed.
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Remove the compressor air suction and exhaust pipe.
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Remove the compressor power cables, fixing screws and eventually the
compressor.
Use genuine replacement parts to ensure proper repairs
NOTE