Daikin FTXTA30AW, Руководство по обслуживанию

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ESIE17-19C | Part 4. Maintenance 4.2. Outdoor unit
Page 100 19/08/19 | Version 1.1
Optimized Heating 4
4.2. Outdoor unit
4.2.1. General maintenance outdoor unit
1. Outdoor unit coil
- Straighten hair fins.
- Clear coil from dust, leaves, etc. with a fin-comb, or compressed air/N2. Avoid bending or damaging of the Alu fins during
the cleaning process.
- Remove the icicles during winter season. Use gloves to avoid injury and unit damage.
2. Correlation of air-conditioner's operation status, pressure and running current.
* Water in the refrigerant freezes inside the electronic expansion valve and is basically the same phenomenon as pump down.
** Dirt in the refrigerant clogs filters inside the piping and is basically the same phenomenon as pump down.
*** Pressure differential between high and low pressure becomes low.
C
AUTION
Make sure not to bend the hair fins.
COOLING Low pressure High pressure Running current
Dirty air filter Higher Higher Higher
Short circuit of air inlet/outlet Higher Higher Higher
Air mixed in refrigerant Higher Higher Higher
Water mixed in refrigerant Lower* Lower Lower
Dirt mixed in refrigerant Lower** Lower Lower
Refrigerant shortage (gas) Lower*** Lower Lower