GREE Air-ccoled Closed Control Unit Service Manual
has bad electric conductivity.
(6) Do not use hot water, which will produce encrustation and cause blockage to nozzle of
the water inlet valve.
(7) For the normal running and lengthening life span of humidifier, the water with high
electric conductivity (above 700MΩ) has to be preprocessed.
6.4.5 Vacuumization and Refrigerant Filling
(1) Refrigerants have been charged in the outdoor and indoor units before outgoing.
Whether extended pipes for installation should be charged with refrigerants and how much
refrigerants are needed, which are decided by the length of refrigerant pipes.
(2) Make sure that the liquid valve and air valve are shut down.
(3) Pump the air inside of connecting pipes from the air valve and the liquid valve of indoor
units, which is as shown in the following figure.
(4) Make sure that there is no leakage. When the compressor has stopped, the required
amount of R22 refrigerants should be added into the valves of the indoor. If refrigerants cannot
be added into required amount quickly due to the increased pressure in the pipe, keep the unit
ON, and charge refrigerants into the fluorine-feeding nozzle in the inhalation tube of the indoor
unit.
6.4.6 Installation of Drain Pipe
In order to drain easily, the outlet of drain pipes should be lower than the base surface of
the unit at least 200mm.
The water drained out from the humidifier is non-poisonous and non-corrosive, which can
be drained out directly. In order to prevent leakage of electricity, the beginning connection of
drain pipe should be rubber or other non-conducting plastic pipes provided by our company.
Only preparing metal pipes or plastic tubes for hot water would be enough for installation.
ТОО "Everest climate", Р. К., г.Алматы | Телефон: +7 727 230 00 10, +7 777 250 10 90 | www.aircon.kz, e-mail: info@aircon.kz
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