ecoclima CM2-H16/4DR2, Руководство по обслуживанию

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CAUTION!
1. Do not wrap the pipe too tightly, otherwise the insulation effect would be weakened. Additionally, make sure the drain
hose is separated from the pipe.
2. After that, fill the hole on the wall with sealing material to prevent wind and rain coming into the room.
Refrigerant Charging and Trial Running
● Refrigerant Charging
1. The refrigerant has been charged into the outdoor unit before shipment, while
additional refrigerant still need be charged into the refrigerant pipe during the field
installation.
2. Check if the liquid valve and the gas valve of the outdoor unit are closed fully.
3. As shown in the following figure (Fig.5), expel the gas inside the indoor unit and
refrigerant pipe out by the vacuum pump.
4. When the compressor is not running, charge the R32 refrigerant into the
Manometer Manometer
“LO” knob “HI” knob
Hose
refrigerant pipe from the liquid valve of the outdoor unit (do not do it from the
gas valve).
Gas Valve
vacuum pump
Fig.5
● Calculation of the Additional Refrigerant Charging
1. Refrigerant Charge in the Outdoor Unit before Shipment
Table 8
Model Refrigerant Charge (kg)
CM2H-1644A23 1.10
CM3H-2228A23 1.42
Notes:
(1). The refrigerant charge mentioned in the table above is not include those charged additionally in the indoor unit and
the refrigerant pipe.
(2). The amount of the additional refrigerant charge is dependent on the diameter and length of the liquid refrigerant pipe
which is decided by the actual yield installation requirement.
(3). Record the additional refrigerant charge for future maintenance.
2. Calculation of the Additional Refrigerant Charge
If the total refrigerant pipe length (liquid pipe) is smaller than listed in the table below, no additional refrigerant will be
charged.
Table 9
Model Total Liquid Pipe Length (a+b+c)
CM2H-1644A23 ≤ 10m
CM3H-2228A23 ≤ 15m
Additional refrigerant charge= ∑ Extra Liquid Pipe Length×12g/m (liquid pipe Φ 6.35mm)
Notes:
If the total refrigerant pipe length is larger than that listed in the table above, the additional refrigerant for the extra length
of the pipe needs to be charged as per 12g/m.