Panasonic OCU-R200SF, Руководство по обслуживанию

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Following tips are the recommendations for the economical use of the condensing unit, for your reference.
Cooling capacity greatly varies depending on application conditions.
1.Minimize the pressure drop in piping while ensure the oil return rate.
Reference: Rates of capacity change per pressure loss by 1°C (in suction pipe)
Evaporating temp (°C)
Reference: Rates of capacity change per pressure loss by 1°C (in discharge pipe)
2.Increase evaporating temperatures by selecting a evaporator with sufficient capacity.
3.Do not block with food, etc. the cool air outlet and inlet of the refrigerator (freezer) or showcase.
4.Open and close the door of the refrigerator (freezer) as quick as possible (do not keep the door open unnecessarily to prevent cool air from running away)
5.Keep the condenser clean by doing the cleaning periodically to prevent clogging.
Reference: Rates of capacity change per change in air inlet temperature of condenser by 1°C
Evaporating temp (°C)
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Tips on the Effective Use of the Unit
For Economical Use
Compressor sump temperature analysis
After the compressor runs smoothly, please make sure that the operation condition of compressor is not in the liquid return area
according to the following table. If the liquid returned is too much, please adjust the expansion valve.
Cooling capacity decreases by 3 to 6% as evaporating temperature (temperature-conversion value of the pressure measured at the entrance to unit) drops by
1°C. As condensing temperature rises by 5°C, of the pressure measured at the entrance to unit) drops by 1°C. As condensing temperature rises by 5°C,
cooling capacity decreases by about 9 to 18%, with the increase of power consumption.
Rates of capacity change per
1°C
-5 ～ -20 2 ～ 3 ％
-20 and below 3 ～ 4 ％
Evaporating
temperatures (°C)
Rates of capacity change per
1°C
-5
～
-20 2
～
3
％
-20 and below 3
～
4
％
To optimize the performance of condensing unit, it is important to increase suction pressure and decrease discharge
pressure as much as possible.
Rates of capacity change per
1°C
-5 ～ -20 3 ～ 4 ％
-20 and below 4 ～ 6 ％
Safe Area
Unsafe Area
Evaporating Temp.
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il
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