Panasonic OCU-R200SF, Руководство по обслуживанию

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The filter dryer in this unit will react with water and air, so please carefully observe following instructions.
Never install this unit into a refrigeration system which is using different type refrigerant or oil. ( Only use this unit in a
new system in case of the cleanliness, impurities and oil) .
System
Components
Installation ：
1.Do the construction work of refrigerator connections at the end of piping work.
3. Conduct the air-tight test. Use the specified leakage detector for designated refrigerant.
(Halogen Leak Detector has less sensitivity for R404A).
The crankcase heater is recommended be used to prevent refrigerant migration and oil dilution in compressor.
1. Install the unit in a place where no corrosion gas(nitrogen oxide:NOx etc.) or salt air.
2.Use the concrete foundation with the weight about 3 times the weight of the unit. The tilt of unit should be less than 3°.
3. The antivibration pads should be installed between the unit and foundation if the vibration may transfer to the building.
4. For cold room application, or the ambient temperature of unit lower than room temperature
：
A
．
The refrigerant flood back may happen due to the continued operation of evaporator fan motor after defrosting.
1 ～ 2 分钟。 A timer should be installed to set the operation time of fan motor within 1~2 minutes.
B
． Apply the pump down cycle to avoid refrigerant migration in long period stopping.
5.Please install the filter dryer and sight glass horizontally behind liquid line service valve when connect the pipes
to ensure the operation safety and stability of the unit.
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Installation of Unit
Tips on the Effective Use of the Unit
Use in Cold Weather Regions
Use with Specified Refrigerant
2.The refrigerant connection should be assembled within 30 minutes and then the airtight test should be done.
In cold weather regions (where daytime temperatures plunge to some degrees below zero), if the ambient temperature of the Refrigerator
(temperature inside) becomes higher than the ambient temperature of the unit, the use of pump down cycle during the defrosting process is advisable
to prevent refrigerant
If the ambient temperature of the unit becomes less than -5°C, take measures to prevent the fast fall of high pressure, for example by enclosing the
unit with some materials.
1.Use the specific expansion valve for designated refrigerant.
2. Dry the components thoroughly after cleaning process.
3.Use clean deoxidized copper pipes for piping and phosphor copper filler as a brazing material. "In case of
the use of silver solder, do not use flux containing chlorine."
4.Use hub oil seal for pipe joints (pipe for a refrigerant).
5. Suction filter is recommended to prevent metal pieces entering into compressor.
Filter Dryer
Sight Glass
Flow direction of
refrigerant