General maintenance in order to prevent ice blocking all want to add some methanol, what need to add, please?When to add?How to add?|FAQ|Starget Supply:admin@stargetchem.com

中文版 Send inquiry now skype email Website map add to favourites WELCOME TO STARGET GROUP

Global Chemicals. Since 1990.One Starget, Many Solutions.

Order Hotline: 0086-10-84340783
Starget has passed the verification ofISO14001 environmental management system.
Current location: HomeNews Center » News Center » FAQ » General maintenance in order to prevent ice blocking all want to add some methanol, what need to add, please?When to add?How to add?

Recommended Products

Refrigerant R407c
Refrigerant R407c
R407C is a mixture of hydrofluorocarbons used as a refrigerant. It is a zeotropic blend of R-32, R-125, and R-134a (20/40/40). Applications include residential and commercial air conditioning systems, non-flooded evaporator chillers, and some commercial refrigeration systems. Since R-407C has similar properties to R-22, it is possible (with modifications) to use it in the same equipment designed for R-22 today.
Refrigerant R404a
Refrigerant R404a
R404A is formulated to closely match the properties of Refrigerant R502, making it useful for a variety of medium and low temperature refrigeration applications.Refrigerant R404A has been approved by many refrigeration compressor and system manufacturers for use in new refrigeration equipment such as food display and storage cases, cold storage rooms, ice machines, transportation, and process refrigeration.
Refrigerant R22
Refrigerant R22
Chlorodifluoromethane (HCFC-22), a colorless gas at room temperature, is a colorless, non - toxic, non-flammable and transparent liquid under the pressure created by itself. It has excellent thermal and chemical stabilities and no corrosivity to metals. Its main applications include refrigerant(-80℃grade), raw material for PTFE production and intermediate for Halon 1211 production.
Refrigerant R410A
Refrigerant R410A
R410A refrigerant is used in new residential and commercial air conditioning systems, heat pumps, dehumidifiers and small chillers. R-410A is also being considered in some medium temperature refrigeration applications.
Refrigerant R507
Refrigerant R507
As the long-term substitute for R502, R507 used mainly in the low temperature refrigeranting systems.
Refrigerant R406a
Refrigerant R406a
R-406A is a mixture of three components chlorodifluoromethane (R-22), isobutane (R-600a) and chlorodifluoroethane (R-142b) in the ratio 55/4/41. R406A was designed as a replacement for R-12, which is compatible with the typical mineral oil lubricants used in R-12 systems. It has a range of boiling points which may increase the effectiveness of the heat transfer elements in refrigeration equipment. As it contains R-22, its future is limited due to eventual phase-out.
4-valve digital manifold
4-valve digital manifold
1.Pressure and vacuum gauge shift function. 2.Build-in 82 refrigerants according to U.S.A.NIST standarcl refrigerants pressure and temperature relationship database. 3.Real-time vacuum pressure test and percent indicate. 4.Low power indicate.Batteries life:30H.9V.
Refrigerant R134a
Refrigerant R134a
HFC-134a is used as refrigerant in automobile air-conditioning, household and commercial refrigerant applications. It can also be used as aerosol, flame retardan, and blowing agent in pharmaceutical, agro-chemical, cosmetics and cleaning sectors.

Top articles

Latest articles

Your browsing history

Loading...

General maintenance in order to prevent ice blocking all want to add some methanol, what need to add, please?When to add?How to add?

Categories: FAQStars: 3Stars Visit: - Release time: 2014-04-09 20:10:00
Font size:【 Large Middle Small Source: Editor: Author:

Fix refrigerator is strictly not allowed to add methanol, it can prevent the ice blocking, but harmful to the compressor and pipeline system, as long as you pay attention to in maintenance and operation is generally not ice wall, blocked no way is really add a little bit of methanol, as the beverage bottle cap 1-2 cover,Can't add much. Generally speaking, the vacuum, when after add up to make refrigerator system into a small amount of refrigerant to work for a few minutes and then half an hour of pumping air into vacuum state,After being smoked finish formal refrigerant injection.

Ice wall after a day or two it should be plugged in maintenance, if capillary frozen added also useless, methanol is usually in advance to prevent freezing, methanol is not pure, with water, after joining the fridge or blocked.Now the filter inside quality of molecular sieve as before, and quantity, perfunctory.

Nitrogen is the best way to break into the 0.8 MPA, the casing with 100 w bulb heating evaporator, with hair dryer, condenser with a neutral flame of compressor even heat 3 minutes (water in oil is bad treatment or replace the oil pressure) and then quickly put within the refrigeration system of nitrogen gas.High and low pressure with nitrogen gas blowing, open big filter drier, put on the new color silica gel on the system, the process of pumping air into vacuum state, finally add a little refrigerant, and then put on the new filter drier.Or negative pressure let stand for a few hours or longer, let the water gasification, vacuum for 1 hour again, add refrigerant of commissioning, in dry filters, not after a few times more in capillary.