R22 refill on air conditioning system / Refrigerant system gas recharge
Charging the gas onto air-conditioners or refrigerator is another service that we offer to all public. This is a very important factor to keep your ventilation system maintained properly if the units run out of gas it won’t be functioning as good as it should be so if you start to see any sign of your unit not functioning properly you’d better get in touch with a company like us who can help save you from having headache as you don’t want to end up having a breakdown especially during summer months when the temperature can get very high.
Procedures for Recharging Air Conditioning Systems with Refrigerant
Refrigerant charging might be the least understood practice in the air conditioning industry next to setting airflow. Although there are several methods, typically there is only one correct method for the type of unit you are working on. Information contained here is for formally trained EPA Section 608 certified technicians.
Start with the basics for all systems:
1. Makes sure the system been properly installed and evacuated. A proper evacuation is critical to proper performance. Need help with this process go HERE!
2. Clean the filters and the coils. You cannot charge or check the charge on a system with dirty coils, filters, or blower. The condenser and the evaporator must be clean. The blower must be capable of moving the correct amount of air. Visual inspection of the evaporator can be aided with the use of a video scope by removing the high limit of most furnaces and fishing the shaft up through the heat exchanger to the bottom side of the coil.
3. Set the required airflow. You cannot charge a system without correct airflow. After the system is confirmed clean, the airflow must be set to the manufactures recommended settings. Typically this is 400 CFM/Ton +/- 10% Need additional help with airflow go HERE!
4. Identify the type of metering device. You need to know what type of metering device the system has as this may determine how the system will be charged.
5. Before installing your gauges, vent the hoses and the manifold with virgin refrigerant (The same type as the system.) to avoid the introduction of air into the system.
6. Blends like R410a or 404a must be added to a system as a liquid. Pure refrigerants like R22 can be added in liquid or vapor states. If adding liquid into the suction like, throttle it in slowly to avoid slugging the compressor or diluting and washing out the compressor oil.
7. After the charge has been set, avoid installing the gauges as part of regular service. The system should be sealed. Keep it that way.
Air-Conditioning & Ventilation Services are one of trade's fields we can assist you with. With professionalism and customer focused mind we have, we are very confident you will be more that satisfied with the quality of work.
Air-conditioning & Ventilation Services we offer :
- Air-conditioning engineer
- Air-con ventilation installation
- Air-con repair
- Commercial air-conditioning
- Commercial & Domestic Fridges
- Coolers
- Refrigerators
Air-conditioning & Ventilation repair
Air-conditioning & Ventilation Services provides various types of Air-conditioning repair & Refrigeration & Ventilation, air conditioning installation, air conditioning servicing so that means whatever your problem is you have you can sit back and relax and let us deal with it because you know you are in very good hand.
Air-Conditioning repairs - Our air con specialists can deal with any ventilation appliances. You could be a customer who owns commercial buildings, offices where you need to get somebody to fix urgently in summer time or you could be the owner of residential (industrial) houses with air conditioning unit or portable air-con.
