Below are the six methods to descale as shown:
1 Scale inhibitor: it cannot ensure body health, and need special tools, so we do not advice.
2 Acid fluid wash: need to brush when heat pump working, damage to inner tank and pipes, not advice.
3 Softened water: reliable and good performance, but need special tools with timing salt, high maintenance cost, not available.
4 High frequency electricity: Complex installation, high cost, normal consumers will not accept.
5 GNM: Fixed frequency and strength, very low feasibility.
6 Electronic induction: Easy installation, no need maintenance, low power consumption, perfect solution. But also no promotion till now.
Maybe you will ask which one is better?
The above methods are not good, as there is dirty discharge port under water tank, you can use cold water to wash each three month or half an year, including heat exchanger and inner tank. However, if good quality water tank, the heat pump can be kept in good condition even be used for 8 years.
2. How to Reduce Heat Pump Noise?
The normal highest for heat pump is 50 to 60dB(A), but some intel-brand can make that to 43dB(A). Generally it is acceptable within 60dB(A), which is similar to indoor talking.
So we can reduce noise from two aspects:
1, Compressor shake: Normal compressor will rub with floor, or will impact with tubes and cases.
2, Fans: As the unscientific installation of the heat pump, it will case shrill voice.
We suggest below items:
1, Floor installation: If floor, better use some rubber to release shake and keep horizontal.
2, Balcony installation: We suggest a 45 degree diagonal bracing, to depart the press from vertical and horizontal.
3, Indoor window installation: Most time, heat pump is mounted beside the indoor window, we suggest keeping heat pump flown direction is perpendicular to wall, and parallel to indoor wall, by this installation, it can release the noise from wind flow.
3. Should we need to replace the magnesium rods?
315 survey found that a critical detail usually ignored by most customers---we need to replace the magnesium rods immediately. Recently, there are many electric water heater accident happened because the magnesium rods didn’t be replaced in time and cause large economic loss.
The experts said, the magnesium rods have the advantages of separating the thermonatrite, protecting the inner tank corrosion from the scale, so they usually are used in the electric water heaters. But most magnesium rods just have 2-3 working life, if exhausted, the scale begin to corrode the inner tank and the big dangerous will exist in the electric water heaters.
4. How to solve the problem of corrosion of heat pump water heaters?
The corrosion of heat pump water heaters is a common phenomenon which has puzzled most users. Then how to solve this problem?
Firstly, you should check if there is chloridion or sulfion in the water? The moss in the water source maybe tell you. Secondly, check whether there is uneven welding (which will easily cause corrosion) in the joint. If so, apply Diamond silicon on the welding to prevent corrosion.
5. How to solve the problem occurring water flow fault when unit is running?
You can solve the problem according to such points:
1) Check whether the filter is blocked;
2) Check whether the water flow rate is higher than the rated rate;
3) Check whether the water flow switch is broken down;
4) Check whether the controller input is broken down.