The cooling water temperature is too high and the condensation effect is poor. The rated operating temperature of the cooling water required for cabinet air conditioning is 30-35 ℃. High water temperature and poor heat dissipation will inevitably lead to high condensation pressure, which often occurs during high temperature periods.
The cooling water flow rate is insufficient and cannot reach the rated water flow rate. The primary manifestation is a decrease in the pressure difference between the inlet and outlet of the unit (compared to the pressure difference at the beginning of system operation), and an increase in temperature difference. The reason for the lack of water flow is due to a lack of water or air in the system. The solution is to install an exhaust valve at a high point in the pipeline for exhaust; The condenser is scaled or blocked. Condensed water is generally made from tap water, which easily forms scale at temperatures above 30 ℃. Moreover, because the cooling tower is open and directly exposed to the air, dust and foreign objects can easily enter the cooling water system, causing blockages in the condenser.
Excessive refrigerant charging. This situation usually occurs after repair, manifested as high suction and discharge pressure, high equilibrium pressure, and high working current of the compressor. The air should be released according to the suction and exhaust pressure, equilibrium pressure, and working current under rated operating conditions until normal. The refrigerant contains non condensable gases such as air and nitrogen. This situation usually occurs when the vacuum is not completely evacuated after repair. It can only be drained, vacuumed from the beginning, and filled with refrigerant from the beginning. False alarms caused by electrical problems. Due to moisture, poor contact or damage of high-voltage protection relays, moisture or damage of unit electronic boards, and communication problems causing false alarms.
'Quality stability and customer first' has always been our business philosophy and principle. We have gained customers' honest cooperation and trust with our excellent product quality and comprehensive pre-sales, in sales, and after-sales services. Customer satisfaction is always our pursuit goal. We will continue to work hard and strive for self-improvement to create a good service system for our customers, and sincerely invite friends from all walks of life in the business world to give us more suggestions.
