NEW ENERGY NERS-B1.0S-P, Инструкция по установке и эксплуатации

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Maintenance:
1 The motor has been lubricate and sealed in advance before left the factory, therefore lubricate is not needed during maintenance
。
2 Using a stiff nylon brush to clean the evaporator wings. Before scrub, clean it with vacuum cleaner. If there is compressed air, you
can use high pressure air to clean the condenser or evaporator.
3 Periodic inspecting if the air inlet or outlet is stopped up
。
4 Pay close attention to the outlet, inlet/ suction pressure of the system. If there is any abnormity, find out the reason and clearing the
fault.. If you can not determine the reason, get in touch with the technician.
5 Control and protect the equipment, do not adjust the factory setting freely
。
6 Periodic inspecting the electrical connections and regularly monitored the operating voltage, operating current and phase balance.
Timely to check the reliability of the electrical components, replace the expired and unreliable parts timely.
7 Air source heat pump water heater uses patent heat exchanger and the outlet water temperature is high. After long time operation,
the heat transfer surface of the water side heat exchanger will be deposited calcium oxide or any other minerals.
If these minerals fouling too much on the heat transfer surface, it will effect heat transfer performance which could lead to power
consumption increase, compressor outlet pressure too high or inlet pressure too low.
So regular contaminant separation is necessary (Please use formic acid, citric acid, acetic acid and other organic acid to clean, any
cleaning agents contains chloral acid or fluoride is strictly forbidden).
System maintenance:
Whether need to refill the refrigerant depend on the value of inlet/suction pressure. The air tight test should be done in case of leakage
or replacements of the components of the gas/refrigerant circulate system. In accordance with the following two situations when refill
the refrigerant:
:
1 The refrigerant leak completely
If this happens, you must use 30Kgf/cm2r high pressure nitrogen or refrigerant to do leak detection. Before repair welding, the gas
in the system must be drained. Before refill the refrigerant, the system must be thoroughly dried and vacuum.
a
、
Connecting the vacuuming pipe to the refrigerant injection needle valve of low pressure side. Using vacuum pump to vacuumize the
system for more than 15 minutes. Then confirm if the vacuum gauge shows at
－
1.0×105Pa
（－
76cmHg
）
.
b
、
After achieving the required vacuum effect, filling the refrigerant to the system with refrigerant bottle. On the nameplate and main
technical parameters we have marked the suitable refrigerant. Make sure to fill the refrigerant at the low pressure side of the system
c
、
The refilling refrigerant quantity subject to the ambient temperature. If you do not meet the required filling quantity and can not filling
longer, you can turn on the machine, then starting filling continuously from low pressure side, in the meantime must prevent damage
from liquid refrigerant
2 Refill the refrigerant
Connecting the refrigerant filling bottle at the refrigerant injection needle valve of low pressure side and also connecting the pressure
gauge at the low pressure side at the meantime. Then turn on the machine, filling the refrigerant into the system slowly and inspect
the low pressure gauge.
Warning: When doing leakage hunting and air tight test, only high pressure nitrogen and refrigerant is allowed to use, filling oxygen,
acetylene or other flammable or toxic gases is strictly forbidden.
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Ⅶ Maintenance