Replacing A Filter Dryer - Huawei FusionCol8000-E24 User Manual

FusionCol8000-E240 Modular Indirect Evaporative
Cooling System
User Manual
Step 5 On the home screen, choose Running > Device Details > Compressor, and view
Suction pressure and Discharge pressure to determine whether they are within
normal ranges. Choose Running > Device Details > EEV and view EEV suction
superheat degree to determine whether it is within the normal range.
Table 12-3 Proper ranges of discharge pressure
Outdoor
Ambient
Temperature
Below 15°C
15–35°C
35–45°C
Above 45°C
If the suction pressure, discharge pressure, and suction superheat degree are not within the
normal range, check the following items:
1. Refrigerant is charged to the standard amount. (If the refrigerant is overfilled, the discharge
pressure is high. If the refrigerant is underfilled, the suction and discharge pressures are low,
and the suction superheat degree is high.)
2. The air intake and exhaust vents of the unit are not blocked. (If the air intake vent and air
exhaust vent are blocked, the discharge pressure will be high.)
Step 6 After charging refrigerant, close all valves.
Step 7 Tap
Step 8 Tap Shutdown on the home screen.
----End

12.16 Replacing a Filter Dryer

Prerequisites
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Issue 03 (2021-04-20)
Discharge
Pressure Range
1.5–2.5 MPa
1.5–3.1 MPa
2.5–3.8 MPa
3.1–4.15 MPa
NO TE
to exit the diagnostic mode.
A filter dryer needs to be replaced.
A spare welded filter dryer of the same model is available and functional.
Tools: welding equipment, refrigerant retrieval device (configured based on
local conditions), Phillips screwdriver, nitrogen cylinder, refrigerant cylinder,
vacuum pump, pressure gauge, rubber hose, protective gloves
Preparation: Power off the unit and reclaim the refrigerant in the system.
Copyright © Huawei Digital Power Technologies Co., Ltd.
12 Component Replacement
Suction Pressure Suction
Range Superheat
Degree
0.5–1.2 MPa 5–15°C
187