Huawei NetCol5000-A035 User Manual page 156

NetCol5000-A(025, 035) In-row Air Cooled Smart
Cooling Product
User Manual (600 mm Width)
4.
Context
The crankcase heat tape starts to work when the general circuit breaker QF1 and
main control board power circuit breaker QF8 are on. Ensure that the crankcase
heat tape has been preheated for over 12 hours before starting the compressor.
Otherwise, the compressor will be damaged. Huawei will not be liable for any
consequences.
Procedure
Step 1 Switch on fan circuit breaker QF6, electric heater circuit breaker QF4, humidifier
circuit breaker QF5, condensate pump circuit breaker QF9, outdoor unit general
circuit breaker, and compressor circuit breaker QF3 in turn.
Step 2 Tap Start on the main screen, and then choose Maint > Diagnostic Mode > Enter
to enter the diagnostic mode.
Step 3 Start the electric heater on the diagnostic mode page. Check that:
Do not touch the electric heater surface directly to avoid empyrosis.
1.
2.
Step 4 Close the electric heater on the diagnostic mode page. Adjust the compressor
rotation speed to 3000 rpm and adjust the humidifier input to 50%.
Step 5 Adjust the compressor.
1.
2.
Issue 17 (2020-10-22)
or Engineer. Tape Settings > User Settings to change the passwords for
security after you first entering the system.
If the actual server total load, relative to a single smart cooling product, is
less than 10 kW, the humidity might be relatively high. You are recommended
to install a dehumidifier.
CA UTION
CA UTION
The indoor fan rotates smoothly.
The electric heater generates heat.
Open valve 3 shown in
and charge refrigerant only from the low-pressure needle valve. Ensure that
the refrigerant is charged in small amount or charged discontinuously. The
total charging amount must meet the calculation requirements in
Calculation about the Charged the Refrigerant and Refrigerant
On the main screen, tap Run > Device Details > Compressor to read the
suction and discharge pressure. Check whether the suction and discharge
pressure of the compressor are within reasonable ranges. (Normal suction
pressure range: 0.7–1.2 MPa; normal discharge pressure range: listed in
5-3.)
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Figure 5-2 (or valves 4 and 6 shown in
5 Power-On Commissioning
Figure 5-3)
5.2.1
Oil.
Table
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