26
4
Common Maintenance Operations
4.1
Coolant Filling and Drainage Operations
4.1.1 Coolant Replacement Intervals
Object
Standard
Period
Tools
Coolant
1. There are obvious
impurities in
antifreeze. 2.
Antifreeze turns from
pink to dark red. 3.
Coolant PH value
less than 7.3.
5~6 years
Water pump, hose, hose
clamp, slotted screwdriver.
Note: Please contact
Sungrow Customer Service
to replace hardware
facilities.
Coolant PH Value Test
step 1 Power down the system: Open the door of the power distribution cabinet in the BSP cabinet,
and turn off the system circuit breaker (flick the lever down).
step 2 Open the door of the chiller.
step 3 Remove the plug of the drain port of the chiller pipeline.
step 4 Slightly loosen the valve (not fully open) and release the coolant of about 10ml.
Содержание ST2752UX
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