Split system (Single phase and 3-phase type)
92
Maintenance
Document
1544-1
5 Annual Maintenance Services
5.1 Hydraulic
Circuit
clean filter (if any)
inspect heating system (system pressure,
purging, leak test)
inspect expansion vessel (preload with nitrogen
at 1 bar)
fix any leaks
5.2 Outdoor
unit
clean heat exchanger
clean refrigeration and ventilation compartment
check for correct condensation drain
conduct refrigeration circuit leak test (required if
charged > 2 kg)
5.3 Electrical
Inspect connections and tighten where
appropriate
Check condition of wires and boards
5.4 Operating
checks
conduct refrigeration readings at temperatures
in case of malfunction, install pressure gauges
for refrigeration diagnosis
check voltage, current and control
Summary of Contents for Waterstage WO G112LCT Series
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