Lennox eCOMFORT R32 GAC 035S, Инструкция по установке, эксплуатации и обслуживанию

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Installation manual / eCOMFORT R32-MIL166E-0222 - 09/2022
N°
MAINTENANCE PLAN
Monthly + Quarterly Half Y
early
Task Operating mode
Check water flow.
Measure the water flow rate and compare to the selected value from
the technical datasheet.
Inspection and cleanning the water
filter.
ATTENTION: The water circuit can be under pressure. Follow the
usual precautions when depressurizing the circuit before opening.
Ignoring this rules can lead to accidents and cause injury to the
personal.
Check for water leakage in the unit
and it’s accessories.
Verify the gaskets, if cracked or ripped, repair them or replace them.
Check for water leaks and repair if it’s needed.
Check CLIMATIC™ control, set-points
and variables.
Refer to the commissioning sheet; Check all set points are set ac-
cording to this document.
Check refrigeration system for proper
functioning (Thermal expansion valve).
Retrieve/Check the values for superheating and sub cooling. Resume
the expansion valve settings when needed, verify the behavior in
partial loads and at 100%. Resume settings to obtain superheat be-
tween 5K and 10K.
Check refrigeration system for proper
functioning (Electronic expansion
valve).
Retrieve/Check the values of the pressure and temperature sensors.
Check also for the good behavior of the expansion valve (Open/
closed) in full load and partial load conditions. The superheat must be
between 5K an 8K.
Check the position and tightnessof
refrigeration components.
Check systematically all connections and fixings on the refrigeration
circuit. Check for oil traces, eventually a leak test should be con-
ducted. Check operating pressures correspond to the ones indicated
on the commissioning sheet.
SIGHT GLASS (when applicable).
The liquid refrigerant flow through the sight glass should be steady
and without bubbles. Bubbles are a sign of a low charge, a possible
leak, or of a restriction in the liquid line. Each sight glass is fitted
with a humidity indicator. The color of the element changes accord-
ing to the level of humidity in the refrigerant, but also according to
temperature. It should indicate «dry refrigerant. If it shows «wet» or
«CAUTION», contact a qualified refrigeration technician.
CAUTION: when starting up the unit, run the compressor for at least
2 hours before taking a humidity reading. The humidity detector is
also sensitive to temperature, and as a consequence, the system
must be at normal operating temperature to give a meaningful read-
ing.
Check antifreeze protection. Test antifreeze function (leakage rate, frost protection thermostat)
Check refrigeration 3-way valve. Check the proper functionning of the system.
Check tightness of all electrical
connections.
Power down the unit and check and tighten all the screws, terminal
and electric connections (including the terminal boxes)When turning
on the unit, check for the deterioration of the electrical components
with a thermal camera while the unit is working at 100% of it’s power.
Check HP / LP safety switches.
Install a pressure gauge high / low pressure and check if the safety
switches for its overall working.