Daikin Magnitude WME Series User Manual

IOM 1266-2 • MAGNITUDE
®
MODEL WME CHILLERS 56 www.DaikinApplied.com
sTarTup and MaInTenanCe
Maintenance Schedule
Table 34 provides an overview of recommended maintenance procedures along with how frequently these procedures should be
performed.
Table 34: Recommended Maintenance Schedule
Monthly
Quarterly
Semi-
Annually Annually
As Required
By
Performance
During
Seasonal
Shutdown
During
Seasonal
Startup
I. Compressor
A. Analyze Compressor Fault Log X
B. Check IGV operation X
C. Check and tighten compressor electrical connections X
II. MicroTech
®
Controls
A. Check for proper settings X
B. Verify transducers and sensors for accuracy X
C. Retrieve and archive HMI Trend Logs O
D. Perform MicroTech
®
check, log, and last fault analysis X
III. Condenser
A. Conrm correct water ow and pressure drop O X
B. Conrm appropriate water treatment O
C. Clean and Leak Test condenser tubes X X X
D. Eddy Current Test - tube wall thickness X
E. Seasonal Protection X
F. Clean Flow Sensor X X
IV. Evaporator
A. Conrm correct water ow and pressure drop O X
B. Conrm appropriate water treatment O
C. Clean and Leak Test evaporator tubes X
D. Eddy Current Test - tube wall thickness X
E. Seasonal Protection X
F. Clean Flow Sensor X
V. Chiller Unit
A. Run Test/Performance Evaluation X
B. Leak Test entire unit X X X
C. General Appearance:
1. Paint/Corrosion X
2. Insulation X
VI. Electrical
A. Check and record line voltage X
B. Inspect power components for signs of overheating X
C. Check and tighten unit electrical components X X
D. Check all panels for cleanliness - remove dust and debris
from electrical boards and connections
X
Key: O = Performed by owner personnel X = Performed by qualied service personnel
Harmonic Filter Evaluation
If the optional harmonic lter is provided with the chiller,
measuring the current in each of the three phases of the
capacitor circuit may help determine the condition of the
capacitors. If the input phase currents are within a 5% match to
each other and approximately 30% of lter current rating, the
capacitors can be assumed to be in good working condition.
Phase currents that are imbalanced, may indicate a capacitor
failure. Testing should be done whenever the unit appears to
be operating in an abnormal state.
When the unit is off, the harmonic lter may be checked for
resistance levels. Using a multi-meter (set to read 100K ohms)
to check the phase-to-phase isolation, the reading should
be about 40K (total equivalent bleeder resistance value) and
should be the same for each phase. Open circuit or very
low readings indicate an issue. Also check phase-to-chassis
resistance as low readings indicate a ground fault problem.

Daikin Magnitude WME Series Specifications

General

Brand	Daikin
Model	Magnitude WME Series
Category	Chiller
Language	English