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General
Perform all maintenance procedures and inspections at
the recommended intervals. This will increase the life of
the chiller and minimize the possibility of costly failures.
Sound power levels
Weekly Maintenance
Discharge
After the unit has been operating for approximately
30 minutes and the system has stabilized, check the
Measurement conditions:
operating conditions and complete the procedures below:
Measurements taken in a room adjacent to the room containing the FWD, at the outlet of the rectangular duct (1.5 m
long) fixed to its discharge opening.
1.
Check on the TD7 pressure for evaporator, condenser,
and intermediate oil.
Fan
2.
Inspect the entire system for unusual conditions and
Unit
speed
1
inspect the condenser coils for dirt and debris. If the
FWD 08
2
coils are dirty, refer to coil cleaning.
3
1
Monthly Maintenance
FWD 10
2
3
1
1.
Perform all weekly maintenance procedures.
FWD 12
2
2.
Record the system subcooling.
3
3.
Record the system superheat.
1
4.
Make any repairs necessary.
FWD 14
2
3
Annual Maintenance
1
FWD 20
2
3
1.
Perform all weekly and monthly procedures
2.
Check the oil sump oil level while the unit is off.
Intake
Note: Routine changing of the oil is not required. Make an
Measurement conditions:
oil analysis to determine the condition of the oil.
Measurements taken at the horizontal air intake.
1.
Have Trane or another qualified laboratory perform
Fan
a compressor oil analysis to determine system
Unit
speed
1
moisture content and acid level. This analysis is a
FWD 08
2
valuable diagnostic tool.
3
2.
Contact a qualified service organization to leak-test
1
the chiller, to check operating and safety controls, and
FWD 10
2
3
to inspect electrical components for deficiencies
1
3.
Inspect all piping components for leakage and
FWD 12
2
damage.
3
1
4.
Clean and repaint any areas that show signs of
FWD 14
2
corrosion.
3
5.
Clean the condenser coils.
1
6.
Clean the air filter located on the door of the control
FWD 20
2
3
panel of AFD only on following unit type:
- RTAF HSE sizes 155 and 175 on circuit 1
- RTAF HSE sizes 190 and 205 on each circuit
7.
Check and tighten all electrical connections as
necessary.
CAUTION! A clear sight glass alone does not mean that
the system is properly charged. Also check the rest of the
system operating conditions.
WARNING! Position all electrical disconnects in the
"Open" position and lock them to prevent injury or death
due to electrical shock.
RLC-SVX19E-GB
UNT-PRC002-GB
Power level in dB(A), per Hz frequency band
125
250
500
55
50
42
57
54
47
58
57
50
57
51
45
58
54
48
60
58
50
57
51
45
58
54
48
60
58
50
56
62
50
61
66
55
63
69
58
57
63
51
61
66
55
63
69
58
Power level in dB(A), per Hz frequency band
125
250
500
56
55
55
63
62
60
66
65
63
62
58
55
66
63
60
70
67
63
62
58
55
66
63
60
70
67
63
66
65
65
73
72
69
78
76
73
68
72
64
76
76
68
78
79
71
Periodic Maintenance
Refrigerant Emission Control
Conservation and emission reduction can be
accomplished by following recommended Trane
operation, maintenance, and service procedures,
with specific attention to the following:
1.
Refrigerant used in any type of air-conditioning or
refrigerating equipment should be recovered and/or
recycled for reuse, reprocessed (reclaimed). Never
release refrigerant into the atmosphere.
2.
Always determine possible recycle or reclaim
requirements of the recovered refrigerant before
beginning recovery by any method.
1000
2000
3.
Use approved containment vessels and safety
37
37
standards. Comply with all applicable transportation
40
30
standards when shipping refrigerant containers.
42
32
42
34
4.
To minimize emissions while recovering refrigerant,
45
38
use recycling equipment. Always attempt to use
48
40
methods that will pull the lowest possible vacuum
42
34
45
38
while recovering and condensing refrigerant into
48
40
containment.
48
39
5.
Refrigerant-system cleanup methods that use filters
53
47
and dryers are preferred. Do not use solvents that
56
50
49
40
have ozone depletion factors. Properly dispose of
53
47
used materials.
56
50
6.
Take extra care to properly maintain all service
equipment that directly supports refrigeration
service work, such as gauges, hoses, vacuum
pumps, and recycling equipment.
7.
Stay aware of unit enhancements, conversion
refrigerants, compatible parts, and manufacturer's
recommendations that will reduce refrigerant
1000
emissions and increase equipment operating
2000
53
46
efficiencies. Follow the manufacturer's specific
60
53
guidelines for conversion of existing system.
62
56
8.
In order to assist in reducing power-generation
58
51
62
56
emissions, always attempt to improve equipment
65
59
performances with improved maintenance and
58
51
operations that will help conserve energy resources.
62
56
65
59
Refrigerant and Oil-charge
65
57
71
64
Management
75
69
64
56
71
65
Proper oil and refrigerant charge is essential for proper
74
69
unit operation, unit performances, and environmental
protection. Only trained and licensed service personnel
should service the chiller.
Some of the symptoms of a refrigerant under-charged
unit:
• Larger-than-normal evaporator approach temperatures
(leaving water temperature – saturated evaporator
temperature). If the refrigerant charge is correct the
approch temperature is between 1°C and 1.5°C on circuit
1 and between 2°C and 2.5°C on circuit 2.These values
are given for units running at full load and with water
without antifreeze
• Low Evaporator-refrigerant temperature limit
• Low Refrigerant-Temperature cutout diagnostic
• Fully-open expansion valve
• Possible whistling sound coming from liquid line
(due to high vapor velocity)
Overall power
4000
8000
dB(A)
31
30
46
38
40
50
40
43
53
33
28
48
39
35
51
42
39
54
33
28
48
39
35
51
42
39
54
38
36
56
46
45
60
50
49
63
39
37
57
46
45
60
50
49
63
Overall power
4000
8000
dB(A)
45
42
57
53
53
64
55
57
67
48
44
61
55
52
66
59
57
69
48
44
61
55
52
66
59
57
69
50
46
68
59
57
74
64
63
78
52
50
69
61
61
75
66
66
78
11
115
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