RLC-SVX023A
39
11
UNT-PRC002-GB
Sound power levels
Discharge
Measurement conditions:
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.
Fan
Power level in dB(A), per Hz frequency band
Overall power
Unit
speed
125
250
500
1000
2000
4000
8000
dB(A)
1
55
50
42
37
37
31
30
46
FWD 08
2
57
54
47
40
30
38
40
50
3
58
57
50
42
32
40
43
53
1
57
51
45
42
34
33
28
48
FWD 10
2
58
54
48
45
38
39
35
51
3
60
58
50
48
40
42
39
54
1
57
51
45
42
34
33
28
48
FWD 12
2
58
54
48
45
38
39
35
51
3
60
58
50
48
40
42
39
54
1
56
62
50
48
39
38
36
56
FWD 14
2
61
66
55
53
47
46
45
60
3
63
69
58
56
50
50
49
63
1
57
63
51
49
40
39
37
57
FWD 20
2
61
66
55
53
47
46
45
60
3
63
69
58
56
50
50
49
63
Intake
Measurement conditions:
Measurements taken at the horizontal air intake.
Fan
Power level in dB(A), per Hz frequency band
Overall power
Unit
speed
125
250
500
1000
2000
4000
8000
dB(A)
1
56
55
55
53
46
45
42
57
FWD 08
2
63
62
60
60
53
53
53
64
3
66
65
63
62
56
55
57
67
1
62
58
55
58
51
48
44
61
FWD 10
2
66
63
60
62
56
55
52
66
3
70
67
63
65
59
59
57
69
1
62
58
55
58
51
48
44
61
FWD 12
2
66
63
60
62
56
55
52
66
3
70
67
63
65
59
59
57
69
1
66
65
65
65
57
50
46
68
FWD 14
2
73
72
69
71
64
59
57
74
3
78
76
73
75
69
64
63
78
1
68
72
64
64
56
52
50
69
FWD 20
2
76
76
68
71
65
61
61
75
3
78
79
71
74
69
66
66
78
Annual Maintenance
WARNING: Hazardous Voltage!
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout
/ tagout procedures to ensure the power can not be
inadvertently energized. Failure to disconnect power
before servicing could result in death or serious injury.
• Shut down the chiller once each year to check the
following:
• Perform all weekly and monthly maintenance
procedures.
• Check the refrigerant charge and oil level. Refer to
“Maintenance Procedures “. Routine oil changing is not
necessary on a hermetic system.
• Have a qualified laboratory perform an oil analysis to
determine system moisture content and acid level.
IMPORTANT NOTE:
Due to the hygroscopic properties
of the POE oil, all oil must be stored in metal containers.
The oil will absorb water if stored in a plastic container.
• Check the pressure drop across the oil filter. Refer to
“Maintenance Procedures “.
• Contact a qualified service organization to leak check
the chiller, to inspect safety controls, and inspect
electrical components for deficiencies.
• Inspect all piping components for leakage and/or
damage. Clean out any inline strainers.
• Clean and repaint any areas that show signs of
corrosion.
• Test vent piping of all relief valves for presence of
refrigerant to detect improperly sealed relief valves.
Replace any leaking relief valve.
• Inspect the condenser tubes for fouling; clean if
necessary. Refer to “Maintenance Procedures “.
• Check to make sure that the crank case heater is
working.
Scheduling Other Maintenance
Depending on chiller duty, contact a qualified service
organization to determine when to conduct a complete
examination of the unit to determine the condition of the
compressor and internal components.
Periodic Maintenance
Table 5 – Operating Conditions at Minimum Load R1234ze
Description
Condition
Evaporator approach
*< 4°C (non-glycol applications)
Condensing approach
*< 4°C
Subcooling
1-2°C
EXV percent open
10-20% open
* 0.5°C for new unit.
