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Refrigerant flow diagram
Refrigerant flow diagram for unit is supplied with drawing package with unit order.
Figure 6 – Example of typical refrigerant flow diagram
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
Unit
speed
1
FWD 08
2
3
1
FWD 10
2
3
1
FWD 12
2
3
1
FWD 14
2
3
1
FWD 20
2
3
Intake
Measurement conditions:
Measurements taken at the horizontal air intake.
Fan
Unit
speed
1
FWD 08
2
3
1 = Screw compressor
1
2 = Brazed plate evaporator
FWD 10
2
3 = Brazed plate condenser
3
4 = Evaporator water inlet connection
1
FWD 12
2
5 = Evaporator water outlet connection
3
6 = Condenser water inlet connention
1
7 = Condenser water outlet connention
FWD 14
2
3
8 = Oil separator
1
9 = Electric expantion valve
FWD 20
2
10 = Sight glass
3
11 = Relief valve
12 = Service valve
13 = Oil service valve
14 = Schraeder valve
UNT-PRC002-GB
RLC-SVX023A
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
PT = Pressure transducer
62
58
55
PSH = High pressure relief valve
66
63
60
70
67
63
PSL = Low pressure relief valve
66
65
65
PZH = High pressure switch
73
72
69
TT = Temperature sensor
78
76
73
68
72
64
TCE = Electronic expansion valve
76
76
68
TC = Thermostatic expansion valve
78
79
71
LT = Liquid level sensor
Option A = Auxiliary oil cooler
Option B = Dual relief valve for discharge side
Option C = Single or dual relief valve for suction side
Option D = Liquid line according to evaporator size
Operating Principles Mechanical
1000
2000
37
37
40
30
42
32
42
34
45
38
48
40
42
34
45
38
48
40
48
39
53
47
56
50
49
40
53
47
56
50
1000
2000
53
46
60
53
62
56
REFRIGERANT LINE
OIL LINE
58
51
CHILLED HEATED WATER LINE
62
56
INSULATION
65
59
58
51
62
56
65
59
65
57
71
64
75
69
64
56
71
65
74
69
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
29
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