Trane Tracer TD7, User Manual

Page: 15 / 24

RLC-SVU007D-GB 15
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
Chilled Water Reset (CWR)
How many Degrees of Reset will there be?
Degrees of Reset = Reset Ratio*(Start Reset - (TWE-
TWL))
Degrees of Reset =
.5*(-6.67-(18.3-7.22))
Degrees of Reset = -8.875
If:
Reset Ratio
= 70%
Start Reset = -6.67°C
TWE = 15.55°C
TWL = 11.67°C
Maximum Reset = -10°C
How many Degrees of Reset will there be?
Degrees of Reset = Reset Ratio*(Start Reset - (TWE-
TWL))
Degrees of Reset =
.7*(-6.67-(15.55-11.67))
Degrees of Reset = -18.12
The following graph illustrates the Reset Actions of the
above examples:
The following graph illustrates the Reset Action of
Constant Return temperature:
Note: This graph assumes a Design Delta Temp of
-12.2°C.
Diagnostic
If any sensor measurement needed to perform the
currently selected chilled water reset type is invalid due
to loss of communication or sensor failure, the desired
CWR will be set to 0. The actual CWR is subject to
maximum rate limits described earlier.