9
11UNT-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
CG-SVU010C-GB
Relay Assignments Using Tracer™ TU
Tracer™ TU Service Tool is used to install the Programmable Relay Option package and assign any of the above lists
of events or status to each of the four relays provided with the option. (See “Tracer™ TU,” for more information on
the Tracer TU service tool) The relays to be programmed are referred to by the relay’s terminal numbers on the LLID
board 1A18.
The default assignments for the four available relays of the Programmable Relay option are:
Table 3 –
Programmable Relay option Default assignments
Relay
Relay 0 Terminals J2 - 1,2,3: Evaporator Freeze Avoidance Request
Relay 1 Terminals J2 - 4,5,6: Maximum Capacity
Relay 2 Terminals J2 - 7,2,3: Compressor Running
Relay 3 Terminals J2 – 10,11,12: Latching Alarm
The eight available relays in the Lead/Lag Chiller Sequence Option are assigned with the following defaults as follows:
Table 4 –
Lead/Lag Chiller Sequence Option Default assignments
LLID Name
LLD Software
Relay Designation
Output Name Default
Operating Status
Programmable Relays
Module 1
Relay 0 Status Relay 1, J2-1,2,3 Evaporator Water Freeze Avoidance Request
Relay 1 Status Relay 2, J2-4,5,6 Maximum Capacity
Relay 2 Status Relay 3, J2-7,8,9 Compressor Running
Relay 3 Status Relay 4, J2-10,11,12 Latching Alarm
Operating Status
Programmable Relays
Module 2
Relay 4 Status Relay 5, J2-1,2,3 Alarm Ckt 2
Relay 5 Status Relay 6, J2-4,5,6 Alarm Ckt 1
Relay 6 Status Relay 7, J2-7,8,9 Alarm (Latching or Non latching)
Relay 7 Status Relay 8, J2-10,11,12 Non Latching Alarm
If any of the Alarm/Status relays are used, provide electrical power, 115 VAC with fused-disconnect to the panel
and wire through the appropriate relays (terminals on 1A10). Provide wiring (switched hot, neutral, and ground
connections) to the remote annunciation devices. Do not use power from the chiller’s control panel transformer
to power these remote devices. Refer to the field diagrams which are shipped with the unit.
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