RLC-SVX023A
35
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
Pre-Start Checkout
CAUTION
Proper Water Treatment!
The use of untreated or improperly treated water may
result in scaling, erosion, corrosion, algae or slime. It
is recommended that the services of a qualified water
treatment specialist be engaged to determine what
water treatment, if any, is required. Trane assumes no
responsibility for equipment failures which result from
untreated or improperly treated water, or saline or
brackish water.
Installation Checklist
Complete this checklist as the unit is installed, and verify
that all recommended procedures are accomplished
before the unit is started. This checklist does not replace
the detailed instructions given in the “Installation
Mechanical” and “Installation Electrical” sections of
this manual. Read both sections completely, to become
familiar with the installation procedures, prior beginning
the work.
General
When installation is complete, before starting the unit,
the following prestart procedures must be reviewed
and verified:
1. Inspect all wiring connections in the compressor
power circuits (disconnects, terminal block,
contactors, compressor junction box terminals
and so forth) to ensure they are clean and tight.
2. Open all refrigerant valves in the discharge, liquid,
and oil return lines.
3. Check the power-supply voltage to the unit at the
main-power fused-disconnect switch. Voltage must
be within the voltage use range and also stamped
on the unit nameplate. Voltage fluctuation must not
exceed 10%.Voltage imbalance must not exceed 2%.
4. Check the unit power phasing L1-L2-L3 in the starter
to ensure that it has been installed in a “A-B-C”
phase sequence.
5. Fill the evaporator and condenser water circuit.
Vent the system while it is being filled. Open the
vents on the top of the evaporator water and
condenser boxes while filling and close when filling
is completed.
6. Close the fused-disconnect switch(es) that supplies
power to the chilled-water pump starter.
7. Start the evaporator and condenser water pump to
begin circulation of the water. Inspect all piping for
leakage and make any necessary repairs.
8. With water circulating through the system, adjust
the water flow and check the water pressure drop
through the evaporator and condenser.
9. Adjust the chilled-water flow switch for proper
operation.
10. Reapply power to complete the procedures.
11. Prove all Interlock and Interconnecting Wiring
Interlock and External as described in the Electrical
Installation section.
12. Check and set, as required, all UC800 TD7 menu
items.
13. Stop the evaporator and condenser water pump.
14. Energize the compressor and oil separator heaters
24 hours, prior to unit start up.
Unit Voltage Power Supply
Unit voltage must meet the criteria given in the
installation Electrical Section. Measure each lead of
the supply voltage at the main power fused-disconnect
switch for the unit. If the measured voltage on any lead
is not within the specified range, notify the supplier of
the power and correct the situation before operating
the unit.
Unit Voltage Imbalance
Excessive voltage imbalance between the phases of
a three-phase system can cause motors to overheat
and eventually fail. The maximum allowable unbalance
is 2%. Voltage imbalance is determined using the
following calculations:
% Imbalance = [(Vx – Vave) x 100/Vave]
Vave = (V1 + V2 + V3)/3
Vx = phase with greatest difference from Vave (without
regard to the sign)
