RLC-SVX023A
18
4
UNT-PRC002-GB
Technical Data
FWD
08
12
20
30
45
Power supply
(V/Ph/Hz)
230/1/50
Capacities
Cooling capacity on water (1)
(kW)
5,2
8,3
15
18,8
30,1
Heating capacity on water (2)
(kW)
6,3
11,9
18,9
20,9
38,2
Fan motor
(type)
2 x direct drive centrifugal
Fan power input (3)
(kW)
0,23
0,46
0,65
1,04
1,51
Current amps (3)
(A)
1,1
2,2
3,1
4,7
5,5
Start-up amps
(A)
3,2
5,5
9,3
14,1
16,5
Air flow
minimum
(m
3
/h)
490
980
1400
1800
2700
nominal
(m
3
/h)
820
1650
2300
3000
4500
maximum
(m
3
/h)
980
1970
2600
3600
5400
Main coil
Water entering/leaving connections
(type)
ISO R7 rotating female
(Dia)
3/4"
3/4"
1 1/2"
1 1/2"
1 1/2"
Electric heater (accessory for blower only)
Electric power supply
(V/Ph/Hz)
230/1/50
230/1/50 or 400/3/50
400/3/50
400/3/50
400/3/50
Heating capacity
(kW)
2/4
8
10
12
12
Hot water coil (accessory for blower only)
Heating capacity (4)
(kW)
6,3
12
17,4
22,4
34,5
G2 filter (filter box accessory)
Quantity
2
2
2
2
2
Dimensions ( LxWxth)
(mm)
386x221x8
486x271x8
586x321x8
586*421*8
586*621*8
G4 filter (filter box accessory)
Quantity
-
2
2
2
2
Dimensions ( LxWxth)
(mm)
-
486x264x48
586x314x48
586*414*48
586*614*48
Condensate pump (accessory)
(type)
Centrifugal
Water flow - lift height
(l/h - mm)
24 - 500
Not available for FWD30 and FWD45
Sound level (L/M/H speed)
Sound pressure level (5)
(dB(A))
36/40/43
38/41/44
46/50/53
47/52/57
47/52/58
Sound power level (5)
(dB(A))
46/50/53
48/51/54
56/60/63
57/62/67
57/62/68
Unit dimensions
Width x Depth
(mm)
890 x 600
1090 x 710
1290 x 820
1290 x 970
1290 x 1090
Height
(mm)
250
300
350
450
650
Shipped unit dimensions
Width x Depth
(mm)
933 x 644
1133 x 754
1333 x 864
1333 x 1008
1333*1133
Height
(mm)
260
310
360
460
660
Weight
(kg)
32
46
61
76
118
Colour
galvanised steel
Recommended fuse size
Unit alone (aM/gI)
(A)
8/16
8/16
8/16
8/25
8/25
Unit with electric heater (gI)
(A)
16 (2kW),25 (4kW)
40 (230V),3*16 (400V)
3*20
3*25
3*25
(1) Conditions: Water entering/leaving temperature: 7/12 °C, Air inlet temperature 27/19°C DB/WB - Nominal air flow
(2) Conditions: Water entering/leaving temperature: 50/45 °C, Air inlet temperature 20°C DB - Nominal air flow
(3) At high speed with nominal air flow.
(4) Water entering/leaving temperature 90/70 °C, air inlet temperature 20 °C DB, Nominal air flow.
(5) A rectangular glass wool duct 1m50 long is placed on the blower.The measurement is taken in the room containing the blower unit.
Heat exchanger operating limits:
FWD:
*water temperature: max 100° C
*absolute service pressure: min 1 bar/max 11 bars
Accessories - Hot water coil:
*water temperature: min. +2° C/max. 100° C
*absolute service pressure: min 1 bar/max 11 bars
Condenser Water Temperatures
With the model RTSF chiller, a condenser water control
method is necessary only if the unit starts with entering
water temperatures below 13°C, or between 7°C and
13°C, when a temperature increase of 0.6°C per minute
to 13°C is not possible.
When the application requires startup temperatures
below the prescribed minimums, a variety of options are
available. To control a 2-way or 3-way valve, Trane offers
a Condenser Regulating Valve Control option for the
Tracer UC800 controls.
Condenser leaving water temperature must be 9°C
higher that evaporator leaving water temperature within
2 minutes after start-up. A minimum of 14°C differential
must be maintained afterwards.
The minimum acceptable refrigerant pressure differential
between condenser and evaporator is 1.7 Bar. The chiller
control system will attempt to obtain and maintain this
differential at startup, but for continuous operation
a design should maintain a 14°C differential from
evaporator leaving water temperature to condenser
leaving water temperature.
CAUTION! In case of low evaporator leaving water
temperature applications, the non use of glycol on the
condenser side may result in condenser plate freeze-up.
Condenser Water Regulation
The Condenser Head Pressure Control Option provides
for a 0-10VDC (maximum range -a smaller range is
adjustable) output interface to the customer’s condenser
water flow device. This option enables the Tracer UC800
controls to send a signal for opening and closing a
2-way or 3-way valve as necessary to maintain chiller
differential pressure.
Methods other than those shown can be employed to
achieve the same results. Contact your local Trane office
for details.
Contact the manufacturer of the cooling device for
compatibilty with variable water flow.
Throttling valve (Figure 2)
This method maintains condensing pressure and
temperature by throttling water flow leaving the
condenser in response to condenser pressure or system
differential pressures.
Advantages:
• Good control with proper valve sizing at relatively low
cost.
• Pumping cost can be reduced.
Disadvantages:
• Increased rate of fouling due to lower condenser water
velocity.
• Requires pumps that can accommodate variable flow.
Figure 2
1
3
4
4
CDS
EVP
5A
6
7
2B
CO
CI
EO
EI
Installation - Mechanical
