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