RLC-SVX19G-GB
132
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
Optional Free-Cooling
Chiller integrated free-cooling
operation mode
The power of chiller integrated free-cooling relies on
the chiller control to maximize the use of free-cooling
when outdoor temperatures are favorable. The choice
between compressor refrigeration and Free-Cooling
refrigeration will be made and activated depending on
three temperature measurements:
• The ambient air temperature
• The evaporator entering and leaving temperature
• The chilled water set point
Free-cooling coils are fit in series with the evaporator,
and a set of water regulation valves allows the coils
to be by-passed when they are no longer needed due
to outdoor temperatures which are favorable for free-
cooling.
Three operating modes can be differentiated:
1. Summer operation or Compressor refrigeration
mode
In this operation mode, ambient temperature is higher
than the temperature of the fluid entering the evaporator.
Free-cooling is not activated, compressors are running,
and control is done in function of the fan/compressor
logic of operation.
2. Mid-season operation or combined refrige
Free-cooling mode
In this operation mode, free-cooling will be enabled
whenever the outdoor temperature is below the
evaporator entering water temperature. The operating
logic is described below. The free-cooling system
operates combined with the mechanical compressor
refrigeration. Most of the time, free-cooling will only
partially cover the required cooling duty. In other words,
mechanical refrigeration will complete what has already
been delivered by free-cooling.
3. Winter operation or Full free-cooling mode
Below a certain ambient temperature, and depending
on the chilled water set point requested, the entire
cooling duty is delivered by the free-cooling system.
Compressors do not operate, since the free-cooling
coils will be able to deliver the requested chilled water
temperature. The regulation of the capacity is described
in the next section. In this mode, only fans are running.
General information
The chiller integrated free-cooling system fluid based
consist in a set of “Macro-channels” or “Radiators” coils,
fit in the same frame than the MCHE condenser coils
of the chiller refrigerant circuit. Free-cooling coils will
be full aluminum, flat radiator design type, with low air
pressure drop to avoid fan performances degradation.
Free-cooling coils are fit in series with the evaporator,
and a set of water regulation valves ensures the system
to reach the required free-cooling capacity.
