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
CG-SVX051A-GB
32
Table 6 Minimum and maximum cutout flow rate
Unit size -->
80
90
100 110 130 140 150 165 180 190
Chilled
water
exchanger
Minimum detection water
flow rate*
l/s
2.6 2.9 3.1
3.7 4.1
4.5
4.8
5.2
5.7
5.9
Related setting duration
s
29
32
34
41
46
33
35
38
41
43
Maximum detection flow rate
at factory setting 65 sec (l/s)
W filter (W or
W/O pump)
5.9
9
W/O filter
W/O pump
5.9
Hot water
exchanger
Minimum detection water
flow rate
l/s
2.8 3.1 3.4
4.0 4.3
4.9
5.2
5.6
6.1
6.5
Related setting duration
s
31
34
38
44
48
35
38
40
44
47
Maximum detection flow rate
at factory setting 65 sec (l/s)
All
configurations
5.9
9
Chilled/hot water Piping
* Decrease by 10% the minimum detection flow rate for brine applications.
Table 7 - Maximum detection flow rate according pipe diameter
Pipe outer
diameter
(in / mm)
4”
114.3
5”
139.7
6”
168.3
Maximum
detection flow
rate (l/s)
5.9
9.0
13.0
Figure 6 - Conversion of flow rate to setting duration (seconds)
Flow switch setting procedure
Setting can be executed whatever the flow status.
1. For each exchanger, the setting can be done
by switching pin 1 and 5 (see Figure 7) of the
sensor. Refer to the unit wiring diagram for more
information.
a. Switch once on the button to initialize the setting
operation.
b. Wait 1 to 5 seconds to validate the setting
initialization.
c. Switch and hold pushed the button as much
time as the setting duration (max 65 seconds).
d. Wait for 5 second while the sensor holds its flow
status.
e. The sensor reverses the flow status for the time
of setting it has taken in account, count that time for
verification.
f. Output signal goes back to normal and the
setting is effective 5 seconds later.
Note:
In case that the device does not feedback the
derised setting, go back to step “a” and try again.
Note:
Tracer Symbio™ 800 needs 15 continuous second
of “no-flow” to generate a “loss-of-flow” diagnostic and
shutting the unit down.
Consider to move the flow switch out of the unit in case
the setting remains non satisfying.
