22
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
AH-SVX03C-GB
Figure 18
Figure 19
Pre-start checklist
Initially the complete unit and all components should be thoroughly cleaned and all dust and other deposits
completely removed.
The unit must be maintained in a clean condition.
Prior to dispatch, each unit is thoroughly checked. Nevertheless, as part of the commissioning procedure, it is
imperative to recheck certain items as listed below.
Check that there are no foreign bodies in the unit or in the duct system and that air inlet sand outlets are not
blocked.
Some of the settings on the unit may have changed during transportation and installation process.
Make sure all bolts and screws are tightened, especially moving parts such as fan pulleys, bearings etc.
Make sure electrical connections are tightened.
For units with variable air volume devices, check that dampers are fully open.
Make sure that the dampers move freely in their correct positions and that they operate correctly.
If the unit is provided with a cross flow heat recovery exchanger, it is designed to resist at the nominal
differential pressure indicated on the technical sheet, so all dampers and interception devices must be opened.
This action should be interlocked to the control system.
Fan motor
Check that the fan revolves freely by turning the impeller manually and verify that no foreign bodies are lodged
in the fan scroll.
Remove the locking block under the motor-fan base frame.
Check that the fixing screws on the belt pulleys are tight (see Figures 18 and 19).
Check the fan belt tension and pulleys alignment. Realign and retighten if necessary (See Maintenance section).
Make sure that the dampers move freely and that any transport packing has been removed.
Check the motor connections and make sure that the correct voltage supply is being used. Verify the lubrication
of fan and motor bearings (See Maintenance section and follow the motor manufacturer's recommendations).
Bearings could be pre-lubricated. Start-up may be noisy until grease is evenly distributed. Please refer to the
individual supplier's installation, operation, and maintenance manuals for additional information.
If adjustable pulleys have been fitted, ensure they are positioned in the correct ratio. The setting is done at the
factory and should not require further adjustment. If adjustment must be made, refer to the section about pulleys
in this manual.
Fan must not work with interception device closed, like dampers, in order to avoid permanent deformation of the
structure. Dampers must be open during fan operation. Trane cannot be held responsible of structural damages
due to that.
Commissioning procedure
