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
28
Installation Requirements
Location Requirements
Sound consideration
The most effective form of acoustical isolation is to
locate the unit away from any sound sensitive area.
Structurally transmitted sound can be reduced by
elastomeric vibration eliminators. Spring isolators are
not recommended. Consult an acoustical engineer in
critical sound applications.
For maximum isolation effect, isolate water lines and
electrical conduit. Rubber isolated piping hangers can
be used to reduce the sound transmitted through water
piping. To reduce sound transmitted through electrical
conduit, use flexible electrical conduit.
EU and Local Regulations codes on sound emissions
should always be considered. Since the environment
in which a sound source is located affects the sound
pressure, unit placement must be carefully evaluated.
Clearances
When installing the unit, provide enough space around
the unit to allow the installation and maintenance
personnel unrestricted access to all service points.
Unobstructed flow of condenser air is essential to
maintain unit capacity and operating efficiency. When
determining unit placement, give careful consideration
to ensuring a sufficient air flow across the condenser
coils heat-transfer surface.
In case of enclosure around the unit, the height of the
enclosure must not be higher than the unit itself. If the
enclosure is higher than the unit, restrictive airflow
louvers should be fitted to ensure fresh air supply.
Refer to submittal drawings for complementary
information.
Installation Responsibilities
Generally contractor must do the following Items when
installing a CMAF Multi-Pipe unit:
1. Install the unit on a flat foundation strong enough to
support unit loading and leveling within 5 mm over
its length and width.
2. Install the units as per instructions contained in this
manual.
3. Where specified, provide and install valves in the
water piping upstream and downstream of the water
exchanger water connections, to isolate both chilled/
hot water exchangers for maintenance, and to
balance and trim the system.
4. Set the factory mounted flow switch to confirm the
effectivity of pump flow
5. Furnish and install water pressure gauges in the
water inlet and outlet of the Chilled/Hot Water
Exchanger.
6. Furnish and install an expansion tank on pump
suction of hot water loop when unit is common with
heat recovery pump
7. Supply and install an air vent cock to the top of the
chilled and hot water loop.
8. Furnish and install strainers ahead of all pumps and
automatic modulating valves.
9. Provide and install field wiring according to
schematics provided in the control panel.
10. Install heat tape and insulate the chilled water lines
and any other portion of the system, as required,
to prevent sweating or excessive heat loss under
normal operating conditions or freezing during low
ambient temperature conditions.
11. Ensure that the compressor and compressor
heaters have been operating for a minimum of 24
hours before starting. Failure to do so may result in
equipment damage.
12. Start the unit under supervision of a qualified service
technician
Lifting and Moving Instructions
A specific lifting method is recommended, which can be
described as follow:
1. Lifting points are built into the unit, see lifting
instruction label on the unit.
2. Slings and spreader bar must be provided by crane
operator and attached on the lifting points.
3. Use the 4 rigging points which are built into the unit.
4. The minimum lifting capacity of each sling as
well as the spreader bar must be higher than the
tabulated unit shipping weight.
Figure 2 - Typical handling
CAUTION!
Lift and handle with care. Avoid shocks while
handling.
Details of lifting instruction and container pull out are
given in the drawings specific for lifting and handling
shipped with the unit.
WARNING! Heavy Objects!
Ensure that all the lifting
equipment used is properly rated for weight of the
unit being lifted. Each of the cables (chains or slings),
hooks, and shackles used to lift the unit must be capable
of supporting the entire weight of unit. Lifting cables
(chains or slings) may not be the same length. Adjust as
necessary for even unit lift. Other lifting arrangements
could cause equipment or property damage. Failure
to follow instructions above or properly lift unit could
