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Operation
Test Procedures
Operating checklist before start-up
•
Review submittals for rooftop and accessories as
well as main wiring diagrams and options shipped
FWD
with the unit
Power supply
•
Unit is level, with sufficient clearance all round
Capacities
Cooling capacity on water (1)
•
Duct network is correctly sized according to the unit
Heating capacity on water (2)
configuration, insulated, and water-tight
Fan motor
•
Condensate drainage line is correctly sized,
Fan power input (3)
Current amps (3)
equipped with a trap, and sloped
Start-up amps
•
Filters are in position, of correct size and quantity
Air flow
and clean
minimum
nominal
•
Wiring is correctly sized and connected in
maximum
accordance with wiring diagrams
Main coil
Water entering/leaving connections
•
Power supply lines are protected by recommended
fuses and correctly earthed
Electric heater (accessory for blower only)
•
Thermostat is correctly wired and positioned
Electric power supply
Heating capacity
•
Unit is checked for refrigerant charge and leaks
Hot water coil (accessory for blower only)
•
Indoor and outdoor fans rotate freely and are fixed
Heating capacity (4)
G2 filter (filter box accessory)
on shafts
Quantity
•
Supply fan rotation speed is set
Dimensions ( LxWxth)
•
Access panels and doors are replaced to prevent air
G4 filter (filter box accessory)
Quantity
entering and risks of injury
Dimensions ( LxWxth)
•
When ball valve is present on the refrigerant suction
Condensate pump (accessory)
Water flow - lift height
line, to check if the valve is open before starting the
Not available for FWD30 and FWD45
unit.
Sound level (L/M/H speed)
Sound pressure level (5)
Sound power level (5)
WARNING! If any operating checks must be performed
Unit dimensions
with the unit operating, it is the technician's
Width x Depth
Height
responsibility to recognize any possible hazards and
Shipped unit dimensions
proceed in a safe manner. Failure to do so could result
Width x Depth
in severe personal injury or death due to electrical shock
Height
or contact with moving parts.
Weight
Colour
Recommended fuse size
Power-up initialization
Unit alone (aM/gI)
Unit with electric heater (gI)
CAUTION! Before proceeding with any test procedure or
(1) Conditions: Water entering/leaving temperature: 7/12 °C, Air inlet temperature 27/19°C DB/WB - Nominal air flow
operation, make sure that crankcase heaters have been
(2) Conditions: Water entering/leaving temperature: 50/45 °C, Air inlet temperature 20°C DB - Nominal air flow
energized for at least 8 hours.
(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.
Starting the unit in cooling mode
(5) A rectangular glass wool duct 1m50 long is placed on the blower.The measurement is taken in the room containing the blower unit.
Before start-up, ensure that all power cables are
Heat exchanger operating limits:
FWD:
tightened.
*water temperature: max 100° C
*absolute service pressure: min 1 bar/max 11 bars
Verify that the unit airflow rate is adjusted.
Accessories - Hot water coil:
*water temperature: min. +2° C/max. 100° C
*absolute service pressure: min 1 bar/max 11 bars
4
46
Technical Data
Operating pressures
After the unit has operated in cooling mode for a short
period of time, install pressure gauges on the gauge
ports of the discharge and suction line valves.
08
Note: Always route refrigerant hoses through the port
(V/Ph/Hz)
hole provided and ensure that the compressor access
(kW)
5,2
panel is in place.
(kW)
6,3
Final installation checklist
(type)
(kW)
0,23
•
(A)
1,1
(A)
3,2
•
(m
/h)
490
3
(m
/h)
820
3
(m
/h)
980
3
•
(type)
(Dia)
3/4"
•
(V/Ph/Hz)
230/1/50
(kW)
2/4
•
(kW)
6,3
•
2
(mm)
386x221x8
•
-
•
(mm)
-
(type)
(l/h - mm)
•
(dB(A))
36/40/43
•
(dB(A))
46/50/53
(mm)
890 x 600
To keep the unit operating safely and efficiently, the
(mm)
250
manufacturer recommends that a qualified service
technician check the entire system at least once each
(mm)
933 x 644
(mm)
260
year, or more frequently if conditions warrant.
(kg)
32
Upon power initialization, the control performs self-
diagnostic checks to insure that all internal controls
(A)
8/16
are functioning. It checks the configuration parameters
(A)
16 (2kW),25 (4kW)
against the components connected to the system.
12
230/1/50
8,3
11,9
2 x direct drive centrifugal
0,46
Are all power cables tightened?
2,2
Check torque of power cables contact !
5,5
Is the condenser fan and indoor blower operating
980
correctly, i.e. correct rotation and without undue
1650
noise?
1970
Are the compressors operating correctly and has the
ISO R7 rotating female
system been checked for leaks?
3/4"
Have the voltage and running currents been checked
230/1/50 or 400/3/50
400/3/50
to determine if they are within limits?
8
Have the air discharge grilles been adjusted to
12
balance the system?
Has the ductwork been checked for air leaks and any
2
condensation?
486x271x8
586x321x8
Has the air temperature rise been checked?
2
Has the indoor airflow been checked and adjusted if
486x264x48
586x314x48
necessary?
Centrifugal
24 - 500
Has the unit been checked for tubing and sheet metal
rattles or any unusual noises?
38/41/44
46/50/53
Are all covers and panels in place and properly
48/51/54
56/60/63
fastened?
1090 x 710
1290 x 820
300
1133 x 754
1333 x 864
310
46
galvanised steel
8/16
40 (230V),3*16 (400V)
20
30
15
18,8
18,9
20,9
0,65
1,04
3,1
4,7
9,3
14,1
1400
1800
2300
3000
2600
3600
1 1/2"
1 1/2"
400/3/50
400/3/50
10
12
17,4
22,4
2
2
586*421*8
586*621*8
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
350
450
1333 x 1008
1333*1133
360
460
61
76
8/16
8/25
3*20
3*25
UNT-PRC002-GB
RT-SVX060D-GB
45
30,1
38,2
1,51
5,5
16,5
2700
4500
5400
1 1/2"
12
34,5
2
2
650
660
118
8/25
3*25
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