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Unit Start Up Procedures
CAUTION! To prevent damage to the compressor, ensure
that all refrigerant valves are open before starting the
unit. Do not use untreated or improperly treated water.
Equipment damage may occur.
FWD
Temporary Shutdown and Restart
Power supply
Capacities
Temporary Shutdown is used for control operation,
Cooling capacity on water (1)
Heating capacity on water (2)
maintenance or to repair the unit typically less than one
Fan motor
week.
Fan power input (3)
Current amps (3)
To shut the unit down for a short time, use the following
Start-up amps
Air flow
procedure:
minimum
nominal
1. Press the STOP key on the TD7. The compressors
maximum
Main coil
will continue to operate and, after unloading for
Water entering/leaving connections
20 seconds, will stop when the compressor
contactors de-energize.
Electric heater (accessory for blower only)
2. Stop the water circulation by turning off the chilled
Electric power supply
Heating capacity
water pump at least one minute after the stop of the
Hot water coil (accessory for blower only)
compressors.
Heating capacity (4)
G2 filter (filter box accessory)
Quantity
To restart the unit after a temporary shutdown, enable the
Dimensions ( LxWxth)
chilled-water pump and press the AUTO key.
G4 filter (filter box accessory)
Quantity
The unit will start normally, provided the following
Dimensions ( LxWxth)
Condensate pump (accessory)
conditions exist:
Water flow - lift height
Not available for FWD30 and FWD45
• The UC800 receives a call for cooling and the
Sound level (L/M/H speed)
Sound pressure level (5)
differential-to-start is above the set point
Sound power level (5)
• All system operating interlocks and safety circuits are
Unit dimensions
satisfied
Width x Depth
Height
Shipped unit dimensions
Width x Depth
CAUTION! Under freezing conditions, the chilled water
Height
pump must remain in operation during the full shutdown
Weight
period of the chiller if the chilled water loop does not
Colour
Recommended fuse size
contain glycol, to prevent any risk of evaporator freeze-
Unit alone (aM/gI)
up. Refer to charts 1 and 2.
Unit with electric heater (gI)
(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
4
114
Technical Data
Extended Shutdown Procedure
The following procedure is to be followed if the system
is to be taken out of service for an extended period of
time (i.e. seasonal shutdown):
08
(V/Ph/Hz)
1. Test the unit for refrigerant leaks and repair as
(kW)
5,2
(kW)
6,3
2. Open the electrical disconnect switches for the
(type)
(kW)
0,23
(A)
1,1
(A)
3,2
3. Close all chilled-water supply valves. Drain the water
(m
/h)
490
3
4. Open the unit main electrical disconnect and unit-
(m
/h)
820
3
(m
/h)
980
3
(type)
5. At least every three months (quarterly), check
(Dia)
3/4"
(V/Ph/Hz)
230/1/50
(kW)
2/4
CAUTION! Lock the chilled-water pump disconnects open
(kW)
6,3
to prevent pump damage. Lock the disconnect switch
2
in the "OPEN" position to prevent accidental startup
(mm)
386x221x8
and damage to the system when it has been set up for
-
extended shutdown.
(mm)
-
(type)
During an extended shutdown period, especially over the
(l/h - mm)
winter season, the evaporator must be drained of water,
if the chilled water loop does not contain glycol,
(dB(A))
36/40/43
to prevent any risk of evaporator freeze-up.
(dB(A))
46/50/53
(mm)
890 x 600
(mm)
250
(mm)
933 x 644
(mm)
260
(kg)
32
(A)
8/16
(A)
16 (2kW),25 (4kW)
12
230/1/50
8,3
necessary
11,9
18,9
2 x direct drive centrifugal
chilled-water pump. Lock the switches in the "OPEN"
0,46
0,65
position.
2,2
5,5
from the evaporator.
980
1400
1650
2300
1970
2600
mounted disconnect (if installed) and lock in the
"OPEN" position.
ISO R7 rotating female
3/4"
1 1/2"
the refrigerant pressure in the unit to verify the
230/1/50 or 400/3/50
400/3/50
refrigerant charge integrity.
8
12
17,4
2
486x271x8
586x321x8
2
486x264x48
586x314x48
Centrifugal
24 - 500
38/41/44
46/50/53
48/51/54
56/60/63
1090 x 710
1290 x 820
300
1133 x 754
1333 x 864
310
46
galvanised steel
8/16
8/16
40 (230V),3*16 (400V)
3*20
20
30
15
18,8
30,1
20,9
38,2
1,04
1,51
3,1
4,7
5,5
9,3
14,1
16,5
1800
2700
3000
4500
3600
5400
1 1/2"
1 1/2"
400/3/50
400/3/50
10
12
22,4
34,5
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
650
1333 x 1008
1333*1133
360
460
660
61
76
118
8/25
8/25
3*25
3*25
RLC-SVX19E-GB
UNT-PRC002-GB
45
12
2
2
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