6
Electrical connections
Free-standing water heaters may be used with a single-phase 230
VAC power supply or with three-phase 230 VAC or 400 VAC power
supplies.
Grounding the metal parts (with the special terminal on the unit) is
compulsory. The section of the line, the omnipole breaking device
and the protection system (fuses or circuit-breakers) shall be selec-
ted in keeping with applicable standards, depending upon the input
intensity, voltage and power.
Note: The heaters must necessarily be connected to a fixed piping system.
In principle, power will be supplied to the heater at night, manually or auto-
matically with the help of a clock supplied by the electricity company. In this
way, the water is heated when the reduced off-peak rate is charged for elec-
tricity. The unit may be fitted with a switch for supplying power in the daytime,
when the full rate is charged.
Type of water heater
FREE-STANDING HEATER
Capacity
litres
150
200
250
300
400
500
Power supply
multiple multiple multiple multiple multiple multiple
Section
mm
2
1,5
2,5
2,5
2,5
4
4
Single-phase 230 V
Intensity
Amp
7,8
10,4
13
13
19,6 21,7
Section
mm
2
1,5
1,5
1,5
1,5
2,5
2,5
Three-phase 230 V
Intensity
Amp
4,5
6,0
7,5
7,5
11,3 12,6
Section
mm
2
1,5
1,5
1,5
1,5
1,5
1,5
Three-phase 400 V
Intensity
Amp
2,6
3,5
4,3
4,3
6,5
7,2
Hydraulic connections
The connections are marked with blue (cold water) and red (hot
water) discs. Fitting a stop valve on the cold water supply pipe is
compulsory.
Safety rules require that a lead-sealed safety valve calibrated to 7
bar must necessarily be fitted on the cold water supply pipe (for the
guarantee to operate). We recommend the use of diaphragm type
hydraulic safety units bearing the NF mark.
pressure reducing
valve must be fitted if the supply pressure is greater than 5.5 bar.
Example of installation
Pressurised heater
(See page 7 for series configuration)
Type of heater
FREE-STANDING HEATER
Capacity
litres
150
200
250
300
400
500
12 x 14
14 x 16
18 x 20
20
Copper pipe dimensions
or
or
or
x
14 x 16
16 x 18
20 x 22
22
Note : With 150 -300 L heaters, the composite material connecting piece
(supplied in a bag) is to be fitted on the hot water outlet of the heater. It is
used to prevent the formation of a galvanic couple, which can lead to the cor-
rosion of the connection threads when the heater is connected directly to
copper or brass.
With 400 and 500 L heaters, connection to copper piping must necessarily
be done via cast-iron male/female reducing or non reducing pipe joints (for
the guarantee to operate). E.g.: _" or 1" AFY 40 pipe joints for 400 litre hea-
ters and 1" joints for 500 litre heaters.
6. Free-standing water heaters
Type of water heater
FREE-STANDING HEATER
Nominal capacity
litres
150
200
250
300
400
500
Nominal power
watts 1800
2400
3000
3000
4500
5000
Heating time (1)
4:15 hr. 5:30 hr. 4:30 hr. 5:55 hr. 5:20 hr. 6:00 hr.
Maintaining consumption
Maintaining consumption
1.30
1.58
1.93
2.28
2.34
3.48
Cooling constant
Wh per 24 hours / litre / ˚C
0.19
0.18
0.17
0.17
0.14
0.15
Category (as per 1989
Thermal Equipment regulations)
B -20 % B -20 % B -20 % B -20 %
-
-
Main dimensions
C
mm
10
10
10
10
25
25
D
mm
505
505
567
567
678
678
E
mm
25
25
31
31
26
26
H
mm 1223
1550
1529
1791
1695
2048
I
mm
275
275
300
300
315
315
P
mm
580
580
641
641
738
738
Weight without water
kg
50
63
92
96
125
148
(1) As per standard NFC 73 221 (15˚C to 65˚C).
(2) As per French Standard.
Heater shown here: 250 L
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Thick metal tank
(test pressure
12 bar)
Removable (screws
on the outside)
magnesium anodes
(400 and 500 L)
Adjustable
thermostat including
a thermal safety
device 400 and 500
l: contact bulb
thermostat (not
shown).
Multiple voltage
power supply
connection
Cold water supply
pipe
Adjustable feet
(400 and 500 L)
except 400 and 500 l
150 à 300L
400 à 500L
20
100
°
C
20
100
°
C
Hot water
outlet R 1
E
H
I
øD
C
C
60
P
45
°
cold water
supply R 1
31
Hot water
outlet R 3/4
E
I
H
øD
2
cold water
supply R 3/4
45
°
74
P
Fastening dimensions in mm
8979F013
Hot water outlet
pipe (stainless
steel). On 400 and
500 l, the outlet pipe
is fixed to a flange
accessible via a
hood on top of the
water heater
Vitreous enamel
with a high quartz
content, resistant to
the most corrosive
water
Rigid injected
polyurethane foam
insulating material
(0% CFC)
Thimble tube
thermostat
Imposed current
titanium anode
Heating element
made up of an
enclosed resistor on
a steatite support,
accessible without
draining the heater
(150, 200, 300 L).
Metal-clad element
in 400 and 500 L
models.
8971Q009
9. Stop valve
28. Cold water supply pipe
29. Pressure reducing valve
30. Safety unit set to 7 bars
a. Cold water inlet including
a non-return valve
b. Connection to the calori-
fier cold water inlet.
c. Stop valve.
d. valve and manual drain.
e. Drain orifice.
54. YA type load break (heal-
th regulations).
57. Hot water outlet
20
100
°
C
20
100
°
C
9
29
28
57
30
a
b
c
d
e
2 cm
(54)
8978F010
