MODEL
STORAGE UNITS PIPES SIZE
DIMENSIONS IN MM
WEIGHT
CAPACITY INLET OUTLET A B C D E F
WHEN
FULL KG
DIRECT RANGE
Wall Hung
ST 50
ST 80
ST 100
Floor Standing
CONTRACT STD 100
CONTRACT STD 125
CONTRACT STD 150
CONTRACT STD 210
CONTRACT STD 300
500 STD UK
INDIRECT RANGE
CONTRACT STI 125
CONTRACT STI 150
CONTRACT STI 210
CONTRACT STI 300
500 STI UK
COMFORT STI 125
COMFORT STI 150
COMFORT STI 210
50 L
75 L
100 L
100 L
125 L
150 L
200 L
300 L
495 L
125 L
150 L
200 L
300 L
495 L
125 L
150 L
200 L
1/2”
3/4”
3/4”
3/4”
3/4”
3/4”
3/4”
3/4"
1”
3/4”
3/4”
3/4”
3/4”
1"
3/4”
3/4”
3/4”
410
590
550
530
700
840
990
1215
1390
700
840
990
1215
1390
700
840
990
-
-
-
-
-
-
-
-
-
0.75
0.9
0.9
0.9
1.5
0.75
0.9
0.9
120
175
175
650
805
965
1280
1555
335
805
965
1280
1555
335
805
965
1280
580
740
700
890
1045
1205
1525
1790
1870
1045
1205
1525
1790
1870
1045
1205
1525
160
230
230
-
-
-
-
-
-
675
815
815
815
700
675
815
815
475
475
575
-
-
-
-
-
-
-
-
-
-
-
-
-
-
460
460
560
505
505
505
505
560
714
505
505
505
560
714
505
505
505
77
115
141
129
158
190
245
385
630
166
201
256
395
641
169
203
258
T
ABLE
1
COIL
SURFACE
m
2
5
It is important to ensure that the cold water main is capable of supplying the
increased demand which will be imposed on it. Hot and cold water are both
drawn off the same source of supply. Remember, there will not be a storage
tank to help compensate for variations in the demand on the system.
A minimum pressure of approximately 1.5 bar and 20 litres per minute is
required for satisfactory operation. 85% of UK dwellings have a mains
pressure above 2.0 bar.
N
OTE
: THE MAINS WATER SUPPLY MUST NOT EXCEED 16 BAR.
The cylinder should be left packed until it is time to install. When unpacking
the appliance follow the guidelines within the packaging and take care not to
damage the temperature and pressure relief valve.
The cylinder may be installed at any convenient position, as it is connected
to the mains cold water supply, it is equally effective on any floor.
However, do not install the unit in premises which may be subject to
freezing. Ensure that the floor load bearing strength is adequate to take the
weight of the cylinder when full of water (see T
ABLE
1).
The ST50, ST80 and ST100 models are wall mounted. All other models are
free standing. These are supplied with feet which are attached to the heater
via self-tapping screws which are also supplied. All units must be installed in
the VERTICAL POSITION.
For maintenance purposes leave at least 500 mm free space in front of the
unit, for access to electrical components, immersion heater(s) and
magnesium anodes (where applicable).
2.5
C
OLD
W
ATER
S
UPPLY
2.4
O
VERALL
D
IMENSIONS
2.6
S
ITING AND
F
IXING
C
B
315
F
A
45
22 30'
45
ST 50-80-100
CONTRACT
STD 100-125-150-210
45
22 30'
22 30'
45
C
B
D
275
315
F
A
CONTRACT
STI 125-150-210-300
795
45
F
D
C
230
B
A
500 STD UK - 500 STI UK
45
22 30'
22 30'
45
C
B
D
275
315
F
A
COMFORT
STI 125-150-210
Summary of Contents for Contract STI 300 indirect
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