TECHNICAL DATA SHEET
0451
GX-D Twin-wall
OUTPUTS:
1370 to 3255
ltr/Hr @ 60˚C
COMMERCIAL/LARGE DOMESTIC TWIN-WALL
INDIRECT CYLINDERS
key: (right drawings)
a/g external cover
c
inspection opening
d
DHW storage
e
primary heating
f
outer hard finish
h
thermal insulation
i
control panel
j
immersion heater opening
p
levelling feet
s
sensor pocket
t
thermostat
support frame for horizontal floor installation
key: (below drawings)
A
diameter or width
B
height or depth
kw cold water inlet
ww hot water inlet
z
recirculation
kv primary circuit inlet
kr primary circuit outlet
m additional primary
connection
n
additional primary
connection
Models GX200/500-D:
Double walled tank
(with control panel & electric heating option)
Model GX200-TS:
GX-D standard supply
Double walled tanks for
horizontal installation (without electric heating option)
Models GX200/500-D-S:
GX-D available as option Double walled
tank (without electric heating option)
PERFORMANCE
DHW volume (litres)
HTG volume (litres)
HTG Surface m2
GX-200D
193
56
1.6
GX-300D
285
65
2.4
GX-500D
466
108
3.1
GX-200-TS
193
33
1.6
78
106
151
85
Dry weight (kgs)
Peak hot water output (primary flow 82˚C, water 10 to 60˚C)
(ltr/Hr)
1900
2640
3255
68
93
(ltr/min for 10mins)
48
3.8
3.6
Secondary pressure drop (kPA)
3.4
GX-D
GX-D-S
GX200-TS
l
l
GX-200D
1240
620
-
CONNECTIONS
Primary F&R
Secondary FR&CF
GX-200D
40
25
GX-300D
40
25
55
1.4
7.0
2.5
90
2.2
10.0
4.5
5.0
7.5
GX-500D
1730
770
-
41
1.4
7.0
-
GX-200-TS
630
630
1255
GX-500D
40
25
GX-200-TS
25
20
S P E C I F I C AT I O N
F E AT U R E S
l
DIMENSIONS
Height (mm)
Diameter (mm)
Width (mm)
Depth (mm)
76
2.2
10.0
2.5
also
or
GX-300D
1725
620
-
Primary input (kW)
Primary flow rate (l/sec)
Primary pressure drop (kPA)
Immersion Heater (kW)
GX200/500-D
1370
39
3.2
l The GX Series are double-walled tanks for DHW production and storage.
l The inner vessel is fabricated from chrome-nickel-molybdenum stainless steel, fitted with dished ends, argon-arc welded using the tungsten inert gas process,
corrugated for good strength and heat transfer, then de-stressed and surface treated. The vessel has a maximum working temperature of 90˚C &
maximum working pressure of 10 BARS. The vessels are manufactured to ISO 9001, registration no. ES-0108.
l The outer vessel is made from ST 37/2, DIN 17100 steel. The vessel has a maximum working temperature of 110˚C & a
maximum working pressure of 3 BARS.
l All the models are thermally insulated with rigid, mould-injected CFC-free polyurethane foam with removable padded polypropylene lining in white RAL
9016. By special order other colours are available - blue RAL 5015, orange - RAL2004 or silver grey RAL7042.
l The model GX..D includes a side hole and control panel, totally wired up, with a thermometer, control and limit thermostats, winter-summer switch, ON indicators, and
an indirect immersion heater. The immersion heater is inserted through the side hole, in the primary heating circuit, thus avoiding scale deposits and/or corrosion.
l The models GX..D & GX..TS can be fitted with a cathodic protection unit comprising a permanent anode, potentionstat and cables
l The model GX..D can be mounted horizontally using the support frame unit comprised of two curved supports, four profiles, levelling legs and screws.
l The model GX..TS, which is a version of the GX, is specifically design for horizontal installation or for a boiler (weighing less than 300kg) to be fitted on top
of the model. It includes an adjustment as a standards feature. An immersion heater is not offered.
Shorter Heat-up time under 10 minutes
Resistance to scale or
chalk build-up
Chrome-nickelmolybdenum
stainless steel resists
soft ‘acid’ water
GX-D TWIN-WALL TECHNICAL DIAGRAMS
SHR Boiler
60 kW
SHR Boiler
60 kW
filling loop
SHR Boiler serving
GX-D cylinder
Constant temperature or
second lower temperature
controlled circuit
SHR
Boiler
60kW
Balanced hot &
cold water
Balancing vessel
drain ball valve
Balanced hot
& cold water
xpansion valve
GX-D
In-direct
cylinder
mixing valve
pressure and
Balancing
temperature
relief valve
GX-D
SHR Boiler serving In-direct
cylinder
GX-D cylinder
Constant
temperature or
Balancing vessel
second lower temperature
controlled circuit
drain ball valve
Balanced hot
& cold water
vessel
filling loop
pressure regulating valve
SHR
Boiler
60kW
xpansion valve
pump
strainer
non return valve
V.T. Radiator
& under
floor circuit
Secondary
Circulation
Towel rail
circuit
mixing valve
pressure relief valve
pressure and
temperature
relief valve
automatic air vent
GX-D
Swimming
In-direct
valve
pool circuit anti vacuum
cylinder
Main cold
water supply
pressure regulating valve
isolating ball valve
C.T. or boiler
compensated
F&R
pump
thermometer
V.T.
compensated
F&R
Mains cold
water supply
Balancing vessel
Balanced hot
& cold water
thermostat
fail safe valve
drain ball valve
strainer
non return valve
filling loop
Boiler serving
SHR
D cylinder
Boiler
GX-D
TWIN-WALL
TECHNICAL
INFORMATION
stant temperature
or
60kW
In these two drawings, the
boilers are condensing. In normal use, they
nd lower
will temperature
be directed to the space heating running at weather-compensated
rolled circuit
temperature. When a demand for domestic hot water occurs, the boilers
C.T. or boiler
compensatedto
temperature
F&R
GX-D
are re-directed at high
the twin-wall
indirect cylinders
V.T.
In-direct
where rapid domestic hot water recovery takescylinder
place.
The boilers then
compensated
F &space
R
return to a lower weather-compensated temperature
heating.
pressure relief valve
xpansion valve
automatic air vent
anti vacuum valve
mixing valve
isolating ball valve
pressure and
temperature
relief valve
Mains cold
water supply
thermometer
thermostat
pressure regulating valve
fail safe valve
pump