SGS
Condensing High Efficiency
Gas-Solar Water Heater
SGS - 28/30/50/60/80/100
Solar
control
Fully room sealed condensing high efficiency gas-solar water
heater (95 % gross) • Maximum solar contribution through fully
integrated intelligent solar controller • 1 control and display unit
for the complete installation • Extra solar contribution possible up
to 40 % compared to standard solar systems • Suitable in combination
with storage tanks up to 3000 liters • Flexible flue options (maximum
lenght 115m) • Thermocontrol for easy flexible control / fault
diagnosis • Programmable for legionella purge cycle • All models
suitable for natural or LP gas • Meets latest EPC standards:
SGS 28-60 : 0,902 • Scale formation is reduced through the improved
design and location of the heat exchanger • Very easy maintenance
and installation • SGS 80 - SGS 100 standard applied with powered
anodes • Remote control connection • Voltage-free contact for
general fault indication • Unvented kits are optional
Storage
Tank
Innovation has a name.
SGS
SGS
Technical specifications
Gas data natural gas 2H (G20)
Input*
kW
32.1
30.5
20
8.5
3.1
4.90
70
56.8
34.5
32.7
20
8.5
3.3
5.10
50
61.1
52.6
48.8
20
8.5
5.0
7.00
75
85.4
63.2
59.6
20
11.5
6.0
7.10
75
101.4
86.6
81.9
20
6.0
8.3
6.30
50
141.9
105.5
99.8
20
Output
kW
Inlet pressure
mbar
mbar
m3/h
mm
°C
Burner pressure
Gas consumption **
Diameter injector
Max. flue gas temperature
Flue gas discharge
6.0
10.1
6.80
50
kg/h
164.3
Gas data butane gas 3+ G30
Input*
kW
30.7
29.8
30
32.8
31.8
30
50.6
48.1
30
59.4
56.9
30
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Output
kW
Inlet pressure
mbar
mbar
kg/h
mm
°C
Burner pressure
Gas consumption **
Diameter injector
Max. flue gas temperature
Flue gas discharge
-
-
-
-
2.2
2.50
70
2.4
2.60
50
3.7
3.40
75
4.3
3.80
75
kg/h
60.0
62.2
86.0
101.9
Gas data propane gas 3+ G31
Input*
kW
29.0
28.1
37
30.9
29.8
37
50.3
47.7
37
59.1
56.9
37
84.8***
81.9***
30***
13.0***
6.1***
4.70***
50***
142.1***
103.3***
99.8***
30***
13.0***
7.4***
5.10***
50***
176.4***
Output
kW
Inlet pressure
mbar
mbar
kg/h
mm
°C
Burner pressure
Gas consumption **
Diameter injector
Max. flue gas temperature
Flue gas discharge
-
-
-
-
2.1
2.50
70
2.2
2.60
50
3.6
3.40
75
4.2
3.80
75
kg/h
54.3
56.5
85.1
101.0
Draw-off capacity
Storage capacity
Max. temperature setting
l
°C
217
80
368
80
368
80
368
80
460
80
460
80
T
= 10ºC / T = 65ºC
set
cold
30 min ∆T=44°C
60 min ∆T=44°C
90 min ∆T=44°C
120 min ∆T=44°C
Continuous ∆T=44°C
Heating-up time ∆T=44°C
30 min ∆T=50°C
60 min ∆T=50°C
90 min ∆T=50°C
120 min ∆T=50°C
Continuous ∆T=50°C
Heating-up time ∆T=50°C
30 min ∆T=55°C
60 min ∆T=55°C
90 min ∆T=55°C
120 min ∆T=55°C
Continuous ∆T=55°C
Heating-up time ∆T=55°C
l
l
l
l
457
755
1053
1350
595
22
402
664
926
1188
524
25
366
604
842
1080
476
27
642
961
1280
1599
638
35
565
846
1126
1407
562
39
513
769
1024
1279
511
43
784
1261
1738
2215
954
23
690
1110
1530
1950
840
26
627
1009
1391
1772
763
897
1461
2043
2625
1164
19
1139
1939
2737
3540
1601
17
1002
1706
2411
3115
1409
20
1296
2270
3245
4220
1950
14
1140
1998
2856
3714
1716
16
1036
1816
2596
3376
1560
18
l/h
min
l
l
l
l
l/h
min
l
l
l
l
773
1286
1798
2310
1025
22
703
911
1169
1634
2100
932
1551
2191
2832
1281
22
l/h
min
29
24
Electrical data
Power consumption
Power supply
W
VAC/Hz
275
275
275
275
600
690
230(-15% / +10 % VAC)
General
Fan rotational speed at ignition
Working speed fan
Pressure differential
Diameter of air restrictor
Anodes
r.p.m.
r.p.m.
Pa
mm
-
4500
5000
635/605
23
4500
5400
855/825
23
4500
6000
885/855
4500
6660
1085/1055
2790
5100
1005/975
36
2-electric
3120
5700
1145/1115
38
2-electric
28
4
29
4
4
4
Maximum working pressure
bar
8
Shipping data
Empty weight
Max. weight
kg
kg
177
394
214
582
214
582
214
582
480
940
480
940
Weight incl. packaging
Width packaging
Height packaging
Depth packaging
kg
197
870
1550
950
234
870
2080
950
234
870
2080
950
234
870
2080
950
491
920
2060
1020
491
920
2060
1020
mm
mm
mm
SGS
Dimensions SGS 28-60
A
C
D
E
1485
490
705
2005
490
705
2005
490
705
2005
490
705
925
925
925
925
F
850
850
850
850
G
H
80/125
1460
100/150
2000
265
100/150
2000
265
100/150
2000
265
Hx 265
Hy 375
375
375
375
K
M
N
1365
265
1485
1895
255
2005
205
1895
255
2005
205
1895
255
2005
205
Ny 205
P
R
S
265
180
995
270
170
1505
240
270
170
1505
240
270
170
1505
240
W 220
1
2
3
4
5
6
7
Cold water connection
Hot water connection
Gas valve connection
Drain valve connection
Temperature and pressure valve
Inspection flange
R11/2
R11/2
Rp3/4
3/4
1 / 11.5 NPT
95x70
Ø40 (SGS 28)
Rp1 (SGS 30-60)
Condensate drain
On all SGS units 3 year warrranty is appliccable on the tank
and 1 year on all parts.
Solar
control
Storage
Tank
SGS
SGS
Dimensions SGS 80-100
A
C
2060
530
2060
530
D
E
F
850
1000
900
850
1000
900
G
H
Hx
Hy
K
M
N
Ny
P
130/200
2015
310
440
1855
225
2060
205
290
130/200
2015
310
440
1855
225
2060
205
290
R
225
225
S
W
1425
240
1425
240
1
2
3
4
5
6
7
Cold water connection
Hot water connection
Gas valve connection
Drain valve connection
Temperature and pressure valve
Inspection flange
R11/2
R11/2
Rp3/4
3/4
1 / 11.5 NPT
95x70
Rp1
Condensate drain
On all SGS units 3 year warrranty is appliccable on the tank
and 1 year on all parts.
Solar
control
Storage
Tank
SGS
SGS
Installation diagrams
Vented
1
2
3
4
5
6
9
Pressure reduce valve
Inlet security group
Temperature and pressure valve
Stop valve
Non-return valve
Circulation pump
Drain valve
10 Gas cock
11 Isolating valve
12 Temperature gauge
13 Condense drain
14 Hot water outlets
16 Expansion vessel
17 Three way valve
18 Water cistern
19 Float valve
23 Over pressure security group
26 Air bleed
37 Flowmeter
38 Pompmodule solar
S1 T-collector
Unvented
S2 T-tank
S3 T-top tank
S4 T-return solar
A
B
C
D
E
Cold water supply
Hot water outlet
Circulation pipe
Gas supply
Water overflow
Coil inlet
F
G
H
Coil outlet
Expansion pipe
SGS
Electrical diagram SGS 28-60
CoMPonEnTS ConTrollEr
CoMPonEnTS Solar ConTrollEr
AA Controller
BB Pump solar system (ON / OFF)
CC Pumps solar system (modulating)
DD Temperature sensor
A
B
C
D
E
Controller
Ionisation rod
Glow ignitor
Gas control
Burner earth connection
Extra ON-mode switch
Continuous pump
Program controlled pump
Extra error signal
Isolating transformer
Double-pole mains switch
On/Off switch control
Display
(S1 - solar collector)
F
EE Temperature sensor (S2 - tank)
FF Q/T-measuring (incl. temperature-
sensor S4 - return solar collector)
GG Controller (BUS-link)
G
H
J
K
L
M
N
O
P
HH Temperature sensor
(S3 - top tank)
F2 Fuse
Fan
Temperature sensor
(T2 - bottom of tank)
Dummy
ConnECTionS Solar ConTrollEr
1
Q
2
3
4
5
L
N
-
-
-
Power supply
R
Temperature sensor
(T1 - top of tank)
Selection resistor
Pressure switch
n.a.
n.a.
n.a.
S
T
U
6
Controller solarsystem (BUS-link)
7
8
9
10
Pump solar system
(ON / OFF)
L1
N
N
F1 Fuse
F3 Fuse
11 L2
Pump solar system
ConnECTionS Main ConTrollEr
12
13
14
15
16
17
18
19
20
-
(modulating)
1
2
3
X5
X6
-
BUS-link
-
-
-
-
-
-
-
1
2
3
4
1
2
n.a.
n.a.
n.a.
n.a.
n.a.
n.a.
n.a.
n.a.
n.a.
n.a.
4
-
5
6
X3
X4
External ON / OFF
7
8
9
10
L5
N
N
Continuous pump
n.a.
n.a.
n.a.
J3
11 L4
12
Program controlled pump
13 X2
14 X1
15
Power supply 5V
Sensor return
solar collector (S4)
Earth
Flow signal
n.a.
Extra error signal
J12
16
17 L2
18
N
3
4
1
2
3
4
1
2
3
4
1
2
1
2
1
2
3
Isolating transformer
(primary side)
19
20 L3
21
N
Sensor solar collector (S1)
n.a.
Isolating transformer
(secundary side)
J13
J14
Sensor solar collector (S1)
Sensor top tank (S3)
Sensor tank (S2)
Sensor top tank (S3)
Sensor tank (S2)
n.a.
22
23 L1
Power supply
24
N
J15
J16
n.a.
BUS-link
n.a.
n.a.
n.a.
J17
SGS
Electrical diagram SGS 80-100
CoMPonEnTS ConTrollEr
CoMPonEnTS Solar ConTrollEr
AA Control
BB Pump solar system (ON / OFF)
CC Pump solar system (modulating)
DD Temperature sensor
A
B
C
D
E
Control
Ionisation rod
Glow ignitor
Gas control
Burner earth connection
Program controlled pump
Continuous pump
Extra error signal
Isolating transformer
Double-pole mains switch
ON / OFF switch control
Display
(S1 - solarcollector)
F
EE Temperature sensor (S2 - tank)
FF Q/T-measuring (incl. temperature
sensor S4 - return solar collector)
GG Control (BUS-link)
G
H
J
K
L
M
N
O
HH Temperature sensor
(S3 - top tank)
Fan
F2 Fuse
Temperature sensor
(T2 - bottom of tank)
Dummy
ConnECTionS Solar ConTrollEr
P
1
Q
Temperature sensor
(T1 - top of tank)
Selection resistor
Pressure switch
2
3
4
5
L
N
-
-
-
Power supply
R
S
T
n.a
n.a
n.a
Potentiostat
6
U
V
W
X
Y
Z
Frequency controller
RS-485 interface
Electric anodes
Signaling for electric anodes
Mains choke and EMC-filter
Solar control system (BUS-link)
7
8
9
10
Pump solar system
(ON / OFF)
L1
N
N
11 L2
Pump solar system
(modulating)
12
13
14
15
16
17
18
19
20
-
F1 Fuse
F3 Fuse
-
-
-
-
-
-
-
1
2
3
4
1
2
n.a
n.a
n.a
n.a
n.a
n.a
n.a
n.a
ConnECTionS Main ConTrollEr
1
2
3
4
5
6
7
8
9
X5
X6
L5
N
BUS-link
Potentiostat
n.a
n.a
n.a
J3
L4
N
X3
X4
N
Frequency controller
External ON / OFF
Power supply 5V
Sensor return
solar collector (S4)
Earth
Flow signal
n.a
10
11 L3
12
13 X1
14 X2
15
16
17 L2
18
19
20 L1
21
J12
Program controlled pump
3
4
1
2
3
4
1
2
3
4
1
2
1
2
1
2
3
Extra error signal
Sensor solar collector (S1)
n.a
J13
J14
N
Sensor solar collector (S1)
Sensor top tank (S3)
Sensor tank (S2)
Sensor top tank (S3)
Sensor tank (S2)
n.a
Isolating transformer
(primary side)
N
Isolating transformer
(secundary side)
J15
J16
22
23
24
n.a
L
Power supply
BUS-link
N
n.a
n.a
n.a
J17
Flue systems SGS
A SGS water heater should be installed according category B23,
C13, C33, C43 or C53*.
Installation options
C13
Concentric
Diameter (mm)
Max. length (m)
Max. 45/90° bends
80/125
100/150 100/150 100/150 130/200 130/200
40
7
40
7
40
7
15
4
15
3
15
3
B23
Parallel (standard diameter)
Diameter (mm)
Max. length (m)
80
25
100
80
100
45
100
25
130
115
2,4
130
60
L
L
/bend 90° (m) 3,9
equivalent
/bend 45º (m) 1,1
equivalent
4,6
1,2
4,6
1,2
4,6
1,2
2,4
1,4
1,4
Parallel (larger diameter for more length)
Diameter (mm)
Max. length (m)
100
100
130
100
2,4
130
100
2,4
130
100
2,4
150
100
2,6
150
100
2,6
C33
L
L
/bend 90º (m) 4,6
equivalent
equivalent
/bend 45º (m) 1,2
1,4
1,4
1,4
1,6
1,6
*
All SGS are also approved for installations where the unit is supplied
without venting materials (C63).
Concentric flues
It is not permitted to use more than the specified number of
bends, even when the duct is shorter than the maximum
length. A 45° bend is equivalent to a 90° bend.
Parallel flues
- The maximum permissible length should be reduced by the
equivalent length of each bend. (Note: for a parallel installation
this means that 3 changes in direction amount to 6 bends
(3 in the supply duct and 3 in the flue).
- The maximum length also applies if a parallel installation has
different supply and flue duct lengths (B23, C53).
- Combined flues (C43) shall be fitted with a condensate drain.
C53
C43
Note: horizontal flue runs must be installed with a fall of at least
5 mm per metre.
Flue systems SGS
Minimum space requirements
Y
Ø80/125 Ø100/150 Ø100/150 Ø100/150 Ø130/200 Ø130/200
SGS 28-60
W
Minimal space for wall duct (mm)
V
V
550
550
550
550
640
640
V
Y
W
W
X
725
790
790
790
940
940
1630
1460
1010
2170
1480
1030
2170
1480
1030
2170
1480
1030
2230
1620
1170
2230
1620
1170
Y
Y *
X
X
Minimal space for roof duct (mm)
V
1305
680
1500
1035
3420
2470
1415
465
1500
1035
3420
2470
1415
465
1500
1035
3420
2470
1415
465
1730
1120
3620
2670
1560
610
1730
1120
3620
2670
1560
610
W
X
3060
2110
1575
625
SGS 80-100
Y
X **
Y
Z
T
Y **
Y
V
W
For the parts numbers of components and flue gas ducts, etc.
please refer to the “Maintenance and accessories” chapter.
X
X
*
Distance without concentric pipe between bend and wall duct.
** Distance without concentric pipe between appliance and roof duct.
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