CSG series Premix Gas CONDENSING wall-mounted

MADE IN ITALY
THE EXPERT of stainless
steel condensing
heating systems
ECO FRIEN
D LY
CSG series
Premix Gas
CONDENSING
wall-mounted boiler
stainless steel heat exchanger
316L STAINLESS STEEL
ASME APPROVED
HEAT EXCHANGER R.S.C.
Our Condensing boilers are completely designed, built and tested in
Cosmogas’s ASME manufacturing facility and are the fruit of our tenyear experience in the development of the stainless steel condensing boiler with pre-mixed air/gas burner combustion technology. The
primary heat exchanger made of stainless steel AISI 316L with Radial
Shared Circulation (R.S.C.), the air/gas modulation system “Cosmomix”, the secondary heat exchanger “Acquajet” for D.H.W. production with micro-tank system, the electronic control “Hydroplus”,
have been conceived, designed, patented and built for the purpose of
creating a range of condensing boilers that can be considered at the
very top of the market thanks to their efficiency, security and ecological performance. Inside components disposition is rational. Each component disposition has been studied to simplify and facilitate every
regulation and maintenance operation.
Condensing boilers series is composed of:
CSG-160-B: 160 kBtu/hr wall hung boiler (heating only)
CSG-160-C: 160 kBtu/hr wall hung combi boiler (heating and D.H.W
production)
R. S.C . •
1 st
COSMO
•
2
nd
PA
MIX
NT
TE
PA
TE
NT
THE RADIAL SHARED CIRCULATION
R.S.C. HEAT EXCHANGER
The primary patented heat exchanger with Radial
Shared Circulation R.S.C. is ASME approved and entirely built in stainless steel and is composed of a wet
combustion chamber and of a series of water tubes,
wrapped in spires of different diameters, connected
top and down to two collectors, which represent the
supply and return of the boiler. It can be combined
with heating installations, radiant panels, radiators,
fan-coils, etc.. It guarantees low pressure drops,
high efficiency and ease of maintenance.
COSMOMIX THE PATENTED
PREMIX SYSTEM
The innovative premix system used for gas condensing boilers allows an exceptional field of modulation with a ratio of 1:5.
THE RADIAL SHARED CIRCULATION (R.S.C.)
FLUES
180°F
149°F
131°F
149°F
158°F
210°F
390°F
113°F
113°F
113°F
113°F
1750°F
PREMIX
BURNER
1750°F
390°F
210°F
AIR
120°F
GAS
AC QU AJ
During the operation, the return water
splits into three circuits. The central
circuit and the intermediate one absorb
a large quantity of heat from the flues,
while the third circuit, the external
one, with the “cold” return water run-
ET
•
rd
3
ning through it, removes flues till their
condensation. The advantage of this
system lies in condensing with return
water temperatures of 131/134°F thus
obtaining very good efficiencies even
with radiator installations.
TE
PA
NT
ACQUAJET - D.H.W. PRODUCTION
PATENTED MICRO-TANK SYSTEM
The domestic hot water production relies on the
secondary heat exchanger with micro-tank. This
heat exchanger, built of finned copper and stainless steel, follows the Cosmogas philosophy: “a lot
of hot water at once and at a constant temperature”. The micro-tank can supply almost 4 gal/min
of water instantaneously at a constant temperature, managed by the HYDROPLUS control.
THE PREMIX
BURNER
The premix burner has a cylindrical shape and
is made of a special micromesh metal fiber
"Fecralloy" able to bear high temperatures. The
gas and air mixture is conveyed in a controlled
quantity into the burner which produces very low
and perfectly balanced flames. The gas and air
mixture flow is adjusted by a special electrovalve
which optimizes the combustion process, with high
efficiency and low CO and NOx emissions.
CSG
series
CSG condensing “combi” boiler package provides all of your hot water
needs. Its space saving wall-hung design provides high efficient space-heating of 93% AFUE as well as instantaneous domestic hot water production of
over 4 gallons per minute eliminates the need for an additional hot water
storage tank. All essential boiler components including the domestic hot
water coil, mounted and wired circulator pump and the expansion tank
are nearly enclosed in the CSG’s attractive sound attenuated cabinet. An
“On Board” electronic control platform built into the boiler cabinet allows
simple, yet effective control of both space-heating and domestic water
settings.
Two versions:
CSG-160-C = 30,000 to 160,000 Btu/hr fully modulating combi boiler (heating
and domestic hot water)
CSG-160-B = 30,000 to 160,000 Btu/hr fully modulating boiler (heating only).
Pre-mixed Condensing
Wall Hung Boilers
TECHNICAL DATA
U.M.
CSG
160-C
160-B
Nominal heat input (gross calorific value)
Btu/hr
160,000
Minimum heat input (gross calorific value)
Btu/hr
30,000
D.O.E. efficiency
%
93
Max efficiency at minimum heat input (122°F/86°F)
%
98
D.H.W. heat output
Btu/hr
142,400
Instantaneous D.H.W. production (75°F rise)
gal/min
4
-
Maximum heating temperature
°F
Maximum heating pressure
Psi
Maximum pressure of domestic hot water circuit
Psi
125
Capacity of expansion tank
gal
2.64
Nominal power supply voltage
Absorbed electric power
Flue gas pipes diameter (split) (polypropilene)
190
30
V/Hz
W
-
120/60
170
inch
90
3”
Flue gas pipes max. length (split) (polypropilene)
ft
300
Flue gas pipes diameter (coaxial) (polypropilene)
inch
2.36”/3.94”
Flue gas pipes max. length (coaxial) (polypropilene)
ft
70
Balanced CO contents (0% O2 with natural gas)
p.p.m.
15
Balanced NOx contents (0% O2 with natural gas)
p.p.m.
15
Dimensions WxDxH
inch
20” - 10” - 33”
Connections (supply - return - D.H.W. - D.C.W. - gas)
inch
3/4” - 3/4” - 3/4” - 3/4” - 3/4”
Weight
lb
100
80
DIMENSIONS AND CONNECTIONS
18,3”
10”
4,5”
33”
9,7”
1-AREA FOR POWER SUPPLY CABLE
2-HEATING SUPPLY CONNECTION (3/4”)
3-DOMESTIC HOT WATER CONNECTION (3/4”) (ABSENT IN
“B” VERSION)
4-GAS CONNECTION (3/4”)
5-DOMESTIC COLD WATER CONNECTION (3/4”) (ABSENT IN
“B” VERSION)
6-HEATING RETURN CONNECTION (3/4”)
7-POSITIONS FOR BOILER SUPPORT
8-FLUE DISCHARGE/AIR INTAKE CONNECTION
3,3”
2,2”
5,6”
2,8”
9,7”
2,3”
2,3”
2,3”
2,6”
3,6”
0,9”
19,7”
OPERATING SCHEME
3 4
3
2
23
5
6
24
7
1
29
25
10
11
8
9
13
12
26
28
27
14
15
18
19
16
20
21
22
30 17
1-BOILER
2-AUTOMATIC AIR VENT
3-COMBUSTION AIR INTAKE
4-FLUE GASES DISCHARGE
5-SEALED CHAMBER
6-EXPANSION TANK (ABSENT IN “B” VERSION)
7-BURNER
8-FAN
9-GAS VALVE
10-CONDENSATE DISCHARGE TRAP
11-CIRCULATOR PUMP (ABSENT IN “B” VERSION)
12-3-WAY VALVE (ABSENT IN “B” VERSION)
13-SECONDARY HEAT EXCHANGER (MINITANK) FOR D.H.W
(ABSENT IN “B” VERSION)
14-PRESSURE GAUGE
15-BY-PASS VALVE (ABSENT IN “B” VERSION)
16-SAFETY RELIEF VALVE
17-CONDENSING DISCHARGE
18-HEATING SUPPLY
19-DOMESTIC HOT WATER OUTLET (ABSENT IN “B” VERSION)
20-GAS SUPPLY
21-COLD WATER INLET (ABSENT IN “B” VERSION)
22-HEATING RETURN
23-FLUE GAS TEMPERATURE SENSOR
24-BOILER TEMPERATURE SENSOR
25-SAFETY TEMPERATURE SENSOR
26-MINITANK SENSOR (ABSENT IN “B” VERSION)
27-DOMESTIC HOT WATER TEMPERATURE SENSOR (ABSENT IN
“B” VERSION)
28-RETURN TEMPERATURE SENSOR
29-FLUE PRESSURE SWITCH
30-SAFETY RELIEF VALVE DISCHARGE
NOTES
NOTES
EU
USA
USA
AUTHORIZED DEALER
Canada
COSMOGAS srl • Via L. da Vinci, 16 • 47014 MELDOLA (FC) ITALY • Tel. +39 0543.49.83.70 • Fax +39 0543.49.83.92
www.cosmogas.com • [email protected]
62401232 - Gennaio 2013 - WITH THE AIM OF CONSTANTLY DEVELOPING AND IMPROVING IT’S PRODUCTS, COSMOGAS RESERVES THE RIGHT TO MODIFY, UPDATE AND IMPROVE, AT ANY TIME, THIS FOLDER.
Massimiliano Pieraccini
COSMOGAS International Certifications