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Pagina 1
caring for the environment
GA and AY product line
Gas fired absorption chillers and chillers-heaters
Natural gas/LPG fired
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Pagina 2
Robur turns the love for beauty and well-made things
into innovative heating and cooling systems
that are especially designed and developed to answer
the specific customer needs.
Robur Vision
Robur is dedicated to dynamic progression
in research, development and promotion
of safe, environmentally-friendly, energy-efficient products,
through the commitment and caring
of its employees and partners.
Robur Mission
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Robur, founded in 1956, researches, develops and produces natural
gas heating and air conditioning systems with high efficiency and
low environmental impact.
An exclusive feature of Robur products is their use of renewable
energy sources, meaning that less pollutants are released into the
atmosphere and that notable energy savings are guaranteed.
Robur key values
Innovation
in researching and developing technologically advanced products
and in offering qualified services, directed towards total customer
satisfaction
Corporate social responsibility and industrial vocation
in developing and manufacturing safe, environmentally-friendly and
energy-efficient products
Value of human resources
in involving all of its human resources, both inside and outside the
company, through constant training and sharing of vision, strategy
and objectives
Testimony
“Robur wants to be a workplace
stimulated by Progress, sustained by Passion,
enlivened by Humanity, guided by Justice,
guaranteed by Quality, inspired by Beauty”
Robur figures
36
million Euro of sales in 2005
249
employees
7%
ongoing investment in Research & Development
AWARDS and RECOGNITION
1995
ISO 9001 certification
2000
1st Prize in the REGIONAL QUALITY AWARD
2001
First in Europe to obtain the ISO 9001:2000 certification
(Vision 2000), in the heating and cooling sector.
1st Prize NATIONAL QUALITY AWARD
2003
Special Prize Winner del “European Quality Award”
The Gas Absorption Heat Pumps were included in the group
of "recommended designs" of the "ENVIRONMENTALLY
FRIENDLY INNOVATION AWARD”
Robur, with its reversible gas absorption heat pump
GAHP-AR, claimed the Technological Innovation Award
2004
Benito Guerra, president of Robur S.p.A., has received a
nomination as finalist in the “Quality of life” category of the
National Businessman of the Year, promoted by Ernst &
Young.
2005
ISO 14001: 2004 certification
Gas fired heaters K and the gas absorption heat pump
GAHP-W won the honourable mention of the HVAC&R
Innovation Preize sponsored by Costruire Impianti
2006
Honourable mention at AHR Expo Innovation sponsored by
ASHRAE (American Society of Heating, Refrigerating and
Air-Conditioning Engineers - USA)
3
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More than 360,000 Robur GA units are in operation around the world, using the
innovative technology of gas-fired water-ammonia absorption.
Gas fired absorption chillers and chillers-heaters
fired by natural gas/LPG
4
Robur's GA units are
and are powered by natural gas
either simultaneously or
that are hydraulically piped and
highly-efficient, single packaged
or LPG burner in a totally sealed
alternately, chilled water
electrically wired and mounted
water chillers with air-cooled
circuit, to produce chilled water
down to 3 °C and hot water
on a single frame, so as to
condensers, for outdoor
down to a temperature of 3 °C.
up to 85 °C.
provide a chiller group system
installations.
The chiller units can also be
GA chiller units (ACF Serie) and
(RTCF Serie) or chiller-heater
They use an absorption-based
manufactured with an
chiller-heater units (AYF Serie)
group systems (RTYF Serie).
cooling cycle with a natural
integrated heating module
are available in both single and
solution of water and ammonia,
(chiller-heater units) to supply,
factory assembled systems
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GA product line
Energy efficiency, reduced running costs, flexibility and modularity are the
great advantages of the Robur GA units, for an all-in-one solution able to fit
to all heating and cooling requirements.
The complete answer to every demand
For hotels and restaurants
For tourist centres
For banks and insurance
For hospitals and clinics
Complete service.
Complete flexibility.
companies
Integration into existing chilled
Heating, air conditioning and
Modular for capacity control.
Guaranted long life Efficiency.
water system, increasing
hot water for sanitary uses,
With the Robur units it is
The Robur units do not use a
existing installation capacity
with just one unit and the same
possible to install a modular
compressor for air conditioning
without increasing overall
plant.
system, for both heating and
and have only 2 mechanical
electrical site demand.
The High Efficiency Robur units
cooling, only for the areas which
parts in motion. So that what
Robur units can regenerate the
could be supplied as air
require it, using the capacity
does not exist can not be broken
reduced cooling capacity of old
conditioning units only.
required to respond to the
or incur wear.
traditional chiller systems in
existing installations. They offer
different seasonal and ambient
the facility to expand capacity
thermal conditions.
For shopping malls
For domestic use
due to changes in both climatic
Less electrical energy
Minimal running costs.
conditions and increased
demand.
consumption. The Robur units
For exhibition areas
Use of natural gas for cooling.
reduce 88% of the electrical
Use all technical areas.
GA units require just 2.65 m3/h
energy consumption compared
Robur units do not require any
of natural gas and 0.82 kW of
to traditional electric systems.
specific plant room, because
single phase electrical energy to
Does not require the additional
they are installed externally.
produce 17.72 kW of cooling
energy supply, therefore it is not
This permits more rational use
capacity.
necessary to build an electrical
of the internal building areas.
substation.
5
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Natural gas for the best ratio between the energy provided and energy consumed,
with total respect for the world we live in.
Maximum efficiency with minimum environmental impact
Technical innovation
Natural gas/LPG instead of
Water and ammonia as natural
Silence efficiency
and high efficiency
electricity: a right choice
refrigerants
The containment of the noise
are the basis of the High
Using a gas burner, Robur GA
The water is the absorption fluid
level is guaranteed by the
Efficiency Robur Units.
unit can reduce up to 88% of the
and ammonia is the refrigerant.
absence of the compressor
• Natural Gas or LPG, the clean
electrical energy consumption
Ammonia diluted into the water
and by an electronically
source of energy for heating
compared to traditional electric
is absolutely safe and in
controlled condenser fan, the
and air conditioning.
system. Therefore it is not
comparison with other
rotation of which reduces as the
request any extra electrical
refrigerants has the following
function of the external ambient
elements for cooling
energy and, in the case of
advantages:
temperature (under 33 °C).
production.
replacement of an obsolete
• is not the subject of any
This further reduces the electic
• Water and ammonia, natural
• Modular installation,
electrical system, the electrical
international limit regarding the
guarantee for operation with
energy can be used for other
protection of the ozone layer;
reduced liability.
purposes.
• Stable thermodynamic cycle
that takes advantage of all
potential heat recovery.
That permit to keep running
costs to the minimum.
• does not provoke the
green-house effect;
• it is used in thousands of
refrigeration appliances;
• its thermodynamic
performances are among the
best compared to the other
fluids, both natural and synthetic.
6
supply consumption.
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GA product line
A perfect combination of equipment design and manufacture, Robur’s
high-efficiency GA units provide total reliability thanks to a wide range of
applications.
Total reliability
Wide application solution and
Microprocessor-based
Operation even in extreme
Efficiency guaranteed over time.
easy installing.
control system.
outdoor temperatures.
Thanks to a hermetically sealed
Thanks to the wide range of
Makes possible control, settings
The manufacturing
absorption refrigeration system
types and capacities it is
and operating parameters and
characteristics of the Robur GA
using only few moving parts
possible to make different plant
alarms visualisation on the
units are such that stable
(no mechanical refrigeration
solutions. The installations
dedicated display.
operation is guaranteed even
compressor), Robur GA units
require only simple connections.
The display may show:
in extreme temperature
maintain the same performance
• dirty condenser coil or the
conditions making them suitable
over time and do not require any
for all climates and operating
replacement of the refrigerant
conditions.
fluid due to loss during servicing.
respective fan block;
• not ignition of the burner;
• reduction of water flow;
By consequence it is not
• water temperature set point
necessary to over-size the
exceeding.
cooling capacity because there
is no efficiency loss during the
operating lifespan.
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Pagina 8
GA product line
The strength of Robur GA high-efficiency water chillers: a flame that heats and
cools.
Inside the technology
condenser
absorber
evaporator
pipe in pipe
generator
absorber/pre assorber
rectifier
burner
GA gb
solution pump
weak solution
8
strong solution
refrigerant vapour
refrigerant liquid
cold water
The flame that heats and cools.
Then it is piped to the heat
external circuit by absorbing its
cycle of operation of the
This apparent paradox has a
exchanger, where cooled by the
heat and then evaporates again.
appliance: the ammonia vapor
precise scientific explanation.
temperature of the external air
The ammonia is further piped
is absorbed by the water to the
In the Robur GA the ammonia
flow it condenses to a liquid.
into the absorber where it meets
initial liquid solution to
water solution is heated by the
The obtained liquid of ammonia
the water which remained after
the generator for the cycle
gas burner in the generator;
expands in the further heat
the separation in the generator.
to restart again.
the ammonia evaporates and
exchanger (evaporator) where it
Here occurs the absorption,
separates from the water.
cools the water from the
the process which named the
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GA and AY product lines
The Types
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GA and AY product lines
The Types
Cooling
Heating
Process application
Tropical zone
Gas fired absorption chiller
Outdoor modular gas fired
Gas fired absorption chiller
Gas fired absorption chiller
thermal links AY and Multi AY.
GA product line
GA product line
Cooling output from 17.72 to
Heating output
ACF-TK and RTCF-TK.
ACF-HT and RTCF-HT.
88.6 kW.
from 32.5 to 162.5 kW.
Cooling output
Cooling output
Available in the following
from 17.72 to 88.6 kW.
from 17.12 to 85.6 kW.
versions:
versions:
Available in the following
Available in the following
• standard (also CC version,
• SC without circulating pumps;
versions:
versions:
• CC with independent
• TK standard;
• HT standard;
GA product line ACF and RTCF.
Available in the following
with independent pumps);
• TK-S low noise;
• HT-S low noise;
• I casing in stainless steel;
• TK-I casing in stainless steel;
• HT-I casing in stainless steel;
• S-I low noise and with casing
• TK-S-I low noise and with
• HT-S-I low noise and with
casing in stainless steel.
casing in stainless steel.
• S low noise;
in stainless steel.
circulating pumps.
Cooling with heat recovery
Gas fired absorption
chiller-heaters GA product line
ACF-HR.
Gas fired absorption
Gas fired absorption
Cooling output: 17.72 kW.
chiller-heaters GA product line
chiller-heaters GA product line
chiller-heaters GA product line
Heating output recuperator:
AYF-TK and RTYF-TK.
AYF-HT and RTYF-HT.
AYF and RTYF.
24.9 kW.
Cooling output
Cooling output
Available in the following
from 17.72 to 70.88 kW.
from 17.12 to 68.48 kW.
from 17.72 to 70.88 kW.
versions:
Heating output
Heating output
Heating output
Cooling and Heating
Gas fired absorption
Cooling output
• HR standard;
from 32.5 to 130 kW.
from 32.5 to 130 kW.
from 32.5 to 130 kW.
• HR-S low noise;
Available in the following
Available in the following
Available in 2 or 4 pipe versions:
• HR-I casing in stainless steel;
versions:
versions:
• HR-S-I low noise and with
• TK standard 2 or 4 pipe (AYF);
• HT standard 2 or 4 pipe (AYF);
• TK-S low noise;
• HT-S low noise;
• I casing in stainless steel;
• TK-I casing in stainless steel;
• HT-I casing in stainless steel;
• S-I low noise and with casing in
• TK-S-I low noise and with
• HT-S-I low noise and with
casing in stainless steel.
casing in stainless steel.
• standard;
• S low noise;
stainless steel.
casing in stainless steel.
Refrigeration
Gas fired absorption chiller
GA product line
ACF-LB and RTCF-LB.
Cooling output
from 13.3 to 66.5 kW.
Available in the following
versions:
• LB standard;
• LB-S low noise;
• LB-I casing in stainless steel;
• LB-S-I low noise and with
casing in stainless steel.
RTYF 180-238 model
10
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GA and AY product lines
Technical characteristics
ACF cooling module
• Premixing multi-gas burner
Single packaged, air cooled,
equipped with ignition and flate
water chiller for outdoor
sensor device managed by
installation. Absorption-based
electronic flate box.
refrigerant cycle using an
• Condenser axial fan with
- high temperature limit Switch:
located at the generator with
manual reset;
- antifreeze thermostat;
- differential flue pressure
environmentally-friendly mixed
electronically controlled speed
switch: on the combustion
solution of water and ammonia,
as the function of the external
circuit for the control of the
ambient temperature.
correct evacuation of the
running on natural gas or LPG.
The unit is supplied
• Control and safety devices:
complete with:
- water flow switch;
• Refrigerant circuit
- safety valve at the refrigerant
manufactured in low-carbon
steel externally coated with
circuit;
- by-pass valve between high
epoxy polyester paint.
Heating module AY
Outdoor heating module for
the production of hot water.
and low pressure circuits;
• Exhaust gas flue with external
terminal.
• Integrated control and safety
The module consists of:
components:
• Thermally insulated
- ionisation-based central
combustion products;
- double shutter electric gas
valve;
- electronic boards with unit
control and self-diagnostic
function.
set at 3 bar;
- differential pressure stat on
water circuit;
- hot water regulation
thermostat;
combustion chamber for
electronic burner ignition and
- antifreeze thermostat;
outdoor installation.
flame control unit;
- high limit temperature
• Premixing multi-gas burner
- high limit temperature
with low NOx and CO
emissions.
thermostat on heat exchanger;
- safety valve for water system,
HEATING MODULE CHARACTERISTICS
ACF 60-00 Model
thermostat for combustion
exhaust gases.
ACF 00-119 Model
Values
Thermal efficiency when nominal power used
92.5 %
Thermal efficiency when 30% of nominal power used
92.0 %
Thermal loses on the flue when burner is on
6.5 %
Thermal loses on the flue when burner is off
0.4 %
Thermal loses of the generator case
0.6 %
11
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Single packaged, air-cooled, gas absorption water chillers (ACF and RTCF
Series) for the production of chilled water down to 3 °C.
GA product line
Cooling
RTCF 300-00 Model
12
The RTCF are composed by 2,
electrically wired. The RTCF
and the control safety devices of
3, 4 or 5 chillers ACF 60-00,
units are complete with an
each module are the same as
mounted on the steel support
electric control box and
the basic chiller models.
frame, already assembled,
supplied with a DDC device.
hydraulically piped and
The constructive characteristics,
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ACF - RTCF Types
GA product line
ACF
RTCF RTCF RTCF RTCF
60-00 120-00 180-00 240-00 300-00
OPERATION IN COOLING MODE
Heating input
kW
25.03
50.06
75.09
Nominal cooling capacity (1)
kW
17.72
35.44
53.16
70.88
88.60
Nominal water flow rate
l/h
2770
5470
8310
11080
13850
Pressure drop (2)
Gas consumption
100.12 125.15
kPa
28
natural gas (3)
m3/h
2.65
5.30
7.95
30
10.60
13.25
LPG (4)
kg/h
1.94
3.88
5.82
7.76
9.70
Sound pressure level at a distance of 5 m (5) (6)
standard version
low noise version
maximum
dB (A)
57
58
60
61
62
minimum
dB (A)
47
50
52
53
54
maximum
dB (A)
52
53
55
56
57
minimum
dB (A)
45
48
50
51
52
59
Sound pressure level at 10 m (5) (6)
standard version
low noise version
maximum
dB (A)
54
55
57
58
minimum
dB (A)
45
48
50
51
52
maximum
dB (A)
49
50
52
53
54
minimum
dB (A)
44
47
49
50
51
ELECTRICAL DATA
230 V - 50 Hz
single-phase
400 V - 50 Hz three-phase
or 230 V - 50 Hz single-phase
standard version
kW
0.82
1.64
2.46
3.28
4.10
low noise version
kW
0.87
1.74
2.61
3.48
4.35
Weight (when operating)
kg
340
820
1.270
1.700
2.120
Outside temperature operating range
°C
4905
6490
Required voltage
Nominal electrical power (7)
INSTALLATION DATA
Connections
Dimensions
0/45
water pipes
”
11/4 F
2M
gas pipes
”F
3/4
11/2
width
mm
850
depth
mm
1230
2315
3610
1240
height (8)
mm
1290
1400
COOLING CAPACITY CORRECTION FACTORS
Outside air temperature (°C)
Outlet water
temperature (°C)
0
5
10
15
20
25
30
35
40
45
3
0.98
0.98
0.98
0.98
0.98
0.97
0.90
--
--
--
5
0.99
0.99
0.99
0.99
0.99
0.99
0.98
0.87
--
--
7
1.01
1.01
1.01
1.01
1.01
1.01
1.01
1.00
0.88
0.67
9
1.03
1.03
1.03
1.03
1.03
1.03
1.03
1.02
0.93
0.78
Cooling capacity correction factors to be applied according to variations in outlet water temperature and outside air temperature.
(1)
Characteristics under nominal conditions: outside air temperature 35 °C - outlet water
7.2 °C - inlet water 12.7 °C.
(2) At nominal water flow rate.
(3) Lower heating value 34.02 MJ/m3 (9.45 kWh/m3) at 15 °C - 1013 mbar.
(4) Lower heating value 46.34 MJ/kg (12.87 kWh/kg) at 15 °C - 1013 mbar.
(5) Taking into account reduced fan speed (air flow rate) at outside air temperatures below 33 °C.
This allows a further reduction in electricity consumption.
(6) Noise source resting on noise-reflecting surface.
(7) ±10% tolerance to allow for different electrical voltage and power absorption of the
electrical motors.
(8) The height of units in the reduced noise version is 250 mm greater than that of the
standard units illustrated.
Notes: All models are available in low noise versions and with casing in stainless steel.
The RTCF models can also be supplied in a version with water circulating pump (RTCF-CC
Version).
Due to continuous product innovation and development, Robur reserves the right to
change product specifications without prior notice.
13
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Outdoor heating module, for the production of hot water up to 85 °C.
AY product line
Heating
14
These modules can be
standard with a Direct Digital
They are available in two plant
The use of Multi AY modules
mechanically and electrically
Control device that allows total
configurations:
offers advantages from an
interlinked to form a single
remote control.
• Multi AY-SC group without
energy and plant perspective:
heating package for outdoor.
The Direct Digital Control serves
circulating pumps.
They do not require protection
also as an active antifreeze
The modules are connected in
space as they are suitable for
from adverse weather
system that is able to activate
parallel on the main manifolds
outdoor installation.
conditions. They are supplied in
the circulation pumps and, if
of the group without circulation
Hence no need for boiler
heating capacities of 32,5 to
required, the heating module,
162.5 kW, with sequence
automatically. Multi AY modules
operation.
can produce hot water suitable
independent circulating
They are factory-assembled on
for heating, sanitary purpose,
pumps. Supplied with water
a single steel base frame to
process applications, etc.
circulating pumps as standard,
output to meet all on-going
form a modular outdoor central
connected to the main
requirements;
heating plant.
manifolds of the group, thus
The modules are supplied
creating a primary circuit with
thanks to the independent
complete with an electrical
variable water flow and
operation of the modules.
panel and are equipped as
providing hot water up to 85 °C.
pump.
• Multi AY-CC group with
• they do not require interior
rooms or weather protection;
• nominal combustion efficiency
of 92.5%;
• staging up/down of heating
• guaranteed performance,
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AY and Multi AY Types
AY product line
MULTI AY SC MODELS - WITHOUT CIRCULATING PUMPS
AY
Multi AY
00-119 238 SC 357 SC 476 SC 595 SC
OPERATION IN HEATING MODE
Heating input
kW
34.8
69.6
104.4
139.2
Nominal heating capacity (1)
kW
32.5
65.0
97.5
130.0
162.5
Nominal water flow rate
l/h
2000
4000
6000
8000
10000
m3/h
3.68
7.36
11.04
14.72
18.40
kg/h
2.71
5.42
8.13
10.84
13.55
Gas consumption
natural gas (2)
LPG
(3)
Nominal pressure drop
kPa
174.0
24
ELECTRICAL DATA
230 V - 50 Hz
single-phase
400 V - 50 Hz three-phase
or 230 V - 50 Hz single-phase
kW
0.06
0.12
0.18
0.24
0.30
Weight (when operating)
kg
100
335
475
598
775
Outside temperature operating range
°C
Required voltage
Nominal electrical power
(4)
INSTALLATION DATA
Connections
Dimensions
-20/45
water pipes
”
11/4 F
2M
gas pipes
”
3/4 M
11/2 F
width
mm
390
depth
mm
1230
height
mm
1290
1245
2315
3170
3610
4905
1382
MULTI AY CC MODELS - EQUIPPED WITH INDEPENDENT CIRCULATING PUMPS
Multi AY
238 CC 357 CC 476 CC 595 CC
OPERATION IN HEATING MODE
Heating input
kW
69.6
104.4
139.2
174.0
Nominal heating capacity (1)
kW
65.0
97.5
130.0
162.5
10000
Nominal water flow rate
Gas consumption
l/h
4000
6000
8000
natural gas (2)
m3/h
7.36
11.04
14.72
18.40
LPG (3)
kg/h
5.42
8.13
10.84
13.55
ELECTRICAL DATA
400 V - 50 HzHz three-phase
o 230 V - 50 Hz single-phase
Required voltage
Nominal electrical power (4)(5)
kW
0.36
0.54
0.72
0.90
Weight (when operating)
kg
340
483
608
788
Outside temperature operating range
°C
INSTALLATION DATA
Connections
Dimensions
(1)
(2)
(3)
(4)
(5)
-20/45
water pipes
”M
2
gas pipes
”F
11/2
width
mm
depth
mm
height
mm
1245
2315
3170
3610
4905
1382
Characteristics under nominal conditions: outlet water 80 °C - inlet water 66 °C.
Lower heating value 34.02 MJ/m3 (9.45 kWh/m3) at 15 °C - 1013 mbar.
Lower heating value 46.34 MJ/kg (12.87 kWh/kg) at 15 °C - 1013 mbar.
±10% tolerance to allow for different electrical voltage and power absorption of the
electrical motors.
Electrical power including electrical power absorbed by circulating pumps fitted as
standard.
Due to continuous product innovation and development, Robur reserves the right to
change product specifications without prior notice.
Multi AY 595-CC Model
15
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Pagina 16
ACF-HT - RTCF-HT Serie
Single packaged, air-cooled, externally-installed water chiller-heater groups
(AYF and RTYF Types) for the production of chilled water down to 3 °C and hot
water up to 85 °C.
GA product line
Heating and cooling
AYF 60-119 Model
16
AYF units are also manufactured
chilled water by way of a single
customer requirements.
sizes, with varying combinations
in a factory-assembled modular
packaged, factory assembled
In this way, substantial energy
of capacity and in 2 and 4- pipe
group (RTYF) and are available
unit. RTYF groups consist of
benefits are gained during both
versions.
in 4-pipe and 2-pipes versions
ACF chillers and AY heating
winter heating and summer
RTYF groups are equipped as
for the simultaneous or
modules mounted on a single
cooling periods. The group is
standard with a Direct Digital
alternate production of hot and
steel baseframe and wired
installed outdoors, with no need
Controller for monitoring and
cold water. They can also be
electrically and hydraulically
for weather protection, thus
control.
supplied in a low-noise version.
piped in the factory so as to
eliminating any requirement for
RTYF chiller-heater groups are
form a system able to supply
internal plant room space.
designed to provide hot and
heating and cooling as
The groups are available in nine
GA gb
14-02-2006
12:23
Pagina 17
AYF - RTYF Types
GA product line
VERSION /2: for the alternate production of cold and hot water.
VERSION /4: for the simultaneous production of cold and hot water.
OPERATION IN COOLING MODE
AYF
60-119
/2/4
RTYF
RTYF
RTYF
RTYF
RTYF
RTYF
RTYF
RTYF
RTYF
120-119 120-238 180-119 180-238 180-357 240-119 240-238 240-357 240-476
/2/4
/2/4
/2/4
/2/4
/2/4
/2/4
/2/4
/2/4
/2/4
Heating input
kW
25.03
50.06
50.06
75.09
75.09
75.09
Nominal cooling capacity (1)
kW
17.72
35.44
35.44
53.16
53.16
53.16
70.88
70.88
70.88
70.88
Nominal water flow rate
l/h
2770
5540
5540
8310
8310
8310
11080
11080
11080
11080
Pressure drop (2)
Gas consumption (9)
100.12 100.12 100.12 100.12
kPa
28
natural gas (3)
m3/h
2.65
5.30
5.30
7.95
7.95
7.95
30
10.60
10.60
10.60
10.60
LPG (4)
kg/h
1.94
3.88
3.88
5.82
5.82
5.82
7.76
7.76
7.76
7.76
Sound pressure level at 5 m (5) (6)
standard version
low noise version
maximum
dB (A)
57
58
58
60
60
60
61
61
61
61
minimum
dB (A)
47
50
50
52
52
52
53
53
53
53
maximum
dB (A)
52
53
53
55
55
55
56
56
56
56
minimum
dB (A)
45
48
48
50
50
50
51
51
51
51
58
Sound pressure level at 10 m (5) (6)
standard version
low noise version
maximum
dB (A)
54
55
55
57
57
57
58
58
58
minimum
dB (A)
45
48
48
50
50
50
51
51
51
51
maximum
dB (A)
49
50
50
52
52
52
53
53
53
53
minimum
dB (A)
44
47
47
49
49
49
50
50
50
50
OPERATION IN HEATING MODE
Heating input
kW
34.8
34.8
69.6
34.8
69.6
104.4
34.8
69.6
104.4
139.2
Nominal heating capacity
kW
32.5
32.5
65.0
32.5
65.0
97.5
32.5
65.0
97.5
130.0
11080
Nominal water
flow rate
Gas consumption (9)
2 pipes
l/h
2770
5540
5540
8310
8310
8310
11080
11080
11080
4 pipes
l/h
2000
2000
4000
2000
4000
6000
2000
4000
6000
8000
natural gas (3)
m3/h
3.68
3.68
7.36
3.68
7.36
11.04
3.68
7.36
11.04
14.72
LPG (4)
kg/h
2.71
2.71
5.42
2.71
5.42
8.13
2.71
5.42
8.13
10.84
ELECTRICAL DATA
Required voltage
Nominal
electrical power
230 V - 50 Hz single-phase
400 V - 50 Hz three-phase or 230 V - 50 Hz single-phase
cooling (7) (9)
kW
0.82
1.64
1.64
2.46
2.46
2.46
3.28
3.28
3.28
3.28
heating (7) (9)
kW
0.06
0.06
0.12
0.06
0.12
0.18
0.06
0.12
0.18
0.24
INSTALLATION DATA
Weight
(when operating)
2 pipes
kg
430
1060
1170
1495
1605
1715
1950
2060
2170
2285
4 pipes
kg
430
1110
1220
1595
1705
1815
2100
2210
2280
2435
6490
6490
6490
6490
Outside operating temperature range
cooling
°C
0/45
heating
°C
-20/45
”
11/4 F
2M
2 pipes
”M
3/4
11/2
Water connections
Gas connections
Dimensions
(1)
4 pipes
”M
3/4
width
mm
1240
depth
mm
1230
1240
height (8)
mm
1290
1400
Characteristics under nominal conditions: outside air temperature 35 °C outlet water 7.2 °C - inlet water 12.7 °C.
(2) At nominal water flow rate.
(3) Lower heating value 34.02 MJ/m3 (9.45 kWh/m3) at 15 °C - 1013 mbar.
(4) Lower heating value 46.34 MJ/kg (12.87 kWh/kg) at 15 °C - 1013 mbar.
(5) Taking into account reduced fan speed (air flow rate) at outside air temperatures below 33 °C.
This allows a further reduction in electricity consumption.
(6) Noise source resting on noise-reflecting surface.
(7) ±10% tolerance to allow for different electrical voltage and power absorption of the
electrical motors.
(8) The height of units in the low noise version is 250 mm greater than that of the standard
units illustrated.
(9) For 4-pipe RTYF units, gas and electricity consumption must be added together when
using cooling and heating simultaneously.
2
3610
3610
4905
4905
4905
Notes: All models are supplied without a water circulation pump. The chiller-heater
groups are also available in a low-noise version and with casing in stainless steel.
For the correction factors to be applied according to variation in outlet water temperature
and external air temperature, see the table on page 13.
Due to continuous product innovation and development, Robur reserves the right to
change product specifications without prior notice.
17
GA gb
14-02-2006
12:23
Pagina 18
GA product line HR Version water chillers are absorption-based air-cooled units
running on natural gas or LPG and equipped with an exchanger for the recovery of
heat while cooling. This unit produces chilled water down to 3 °C and,
simultaneously and at no extra cost, hot water up to 80 °C.
GA product line HR Version
Cooling with heat recovery
ACF-HR Model
The GA-HR chiller has natural
transferred to the external
produced by recovering part of
heating circuits in air
gas/LPG-based absorption
environment via the
the heat generated in the
conditioning plants.
cooling circuit and can operate
air-cooled condenser and
absorber/condenser via a tube
This heat recovery
independently as chiller only or
absorber.
bundle heat exchanger.
function does not interfere
Thus it is possible to meet
with the normal cooling
in cooling + heat recovery
18
• During operation in chiller +
mode.
heat recovery mode, in
cooling and certain heating
capacity and operation of
• During operation as a chiller
addition to the production of
requirements at the same
the unit. When heat recovery
only, the heat taken from the
chilled water for the cooling
time, such as the need for
is not required, the unit
environment cooled is
plant, hot water is also
hot sanitary water or for
operates as a chiller only.
GA gb
14-02-2006
12:23
Pagina 19
ACF-HR Types
GA product line - HR Version
GA-HR units are ideal for those applications where not only water chilling, but
also water heating is required. Some expample: sanitary water applications, air
handling units, post-heating circuits and any other applications requiring hot
water up to 80 °C.
ACF
60-00
HR
OPERATION IN COOLING MODE
Heating input
kW
25.03
chilling only (1)
kW
17.72
chilling and recovery (2)
kW
17.93
Nominal water flow rate
l/h
2770
Pressure drop (3)
kPa
28
natural gas (4)
m3/h
2.65
LPG (5)
kg/h
1.94
57
Cooling capacity
Gas consumption
Sound pressure level at 5 m (6) (7)
standard version
low noise version
maximum
dB (A)
minimum
dB (A)
47
maximum
dB (A)
52
minimum
dB (A)
45
Sound pressure level at 10 m (6) (7)
standard version
low noise version
maximum
dB (A)
54
minimum
dB (A)
45
maximum
dB (A)
49
minimum
dB (A)
44
OPERATION IN HEAT RECOVERY MODE
Heating capacity (8)
kW
24,9
Nominal hot water flow rate
l/h
2150
maximum
°C
80
minimum
°C
10
°C
80
maximum
l/h
2500
minimum
l/h
0
Hot water
inlet temperature
Maximum hot water outlet temperature
Hot water flow rate
ELECTRICAL DATA
Required voltage
Nominal electrical
power (9)
230 V - 50 Hz single-phase
standard version
kW
0.82
low noise version
kW
0.87
INSTALLATION DATA
Weight (when operating)
kg
360
Outside temperature operating range
°C
0/45
water pipes
”F
1 1/4
gas pipes
”F
3/4
width
mm
850
depth
mm
1230
height (10)
mm
1290
Connections
Dimensions
(1)
Characteristics under nominal conditions: outside air temperature 35 °C - outlet water
7.2 °C - inlet water 12.7 °C.
(2) Characteristics under nominal conditions: outside air temperature 35 °C - outlet water
7.2 °C - inlet water 12.8 °C.
(3) At nominal water flow rate.
(4) Lower heating value 34.02 MJ/m3 (9.45 kWh/m3) at 15 °C - 1013 mbar.
(5) Lower heating value 46.34 MJ/kg (12.87 kWh/kg) at 15 °C - 1013 mbar.
(6) Taking into account reduced fan speed (air flow rate) at outside air temperatures below
33 °C. This allows a further reduction in electricity consumption.
(7) Noise source resting on noise-reflecting surface.
(8) Temperature or outlet water supplied while operating in cooling mode: 50 °C.
(9)
±10% tolerance to allow for different electrical voltage and power absorption of the
electrical motors.
(10) The height of units in the low noise version is 250 mm greater than that of the standard
units illustrated.
Notes: Models do not include a water circulation pump.
Available also in reduced noise versions and with casing in stainless steel.
Due to continuous product innovation and development, Robur reserves the right to
change product specifications without prior notice.
19
GA gb
14-02-2006
12:23
Pagina 20
GA product line TK Version water chillers are absorption-based units running on
natural gas or LPG that are designed for all year round operation and are aimed
at applications where, irrespective of outside ambient conditions, there is a
continuous cooling requirement.
GA product line TK Version
Process applications
GA-TK units have been designed
hot water and are manufactured
available in a 4-pipe version for
and built taking into account an
in 16 models from 17.72
the simultaneous production of
a Refrigerant Volume Variator
extremely wide range of
to 88.6 kW (cooling) and from
hot and cold water and in a
for greater average seasonal
potential operating conditions:
32.5 to 130 kW (heating).
2-pipe version for alternate hot
efficiency;
• Operating range - ambient air
They are available in 4 versions:
and cold water production. The
• TK standard;
manufacturing characteristics of
• TK-S (low noise);
these units are the same as
• TK-I casing in stainless steel;
those of the ACF 60-00 units,
• TK-S-I (low noise and with
but with some special features:
parameters set for specific
casing in stainless steel).
• refrigerant load optimised for
usage.
temperature: -12 °C/45 °C.
• Minimum inlet water
temperature: 3 °C.
The units can also be supplied
with an integrated heating
module, for the production of
20
The AYF 60-119 TK unit is
year-round operation;
• sealed circuit equipped with
• upgraded oil pressure pump,
to ensure maximum
performance and reliability;
• microprocessor control
GA gb
14-02-2006
13:09
Pagina 21
GA product line - TK Version
Typical applications.
Where it is necessary to cool moulds, machines, tools and equipment.
Cooling of rooms at controlled temperature all year round, metrological
rooms, computer rooms, laboratories. Air conditioning for rooms with high heat
loads, which require cooling on a year round basis
COOLING CAPACITY CORRECTION FACTORS
External air temperature (°C)
Outlet water
temperature (°C)
-12
-10
-8
-6
-4
-2
0
2
4
6
3
1.18
1.18
1.17
1.16
1.16
1.15
1.15
1.14
1.14
1.13
5
1.18
1.18
1.17
1.16
1.16
1.15
1.15
1.14
1.14
1.13
7
1.19
1.18
1.18
1.17
1.16
1.16
1.15
1.15
1.14
1.14
9
1.20
1.19
1.19
1.18
1.18
1.17
1.16
1.16
1.15
1.15
Outlet water
temperature (°C)
8
10
12
14
16
18
20
22
24
26
3
1.12
1.12
1.12
1.11
1.11
1.10
1.09
1.08
1.06
1.03
5
1.13
1.12
1.13
1.11
1.11
1.10
1.09
1.08
1.06
1.05
7
1.13
1.12
1.12
1.11
1.12
1.11
1.11
1.10
1.10
1.09
9
1.14
1.13
1.13
1.12
1.12
1.11
1.11
1.10
1.10
1.09
COOLING CAPACITY CORRECTION FACTORS
External air temperature (°C)
COOLING CAPACITY CORRECTION FACTORS
External air temperature (°C)
Outlet water
temperature (°C)
28
30
32
34
35
36
38
40
42
44
45
3
0.98
0.92
0.85
0.75
0.69
--
--
--
--
--
--
5
1.02
0.99
0.95
0.90
0.87
0.84
--
--
--
--
--
7
1.08
1.06
1.04
1.02
1.00
0.98
0.94
0.89
0.83
--
--
9
1.08
1.07
1.06
1.04
1.03
1.02
0.99
0.95
0.91
0.85
0.82
Usage indications
• The cooling capacity of the GA-TK will, to some degree, increase / decrease in accordance with outdoor ambient temperature change. To
accurately determine unit cooling capacity at a particular outdoor ambient temperature, it is necessary to use the cooling capacity
correction factor table applicable to this unit.
• GA-TK units produce cold water down to 3 °C. It is therefore essential that a sufficient quantity of a suitable antifreeze is added, in order to
prevent water freezing if the heat load is reduced (exclusion of one or more zones, activation of by-pass valve, etc.)
ACF 60-00 TK Model
21
GA gb
14-02-2006
13:09
Pagina 22
ACF-TK - RTCF-TK Types
GA product line - TK Version
ACF
60-00
TK
RTCF
120-00
TK
RTCF
180-00
TK
RTCF
240-00
TK
RTCF
300-00
TK
100.12 125.12
OPERATION IN COOLING MODE
Heating input
kW
25.03
50.06
75.09
Nominal cooling capacity (1)
kW
17.72
35.44
53.16
70.80
88.60
Nominal water flow rate
l/h
2770
5540
8310
11090
13850
Pressure drop (2)
Gas consumption
kPa
28
natural gas (3)
m3/h
2.65
5.30
7.95
30
10.60
13.25
LPG(4)
kg/h
1.94
3.88
5.82
7.76
9.70
Sound pressure level at 5 m (5) (6)
standard version
low noise version
maximum
dB (A)
57
58
60
61
62
minimum
dB (A)
47
50
52
53
54
maximum
dB (A)
52
53
55
56
57
minimum
dB (A)
45
48
50
51
52
59
Sound pressure level at 10 m (5) (6)
standard version
low noise version
maximum
dB (A)
54
55
57
58
minimum
dB (A)
45
48
50
51
52
maximum
dB (A)
49
52
52
53
54
minimum
dB (A)
44
47
49
50
51
ELECTRICAL DATA
230 V - 50 Hz
single-phase
400 V - 50 Hz three-phase
or 230 V - 50 Hz single-phase
standard version
kW
0.90
1.80
2.70
3.60
4.50
low noise version
kW
0.93
1.86
2.79
3.72
4.65
Weight (when operating)
kg
340
820
1270
1700
2120
Outside temperature operating range
°C
-12/45
Water inlet temperature regulation
°C
3/13
Minimin water outlet temperature
°C
3
Antifreezing temperature
°C
2
4905
6490
Required voltage
Nominal electrical power (7)
INSTALLATION DATA
Connections
Dimensions
(1)
water pipes
”
11/4 F
2M
gas pipes
”F
3/4
11/2
width
mm
850
depth
mm
1230
1240
height (8)
mm
1450
1560
Characteristics under nominal conditions: outside air temperature 35 °C - outlet water
7.2 °C - inlet water 12.7 °C.
(2) At nominal water flow rate.
(3) Lower heating value 34.02 MJ/m3 (9.45 kWh/m3) at 15 °C - 1013 mbar.
(4) Lower heating value 46.34 MJ/kg (12.87 kWh/kg) at 15 °C - 1013 mbar.
(5) Taking into account reduced fan speed (air flow rate) at outside air temperatures below
33 °C. This allows a further reduction in electricity consumption.
(6) Noise source resting on noise-reflecting surface.
(7) ±10% tolerance to allow for different electrical voltage and power absorption of the
electrical motors.
(8) The height of units in the reduced noise version is 90 mm greater than that of the
standard units illustrated.
(9) For 4-pipe RTYF units, gas and electricity consumption must be added together when
using cooling and heating simultaneously.
22
2315
3610
Notes: All models are supplied without a water circulation pump. The chiller-heater groups
are also available in a low noise version and with casing in stainless steel.
For conditions different from nominal conditions, refer to the cooling capacity curve
illustrated in the table on page 21.
Due to continuous product innovation and development, Robur reserves the right to
change product specifications without prior notice.
GA gb
14-02-2006
13:09
Pagina 23
AYF-TK - RTYF-TK Types
GA product line - TK Version
AYF
AYF
RTYF
RTYF
RTYF
RTYF
RTYF
RTYF
RTYF
RTYF
RTYF
60-119/2 60-119/4 120-119/2 120-238/2 180-119/2 180-238/2 180-357/2 240-119/2 240-238/2 240-357/2 240-476/2
TK
TK
TK
TK
TK
TK
TK
TK
TK
TK
TK
OPERATION IN COOLING MODE
Heating input
kW
25.03
25.03
50.06
50.06
75.09
75.09
75.09
Nominal cooling capacity (1)
kW
17.72
17.72
35.44
35.44
53.16
53.16
53.16
70.88
70.88
70.88
70,88
Nominal water flow rate
l/h
2770
2770
5540
5540
8310
8310
8310
11080
11080
11080
11080
Pressure drop (2)
Gas consumption
100.12 100.12 100.12 100.12
kPa
28
natural gas (3)
m3/h
2.65
2.65 (9)
5.30
5.30
7.95
7.95
30
7.95
10.60
10.60
10.60
10.60
LPG (4)
kg/h
1.94
1.94 (9)
3.88
3.88
5.82
5.82
5.82
7.76
7.76
7.76
7.76
Sound pressure level at 5 m (5) (6)
standard version
low noise version
maximum
dB (A)
57
57
58
58
60
60
60
61
61
61
61
minimum
dB (A)
47
47
50
50
52
52
52
53
53
53
53
maximum
dB (A)
52
52
53
53
55
55
55
56
56
56
56
minimum
dB (A)
45
45
48
48
50
50
50
51
51
51
51
58
Sound pressure level at 10 m (5) (6)
standard version
low noise version
maximum
dB (A)
54
54
55
55
57
57
57
58
58
58
minimum
dB (A)
45
45
48
48
50
50
50
51
51
51
51
maximum
dB (A)
49
49
50
50
52
52
52
53
53
53
53
minimum
dB (A)
44
44
47
47
49
49
49
50
50
50
50
OPERATION IN HEATING MODE
Heating input
kW
34.8
34.8
34.8
69.6
34.8
69.6
104.4
34.8
69.6
104.4
139.2
Nominal heating capacity
kW
32.5
32.5
32.5
65.0
32.5
65.0
97.5
32.5
65.0
97.5
130.0
11080
Nominal water flow rate
Gas consumption
l/h
2770
2000
5540
5540
8310
8310
8310
11080
11080
11080
natural gas (3)
m3/h
3.68
3.68 (9)
3.68
7.36
3.68
7.36
11.04
3.68
7.36
11.04
14.72
LPG (4)
kg/h
2.71
2.71 (9)
2.71
5.42
2.71
5.42
8.13
2.71
5.42
8.13
10.84
ELECTRICAL DATA
230 V - 50 Hz
single-phase
Required voltage
Nominal electrical
power
400 V - 50 Hz three-phase o 230 V - 50 Hz single-phase
cooling (7)
kW
0.9
0.9 (9)
1.8
1.8
2.7
2.7
2.7
3.6
3.6
3.6
3.6
heating (7)
kW
0.06
0.06 (9)
0.06
0.12
0.06
0.12
0.18
0.06
0.12
0.18
0.24
1060
1170
1495
1605
1715
1950
2060
2170
2285
4905
6490
6490
6490
6490
INSTALLATION DATA
Weight (when operating)
kg
430
Outside temperature operating range
Connections
Dimensions
cooling
°C
heating
°C
-12/45
water pipes
”
11/4 F
2M
gas pipes
”
3/4 M
11/2 F
-20/45
width
mm
1240
depth
mm
1230
3610
3610
4905
4905
1240
height (8)
mm
1450
1560
For notes, see page 22.
23
GA gb
14-02-2006
12:23
Pagina 24
GA product line HT Version water chillers are natural gas or LPG absorption
units designed specifically for operation at high ambient air temperatures, that is
for air conditioning in geographical areas where external air temperatures can
reach 50 °C.
GA product line HT Version
Air conditioning in tropical zones
GA-HT units have been
(cooling) and from 32.5 to 130
water. The manufacturing
designed to operate at the
kW (heating). They are available
characteristics of these units
following conditions:
in 2 versions:
are the same as those of the
• Operational range - outside air
• HT standard;
ACF 60-00 units, but with some
a Refrigerant Volume Variator
• HT-I (casing in stainless steel).
special features:
for greater average seasonal
The AYF-HT unit is available
• refrigerant load optimised for
temperature: 0 °C - 50 °C.
• Minimum inlet water
temperature: 5 °C.
24
in a 4-pipe version for the
high ambient air temperatures;
They can also be supplied with
simultaneous production of hot
• sealed circuit equipped with a
an integrated heating module,
and cold water, and in a 2-pipe
Refrigerant Volume Variator
for the production of hot water,
version for alternate (on a
for greater efficiency at high
and are manufactured in 16
summer/winter basis)
temperatures;
models, from 17.12 to 85.6 kW
production of hot and cold
• condenser/absorber coil with
special fins for greater heat
exchange;
• sealed circuit equipped with
efficiency;
• upgraded oil pressure pump, to
ensure maximum performance
and reliability;
• microprocessor control
parameters set for specific use.
GA gb
14-02-2006
12:23
Pagina 25
GA product line - HT Version
Typical applications.
Air conditioning of civil, commercial and industrial environments in tropical
geographical zones
COOLING CAPACITY CORRECTION FACTORS
External air temperature (°C)
Outlet water
temperature (°C)
0
2
4
6
8
10
12
14
16
18
5
1.02
1.02
1.02
1.02
1.02
1.02
1.02
1.02
1.02
1.02
1.02
7
1.02
1.02
1.02
1.02
1.02
1.02
1.02
1.02
1.02
10
1.02
1.02
1.02
1.02
1.02
1.02
1.02
1.02
1.02
1.02
12.5
1.02
1.02
1.02
1.02
1.02
1.02
1.02
1.02
1.02
1.02
14
1.03
1.03
1.03
1.03
1.03
1.03
1.03
1.03
1.03
1.03
Outlet water
temperature (°C)
20
22
24
26
28
30
32
34
35
36
5
1.02
1.02
1.02
1.01
1.01
1.01
0.99
0.96
0.94
0.92
0.99
COOLING CAPACITY CORRECTION FACTORS
External air temperature (°C)
7
1.02
1.02
1.02
1.02
1.02
1.02
1.02
1.01
1.00
10
1.02
1.02
1.02
1.02
1.02
1.02
1.02
1.01
1.00
1.00
12.5
1.02
1.02
1.02
1.02
1.02
1.02
1.02
1.01
1.01
1.00
14
1.03
1.03
1.03
1.03
1.03
1.03
1.03
1.02
1.02
1.02
Outlet water
temperature (°C)
38
40
42
44
46
48
5
0.87
0.82
--
--
--
--
--
7
0.97
0.93
0.88
0.82
--
--
--
COOLING CAPACITY CORRECTION FACTORS
External air temperature (°C)
50
10
0.99
0.97
0.94
0.91
0.86
0.80
--
12.5
0.99
0.98
0.97
0.95
0.92
0.87
0.81
14
1.01
1.00
0.99
0.97
0.95
0.91
0.86
Usage indications
GA-HT units can produce chilled water down to a temperature of 5 °C.
It is however advisable, under high ambient conditions, to maintain a high enough unit chilled water temperature setting in order to avoid
excessive temperature difference between the chilled water used for comfort cooling purposes and the space being cooled. This will best
suit comfort conditions by minimising the chances of space over-dehumidification.
ACF 60-00 HT Model
25
GA gb
14-02-2006
12:24
Pagina 26
ACF-HT - RTCF-HT Types
GA product line - HT Version
ACF
60-00
HT
RTCF
120-00
HT
RTCF
180-00
HT
RTCF
240-00
HT
RTCF
300-00
HT
100.12 125.15
OPERATION IN COOLING MODE
Heating input
kW
25.03
50.06
75.09
Nominal cooling capacity (1)
kW
17.12
34.24
51.36
68.48
85.6
Nominal water flow rate
l/h
2675
5350
8025
10700
13375
Pressure drop (2)
natural gas
Gas consumption
(3)
LPG (4)
kPa
28
m3/h
2.65
5.30
7.95
30
10.60
13.25
kg/h
1.94
3.88
5.82
7.76
9.70
Sound pressure level at 5 m (5) (6)
standard version
low noise version
maximum
dB (A)
57
58
60
61
62
minimum
dB (A)
47
50
52
53
54
maximum
dB (A)
52
53
55
56
57
minimum
dB (A)
45
48
50
51
52
59
Sound pressure level at 10 m (5) (6)
standard version
low noise version
maximum
dB (A)
54
55
57
58
minimum
dB (A)
45
48
50
51
52
maximum
dB (A)
49
52
52
53
54
minimum
dB (A)
44
47
49
50
51
ELECTRICAL DATA
230 V - 50 Hz
single-phase
400 V - 50 Hz three-phase
or 230 V - 50 Hz single-phase
standard version
kW
0.90
1.80
2.70
3.60
4.50
low noise version
kW
0.93
1.86
2.79
3.72
4.65
Weight (when operating)
kg
340
820
1270
1700
2120
Outside temperature operating range
°C
0/50
Water inlet temperature regulation
°C
5/15
Minimin water outlet temperature
°C
5
Antifreezing temperature
°C
2
4905
6490
Required voltage
Nominal electrical power (7)
INSTALLATION DATA
Connections
Dimensions
(1)
water pipes
”
11/4 F
2M
gas pipes
”F
3/4
11/2
width
mm
850
depth
mm
1230
1240
height (8)
mm
1450
1560
Characteristics under nominal conditions: outside air temperature 35 °C - outlet water
7.2 °C - inlet water 12.5 °C.
(2) At nominal water flow rate.
(3) Lower heating value 34.02 MJ/m3 (9.45 kWh/m3) at 15 °C - 1013 mbar.
(4) Lower heating value 46.34 MJ/kg (12.87 kWh/kg) at 15 °C - 1013 mbar.
(5) Taking into account reduced fan speed (air flow rate) at outside air temperatures below
33 °C. This allows a further reduction in electricity consumption.
(6) Noise source resting on noise-reflecting surface.
(7) ±10% tolerance to allow for different electrical voltage and power absorption on the part
of the electrical motors.
(8) The height of units in the reduced noise version is 90 mm greater than that of the
standard units illustrated.
(9) For 4-pipe RTYF units, gas and electricity consumption must be added together when
using cooling and heating simultaneously.
26
2315
3610
Notes: All models are supplied without a water circulation pump. The chiller-heater groups
are also available in a low-noise version and with casing in stainless steel.
For conditions different from nominal conditions, refer to the cooling capacity curve
illustrated in the table on page 25.
Due to continuous product innovation and development, Robur reserves the right to
change product specifications without prior notice.
GA gb
14-02-2006
12:24
Pagina 27
AYF-HT - RTYF-HT Types
GA product line - HT Version
AYF
AYF
RTYF
RTYF
RTYF
RTYF
RTYF
RTYF
RTYF
RTYF
RTYF
60-119/2 60-119/4 120-119/2 120-238/2 180-119/2 180-238/2 180-357/2 240-119/2 240-238/2 240-357/2 240-476/2
HT
HT
HT
HT
HT
HT
HT
HT
HT
HT
HT
OPERATION IN COOLING MODE
Heating input
kW
25.03
25.03
50.06
50.06
75.09
75.09
75.09
Nominal cooling capacity (1)
kW
17.12
17.12
34.24
34.24
51.36
51.36
51.36
68.48
68.48
68.48
68.48
Nominal water flow rate
l/h
2675
2675
5350
5350
8025
8025
8025
10700
10700
10700
10700
Pressure drop (2)
Gas consumption
100.12 100.12 100.12 100.12
kPa
28
natural gas (3)
m3/h
2.65
2.65 (9)
5.30
5.30
7.95
7.95
30
7.95
10.60
10.60
10.60
10.60
LPG (4)
kg/h
1.94
1.94 (9)
3.88
3.88
5.82
5.82
5.82
7.76
7.76
7.76
7.76
Sound pressure level at 5 m (5) (6)
standard version
low noise version
maximum
dB (A)
57
57
58
58
60
60
60
61
61
61
61
minimum
dB (A)
47
47
50
50
52
52
52
53
53
53
53
maximum
dB (A)
52
52
53
53
55
55
55
56
56
56
56
minimum
dB (A)
45
45
48
48
50
50
50
51
51
51
51
58
Sound pressure level at 10 m (5) (6)
standard version
low noise version
maximum
dB (A)
54
54
55
55
57
57
57
58
58
58
minimum
dB (A)
45
45
48
48
50
50
50
51
51
51
51
maximum
dB (A)
49
49
50
50
52
52
52
53
53
53
53
minimum
dB (A)
44
44
47
47
49
49
49
50
50
50
50
OPERATION IN HEATING MODE
Heating input
kW
34.8
34.8
34.8
69.6
34.8
69.6
104.4
34.8
69.6
104.4
139.2
Nominal heating capacity
kW
32.5
32.5
32.5
65.0
32.5
65.0
97.5
32.5
65.0
97.5
130.0
10700
Nominal water flow rate
Gas consumption
l/h
2675
2000
5350
5350
8025
8025
8025
10700
10700
10700
natural gas (3)
m3/h
3.68
3.68 (9)
3.68
7.36
3.68
7.36
11.04
3.68
7.36
11.04
14.72
LPG (4)
kg/h
2.71
2.71 (9)
2.71
5.42
2.71
5.42
8.13
2.71
5.42
8.13
10.84
ELECTRICAL DATA
230 V - 50 Hz
single-phase
Required voltage
Nominal electrical
power
400 V - 50 Hz three-phase or 230 V - 50 Hz single-phase
cooling (7)
kW
0.9
0.9 (9)
1.8
1.8
2.7
2.7
2.7
3.6
3.6
3.6
3.6
heating (7)
kW
0.06
0.06 (9)
0.06
0.12
0.06
0.12
0.18
0.06
0.12
0.18
0.24
1060
1170
1495
1605
1715
1950
2060
2170
2285
4905
6490
6490
6490
6490
INSTALLATION DATA
Weight (when operating)
kg
430
Outside temperature operating range
Connections
Dimensions
cooling
°C
0/50
heating
°C
-20/45
water pipes
”
11/4 F
2M
gas pipes
”
3/4 M
11/2 F
width
mm
1240
depth
mm
1230
3610
3610
4905
4905
1240
height (8)
mm
1450
1560
For notes, see page 26.
27
GA gb
14-02-2006
12:24
Pagina 28
GA product line LB Version water chillers are natural gas or LPG absorption units
designed for specific applications requiring lower indoor temperatures – eg. food
preservation cells, such as refrigerating rooms, laboratory applications etc.
GA product line LB Version
Refrigeration
Refrigerant Volume Variator for
models from 13.3 to 66.5 kW
designed to operate at the
of cooling capacity (with inlet
These units have the same
following special conditions:
liquid at -5 °C).
manufacturing characteristics
• Operational range - outside air
They are available in 4 versions:
as those of the ACF 60-00 units,
• LB standard;
but with some special
• LB-S (low noise);
components:
• LB-I (casing in stainless steel);
• optimised refrigerant load;
parameters set for specific
• LB-S-I (low noise and in
• sealed circuit equipped with a
usage.
temperature: -12 °C/45 °C.
• Minimum inlet liquid
temperature: -10 °C.
The units are available in 5
28
stainless steel).
GA-LB units have been
high cooling efficiency;
• upgraded oil pressure pump
group, to ensure maximum
performance and reliability;
• microprocessor control
GA gb
14-02-2006
12:24
Pagina 29
GA product line - LB Version
Typical applications.
Cooling of low-temperature food processing environments, where it is necessary
to keep internal temperatures in line with health and hygiene regulations.
Cooling of conservation rooms and chilled counters for food preservation.
Process cooling in plants that require below zero liquid temperatures.
Ice storage plants, for the storage of cooling energy during periods of low
thermal load.
COOLING CAPACITY CORRECTION FACTORS
External air temperature (°C)
Outlet water
temperature (°C)
-12
-10
-8
-6
-4
-2
0
2
4
6
-10
1.05
1.05
1.05
1.05
1.05
1.05
1.05
1.05
1.04
1.04
-7
1.09
1.09
1.09
1.09
1.09
1.09
1.09
1.09
1.09
1.09
-5
1.13
1.13
1.13
1.13
1.13
1.13
1.13
1.13
1.13
1.13
-2
1.13
1.13
1.13
1.13
1.13
1.13
1.13
1.13
1.13
1.13
Outlet water
temperature (°C)
8
10
12
14
16
18
20
22
24
26
-10
1.04
1.04
1.04
1.04
1.04
1.03
1.03
1.01
1.00
0.98
-7
1.09
1.,09
1.09
1.09
1.09
1.09
1.09
1.09
1.08
1.07
-5
1.13
1.13
1.13
1.13
1.13
1.13
1.13
1.13
1.13
1.12
-2
1.13
1.13
1.13
1.13
1.13
1.13
1.13
1.13
1.13
1.13
45
COOLING CAPACITY CORRECTION FACTORS
External air temperature (°C)
COOLING CAPACITY CORRECTION FACTORS
External air temperature (°C)
Outlet water
temperature (°C)
28
30
32
34
35
36
38
40
42
44
-10
0.95
0.90
0.85
0.78
0.74
--
--
--
--
--
--
-7
1.05
1.02
0.98
0.93
0.90
0.85
--
--
--
--
--
-5
1.11
1.09
1.05
1.02
1.00
0.97
0.90
0.80
--
--
-2
1.12
1.10
1.08
1.05
1.03
1.00
0.95
0.87
0.78
0.67
0.61
Usage indications
• GA-LB units are able to cool fluid to -10 °C. It is therefore essential that a sufficient quantity of a suitable antifreeze is added in order to
prevent water freezing. If there is any possibility that the refrigerated fluid may come into contact with foodstuffs, it is necessary to use a
non-toxic antifreeze (for example, propylene glycol).
• The nominal cooling capacity of the GA-LB unit is based on a 40% solution of antifreeze at an evaporator outlet liquid temperature of -5 °C
and an ambient air temperature of 35 °C. Cooling capacity corrections for other liquid and air temperatures can be made using the
correction factor table relevant to this unit. Cooling capacity corrections, as applicable, should also be
made when selecting suitable terminal units (air treatment coils and fan coils).
• The cooling capacity of the GA-LB will, to some degree, increase/decrease in accordance with outdoor
ambient temperature change. To accurately determine unit cooling capacity at a particular outdoor
ambient temperature, it is necessary to use the cooling capacity correction factor table applicable to this
unit.
ACF 60-00 LB Model
29
GA gb
14-02-2006
12:24
Pagina 30
ACF-LB - RTCF-LB Types
GA product line - LB Version
ACF
60-00
LB
RTCF
120-00
LB
RTCF
180-00
LB
RTCF
240-00
LB
RTCF
300-00
LB
100.12 125.15
OPERATION IN COOLING MODE
Heating input
kW
25.03
50.06
75.09
Nominal cooling capacity (1)
kW
13.3
26.6
39.9
Nominal water flow rate
l/h
2600
5200
7800
Pressure drop (2)
Gas consumption
53.2
66.5
10400 13000
kPa
40
natural gas (3)
m3/h
2.65
5.30
7.95
43
10.60
13.25
LPG (4)
kg/h
1.94
3.88
5.82
7.76
9.70
Sound pressure level at 5 m (5) (6)
standard version
low noise version
maximum
dB (A)
57
58
60
61
62
minimum
dB (A)
47
50
52
53
54
maximum
dB (A)
52
53
55
56
57
minima
dB (A)
45
48
50
51
52
59
Sound pressure level at 10 m (5) (6)
standard version
low noise version
maximum
dB (A)
54
55
57
58
minimum
dB (A)
45
48
50
51
52
maximum
dB (A)
49
50
52
53
54
minimum
dB (A)
44
47
49
50
51
ELECTRICAL DATA
230 V - 50 Hz
single-phase
Required voltage
400 V - 50 Hz three-phase
or 230 V - 50 Hz single-phase
Nominal electrical power (7)
standard version
kW
0.9
1.8
2.7
3.6
4.5
low noise version
kW
0.93
1.86
2.79
3.72
4.65
Weight (when operating)
kg
340
820
1.270
1.700
2.120
Outside temperature operating range
°C
-12/45
Water inlet temperature control
°C
-10/0
Minimun water outlet temperature
°C
-10
Antifreezing temperature
°C
4905
6490
INSTALLATION DATA
Connections
Dimensions
(1)
”F
11/4
2
gas pipes
”F
3/4
11/2
width
mm
850
depth
mm
1230
1240
height (8)
mm
1450
1560
Characteristics under nominal conditions: outside air temperature 35 °C,
40% water/glycol solution outlet fluid -5 °C - inlet water 0 °C.
(2) At nominal flow rate (40% water/glycol solution).
(3) Lower heating value 34.02 MJ/m3 (9.45 kWh/m3) at 15 °C - 1013 mbar.
(4) Lower heating value 46.34 MJ/kg (12.87 kWh/kg) at 15 °C - 1013 mbar.
(5) Taking into account reduced fan speed (air flow rate) at outside air temperatures below
33 °C. This allows a further reduction in electricity consumption.
(6) Noise source resting on noise-reflecting surface.
(7) ±10% tolerance to allow for different electrical voltage and power absorption of the
electrical motors.
(8) The height of units in the reduced noise version is 90 mm greater than that of the
standard units illustrated.
30
-12
water pipes
2315
3610
Notes: For conditions different from nominal conditions, refer to the cooling capacity curve
illustrated in the table on page 29.
Due to continuous product innovation and development, Robur reserves the right to
change product specifications without prior notice.
GA gb
14-02-2006
12:24
Pagina 31
GA and AY
Accessories
GA gb
14-02-2006
12:24
Pagina 32
GA and AY product lines
Accessories
The following accessories are available for all models of the GA
and AY product lines.
Direct Digital Controller (DDC)
water circuit and, up to 48
A single device (supplied as
modules if connected to two
• stage control of units;
other Direct Digital Controllers;
• ability to switch the plant on
standard on RTCF, RTYF and
Multi AY units) for total and
• programming of operation in
independent management and
heating or cooling mode
control of the production of hot
and/or heating in four
and cold water. Some features:
programmable time periods
• management of up to 16
with different water
modules (single or
factory-assembled in 2- and
4-pipe versions) on the same
temperatures of the plant;
and off via an external on/off
command;
signals for any single unit;
• ability to control units on the
temperatures;
basis of external temperature;
hot water inlet and outlet
individual unit;
• chronological display of
alarms which have occurred;
• possible connection to remote
• acoustic and visual allarms
• constant control of cold and
parameters and error of each
monitoring systems;
• possibility to control and
manage 4-pipe systems (AYF/4
and RTYF/4) simultaneously.
• continuous display of all
operating conditions,
Direct Digital Controller connection scheme
RTCF
RTYF
AYF 60-119
ACF 60-00
RTCF
ACF 60-00
(possible plant expansion)
32
GA gb
14-02-2006
12:24
Pagina 33
GA and AY product lines
Finned coil condenser/absorber
filter kit
To facilitate cleaning of the
finned coil.
Antivibration damping pads kit
To install under the unit steel
base support frame.
When requested these pads
can be pre-mounted on the units
(only for ACF and RTYF).
Water circulation pump
Of centrifugal type for single
units (for ACF 60-00 and
AYF 60-119 Models).
Mosè hydraulic separator
For the balancing of water
circuits, complete with
automatic air breathe valve,
drain valve and insulation.
Couplings with pressure port
Supplied in sets of two and
equipped with cock
(for ACF 60-00 and AYF 60-119
Models).
Antivibration flexible hoses for
hydraulic connections
Suitable for both hot and chilled
water.
Water filter
With removable drum for
cleaning.
7.5 Litre expansion tank kit
For installation in heating
module (for AYF 60-119 Model).
33
GA gb
14-02-2006
12:24
Pagina 34
Robur also produces
Natural gas/LPG absorption pumps
for alternate and simultaneous
heating and cooling.
34
Natural gas/LPG absorption systems
for cooling and heating.
Gas-fired unit heaters for commercial
and industrial areas.
GA gb
14-02-2006
12:24
Pagina 35
Combined gas heating system. This
two-piece heater comprising boiler
and ventilation unit provides
rapid solutions for countless heating
requirements.
Forced draught gas-fired radiators
ideal for small/medium areas.
Air barriers to decrease heat loss
due to frequent opening of industrial
and commercial doors.
35
14-02-2006
12:24
Pagina 36
Codice: X-DPL140 - Rev. 05 - 03/2006
GA gb
caring for the environment
Robur Spa
advanced heating
and cooling technologies
Via Parigi 4/6
24040 Verdellino/Zingonia (Bg) Italy
T +39 035 888111 F +39 035 4821334
www.robur.com
[email protected]