Robur Link Series Service manual

Installation, use and maintenance manual
powered by gas and renewable energy
Modular heating unit and heater/chiller
Link

This Installation, use and maintenance manual has been drawn up and printed by Robur S.p.A.; whole or partial
reproduction of this Installation, use and maintenance manual is prohibited.
The original is led at Robur S.p.A.
Any use of this Installation, use and maintenance manual other than for personal consultation must be previously
authorised by Robur S.p.A.
The rights of those who have legitimately led the registered trademarks contained within this publication are not
aected.
With the aim of continuously improving the quality of its products, Robur S.p.A. reserves the right to modify the
data and contents of this Installation, use and maintenance manual without prior notice.
Revision: C
Code: D-LBR892EN
DISPOSAL
The appliance and all its accessories must be disposed of separately in accordance with the regulations in force.
Use of theWEEE symbol (Waste Electrical and Electronic Equipment) indicates that this product cannot be disposed of as house-
hold waste. Proper disposal of this product helps to prevent potential negative consequences for the environment and human
health.

Installation, use and maintenance manual – Link 3
I Introduction.......................................................................... p.4
I.1 Recipients................................................................ p.4
I.2 Control device ....................................................... p.4
I.3 Available languages ............................................ p.4
II Symbols and denitions......................................... p.4
II.1 Key to symbols ...................................................... p.4
II.2 Terms and denitions ......................................... p.4
III Warnings................................................................................... p.4
III.1 General and safety warnings............................ p.4
III.2 Compliance............................................................. p.6
III.3 Exclusions of liability and warranty ............... p.6
1 Features and technical data................................ p.7
1.1 Features.................................................................... p.7
1.2 Circulating pumps................................................ p.7
1.3 Description of the Link....................................... p.8
1.4 Hydraulic/gas connections............................. p.10
1.5 Dimensions and weights................................. p.15
1.6 Equipment of a Link with water pumps..... p.24
1.7 Equipment of a Link without water pumps
................................................................................... p.25
1.8 Electrical specications.................................... p.26
1.9 Electronic boards................................................ p.26
1.10 Operation mode ................................................. p.26
1.11 Controls.................................................................. p.26
1.12 Technical data...................................................... p.27
2 Transport and positioning.................................. p.27
2.1 Warnings................................................................ p.27
2.2 Handling and lifting .......................................... p.27
2.3 Appliance positioning ...................................... p.27
2.4 Minimum clearance distances....................... p.28
2.5 Mounting base.................................................... p.28
3 Heating engineer........................................................... p.29
3.1 Warnings................................................................ p.29
3.2 Hydraulic system ................................................ p.29
3.3 Fuel gas supply.................................................... p.34
3.4 Combustion products exhaust...................... p.35
3.5 Flue gas condensate drain.............................. p.36
3.6 Defrosting water drainage.............................. p.36
3.7 Safety valve drain............................................... p.37
4 Electrical installer......................................................... p.37
4.1 Warnings................................................................ p.37
4.2 Electrical systems ............................................... p.37
4.3 Electrical power supply.................................... p.38
4.4 Adjustment and control................................... p.39
4.5 Water circulation pumps.................................. p.43
5 First start-up....................................................................... p.45
5.1 Preliminary checks............................................. p.45
5.2 Electronic adjustment on the appliance –
Menus and parameters .................................... p.46
5.3 Modifying settings............................................. p.46
6 Normal operation......................................................... p.46
6.1 Warnings................................................................ p.46
6.2 Switch on and o................................................ p.46
6.3 Modifying settings............................................. p.47
6.4 Eciency ............................................................... p.47
7 Maintenance....................................................................... p.47
7.1 Warnings................................................................ p.47
7.2 Pre-emptive maintenance .............................. p.48
7.3 Scheduled routine maintenance.................. p.48
7.4 Messages on the display.................................. p.48
7.5 Restarting a locked-out unit........................... p.49
7.6 Periods of inactivity........................................... p.49
8 Diagnostics........................................................................... p.49
8.1 Appliances/controllers ..................................... p.49
TABLE OF CONTENTS

Introduction
4
I
I INTRODUCTION
Installation, use and maintenance manual
This Manual is an integral part of the Link appli-
ance and must be handed to the end user together
with the appliance.
I.1 RECIPIENTS
This Manual is intended for:
▶ End user, for appropriate and safe use of the appliance.
▶ Qualied installer, for correct appliance installation.
▶ Planner, for specic information on the appliance.
I.2 CONTROL DEVICE
In order to work, the Link appliance requires a control de-
vice to be connected by the installer.
I.3 AVAILABLE LANGUAGES
This document is originally written in Italian and English.
Any other languages are translations of this document.
For versions of this document in other languages, see
Robur website.
II SYMBOLS AND DEFINITIONS
II.1 KEY TO SYMBOLS
DANGER
WARNING
NOTE
PROCEDURE
REFERENCE (to other document)
II.2 TERMS AND DEFINITIONS
DHW = domestic hot water.
Aerothermal appliances/units = equivalent terms, both
used to designate gas-red heat/chiller appliances that
require proper heat exchange with the outdoor air to op-
erate (GAHP A/AR gas absorption heat pumps or GA ACF/
HR/TK/HT/LB gas absorption chiller).
Appliance/Module/Unit GAHP/GA/AY = equivalent
terms, both used to designate single gas-red heat/chiller
appliance (GAHP A/AR/GS/WS gas absorption heat pump,
or GA ACF/HR/TK/HT/LB gas absorption chiller or AY
condensing boiler), part of the Link together with other
modules/appliances.
Appliance/Preassembled group/Link = equivalent
terms, both used to designate the generic heat/chiller hy-
dronic group consisting of GAHP/GA/AY modules.
TAC = Technical Assistance Centre authorised by Robur.
CCI Controller (Comfort Controller Interface) = optional
Robur control device which lets you manage up to three
modulating GAHP units (GAHP A, GAHP GS/WS) of the
same type, for heating only.
DDC Control (Direct Digital Controller) = optional Robur
control device to manage one or more Robur appliances
in ON/OFF mode (GAHP heat pumps, GA chillers) or in
modulating mode (AY boilers).
RB100/RB200 Devices (Robur Box) = optional interface
devices complementary to DDC, which may be used to
broaden its functions (heating/cooling/DHW produc-
tion service demands and control of system components
such as third party generators, adjustment valves, water
pumps, probes).
Link condensing boilers = preassembled group consist-
ing of a combination of AY condensing boilers.
Link heat pumps = preassembled group for heating and/
or cooling, consisting of a combination of GAHP/GA/AY
heating/cooling modules, in which at least one GAHP
heat pump is present.
Link chillers = preassembled group of chillers, consisting
of a combination of GA refrigeration modules (excluding
ACF60-00 HR appliances).
Link chiller-heaters = preassembled group for heating
and/or cooling consisting of a combination of GA/AY heat-
ing/cooling modules, including ACF60-00 HR appliances.
First start-up = appliance commissioning operation
which may only and exclusively be carried out by a TAC.
III WARNINGS
III.1 GENERAL AND SAFETY WARNINGS
GAHP/GA/AY modules
As far as the individual GAHP/GA/AY modules
making up the Link are concerned, please read
the warnings in their respective manuals, with
particular regard to the following aspects (where
applicable):
Poisoning

Warnings
Installation, use and maintenance manual – Link 5
III
Moving parts
Burn hazard
Pressure vessels
Water-ammonia solution
Limescale and corrosion
Chloride concentration
Aggressive substances in the air
Installer's qualications
Installation must exclusively be performed by a
qualied rm and by qualied personnel, with spe-
cic knowledge on heating, cooling, electrical sys-
tems and gas appliances, in compliance with the
laws in force in the Country of installation.
Declaration of conformity
Upon completing installation, the installing rm
shall issue to the owner/client the appliance's
workmanlike conformity declaration, according to
national/local regulations in force and the manu-
facturer's instructions/provisions.
Misuse
The appliance must only be used for the purpos-
es for which it has been designed. Any other use is
deemed hazardous. Incorrect use may aect oper-
ation, duration and safety of the appliance. Adhere
to the manufacturer's instructions.
Use of the appliance by children
The appliance can be used by children over 8 years
old, and by people with reduced physical, senso-
ry or mental capabilities, or lack of experience or
knowledge, only if they are under surveillance or
after they have received instructions regarding
safe use of the appliance and understanding the
dangers inherent in it. Children should not play
with the appliance.
Hazardous situations
Do not start the appliance in hazardous conditions,
such as: gas smell, problems with the plumbing/
electrical/gas system, parts of the appliance under
water or damaged, malfunctioning, disabling or
bypassing control and safety devices.
In case of danger, request intervention by qualied
personnel.
In case of danger, switch o the electrical power
and gas supplies only if this can be done in total
safety.
Gas component tightness
Before performing any operation on gas ducting
components, close the gas valve.
Upon completing any procedure, perform the
tightness test according to regulations in force.
Gas smell
If you smell gas:
Do not use electrical devices such as telephones,
multimeters or other equipment that may cause
sparks next to the appliance.
Shut o the gas supply by turning the valve o.
Switch o the power supply via the external dis-
connect switch in the power supply electrical pan-
el.
Use a telephone away from the appliance to ask for
intervention from qualied personnel.
Electrocution hazard
Disconnect the electrical power supply before any
operation on appliance components.
For electrical connections exclusively use compli-
ant components and according to the specica-
tions provided by the manufacturer.
Ensure the appliance cannot be accidentally
switched back on.
Connection and disconnection
For the Link electrical connection and disconnec-
tion operations follow the procedure described in
Paragraph 7.1 p.47 .
Earthing
Electrical safety depends on eective earthing sys-
tem, correctly connected to the appliance and in-
stalled according to the regulations in force.
Distance from combustible or ammable mate-
rials
Do not deposit ammable materials (paper, dilu-
ents, paints, etc.) near the appliance.
Acid ue gas condensate
If condensing units are present in the Link:
Discharge the acid condensate of combustion ue
gas in compliance with current exhaust regula-
tions.
Switching the appliance o
Disconnecting the power supply while the appli-
ance is running may cause permanent damage to
internal components.
Except in the event of danger, do not disconnect
the power supply to switch o the appliance, but
always and exclusively act through the provided
control device.
In the event of failure
Operations on internal components and repairs

Warnings
6
III
may exclusively be carried out by a TAC, using only
original spare parts.
In the event of a failure of the Link, or of one or
more of the individual modules that make it up
and/or break parts of it, refrain from any repair or
restoration attempt and contact the TAC immedi-
ately.
Routine maintenance
Proper maintenance assures the eciency and
good operation of the appliance over time.
Maintenance must be performed according to the
manufacturer's instructions (see Chapter 7 p. 47 )
and in compliance with current regulations.
Appliance maintenance and repairs may only be
entrusted to rms legally authorised to work on
gas appliances and systems.
Enter into a maintenance contract with an author-
ised specialised rm for routine maintenance and
for servicing in case of need.
Use only original parts.
Maintenance of GAHP/GA/AY modules
For the maintenance of the individual GAHP/GA/
AY modules making up the Link, refer to their re-
spective manuals.
Decommissioning and disposal
If the Link, or even one or more of the individual
GAHP/GA/AY modules that make it up, is to be dis-
posed of, contact the manufacturer for its disposal.
Keep the Manual
This Installation, use and maintenance manual, in-
cluding all the documents relating to the individ-
ual GAHP/GA/AY modules that make it up, must
always accompany the appliance and must be
handed to the new owner or installer in the event
of sale or removal.
III.2 COMPLIANCE
III.2.1 EU directives and standards
The GAHP/GA/AY modules that make up the Link, name-
ly the GAHP series gas absorption heat pumps, GA series
gas absorption chillers, and AY series condensing boilers
comply with the essential requirements of the following
standards and directives, each as applicable:
▶ Eciency Directive 92/42/EEC and subsequent modi-
cations and additions.
▶ 2016/426/EU "Gas Appliances Regulation" as amend-
ed and added.
▶ 2014/30/EC "Electromagnetic Compatibility Directive"
as amended and added.
▶ 2014/35/EC "Low Voltage Directive" as amended and
added.
▶ 2014/68/EU "Pressure Equipment Directive" as amend-
ed and added.
▶ 811/2013/EU "Energy-Related Products regulation" as
amended and added.
▶ 813/2013/EU "Ecodesign requirements regulation" as
amended and added.
▶ EN 12309 appliances for gas-red heating and/or cool-
ing absorption.
▶ EN 378 Refrigerating systems and heat pumps.
▶ EN 15502 Gas-red central heating boilers.
III.2.2 Other applicable provisions and standards
The design, installation, operation and maintenance of
the systems shall be carried out in compliance with cur-
rent applicable regulations, depending on the Country
and location, and in accordance with the manufacturer's
instructions. In particular, regulations regarding the fol-
lowing shall be complied with:
▶ Gas systems and equipment.
▶ Electrical systems and equipment.
▶ Heating and air conditioning systems, heat pumps
and chillers.
▶ Environmental protection and combustion products
exhaust.
▶ Fire safety and prevention.
▶ Any other applicable law, standard and regulation.
III.3 EXCLUSIONS OF LIABILITY AND
WARRANTY
Any contractual or extra-contractual liability of the
manufacturer for any damage caused by incorrect
installation and/or improper use and/or failure to
comply with regulations and with the manufactur-
er's directions/instructions shall be disclaimed.
In particular, the warranty on the appliance may be
rendered void by the following conditions:
Incorrect installation.
Misuse.
Failure to comply with the manufacturer's indica-
tions on installation, use and maintenance.
Alteration or modication of the product or any
part thereof.
Extreme operational conditions or however out-
side of the operational ranges set forth by the man-
ufacturer.
Damages caused by external agents such as salts,
chlorine, sulphur or other chemical substances
contained in the installation water or present in the
air of the installation site.
Abnormal actions transmitted to the appliance by
the system or installation (mechanical stresses,
pressure, vibrations, thermal expansion, electrical
surges...).
Accidental damages or due to force majeure.

Features and technical data
Installation, use and maintenance manual – Link 7
1
1 FEATURES ANDTECHNICAL DATA
For the characteristics of the individual GAHP/GA/
AY modules that make up the Link, and of the con-
trol devices, please refer to their respective man-
uals.
1.1 FEATURES
1.1.1 Link
The Link are gas-red (natural gas or LPG) heating/cooling
groups, to supply hot and/or chilled water. Each Link con-
sists of a number of individual gas-red heating/cooling
modules (GAHP/GA/AY modules). The set of appliances
and components is preassembled at the factory, forming
a complete hydronic group already prepared to be con-
nected to the system.
1.1.2 Application
Each Link, according to its conguration (Link condens-
ing boilers, heat pumps, chillers, chiller-heaters) is able
to simultaneously or alternatively provide space heating,
cooling, DHW production and heat recovery, according to
the needs of each individual installation, with a consider-
able extension of heating and cooling output.The various
hydronic models are suitable for all heating and cooling
systems operating with hot and/or chilled water, with
common terminals (e.g. radiators, fan coils, radiant panels,
fan heaters, air handling units, DHW buer tanks, swim-
ming pool heat exchangers, ...), including process systems
(industrial heat exchangers).
1.1.3 Manufacturing features
Each Link, in addition to the GAHP/GA/AY gas-red heat-
ing/cooling modules, consists of:
▶ delivery/return stainless steel hydraulic manifolds, in-
sulated with rigid cups lined with aluminum sheet
▶ galvanized steel gas outlet manifold
▶ exible couplings of individual modules to hydraulic
and gas manifolds
▶ condensate drain manifold (only if there are at least
two condensing appliances GAHP A/GAHP GS/WS/AY)
▶ electrical panel with protection devices (2 electrical
panels with more than 6 modules)
▶ bearing structure with galvanized steel sections
1.1.4 Composition (GAHP/GA/AY modules)
The gas heating/cooling modules that make up a Link can
be:
▶ GAHP units, versions A/AR/GS/WS, gas absorption
heat pumps
▶ GA units, versions ACF/HR/TK/HT/LB, gas absorption
chillers
▶ AY units, versions AY 35/AY 50/AY 100, condensing
boilers
distinguished in:
▶ aerothermal units (A, AR, ACF, HR, TK, HT, LB)
▶ hydrothermal (WS) and geothermal (GS) units
in variable number:
▶ from 2 to 5 in the case of GAHP/GA only
▶ from 2 to 7 in the case of GAHP/GA and AY
The Link with aerothermal units must be installed exclu-
sively outdoors, while others may be installed either out-
doors or indoors (using the specic indoor versions).
TheaerothermalmodulesofLinksmaybe in conguration:
▶ with standard fans
▶ with silenced fans (S or S1)
1.1.5 Congurations
▶ Without water pumps or with oversize water pumps.
▶ 2, 4 or 6 pipes, ie 1, 2 or 3 pairs of delivery/return hy-
draulic collectors/connections for hot and/or cold wa-
ter, connected as needed.
1.1.6 INAIL safety appliances
The kit is only available on appliances intended for the
Italian market.
1.2 CIRCULATING PUMPS
1.2.1 Link without water pumps
If the Link is without circulators, It must be installed on the
hydraulic/primary circuit at least one circulation pump,
suitably selected and rated (by the designer/installer).
If the Link also includes AY boilers, it is not possible
to implement the Link without independent water
pumps for each of the modules.
1.2.2 Link with water pumps
In the Link already equipped with water pumps, each in-
dividual GAHP/GA/AY module that makes up the Link has
(at least) a single independent water pump.
The water pumps are installed externally to the
GAHP/GA units, and are provided with a suitable
protective cover (Figure 1.28 p. 24 ), while for AY
units the water pumps are installed internally to
the unit itself.
The available head at the hydraulic connections of the
Link is considered net of the internal pressure drops of the
appliances and hydraulic manifolds.
Table 1.1 p. 7 provides the minimum residual head at
the nominal ow in the largest conguration.
Table1.1Minimum residual head
residual head [bar]
Oversize water pumps 0,34
See the design manual for more detailed ow, head and
pressure drop data.

Features and technical data
8
1
1.3 DESCRIPTION OF THE LINK
Each Link is described by a series of letters and digits that
distinguish its composition and conguration. In order:
1. Description and composition of the Link:
LINK (always present if several modules are preas-
sembled).
(13 to 23 letters) = type of Link according to con-
stituent modules:
– CONDENSING BOILERS (if the Link only consist of
AY boilers)
– HEAT PUMPS (if at least one GAHP A, GAHP-AR,
GAHP GS/WS module is present on the Link)
– CHILLERS (if the Link only consist of GA modules,
excluding ACF60-00 HR modules)
– CHILLER-HEATERS (if on the Link are present GA
modules combined with AY boilers, or ACF60-00
HR modules, eventually combined with GA
modules)
(3 to 33 letters) = composition of the Link (num-
ber of modules followed by module type). Modules
are ordered as follows: GAHP A, GAHP-AR, GA ACF,
ACF60-00 HR, AY 100, AY 50, AY 35. The letter "S"
that may be present after the module type iden-
ties the modules that are connected to the sepa-
rate circuit, which are listed after those connected
to the base circuit, with the same sorting criteria for
the modules.
2. (2 digits) = nominal cooling output, given by the
sum of the nominal cooling outputs of the individu-
al modules. If the Link does not provide cooling, 00 is
indicated
3. (3 digits) = nominal heat output, given by the sum of
the nominal heat outputs of the individual modules. If
the Link does not provide for heating, 00 is indicated
4. ( , /4 or /6) = number of pipes, i.e. outlet/inlet manifold
pairs (1, 2 or 3)
5. ( , S, S1) = fans, standard, silenced or silenced brushless
(only for aerothermal units)
6. (2 letters) = empty (only applicable for the Italian
market)
7. (3 to 8 letters) = fuel gas (and its pressure, if several
supply pressures are available for the same gas in the
same country)
8. (2 letters) = country of destination
9. (2 letters) = water pumps (without or oversized)
10.(6 or 7 letters) = only for Link of GAHP GS/WS heat
pumps: outdoor or indoor version
Table 1.1 p. 9 exemplies the meaning of the encod-
ing in detail, providing the key for reading any possible
composition and conguration, starting from an example.
It should be noted that the number of modules of a spe-
cic type on the Link is determined indirectly via the heat-
ing and cooling output value, which always identies only
one possible module combination.
The example shows a LINK HEAT PUMPS 1AR 1CF 1HR
1AY100S 1AY50S 1AY35S 52-240 /6 S G30-50MB CH WW
which is decoded as follows:
1. (LINK HEAT PUMPS 1AR 1CF 1HR 1AY100S 1AY50S
1AY35S) = Link consisting of (1 GAHP-AR, 1 ACF60-00,
1 ACF60-00 HR) on the base circuit and (1 AY 100, 1 AY
50, 1 AY 35) on the separate circuit.
2. (52) = nominal cooling output (A35W7) in kW, result-
ing from the sum of: 16,9 kW for the GAHP-AR module,
17,7 kW for the ACF60-00 module and 17,7 kW for the
ACF60-00 HR module.
3. (240) = nominal heat output (A7W35) in kW, resulting
from the sum of: 37,8 kW for the module GAHP-AR,
21,0 kW for the module ACF60-00 HR, 98,4 kW for the
module AY 100, 49,2 kW for the module AY 50 and 33,4
kW for the module AY 35.
4. (/6) = water circuit with three separate pipe pairs
(heating/cooling, DHW and heat recovery).
5. (S) = GAHP/GA modules are equipped with a low-
noise fan.
6. () = empty, as only applicable to the Italian market.
7. (G30-50MB) = the Link is designed for G30 gas supply
with a pressure of 50 mbar.
8. (CH) = the country of destination is Switzerland.
9. (WW) = the Link is equipped with oversized water
pumps for each module on all circuits (base+separa-
ble and recovery).
10.() = not being a Link of GAHP GS/WS this eld is empty.

Features and technical data
Installation, use and maintenance manual – Link 9
1
Figure1.1Link description encoding matrix
LINK HEAT PUMPS
52 Appliance
ACF
HR
TK
HT
LB
AR
AR CT
GS-HT
GS-LT
WS
A-HT
A-LT
AY
240 Appliance
ACF
HR
TK
HT
LB
AR
AR CT
A-HT
A-HT CT
A-LT
AY35
AY50
AY100
WS
GS-HT
GS-LT
/6 Pipes
2 pipes
4 pipes
4+2 (HR+AY)
S Version
standard
low-noise
brushless
Only for italian Market
G30-50MB Gas type
G20
G25
G25.1
G25.3
G2.350
G27
G30
G30
G30
G31
G31
G31
G31
GPL/LPG
CH Description
IT
DE
CH
AT
DK
HU
RO
RU
FA
FR
HR
ES
CZ
PL
EN
BE
NL
GB
WW
Link without HR
heating/cooling heating/cooling recovery/source
without water pumps SC N N
oversized water pump CW W W
Version
only for GS/WS indoor
only for GS/WS outdoor
2 3 4 5 6 7 8 9 = FIELD
LINK HEAT PUMPS 1AR 1CF 1HR 1AY100S 1AY50S 1AY35S 52- 240 /6 S G30-50MB CH WW = DESCRIPTION
Code
F-GAA
F-GAR
F-GCF
F-GCF
F-EEC
F-HRE
F-HAR
F-FRE
1
9
Link with HR or GS/WS
Description
10
INDOOR
OUTDOOR
8
United Kingdom
Water pumps
Type
Description
Russia
France Air
France
Croatia
Spain
Czech Republic
Country of destination
Italy
Germany
Switzerland
Austria
Denmark
Hungary
Romania
6
G30-50MB
G31
G31-30MB
G31-37MB
G31-50MB
GPL
Description
7
MET
G25
G25.1
G25.3
G2.350
G27
G30
G30-30MB
Poland
Generic export
Belgium
Netherlands
3
0
21,0
0
0
0
37,8
35,0
43,9
41,6
42,6
Description
4
/4
/6
Description
5
S
S1
16,4
17,0
18,7
0
0
0
Cooling output
kW
2
17,7
17,7
17,7
17,1
13,3
16,9
16,9
41,3
35,0
41,7
33,4
49,2
98,4
Heating output
kW
HEAT PUMPS
A-AY
CHILLER-HEATERS
HR-AY
HEAT PUMPS
HR-A
HEAT PUMPS
A-AR
F-GHA
F-AAR
F-AAE
F-GHE
HEAT PUMPS
AR-A-AY
HEAT PUMPS
ACF-AR-AY
HEAT PUMPS
WS
HEAT PUMPS
GS
F-GWS
F-GGS
F-RAE
F-RFE
CHILLER-HEATERS
HR-ACF
CHILLER-HEATERS
ACF-AY
HEAT PUMPS
AR-AY
CHILLER-HEATERS
HR-ACF-AY
F-ARE
F-HFE
F-HCF
F-GFE
HR-AR-ACF-AY
HEAT PUMPS
AR-ACF
HEAT PUMPS
HR-AR-AY
HEAT PUMPS
HR-AR
F-ARC
1AR 1CF 1HR 1AY100S 1AY50S 1AY35S
Series
Description
Composition
1
LINK
(+ description
+ quantities and models
for base and any
separate circuit)
HEAT PUMPS
A
CHILLER-HEATERS
HR
CONDENSING BOILERS
AY
HEAT PUMPS
AR
CHILLERS
ACF (no HR)
HEAT PUMPS

Features and technical data
10
1
1.4 HYDRAULIC/GAS CONNECTIONS
Figure1.2Position of connections for a Link of condensing boil-
er only - 2-pipe - Right-hand side view
A Gas connection [1 1/2" F]
B Hot return [2" M]
C Hot delivery [2" M]
D Condensate drain connection [1" F]. Sloping manifold, strictly
connect on right side
A
D
BC
92
184
321
428
530
1392
1888
Figure1.3Position of connections for a Link of condensing boil-
er only - 4-pipe - Right-hand side view
A Gas connection [1 1/2" F]
B Hot return [2" M]
C Hot delivery [2" M]
D Condensate drain connection [1" F]. Sloping manifold, strictly
connect on right side
E Separate boiler hot water inlet [1 1/4" F for AY 35 and AY 50, 1 1/2"
F for AY 100]
F Separate boiler hot water outlet [1 1/4" F for AY 35 and AY 50, 1 1/2"
F for AY 100]
184
321
428
530
1392
1888
92
A
D
BC
EF

Features and technical data
Installation, use and maintenance manual – Link 11
1
Figure1.4Positionofconnectionsfora 2-pipe Link -Right-hand
side view
A Condensate drain connection [1" F] (only for Link with more
than one condensing module). Sloping manifold, strictly con-
nect on right side
B Gas connection [1 1/2" F]
C Hot delivery [2" M]
D Hot return [2" M]
* The height of standard models is 1562 mm
132
255
378
623
1245
1392
1626 (*)
1888
1658
ABCD
Figure1.5Position of connections for a 4-pipe Link with a sin-
gle AY boiler on the separate circuit - Right-hand side
view
A Condensate drain connection [1" F] (only for Link with more than
one condensing module). Sloping manifold, strictly connect on
right side
B Gas connection [1 1/2" F]
C Cold/hot water outlet [2" M]
D Cold/hot water inlet [2" M]
E Separate boiler hot water outlet [1 1/4" F for AY 35 and AY 50, 1 1/2"
F for AY 100]
F Separate boiler hot water inlet [1 1/4" F for AY 35 and AY 50, 1 1/2"
F for AY 100]
* The height of standard models is 1562 mm
132
255
378
623
1245
1392
1626 (*)
1888
1658
AB
EF
C D

Features and technical data
12
1
Figure1.6Position of connections for a 4-pipe Link with several
AY boilers on the separate circuit - Right-hand side
view
A Condensate drain connection [1" F]. Sloping manifold, strictly
connect on right side
B Gas connection [1 1/2" F]
C Cold/hot water outlet [2" M]
D Cold/hot water inlet [2" M]
E Separate boilers hot water inlet [2" M]
F Separate boilers hot water outlet [2" M]
* The height of standard models is 1562 mm
132
255
378
623
868
1113
1245
245
245
245
132
1392
1626 (*)
1888
1658
ABCDEF
Figure1.7Position of connections for a 4-pipe Link of ACF HR
only
A Gas connection [1 1/2" F]
B Cold delivery [2" M]
C Cold return [2" M]
D ACF HR recovery hot return
[2" M]
E ACF HR recovery hot delivery
[2" M]
* The height of standard mod-
els is 1562 mm
255
378
623
245
868
245
1113
245
1245
132
1392
1626 (*)
A B CD E

Features and technical data
Installation, use and maintenance manual – Link 13
1
Figure1.8Position of connections for a Link of GAHP GS/WS -
Right-hand side view
A Condensate drain connec-
tion [1" F]. Sloping manifold,
strictly connect on right side
B Gas connection [1 1/2" F]
C Hot return [2" M]
D Cold return [2" M]
E Hot delivery [2" M]
F Cold delivery [2" M]
1576
1400
132
255
634
961
1106
1245
520
CD
F
E
BA
Figure1.9Position of connections for a 6-pipe Link with a single AY boiler on the separate circuit - Upper view
A Condensate drain connection [1" F] (only for Link with more than
one condensing module). Sloping manifold, strictly connect on
right side
B Gas connection [1 1/2" F]
C Cold/hot water outlet [2" M]
D Cold/hot water inlet [2" M]
E ACF HR recovery hot return (only left connection) [2" M]
F ACF HR recovery hot delivery (only left connection) [2" M]
G Separate boiler hot water inlet [1 1/4" F for AY 35 and AY 50, 1 1/2"
F for AY 100]
H Separate boiler hot water outlet [1 1/4" F for AY 35 and AY 50, 1
1/2" F for AY 100]
132
255
378 245
C D
GH
E
F
A
A
B
B
A
B
132
255
378
1245
245
132
255
378 245 245 245

Features and technical data
14
1
Figure1.10Position of connections for a 6-pipe Link - Upper view
A Condensate drain connection [1" F] (only for Link with more than
one condensing module). Sloping manifold, strictly connect on
right side
B Gas connection [1 1/2" F]
C Cold/hot water outlet [2" M]
D Cold/hot water inlet [2" M]
E ACF HR recovery hot return (only left connection) [2" M]
F ACF HR recovery hot delivery (only left connection) [2" M]
G Separate boilers hot water inlet (right-hand connection only) [2"
M]
H Separate boilers hot water outlet (right-hand connection only)
[2" M]
A
B
BC
D
G
H
E
F
132
255
378
1245
245 245 245 132
132
255
378 245 245 245

Features and technical data
Installation, use and maintenance manual – Link 15
1
1.5 DIMENSIONS AND WEIGHTS
The dimensions are given for the maximum foot-
print conguration. The weights are given for the maximum weight conguration.
Figure1.11Dimensions and weights of a Link with ACF/A/AR (with 2, 3, 4 and 5 units) - front view
A 996 kg
B 1492 kg
C 1989 kg
D 2497 kg
A
B
C
D
423
1554
423
2400
25115541554251
3610
137
155415541554
137
4936
137
1554155415541554
137
6490

Features and technical data
16
1
Figure1.12Dimensions and weights of a Link with AY (with 2 units) - front view
A 262
B 311
C 356
1554
1828
137 137 423 423
423 423
A B
C
1554
2400
1554
2400
Congurations 1 GAHP A + 1 AY 35/AY 50 can be
replaced by Gitié 2.0 AHAY35/AHAY50 appliances.
Congurations 1 GAHP-AR + 1 AY 35/AY 50 can be
replaced by Gitié 2.0 ARAY35/ARAY50 appliances.
Congurations 1 GA ACF + 1 AY 35/AY 50 can be
replaced by Gitié 2.0 ACAY35/ACAY50 appliances.

Features and technical data
Installation, use and maintenance manual – Link 17
1
Figure1.13Dimensions and weights of a Link with 1 ACF/A/AR
+ 1 or 2 AY 35/50 - front and top view
810 kg
1554 423423
2400
Figure1.14Dimensions and weights of a Link with 1 ACF/A/AR
+ 1 AY 100 + 1 AY 35/50 - front and top view
855 kg
423 1554 423
2400
Figure1.15Dimensions and weights of a Link with 1 ACF/A/AR + 1 AY 100 + 2 or 3 AY 35/50 - front and top view
1103 kg
1554 1554
251
3610
251

Features and technical data
18
1
Figure1.16Dimensions and weights of a Link with 2 ACF/A/AR + 1 or 2 AY 35/50 - front and top view
1307 kg
1554 1554
251
3610
251
Figure1.17Dimensions and weights of a Link with 2 ACF/A/AR + 1 AY 100 - front and top view
1210 kg
1554 1554
251
3610
251

Features and technical data
Installation, use and maintenance manual – Link 19
1
Figure1.18Dimensions and weights of a Link with 2 ACF/A/AR + 1 AY 35/50 + 1 AY 100 - front and top view
1352 kg
1554 1554
251
3610
251
Figure1.19Dimensions and weights of a Link with 2 ACF/A/AR + 3 AY 35/50 - front and top view
1476 kg
1554 1554 1554 137
137
4936

Features and technical data
20
1
Figure1.20Dimensions and weights of a Link with 2 ACF/A/AR + 1 AY 100 + 2 AY 35/50 - front and top view
1521 kg
1554 1554 1554 137
137
4936
Figure1.21Dimensions and weights of a Link with 3 ACF/A/AR + 1 or 2 AY 35/50 - front and top view
1800 kg
1554
15541554
137
137
4936