Page 1
Installation, user and
maintenance manual
LCGHP/LSGHP
powered by gas and renewable energies
Air-Water gas absorption heat pump
Page 2
Revision: A
Code: D-LBR724
This manual has been drawn up and printed by Lochinvar; whole or partial reproduction of this manual is
prohibited.
The original is led at Lochinvar.
Any use of this manual other than for personal consultation must be previously authorised by Lochinvar.
The rights of those who have legitimately led the registered trademarks contained within this publication are not
aected.
With the aim of continuously improving the quality of its products, Lochinvar reserves the right to modify the data
and contents of this manual without prior notice.
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Installation, user and maintenance manual – LCGHP/LSGHP
3
INDEX OF CONTENTS
1 PREFACE .................................................................................................................................................. 4
2 SAFETY WARNINGS ................................................................................................................................ 5
2.1 WARRANTY TERMS .....................................................................................................................................................................................................6
3 OVERVIEW AND TECHNICAL FEATURES .............................................................................................. 7
3.1 GENERAL INFORMATION ..........................................................................................................................................................................................7
3.2 NOTES ON OPERATION OF THE APPLIANCE ......................................................................................................................................................8
3.3 TECHNICAL MANUFACTURING CHARACTERISTICS .........................................................................................................................................9
3.4 TECHNICAL DATA ........................................................................................................................................................................................................9
3.5 DIMENSIONS AND SERVICE PANEL .................................................................................................................................................................... 12
4 NORMAL OPERATION .......................................................................................................................... 14
4.1 START UP (AND SHUT DOWN) .............................................................................................................................................................................14
4.2 ON-BOARD ELECTRONICS .....................................................................................................................................................................................15
4.3 RESET OPERATIONS AND MANUAL DEFROSTING ........................................................................................................................................17
4.4 OPERATING SETTINGS ............................................................................................................................................................................................ 18
4.5 PROLONGED PERIODS OF DISUSE ..................................................................................................................................................................... 18
5 HYDRAULIC INSTALLATION ................................................................................................................ 20
5.1 GENERAL INSTALLATION PRINCIPLES ............................................................................................................................................................... 20
5.2 POSITION OF THE APPLIANCE ............................................................................................................................................................................. 20
5.3 HYDRAULIC CONNECTIONS ................................................................................................................................................................................. 22
5.4 GAS SUPPLY ................................................................................................................................................................................................................24
5.5 CONDENSATE DISCHARGE ....................................................................................................................................................................................24
5.6 FILLING OF HYDRAULIC CIRCUIT ........................................................................................................................................................................ 25
5.7 EXHAUST FLUE GAS ................................................................................................................................................................................................. 26
5.8 PROGRAMMING OF HYDRAULIC PARAMETERS.............................................................................................................................................27
6 ELECTRICAL INSTALLATION ............................................................................................................... 29
6.1 ELECTRICAL DIAGRAM OF THE APPLIANCE .................................................................................................................................................... 33
6.2 HOW TO CONNECT THE APPLIANCE ELECTRICALLY .................................................................................................................................... 34
6.3 TYPE A (Comfort Control Panel) ..........................................................................................................................................................................35
6.4 TYPE B (DDC) .............................................................................................................................................................................................................44
6.5 TYPE C (Consent switch) ........................................................................................................................................................................................ 51
6.6 HOW TO RESET THE FLAME CONTROLLER FROM REMOTE ....................................................................................................................... 52
7 INITIAL ACTIVATION AND MAINTENANCE ........................................................................................ 54
7.1 PROCEDURE FOR FIRST START UP ...................................................................................................................................................................... 54
7.2 MAINTENANCE .......................................................................................................................................................................................................... 57
7.3 CHANGE OF GAS TYPE............................................................................................................................................................................................58
8 OPERATING CODES/TROUBLESHOOTING ......................................................................................... 60
8.1 OVERVIEW AND OPERATING CODES/TROUBLESHOOTING .......................................................................................................................60
DECLARATION OF CONFORMITY ............................................................................................................. 63
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1 PREFACE
4
1 PREFACE
This Installation, user and maintenance manual is a guide to the installation and operation of the Air-Water gas absorption heat
pump "LCGHP/LSGHP".
This manual is specically intended for:
▶
nal users for the operation of the appliance according to their own requirements;
▶
Installation technicians (hydraulic and electrical) for a correct installation of the appliance.
The manual also contains:
▶
a section that describes all the operations necessary for the “rst start-up” and for the “gas change” of the appliance, as well as the
main maintenance operations;
▶
an "ACCESSORIES" section with a description of accessories available and their respective reference codes.
▶
(IN CASE) one or more APPENDIX sections in which are reported some "specic" information for a particular country.
References
If the appliance is connected to a Comfort Control Panel (see detail CCP in Figure 6.3p.31) it is switched on and controlled by the
Comfort Control Panel. In this case, refer to the manual supplied with it.
If the appliance is connected to a Direct Digital Controller (see Figure 6.4p.32) and the DDC is in controller mode, activation and
control of the appliance will occur exclusively by operating the DDC. In this case, refer to the manual supplied with it.
Denitions, terms and icons
APPLIANCE: this term refers to the Air-Water gas absorption heat pump "LCGHP/LSGHP".
CCP: "Comfort Control Panel".
CCI: "Comfort Control Interface" device.
DDC: digital control panel (Direct Digital Controller).
TAC: Technical Assistance Centre (authorised by Lochinvar).
The icons in the edge of the manual have the following meanings:
= DANGER
= WARNING
= NOTE
= START OF OPERATING PROCEDURE
= REFERENCE to another part of the manual or other document
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2 SAFETY WARNINGS
Installation, user and maintenance manual – LCGHP/LSGHP
5
2 SAFETY WARNINGS
Packing items (plastic bags, polystyrene foam, nails, etc.) must be kept out of the reach of children, as they are potentially
dangerous.
The appliance must only be used for the purposes for which it has been designed. Any other use is considered inappropriate
and therefore dangerous. The manufacturer does not accept any contractual or extra-contractual liability for any damage
caused by improper use of the appliance.
The appliance is not intended to be used by persons (including children) whose physical, sensory and mental capacities are
impaired, or who lack the necessary experience and knowledge, unless they are supervised or instructed in its use by persons responsible for their safety. Children must be supervised to ensure that they do not play with the appliance.
The unit uses a water/ammoniac absorption cycle for hot water production. The ammoniac is in water solution inside a
sealed circuit tested for tightness by the manufacturer. In case of coolant leaks, switch o the electrical power and gas supplies only if this can be done in total safety. Contact your Technical Assistance Centre.
Frequent topping up of the hydraulic with water can result in damage due to scale and corrosion, depending on the quality
of the water being used. Make sure the system is water tight and that the expansion tank is operational.
Concentrations of chlorides or free chlorine in the circuit above the values given in Table 5.1p.23 will damage the unit's
water/ammonia exchanger.
Close the gas supply before working on the gas circuit. On completing work on the gas circuit, check for leakages as required
by established regulations.
Do not operate the appliance if dangerous conditions exist: odour of gas in the grid or near the appliance; problems with the
electrical/gas grid or hydraulic circuit; parts of the appliance submerged in water or otherwise damaged; controls or safety
components bypassed or defective. In these cases, ask for assistance to professionally qualied personnel.
If you smell gas:
▶
do not use electrical devices such as telephones, multimeters or other equipment that can cause sparks next to the appliance;
▶
shut o gas supply closing the isolation valve;
▶
cut o electrical power opening the main breaker upstream of the appliance (to be provided by the electrical installer in an appropriate panel);
▶
ask for assistance to professionally qualied personnel from a telephone distant from the appliance.
Moving parts, also during the appliance's start-up and shut-down cycles. Do not remove guards. Make sure the appliance
cannot be started up inadvertently.
POISONING HAZARD
Make sure the ue gas components are tight and compliant with established regulations. After any intervention on these parts,
check for tightness.
BURN HAZARD
The appliance contains numerous hot parts. Do not open up the appliance or touch the fumes outlet pipe. If necessary, contact your
Technical Assistance Centre.
The appliance has a sealed circuit classied as pressure equipment, i.e. with internal pressure higher than atmospheric pressure. The uids contained in the sealed circuits are harmful if swallowed or inhaled, or if they come into contact with the skin.
Do not carry out any operation on the sealed circuit or on its valves.
ELECTROCUTION HAZARD
▶
Use only approved components for the electrical connections, as specied by the manufacturer.
▶
Disconnect the electrical power supply before working on the appliance's internal electrical equipment (electrical panel, motors,
control board, etc.).
▶
Make sure the appliance cannot be started up inadvertently.
The electrical safety of the appliance is ensured only when it is correctly connected to an ecient grounding system, compilant with current safety regulations.
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2 SAFETY WARNINGS
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DAMAGE DUE TO AGGRESSIVE SUBSTANCES IN THE AIR SUPPLY
Hydrocarbons containing chlorine and uorine compounds, will increase corrosion. Make sure the air supply is free of aggressive
substances.
ACID CONDENSATE
Drain out the condensate produced during combustion as indicated in paragraph 5.5p.24.
EXPLOSIVE/FLAMMABLE MATERIALS HAZARD
Do not use or store ammable materials (paper, solvents, paint, etc.) in the vicinity of the appliance.
RECOMMENDATION. Stipulate a maintenance contract with an authorised specialist contractor for the annual inspection
of the appliance and maintenance when needed. Maintenance and repairs may only be done by a contractor legally authorised to work on gas appliances and equipment. Use only original spare parts.
2.1 WARRANTY TERMS
Warranty can be invalidated by each one of the following conditions:
▶
faulty installation
▶
improper use
▶
failure to follow the manufacturer’s indications about installation, use and maintenance
▶
alteration or modication of the product or any part
▶
operational conditions extreme or however outside of the operational ranges dened by the manufacturer
▶
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 by the plant or installation to the appliance (mechanical stresses, vibrations, thermal expansions,
overvoltages…)
▶
incidental damages or force majeure
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3 OVERVIEW AND TECHNICAL FEATURES
Installation, user and maintenance manual – LCGHP/LSGHP
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3 OVERVIEW AND TECHNICAL FEATURES
In this section you will nd general information, hints on the operating principle of the appliance and its manufacturing features. This
section also contains technical data and dimensional drawings of the appliance.
3.1 GENERAL INFORMATION
This manual is an integral and essential part of the product and must be delivered to the user together with the appliance.
Conformity to CE standards
The absorption heat pumps of the LCGHP/LSGHP series are certied as conforming to standard EN 12309-1 and -2 and comply with
the essential requirements of the following Directives:
▶
Gas Directive 90/396/EEC and subsequent modications and additions.
▶
Eciency Directive 92/42/EEC and subsequent modications and additions.
▶
Electromagnetic Compatibility Directive 89/336/EEC and subsequent modications and additions.
▶
Low Voltage Directive 89/336/EEC and subsequent modications and additions.
▶
Machinery Directive 2006/42/EC.
▶
Pressurised Equipment Directive 97/23/EEC and subsequent modications and additions.
▶
UNI EN 677 Specic requirements for condensing boilers with nominal thermal capacity up to 70 kW.
▶
EN 378 Refrigerating systems and heat pumps.
The absorption heat pumps of the LCGHP/LSGHP series emit values of nitrogen oxide (NOx) less than 60 mg/kWh in line with
the prescriptions of the RAL UZ 118 "Blauer Engel".
Information regarding the above EC certications is given in Paragraph 3.4 p. 9, as well as on the Nameplate of the appliance
itself.
Installation and regulatory references
On receiving the appliance at the installation site, before placing into nal position, check there are no signs of transportation damages of the external panels or packaging.
Packing materials must be removed only after the appliance has been positioned on site. After removing the packing materials, ensure that the appliance is intact and complete.
Installation of the appliance may only be carried out by professionally qualied personnel by i.e. rms qualied according to the current legislation of the country of installation.
"Professionally qualied personnel" means personnel with specic technical competence in the sector of heating/cooling
installations and gas appliances.
Installation of the appliance must be carried out in compliance with current local and national regulations regarding the design,
installation and maintenance of heating and cooling installations and in accordance with the manufacturer's instructions.
In particular, current regulations regarding the following must be observed:
▶
Gas equipment.
▶
Electrical equipment.
▶
Heating installations and heat pumps.
▶
Every other standard and regulation concerning the installation of equipment for summer and winter air conditioning using gas
fuel.
The manufacturer does not accept any contractual or extra-contractual liability for any damage caused by errors in installation and/
or failure to observe the abovementioned regulations and the instructions supplied by the manufacturer itself.
Once the appliance is installed
The installer must provide the owner with a Declaration stating that the installation has been completed in compliance with
state-of-the-art practices, current national and local regulations, and recommendations by the manufacturer.
Before contacting your authorised Lochinvar Technical Assistance Centre (TAC) for the ini tial activation, the rm must ensure that:
▶
the electricity and gas grids characteristics correspond to the specications on the nameplate of the appliance;
▶
the gas supply pressure is compliant with the value reported in Table 5.2p.24 (considering a tolerance of ±15%);
▶
the appliance is fed by the type of gas for which it is designed;
▶
the gas supply system and water distribution system are sealed;
▶
the gas and electricity supply systems are properly rated for the capacity required by the appliance and are equipped with all
safety and control devices required by current regulations
Check that no safety and control devices are excluded, by-passed or not properly working.
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3 OVERVIEW AND TECHNICAL FEATURES
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Initial activation procedure
The complete procedure for the rst start up of the appliance must be carried out by an authorized technician according to the
instructions supplied by the manufacturer.
To carry out entire procedure correctly, follow the instructions in Paragraph 7.1p.54.
Warranty could be invalidated if the rst start up is not carried out and validated by an authorized technician.
Operation and maintenance of the appliance
To ensure the correct operation of the appliance and to avoid failures, control of the switching on and o of the appliance must be
done in line with the requirements of the various types of installation.
▶
If the appliance is connected to the Comfort Control Panel (see Figure 6.3p.31 detail CCP), the appliance may be switched on
and o exclusively by the CCP itself.
▶
If the appliance is connected to the DDC (see Figure 6.4p.32), the appliance may be switched on and o exclusively by the
DDC itself.
▶
If the appliance is NOT connected to a CCP/DDC, the appliance may be switched on and o exclusively by a switch on the consent
circuit.
The appliance must never normally be switched on and o by shutting o the power supply upstream of the Controle
Device (CCP, DDC or consent switch) before having used the latter rst and waited for the shutdown cycle to end (approximately 7 minutes). The shutdown cycle terminates when the hydraulic pump switches o (no parts in motion).
Shutting o the power supply while the appliance is running can cause permanent damages to internal components!
If the appliance fails to operate correctly, with the consequent indication of the Machine code, follow the instructions of Paragraph
8.1p.60.
In the event of failure of the appliance and/or breakage of any component, do not attempt to repair and/or restore opera-
tion; proceed as follows:
▶
shut o the appliance immediately (if possible and if no dangerous condition exists) through the controls (CCP, DDC or permissive switch) and wait for the end of the cooling down cycle (around 7 minutes);
▶
immediately get in touch with Technical Assistance.
Proper ordinary maintenance ensures the eciency and good operation of the appliance over time.
Carry out maintenance operations according to the instructions supplied by the manufacturer.
For the maintenance of internal components of the appliance, contact Technical Assistance; for other maintenance requirements,
see Paragraph 7.2p.57.
Any repair of the appliance must be carried out by Technical Assistance, using only original spare parts.
Failure to observe the indications above may compromise the operation and safety of the appliance, and may invalidate
warranty.
If the appliance is to be disposed of, contact the manufacturer for its correct disposal.
If the appliance is to be sold or transferred to another owner, ensure that this “Installation, user and maintenance manual” is
handed over to the new owner and installer.
3.2 NOTES ON OPERATION OF THE APPLIANCE
The appliance uses the water/ammonia absorption thermodynamic cycle (H20 – NH3) to produce hot water, using atmospheric air
as renewable energy source.
The water/ammonia thermodynamic cycle used in the unit LCGHP/LSGHP is realized in a hermitically sealed circuit, directly veried
by the manufacturer to ensure the perfect tightness of all joints, thus making refrigerant top-ups completely unnecessary.
Description and general characteristics
The air-water gas absorption heat pump LCGHP/LSGHP is available in the following versions:
▶
Version HT: optimised for high temperature distribution systems (radiators, fan coils); it produces hot water up to +65°C in heating mode and up to +70°C in Domestic Hot Water mode.
▶
Version LT : optimised for low temperature distribution systems (heating oor, low temperature radiators); it produces hot water
up to +55°C in heating mode and up to +70°C in Domestic Hot Water mode.
The fan can be:
▶
low consumption (LCGHP): reduction of the electrical consumption and reduction of noise emissions
▶
standard (LSGHP)
The LCGHP/LSGHP heat pump can be controlled with the CCP/DDC or with a switch on the consent circuit.
During operation, combustion products are exhausted via the discharge terminal at the left side of the appliance (see Figure 1.1p.
or Figure 3.2p.13). The fumes outlet must be connected to a ue (for further details, see Paragraph 5.7p.26).
The appliance powered by 230 V 1N 50 Hz electrical power - .
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3.3 TECHNICAL MANUFACTURING CHARACTERISTICS
The appliance is supplied with the following technical manufacturing characteristics, control and safety components:
▶
Steel sealed circuit, externally treated with epoxy paint.
▶
Sealed combustion chamber suited for type C installation.
▶
Metal mesh radiant burner equipped with ignition electrodes and ame detection managed by an electronic ame control box.
▶
Titanium stainless steel shall-and-tube heat exchanger, with external insulation.
▶
Recovery heat exchanger (AISI 304L).
▶
Air heat exchanger with single-row nned coil, manufactured with steel pipes and aluminium ns.
▶
Automatic microprocessor-controlled two-ways defrosting valve.
Control and safety components
▶
S61 electronic board with integrated microprocessor, LCD display and control knob, complete with Mod10 auxiliary card to control thermal capacity and primary pump modulation (see Figures 6.1p.29 and 6.2p.30).
▶
Water owmeter.
▶
Sealed circuit high temperature limit thermostat, with manual reset.
▶
Flue temperature thermostat 120 °C, with manual reset.
▶
Sealed circuit safety relief valve.
▶
Safety by-pass valve, between high and low pressure parts of the sealed circuit.
▶
Antifreeze functions for hydraulic circuit.
▶
Ionization ame control box.
▶
Double shutter electric gas valve.
▶
Condensate discharge sensor.
3.4 TECHNICAL DATA
Table 3.1 – Technical data LCGHP-42-HT / LSGHP-42HT
LCGHP-42LT LSGHP-42LT
OPERATION WHEN HEATING
OPERATING POINT A7W50
G.U.E. gas usage eciency % 151 (1)
Thermal power kW 38,0 (1)
OPERATING POINT A7W35
G.U.E. gas usage eciency % 165 (1)
Thermal power kW 41,7 (1)
Thermal capacity
Nominal (1013 mbar - 15°C) kW 25,7
true peak kW 25,2
NOx emission class 5
NOx emission ppm 25
CO emission ppm 36
Hot water delivery temperature
maximum for heating °C 55
maximum for DHW °C 70
Hot water return temperature
maximum heating °C 45
maximum for DHW °C 60
minimum in continuous operation (11) °C 20
Hot water ow rate
nominal l/h 3000
maximum l/h 4000
minimum l/h 1400
Hot water pressure drop nominal water pressure (A7W50) bar 0,43 (2)
Ambient air temperature (dry bulb)
maximum °C 40
minimum °C -15 (7)
Thermal dierential nominal °C 10
gas consumption
methane G20 (nominal) m3/h 2,72 (3)
methane G20 (MIN) m3/h 1,34
G25 (nominal) m3/h 3,16 (9)
G25 (MIN) m3/h 1,57
G30 (nominal) kg/h 2,03 (4)
G30 (MIN) kg/h 0,99
G31 (nominal) kg/h 2,00 (4)
G31 (MIN) kg/h 0,98
ELECTRICAL SPECIFICATIONS
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3 OVERVIEW AND TECHNICAL FEATURES
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LCGHP-42LT LSGHP-42LT
Power supply
Voltage V 230
TYPE SINGLE PHASE
Frequency 50 Hz supply 50
Electrical power absorption
nominal kW 0,83 (5) 0,90 (5)
minimum kW 0,56 (5) -
Degree of protection IP X5D
INSTALLATION DATA
Sound power Lw (max) dB(A) 75,3 (8) 82,1 (8)
Sound power Lw (min) dB(A) 72,3 (8) Sound pressure Lp at 5 metres (max) dB(A) 53,3 (10) 60,1 (10)
Sound pressure Lp at 5 metres (min) dB(A) 50,3 (10) Minimum storage temperature °C -30
Maximum water pressure in operation bar 4
Maximum ow ue condensate l/h 4
Water content inside the apparatus l 4
Water tting
TYPE F
thread " G 1 1/4
Gas tting
TYPE F
thread " G 3/4
Fume outlet
Diameter (∅) mm 80
Residual head Pa 80
Size
width mm 848 (6)
depth mm 1258
height mm 1537 (6) 1281 (6)
Weight In operation kg 400 390
Required air ow m3/h 11000
Fan residual head Pa 40
GENERAL INFORMATION
INSTALLATION MODE B23P, B33, B53P
COOLING FLUID
AMMONIA R717 kg 7
WATER H2O kg 10
MAXIMUM PRESSURE OF THE COOLING CIRCUIT bar 32
** in transient operation, lower temperatures are allowed
Notes:
1. As per EN12309-2 evaluated on actual thermal capacity. For operating conditions other than nominal, refer to the Design
Manual.
2. For ow rates dierent from the nominal refer to the Design Manual.
3. PCI 34.02 MJ/m3 (1013 mbar – 15 ° C).
4. PCI 46.34 MJ/kg (1013 mbar – 15 ° C).
5. ± 10% depending on power voltage and absorption tolerance of electric motors.
6. Overall dimensions excluding fumes pipes (see Figure 1.1p. and Figure 3.2p.13).
7. As an option, a version for operation down to -30 °C is available.
8. Sound power values measured according to EN ISO 9614.
9. PCI 29.25 MJ/m3 (1013 mbar – 15 ° C).
10. Maximum sound pressure values in free eld, with directionality factor 2, obtained from sound power level in compliance with
norm EN ISO 9614.
11. Maximum sound pressure values measured in free eld, direction factor 2, according to EN 3744.
Table 3.2 – Technical data LCGHP-40-HT / LSGHP-40HT
LCGHP-40HT LSGHP-40HT
OPERATION WHEN HEATING
OPERATING POINT A7W50
G.U.E. gas usage eciency % 152 (1)
Thermal power kW 38,3 (1)
OPERATING POINT A7W65
G.U.E. gas usage eciency % 124 (1)
Thermal power kW 31,1 (1)
OPERATING POINT A-7W50
G.U.E. gas usage eciency % 127 (1)
Thermal power kW 32,0 (1)
Thermal capacity
Nominal (1013 mbar - 15°C) kW 25,7
true peak kW 25,2
NOx emission class 5
NOx emission ppm 25
CO emission ppm 36
Hot water delivery temperature
maximum for heating °C 65
maximum for DHW °C 70
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LCGHP-40HT LSGHP-40HT
Hot water return temperature
maximum heating °C 55
maximum for DHW °C 60
minimum in continuous operation (11) °C 30
Hot water ow rate
nominal l/h 3000
maximum l/h 4000
minimum l/h 1400
Hot water pressure drop nominal water pressure (A7W50) bar 0,43 (2)
Ambient air temperature (dry bulb)
maximum °C 40
minimum °C -15 (7)
Thermal dierential nominal °C 10
gas consumption
methane G20 (nominal) m3/h 2,72 (3)
methane G20 (MIN) m3/h 1,34
G25 (nominal) m3/h 3,16 (9)
G25 (MIN) m3/h 1,57
G30 (nominal) kg/h 2,03 (4)
G30 (MIN) kg/h 0,99
G31 (nominal) kg/h 2,00 (4)
G31 (MIN) kg/h 0,98
ELECTRICAL SPECIFICATIONS
Power supply
Voltage V 230
TYPE SINGLE PHASE
Frequency 50 Hz supply 50
Electrical power absorption
nominal kW 0,83 (5) 0,90 (5)
minimum kW 0,56 (5) -
Degree of protection IP X5D
INSTALLATION DATA
Sound power Lw (max) dB(A) 75,3 (8) 82,1 (8)
Sound power Lw (min) dB(A) 72,3 (8) Sound pressure Lp at 5 metres (max) dB(A) 53,3 (10) 60,1 (10)
Sound pressure Lp at 5 metres (min) dB(A) 50,3 (10) Minimum storage temperature °C -30
Maximum water pressure in operation bar 4
Maximum ow ue condensate l/h 4
Water content inside the apparatus l 4
Water tting
TYPE F
thread " G 1 1/4
Gas tting
TYPE F
thread " G 3/4
Fume outlet
Diameter (∅) mm 80
Residual head Pa 80
Size
width mm 848 (6)
depth mm 1258
height mm 1537 (6) 1281 (6)
Weight In operation kg 400 390
GENERAL INFORMATION
INSTALLATION MODE B23P, B33, B53P
COOLING FLUID
AMMONIA R717 kg 7
WATER H2O kg 10
MAXIMUM PRESSURE OF THE COOLING CIRCUIT bar 32
** in transient operation, lower temperatures are allowed
Notes:
1. As per EN12309-2 evaluated on actual thermal capacity. For operating conditions other than nominal, refer to the Design
Manual.
2. For ow rates dierent from the nominal refer to the Design Manual.
3. PCI 34.02 MJ/m3 (1013 mbar – 15 ° C).
4. PCI 46.34 MJ/kg (1013 mbar – 15 ° C).
5. ± 10% depending on power voltage and absorption tolerance of electric motors.
6. Overall dimensions excluding fumes pipes (see Figure 1.1p. and Figure 3.2p.13).
7. As an option, a version for operation down to -30 °C is available.
8. Sound power values measured according to EN ISO 9614.
9. PCI 29.25 MJ/m3 (1013 mbar – 15 ° C).
10. Maximum sound pressure values in free eld, with directionality factor 2, obtained from sound power level in compliance with
norm EN ISO 9614.
11. Maximum sound pressure values measured in free eld, direction factor 2, according to EN 3744.
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3 OVERVIEW AND TECHNICAL FEATURES
12
Table 3.3 – PED data
LCGHP-40HT LCGHP-42LT
PED data
COMPONENTS UNDER
PRESSURE
Generator l 18,6
Leveling chamber l 11,5
Evaporator l 3,7
Cooling volume transformer l 4,5
Cooling absorber solution l 6,3
Solution pump l 3,3
TEST PRESSURE (IN AIR) bar g 55
MAXIMUM PRESSURE OF THE COOLING CIRCUIT bar g 32
FILLING RATIO
kg of
NH3/l
0,146
FLUID GROUP GROUP 1°
3.5 DIMENSIONS AND SERVICE PANEL
Figure 3.1 – Size LSGHP (Standard ventilation)
Front and side views (dimensions in mm).
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Figure 3.2 – Dimensions LCGHP (low consumption ventilation)
Front and side views (dimensions in mm).
Figure 3.3 – Service plate
A
B
Hydraulic/gas unions detail
LEGEND
G Gas tting Ø ¾” F
B Inlet water tting Ø 1¼” F
A Outlet water tting Ø 1¼” F
Page 14
4 NORMAL OPERATION
14
4 NORMAL OPERATION
In this section you will nd all the indications necessary for the activation, regulation and control of operation of the appliance depending on the type of installation and control setup.
▶
TYPE A: controlled by CCP (see Figure6.3p.31, detail CCP).
▶
TYPE B: controlled by DDC (see Figure 6.4p.32).
▶
TYPE C: controlled by consent switch (e.g. on-o switch, ambient thermostat, timer, etc.).
4.1 START UP AND SHUT DOWN
Ecient operation and long life of the appliance depend largely on its correct use!
Before activating the appliance, check that:
▶
the gas valve is open;
▶
the appliance is powered electrically: the general electrical switch (GS) must be in the «ON» position;
▶
power supply to the CCP/DDC (if provided) is on;
▶
the installation technician has ensured that the hydraulic circuit is supplied in the correct conditions.
If these conditions are satised, it is possible to proceed with activation.
TYPE A: APPLIANCE CONNECTED TO COMFORT CONTROL PANEL (CCP)
If the appliance is connected to a Comfort Control Panel (see detail CCP in Figure 6.3p.31) it is switched on and controlled by the
Comfort Control Panel. In this case, refer to the manual supplied with it.
The appliance must never normally be switched on and o by shutting o the power supply upstream of the Comfort
Control Panel before having used the latter rst and waited for the shutdown cycle to end (approximately 7 minutes). The
shutdown cycle terminates when the hydraulic pump switches o (no parts in motion).
Shutting o the power supply while the appliance is running can cause permanent damages to internal components!
TYPE B: APPLIANCE CONNECTED TO A DIRECT DIGITAL CONTROLLER (DDC)
If the appliance is connected to a Direct Digital Controller (see Figure 6.4p.32) and the DDC is in controller mode, activation and
control of the appliance will occur exclusively by operating the DDC. In this case, refer to the manual supplied with it.
The appliance must never normally be switched on and o by shutting o the power supply upstream of the DDC before
having used the latter rst and waited for the shut down cycle to end (approximately 7 minutes). The shutdown cycle terminates when the hydraulic pump switches o (no parts in motion).
Shutting o the power supply while the appliance is running can cause permanent damages to internal components!
TYPE C: STANDALONE APPLIANCE
Stand alone appliances must be activated and deactivated only by means of the consent switch provided by the electrical installation technician.
According to requirements, this consent switch may be an on/o button, an ambient thermostat, a programmable timer, or one or
more voltage free contacts controlled by another process. For details about the type of on/o command installed, contact the plant’s
electrical installation technician.
The appliance must never normally be switched on and o by shutting o the power supply upstream of the Controle
Device (CCP, DDC or consent switch) before having used the latter rst and waited for the shutdown cycle to end (approximately 7 minutes). The shutdown cycle terminates when the hydraulic pump switches o (no parts in motion).
Shutting o the power supply while the appliance is running can cause permanent damages to internal components!
Start up
Switch on the appliance by means of the on/o command (placing it in the "ON" position).
Shut down
Switch o the appliance via the on/o command (placing it in the "OFF" position).
The shutdown cycle takes approximately 7 minutes to complete.
The on/o command is essential! Do not switch the appliance on or o by connecting it to or disconnecting it from the
power supply directly, as this may be a source of danger and in any case damage the appliance or the plants connected to it.
Visualising and clearing of operating codes
Operating codes can be generated:
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▶
by the S61 on-board controller;
▶
by the CCP/DDC (if present).
The operating codes generated by the S61 controller are displayed on its screen and can also be viewed on the CCI (if present) or
DDC (if present).
Operating codes generated by the controller can be cleared through the board itself or from the CCI/DDC (if tted and allowed).
For a description of the operating codes generated by the electronic board and how to reset them, refer to the list of operating codes contained in Table 8.1p.60.
The controller (see Figure 6.1p.29) is located inside the electrical panel of the appliance and the display may be viewed
through the viewing hole on the front panel of the unit itself.
The Machine Codes generated by the CCI/DDC may only be viewed on the display of the CCI/DDC and may be cleared only
through the CCI/DDC.
For the operating codes generated by the CCP/DDC, refer to the manuals supplied with the unit.
Operating codes generated by the electronic board during the start-up of the appliance
If the appliance remains inactive for a prolonged period, it is possible that air is present in the gas pipes. In this case, activation fails
and the appliance reports the operating code: "u_12" - ame controller arrest (temporary) (see Paragraph 8.1p.60) and after a
brief interval the appliance automatically launches the start up procedure again. If code (u_12) is signalled 4 times on successive
activation attempts, the code persists, the appliance locks out the ame controller and displays the following operating code: "E_12"
– ame controller arrest (see Paragraph 8.1p.60). In this case reset is not automatic.
To restore operation of the appliance, carry out a reset of the ame control unit via menu 2 of the controller: the procedure is illustrated in Paragraph 4.3p.17. After it is reset, the appliance will make a new attempt to activate.
If the appliance locks out several times, contact a TAC.
When activation is successful, the appliance is managed by the on-board controller (see following paragraph).
4.2 ONBOARD ELECTRONICS
The following descriptions refer to the S61 controller with rmware version 3.026.
The appliance is tted with an S61 microprocessor controller with Mod10 modulation controller mounted above it (see Figure
4.1p.15).
The S61 controller, in the electrical panel, controls the appliance and displays data, messages and operating codes.
Programming, control and monitoring of the appliance take place by interacting with the display A and knob B shown in Figure
4.1p.15. The CAN-BUS port connects one or several appliances to the CCP (if present) or a DDC (if present).
The Mod10 controller (see detail D in Figure 4.1p.15) is used for combustion modulation and variable rate pump control.
Figure 4.1 – On-board controller
S61 + Mod10
LEGEND
A 4 digit display
B Knob
C CAN port
D Mod10 controller
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16
Description of menu of S61 controller
The parameters and settings of the appliance are grouped in the menus shown on the controller’s display:
Table 4.1 – Menu of electronic board
MENU MENU DESCRIPTION THE DISPLAY SHOWS
Menu 0 VIEW DATA (TEMPERATURE, VOLTAGE, PUMP SPEED, ECC...) 0.
Menu 1 VIEW ALL PARAMETERS 1.
Menu 2 ENTER ACTIONS 2.
Menu 3 USER SETTINGS (THERMOSTATING, SET-POINT, T. DIFFERENTIAL) 3.
Menu 4 INSTALLATION TECHNICIAN SETTINGS 4.
Menu 5 TECHNICAL ASSISTANCE CENTRE SETTINGS 5.
Menu 6 TECHNICAL ASSISTANCE CENTRE SETTINGS (MACHINE TYPE) 6.
Menu 7 VIEW DIGITAL IMPUTS 7.
Menu 8 (MENU NOT USED) 8.
E EXIT MENU E.
Menu list of electronic board
Menus 0, 1 and 7 are Viewing Menus: they only allow the information displayed to be read, and not modied. Menu 0 shows the appliance operating data in real time. Menu 1 shows the parameters that characterise the operation of the appliance and their current
values.
Menu 7 is to be used ONLY by the TAC.
To view the information contained in these menus, proceed as illustrated in the paragraph "How to acces the menus".
Menu 2 is an execution menu: it allows the operations of resetting the ame control unit, error reset and the manual defrosting command to be performed.
To perform these procedures, see Paragraph 4.3p.17.
Menu 3 is a Settings Menu: it allows the values displayed to be set. The correct values of these parameters, for optimum performance
of the appliance with the plant to be used connected, have already been set during installation. To set new values for the parameters,
see Paragraph 5.8p.27.
Menus 4, 5, 6 and 7 exclusively concern the installation technician and Technical Assistance.
Menu 8 may currently be selected, but not used.
Display and knob
The controller’s display can be viewed through the glass of the viewing aperture on the front panel of the appliance.
Upon activation, all of the LEDs of the display light up for approximately three seconds, and then the name of the board, S61, appears. After around 15 seconds after the appliance powers up, the appliance starts running if the required consent is available.
During correct operation the display shows, alternately, the following information: outlet water temperature, inlet water temperature, and the dierence between the two water temperatures (see Table 4.2p.16).
Table 4.2 – Operating information
OPERATING MODE: HEATING
PARAMETER THE DISPLAY SHOWS
Hot outlet water temperature 50.0
Hot inlet water temperature 40.0
Dierential Temperature (outlet - inlet) 10.0
Example of data visualised on display: water temperature and dierential
If there are operating problems, the display shows, sequentially, the operating codes corresponding to the problem detected. A list
of these codes with their description and the procedure to follow to bring the appliance back to correct operation is provided in
Paragraph 8.1p.60.
The knob is used to display or set parameters, or to execute actions/commands (e.g.: a function or reset), when permitted.
HOW TO ACCESS THE MENUS
▶
To use the knob with the special key supplied with the appliance:
You will need: the appliance's electrical power switches set to "ON"; the controller's display sequentially shows the operating data (temperature, delta T) regarding the current mode (e.g.: heating) and any active operating codes ("u/E...").
1. Remove the front panel by removing the xing screws.
2. Remove the cover of the electrical panel to access the knob.
3. Use the special key through the hole to operate the knob and access the controller’s menus and parameters.
4. To display the menus just press the knob once: the display shows the rst menu: "0." (= menu 0).
5. The display shows “0.”. To display the other menus, turn the knob clockwise; The display will read, in order: "1.", "2.", "3.", "4.", "5.",
"6.", "7.", "8." and "E" (see Table 4.1p.16).
6. To display the parameters in a given menu (for example, menu 0), turn the knob until it displays the menu in question (in the
example: "0.") and press the knob: the display will show the rst of the menu’s parameters, in this example "0.0" or "0.40" (=
menu 0, parameter "0" or "40").
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7. In the same way: turn the knob to scroll through content (menus, parameters, actions), press the knob to select/conrm the
content (access a menu, display/set a parameter, execute an action, quit or return to the previous level). For example, to quit
the menus, turn the knob to scroll through menus "0.", "1.", "2." etc. until the controller displays the quit screen "E"; now press
the knob to quit.
In the case of menus 0 and 1, the user can view any parameter. For information about menu 2, refer to Paragraph 4.3p.17.
To set the parameters of me nu 3, refer to Paragraph 5.8p.27. The other menus are not for the User: the information in
these menus is dealt with in the sections dedicated to the installation technician or TAC.
The special key allows the knob of the electronic board to be operated without opening the cover of the electrical panel, so
that operators are protected from live components. When the necessary settings have been completed, put away the special
key, replace the cap on the aperture of the electrical panel and ret the front panel of the appliance.
4.3 RESET OPERATIONS AND MANUAL DEFROSTING
There are several possible reasons why the appliance may have error status and therefore its operation arrested; such an error situation does not necessarily correspond to damage or malfunction on the part of the appliance. The cause that has generated the error
may be temporary: for example, presence of air in the gas supply line or temporary power failure.
The appliance can be reset with controller menu 2, the Comfort Control Panel (if present) or the DDC (if present). In these two latter
cases, refer to their documentation.
Reset appliance controller
The Table 4.3p.17 shows the actions available in menu 2.
For regulatory reasons, the ame controller reset is in a dedicated voice of menu.
Table 4.3 – Menu 2
ACTION REQUIRED FOR EXECUTION SHOWN ON DISPLAY AS
20 Reset ame controller arrest 2. 20
21 Reset other operating codes 2. 21
22 Manual defrost 2. 22
23 Timed forcing to minimum power 2. 23
24 Timed forcing to maximum power 2. 24
25 Stop power forcing 2. 25
E (EXIT MENU) 2. E
The general operating codes of the controller can be reset with functions "20" and "21".
Actions "23", "24" and "25" are used to regulate the combustion parameters or for gas type changeovers, and are thus for use only by
the installation technician or TAC (for other information refer to Paragraph 7.1p.54).
RESET FLAME CONTROLLER (ACTION "20"):
Reset ame controller arrest; this may be used when the appliance is rst activated, see Paragraph 4.1p.14, when the appliance is
in a permanent locked condition or after a long period of disuse (see Paragraph 4.5p.18).
You will need: access to the electrical panel, see Paragraph "Display and knob".
To reset the ame control unit select menu 2, as indicated in the Paragraph "Accessing the Menus"; then proceed as follows:
1. The display shows: "2." press the knob to access the menu. The display initially shows item "2. 20".
2. Press the knob to display the ashing reset request: "reS1".
3. Press the knob again to reset the ame controller. The reset request stops ashing, and again the display shows "2. 20". The
reset operation has been performed.
4. To quit the menu, turn the knob clockwise until the "2. E" is displayed. Now press the knob to return to menu selection: "2.".
5. To exit the menu selection and return to the normal visualisation of the parameters of the appliance, turn the knob clockwise
until "E" displays; press the knob to quit.
At this point, if the display does not signal any other operating codes, put away the special key, replace the electrical panel
cover and ret the front panel.
RESET OTHER OPERATING CODES (ACTION "21"):
Reset other appliance errors; this is required to reset any errors which may occur during operation.
You will need: access to the electrical panel, see Paragraph "Display and knob".
To reset the controller errors, select menu 2, as indicated in the Paragraph "Accessing the Menus"; Then:
1. The display shows: "2." press the knob to access the menu. The display initially shows item "2. 20".
2. Turn the knob clockwise to display item "2. 21".
3. Press the knob to display the ashing reset request: "rEr1".
4. Press the knob again to perform a board error reset. The reset request stops ashing, and the again display shows "2. 21". The
reset operation has been performed.
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18
5. To quit the menu, turn the knob clockwise until the "2. E" is displayed. Now press the knob to return to menu selection: "2.".
6. To exit the menu selection and return to the normal visualisation of the parameters of the appliance, turn the knob clockwise
until "E" displays; press the knob to quit.
At this point, if the display does not signal any other operating codes, put away the special key, replace the electrical panel
cover and ret the front panel.
ACTION "22"
DEFROSTING (ACTION "22"):
Manual defrosting; the execution of the manual defrosting command, provided that the conditions exist (these are veried electronically), allows the fan coil to be defrosted, overriding software control regarding the timing of this operation.
Defrosting mode is managed automatically by the on-board electronics and is activated only under specic operating conditions (the on-board electronics verify the appropriate requirements).
You will need: access to the electrical panel, see Paragraph "Display and knob".
To execute the manual defrosting command, select menu 2, as indicated in the Paragraph "Accessing the Menus"; then:
1. The display shows: "2." press the knob to access the menu. The display initially shows item "2. 20".
2. Turn the knob clockwise to display "2. 22".
3. Press the knob to display the manual defrosting ashing request: "deFr".
4. Press the knob again to execute the command. The manual defrosting request stops ashing, and the again display shows "2.
22". The manual defrosting opera tion has been performed (if the appropriate requirements are satised).
5. To quit the menu, turn the knob clockwise until the "2. E" is displayed. Now press the knob to return to menu selection: "2.".
6. To exit the menu selection and return to the normal visualisation of the parameters of the appliance, turn the knob clockwise
until "E" displays; press the knob to quit.
At this point, if the display does not signal any other operating codes, put away the special key, replace the electrical panel
cover and ret the front panel.
4.4 OPERATING SETTINGS
The operations described require basic knowledge of the plant installed and of the S61 controller tted to the appliance; before
proceeding, you must acquire this informa tion, Paragraph 4.2p.15.
At the moment of installation, the appliance is set up by the installation technician for best operation according to the type
of plant installed. Subsequently it is possible to modify the operating parameters, but this is not recommended if not in possession of the necessary knowledge and experience in order to do so. In any case, to set new operating parameters for the
appliance see Paragraph 5.8p.27.
4.5 PROLONGED PERIODS OF DISUSE
When the appliance is to be inactive for a long period, it is necessary to disconnect the appliance before the period of disuse and
reconnect it before it is used again.
To carry out these operations, contact a reputable hydraulic system installation technician.
Disconnecting the appliance
You will need: the appliance connected to the power/gas supply. Necessary equip ment and materials.
1. If the appliance is in operation, switch it o with the CCP (if present) or DDC (if present), or the consent switch and wait for the
shutdown cycle to terminate completely (approximately 7 minutes).
2. Disconnect the appliance from the power supply, putting the external disconnection switch in the OFF position (see GS in
Figure 6.7p.35) provided in the appropriate panel by the installation technician.
3. Close the gas valve.
Do not leave the appliance connected to power and gas supply if it is expected to remain inactive for a long period.
If you wish to disconnect the appliance during the winter, one of the following two conditions must be met:
1. make sure that the hydraulic plant connected to the appliance contains an adequate percentage of glycol antifreeze (see Paragraph 5.6p.25 and Table 5.3p.26);
2. activate the antifreeze function, which runs the circulation pumps and the appliance when water temperature is below 4°C or
in case the outdoor temperature is lower than 2 °C. To do this, contact your installer. This function requires the appliance to be
ALWAYS powered up (electricity and gas) and power failures excluded. Otherwise the manufacturer declines all contractual
and extra-contractual liability for consequent damage.
Connecting the appliance before it is used again (to be carried out by the instal ler)
Before starting this procedure, the hydraulic system installation technician must:
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▶
ascertain whether the appliance requires any maintenance operations (contact your authorised Technical Assistance Centre or
consult Paragraph 7.2p.57);
▶
check that the water content of the plant is correct; if necessary, top up the circuit to at least the minimum quantity (see Paragraph 5.6p.25);
▶
if necessary add, to the water of the system (free of impurities), inhibited monoethylene glycol antifreeze in a quantity in proportion to the MINIMUM winter temperature in the area of installation (see Table 5.3p.26);
▶
bring the plant to the correct pressure, making sure that the pressure of the water in the plant is not less than 1 bar and not over
2 bar;
In case of winter saesonal switch-o or long period of stopping, we suggest to not empty the hydraulic circuit: in that case
possible oxidation process can occur.This oxidation process could damage both the hydraulic system and also the Lochinvar
heat pump.It’s important to verify that no leakages occur in the hydraulic circuit that may empty part of the system. The
above recommendation is necessary in order to avoid to ll continuously with water that may imply the additional introduction of oxygen and the consequent dilution of the used inhibitor, for ex glycol. In case of precence of glycol, Lochinvar
advices to use inhibited glycol. Galvanized pipes are not recommended, as they are not compatible with glycol.
You will need: the appliance disconnected from the electricity/gas supply
1. open the plant gas supply valve to the appliance and make sure that there is no smell of gas (indicating possible leaks);
if you smell gas, close the gas valve again immediately without operating any other electrical device and, from a safe place,
request the assistance of professionally qualied personnel.
2. If no smell of gas is detected, connect the appliance to the electricity supply mains via the external circuit breaker provided
by the installation technician in the appropriate panel (set the "GS" circuit breaker to the "ON" position, see Figure 6.7p.35);
3. power up the CCP (if present) or DDC (if present);
4. check that the hydraulic circuit is charged;
5. Check that the condensate discharge is clean;
6. check that exhaust duct is not obstructed;
7. switch on the appliance by means of the on/o command (or DDC if present and in control mode, or via CCP, if present).
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5 HYDRAULIC INSTALLATION
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5 HYDRAULIC INSTALLATION
In this section you will nd all the instructions necessary for the hydraulic installation.
Before realizing hydraulic system and gas supply for the appliance, the professionally qualied personnel is advised to read
Paragraph 3.1p.7, providing important recommendations about safety and references to current regulations.
5.1 GENERAL INSTALLATION PRINCIPLES
Prior to installation, carry out careful internal cleaning of all pipes and every other component to be used both on the hydraulic system and on the fuel supply, in order to remove any debris that may compromise the operation of the appliance.
Installation of the appliance must be carried out in compliance with current regulations regarding design, installation and maintenance of heating and cooling plants and must be undertaken by professionally qualied personnel in accordance with the manufacturer’s instructions.
During the installation stage, observe the following indications:
▶
Check that there is an adequate mains gas supply, in accordance with the manufacturer’s specications; see Table 5.2p.24 for
the correct supply pressures.
▶
The appliance must be installed outdoors, located in an area in which air circulates naturally and which does not require any
particular protection from the weather. In no case must the appliance be installed inside a room.
▶
The front of the appliance must have a minimum clearance of 80 cm from walls or other xed constructions; the right and left
sides must have a minimum clearance of 45 cm; the minimum rear clearance from walls is 60 cm. (see Figure 5.2p.22).
▶
No obstruction or overhanging structure (roofs, eaves, balconies, ledges, trees) shall interfere either with the exhaust air owing
from the top of the appliance or with the exhaust ue gas.
▶
The appliance must be installed in such a way that the exhaust ue gas outlet is not in proximity of any external air inlet of a
building. Respect current regulations regarding the exhaust ue gas outlet.
▶
Do not install the appliance close to ues, chimneys or other similar structures, in order to prevent hot or polluted air from being
drawn by the fan through the condenser. In order to function correctly the appliance must use clean air from the environment.
▶
If the appliance is installed near buildings, make sure it is not on the dripping line from gutters or similar.
▶
Fit a gas cock on the gas supply line.
▶
Fit antivibration joints on the hydraulic connections.
5.2 POSITION OF THE APPLIANCE
Lifting the appliance and placing it in position
Do not remove packaging during handling on the installation site.
Packing must only be removed upon nal installation.
If the appliance has to be lifted, pass slings into the openings in the base supports and use spreader bars to prevent the slings from
damaging the casing during handling (see Figure 5.1p.21).
The lifting crane and all accessory devices (braces, cables, bars) must be suitable sized for the load to be lifted. For the weight
of the appliance, consult Table 3.1p.9 or Table 3.2p.10.
The manufacturer cannot be held responsible for any damage that occurs during the installation of the appliance.
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Figure 5.1 – Instruction for lifting
The appliance can be installed at ground level, on a terrace or on a roof (if compatible with its “dimensions” and “weight”).
The dimensions and weight of the appliance are given in Table 3.1p.9 or Table 3.2p.10.
MOUNTING BASE
Always place the appliance on a levelled at surface made of reproof material and able to support the weight of the appliance.
In addition, provide a small “containing” step that will prevent water from spreading during possible winter defrosting phases.
During winter operation, the appliance (depending on temperature and humidity conditions of the outdoor air) can carry
out defrosting cycles melting the layer of frost/ice on the coil.
Take this possibility into consideration, adopting appropriate measures (for example: a“containing” step and channelling of water
into a suitable drain) in order to prevent "uncontrolled" spread of water around the appliance and the consequent risk that a layer of
ice will form (with the danger of falls on the part of passing people).
The manufacturer may not be held responsible for any damage arising from failure to observe this warning.
Installation at ground level
If a horizontal support base is unavailable (see also "SUPPORTS and LEVELLING" below), it is necessary to create a at level base in
concrete which is larger than the dimensions of the base of the appliance by at least 100-150 mm on each side.
The dimensions of the appliance are given in Table 3.1p.9 or Table 3.2p.10.
Provide a “containing” step and a suitable drainage channel for the water.
Installation on a terrace or roof
Position the appliance on a levelled at surface made of reproof material (see also "SUPPORTS and LEVELLING" below).
The structure of the building must support the total weight of the appliance and the supporting base.
The weight of the appliance is given in Table 3.1p.9 or Table 3.2p.10.
Create a “containing” step and a suitable drainage channel for the water, providing a gangway around the appliance for maintenance
purposes.
Although the appliance produces only moderate vibrations, the use of anti-vibration supports is especially recommended in rooftop
and terrace installations in which resonance phenomena may occur.
Moreover, it is advisable to use exible connections (anti-vibration joints) between the appliance and the hydraulic and gas supply
pipes.
Avoid placing the appliance on the roof directly above locals requiring quietness.
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22
SUPPORTS AND LEVELLING
The appliance must be correctly levelled by placing a spirit level on the upper part.
If necessary, level the appliance with metal shimming; do not use wooden spacers as these deteriorate quickly.
CLEARANCES AND WARNINGS
Position the appliance so as to maintain minimum clearances from combustible surfaces, walls or other appliances, as illustrated in
Figure 5.2p.22.
Minimum clearances are required for maintenance accessibility.
The fumes outlet terminals must be installed in such a way that they do not allow the fumes to collect or return to the circuit in the
unit's installation area. The outlet terminal must be constructed in conformity with established regulations.
Do not install any cover or obstruction to the evacuation of the air issuing from the fan.
When deciding on the installation position, especially if multiple units are used, consider that each unit requires 11,000 m3/h of air
for the coil. Make sure that the installation and position allow for sucient air ow to the coil and prevent recirculation, which would
reduce eciency and shut-down the appliance of the units and force them to switch o.
Figure 5.2 – Clearances
Place the appliance preferably far from environments where silence is required, such as bedrooms, meeting rooms, etc.
Evaluate the noise impact of the appliance with respect to the installation site: avoid placing the appliance in locations (such as corners of buildings) where noise could be amplied (reverberation eect).
5.3 HYDRAULIC CONNECTIONS
General indications
▶
The hydraulic installation may be realized using pipes in stainless steel, black steel, copper or crosslinked polyethylene for heating/cooling applications. All water pipes and pipe connections must be properly insulated in compliance with current regulations to prevent heat losses and outer condensation.
▶
To prevent icing in the primary circuit during winter time, the appliance is provided with antifreeze functions activating the water
circulation pump of the primary circuit (if controlled by the appliance) and the burner of the appliance itself (when necessary). It
is therefore necessary to ensure a permanent supply of electricity and gas to the appliance throughout the whole winter period.
If it is not possible to ensure a permanent supply of electricity and gas to the appliance, use glycol antifreeze of the inhibited
monoethylene type.
▶
If glycol antifreeze is to be used (see Paragraph 5.6p.25), DO NOT USE galvanised pipes, as they are potentially subject to corrosion phenomena in the presence of glycol.
▶
If using rigid pipes, use vibration damping couplings at the water and gas connections on the appliance's service plate to prevent
vibration.
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As other hydronic appliances, Lochinvar heating systems operate with grid-water of good quality. In order to prevent any possible
problem of operation or reliability caused by lling or top-up water, please refer to codes and norms about water treatment for
thermo-hydraulic installations in civil or industrial applications. Parameters indicated in Table 5.1p.23 must be complied with.
Table 5.1 – Chemical and physical parameters of water
CHEMICAL AND PHYSICAL PARAMETERS OF WATER IN HEATING/COOLING
SYSTEMS
PARAMETER
UNIT OF
MEASUREMENT
ALLOWABLE RANGE
pH \ >7
(1)
Chlorides mg/l < 125
(2)
Total hardness (CaCO
3)
°f < 15
°d < 8.4
Iron mg/kg < 0.5
(3)
Copper mg/kg < 0.1
(3)
Aluminium mg/l < 1
Langelier’s index \ 0-0,4
HARMFUL SUBSTANCES
Free chlorine mg/l < 0.2
(3)
Fluorides mg/l < 1
Sulphides ABSENT
1 with aluminium or light alloys radiators, pH must also be lower than 8 (in compliance with applicable rules)
2 value referred to the maximum water temperature of 80 °C
3 in compliance with applicable rules
Water quality can be measured through parameters like acidity, hardness, conductivity, chlorides content, chlorine content, iron
content and the like.
The presence of free chlorine in the water, in particular, can jeopardize parts of the installation and Lochinvar units. Therefore, please make sure that free chlorine content and total hardness are compliant with the allowable ranges reported in
Table 5.1p.23.
The way the installation is operated can be the cause of possible degradation of water quality.
Moreover, abnormally massive water top-up or reintegration can cause a drift of chemical or physical above-mentioned parameters.
Reintegration should not exceed 5% per year of the total amount of water. It is advised to check regularly the water quality, especially
in case of automatic or periodic top-up.
In case water treatment is needed, this operation should be carried out by a professional or competent person, following strictly the
instructions by the manufacturer or supplier of the chemical substances for the treatment, since dangers could arise for health, for
the environment and for appliances.
Several products for water treatment are available on the market.
Lochinvar does not perform detailed market surveys, therefore suggests to contact Companies which are specialized in water treatments. They will be able to suggest the best way how to proceed according to the type of installation.
In case washing of the pipes is needed, this operation should be carried out by a professional or competent person, following strictly
the instructions by the manufacturer or supplier of the chemical substances for the washing, avoiding the use of substances aggressive for stainless steel or containing/releasing free chlorine.
Please make sure the pipes are properly rinsed in order to remove any residue of chemical substances from the pipes.
Manufacturer is not liable for ensuring that water quality is always compliant with what reported in Table 5.1p.23. Non-compliance with indications above may jeopardize the proper operation, integrity and reliability of Lochinvar appliances, invalidating the
warranty.
For any further detail, please contact directly Lochinvar.
The components below are always to be tted in proximity to the appliance:
▶
FLEXIBLE JOINTS on water and gas connections of the appliance.
▶
PRESSURE GAGES on the inlet and outlet water pipes.
▶
FLOW REGULATION VALVE on the water inlet pipe (only if the appliance is controlled by a CCP/DDC).
▶
WATER FILTER installed on the water inlet pipe.
▶
ISOLATION BALL VALVE on the water and gas pipes of the installation.
▶
3 BAR SAFETY VALVE installed on the outlet water pipe.
▶
PLANT EXPANSION TANK installed in the appliance outlet water pipe.
▶
EXPANSION TANK for the individual appliance, installed on the water outlet pipe (primary side). Provide a plant expansion tank
in any case (secondary side), installed in the water outlet pipe.
The appliance is not equipped with an expansion tank; therefore it is necessary to install a suitable expansion tank, sized for
the maximum temperature range and maximum operating water pressure of the plant.
▶
variable rate WATER CIRCULATION PUMP, FOR PLANT WITH A SINGLE APPLIANCE, located on the water inlet pipe of the appliance,
owing towards the appliance.
▶
variable rate WATER CIRCULATION PUMP, FOR PLANT WITH A SEVERAL APPLIANCES (each appliance have is pump), owing towards the appliance.
Page 24
5 HYDRAULIC INSTALLATION
24
▶
PLANT FILLING SYSTEM: if automatic lling systems are used, a seasonal check of the percentage of monoethylene glycol in the
plant is recommended.
For further information or technical support in this regard, contact Lochinvar.
The operations necessary for the First Activation or Regulation of the appliance must be carried out exclusively by an authorised Lochinvar Technical Assistance Centre (TAC). These operations are described in Section 7p.54).
The products' guarantee is void if initial activation is not carried out by a Lochinvar TAC.
5.4 GAS SUPPLY
The installation of gas supply pipes must be compliant with current regulations and norms.
The gas supply pressure must be in the range given in Table 5.2p.24.
Supplying gas to the appliance at pressures higher than those indicated above can damage the gas valve, resulting in dangerous situations.
LPG systems must be equipped with a rst stage pressure reducer close to the LPG storage tank, in order to reduce the gas pressure
to 1,5 bar, and a second stage pressure reducer, close to the unit, in order to reduce pression from 1,5 bar to the value in agreement
with the gas network pressure of the country of installation (see Table 5.2p.24).
Exemple for the Italian market: for the G30 gas, from 1,5 bar to 0,030 bar (30mbar); for the G31 gas, from 1,5 bar to 0,037 bar
(37mbar).
LPG may cause corrosion; piping and tting materials must be resistant to this corrosion.
Vertical gas pipes must be equipped with a siphon and provided with a drain for the con densate that may form inside the pipe during cold periods. It may also be necessary to insulate the gas pipe to prevent the formation of excessive condensate.
In any case, provide an isolation valve (ball valve) on the gas supply line, to isolate the appliance when required.
Table 5.2 – Network gas pressure
Gas supply pressure
Product categories Countries of destination G20 [mbar] G25 [mbar] G30 [mbar] G31 [mbar]
G25.1
[mbar]
G27 [mbar] G2,350 [mbar]
II
2H3B/P
AL, BG, CY, CZ, DK, EE, FI, GR,
HR, IT, LT, MK, NO, RO, SE,
SI, SK, TR
20 30 30
AT, CH 20 50 50
II
2H3P
AL, BG, CZ, ES, GB, HR, IE, IT,
LT, MK, PT, SI, SK, TR
20 37
RO 20 30
II
2ELL3B/P
DE 20 20 50 50
II
2Esi3P
FR 20 25 37
II
2HS3B/P
HU 25 30 30 25
II
2E3P
LU 20 50
II
2L3B/P
NL 25 50 50
II
2E3B/P
PL
20 37 37
II
2ELwLs3B/P
20 37 37 20 13
II
2ELwLs3P
20 37 20 13
I
2E(S); I3P
BE 20 25 37
I
3P
IS 30
I
2H
LV 20
I
3B/P
MT
30 30
I
3B
30
For data regarding hourly fuel consumption of the appliance, refer to Table 3.1p.9 or Table 3.2p.10.
5.5 CONDENSATE DISCHARGE
The fumes condensate outlet is on the left of the appliance.
The distance L between the coupling C and the base may not exceed 110 mm.
1. The condensate discharge corrugated pipe, coming out from the side of the underbase left support, must be connected to a
proper discharge header.
2. The connection between the pipe and the manifold must remain visible.
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25
Figure 5.3 – Position of condensate discharge and manual reset fumes thermostat
A
B
D
L
LEGEND
A Condensate discharge hose
B Fumes thermostat manual reset
D Corrugated hose
The condensate discharge to the sewer must be:
▶
sized so as to discharge the maximum condensation ow (see Table 3.1p.9 or Table 3.2p.10);
▶
made of materials resistant to acidity with pH 3 to 5;
▶
sized to ensure a slope of 10 mm per metre of length; if this slope cannot be achieved, a condensate pump must be installed
near to the discharge;
▶
realized in such a way as to prevent icing of the condensate;
▶
mixed, for example, with domestic euents (washing machine, dishwasher, etc.), usually alkaline, acting as a buer solution
before discharging into the sewer.
Do not discharge the condensate into the guttering, since it may ice and corrode the materials normally used for gutters.
5.6 FILLING OF HYDRAULIC CIRCUIT
After having completed all hydraulic, gas and electrical connections, the installer can proceed lling the hydraulic circuit, observing
the following steps:
You will need: the appliance connected hydraulically and electrically.
1. Activate the automatic air purging valves of the plant and open all thermostatic valves.
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5 HYDRAULIC INSTALLATION
26
2. Fill the hydraulic circuit with clean water and add, if necessary, the proper quantity of monoethylene glycol according the
minimum winter temperature in the installation site (see table 5.3p.26).
3. Check the lter on the return pipe for impurities; clean it if necessary.
4. Bring the plant to the correct pressure, making sure that the water pressure is not less than 1 bar and not over 2 bar, and run
the circu lation pump for at least 30 minutes. Check the water lter again and clean it if necessary.
To facilitate the operation of bleeding air from the hydraulic circuit, the appliance is equipped with an additional manual air
bleeding valve.
Possible use of glycol antifreeze
Glycols, normally used to lower the freezing point of water, are substances in an intermediate state of oxidation which, in the presence of oxidising agents such as oxygen, are transformed into corresponding acids. This transformation into acids increases the
corrosive nature of the uid contained in the circuit. For this reason, mixtures that are commercially available almost always contain
inhibiting substances that are able to control the pH of the solution. A condition necessary for the oxidation and degradation of
glycol is the presence of an oxidising agent such as oxygen. In closed circuits in which no replenishment of water (and therefore of
oxygen) occurs over time, once the oxygen initially present has reacted, the degenerative phenomenon of glycol is hugely inhibited.
Most circuits, however, are of the non-sealed type, and therefore receive a more or less continuous supply of oxygen.
Therefore it is essential, whatever type of glycol is in question, to verify that it is adequately inhibited and that the necessary checks
are regularly performed during its entire period of use.
Antifreeze liquids for cars, which do not contain inhibiting components other than ethylene glycol, are not recommended
for cooling and heating plants.
The manufacturer does not accept any contractual or extra-contractual liability for damages caused by the use or disposal
of glycol antifreeze.
It is equally important to recall that the use of monoethylene glycol modies the thermophysical characteristics of the water in the
plant, and in particular its density, viscosity and average specic heat. Always check the date of expiry and/or degradation of the
product with the supplier.
In the Table 5.3p.26 the approximate freezing temperature of the water-glycol mixture and the consequent increase in pressure
drops of the appliance are shown, according to the percentage of monoethylene glycol.
This Table 5.3p.26 should be taken into account for the sizing of the pipes and the circulation pump (for calculation of internal
pressure drops of the appliance, refer to the Table 3.1p.9 or Table 3.2p.10).
Nevertheless, it is advisable to consult the technical specications of the monoethylene glycol used. If automatic loading systems are
used, a seasonal check of the quantity of glycol present in the plant is also necessary.
Table 5.3 – Technical data for lling the hydraulic circuit
GLYCOL % 10 15 20 25 30 35 40
WATER-GLYCOL MIXTURE FREEZING TEMPERATURE -3°C -5°C -8°C -12°C -15°C -20°C -25°C
PERCENTAGE OF INCREASE IN PRESSURE DROPS -- 6% 8% 10% 12% 14% 16%
LOSS OF EFFICIENCY OF UNIT -- 0,5% 1% 2% 2,5% 3% 4%
If the percentage of glycol is ≥ 30% (for ethylene glycol) or ≥ 20% (for propylene glycol):
▶
then parameter 182 in menu 4 must be set to “1” (at the installer’s care).
5.7 EXHAUST FLUE GAS
The appliance is homologated for the discharge of the exhaust gases directly outside through a ue pipe.
Each single unit is provided with a connection of Ø 80 mm (equipped with a suitable seal) located on the left side (see Figure 1.1p.
or Figure 3.2p.13).
The appliance is complete with an exhaust duct kit, to be tted by the installer.
The exhaust duct kit consists of (see Figure 5.4p.27):
▶
n. 1 exhaust ue pipe Ø 80mm (length 300 mm) complete with terminal;
▶
n. 1 rain cover;
▶
n. 1 90° elbow Ø 80 mm.
To assemble and t the external exhaust fumes installation kit, proceed as follows:
You will need: the appliance positioned in its installation site (refer to Figure 5.4p.27).
1. Fit the rain cover (C) on the 90° elbow (A).
2. Fit the 90° elbow (A) to the clamp on the left side of the appliance.
3. Fit the terminal/pipe assembly (B) to the elbow (A).
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27
Figure 5.4 – Fume outlet
A
B
C
5.8 PROGRAMMING OF HYDRAULIC PARAMETERS
The operations described in this paragraph are necessary only if the appliance is not connected to a DDC or to a CCP.
If the appliance is connected to a CCP/DDC, follow the instructions given in the CCP/DDC manuals exclusively.
This paragraph explains how to set the hydraulic parameters on the electronic board of the appliance. Users not familiar with the
basic procedures for the use of the board should refer to Paragraph 4.2p.15.
To congure the appliance, access menu 3 of the electronic board.
With regard to the hydraulic conguration, three parameters may be set: select the letter E to exit to the previous menu.
Table 5.4 – Menu 3 parameters
HYDRAULIC PARAMETER THE DISPLAY SHOWS
Hot water thermostat control selection 3.160
Hot water setpoint 3.161
Hot water temperature dierential 3.162
(EXIT MENU) 3. E
Description of parameters:
▶
Hot water thermostat control, parameter 160. This parameter takes two values: "0" and "1". Value "0" indicates that the appliance's
"activation/deactivation" temperature is to be read by the water probe at the appliance’s INTAKE. Value "1" indicates that the appliance’s "activation/deactivation" temperature is to be read by the water probe at the appliance’s OUTLET.
▶
Water set-point, parameter 161: this parameter sets the water temperature that, when reached, causes the appliance to be deactivated (when the power modulation is not active - parameter 181)
▶
Water dierential, parameter 162: this parameter represents an interval in degrees that, when added to the set-point, denes the
temperature at which the appliance is reactivated. This parameter is used only if the power modulation is NOT active (parameter
181).
LEGEND
A Curve 90° Ø 80
B Pipe Ø 80 Lg.300 mm w/terminal
C rain cover
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5 HYDRAULIC INSTALLATION
28
The appliance functions by heating the water until it reaches the set-point temperature. At this point, if the power modulation is not
active (parameter 181), it switches o. The temperature of the water goes down again until it reaches the temperature corresponding
to "set-point + dierential"; when this is reached the appliance switches on again.
Example:
Thermostating: reading from inlet sensor.
Parameter 181: 0 (power modulation NOT active)
Set-point: +40.0°C
Dierential: - 2.0° C
▶
The appliance is functioning: the water in the plant heats up until it reaches the set-point temperature = +40°C.
▶
The appliance switches o: the water in the plant, returning from use, becomes progressively cooler, until it reaches a temperature of 38°C = 40°C - 2°.
▶
The appliance switches on again, and the plant water heats up again.
▶
The cycle is repeated.
The following procedure illustrates in detail how to congure the parameters on the electronic board inside the appliance.
If the procedures for how to access the knob and menus are not familiar, see paragraphs "Display and knob" and "How to access the
menus" and following.
To set the parameters of menu 3:
You will need: the appliance on and access to the electrical panel, see "Display and knob".
Access menu 3. The display shows the rst parameter of the menu, number 160.
1. Turn the knob clockwise to scroll through the parameters: 3.160, 3.161, 3.162; lastly the letter E is shown.
2. Press the knob when a parameter is displayed to select it, or when E is displayed to exit the menu.
3. For example, to set parameter 161 (hot water set-point), proceed as follows:
· Select the parameter: turn the knob until the display shows 3.161;
· Press the knob to access the value of the parameter; the display shows the previously set value, which ashes, for example 40.0 °C;
· Turn the knob to modify the value of the parameter;
· Press the knob to conrm the value selected; the display shows the current parameter again, 3.161. The new value for this parameter
has been set.
4. If other parameters are to be modied, proceed as described previously, and then exit from the menu by pressing the knob
on the letter E.
To exit the menu, turn the knob clockwise until E is displayed, then press it to conrm. For details regarding the codes displayed by
the appliance during operation, see Paragraph 8.1p.60.
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6 ELECTRICAL INSTALLATION
This section illustrates the operations to perform for the correct electrical installation of the appliance, and contains electrical diagrams that may be of use in the event of maintenance operations.
Installation of the appliance may only be carried out by rms that are qualied in accordance with current legislation in the country
of installation, i.e. by professionally qualied personnel.
Before proceeding with operations to create the electrical plant of the appliance, the professionally qualied personnel concerned
are advised to read Paragraph 3.1p.7: it provides important information regarding installation safety and references to current
norms.
Installation that is incorrect or that does not comply with current legislation may cause damage to people, animals or things;
Lochinvar is not responsible for any damage caused by installation that is incorrect or that does not comply with current
legislation.
Figure 6.1p.29 and Table 6.1p.29 provide details of input and ouput of the S61 electronic board. The auxiliary electronic card
Mod10 is shown in detail in Figure 6.2p.30.
The appliance and the system can be controlled and regulated in one of the following ways depending on the type of installation
and control system selected:
▶
TYPE A: controlled by CCP (see Figure6.3p.31, detail CCP).
▶
TYPE B: controlled by DDC (see Figure 6.4p.32).
▶
TYPE C: controlled by consent switch (e.g. on-o switch, ambient thermostat, timer, etc.).
In Paragraph 6.1p.33 may be found the Electrical diagrams of the appliance.
Figure 6.1 – Electronic board S61
SCH S61
Table 6.1 – Electronic board S61
CODE DESCRIPTION
SCH1 Electronic board S61
SCH3 Mod10 electronic controller (see gure for further details)
A1, A2 Auxiliary inputs
ENC Knob
F1 Fuse T 2A
F2 Fuse F 10A
F3 Fuse T 2A
F4 Fuse T 3.15A
FAN (BK, WH, BR) Fan output
FS5 (24V AC) Controller power 24-0-24 Vac
IGN.BOX (L, N) Flame controller power 230 V AC
J1 CAN BUS jumper
J10 Jumper N.O. contact
J82 W10 board connector (on Mod10)
LEGEND
See table below
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6 ELECTRICAL INSTALLATION
30
CODE DESCRIPTION
JP10 6-pole ame controller connector
JP12 Fumes sensor or generator n sensor input
JTA G S61 controller programming connector
MAIN 230V (L, N) S61 controller power 230 V AC
N.O. contact Pump contact, N.O.
P7 (R, W, Y, o) Consent inputs
P8 (GND, L, H) CAN BUS connector
PUMP 230V (L, N) Hydraulic pump power output
SPI Communication port with Mod10 controller
SRT1 Hydraulic pump rotation sensor input
SRT2 Hot water owmeter input
TA Ambient temperature probe input
TA1 Input probe of evaporator output
TA2 Not used
TCN Combustive air temperature probe input
TF Exhausted gas thermostat input
TG Generator temperature probe input
THMF Hot water delivery temperature probe input
THRF Hot water return temperature probe input
TL Generator limit thermostat input
SCH S61
Figure 6.2 – Mod10 controller
Mod10 controller
LEGEND
HFLOW Not used
CFLOW Condensation water sensor control
J51 SPI connector
HPMP Primary circuit hot water pump control
output (0-10 V )
CPMP Low consumption fan control output
(0-10V)
NC1-C1 Status indication of locking warnig/error
CN5 Blower control
J82 W10 auxiliary controller connector
J83 W10 cable shielding connection W10
CN1 Inputs 0-10V (not used)
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31
Figure 6.3 – Comfort Control Panel e Accessory
LEGEND
CCP Comfort Control Panel
Components componing the CCP
AVS37 Comfort Control Siemens
RVS61 System controller and set-point
CCI Comfort Control Interface
PLC Programmable Logic Control
AVS75 Expansion
Optional components to predict
QAA55 Base room unit
QAA75 Room unit
QAA78 Radio room unit
ASV71 Antenna
AVS13 Transmitter
QAC34 External temperature probe
LPS Central communications for remote control
Page 32
6 ELECTRICAL INSTALLATION
32
Figure 6.4 – CCI/DDC
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33
6.1 ELECTRICAL DIAGRAM OF THE APPLIANCE
Figure 6.5 – Wiring diagram of the appliance with standard fan (LSGHP)
LEGEND
SCH1 S61 circuit board
SCH2 W10 circuit board
SCH3 Mod10 circuit board
TER Appliance power terminal block
CNTBOX Flame controller
PWRTR Board transformer
BLW Blower
PMP Hydraulic pump
IGNTR Ignition transformer
IGN Ignition electrodes
FLS Flame sensor
LS Gas valve ON indicator lamp
GV Gas solenoid valve
TC Manual fumes thermostat
TL Generator limit thermostat
FM Flowmeter
CWS Condensation water sensor
VD Defrosting valve
FAN Fan
C Fan condenser
(not present on silenced units)
FS Condensate hose heating element
THRC Hot water return temperature sensor
THMC Hot water delivery temperature sensor
TMIX Combustion air temperature sensor
TA Ambient air temperature sensor
TG Generator temperature sensor
TF Fumes temperature sensor or genera-
tor n sensor
TEVA Evaporator outlet temperature sensor
TK Condensate discharge heating element
thermostat
MA Terminal block
REED Hydraulic pump rotation sensor
Page 34
6 ELECTRICAL INSTALLATION
34
Figure 6.6 – Wiring diagram of the appliance with low consumption fan (LCGHP)
LEGEND
SCH1 Controller S61
SCH2 W10 circuit board
SCH3 Mod10 circuit board
TER Appliance power terminal block
CNTBOX Flame controller
PWRTR Board transformer
BLW Blower
PMP Hydraulic pump
IGNTR Ignition transformer
IGN Ignition electrodes
FLS Flame sensor
LS Gas valve ON indicator lamp
GV Gas solenoid valve
TC Manual fumes thermostat
TL Generator limit thermostat
FM Flowmeter
CWS Condensation water sensor
VD Defrosting valve
FAN Fan
CF Filter capacitor
FS Condensate hose heating element
THRC Hot water return temperature sensor
THMC Hot water delivery temperature sensor
TMIX Combustion air temperature sensor
TA Ambient air temperature sensor
TG Generator temperature sensor
TF Fumes temperature sensor or genera-
tor n sensor
TEVA Evaporator outlet temperature sensor
TK Condensate discharge heating element
thermostat
MA Terminal block
REED Hydraulic pump rotation sensor
6.2 HOW TO CONNECT THE APPLIANCE ELECTRICALLY
Before making electrical connections, make sure not to work on live elements.
You will need: the appliance in its permanent location.
1. Use a cable type FG7(O)R 3Gx1.5 for the power supply to the appliance.
2. Connect power supply with the cable indicated at point 1, tting close to the appliance a two-pole isolator switch with 3 mm
distance between contacts (see detail «GS» in Figure 6.7p.35) and two 5A fuses type T or a 10A magnetothermic breaker.
3. Prepare the electrical connection in such a way that the ground wire is longer than the live wires. In this way it will be the last
wire to be torn away if the cable is accidentally pulled o; this will ensure the ground connection.
Electrical safety is ensured only when the appliance is correctly connected to an ecient grounding system, realized according to current safety regulations. Do not use gas pipes as grounding.
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35
Figure 6.7 – Electrical wiring diagram
Example of connection of appliance to 230 V 1 N - 50 Hz electricity supply
6.3 TYPE A COMFORT CONTROL PANEL
This paragraph illustrates the operations to be performed when one or more appliances are connected to a Comfort Control
Panel (CCP). In particular:
1. What is the CAN BUS cable.
2. How to connect the CAN BUS cable to the appliance's electronic board
3. How to connect the CAN BUS cable to the Comfort Control Panel
4. How to connect the Comfort Control Panel
5. How to connect the plant water circulation pump.
For specic information regarding the operation and programming of the CCP, refer to the specic manuals supplied with it.
The appliance and the CCP communicate with each other via a CAN bus network.
The CAN bus network is characterized by a series of elements (appliances or CCPs) called nodes, connected to each other by a threewire cable. The nodes are of two types: terminal nodes and intermediate nodes.
▶
Terminal nodes are appliances or CCPs that are connected to one other element only.
▶
Intermediate nodes are appliances or controllers which are connected to two other elements.
The diagram in Figure 6.8p.36 gives an example of a CAN BUS network: 3 appliances are connected to each other and to 1 CCP. Appliance D and the CCP (A) are terminal nodes, while appliances C and B are intermediate nodes as they are connected to 2 elements.
One CCP can control up to 3 appliances of the same type.
LEGEND
TER terminal board
L phase
N neutral
Components NOT SUPPLIED
GS general switch
Page 36
6 ELECTRICAL INSTALLATION
36
Figure 6.8 – Example of CAN BUS
LEGEND
A Controller
B-C-D Appliance
1-4 Terminal nodes
2-3 Intermediate nodes
Terminal nodes and intermediate nodes
What is the CAN BUS cable
The cable to be used must be suitable for CAN BUS applications.
The following table gives details of some types of CAN BUS cables, grouped according to the maximum distance covered by each
single type.
Table 6.2 – CAN BUS cables type
CABLE NAME SIGNAL / COLOR MAX LENGTH Note
Robur
Ordering Code OCVO008
ROBUR NETBUS H= BLACK L= WHITE GND= BROWN 450 m
Honeywell SDS 1620
In all cases the fourth conductor should not be used
BELDEN 3086A
H= BLACK L= WHITE GND= BROWN 450 m
TURCK type 530
DeviceNet Mid Cable
TURCK type 5711 H= BLUE L= WHITE GND= BLACK 450 m
Honeywell SDS 2022
TURCK type 531 H= BLACK L= WHITE GND= BROWN 200 m
For total distances lower than 200 m and networks with a maximum of 4 nodes (example: up to 3 units + 1 controller) a
simple shielded cable 3x0.75 mm may be used.
As shown in Table 6.2p.36, the CAN connection requires a CAN bus cable with 3 wires. If the available cable has more than 3 coloured wires, use the wires with the colours indicated in 6.2p.36 and cut the remaining ones.
The ROBUR NETBUS cable is available as an accessory.
How to connect the CAN BUS cable to the appliance's electronic board
The CAN BUS cable must be connected to the dedicated terminals on the appliance’s electronic board, as shown below (see Figure
6.9p.37).
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Figure 6.9 – CAN BUS cable connection
A
A
B
C
E
D
Example of a single CAN bus cable connected to the board
Before working on the electrical panel of the appliance, make sure that power supply is o.
1. Cut a length of cable long enough to allow installing it without kinking.
2. On one end of the cable, remove the jacket for a length of approximately 70-80 mm, taking care not to cut the shielding (metal
mesh and/or aluminium sheet and, if present, the bare connector in touch with the shield) and the wires contained within.
3. If the cable is too thin to be held in place in the cable holding bracket (detail C in Figure 6.9p.37), make it thicker by wrap-
ping insulating tape around the jacket close to the stripped part (to an approximate diameter of 12-13 mm).
4. Pull back the shielding on the jacket; apply isolating tape to the end of the shielding as pulled back (detail A, Figure 6.9p.37).
5. If the appliance is a terminal node of the network connect the three coloured wires to the orange connector as shown in
detail "A" of Figure 6.10p. 38. Respect the correct indications L, H, GND provided in Table 6.2p.36, on the gure and on
the electronic board below the connector.
6. If the appliance is an intermediate node repeat the operations from step 2 to step 5 for the other cables required (in this way
you will have two cable lengths each one without the jacket on one end). Twist together the cores with the same color and
connect them to the orange connector, as shown in detail "B" of Figure 6.10p.38.
7. Fix the CAN BUS cable (or two cables, according to the type of node being connected) to the holding bracket in the upper part
of the electrical panel so that the pulled-back shielding is in solid touch with the metal bracket. The cables must be rmly held
in place by the bracket if pulled.
In order to position the jumpers on the electronic board according to the type of node being congured:
▶
If the appliance is a terminal node on the network (i.e. 3 wires are inserted in the orange connector on the board): set the jumpers as shown in detail "A" of Figure 6.10p.38:
▶
If the appliance is an intermediate node on the network (i.e. 6 wires are inserted in the orange connector on the board); set the
jumpers as shown in detail "B" of Figure 6.10p.38:
LEGEND
A protective isolating tape
B shielding of CAN BUS cable (pre-wired to
last unit)
C cable bracket (the CAN BUS cables of an
intermediate node are present)
D CAN BUS/circuit board connector
E wires (6) of the CAN BUS cable (interme
-
diate node)
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6 ELECTRICAL INSTALLATION
38
Figure 6.10 – Electrical wiring diagram
LEGEND
SCH electronic board
GND Common data
L Data signal LOW
H Data signal HIGH
J1 Jumper CAN-BUS in board
A Detail case "terminal node" (3 wires; J1=jumper "closed")
B Detail case "intermediate node" (6 wires; J1=jumper "open")
P8 Port can/connector
Connection cable CAN BUS to electronic board: detail A case "terminal node", detail B case "intermediate node"
8. After nished with all the above operations, close the electrical panel and ret the front panel of the appliance.
How to connect the CAN BUS cable to the Comfort Control Panel
The CAN bus cable is connected to the specic orange connector (P8) supplied with the CCP in a bag.
Before working on the Comfort Control Panel, make sure that it is o.
The CCP, like the controller on the appliance, has jumpers that must be moved so that it can be congured as an intermediate
or terminal node. The position of the jumpers on a new CCP is CLOSED.
To connect the CAN bus cable to a CCP:
You will need: the Comfort Control Panel not powered up.
1. Open the Comfort Control Panel’s electrical panel with the handle on its left.
2. Depending on the type of node being congured, set the CCI’s jumpers J21 as shown in detail "A" or detail "B" in Figure
6.12p.39. If necessary, open the CCI’s back panel (4 screws); after jumpers J21 have been correctly positioned, close the
cover again and retighten the 4 bolts.
3. Cut a length of cable long enough to allow installing it without kinking.
4. Remove the sheath for a length of approximately 70-80 mm, taking care not to cut the shielding (metallic shield and/or aluminium sheet and, if present, the bare connector in contact with the shield) and wires contained inside.
5. Roll the shielding and connect it to a 4-mm eyelet terminal, as illustrated in Figure 6.11p.39, details C and D. Now proceed
as follows:
6. If the CCP is a terminal node of the network connect the three coloured wires to the orange connector "P8", as shown in detail
"A" of Figure 6.12p.39. Observe the terminal markings L, H, GND (on the CCI's board at the base of the socket "P8") which
are given both in Table 6.2p.36 and in the example.
7. If the CCP is an intermediate node repeat the operations from step 2 to step 4 for the other length of CAN bus cable required. Connect the six coloured wires to the orange connector "P8", following the instruction provided in detail "B" of Figure
6.12p.39. Observe the terminal markings L, H, GND (on the CCI's board at the base of the socket "P8") which are given both
in Table 6.2p.36 and in the example.
8. Insert the orange connector "P8" with the wires rst into the opening prepared in the cover of the CCI, and then into the appropriate socket on the CCI itself, making sure it is correctly inserted.
9. Use the rear cover bolts located near the CAN BUS socket to secure the 4 mm eyelet (or 2 eyelets) (detail D, Figure 6.11p.39).
The cable should be secured against pulling out.
The CCI has jumpers J21: the position of the jumpers, depends if the CCI is an intermediate or terminal node, must be as
shown in Figure 6.12p.39.
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39
The CCI is equipped with a backup battery which retains the memory settings in case of power failure. The backup battery
lasts approximately 7 years, after which time it must be replaced by an authorised Technical Assistance Centre.
Figure 6.11 – Connection from CAN BUS to connector P8
Connection detail of cable CAN BUS.
Figure 6.12 – Connection of CCI to CAN-BUS network
LEGEND
CCI Comfort Control Interface
P8 Orange connector
J21 Jumpers CAN-BUS on CCI board
A detail of "terminal node" case (3 wires; J21=jumper "closed")
B Detail of "intermediate node" case (6 wires; J21=jumper "open")
H,L,GND Data signal wires
Jumpers J21 closed
The following wiring diagrams show the connection of the CCI to 1 appliance (Figure 6.13 p. 40) and 3 appliances (Figure
6.14p.41) respectively.
LEGEND
A Insulating tape to protect board/shield
B CAN BUS cable wires
C CAN bus cable shield
D terminal and screw for xing
Page 40
6 ELECTRICAL INSTALLATION
40
Figure 6.13 – Connection of CCI to 1 appliance
LEGEND
SCH S61 controller CCI Comfort Control Interface
Connection of CCI to 1 appliance
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41
Figure 6.14 – Connection of CCI to 3 appliances
LEGEND
SCH S61 controller CCI Comfort Control Interface
Connection of CCI to 3 appliances
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6 ELECTRICAL INSTALLATION
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How to connect the Comfort Control Panel
You will need: the appliance disconnected from the electricity supply
1. The Comfort Control Panel’s power cord must be type tipo FG7 3Gx2.5mm2. the power supply is 230V AC 1N 50Hz.
2. Cut a suitable length of cable.
3. The cable must be connected to the terminal block on the bottom right of the Comfort Control Panel. First make a hole in the
electrical cabinet near to the terminal block and pass the cable through it.
4. Connect the cable to the terminal block as given in Figure 6.7p.35 and t a 10 A thermal cut out upstream of the Comfort
Control Panel.
How to connect the plant water circulation pump
Before making the electrical connections, make sure that work is not carried out on live elements.
To optimise the operation of the appliance install, on the primary circuit, variable rate WILO STRATOS PARA pumps, which are controlled and modulated with the Mod10 controller.
No other models pump are supported.
The instruction for connecting the WILO STRATOS PARA pumps are given below.
Each WILO pump includes its power cord and signal cable 0-10V (both 1.5 m long) for connection to the appliance’s electrical panel.
For longer cable runs, use a shielded 2x0.75 mm2 0-10V signal cable and a FG7 3Gx2.5mm2 power cord.
You will need: the appliance in its permanent location.
1. Check that power supply is o.
2. Remove the front panel of the appliance and the cover of the electrical panel.
3. Connect the brown wire of the WILO STRATOS PARA pump on the terminal - of the connector HPMP on the Mod10 board. Connect the white wire of the WILO STRATOS PARA pump on the terminal + of the connector HPMP on the Mod10 board. Insulated
black and blue wires (see Figure 6.15p.43).
4. Connect the pump to the mains with an upstream external bipolar switch (see detail IP, Figure 6.15p.43) with a delayed
action 2 A fuse, or connect it to the terminal clamps inside the units electrical enclosure (see detail MA, Figure 6.16p.44).
5. After nished with all the above operations, close the electrical panel and ret the front panel of the appliance.
NEVER switch on or o the WILO STRATOS PARA pump through the switch on the power supply.
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43
Figure 6.15 – Wiring diagram for connection of Wilo variable rate pumps
LEGEND
IP Bipolar pump power switch
F Fuse
PM Hot water circulation pump (primary circuit)
Pump signal 0-10V wire colours
brown connect to -ve
white connect to +ve
black isolate
blue isolate
Wiring diagram for connection of Wilo variable rate pumps
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6 ELECTRICAL INSTALLATION
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Figure 6.16 – Wiring diagram for hooking up the Wilo variable rate pump powered by the unit
Wiring diagram for hooking up the Wilo variable rate pump powered by the unit
6.4 TYPE B DDC
This paragraph illustrates the operations to be performed when one or more appliances are connected to a Direct Digital
Controller (DDC). In particular:
1. What is the CAN BUS cable.
2. How to connect the CAN BUS cable to the appliance's electronic board
3. How to connect the CAN BUS cable to the DDC.
4. How to connect the DDC.
5. How to connect the plant water circulation pump.
For specic information regarding the DDC, refer to the specic manuals supplied with it.
The appliance and the DDC communicate with each other via a CAN bus network.
The CAN bus network is characterized by a series of elements (appliances or DDCs) called nodes, connected to each other by a threewire cable. The nodes are of two types: terminal nodes and intermediate nodes.
▶
Terminal nodes are appliances or DDCs that are connected to one other element only.
▶
Intermediate nodes are appliances or DDCs that are connected to two other elements.
The diagram in Figure 6.8p.36 gives an example of a CAN BUS network: 3 appliances are connected to each other and to 1
DDC. Appliance D and the DDC (A) are terminal nodes, while appliances C and B are intermediate nodes as they are connected to 2
elements.
It is possible to place one DDC at any point of the CAN bus network: appliances and DDCs may act equally as terminal or
intermediate nodes. One DDC can control and monitor up to 16 appliances. If there are more than 16 appliances on the
network, it is necessary to connect more than one DDC on the same network, up to a maximum of 3.
What is the CAN BUS cable
The cable to be used must be suitable for CAN BUS applications.
Table 6.2p.36 gives details of some types of CAN bus cable, grouped according to the maximum distance covered by each single
type.
For overall distances to cover of ≤200 m and networks with a maximum of 6 nodes (a typical example: up to 5 units + 1 DDC)
a simple shielded cable 3x0.75 mm may be used.
LEGEND
PM Hot water circulation pump (primary
circuit)
MA Unit terminal block
Pump signal 0-10V wire colours
brown connect to -ve
white connect to +ve
black isolate
blue isolate
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As shown in Table 6.2p.36, the CAN connection requires a CAN BUS cable with 3 cores. If the cable available has more than 3
coloured wires, use the wires with the colours indicated in 6.2p.36 and cut the remaining ones.
The ROBUR NETBUS cable is available as an accessory.
How to connect the CAN BUS cable to the appliance's electronic board
The CAN BUS cable must be connected to the dedicated terminals on the appliance’s electronic board, as shown below (see Figure
6.9p.37).
Before working on the electrical panel of the appliance, make sure that power supply is o.
1. Cut a length of cable long enough to allow installing it without kinking.
2. On one end of the cable, remove the jacket for a length of approximately 70-80 mm, taking care not to cut the shielding (metal
mesh and/or aluminium sheet and, if present, the bare connector in touch with the shield) and the wires contained within.
3. If the cable is too thin to be held in place in the cable holding bracket (detail C in Figure 6.9p.37), make it thicker by wrap-
ping insulating tape around the jacket close to the stripped part (to an approximate diameter of 12-13 mm).
4. Pull back the shielding on the jacket; apply isolating tape to the end of the shielding as pulled back (detail A, Figure 6.9p.37).
5. If the appliance is a terminal node of the network connect the three coloured wires to the orange connector as shown in
detail "A" of Figure 6.10p. 38. Respect the correct indications L, H, GND provided in Table 6.2p.36, on the gure and on
the electronic board below the connector.
6. If the appliance is an intermediate node repeat the operations from step 2 to step 5 for the other cables required (in this way
you will have two cable lengths each one without the jacket on one end). Twist together the cores with the same color and
connect them to the orange connector, as shown in detail "B" of Figure 6.10p.38.
7. Fix the CAN BUS cable (or two cables, according to the type of node being connected) to the holding bracket in the upper part
of the electrical panel so that the pulled-back shielding is in solid touch with the metal bracket. The cables must be rmly held
in place by the bracket if pulled.
In order to position the jumpers on the electronic board according to the type of node being congured:
▶
If the appliance is a terminal node on the network (i.e. 3 wires are inserted in the orange connector on the board): set the jumpers as shown in detail "A" of Figure 6.10p.38:
▶
If the appliance is an intermediate node on the network (i.e. 6 wires are inserted in the orange connector on the board); set the
jumpers as shown in detail "B" of Figure 6.10p.38:
8. After nished with all the above operations, close the electrical panel and ret the front panel of the appliance.
How to connect the CAN BUS cable to the DDC
The CAN bus cable is connected to the specic orange connector (P8) supplied with the DDC in a bag.
Before working on the DDC, make sure that it is o.
The DDC, like the controller on the appliance, has jumpers that must be moved so that it can be congured as an intermediate or terminal node. The position of the jumpers on a new DDC is CLOSED.
To connect the CAN bus cable to a DDC:
You will need: DDC not powered up.
1. Depending on the type of node being congured, set the DDC's jumpers J21 as shown in detail "A" or detail "B" in Figure
6.17p.46. If necessary, open the DDC's back pa nel (4 screws); after jumpers J21 have been correctly positioned, close the
cover again and retighten the 4 screws.
▶
If the DDC is an intermediate node on the network (with no. 6 wires in the orange connector "P8"): set the jumpers "J21" as
shown in detail "B" of Figure 6.17p.46: Jumpers OPEN.
▶
If the DDC is an terminal node on the network (with no. 3 wires in the orange connector "P8"): set the jumpers "J21" as shown in
detail "A" of Figure 6.17p.46: Jumpers CLOSED.
2. Prepare the orange CAN bus connector, from the supplied sleeve.
3. Cut a length of cable long enough to allow installing it without kinking.
4. Remove the sheath for a length of approximately 70-80 mm, taking care not to cut the shielding (metallic shield and/or alu-
minium sheet and, if present, the bare connector in contact with the shield) and wires contained inside.
5. Roll the shielding and connect it to a 4-mm eyelet terminal, as illustrated in Figure 6.11p.39, details C and D. Now proceed
as follows:
6. If the DDC is an terminal node connect the three coloured wires to the orange connector "P8", following the diagram provided
in detail "A" of Figure 6.17p.46. Observe the terminal markings L, H, GND (on the DDC at the base of the socket "P8") which
are given both in Table 6.2p.36 and in the example.
7. If the DDC is an intermediate node repeat the operations from step 2 to step 4 for the other length of CAN bus cable re-
quired. Connect the six coloured wires to the orange connector "P8", following the diagram provided in detail "B" of Figure
6.17p.46. Observe the terminal markings L, H, GND (on the DDC at the base of the socket "P8") which are given both in Table
6.2p.36 and in the example.
8. Insert the orange connector ("P8") with the wires rst into the opening prepared in the cover of the DDC, and then into the
appropriate socket on the DDC itself, making sure it is correctly inserted.
9. Use the rear cover bolts located near the CAN BUS socket to secure the 4 mm eyelet (or 2 eyelets) (detail D, Figure 6.11p.39).
The cable should be secured against pulling out.
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Figure 6.17 – detail wires and jumpers J21 - terminal/intermediate node CCI/DDC
LEGEND
DDC CCI/DDC
J21 Jumper CAN-BUS in CCI/DDC board
A detail case "terminal node" (3 wires; J21=jumper "closed")
B detail case "intermediate node" (6 wires; J21=jumper "open")
H,L,GND data signal wires
Detail terminal and intermediate node: jumpers position J21: "closed" - "open".
How to connect the DDC
The DDC requires a low voltage power supply (24 V) with a 230/24 V AC, 50 Hz safety transformer; the minimum power
requirement is 20 VA. For the connection use a cable with the minimum specications 2 x 0.75 mm2.
Connect the DDC to the transformer via the 4-pole connector provide for this, following the diagram in Figure 6.18p.47. Pass the
cable through the opening in the cover before xing the wires to the connector.
To power up the DDC, proceed as follows.
You will need: the appliance disconnected from the electricity supply
1. Remove the DDC's back panel by undoing the 4 bolts securing it.
2. Cut a suitable length of power cord (minimum 2x0.75 mm2).
3. Pass the power cord (DDC side) through the hole in the DDC's cover and hook up as shown in the example, with the following
polarities: terminal 1 = 24 V; terminal 2 = 0 V; terminal 3 = ground.
Make the grounding connection on the transformer terminal connected to terminal 2 of the 4-pole connector (EP) of the
DDC. Terminal 2 is connected internally to terminal 3, and is thus grounded; if the transformer already has one wire grounded, it must be connected to this terminal. Terminal 3 of the DDC’s 4 pole connector must always be grounded (r ≤ 0.1Ω).
4. On completion, close the DDC's back panel with the 4 bolts.
The DDC is equipped with a backup battery which retains the memory settings in case of power failure. The backup battery
lasts approximately 7 years, after which time it must be replaced by an authorised Technical Assistance Centre.
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Figure 6.18 – CCI/DDC - electric supply
CCI/DDC electric supply from external transformer.
The following wiring diagrams show the connection of the DDC to 1 appliance (Figure 6.19 p. 48) and 2 appliances (Figure
6.20p.49) respectively.
LEGEND
DDC CCI/DDC
AL supply 4 poles connector
1 clamp and wire for 24 Vac supply
2 clamp and wire for 0 Vac supply
3 clamp and wire for ground contact
(required connection)
DDCTR safety transformer
- (230/24 Vac 50/60 Hz)
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6 ELECTRICAL INSTALLATION
48
Figure 6.19 – Connexion câble CAN BUS for plants with one unit
LEGEND
DDC direct digital control
SCH electronic board S61
J1 Jumper CAN-BUS in board S61
J21 Jumper CAN-BUS in board DDC
A terminal nodes connection - (3 wires; J1 e J21 = "closed")
H,L,GND data signal wires (rif. cables table)
Connexion câble CAN BUS between one DDC and one unit
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Figure 6.20 – Connexion cable CAN BUS for plants with more unit
Connexion câble CAN BUS between one DDC and more unit
How to connect the plant water circulation pump
The control of the circulation pump from the electronic board of the appliance depends on the power rating of the pump itself. There
may be 2 dierent cases:
▶
If the power of the pump is lower than 700 W, make the connection as shown in Figure 6.21p.50 and check that the jumper
J10 (located at the bottom left of the electronic board, above the "NO Contact" contacts) is CLOSED, as shown in detail A.
▶
If the power of the pump is equal to or higher than 700 W, make the connection as shown in Figure 6.22p.50 using a relay. In
this case the jumper J10 (located at the bottom left of the electronic board, above the "NO Contact" contacts) must be OPEN, as
shown in detail A.
LEGEND
DDC direct digital control
SCH electronic board S61
J1 Jumper CAN-BUS in board S61
J21 Jumper CAN-BUS in board DDC
A terminal nodes connection - (3 wires; J1 e J21 = "closed")
B intermediate node connection - (6 wires; J1="open")
H,L,Gnd data signal wires (rif. cables table)
Page 50
6 ELECTRICAL INSTALLATION
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Figure 6.21 – Electrical wiring diagram
Example of pump/appliance electrical connection with 230 Vac pump (with absorbed power of < 700 W), controlled directly by the appliance.
Figure 6.22 – Electrical wiring diagram
Example of pump/appliance electrical connection with 230 Vac pump (with absorbed power equal or more than 700 W), controlled directly by the
appliance through a relay
If several appliances are connected on the same hydraulic circuit, it is always necessary to provide a safety transformer (SELV
secondary) with relevant relay; make connections according to the diagram in Figure 6.23p.51.
LEGEND
SCH circuit board
J10 closed jumper
N.O. CONTACT N.O voltage free contacts
MA unit terminal block
L phase
N neutral
Components NOT SUPPLIED
PM water pump <700W
LEGEND
SCH circuit board
J10 open jumper
N.O. CONTACT N.O voltage free contacts
MA unit terminal block
L phase
N neutral
Components NOT SUPPLIED
PM water pump > 700W
KP pump relay
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Figure 6.23 – Electrical wiring diagram
LEGEND
SCH circuit board
J10 open jumper
N.O. CONTACT N.O voltage free contacts
MA unit terminal block
L phase
N neutral
Components NOT SUPPLIED
PM water pump
KP pump relay
PTR SELV safety transformer
IP bipolar pump switch
Example of pump/appliance electrical connection with 230 Vac pump, controlled directly by the appliance through a relay and a SELV safety
transformer
Variable ow pump WILO STRATOS PARA can also be used. In this case, for the electrical wiring of the pump, please refer to
Figure 6.15p.43 and the relevant paragraph.
The primary circulation pump/s must be controlled by the S61 board, or directly (via “N.O. contact” contacts or 0-10V
signal) or indirectly (“OR” use of said contacts by BMS type external systems). Otherwise, the primary circulation
pump/s must be running permanently.
6.5 TYPE C CONSENT SWITCH
Before making the electrical connections, make sure that work is not carried out on live elements.
General indications
▶
Check that the power supply voltage is 230 V 1N - 50 Hz power.
▶
Make the electrical connections as given in the following wiring diagrams.
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6 ELECTRICAL INSTALLATION
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▶
Make the electrical connection in such a way that the ground wire is longer than the live wires. In this way it will be the last wire
to be pulled away if the mains cable should accidentally be pulled, and will thus guarantee the ground connection.
Electrical safety is ensured only when the appliance is correctly connected to an ecient grounding system, realized according to
current safety regulations. Do not use gas pipes as grounding.
How to connect the consent switch
You will need: the appliance is not powered electrically (external master power switch set to OFF)
1. Connect the permissive (on-o switch or ambient thermostat or timer, etc.) to terminals R and W on the appliance’s electronic
board as shown in Figure 6.24p.52 (detail “CS”).
For the appliance to operate correctly, it is ALWAYS necessary to provide a consent switch. Do not use the general mains
external circuit breaker («GS») to switch the appliance on or o.
Figure 6.24 – Electrical wiring diagram
electrical connections of ON/OFF command switch
How to connect the plant water circulation pump
For how to connect the system pumps, see the section with this title in Paragraph 6.4p.44.
Variable ow pump WILO STRATOS PARA can also be used. In this case, for the electrical wiring of the pump, please refer to
Figure 6.15p.43 and the relevant paragraph.
6.6 HOW TO RESET THE FLAME CONTROLLER FROM REMOTE
The ame controller reset can be controlled remotely by installing a button (not supplied) to the ame controller inside the unit’s
electrical panel.
Connect the button as instructed below.
You will need: the appliance disconnected from the electricity supply
1. The cable required to connect the reset button must be 3x0.75mm2.
2. Cut a suitable length of cable.
3. Connect the cable to the blind terminals A (see Figure 6.25p.53).
The blind terminals are hidden on the rightinside the cable tray. To extract them, remove the cover of the tray, slide the cables out of the provided slots, and carefully close the tray again.
The cable may not be longer than 20 metres.
Incorrect wiring of the reset button may damage the component irreparably. Check the cabling carefully before powering
the unit.
LEGEND
SCH Electronic board
R Common
W Terminal consensus warming
Components NOT SUPPLIED
CS ON/OFF command switch
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Figure 6.25 – Button connection for ame controller reset
LEGEND
1 White
2 Grey
3 Orange
4 Green
5 Yellow/Black
6 Black
7 Yellow/Green (Ground)
8 Brown
9 Blue
10 Yellow
11 Violette
12 Pink
PLS Reset button
A Blind terminals
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7 INITIAL ACTIVATION AND MAINTENANCE
54
7 INITIAL ACTIVATION AND MAINTENANCE
In this section you will nd the following information:
▶
Indications required by the authorized Technical Assistance Centre (TAC) in order to carry out the entire procedure of rst startup of the appliance.
▶
Indications regarding maintenance operations of the appliance.
At the end of the section you will nd instructions for changing the type of gas.
Before proceeding with the operations described in this section, the installer is invited to read Paragraph 3.1p.7. Please refer to
Paragraph 4.1p.14 for switching the appliance on and o.
If the appliance is connected to a CCP for the appliance start-up and switch-o control phases, reference must be made to
the two CCP les dedicated to it.
If the appliance is connected to a DDC (and the DDC is in controller mode), for the phases of activation and deactivation of
the appliance it is necessary to refer to the two manuals dedicated to the DDC itself.
7.1 PROCEDURE FOR FIRST START UP
The entire procedure for the initial activation of the appliance must only carried out by an authorised Lochinvar Technical Assistance
Centre (TAC). The product's guarantee may be void if the procedure is not carried out by a Lochinvar TAC.
Before leaving the factory, the appliance has been thoroughly tested.
The entire procedure for initial activation of the appliance consists in carrying out the following (main) operating stages:
1. preliminary verication of plant compliance;
2. check/setup of the combustion parameters;
3. regulating the plant operating parameters.
Preliminary checks of the installation compliance
The authorized technician must:
▶
Check that the whole installation has been realized in accordance with its design, following the manufacturer's instructions and
respecting current legislation. The design must have been drawn up by a professional specier.
▶
Check that all the connections (hydraulic, gas and electrical) of the appliance have been made correctly.
▶
Check that the installation is actually compliant as per the Declaration of Conformity provided by the installer to the owner.
The Declaration of Conformity CERTIFIES that the installation is compliant with current regulations. This Declaration is a mandatory
document and as such it must be provided by the installer to the owner.
▶
Check that the water pressure and ow in the hydraulic circuit and the dynamic gas mains pressure are correct, as indicated by
the manufacturer.
▶
Check that the electrical power supply is 230V 50Hz
▶
Check that the air/fumes pipes are properly connected.
▶
Check that the fumes condensate discharge is properly installed.
▶
Check that the safety clearances have been observed, as shown in Figure 5.2p.22.
If all the conditions listed above are in place, the authorized technician can proceed with the commissioning and start up of the
appliance.
If any non-compliance is found during the preliminary checks, the authorized technician may choose not to proceed with the "rst
start up".
In this case, the authorized technician must:
▶
Report the user/installer of any installation anomaly.
▶
Report the user/installer of any situation that is potentially hazardous for the appliance and for people.
▶
Report of any missing documentation relevant to the installation.
▶
According to the reports made, advise any corrective action to be taken at the installer's care in order to proceed with the "rst
start up".
It is the responsibility of the user/installation technician to carry out any corrective measures on the plant indicated by the
authorized technician. After such corrective measures have been completed, the authorized technician will assess the plant
again. At this point, if safety and compliance conditions are judged satisfactory, the authorized technician must carry out
the "rst start up".
Plant conditions that are hazardous for people or for the appliance. If any of the following hazardous situations arises, the
authorized technician must not carry out the "rst start up":
▶
appliance installed indoors;
▶
appliance installed close to combustible substances or surfaces or in any case in conditions of bad accessibility or not allowing
safe maintenance operations;
▶
control of switching on and o of the appliance not via the CCP/DDC or consent switch but via the master power switch;
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55
▶
damages or failures of the appliance due to transportation or installation;
▶
smell of gas due to probable leaks from the plant itself and in any case all situations that are due to non-compliant plants, considered potentially hazardous.
Plant anomalies. If any of the following situations exists, the authorized technician may carry out the "rst start up" at his
choice, but the appliance must be left o until the anomalies are removed:
▶
installations (not potentially hazardous) not carried out according to sound workmanship practices, installations (not potentially
hazardous) not complying with current national and local regulations;
▶
installations (not potentially hazardous) not carried out according to good workmanship practices, not complying with the instructions provided by the manufacturer;
▶
installations that can cause operational troubles on the appliance.
Procedure for checking/setting-up the combustion parameters
During the initial activation procedure, the combustion parameters must be checked and set ONLY by a Lochinvar TAC. In
this stage, NEITHER the user NOR the installation technician is authorised to perform such operations, and in so doing may
invalidate the guarantee of the appliance.
The appliance is delivered already regulated for the type of gas requested. Anyway, the combustion parameters must ALWAYS be
checked and set during the rst start up.
The type of gas for which the appliance is set up can be identied from the sticker positioned on the gas pipe inside the unit (see
detail M, Figure 7.2p.59).
The nozzles required to change the gas type to G30 and G31 are supplied together with the appliance.
During the rst start-up procedure it is in any case necessary to:
▶
check the dynamic gas mains pressure
▶
check and adjust the appliance’s combustion parameters
You will need: the appliance connected to the gas and electricity supply: switched o and with the gas cock closed; front
panel removed.
Check the dynamic gas mains pressure
1. Connect the manometer to the gas intake (see detail D, Figure 7.1p.56).
2. Open the gas valve and check that the grid static pressure complies to the value reported in Table 5.2p.24 (with a tolerance
of ±15%).
If the static mains pressure is greater than 50 mbar DO NOT switch on the appliance!
3. Give the consent signal for operation.
4. After some seconds of operation, check that the grid dynamic pressure complies with the value reported in Table 5.2p.24
(with a tolerance of ±15%).
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7 INITIAL ACTIVATION AND MAINTENANCE
56
Figure 7.1 – Gas valve
Gas valve Honeywell VK 4115V
If the pressure measured by the pressure gage is not complying with the value reported in Table 5.2p.24 (with a tolerance
of ±15%), it is NOT possible to switch the appliance on!
5. Proceed with the regulation/verication of the combustion parameters as stated in the next paragraph.
Checking and adjusting the combustion parameters
After having checked the dynamic mains pressure (see section), you may check and adjust the combustion parameters as follows.
1. Insert the combustion products analysis probe into the vertical tract of the ue gas pipe (see reference B in Figure 5.4p.27).
2. Give the unit functioning consent and wait for at least 5 minutes for normal combustion conditions.
3. With the appliance running, access menu 2 parameter 24 of the unit's controller: the display will ash "P_H1", press to conrm
forcing maximum thermal power .
4. Check that the value of CO2 read on the ue gas analyser coincides with the value given in Table 7.3p.58 at the "Content of
CO2 with/MAX modulation" line with +0.2 -0.4 tolerance.
Example (G20 gas): the nominal content of CO2 is equal to 9.1%, values in the range between 8.7-9.3% are therefore acceptable.
5. Access menu 2 parameter 23 of the unit's controller inside the electric panel: the display will ash "P_L1", press to conrm forcing minimum thermal power.
6. Now check that the dierence between the value read in point 4 and that now displayed on the ue gas analyser, corresponds
to the data given in the Table 7.3p.58 at the "Delta CO2 between MAX and MIN potentiality" line with tolerance of +0.3-0.0.
Example (G20 gas): if at point 4 a content of CO2 equal to 9.2% was detected, at point 6 there must be a value of (9.2%-0.4) with toler-
ance of +0.3 -0.0 on the delta value, i.e. a value in the range of 8.8-8.5%.
7. If this is not the case, remove cap A from the gas valve (see Figure 7.1p.56) and use a Torx TX40 wrench to act on screw C
in Figure 7.1p.56. Turn clockwise to increase the percentage of CO2 and anti-clockwise to decrease the percentage of CO2.
1/8 turn of the regulator screw reduces (counterclockwise) or increases (clockwise) the CO2 content by approximately 0.1%.
DO NOT turn the screw more than one full turn in either direction.
8. With the appliance running, access menu 2 parameter 24 of the unit's controller: the display will ash "P_H1", press to conrm
forcing maximum thermal power .
9. Check that, also following a regulation intervention on screw C, the value of CO2 corresponds to the value read in Table
7.3p.58 at the "Content of CO2 with/Max modulation" line with tolerance of +0.2 -0.4.
If you cannot calibrate the CO2 percentage after the second attempt, DO NOT activate the appliance; contact the TAC.
10. If the check/setup of the combustion parameters has been successful, please enter menu 2, parameter 25, of the electronic
board inside the electric box of the appliance: on the display, the message "unF1", will blink; press to remove the operational
override previously selected and then return to the normal operational conguration with modulation of the thermal power.
LEGEND
A Plug
B Key Torx TX40
C screw adjustment CO2
D gas pressure intake
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7 INITIAL ACTIVATION AND MAINTENANCE
Installation, user and maintenance manual – LCGHP/LSGHP
57
After 30 minutes, the appliance will automatically remove the thermal power override previously selected. To speed up,
select and execute action "25" of menu 2.
11. Switch the appliance o.
12. Close the gas valve.
13. Reinstall the cap A in Figure 7.1p.56.
14. Reinstall the front panel.
7.2 MAINTENANCE
Correct maintenance prevents problems, guarantees maximum operating eciency of the appliance and allows running costs to be
contained.
The maintenance operations described in this paragraph must be performed exclusively by the serviceman in charge of the
plant or by an authorized CAT Lochinvar.
Any operation that regards internal components of units of the appliance must be carried out by an authorized Lochinvar
Technical Assistance Centre (TAC), according to the instructions supplied by the manufacturer.
The "eciency check" and every other "check and maintenance operation" (see Table 7.1p.57 and 7.2p.57), must be
performed with a frequency in agreement to current law or, if more restrictive, in respect of what requested by the planner (builder of the system) or by the manufacturer of the unit.
The liability of CHECKING THE EFFICIENCY AS A FUNCTION OF THE SYSTEM, OF THE FUEL IN USE AND OF THE THERMAL
POWER, to be carried out with the purpose of containing the energy consumption, is in charge to the responsable of the
system.
Before any maintenance operation, switch o the appliance by means of the permissive contacts (or by means of DDC/CCP)
and wait for the completion of the shut-down cycle. When the appliance is o, switch o power supply and gas supply (according to anti-icing settings), opening the electrical breaker and closing the gas isolation valve.
GUIDELINES FOR THE PREVENTIVE MAINTENACE OPERATIONS
In Table 7.1p.57 are reported the guidelines for the preventive maintenance operations.
If the unit is subject to particularly heavy duty (for example in process plants or in other conditions of continuous opera-
tion), these maintenance operations must be more frequent.
Table 7.1
GUIDELINES FOR THE PREVENTIVE MAINTENACE OPERATIONS
Check of the unit LCGHP/LSGHP
Visually check of the general condition of the unit and of its air heat exchanger.
(1)
√
Check the correct operation of the device used for monitoring the water ow √
Check the % value of CO
2
√
Check that the condensate discharge is clean
[If necessary, frequency of the maintenace operation must be increased]
√
Replace the belts after 6 years or 12,000 hours of operation √
Check for every DDC or CCI DDC or CCI
Check that the plant is able to achive the setpoint temperature √
Download the hystorical events √
1 - It is suggested the cleaning of the air heat exchanger once every 4 years [the optimal frequency of this operation is in any case a consequence of
the installation site].
ORDINARY SCHEDULED MAINTENANCE
Perform the following operations at least once every 2 years.
If the unit is subject to particularly heavy duty (for example in process plants or in other conditions of continuous opera-
tion), these maintenance operations must be more frequent.
Table 7.2
SCHEDULED MAINTENANCE OPERATIONS TO BE PERFORMED AT LEAST ONE EVERY TWO YEARS
Check of the unit LCGHP/LSGHP
Clean the combustion chamber √*
Clean the burner √*
Clean the electrodes of ignition and ame sensing √
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7 INITIAL ACTIVATION AND MAINTENANCE
58
SCHEDULED MAINTENANCE OPERATIONS TO BE PERFORMED AT LEAST ONE EVERY TWO YEARS
Check that the condensate discharge is clean √
*Only in case the analysis of combustion products is non-compliant
In Section 5p.20 are reported suggestions related to the hydraulic plant.
7.3 CHANGE OF GAS TYPE
This operation must be carried out exclusively by an authorised Lochinvar Technical Assistance Centre (TAC).
If the appliance is to be used with a type of gas other than that indicated on the the adhesive label located on the unit's electric panel,
switch o the appliance, shut o its power and gas supplies and proceed as follows (see Figure 7.2p.59):
You will need: the appliance switched o and disconnected from the gas/electricity supplies
1. Disconnect the gas pipe from the gas valve.
2. Undo the 4 bolts E shown in Figure 7.2p.59 and remove the gas valve/blower assembly from the burner.
3. Protect the burner from bolts and nuts falling into it.
4. Using a CH 4 hex key, undo the 4 bolts G indicated in Figure 7.2p.59 and remove the nozzle D from the gas valve.
5. Replace the nozzle and o-ring C (see Figure 7.2p.59) with those of the diameter suited to the new type of gas (see Table
7.3p.58). The nozzle code is stamped on the nozzle itself.
6. Check that the o-ring B is tted.
7. Reassemble the gas valve to the blower with the 4 bolts G taking care that the red silicon hose between the venturi tube and
the gas valve (see detail F of Figure 7.2p.59) is correctly installed.
8. Replace the white gasket between the blower and the burner.
9. Reinstall the blower/gas valve assembly to the burner with the 4 bolts E, taking care not to damage the white gasket.
10. Reconnect the gas pipe to the gas valve.
11. Replace the sticker indicating the type of gas for which the appliance was set up with one that indicates the new type of gas
used.
12. Check the tightness of the installation as follows:
▶
Connect a manometer to the gas intake D (Figure 7.1p.56).
▶
Open the gas valve.
▶
Close the gas cock and check that the mains pressure has not dropped.
13. If there is no gas leak, supply gas and electricity to the appliance and restart it.
14. complete the change of gas type by checking that all gas connections are sealed, including those not directly aected by this
operation (using soapy water or another suitable method).
15. Now check and adjust the combustion parameters as indicated in the respective paragraph.
Table 7.3 – Gas nozzles and content of CO2
Gas type G20 G25 G25.1 G27 G2.350 G30 G31
Nozzle code 180 181 181 187 184 182 183
Nozzle diameter 4,7 5,2 5,2 5,4 5,9 3,4 3,6
Content CO2 with MAX modulation 9,1% 9,2% 10,1% 9,0% 9,0% 10,4% 9,8%
Delta CO2 between Max and Min potential 0,4 0,6 0,8 0,5 0,5 0,5 0,4
Page 59
7 INITIAL ACTIVATION AND MAINTENANCE
Installation, user and maintenance manual – LCGHP/LSGHP
59
Figure 7.2 – Gas changeover
Gas changeover
LEGEND
A Gas valve
B O-ring
C O-ring
D Gas nozzle
E Fixing screws
F Red silicon pipe
G Fixing screws
H Manual reset fumes thermostat
Page 60
8 OPERATING CODES/TROUBLESHOOTING
60
8 OPERATING CODES/TROUBLESHOOTING
8.1 OVERVIEW AND OPERATING CODES/TROUBLESHOOTING
Table 8.1 – TABLE OF OPERATING CODES generated by the S61 electronic board (rmware version 3.026)
CODES DESCRIPTION TRIP CONDITIONS RESET METHOD
E 400
FAULT ON RESET CIRCUIT OF FLAME
CONTROL UNIT
Fault on reset circuit of ame control unit. Contact authorised Technical Assistance.
u 401
GENERATOR LIMIT TEMPERATURE
THERMOSTAT
High temperature detected by limit thermostat
on body of generator
Acknowledge the thermostat manually: reset will be automatic as
soon as fault condition is over.
E 401
GENERATOR LIMIT TEMPERATURE
THERMOSTAT
u_01 code active for 1 hour, or u_01 code generated 3 times in 2 hours of operation.
Contact authorised Technical Assistance.
u 402 FUMES THERMOSTAT
High temperature detected by exhaust fumes
thermostat
Acknowledge the thermostat manually: reset will be automatic as
soon as fault condition is over.
E 402 FUMES THERMOSTAT
u_02 code active for 1 hour, or u_02 code generated 3 times in 2 hours of operation.
Contact authorised Technical Assistance.
E 405 HIGH AMBIENT TEMPERATURE
HIGH temperature detected by ambient temperature sensor.
Reset occurs automatically when the condition that generated the
code ceases.
u 406 LOW AMBIENT TEMPERATURE
LOW temperature detected by ambient temperature sensor.
Reset occurs automatically when the cause ceases or when the unit
is switched o.
u 407 GENERATOR TEMPERATURE HIGH Temperature detected by generator’s probe HIGH.
Reset occurs automatically when the condition that generated the
code ceases.
E 407 GENERATOR TEMPERATURE HIGH
Permanence of u_07 for 1 hour, or intervention of
u_07 for 12 times in 2 hours of operation.
Carry out appropriate checks. Reset may be performed from the
controller (or from the S61 board via menu 2, parameter 21). If the
code persists, contact authorised Technical Assistance.
E 408 FLAME CONTROL UNIT ERROR
E_12 on unit and condenser inlet temperature
increasing by over 10 °C within 1 hour.
Carry out appropriate checks. Reset may be performed from the
controller (or from the S61 board via menu 2, parameter 21). If the
code persists, contact authorised Technical Assistance.
u 410 INSUFFICIENT HOT WATER FLOW
Insucient water ow (the circulator is on and
the owmeter measure a low water ow).
Reset occurs automatically when correct water ow is restored.
E 410 INSUFFICIENT HOT WATER FLOW
u_10 code is repeated, or code u_10 is active for
1 hour.
Reset may be performed from the controller (or from the S61 board
via menu 2, parameter 21). If the code persists, contact authorised
Technical Assistance.
u 411
INSUFFICIENT ROTATION OF OIL
PRESSURE PUMP
Insucient rotation of oil pressure pump. Reset occurs automatically 20 minutes after the Code is generated.
E 411
INSUFFICIENT ROTATION OF OIL
PRESSURE PUMP
u_11 code generated twice in 2 hours of
operation.
Reset may be performed from the controller (or from the S61 board
via menu 2, parameter 21). If the code persists, contact authorised
Technical Assistance.
u 412 FLAME CONTROL UNIT ARREST Failure to ignite burner.
Reset occurs automatically when the solenoid valve opens again
(new ignition attempt), or if the code persists for 5 minutes.
E 412 FLAME CONTROL UNIT ARREST Flame arrest signal.
Reset may be performed from the controller (or from the S61 board
via menu 2, parameter 20). If the code persists, contact authorised
Technical Assistance.
E 416
HOT OUTLET WATER TEMPERATURE
SENSOR DEFECTIVE
Fault (interruption or short circuit) on outlet hot
water temperature sensor.
Reset may be performed from the controller (or from the S61 board
via menu 2, parameter 21). If the code persists, contact authorised
Technical Assistance.
E 417
COLD INLET WATER TEMPERATURE
SENSOR DEFECTIVE
Fault (interruption or short circuit) on inlet water
temperature sensor.
Reset may be performed from the controller (or from the S61 board
via menu 2, parameter 21). If the code persists, contact authorised
Technical Assistance.
E 420
CONDENSER INLET TEMPERATURE
SENSOR DEFECTIVE
Fault (interruption or short circuit) on condenser
inlet temperature sensor.
Reset may be performed from the controller (or from the S61 board
via menu 2, parameter 21). If the code persists, contact authorised
Technical Assistance.
E 422 WATER FLOWMETER FAULT Water owmeter fault
Reset may be performed from the controller (or from the S61 board
via menu 2, parameter 21). If the code persists, contact authorised
Technical Assistance.
E 423 AIR/GAS MIXTURE SENSOR FAULT Air gas mixture sensor fault
Reset may be performed from the controller (or from the S61 board
via menu 2, parameter 21). If the code persists, contact authorised
Technical Assistance.
u 424
FUMES TEMPERATURE SENSOR
FAU LT
Fumes temperature sensor fault
Reset occurs automatically when the condition that generated the
code ceases.
E 424
FUMES TEMPERATURE SENSOR
FAU LT
Presence of E_24 for 5 seconds
Reset may be performed from the controller (or from the S61 board
via menu 2, parameter 21). If the code persists, contact authorised
Technical Assistance.
E 425
CONDENSATE DISCHARGE
CLOGGED
Condensate discharge clogged
Reset may be performed from the controller (or from the S61 board
via menu 2, parameter 21). If the code persists, contact authorised
Technical Assistance.
u 426
GENERATOR FIN TEMPERATURE
SENSOR MALFUNCTION
Generator n temperature sensor malfunction
Reset occurs automatically when the condition that generated the
code ceases.
E 426
GENERATOR FIN TEMPERATURE
SENSOR MALFUNCTION
Presence of u_26 for 5 seconds
Reset may be performed from the controller (or from the S61 board
via menu 2, parameter 21). If the code persists, contact authorised
Technical Assistance.
E 428
GAS SOLENOID VALVE EXCITED
DURING FLAME CONTROLLER
ARREST
The ame controller is arrested (E_12) but the gas
solenoid valve is excited. In this case the ame
controller is de-excited (E_12 resets).
Reset may be performed from the controller (or from the S61 board
via menu 2, parameter 21). If the code persists, contact authorised
Technical Assistance.
u 429
GAS SOLENOID VALVE WITHOUT
ELECTRICAL POWER
Gas solenoid valve is o for 5 seconds (with
central ame control unit on).
Reset occurs automatically if the gas solenoid valve switches on
again within 10 minutes (with central ame control unit on).
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61
CODES DESCRIPTION TRIP CONDITIONS RESET METHOD
E 429
GAS SOLENOID VALVE WITHOUT
ELECTRICAL POWER
Code u_29 is active for more than 10 minutes
(with ame controller unit on).
Carry out appropriate checks. Reset may be performed from the
controller (or from the S61 board via menu 2, parameter 21). If the
code persists, contact authorised Technical Assistance.
u 430
GENERATOR FINS TEMPERATURE
HIGH
Temperature detected by Pt1000 probe high
Reset occurs automatically when the condition that generated the
code ceases
E 430
GENERATOR FINS TEMPERATURE
HIGH
Permanence of u_30 for 2 hours, or intervention
of u_30 for 12 times in 2 hours of operation.
Carry out appropriate checks. Reset may be performed from the
CCI/DDC (or from the S61 board via menu 2, parameter 1). If the
code persists, contact authorised TAC.
u 431
LIMIT THERMOSTAT FOR HEATING
MODULE ACTIVATED
Limit thermostat for heating module activated
Automatic as generating condition ceases. From DDC version 4.015
this error is not included in the Events’ log.
E 436 BLOWER FAULT
u_36 code generated three times in 1 hour of
operation.
Reset may be performed from the controller (or from the S61 board
via menu 2, parameter 21). If the code persists, contact authorised
Technical Assistance.
E 437
LOW COMBURENT AIR
TEMPERATURE
Air comburent temperature equal or smaller of
-10 °C
Reset occurs automatically when the condition that generated the
code ceases.
E 444
EVAPORATOR TEMPERATURE SENSOR FAULT
Evaporator temperature probe fault
Reset may be performed from the controller (or from the S61 board
via menu 2, parameter 21). If the code persists, contact authorised
Technical Assistance.
u 446
HOT INLET WATER TEMPERATURE
TOO HIGH
Hot inlet water temperature higher than upper
operating limit of the appliance (if the appliance
is in operation).
Resets automatically if, with the circulator on, the cause resolves or
(with circulator o) 20 minutes after generation of code.
u 447 LOW HOT WATER TEMPERATURE
Hot water temperature lower than lower operating limit of the appliance (if the appliance is in
operation).
Reset occurs automatically when cause resolves or 430 seconds
after the code is generated.
E 447 LOW HOT WATER TEMPERATURE
u_47 code generated 3 times in 1 hour of operation of the circulator.
Reset occurs automatically when the condition that generated
the code ceases. If the code persists, contact authorised Technical
Assistance.
u 448
HOT WATER DIFFERENTIAL TEMPERATURE TOO HIGH
High hot water dierential temperature.
Reset occurs automatically 20 minutes after the operating code is
generated.
E 448
HOT WATER DIFFERENTIAL TEMPERATURE TOO HIGH
u_48 code generated twice in 2 hours of
operation.
Reset may be performed from the controller (or from the S61 board
via menu 2, parameter 21).
E 449 SATELLITE BOARD NOT PRESENT Satellite board not present.
Reset occurs automatically when the condition that generated the
code ceases.
u 452 DEFROSTING FUNCTION ACTIVATED
Defrosting function activated. Defrosting is
activated if at least 90 minutes has passed since
the last defrosting (or 180 minutes if temperature
is inferior of -5°C), if the ame control unit has
been on for at least 15 minutes, and if room
temperature, temperature of hot inlet water and
of the evaporator require its execution.
The Code clears automatically when execution of defrosting ends.
u 453
WATER FLOW IN HOT PASSIVE
MODULE
Warning is generated if system operating in
conditioning mode and the owmeter of the hot
module is closed.
Reset is automatic and occurs when the condition that generated
it ceases to apply.
u 478
OUTLET HOT WATER TEMPERATURE
TOO HIGH
Outlet hot water temperature too high
Reset is automatic and occurs when the condition that generated
it ceases to apply.
u 479
DEFROST FUNCTION ACTIVATED HOT SIDE
Activation takes place only if the
hot module is o and the antifreeze
function is enabled (see menu 1,
parameter 163).
Antifreeze function activated (with function
enabled: see menu 1, item163; and only with
machine o). In this case the antifreeze function
activates the plant water circulator. If this temperature falls further to below 3 °C, the function
also activates the ame controller.
Resets automatically (defrost function disabled) if, with only the
circulator operating, the hot water inlet/outlet temperature rises
above 5°C (at which point the circulator switches o); or, if also the
ame controller is on, when the temperature reaches 18 °C (in this
case the ame controller and then the circulator switch o).
u 480 INCOMPLETE PARAMETERS Incomplete parameters.
The code remains until operating parameters are entered and
completed. Contact authorised Technical Assistance. If the board is
replaced, Code E 80 may appear; this means that the unit’s characterisation parameters have not been set.
E 80/480 INVALID PARAMETERS
Invalid parameters or damage to parameter
memory.
Reset occurs automatically when correct parameters are entered.
If the code persists, contact authorised Technical Assistance: if the
parameters are incorrect, it is necessary to enter and complete the
unit operating and characterisation parameters; if the memory is
damaged, the controller must be replaced.
u 481 INVALID BANK 1 PARAMETERS Invalid Bank 1 data - Bank 2 data OK. Reset occurs automatically 5 seconds after the code is generated.
E 481 INVALID BANK 1 PARAMETERS
The program attempts to resolve the problem by
writing the second page over the rst; if after 5
attempts this fails, the error is generated.
Reset may be performed from the controller (or from the S61 board
via menu 2, parameter 21). If the code persists, contact authorised
Technical Assistance.
u 482 INVALID BANK 2 PARAMETERS Invalid Bank 2 data - Bank 1 data OK. Reset occurs automatically 5 seconds after the code is generated.
E 482 INVALID BANK 2 PARAMETERS
The program attempts to resolve the problem by
writing the rst page over the second; if after 5
attempts this fails, the error is generated.
Reset may be performed from the controller (or from the S61 board
via menu 2, parameter 21). If the code persists, contact authorised
Technical Assistance.
E 484
FAULTY TRANSFORMER CONNECTION OR 24 V AC FUSES
Damage to one of the 2 24-0-24 V AC transformer
fuses, or one of 24-0-24 V AC wires to the board
not supplying current.
Check fuses and 24-0-24 V AC electrical power connections on the
controller. Reset may be performed from the controller (or from the
S61 board via menu 2, parameter 21). If the code persists or occurs
again, contact authorised Technical Assistance.
E 485
INCORRECT MODULE TYPES (from
menu 6)
The set module type (from menu 6) does not correspond to the one managed by the controller.
Reset occurs automatically when correct parameters are entered. If
the code persists, contact authorised Technical Assistance.
E 486 MEMORY TEST UNSUCCESSFUL Processor error. Contact authorised Technical Assistance.
E 487 MEMORY TEST UNSUCCESSFUL Processor error. Contact authorised Technical Assistance.
E 488 MEMORY TEST UNSUCCESSFUL Processor error. Contact authorised Technical Assistance.
E 489 MEMORY TEST UNSUCCESSFUL Processor error. Contact authorised Technical Assistance.
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8 OPERATING CODES/TROUBLESHOOTING
62
CODES DESCRIPTION TRIP CONDITIONS RESET METHOD
E 490
AMBIENT TEMPERATURE SENSOR
DEFECTIVE
Interruption or short circuit of ambient temperature sensor.
Reset may be performed from the controller (or from the S61 board
via menu 2, parameter 1). If the code persists or occurs again,
contact authorised Technical Assistance.
E 491 CONTROLLER DEFECTIVE
One of the following is absent: serial number of
board, hardware version code or encryption key
written during board test.
Contact authorised Technical Assistance.
Page 63
DECLARATION OF CONFORMITY
Installation, user and maintenance manual – LCGHP/LSGHP
63
DECLARATION OF CONFORMITY
Figure 1
coscienza ecologica caring for the environment
Robur S.p.A. tecnologie avanzate per la climatizzazione advanced heating and cooling technologies www.robur.it robur@robur.it
via Parigi 4/6 24040 Verdellino/Zingonia (BG) Italy T +39 035 888111 F +39 035 884165 capitale sociale € 2.028.000,00 i.v. iscritta al Registro
Imprese di Bergamo n. 154968 codice fiscale/partita iva 00373210160 V.A.T. code IT 00373210160 società soggetta all’attività di direzione e
coordinamento di Fin Robur S.a.p.A. di Benito Guerra & C.
EC – DECLARATION OF CONFORMITY
Manufacturer : Robur S.p.A.
Address : Via Parigi 4/6
City, Country : Verdellino/Zingonia 24040 (Bg), Italy
This is to declare that the ROBUR Gas Absortion Heat Pump (GAHP) are in conformity with the following ECDirectives:
2006/42/EC
Machinery Directive with subsequent amendments and integrations.
2004/108/EC Electromagnetic Compatibility with subsequent amendments and integrations.
Tested and examined according to the following norms: EN55014-1, EN55014-2, EN61000-3-2, EN61000-3-3,
EN62233.
2006/95/EC Low Voltage Directive with subsequent amendments and integrations.
Tested and examined according to the following norms: EN50165, EN60335-2-102, EN60335-1.
2009/142/EC Gas Appliance Directive with subsequent amendments and integrations.
Tested and examined according to the following norms: EN 12309-1. EN 12309-2, EN 483.
As proved whit EC certification number 0964, issued by KIWA Italia S.p.A Via G. Carducci,5 Milan-Italy
97/23/EC Pressure Equipment Directive with subsequent amendments and integrations.
As proved with EC Certification number 1370 of all the components under pressure of the III° category,
issued by BUREAU VERITAS Italia S.p.A. Via Miramare, 15 Milan-Italy
Jvan Benzoni
R&D Director
Robur S.p.A.
Page 64
DECLARATION OF CONFORMITY
64
Figure 2
coscienza ecologica caring for the environment
Robur Spa tecnologie avanzate per la climatizzazione advanced heating and cooling technologies www.robur.it robur@robur.it
via Parigi 4/6 24040 Verdellino/Zingonia (Bg) Italy T +39 035 888111 F +39 035 884165
D-FGL073 rev.J
Dichiarazione di Conformita’ n°:
Declaration of Conformity n°:
Déclaration de conformité n°:
Konformitätserklärung N°:
Deklaracja zgodności n°:
Verklaring van conformiteit n°:
Zingonia, il 10/09/2014
IT
Con la presente si dichiara che i circuiti a pressione:
1. del Refrigeratore d’acqua a gas ad Assorbimento prodotto da ROBUR S.p.A., serie GA: ACF60-00
(standard e versioni speciali);
2. delle Pompe di Calore a gas ad Assorbimento prodotte da ROBUR S.p.A., serie GAHP: GS, WS, A, AR (standard e versioni
speciali); serie GAS HP: G, W, A (standard e versioni speciali); serie BC Absorgas;
rispondono ai requisiti richiesti dalla Direttiva sulle attrezzature a pressione 97/23/CE (PED) come comprovato dal Certificato
CE di Valutazione di Conformità nell'Insieme:
MODULO H, Garanzia Qualità Totale, numero CE-1370-PED-H-ROB001-13-ITA
Rilasciato da:
BUREAU VERITAS ITALIA S.p.A.
Via Miramare,15
20126 Milano – Italy
Si precisa che tali circuiti sono dotati di una valvola di sicurezza (pressione di taratura 32 bar
IV
a
categoria B+D) conforme ai
requisiti della Direttiva sugli Apparecchi a Pressione 97/23/CE (PED) e, per quanto di propria competenza, controllata dall'ente
incaricato della sorveglianza.
Page 65
DECLARATION OF CONFORMITY
Installation, user and maintenance manual – LCGHP/LSGHP
65
Figure 3
coscienza ecologica caring for the environment
Robur Spa tecnologie avanzate per la climatizzazione advanced heating and cooling technologies www.robur.it robur@robur.it
via Parigi 4/6 24040 Verdellino/Zingonia (Bg) Italy T +39 035 888111 F +39 035 884165
D-FGL073 rev.J
UK
We hereby declare that:
1. pressurized circuit of the Gas Absorption Chiller manufactured by ROBUR S.p.A., series GA: ACF60-00
(standard and special versions);
2. pressurized circuit of the Gas Absorption Heat Pump manufactured by ROBUR S.p.A., series GAHP: GS, WS, A, AR (standard
and special versions); series GAS HP: G, W, A (standard and special versions); series BC Absorgas;
comply with Pressure Equipment Directive 97/23/EC (PED) requirements, as proofed with EC Certification of all the components
under pressure:
MODULE H for “Total Quality Assurance”, number CE-1370-PED-H-ROB001-13-ITA
Issued by:
BUREAU VERITAS ITALIA S.p.A.
Via Miramare,15
20126 Milan- Italy
In particular, these circuits are equipped with one safety valve (pressure gauge set at 32 bar
IV
a
category B+D) compliant with
the requirements of the Pressure Equipment Directive 97/23/EC (PED) and checked by the agency in charge of surveillance, as
far as its own competence is concerned.
FR
Nous déclarons par la présente que les circuits hermétiques pressurisés:
1. des unités à Absorption à gaz fabriquées par la Société ROBUR S.p.A., série GA: ACF60-00
(standard et versions spéciales);
2. des Pompes à Chaleur à Absorption à gaz fabriquées par la société ROBUR S.p.A., série GAHP: GS, WS, A, AR (standard et
versions spéciales); série GAS HP: G, W, A (standard et versions spéciales); série BC Absorgas;
répondent à la Directive sur les appareils sous pression 97/23/EC (PED) comme d’après le Certificat CE d’Evaluation de
l’Ensemble sous Pression:
MODULE H, “GARANTIE QUALITE TOTALE”, numéro CE-1370-PED-H-ROB001-13-ITA
Délivré par:
BUREAU VERITAS ITALIA S.p.A.
Via Miramare,15
20126 Milano – Italy
Nous précisons que ces circuits sont équipés d'une soupape de sécurité (pression de réglage 32 bar catégorie IV, module B+D)
conforme aux exigences de la Directive européenne sur les Equipments Sous Pression 97/23/CE et controlée par l’organisme
chargé de la surveillance, en ce qui relève de sa competence.
DE
Hiermit erklären wir, daß die hermetischen Kreisläufe:
1. der gasbefeuerte Absorptionskältemaschine , produziert durch ROBUR S.p.A., Typ GA: ACF60-00
(Standard und in den verschiedenen Ausführungen);
2. der Gasabsorptionswärmepumpe, produziert durch ROBUR S.p.A., Typ GAHP: GS, WS, A, AR (Standard und in den
verschiedenen Ausführungen); Typ GAS HP: G, W, A (Standard und in den verschiedenen Ausführungen); Typ BC Absorgas;
den Anforderungen der Druckbehälterverordnung 97/23/EC (PED) entsprechen und hiermit die EC Zertifizierung erfüllen im
Ganzen:
• MODUL H, umfassende Qualitätssicherung CE-1370-PED-H-ROB001-13-ITA
Ausgestellt von:
BUREAU VERITAS ITALIA S.p.A.
Via Miramare,15
20126 Milano – Italy
Page 66
DECLARATION OF CONFORMITY
66
Figure 4
coscienza ecologica caring for the environment
Robur Spa tecnologie avanzate per la climatizzazione advanced heating and cooling technologies www.robur.it robur@robur.it
via Parigi 4/6 24040 Verdellino/Zingonia (Bg) Italy T +39 035 888111 F +39 035 884165
D-FGL073 rev.J
Hiermit möchten wir klarstellen , daß diese Behälter mit einem Sicherheitsventil (Eichungsdruck 32 bar Kategorie IV, Module
B+D) entsprechend europäischer Druckgeräterichtlinie 97/23/EG ausgerüstet, und sie wurden durch eine dafür zuständige
Überwachungsstelle überprüft.
PL
Firma Robur oświadcza, że wymienione w deklaracji wyroby:
1) Układy ciśnieniowe Gazowych Absorpcyjnych Wytwornic Wody Lodowej produkowanych przez ROBUR S.p.A., z serii GA:
ACF60-00 (w wykonaniu standardowym oraz wersje specjalne);
2) Układy ciśnieniowe Gazowych Absorpcyjnych Pomp Ciepła produkowanych przez ROBUR S.p.A., z serii GAHP: GS, WS, A, AR
(w wykonaniu standardowym oraz wersje specjalne); z serii GAS HP: G, W, A (w wykonaniu standardowym oraz wersje
specjalne); z serii BC Absorgas;
spełniają wymogi Dyrektywy 97/23/EC (PED) dotyczącej urządzeń ciśnieniowych, co potwierdza Certyfikat EC dla urządzeń pod
ciśnieniem z kategorii III:
MODUŁ H dla “Total Quality Assurance”, numer CE-1370-PED-H-ROB001-13-ITA
Wydane przez:
BUREAU VERITAS ITALIA S.p.A.
Via Miramare,15
20126 Milano – Italy
Układy wyposażone są w zawór bezpiczeństwa (wartość ciśnienia ustawiona na 32 bar; IV
a
kategoria B+D) zgodnie z wymogami
Dyrektywy 97/23/EC (PED) dotyczącej urządzeń ciśnieniowych i sprawdzone przez agencję odpowiedzialną za nadzór w zakresie
jej kompetencji.
NL
Hierbij verklaren wij dat de drukcircuiten:
1) van de GasAbsorptie Koelers geproduceerd door ROBUR S.p.A., serie GA: ACF60-00
(standaard e speciale versies);
2) van de Gasabsorptiewarmtepomp geproduceerd door ROBUR S.p.A., serie GAHP: GS, WS, A, AR (standaard en speciale
versies); serie GAS HP: G, W, A (standaard en speciale versies); serie BC Absorgas;
voldoen aan de voorwaarden van de Pressure Equipment Directive 97/23/EC (PED), zoals gecertificeerd door EC Certificaat voor
alle componenten onder druk:
Module H, Totale Qualiteits Garantie, nummer CE-1370-PED-H-ROB001-13-ITA
Gepubliceerd door:
BUREAU VERITAS ITALIA S.p.A.
Via Miramare,15
20126 Milaan-Italie
In het bijzonder is dit circuit uitgerust met een veiligheidsventiel (drukmeter op 32 bar
IV
a
categorie B+D) conform met de eisen
van Pressure Equipment Directive 97/23/EC (PED) en gecontroleerd door de instantie, die belast is met het toezicht.
ROBUR S.p.A.
Ing. Davide Schiavon
Quality and Safety Manager
Page 67
Page 68
Lochinvar Ltd
Hight Eciency Water Heaters and Boilers
7 Lombard Way, The MXL Centre,
Banbury, Oxon OX16 4TJ
T +44 (0) 1295 269981
F +44 (0) 1295 271640
sales@lochinvar.ltd.uk
www.lochinvar.ltd.uk
Revisione: A Codice: D-LBR724 14 MED SDC 007 06/11/2014
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