Envirosorb2 7 / 12 / 14
Installation
and Servicing
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INTRODUCTION
1 Instructions guidance ................................................................................................................... 3
1.1 Product documentation .......................................................................................3
1.2 Associated documents .......................................................................................3
1.3 Explanation of symbols .......................................................................................3
1.4 Guarantee registration ........................................................................................3
2 Appliance description ................................................................................................................... 3
2.1 Safety devices ....................................................................................................3
2.2 Data label ...........................................................................................................4
2.3 Regulation and statutory requirements .................................................................4
2.4 Concept of operation ...........................................................................................4
2.5 Hydraulic and refrigerant schematic .....................................................................6
3 Safety instructions and regulations ............................................................................................... 7
3.1 Safety instructions ..............................................................................................7
3.2 Regulations .......................................................................................................8
4 Recycling ..................................................................................................................................... 8
4.1 Appliance ...........................................................................................................8
4.2 Packaging ..........................................................................................................8
4.3 Refrigerant .........................................................................................................8
5 Guarantee / Responsibility ........................................................................................................... 9
5.1 Detailed guarantee .............................................................................................9
5.2 Appliance use / manufacturer responsibility .........................................................9
TECHNICAL DATA
6 Envirosorb ................................................................................................................................. 10
INSTALLATION
7 Appliance location ..................................................................................................................... 12
7.1 Heat pump location ...........................................................................................12
7.2 Clearances .......................................................................................................13
7.3 Command unit location......................................................................................13
8 Installing the command unit ........................................................................................................ 14
9 Installing the heat pump ............................................................................................................ 14
9.1 Scope of delivery ..............................................................................................14
9.2 Recommendations before installation ................................................................15
9.3 Dimensions ......................................................................................................15
9.4 Mounting ........................................................................................................16
9.5 Positioning the appliance ..................................................................................17
10 Examples of installation ............................................................................................................. 18
10.1 Installation with hydraulic module, control by control unit ...................................18
10.2 Installation with hydraulic module, DHW tank, control by control unit ...................20
11 Hydraulic connection .................................................................................................................. 22
12 Discharge of condensate ............................................................................................................ 22
TABLE OF CONTENTS
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13 Electrical connection .................................................................................................................. 22
13.1 Access to main board ........................................................................................23
13.2 Cable passage .................................................................................................23
13.3 Electrical wiring ................................................................................................23
13.4 Wiring diagram .................................................................................................24
14 Commissioning .......................................................................................................................... 28
14.1 Filling the glycol circuit ......................................................................................28
14.2 Activating the heat pump ...................................................................................28
14.3 Activating the options .......................................................................................28
14.4 Heating system test ..........................................................................................28
15 Specifi c adjustment ................................................................................................................... 28
15.1 Adjusting the heating circuit ..............................................................................28
15.2 Settings for the command unit ...........................................................................29
16 User information ........................................................................................................................ 34
MAINTENANCE
17 Trouble-shooting ........................................................................................................................ 35
17.1 Fault diagnosis .................................................................................................35
17.2 Fault codes .......................................................................................................35
18 Servicing ................................................................................................................................... 36
19 Replacement of Parts .................................................................................................................. 36
20 Spare parts ................................................................................................................................ 36
TABLE OF CONTENTS
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INTRODUCTION
1 Instructions guidance
1.1 Product documentation
The instructions are an integral part of the appliance and must be
handed to the user on completion of the installation in order to
comply with the current regulation.
• Carefully read the manual, to understand all the information
to enable safe installation, use and servicing. No liability can
be accepted in the event of damage for not complying with the
guidance in this instruction manual.
These instructions consist of, Installation, Servicing, Fault Finding
and Replacement of Parts. The instructions are an integral part of
the appliance and must be handed to the user on completion of
the installation.
1.2 Associated documents
- 1 Instructions for user
- Instructions for other system components
1.3 Explanation of symbols
a
DANGER: Risk of injuries.
e
DANGER: Risk of electric shock.
b
ATTENTION: Risk of damage to the appliance or to its
surroundings.
i
IMPORTANT: Important information.
1.4 Guarantee registration
Thank you for installing a new Glow-worm appliance in your home.
Glow-worm appliances are manufactured to the very
highest standard so we are pleased to off er our customers a
Comprehensive Guarantee.
This product is guaranteed for 24 months from the date of
installation or 30 months from the date of manufacture,
whichever is the shorter, for parts and labour.
The second year of guarantee, from the beginning of the 13th
month onwards after installation or manufacture, is conditional
upon the heat pump having been serviced by a competent
person approved at the time by the Health and Safety Executive,
in accordance with the manufacturer’s recommendations. We
strongly recommend regular servicing of your appliance, but
where the condition is not met, any chargeable spare parts or
components issued within the applicable guarantee period still
benefi t from a 12 month warranty from the date of issue by the
manufacturer.
We recommend you complete and return as soon as possible your
guarantee registration card (delivered with the hydraulic module).
If your guarantee registration card is missing you can obtain a
copy or record your registration by telephoning the Glow-worm
Customer Service number 01773 828100.
2 Appliance description
2.1 Safety devices
- This appliance is designed for use in heating with an external
temperature of between -20°C and 30°C. Outside this range,
the heat pump stops.
- A set of security devices based on measuring the temperature
within the circuits and the current in the compressor protects
it against excess pressure in the refrigerating fl uid.
- A fl ow detector protects the appliance as a whole.
- To prevent stagnation of the refrigerant fl uid when the
compressor is stopped, a safety device is activated when the
outside temperature lowers. The compressor is then heated by
a low electrical current through the motor windings,
- A temperature sensor on exit from the compressor limits the
functioning of the heat pump when the temperature measured
by this sensor is greater than 100°C. From 117°C, the heat
pump stops.
- A temperature sensor on the fi nned heat exchanger and a
tachometer on the fan checks that the fan is working.
- A water fl ow sensor ensures the security of the water
circulation. If the fl ow is too low (< 420 l/h), the appliance
stops and re-starts when the fl ow comes within the normal
functioning range (>500l/h).
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2.2 Data label
The data label certifi es the country where the appliance is
intended to be installed.
Data label location:
1
Key
1 Data label
2.3 Regulation and statutory requirements
2.3.1 CE Mark
The CE mark indicates that the appliances described in this
manual are in compliance with the following directives:
- European directive n°2004-108 from the European Parliament
and Council relative to electromagnetic compatibility
- European directive n°2006-95 from the European Parliament
and Council relative to low voltage
- European directive No. 97-23 of the European Parliament and
the Council regarding pressure equipment
- European directive No. 2007-1494 of the Commission, dated
December 17, 2007, determining, in accordance with Directive
No. 2006-842 of the European Parliament and the Council,
the label type and the additional requirements as regards
the labelling of products and equipment containing certain
fl uorinated greenhouse eff ect gas.
- European directive No. 2006-842 of the European Parliament
and the Council of May 17, 2006 on certain fl uorinated
greenhouse gasses (OJEU of June 14, 2006)
2.3.2 Local regulations
Benchmark places responsibilities on both manufacturers
and installers. The purpose is to ensure that customers are
provided with the correct equipment for their needs, that it is
installed, commissioned and serviced in accordance with the
manufacturer’s instructions by a competent person approved at
the time by the Health and Safety Executive and that it meets the
requirements of the appropriate Building Regulations.
The Benchmark Checklist can be used to demonstrate compliance
with Building Regulations and should be provided to the
customer for future reference.
Installers are required to carry out installation, commissioning
and servicing work in accordance with the Benchmark Code
of Practice which is available from the Heating and Hotwater
Industry Council who manage and promote the Scheme.
• Visit www.centralheating.co.uk for more information.
2.4 Concept of operation
A heat pump (HP) is a thermodynamic machine which transfers
heat from one location to another. To do so, it employs the
characteristics of a refrigerant fl uid.
The system is composed of the following circuits:
- The refrigeration circuit which transfers heat to the water
circuit following the evaporation, compression, condensation
and expansion of the fl uid.
- The heating circuit.
2.4.1 In heating mode
2
1
3 4
5
6
Key
1 Finned heat exchanger
2 Reverse cycle valve
3 Ventilating fan
4 Compressor
5 Pressure regulator
6 Exchanger with plates
INTRODUCTION
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2.4.2 In defrosting and cooling mode
2
1
3 4
5
6
Key
1 Finned heat exchanger
2 Reverse cycle valve
3 Ventilating fan
4 Compressor
5 Pressure regulator
6 Exchanger with plates
2.4.3 Min. and Max. temperature settings in heating
60
50
70
40
45
30
20
10
0
-20 -10 0 10 20 30
A
B
Key
A Water temperature
B Air temperature
2.4.4 Min. and Max. temperature settings in cooling
12
14
16
18
20
10
8
6
4
2
0
01020304050
46
A
B
Key
A Water temperature
B Air temperature
2.4.5 Principle for controlling the heat pump
Control using the Glow Worm control unit. This confi guration is
recommended in the case of an installation with the Glow Worm
hydraulic unit. The Glow Worm system of active management of
the heat pump using dry 12V contacts. The command unit is used
only as a confi guration tool.
INTRODUCTION
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2.5 Hydraulic and refrigerant schematic
9
10
11
12
14
15
16
17
19
20
22
23
21
18
24
1
3
2
4
5
6
7
A
C
13
8
B
Key
1 Fan (1 fan for the 7 kW model, 2 fans for the 12 and 14 kW models)
2 Outside air temperature sensor
3 Finned heat exchanger
4 Finned heat exchanger temperature sensor
5 4-way cycle inversion gate
6 Temperature sensor for compressor suction
7 Silencer
8 Expansion vessel (in this position for the 7 kW model)
9 Automatic purge vent for the heat pump circuit
10 Water fl ow detector for the heat pump circuit
11 Circulator for the heat pump circuit
12 Safety valve for the heat pump circuit
13 Expansion vessel (in this position for the 12 and 14 kW models)
14 Flow temperature sensor for the heat pump
15 Return temperature sensor for the heat pump
16 Draining valve for the heat pump circuit
17 Plate to plate exchanger
18 Pre-expansion temperature sensor
19 Anti-slugging bottle
20 Rotary compressor
21 Liquid tank
22 Silencer
23 Compressor discharge temperature sensor
24 Electronic expansion unit
A Heat pump return
B Heat pump fl ow
C Evacuation from the safety valve to a container for recovering glycol
water
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3 Safety instructions and regulations
3.1 Safety instructions
e
Incorrect installation can cause electric shock or
appliance damage.
• Never disable security devices and do not try to adjust them.
• Be sure to consider the following handling techniques and
precautions:
• Grip the appliance at its base
• Use safety clothing where appropriate, e.g. gloves, safety
footwear.
• Ensure safe lifting techniques are used:
• Keep back straight.
• Avoid twisting at the waist.
• Avoid upper body/top heavy bending.
• Always grip using the palm of the hand.
• Use designated hand holds.
• Keep load as close to body as possible.
• Always use assistance if required.
• Under no circumstances must the user interfere with or adjust
sealed parts.
• When assembling the connections, correctly position the seals
to avoid any leakage of water.
• This appliance contains metal parts (components) and care
should be taken when handling and cleaning, with particular
regard to edges.
The basic safety instructions must be followed before attempting
to maintain or replace spare parts:
• Stop the appliance.
• Electrically isolate the appliance from the power supply.
• Hydraulically isolate the appliance using the isolation valves if
provided.
• Should you need to replace hydraulic components, drain the
appliance.
• Protect all the electrical components from water while working
on the appliance.
• Use only original spare parts.
• Use only new O-rings and gaskets.
• After having completed work on water carrying components,
check for their tightness.
• When work on the appliance is completed, perform an
operational test and check for safety.
R410A Refrigerant
b
Important: any action carried out on the refrigerant
circuit must be performed by qualifi ed personnel.
- Use only R410A refrigerant.
• The tools used for charging, for measuring pressure, for
creating a vacuum and for the recovery of the fl uid must be
compatible with and employed solely for R410A.
• Welding is to be carried out with nitrogen and the circuit’s airtightness is to be tested under pressure, with nitrogen.
• Refi lling must be eff ected during the liquid phase.
• In case of leakage, do not add fl uid: drain the remaining
fl uid from the circuit and eliminate, in accordance with the
applicable regulations.
b
Evacuating refrigerant into the atmosphere is
prohibited. The refrigerant must be properly
recovered in a container suitable for recycling.
• Create a vacuum in the circuit with a maximum pressure of 30
mbar (static pressure).
• Bleed the circuit before any welding work.
a
Do not smoke or light fl ames during the emptying
and fi lling of the circuit. The gases emitted during the
combustion of the refrigerant are fl ammable.
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3.2 Regulations
3.2.1 Statutory requirements
IMPORTANT
Where no British Standards exists, materials and equipment
should be fi t for their purpose and of suitable quality and
workmanship.
The installation of this appliance must be carried out by a
competent person in accordance the rules in force in the
countries of destination.
Manufacturer’s instructions must not be taken as overriding
statutory requirements.
Standards
On installing and commissioning the appliance you must adhere
to the technical rules, standards and provisions in eff ect at the
time.
Reminder of existing regulatory acts
- EC regulation No. 20372000 from the 29th of June 2000
This European regulation repeals regulation No. 3093/94
and presents the elimination schedules of CFC and HCFC. It
also deals with the collection of refrigerants, system leaks,
particularly systems containing more than 3 kg of CFC or HCFC,
as well as the minimum level of qualifi cation required by the
technicians.
- EC regulation No. 0842/2006 from the 17th of May 2006
regarding the containment, use, collection and disposal of the
fl uorinated greenhouse gases, the labelling and elimination
of the products and equipment containing these gases, the
restriction of use and banning of certain products from the
market, as well as the training and certifi cation of personnel
and companies operating in the activities targeted by this
regulation: refrigeration, air-conditioning, heat pumps and fi re
protection systems containing greenhouse gases.
3.2.2 Other regulations
Control of Substances Hazardous to Health
Under Section 6 of The Health and Safety at Work Act 1974, we
are required to provide information on substances hazardous to
health. The adhesives and sealants used in this appliance are
cured and give no known hazard in this state.
The refrigerant used in this appliance is R410a the use of which is
strictly controlled by F Gas regulation EN842/2006.
4 Recycling
i
The recycling of the packaging must be carried out by
the qualifi ed professional who installed the appliance.
The recycling of any refrigerant fl uid must be carried
out by a suitably qualifi ed refrigerant engineer.
4.1 Appliance
Most of the appliance is made of recyclable materials.
This symbol indicates that this appliance must not
be disposed of with household waste, that it should
be selectively collected for energy recovery, reuse or
recycling.
• Take the appliance to an appropriate collection point for the
treatment, evaluation and recycling. The collection point
must accept appliances containing refrigerant fl uids for their
recovery via recycling either within the elimination centre or by
an authorised service provider.
i
By complying with this directive, you will contribute
to the preservation of natural resources and the
protection of human health.
4.2 Packaging
The competent person who installed the appliance must:
• Sort the waste so as to separate those which can be recycled
(cardboard, plastics...) from those that cannot.
• Dispose of the waste in compliance with regulations in force.
4.3 Refrigerant
a
The appliance contains R410A refrigerant. The
refrigerant should only be handled by an approved
specialist. Avoid all contact with skin and eyes.
R410A fl uorinated greenhouse gases are contained within a fully
sealed system (Kyoto Protocol PES 1975).
Under normal use and conditions, the refrigerant is not
dangerous.
Degassing refrigerant fl uid into the atmosphere is prohibited,
except when necessary to ensure personal safety.
Prior to disposing of the appliance, the refrigerant must be
properly recovered in a container suitable for recycling.
The personnel approved for this recuperation must have an
appropriate certifi cation according to the regulations in force.
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5 Guarantee / Responsibility
5.1 Detailed guarantee
Thank you for installing a new Glow-worm appliance in your
home.
Glow-worm appliances are manufactured to the very
highest standard so we are pleased to off er our customers a
Comprehensive Guarantee.
This product is guaranteed for 24 months from the date of
installation or 30 months from the date of manufacture,
whichever is the shorter, for parts and labour.
The second year of the parts guarantee, from the beginning
of the 13th month onwards after installation or manufacture,
is conditional upon the heat pump having been serviced by
a competent person approved at the time by the Health and
Safety Executive, in accordance with the manufacturer’s
recommendations. We strongly recommend regular servicing
of your appliance, but where the condition is not met, any
chargeable spare parts or components issued within the
applicable guarantee period still benefi t from a 12 month
warranty from the date of issue by the manufacturer.
5.2 Appliance use / manufacturer responsibility
b
The guarantee detailed above is applicable on the
condition that:
- The appliance is installed by a competent person in
accordance with installation instructions.
- The appliance is used for normal domestic purposes and
in accordance with the manufacturer’s operating and
maintenance instructions.
- The appliance is serviced, maintained, by a competent person.
- The repair or replacement of parts during the guarantee period
does not have the eff ect of extending the period.
b
The manufacturer has no responsibility whatsoever for
any damage resulting from:
- Any defects or damage resulting from incorrect or poor
installation, inadequate servicing, or maladjustment.
- Any defects in the system to which the appliance is connected.
- Tout défaut résultant d’une protection antigel non adaptée.
- Any deterioration or maladjustment following changes in
the nature or pressure of the water used, or a change in the
characteristics of the electrical supply voltage.
• For further details, refer to your Terms and Conditions.
a
This appliance is intended to be installed only within
the designated countries displayed on the type plate.
This appliance is not designed to be used by persons (including
children) with physical, sensory or mental restrictions, or a
lack of experience or knowledge. To ensure the safety of these
persons, they must seek help from and be guided by persons who
are competent to explain the usage of this appliance.
• Make sure that children do not play with this appliance.
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TECHNICAL DATA
i
This technical data is valid for a new appliance with its
own heat exchangers.
6 Envirosorb
Description Unit 7 12 14
Min. operating outside temperature (in heating) °C -20 -20 -20
Max. operating outside temperature (in heating) °C 30 30 30
Specifi cations, with radiators
(fl ow : 45°C, return : 40°C, outside dry temperature (wet) 7 (6)°C)
Heating output kW 7.4 12.95 14
Power input kW 2.34 4.3 4.36
Rated electrical current A 10 18.7 19
COP* A7(6) W45-40 3.16 3.01 3.21
Specifi cations, with underfl oor heating
(fl ow : 35°C, return : 30°C, outside dry temperature (wet) : 7 (6)°C)
Heating output kW 7.2 11.9 14.5
Power input kW 1.84 3.04 3.57
Rated electrical current A 8 13.2 15.6
COP* A7(6) W35-30 3.91 3.91 4.06
Refrigerant circuit
Type of refrigerant
Quantity of refrigerant kg 1.81 2.485 3.385
Type of compressor Rotary
Type of oil Polyolester
Type of regulator Electronic
Fan speed rpm 1000 805 1050
Maximum operating pressure (PS)
bar454545
Pa 45 x 10
5
45 x 10
5
45 x 10
5
Heat pump circuit
Max. supply pressure.
bar333
Pa 3 x 10
5
3 x 10
5
3 x 10
5
Min. supply pressure
bar 0.5 0.5 0.5
Pa 50 x 10
3
50 x 10
3
50 x 10
3
Nominal water fl ow rate in heating mode l/h 1200 2100 2500
Flow rate detection threshold l/h 500 500 500
Min. volume of the installation l 28 42 49
Max volume of heat pump circuit, without auxiliary tank, for a water outlet
temperature of 35°C
l659595
Minimum fl ow temperature setting (in heating) °C 20 20 20
Maximum fl ow temperature setting (in heating) °C 60 60 60
Volume of water in the heat pump l 1.2 2.3 2.3
TECHNICAL DATA
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Description Unit 7 12 14
Electrical
Supply voltage/frequency V/Hz 1/N/PE 230V 50Hz
Fuse 15 type B 25 type D 25 type D
Maximum absorbed power (P max) kW 2.7 5.1 5.1
Maximum absorbed current (I max) A 14 23 20
Index of electrical protection IPX4 IPX4 IPX4
Electrical classifi cation 111
Description Unit 7 12 14
Dimensions
Height mm 821 1363 1363
Width mm 908 908 908
Depth mm 326 326 326
Ø Water circuit connections " 1 1 1
Nett total weight kg 71 105 130
Sound power level : overall exterior noise
(according to EN 12102 and EN ISO 9614-1)
dBA 64 67 68
* Coeffi cient Of Performance (according to EN 14511)
** Energy Effi ciency Ratio (according to EN 14511)
i
Fluorinated greenhouse gases as identifi ed in the
Kyoto protocol, are contained within a fully sealed
system.
TECHNICAL DATA
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• Do not place near to stale air extraction fans.
• Allow room for electricity cables (high and low voltage).
• Explain these requirements to the appliance user.
7.1.2 Discharge of condensates
>100mm
• Make allowance for a condensate discharge circuit.
7.1.3 Regulations
• Please ensure that all correct permissions have been obtained
from the local planning offi ce, prior to siting the appliance.
INSTALLATION
i
All the drawings dimensions are shown in mm.
7 Appliance location
7.1 Heat pump location
7.1.1 Instructions
• Before choosing a site for the appliance, carefully read the
safety warnings and installation manual.
• Ensure there is suffi cient space available for the appliance,
taking care that minimum clearances are adhered to ensure
that the connections to the water, gas and fl ue can be
accessed and inspected (see chapter Clearances).
• Observe current regulations.
• Install the appliance outside.
• Do not install the appliance:
- near a heat source,
- near fl ammable materials,
- near the ventilation points of adjacent buildings
- beneath deciduous trees.
• Take into account the following when installing the heat pump:
- prevailing winds,
- the noise generated by the fan and the compressor
- the visual impact on the surrounding neighbourhood.
• Avoid areas exposed to strong winds directed against the
appliance’s air outlet.
• Set the appliance on one of the following supports:
- concrete slabs,
- crane beam,
- concrete blocks.
• Do not install the fan facing the nearby windows. If necessary,
install a noise barrier.
• To avoid transmission of vibrations to the surrounding
buildings:
- use hoses for water connections,
- install anti-vibration pads.
• Ensure that the appliance is protected from water and from
snow.
• Do not expose the heat pump to corrosive or dusty
atmospheres (near to dirt roads, for example).
INSTALLATION
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