IMMERGAS 4-6-9 V2 Hercules Pro Mini User Manual
- June 16, 2024
- IMMERGAS
Table of Contents
COD. 3.032264
COD. 3.032265
Instruction and warning book
Installer User
Maintenance technician
2 ZONES KIT HEATING ONLY
2 direct zones
1 direct zone e 1 mixed zone
User Manual
4-6-9 V2 Hercules Pro Mini
Dear Client,
Our compliments for having chosen a top-quality Immergas product, able to
assure well-being and safety for a long period of time. As an Immergas
customer you can also count on a qualified after-sales service, prepared and
updated to guarantee constant
efficiency of your products.
Read the following pages carefully: you will be able to draw useful
suggestions regarding the correct use of the device, the respect of which,
will confirm your satisfaction for the Immergas product.
For any interventions or routine maintenance contact Immergas Authorised
Centres: these have original spare parts and boast of specific preparation
directly from the manufacturer.
General recommendations
All Immergas products are protected with suitable transport packaging.
The material must be stored in a dry place protected from the weather.
The instruction booklet is an integral and essential part of the product and
must be given to the new user in the case of transfer or succession of
ownership. It must be kept well and consulted carefully, as all of the
warnings supply important indications for safety in the installation, use and
maintenance stages. This instructions manual provides technical information
for installing Immergas products. As for the other issues related to the
installation of products (e.g. safety at the workplace, environmental
protection, accident prevention), it is necessary to comply with the
provisions of the standards in force and the principles of good practice.
In compliance with the legislation in force, the systems must be designed by
qualified professionals, within the dimensional limits established by the Law.
Installation and maintenance must be performed in compliance with the
regulations in force, according to the manufacturer’s instructions and by
professionally qualified staff, meaning staff with specific technical skills
in the plant sector, as provided for by Law.
Improper installation or assembly of the Immergas device and/or components,
accessories, kits and devices can cause unexpected problems for people,
animals and objects. Read the instructions provided with the product carefully
to ensure proper installation.
Maintenance must be carried out by skilled technical staff. The Immergas
Authorised After-sales Service represents a guarantee of qualifications and
professionalism.
The appliance must only be used for that, expressly foreseen. Any other use
must be considered improper and therefore dangerous. If errors occur during
installation, running and maintenance, due to the non-compliance of technical
laws in force, standards or instructions contained in this book (or however
supplied by the manufacturer), the manufacturer is excluded from any
contractual and extra-contractual liability for any damage and the appliance
warranty is invalidated.
The manufacturer declines all liability due to printing or transcription
errors, reserving the right to make any modifications to its technical and
commercial documents without forewarning.
INSTALLING THE DEVICE
1.1 DESCRIPTION OF THE DEVICE.
This kit proposes for the management of zones heating systems with large water
capacities. In particular, it is a kit that can be combined exclusively with
Magis Hercules Pro Mini 6-9, Magis Hercules Pro Mini EH 6-9, Magis Pro 4-6-9
V2, Magis Pro 12-14-16 V2, Magis Combo 4-6-9 V2, Magis Combo 12-14-16 V2,
Magis Combo 4-6-9 Plus V2, Magis Combo 12-14-16 Plus V2, designed to manage 1
mixed and 1 direct zone or 2 direct zones.
The kit is characterised by the possibility to be recessed into the wall,
therefore having no clearance.
Each zone served by the kit is managed by an appropriate temperature control
connected to the heat generator.
1.2 INSTALLATION RECOMMENDATIONS.
The place of installation of the appliance and relative Immergas accessories
must have suitable features (technical and structural), such as to allow for
(always in safe, efficient and comfortable conditions):
– installation (according to the provisions of technical legislation and
technical regulations);
– maintenance operations (including scheduled, periodic, routine and special
maintenance);
– removal (to outdoors in the place for loading and transporting the
appliances and components) as well as the eventual replacement of those with
appliances and/or equivalent components.
Only a professionally enabled company is authorised to install Immergas kits.
Installation must be carried out according to regulation standards, current
legislation and in compliance with local technical regulations and the
required technical procedures.
Before installing the device, ensure that it is delivered in perfect
condition; if in doubt, contact the supplier immediately.
Packing materials (staples, nails, plastic bags, polystyrene foam, etc.)
constitute a hazard and must be kept out of the reach of children.
In the event of malfunctions, faults or incorrect operation, turn the device
off immediately and contact a qualified technician (e.g. the Immergas
Technical Assistance centre, which has specifically trained staff and original
spare parts) Do not attempt to modify or repair the appliance alone. Failure
to comply with the above implies personal responsibility and invalidates the
warranty.
Recess installation.
Prepare the masonry creating an opening in the wall suitable to contain the
kit (see dimensions on the next page).
Insert the kit (1) into its seat, remembering to open the four support fins
(2) before insertion (see Fig. 1).
Protect the side edges and the front cover during recess preparation for the
device.
N.B.: because the hydraulic and electric connections between system and kit
must be inside the clearance of the device itself, first position the kit and
then the system input and output pipes and the electric cable ducts.
Attention: the recessed kit is not a supporting structure and cannot replace
the piece of wall removed. It is therefore necessary to check the correct
positioning inside the wall.
For safety reasons, it is necessary to carefully seal the housing compartment
of the kit in the wall, in compliance with Standards in force.
N.B.: leave the drain holes located under the front door open. Otherwise, if
water should enter, it could not go out.
Wall-hanging installation.
Fasten the kit to the wall using four expansion plugs, suitable for the type
of wall and weight of the device (not supplied) and using the four drilled
holes (see Fig. 2 pos. X).
Use the fairlead and the sheath-holder (3) supplied to limit the infiltration
of water inside the frame.
1.3 MAIN DIMENSIONS.
1.4
HYDRAULIC CONNECTION.
Attention: before making the appliance connections, clean the heating
system thoroughly (pipes, radiators, etc.) with special pickling or de-scaling
products to remove any deposits that could compromise the correct operation of
the device.
Provide a chemical treatment of the thermal system water, in compliance with
the local norms, in order to protect the system and the appliance from
deposits (e.g., lime scale), slurry or other hazardous deposits.
The hydraulic connections must be made in a rational manner using the values
as per Fig. 2.
IMPORTANT: remove all the protection caps from the system flow and return
pipes before making the hydraulic connections. The connections can be made
directly using the female couplings on the distribution manifold or by
inserting system cut-off cocks (optional). These cocks are particularly useful
for maintenance as they allow you to drain the distribution manifold
separately without having to empty the entire system.
N.B.: the manufacturer does not supply the G1” cocks to be installed in
the low-temperature zone.
Check that the expansion vessel in the heat generator allows for the increase
in volume of the water resulting from its central heating without opening the
safety valve. If this is not the case, an expansion vessel with appropriately
dimensioned capacity must be installed on the system.
The kit is set up for the insertion of the automatic “jolly” vent valve to be
mounted on the manifold. This is recommended for better air venting inside the
system.
If two kits are installed in parallel, two manual valves must be provided in
order to allow correct balancing of the hydraulic circuit.
1.5 ELECTRICAL CONNECTION.
The kit has a protection rating of IPX4D. Electrical safety of the device is
reached only when it is correctly connected to an efficient earthing system as
specified by current safety standards.
Attention: the manufacturer declines any responsibility for damage or
physical injury caused by failure to connect the device to an efficient earth
system or failure to comply with the reference IEC standards. Also ensure that
the electrical installation corresponds to maximum power absorbed by the
device, as shown on the data-plate inside the recess.
Important: it is mandatory to prepare two electrical connection lines in
order to separate the power supply in high and low voltage, according to the
standards in force regarding electrical systems. These lines must arrive
inside the kit via relevant sheaths or ducts passing through the fairlead and
the sheath-holder supplied, situated on the upper side of the device.
1.6 INSTALLATION DIAGRAMS.
1.7 COMMISSIONING THE DEVICE.
System filling. When the device has been connected, fill the system.
Filling is performed at low speed to ensure release of air bubbles in the
water via the heating system vents.
Close radiator vent valves when only water escapes from them. Close the
filling cock when the heat generator pressure gauge indicates approx. 1.2 bar.
N.B.: during these operations activate the system vent function of the
hydronic unit (see relative instruction booklet).
(1 direct zone and 1 mixed zone only).
Manually operate the three-way mixing valve using the appropriate lever on the
electric actuator, keeping it open to deaerate the system and, if necessary,
check the correct operating pressure. At the end of these operations, make
sure that the lever on the electric actuator is released from the manual lock
position.
1.8 SIZING THE SYSTEMS.
The flow temperatures to the various zones of the system may decrease with
respect to that of the generator outlet, depending on the mixing of the flow
and return fluids inside the manifold of the kit. If the kit is used to supply
Low Temperature zones, check that the design parameters make it possible to
obtain a maximum surface temperature of the radiant floor that complies with
the standards in force.
1.9 KITS AVAILABLE ON REQUEST.
• System cut-off cock kit (on request). The kit is designed for the
installation of system interception cocks, to be placed on the flow and return
pipes of the connection assembly. This kit is particularly useful for
maintenance as it allows the kit to be drained separately without having to
empty the entire system.
The above-mentioned kits are supplied complete with instructions for assembly
and use. Check the complete list of kits available and which can be combined
with the product, consult the Immergas website, the Immergas Price List or the
technical-commercial documentation (catalogues and data sheets).
1.10 CIRCULATION PUMP.
The pump is ideal for the requirements of each central heating system in a
domestic and residential environment. In fact, the pump is equipped with
electronic control that allows to set advanced functions.
Adjustments.. Turn the selector and set it on the desired curve to adjust the
circulator pump.
| Program | Led |
|---|
P 1 lower (ΔP-V)
P 2 upper (ΔP-V)| green
C 3 lower (ΔP-C) – H=3 m
C 4 upper (ΔP-C) – H=4 m| orange
Min – Max| blue
– Program P (1 lower 2 upper) (ΔP-V) – Proportional curve (green LED).
This allows the pressure level (head) to be proportionally reduced as the
system heat demand decreases (flow rate reduction). Thanks to this function,
the electric power consumption of the circulator pump is reduced further: the
energy (power) used by the pump decreases according to the pressure level and
flow rate. With this setting, the pump guarantees optimal performance in most
heating systems, thereby being particularly suitable in single-pipe and two-
pipe installations. Any noise of the water flow in the pipes, valves and
radiators is eliminated by reducing the head. Optimal conditions for thermal
comfort and acoustic well-being.
– Programs C (3 lower 4 upper) (ΔP-C) – Constant curve (orange LED). The
circulator pump maintains the pressure level (head) constant as the system
heat demand decreases (flow rate reduction). With these settings, the
circulator pump is suitable for all floor systems where all the circuits must
be balanced for the same drop in head.
– MIN-MAX Program (Blue LED). The pump is distinguished by adjustable
operating curves by positioning the selector in any point between the Min and
Max positions, thereby satisfying any installation requirement (from a simple
single-pipe to more modern and sophisticated systems) and always guarantee
optimum performance. The precise working point can be selected in the entire
field of use by gradually adjusting the speed.
Real time diagnostics: lit LED (in various colours) provides information
regarding the pump operating status, see fig. 5.
Possible pump release. The pump block is indicated by a fixed red LED
switching on. Turn the selector up to the MAX position, disconnect and
reconnect the power to restart the automatic release process. The pump will
then activate the procedure that will last a maximum of 15 minutes and the LED
will flash upon each restart. It then turns blue for a few seconds and goes
back to red if the attempt to restart is not successful.
Once the process is complete, set the selector back to the desired curve and
if the problem has not bee resolved, perform the manual release procedure as
described below.
– Disconnect the power to the generator (the LED switches off).
– Close the system flow and return and let the pump cool down.
– Empty the system circuit via the relative cock.
– Remove the motor and clean the impeller.
– Once unblocked, remount the motor.
– Fill the primary circuit; restore generator power and set the desired curve.
Attention: there is a burns hazard due to high fluid temperature and
pressure. Burns hazard from coming in contact.
| Circulating pump LED | Description | Diagnostics | Remedy |
|---|---|---|---|
| LED steady on | Pump noisy | Insufficient system pressure. circulating pump in | |
| cavitation | Restore correct thermal circuit pressure | ||
| Presence of foreign matter in the impeller | Remove the motor and clean the |
impeller
Flashing white LED| Noises during cir- culation of the heat transfer fluid|
Presence of air in the system| Vent the system
LED steady on| Flow rate too high| Reduce rotation speed
LED off| The circulator does not work| Power outage| Ensure the generator is
correctly pow-ered. ensure the circulator is correctly powered
Faulty circulating pump| Replace the circulating pump
Red LED| Rotor seized| Remove the motor and clean the impeller
Insufficient power supply voltage| Check generator power supply voltage
Total head available to the system – Fixed speed program.
Total head available to the system – Constant speed program.
Total head available to the system – Proportional speed program.
1.11
MAIN COMPONENTS.
USE AND MAINTENANCE INSTRUCTIONS
2.1 GENERAL WARNINGS.
If the device must be deactivated temporarily, act directly on the main switch
to power off the system and work safely
• Attention: using any components that use electrical power requires the
observation of some fundamental rules:
– do not touch the device with wet or moist parts of the body; do not touch
when barefoot.
– if the device is wall-mounted: do not pull the electric cables, do not leave
the device exposed to the elements (rain, sun, etc.);
– the power supply cable of the device must not be replaced by the user;
– in the event of damage to the cable, switch off the device and contact
exclusively qualified staff for replacement;
– if the device is not going to be used for a certain period, disconnect the
main power switch.
2.2 WARNINGS FOR THE USER.
This device does not require any regulation or control by the user; the
opening of the device front lid is therefore prohibited.
The only operation that the user must perform is to periodically check the
water pressure of the system in the heat generator. The heat generator
pressure gauge should read a value of between 1 and 1.2 bar.
If the pressure is below 1 bar (with the circuit cool), restore normal
pressure.
N.B.: if pressure values reach around 3 bar the heat generator safety valve
may be activated.
In this case contact a professional technician for assistance.
In the event of frequent pressure drops, contact qualified staff for
assistance to eliminate the possible system leakage.
At the end of its service life, the appliance must not be disposed of like
normal household waste nor abandoned in the environment, but must be removed
by a professionally authorised company.
Contact the manufacturer for disposal instructions.
2.3 CLEANING THE CASE.
Use damp cloths and neutral detergent to clean the kit casing. Never use
abrasive or powder detergents.
CHECKS AND MAINTENANCE
– make sure the heating/cooling system is filled with water and that the
manometer indicates a pressure of 1÷1.2 bar;
– make sure that the air valve cap (if present) is open and that the system is
appropriately de-aerated;
– check the sealing efficiency of water circuits;
– check the correlation between the electric and hydraulic connections;
– (1 direct zone and 1 mixed zone only) with a heat demand in themixed zones,
check the correct opening and closing of the mixingvalve; by manually opening
the latter, check the intervention of the system safety thermostat (the
generator flow temperature
must be set above 60 °C).
If even only a single safety check offers a negative result, do not commission
the system.
3.1 WIRING DIAGRAM.
Connection example of hydraulic diagram (2
direct zones).
Connection example of hydraulic diagram (1
direct zone and 1 mixed zone).
TECHNICAL DATA.
4.1 TECHNICAL DATA TABLE.
| | 2 direct zones| 1 direct zone and 1 mixed zone
---|---|---|---
Maximum nominal pressure| bar| 3| 3
Maximum operating temperature| °C| 90| 90
Low temperature safety thermostat intervention| °C| —| 55
Water content in device| 1| 1.| 2.
Empty device weight| kg| 17.| 20.
Full device weight| kg| 19.| 21.
Electrical connection| V/Hz| 230/50| 230/50
Maximum input| A| 0.62| 0.70
Installed electric power| W| 90| 90
Stand-by power| W| –| –
EEI value| –| 0.21 – Part. 2| 0.21 – Part. 2
Electric plant protection| –| IPX5D| IPX5D
During the useful life of the products, performance is affected by external
factors, e.g. the hardness of the DHW, atmospheric agents, deposits in the
system and so on. The data declared refer to new products that are correctly
installed and used with respect to the Standards in force.
N.B.: correct periodic maintenance is highly recommended.
**** This instruction booklet is madeof ecological paper.
immergas.com
Immergas S.p.A.
42041 Brescello (RE) – Italy
Tel. 0522.689011
Fax 0522.680617
STD.010227/002