IMMERGAS KIT 2 ZONE Instruction Manual

IMMERGAS KIT 2 ZONE

Product Specifications

• Model: COD. 3.031695
• Kit Type: 2 Zones – 1 mixed zone and 1 direct zone
• Compatible with: MAGIS PRO 12-14-16 V2, MAGIS COMBO 12-14-16 V2, MAGIS COMBO PLUS 12-14-16 V2, MAGIS HERCULES MINI HYDRO 12, MAGIS HERCULES MINI HYDRO 12 EH, MAGIS HERCULES MINI HYDRO 12T EH
• Dimensions:
  • Height: 700mm
  • Width: 450mm
  • Depth: 190mm

Product Usage Instructions

Installation of the Device

Device Description: The kit is designed for managing heating and cooling systems with large water flows. It is compatible with specific models and configured to handle 1 mixed zone and 1 direct zone.

Installation Methods

1. Recessed Installation: Prepare the wall by creating an opening suitable for the kit. Position the kit in place, ensuring to open the support flaps before insertion.
2. Suspended Installation: Secure the kit to the wall using appropriate expansion plugs and the provided cable guide to prevent water infiltration.

Hydraulic Connection

• Pre-Connection: Clean the heating system thoroughly before making connections to remove any residues that could affect device performance.
• Connection: Follow rational hydraulic connection methods using the specified dimensions for proper installation. Remove all protective caps from the pipes before connecting.

Putting the Device into Service

• System Filling: After connecting the device, slowly fill the system to allow air bubbles to escape through the heating system vents.
• Close radiator bleed valves when only water comes out. Close the filling valve when the heat pump pressure gauge reaches around 1.2 bar.

Frequently Asked Questions

Q: What should I do if I encounter issues during installation?

A: If you face any difficulties during installation, refer to the user manual for troubleshooting steps or contact our customer support for assistance.

Q: Is it necessary to perform regular maintenance on this kit?

A: Yes, regular maintenance is recommended to ensure optimal performance of the heating and cooling system. Refer to the maintenance section of the user manual for guidance on proper upkeep.

Dear Client,

• Our compliments for having chosen a top-quality Immergas product can assure well-being and safety for a long period.
• As an Immergas customer, you can also count on a qualified after-sales service, prepared and updated to guarantee the 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 with 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

• This instruction book is an integral part of the generator or of the heat pump manual to which the mixing kit is connected.
• 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.
• Installation and maintenance must be performed in compliance with the regulations in force, according to the manufacturer’s instructions, and by professionally qualified staff, intending staff with specific technical skills in the plant sector, as envisioned by the Law.
• Incorrect installation can cause injury to persons and animals and damage to objects, for which the manufacturer is not liable. 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

DESCRIPTION OF THE DEVICE

• This kit is proposed for the management of zone heating and cooling systems with large water capacities. In particular, it is a kit that can be combined exclusively with Magis Pro 12-14-16 V2, Magis Combo 12-14-16 V2, Magis Combo Plus 12-14-16 V2, Magis
• Hercules Mini Hydro 12, Magis Hercules Mini Hydro 12 EH and Magis Hercules Mini Hydro 12T EH are designed to manage 1 mixed and 1 direct zone.
• The kit is characterized by the possibility of being recessed into the wall, therefore having no clearance.
• Each zone served by the kit is managed by an appropriate tem-perature control connected to the heat generator.

INSTALLATION RECOMMENDATIONS

• Only professionally qualified heating/plumbing technicians are authorized to install Immergas kits.
• Installation must be carried out according to regulation standards, and 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 the 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. 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 the 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.

MAIN DIMENSIONS

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, 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 mixed zone.
• Check that the expansion vessel in the heat generator allows for the increase in the 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.

ELECTRICAL CONNECTION

• The kit has a protection rating of IPX4D. The 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 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.

COMMISSIONING THE DEVICE

• System filling. When the device has been connected, fill the system.
• The filling is performed at low speed to ensure the 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 pump 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)

SIZING THE SYSTEMS

• Check that the design parameters allow obtaining a maximum surface temperature of the radiant floor in compliance with that established by the Standard.

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 kit is supplied complete with an instructions sheet for assembly and use.

CIRCULATION PUMP

• The device is equipped with two circulator pumps: the circulator for direct zone 1 and the circulator for mixed zone 2.

Zone 1 and 2 circulator pump

• The pump is ideal for the requirements of each central heating system in a domestic and residential environment.
• The pump is equipped with electronic control that allows it to set advanced functions.

Adjustment

• Press the button on the front to adjust the pump (Ref. 1 Fig. 3). By rotation, it is possible to select the following pump control mode:
• Fixed speed I, II, III.
• Proportional head I, II, III.
• Constant head I, II, III.

Fixed speed (Ref. 2 Fig. 3)

• Adjusts the pump speed in fixed mode.
• It is possible to set 3 different speeds:

1. Minimum Speed.
2. Intermediate speed.
3. Maximum speed.

N.B.: Factory set speed = Fixed speed

• Proportional head (ΔP-V) (Ref. 4 Fig. 3)
• 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 originating from the water flow in the pipes, valves, and radiators is eliminated by reducing the head.
• Optimal conditions for thermal comfort and acoustic well-being.

Constant head (ΔP-C) (Ref. 3 Fig. 3)

• 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 the head.

Other functions:

• The vent function of the pump is activated by pressing and holding (3 seconds) the control key (Ref. 1 Fig. 3) and automatically venting the pump.
• This function does not act on the central heating / C.H. system. The pump venting function starts and lasts 10 minutes. The two sets of upper and lower LEDs (Ref. 5 Fig. 3) flash al-ternately every 1 second.
• To interrupt, press the control key (Ref. 1 Fig. 3) for 3 seconds.
• The manual restart is activated by pressing and holding (5 seconds) the control key (Ref. 1 Fig. 3) and releasing the pump when needed (e.g. after prolonged inactivity periods during the summer period).
• The keyboard block is activated by pressing and holding (8 seconds) the control key (Ref. 1 Fig. 3) and blocking the pump settings. The keyboard block protects against unintentional or unauthorized pump changes.
• Activate the keyboard block by pressing the control key (Ref. 1 Fig. 3) for 8 seconds, until the selected setting LEDs flash (Ref. 5 Fig. 3) briefly, and then release.
• The LEDs flash continuously 1 second apart.
• If the keyboard block is active, the pump settings can no longer be modified.
• The deactivation of the keyboard block similarly takes place to the activation.

Manual restart

• When a blockage is detected, the pump tries to automatically restart.

If the pump does not automatically restart:

• Activate the manual restart by pressing the control key (Ref. 1 Fig. 3) for 5 seconds, then release.
• The restart function starts and last max. 10 minutes.
• The LEDs (Ref. 5 Fig. 3) flash one after the other clockwise.
• To interrupt, press the control key (Ref. 1 Fig. 3) for 5 seconds.

Key:

1. Operating mode selector
2. Fixed speed operation
3. Constant head operation
4. Proportional head operation
5. Operating mode indicator LEDs

Troubleshooting

Check the head setting and eventually set a lower head
The building does not heat up.| The heat output of the radiant panels is too low| Increase the delivery value
Set the adjustment mode to ΔP-c instead of ΔP-v

Diagnostics in real-time

• The anomaly LED indicates a fault.
• The pump stops (depending on the fault), and performs cyclical attempts to restart.

contact the Authorised Technical Service Centre
Contact/winding| Faulty winding
It flashes with a red light| Under/Overvoltage| Feed side power supply voltage too low/ high| Check the mains voltage and operating conditions, ask the Authorised Technical Assistance Centre
Excessive module temperature| Inside the too-hot module
Short-circuit| Motor current too high
It flashes with a red/green light| Turbine operation| The hydraulic system of the pumps is fed but the pump has no mains voltage| Check the mains voltage, and the water pressure/flow rate as well as the environmental conditions
Dry operation| Air in the pump
Overload| The motor runs with difficulty. The pump complies with the specifications (e.g. high module temperature). The number of revolutions is lower than normal operation

Total head available to the system of zone 1 direct proportional head

Total head available to the system of zone 1 direct constant head

Total head available to the system of zone 1 direct fixed speed

Total head available to the system of zone 1 mixed proportional head

Total head available to the system of zone 1 mixed constant head

Total head available to the system of zone 1 mixed fixed speed

MAIN COMPONENTS

Key:

1. Connections box
2. Connections board
3. Mixing valve
4. Mixed zone return circuit ‘’Europa’’ one-way valve
5. Direct zone return circuit ‘’Europa’’ one-way valve
6. Drain fitting
7. Flow temperature thermometers
8. Direct zone pump
9. Mixed zone pump
10. Mixed zone flow probe
11. Mixed zone safety thermostat

USE AND MAINTENANCE INSTRUCTIONS

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, and do not leave the device exposed to the elements (rain, sun, etc.);
• 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.

WARNINGS FOR THE USER

• This device does not require any regulation or control by the user; the opening of the device’s 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 boiler 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.

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;
• If even only a single safety check offers a negative result, do not commission the system.

WIRING DIAGRAM

Connection example of hydraulic diagram

Key:

• S20-1 – Room thermostat zone 1
• S20-2 – Room thermostat zone 2

1. Heater supplier
2. Connection box
3. Zone 1: direct zone
4. Zone 2: mixing zone

N.B.: Set A13=2. If necessary, set thermoregulation parameters (valid for Magis Pro 12-14-16 V2, Magis Combo 12-14-16 V2, and Magis Combo Plus 12-14-16 V2).

TECHNICAL DATA

Maximum nominal pressure Maximum operating pressure Water content in the device Total head available in non-mixed zone with 1000 l/h flow rate (max) Total head available in non-mixed zone with 2000 l/h flow rate (max) Total head available in mixed zone (mixing valve open) with 1000 l/h flow rate (max.) Total head available in mixed zone (mixing valve open) with 2000 l/h flow rate (max.) Empty device weight Full device weight| bar °C l

kPa (m H2O) kPa (m H2O) kPa (m H2O) kPa (m H2O) kg kg

| 3

90*

2,2

77,3 (7,9)

50,4 (5,1)

79,8 (8,1)

56,3 (5,7)

20,3

22,5

---|---|---
Maximum input Installed electric power EEI value

Electric plant protection

Maximum distance between kit – hydraulic side generator

| A W

–

–

m

| 1,0

162

<=0,21

IPX4D 15

• temperature can only be reached in combination with a boiler.
• 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 to refer to new products that are correctly installed and used to the Standards in force.
• N.B.: correct periodic maintenance is highly recommended.
• The instruction manual is printed on environmentally friendly paper.
• immergas.com
• To request further specific details, sector Professionals can also use the following e-mail address: consulenza@immergas.com
• Immergas S.p.A.
• 42041 Brescello (RE) – Italy
• Tel. 0522.689011
• Fax 0522.680617

Documents / Resources

| IMMERGAS KIT 2 ZONE [pdf] Instruction Manual
Pro 12-14-16 V2, Combo 12-14-16 V2, Combo Plus 12-14-16 V2, Hercules Mini Hydro 12, Hercules Mini Hydro 12 EH, Hercules Mini Hydro 12T EH, KIT 2 ZONE, KIT 2, ZONE
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References

• Immergas

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