Immergas MAGIS M4-30 Use And Installation
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Immergas MAGIS M4-30 Use And Installation

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Summary of Contents for Immergas MAGIS M4-30

  • Page 1 MAGIS Instructions and warnings M4-30 Block heat pumps Use and Installation...
  • Page 3 Read the following pages carefully: you will be able to draw useful tips on the proper use of the device, compliance with which will confirm your satisfaction with the Immergas product.

  • Page 4: Table Of Contents

    INDEX Introduction ..................5 Overview of the unit..............49 General safety warnings............. 7 9.1 Disassembling the unit............. 49 General Introduction..............11 9.2 Main components ..............50 Accessories................. 14 9.3 Electronic control box.............. 52 3.1 Accessories supplied with the units 4-16 kw......14 9.4 Water pipes.

  • Page 5: Introduction

    INTRODUCTION Magis M 8/12/14/16 Magis M 4/6 Internal arrangement: Magis M 12-16 T Electric control system Sistema di controllo elettrico Terminal board Morsettiera Hydraulic system Sistema idraulico Chilling system Sistema di refrigerazione Please remove the protective panel Si prega di rimuovere il pannello after installation.
  • Page 6 Magis M 18/22/26/30 Wiring diagram Electric control system Sistema di controllo elettrico Terminal board Morsettiera Hydraulic system Sistema idraulico Chilling system Sistema di refrigerazione NOTA NOTE The images in this manual are only used as a reference - refer to the actual product. NOTA NOTE - The maximum length of the wiring that guarantees communication between the heat pump and the control panel is...

  • Page 7: General Safety Warnings

    GENERAL SAFETY WARNINGS. The precautions listed below are divided into the following types. They are rather important and therefore must be followed carefully. Meaning of DANGER, WARNING, CAUTION and NOTE symbols. INFORMATION INFORMAZIONI • Improper installation of the appliances or accessories can cause electric shocks, short-circuits, leaks, fire or other damage to the equipment.
  • Page 8 Explanation of the symbols displayed on the unit. This symbol indicates that the appliance in question used a flammable refriger- WARNING ant. There is a risk of fire if the refrigerant leaked or was exposed to an external ignition source. CAUTION This symbol indicates to carefully read the user manual.
  • Page 9 WARNING AVVERTENZA • Tear up plastic packaging bags and throw them away so that children do not play with them. Children can risk dying by suffocation if they play with plastic bags. • Safely dispose of packaging materials such as nails or other metal or wooden parts which could cause injury. •...
  • Page 10 CAUTION • Do not install the unit in the following places: - Where there is mineral oil mist, oil spray or vapours. The plastic components could deteriorate and cause detachment or leakage of water. - Where corrosive gases are produced (such as sulphurous acid gas). Where the corrosion of copper pipes or welded parts can lead to refrigerant leaks.

  • Page 11: General Introduction

    GENERAL INTRODUCTION. • Magis M4-30 block heat pumps are used both for heating and cooling applications and for domestic hot water tanks. They can be coupled with fan coils, floor heating applications, low-temperature high-efficiency radiators, domestic hot water tanks and solar kits.
  • Page 12 Unit operating ranges 4-16 kW. MODALITÀ DI RAFFREDDAMENTO COOLING MODE T4 Outdoor temperature (°C) T4 Temperatura esterna (°C) Temperatura del flusso acqua (°C) Water flow temperature (°C) Operating range by means of heat pumps with possible Range di funzionamento mediante pompa di calore con restriction and protection.
  • Page 13 Unit operating ranges 18-30 kW. COOLING MODE MODALITÀ DI RAFFREDDAMENTO T4 Temperatura esterna (°C) T4 Outdoor temperature (°C) Water flow temperature (°C) Temperatura del flusso acqua (°C) MODALITÀ DI RISCALDAMENTO HEATING MODE T4 Outdoor temperature (°C) T4 Temperatura esterna (°C) Water flow temperature (°C) Temperatura del flusso acqua (°C) DOMESTIC HOT WATER HEATING MODE...

  • Page 14: Accessories

    ACCESSORIES. 3.1 ACCESSORIES SUPPLIED WITH THE UNITS 4-16 KW. Accessories supplied with the units Name Shape Quantity Name Shape Quantity Temperature probe for domestic hot water (T5) or zone 2 (Tw2) Use and maintenance manual or thermostat controlled storage tank (Tbt1) Control Panel manual Drain pipe Technical data manual...

  • Page 15: Accessories Supplied With The Units 18-30 Kw

    3.2 ACCESSORIES SUPPLIED WITH THE UNITS 18-30 KW. Accessories supplied with the units Name Shape Quantity Name Shape Quantity Use and maintenance manual Y-shaped filter Water outlet connection pipe Control Panel manual group Technical data manual Control panel Probe for domestic hot water Water inlet pipe adapter tank (T5)* Extension cable for T5...

  • Page 16: Prior To Installation

    PRIOR TO INSTALLATION. • Prior to installation. Make sure to confirm the model name and serial number of the unit. • Handling. Due to the relatively large size and heavy weight of the unit, it must only be handled with lifting equipment with harnessing. The harnesses can be fitted in the sleeves on the base frame, specifically made for this purpose.

  • Page 17: Important Information On The Refrigerant

    Models 18-30 kW Position of the centre of gravity of the units 18-30 kW. The hook and the Il gancio e il centre of gravity of baricentro dell'unità the unit must be devono essere su una linea in direzione on a vertical line to verticale per evitare avoid an improper ≥1000 mm...

  • Page 18: Installation Site

    INSTALLATION SITE. WARNING • The unit is supplied with flammable refrigerant and must be installed in a properly ventilated place. If the appliance is installed indoors, an additional refrigerant detection device must be added in addition to a further ventilation appliance pursuant to standard EN378.
  • Page 19 If there is strong wind and its direction can be foreseen, refer to the figures below for installation of the unit (any of them will do). Turn the outlet side of the air towards the wall of the building, fence or screen. Unit 4-6 kW ≥...
  • Page 20 If there is strong wind and its direction can be foreseen, refer to the figures below for installation of the unit (any of them will do). Turn the outlet side of the air towards the wall of the building, fence or screen. Make sure there is sufficient space for installation.

  • Page 21: Selection Of A Cold Weather Location

    6.1 SELECTION OF A COLD WEATHER LOCATION. See Chap. “Handling” in section “4 Prior to installation”. NOTE When the unit is used in cold climates, make sure to follow the instructions below. • To avoid exposure to wind, install the unit with the intake side facing the wall. •...

  • Page 22: Installation Precautions

    INSTALLATION PRECAUTIONS. 7.1 DIMENSIONS. Models 8-16 kW Models 4-6 kW 1” 1-1/4” Model 4-6 kW 1295 mm 397 mm 429 mm 760 mm 265 mm 105 mm 225 mm 712 mm 81 mm 8-16 kW 1385 mm 482 mm 526 mm 760 mm 270 mm 60 mm...

  • Page 23: Installation Requirements

    7.2 INSTALLATION REQUIREMENTS. • Check the strength and level of the ground where the unit is installed so that it does not vibrate or make noise during operation. • Secure the appliance firmly with anchor bolts according to the foundation drawing in the figure. (Prepare four series of Φ...

  • Page 24: Clearance Requirements For Maintenance

    7.4 CLEARANCE REQUIREMENTS FOR MAINTENANCE. 7.4.1 Models 4-16 kW. • In case of stacked installation. 1) If there are obstacles obstructing the outlet side. ≥500mm ≥200mm Unit 4-6 kW ≥ 1000 mm 8-16 kW ≥ 1500 mm 2) If there are obstacles obstructing the air inlet. ≥500mm ≥200mm ≥300mm...
  • Page 25 Unit 4-6 kW ≥ 2500 mm ≥ 1000 mm ≥ 300 mm ≥ 600 mm 8-16 kW ≥ 3000 mm ≥ 1500 mm 7.4.2 Models 18-30 kW. 1) Installation of a single unit. (Parete od ostacolo) (Wall or obstacle) Ingresso aria Air inlet >300 Keep the wiring...

  • Page 26: Control Panel Installation Manual

    7.5 CONTROL PANEL INSTALLATION MANUAL. 7.5.1 Safety precautions. • Read the safety precautions carefully before installing the unit. • It is recommended to strictly abide by the important safety tips given below. • Make sure that nothing anomalous occurs during execution of the test and completion of installation, then deliver the manual to the user.
  • Page 27 • Notes for installation of the control panel. 1) This installation manual contains information on how to install the control panel. 2) The control panel is a low-voltage circuit. Never connect it to a normal 220V/380V circuit, or insert it in the same conduit as the circuit wiring.
  • Page 28 • Installation of rear cover. Screw hole for three Foro vite presente per M4X20 tre M4X20 Closing position Posizione di chiusura Rear cover Coperchio posteriore Foro vite presente su Screw hole on junction box scatola di derivazione 86, 86, use two M4X25mm utilizzare due M4X25mm Coperchio Front cover...
  • Page 29 Stucco Stucco Stucco Stucco Stucco Stucco Folded Cavo Cable Ripiegato Cavo Folded Cable Cavo Folded Cable Ripiegato Ripiegato To prevent water from penetrating into the control panel, use anchoring and stucco to seal the passage holes when install- ing the wires. 7.5.4 Installation of front cover.

  • Page 30: Typical Application Examples

    TYPICAL APPLICATION EXAMPLES. The following application examples are for illustrative purposes only for units 4-16 kW. 8.1 UNITS 4-16 KW: APPLICATION 1. Indoor Interno Outdoor Esterno FHL1 FHL2 FHLn 11.2 Modbus Modbus 11.1 11.3 Code Assembly unit Code Assembly unit Main unit Domestic hot water tank Control panel...
  • Page 31 • TBH (tank booster heater) control. The TBH function is set on the control panel (Chap. 10.1 Overview of DIP switch settings) 1) When the TBH is set so as to be valid, TBH can be activated by means of the FAST DHW function on the control panel; in DHW mode, TBH will be activated automatically when the initial temperature T5 of the domestic hot water is too low or when the target temperature of the domestic hot water is too high at low room temperature.
  • Page 32 8.1.1 With Indoor unit backup heater. Indoor Outdoor Modbus Code Assembly unit Code Assembly unit Main unit 11.2 Coil, heat exchanger for heat pump Control panel Filter (accessory) Sv1: 3-way valve Control valve Balance tank Cut-off valve Automatic air purge valve Filling valve Discharge valve Discharge valve...

  • Page 33: Units 4-16 Kw: Application 2

    8.2 UNITS 4-16 KW: APPLICATION 2. The ROOM THERMOSTAT control for space heating or cooling can be set on the control panel. It can be set in three modes: MODE SET/ONE ZONE/DOUBLE ZONE. The unit can be connected to a high-voltage room thermostat and to a low-voltage room thermostat.
  • Page 34 8.2.2 Mode setting control. Indoor Interno Outdoor Esterno FCU1 FCU2 FCUn FHL1 FHL2 FHLn Code Assembly unit Code Assembly unit Main unit Cut-off valve User interface Discharge valve Balance tank Manifold/distributor Automatic air purge valve Bypass valve Discharge valve SV2: 3-way valve P_o: External circulation pump Room thermostat Expansion vessel...
  • Page 35 8.2.3 Double zone control. Indoor Interno Esterno Outdoor RAD.1 ZONE 1 ZONA1 S20-2 RAD.2 S20-1 RAD.n ZONE 2 ZONA2 23.1 23.2 Modbus FHL1 FHL2 FHLn Code Assembly unit Code Assembly unit Main unit Discharge valve Control panel Manifold/distributor Balance tank Mixing kit Automatic air purge valve 23.1...
  • Page 36 The floor heating circuits require a lower water temperature in heating mode than the radiators or fan coil unit. A mixing kit is used to reach these two set points to adapt the water temperature based on the requirements of the floor heating circuits.

  • Page 37: Units 4-16 Kw: Cascade System

    8.3 UNITS 4-16 KW: CASCADE SYSTEM. Code Assembly unit Code Assembly unit Code Assembly unit Tsolar: Solar temperature sensor Master Unit Hot water cock (optional) 1.2... n Slave Unit Solar panel Manifold/distributor Control panel P_d: Pump for DHW pipes Bypass valve T5: DHW temperature sensor Sv1: 3-way valve Mixing kit...
  • Page 38 • Space heating. All the slave units can work in space heating mode. The operation mode and temperature setpoint are set on the control panel (2). Due to the variations of the outdoor temperature and of the load required indoors, several outdoor units can operate at different times.

  • Page 39: Units 18-30 Kw: Application 1

    The following application examples are for illustrative purposes only for units 18-30 kW. 8.4 UNITS 18-30 KW: APPLICATION 1. Space heating with a room thermostat connected to the unit. S20-1 ---- FHL1 FHL2 ---- FHLn Code Assembly unit Code Assembly unit Heat pump S20-1 Room thermostat...

  • Page 40: Units 18-30 Kw: Application 2

    8.5 UNITS 18-30 KW: APPLICATION 2. Space heating without a room thermostat connected to the unit. The domestic hot water tank is connected to the unit and the tank has the solar heating system. 12.1 12.1 12.3 12.2 ---- ---- FHL1 FHL2 FHLn...
  • Page 41 • Operation of the circulation pump. The circulation pump (1.7) and (10) runs as long as the unit is on for space heating. The circulation pump (1.7) runs as long as the appliance is on for domestic hot water (DHW) heating. •...

  • Page 42: Units 18-30 Kw: Application 3

    8.6 UNITS 18-30 KW: APPLICATION 3. Application for space heating and cooling with a room thermostat suitable for switching heating/cooling when connected to the unit. Heating is supplied by the floor heating circuits and the fan coils. Cooling is only carried out by the fan coils. Domestic hot water is supplied by the domestic hot water storage tank connected to the unit.
  • Page 43 • Pump operation and space heating and cooling. The unit will switch to heating or cooling mode depending on the setting made on the room thermostat. When the room thermostat (S20) demands space heating/cooling, the pump is activated and the unit (1) switches to heating/cooling mode. The unit (1) will run to reach the required cold/hot water outlet temperature.

  • Page 44: Units 18-30 Kw: Application 4

    8.7 UNITS 18-30 KW: APPLICATION 4. Application with double setpoint function with two room thermostats, connected to the unit. • Space heating with application of two room thermostats by means of floor heating and fan coils. The floor heating circuits and the fan coils require different operating water temperatures.
  • Page 45 NOTE Wiring of the room thermostat S20-1 (for fan coils) and S20-2 (for floor supply circuits) must follow “method C” as described in Chap. 9.7.6 Connection for other components/For the room thermostat, and the thermostat that is con- nected to input “C” must be positioned in the zone where the floor heating circuits are installed (zone B), the other connected to input “H”...

  • Page 46: Units 18-30 Kw: Application 5

    8.8 UNITS 18-30 KW: APPLICATION 5. Application with double setpoint function without room thermostat, connected to the outdoor unit. • Heating is supplied by the floor heating circuits and the fan coils. The floor heating circuits and the fan coils require dif- ferent operating water temperatures.
  • Page 47 NOTE • The volume of the balance tank (8) must be greater than 40 L. The drain valve (6) must be installed in the lowest posi- tion of the water system. • Since the temperature sensor connected in the control panel is used to detect the room temperature, the control panel (4) must be located in the room where the floor heating circuits and the fan coils are installed and far from the heat- ing source.

  • Page 48: Units 18-30 Kw: Cascade System Application

    8.9 UNITS 18-30 KW: CASCADE SYSTEM APPLICATION. The units are installed in parallel and can be used for cooling, heating and hot water. • 6 units can be connected in parallel. For the connection diagram of the electric control system of the system in parallel, refer to Chap.

  • Page 49: Overview Of The Unit

    NOTE • The volume of the balance tank (8) should be greater than 40 L. The drain valve (6) should be installed in the lowest position of the system. • The junctions of the water inlet and outlet pipes of each unit of the parallel system should be connected with soft fit- tings, and the one-way valves must be installed on the water outlet pipe.

  • Page 50: Main Components

    Push the grille to the left until it stops, then pull the right border to remove it. You may also invert the procedure. Pay at- tention not to injure your hands. 9.2 MAIN COMPONENTS Hydraulic module 4-6 kW and 8-16 kW. 4-6 kW 8-16 kW Code...
  • Page 51 Hydraulic module 18-30 kW. Diagram of hydraulic system 18-30 kW. 12.2 inlet Tw_ingresso 12.1 outlet Tw_uscita Code Assembly unit Explanation The air left in the water circuit will be removed automatically Automatic air purge valve from the water circuit. Balances the pressure of the water system. Expansion vessel (Volume of expansion vessel 8 L) Circulation pump...

  • Page 52: Electronic Control Box

    9.3 ELECTRONIC CONTROL BOX. Models 4-6 kW. Control Scheda di board of controllo del Inverter module modulo Inverter (PCB A) (PCB A) Main control board of system with heat pump Main control board of hydraulic Scheda di controllo principale del sistema con Scheda di controllo principale del (PCB B) pompa di calore (PCB B)
  • Page 53 Single phase models 12-14-16 kW. Main control board of hydraulic module Scheda di controllo principale del modulo idraulico Control Scheda di controllo del modulo board of Inverter Inverter (PCB A) module (PCB A) Main control board of system with heat Scheda di controllo principale del pump (PCB B) sistema con pompa di calore (PCB B)
  • Page 54 Models 18-30 kW. Rear view Front view Vista posteriore Vista anteriore Scheda di controllo Main control board principale dell’unità Filter of unit (PCB B) Inverter module Scheda Modulo Inverter (PCB B) board filtro (PCB A) (PCB A) (PCB C) (PCB C) Main control Scheda di controllo principale del...
  • Page 55 Order Port Code Assembly unit CN21 POWER Power supply port Not used DIS1 Digital display EARTH Earth port CN28 PUMP Variable speed pump power input port CN25 DEBUG IC programming port S1,S2,S4,SW9 DIP Switch USB programming port Flow switch port Port for refrigerant liquid side temperature sensors, internal unit temperature (heating mode) Port for refrigerant gas side temperature sensors, internal unit temperature (cooling...
  • Page 56 Order Port Code Assembly unit IBH1/2_FB Feedback port for thermostat (in default short-circuit) IBH1 Port for backup heater CN22 IBH2 Reserved Control port for tank booster heater CN41 HEAT8 Port for anti-freeze electric heating tape (internal) CN40 HEAT7 Port for anti-freeze electric heating tape (internal) CN42 HEAT6 Port for anti-freeze electric heating tape (internal)
  • Page 57 2) PCB A, 12-16kW, Modulo Inverter 2) PCB A, 12-16kW, Inverter module CN19 CN20 CN32 CN502 CN23 CN501 Code Assembly unit Code Assembly unit U compressor connection port Port for communication with PCB B (CN32) V compressor connection port Port for high pressure switch (CN23) W compressor connection port Reserved (CN6) Fan port (CN19)
  • Page 58 3) PCB B, Scheda di controllo principale del sistema a pompa di calore 3) PCB B, main control board of heat pump system CN10 CN27 CN11 CN22 CN24 CN17 CN26 CN28 CN13 CN55 CN18 CN14 CN29 CN7 CN5 CN6 CN16 CN19 CN21 CN33 CN2 CN30...
  • Page 59 9.3.3 Three phase for units 12-14-16 kW. 1) PCB A, modulo inverter 1) PCB A, inverter module CN16 CN22 CN15 CN23 CN17 CN18 CN20 CN19 Code Assembly unit Code Assembly unit Output port for +15V (CN20) L1 power supply input port (CN16) W compressor connection port (CN19) P_in input port for IPM module (CN1) V compressor connection port (CN18)
  • Page 60 2) PCB B, main control board of heat pump system 2) PCB B, Scheda di controllo principale del sistema a pompa di calore CN41 CN26 CN24 CN36 CN21 CN18 CN31 CN29 CN10 CN35 CN11 CN28 CN20 CN37 CN27 V i n CN22 CN30 CN38...
  • Page 61 3) PCB C, Three-phase filter board 12/14/16 kW 3) PCB C, scheda filtro Trifase 12/14/16 kW CN204 CN205 CN206 CN30 CN213 CN214 CN202 CN211 CN203 CN200 CN201 CN212 Code Assembly unit Code Assembly unit L2 power supply (CN201) Port for communication with PCB B (CN8) L3 power supply (CN200) L3 filtering power (L3) N power supply (CN203)
  • Page 62 Inverter module 18-30 kW CN16 CN22 CN15 CN23 CN12 CN13 CN20 CN14 Code Assembly unit Output port for +15V (CN20) Port for communication with PCB B (CN8) W compressor connection port V compressor connection port U compressor connection port Input port P_out for IPM module Input port P_in for IPM module Input port for high pressure switch (CN23) Port for power supply change (CN2)
  • Page 63 Main control board units 18-30 kW CN41 CN26 CN24 CN36 CN21 CN18 CN31 CN29 CN10 CN35 CN11 CN28 CN37 CN20 CN22 CN27 20 V V i n CN30 CN38 CN109 CN107 CN53 Code Assembly unit Code Assembly unit Power supply port for PCB B (CN41) Power supply port for hydro-box control board (CN21) IC programming port (CN11) Port for another temperature sensor (CN35)
  • Page 64 18-30 kW units filter board CN204 CN205 CN206 CN30 CN214 CN202 CN203 CN200 CN201 CN212 Code Assembly unit Code Assembly unit L3 power supply (L3) Power supply port for main control board (CN30) L2 power supply (L2) L1 filtering power (L1) L1 power supply (L1) L2 filtering power (L2) N power supply (N)
  • Page 65 Wiring diagram for units 4-8 kW CHECK FORCE_COOL...
  • Page 66 Wiring diagram for units 12-16 kW H-PRO CHECK FORCE_COOL...
  • Page 67 Wiring diagram for units 12-16 kW T...
  • Page 68 Wiring diagram for units 18-30 kW...

  • Page 69: Water Pipes

    9.4 WATER PIPES. All the lengths and distances from the pipes have been taken into consideration. Requirements The maximum admissible length of the cable of the temperature probe is 20 m. This is the maximum admissible dis- tance between the domestic hot water storage tank and the unit (only for installations with domestic hot water storage tank).
  • Page 70 • Make sure that the components installed in the on-field pipes can withstand the water temperature and pressure. • The drain cocks must all be installed in the low points of the system to completely drain the circuit during maintenance. •...
  • Page 71 Models 18-30kW. The units are fitted with an 8L expansion vessel with a default pre-pressure of 1.0 bar. The pre-pressure of the expansion vessel might need to be adjusted to guarantee proper operation of the unit. 1) Check that the total water volume of the system always available and not shut off, excluding the internal water volume of the unit, is at least 40L.
  • Page 72 Volume massimo dell’acqua [L] Maximum water volume [L] Pre-pressure = expansion vessel pre-pressure Pre-pressione = pre-pressione del vaso di espansione Maximum water volume = maximum water volume in the system Volume massimo dell’acqua = volume massimo dell’acqua nel sistema A1 System without glycol A1 Sistema senza glicole A2 Sistema con il 25% di glicole propilenico A2 System with 25% propylene glycol...
  • Page 73 9.4.3 Water circuit connection. The water connections must be performed properly according to the labels applied on the heat pump, indicating water inlet and outlet. CAUTION Be careful not to deform the unit’s pipes by exerting excessive force when connecting the pipes. Pipe deformations can cause the unit to malfunction.

  • Page 74: Filling With Water

    Models 18-30kW. “Anti-clockwise rotation, remove the flow switch. Dry the flow switch com- pletely. ” Keep dry Mantenere asciutto CAUTION When the unit remains idle for a long time, make sure it remains on. If you want to cut power, the water should be completely drained from the system to prevent the unit and pipes from being damaged by freezing.

  • Page 75: Water Pipe Insulation

    NOTE It might not be possible to remove all the air in the system while filling. The remaining air will be removed by means of the automatic air purge valves during the initial hours of operation of the system. It could be necessary to top up water afterwards.
  • Page 76 9.7.2 Wiring overview. Models 4-16kW. The illustration below provides an overview of the field wiring required between the different parts of the system. AHS1 AHS2 1AUS 2AUS DFT2 DFT1 IBH1 3AUS CN11 CN30 Innen Indoor Esterno Outdoor Code Assembly unit Code Assembly unit Heat pump...
  • Page 77 Number of conductors Maximum operating Element Description AC/DC required current Signal cable of the solar energy kit 200 mA Control panel cable 200 mA Room thermostat cable 200 mA (a) Solar pump control cable 200 mA (a) External circulation pump control cable 200 mA (a) Domestic hot water pump control cable 200 mA (a)
  • Page 78 Guidelines for field wiring. CAUTION Switch off power before removing the service panel of the electric switchgear. • Secure all the cables with clamps. • Systems equipped with a domestic hot water tank require a dedicated power supply circuit for the storage tank heater. Refer to the Use and installation manual of the domestic hot water storage tank.
  • Page 79 Number of conductors Maximum operating Element Description AC/DC required current Signal cable of the solar energy kit 200 mA Control panel cable 200 mA Room thermostat cable 2 or 3 200 mA (a) Probe cable for Tw2 Domestic hot water pump control cable 200 mA (a) 10/11/23 3-way valve control cable...
  • Page 80 9.7.3 Precautions for electric power wiring. When connecting the power terminal, use the ring cable lug with insulation enclosure (See Figure 9.1). Use a power cable compliant with specifications and firmly connect the power cable. Make sure the cable is firmly secured so that it is not yanked off by an outside force.
  • Page 81 9.7.5 Remove the cover of the main compartment. Unit 4 kW 6 kW 8 kW 12 kW 14 kW 16 kW 12 kW T 14 kW T 16 kW T Maximum overcurrent protec- tion (MOP) Cable dimension (mm Unit 18 kW 22 kW 26 kW 30 kW...
  • Page 82 Connection of power cable of the cascade system. Master Unit Unità Master Slave unit Unità slave Please use the screened wire, and the screening layer must be earthed. Si prega di utilizzare il filo schermato, e lo strato di schermatura deve essere messo a terra. H1 H2 H1 H2 H1 H2...
  • Page 83 CAUTION 1. The cascade function of the system supports up to 6 machines. 2. To guarantee the success of automatic addressing, other the machines must be connected to the same power supply and powered evenly. 3. Only the Master unit can be connected to the control panel. SW9 of the Master unit must be switched “on”. The slave unit cannot be connected to the control panel.
  • Page 84 The board of the main hydraulic module supplies two types of control signal ports: Type 1: Potential-free contact. 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 13 14 15 16 17 9 1 0 2 3 2 4 2 6 7 8 9 10...
  • Page 85 Horizontal terminal boards connections diagram...
  • Page 86 Vertical terminal boards connections diagram adapter wiring Thermostat contacts connection mode A heat/cool B one zone C double zone To have the photovoltaic contact, apply the jumper on SG supplied as accessory Key: Legenda: Flow probe Sonda di mandata DHW probe Sonda sanitario B3-2 Zone 2 flow probe...
  • Page 87 The wiring of the components is illustrated below. • Connect the cable to the appropriate terminals as shown in the figure. • Secure the cable firmly. 1) For active solar station contact: 25 26 27 28 1 2 3 4 5 29 30 31 32 6 7 8 9 10 CN30...
  • Page 88 2) For the 3-way valves SV1, SV2 and SV3: 25 26 27 28 1 2 3 4 5 29 30 31 32 6 7 8 9 10 CN11 CN30 6 16 25 26 27 28 1 2 3 4 5 25 26 27 28 29 30 31 32...
  • Page 89 3) For remote switch off: CN24 CN21 CN28 CN16 CN32 CN13 CN15 CN29 CN18 CN25 CN42 CN40 DIS1 CN31 CN41 CN22 CN35 CN36 CN17 CN11 CN30 CHIUDERE: SPEGNIMENTO CLOSE: SWITCH-OFF...
  • Page 90 4) For DHW circulation pump: 25 26 27 28 1 2 3 4 5 29 30 31 32 6 7 8 9 10 CN11 CN30 Power supply Alimentazione 7 5 3 1 Pump c (zone2 circulator) Pompa c (circolatore zona2) 25 26 27 28 1 2 3 4 5...
  • Page 91 5) For room thermostat: Room thermostat type 1 (High-voltage): “POWER SUPPLY INPUT” supplies the operating voltage to RT, does not directly supply voltage to the RT connector. The port“15 L1” supplies 220V voltage to the RT connector. Room thermostat type 2 (Low-voltage): “POWER SUPPLY INPUT” supplies the working voltage to RT. NOTE There are two optional connection methods that depend on the type of room thermostat.
  • Page 92 25 26 27 28 1 2 3 4 5 29 30 31 32 6 7 8 9 10 CN11 CN30 Metodo C Method C (Double zone control) (Controllo due zone) POWER SUPPLY POWER SUPPLY INGRESSO INGRESSO ALIMENTAZIONE INPUT ALIMENTAZIONE INPUT zona1 zone1 zona2...
  • Page 93 Room thermostat type 2 (Low-Voltage): CN24 CN21 CN28 CN16 CN32 CN13 CN15 CN29 CN18 CN25 CN42 CN40 DIS1 CN31 CN41 CN22 CN35 CN36 CN17 25 26 27 14 15 CN11 CN30 Method A Metodo A (Controllo modalità impostata) (Set mode control) POWER SUPPLY INGRESSO INPUT...
  • Page 94 CN24 CN21 CN28 CN16 CN32 CN13 CN15 CN29 CN18 CN25 CN42 CN40 DIS1 CN31 CN41 CN22 CN35 CN36 CN17 25 26 27 14 15 9 10 CN11 CN30 Metodo C Method C (Double zone control) (Controllo due zone) POWER SUPPLY POWER SUPPLY INGRESSO INGRESSO...
  • Page 95 NOTE • The wiring of the thermostat matches the settings on the control panel Chap. 10.5.6 Room thermostat. • The power supply of the machine and of the room thermostat must be connected to the same Neutral Line. • When the ROOM THERMOSTAT is not set at NO, the indoor temperature sensor Ta cannot be set at a valid value. •...
  • Page 96 7) For the alarm signal output: ALARM SIGNAL SEGNALE DI ALLARME Voltage 220-240VAC Maximum operating current (A) Wiring size (mm 0.75 Type of signal of control port Type 1 8) For zone 1 P_o circulator: 25 26 27 28 1 2 3 4 5 29 30 31 32 6 7 8 9 10 CN11...
  • Page 97 9) For SMART GRID: The unit has the smart grid function, there are two ports on the PCB to connect the SG signal and the EVU signal as follows: CN24 CN21 CN28 CN16 CN32 CN13 CN15 CN29 CN18 CN25 CN42 CN40 DIS1 CN31...

  • Page 98: Start Up And Configuration

    START UP AND CONFIGURATION. The unit must be configured by the installer to be adapted to the installation environment (outside weather, installed op- tions, etc.) and to the competence of the user. CAUTION It is important that all of the information in this chapter be read in sequence by the installer and that the system be configured as applicable.

  • Page 99: Checks Prior To Operation

    10.3 CHECKS PRIOR TO OPERATION. Checks before the initial start-up. DANGER Switch of power before performing any connection. After installing the unit, check the following before switching on the circuit breaker: • Wiring on field: Make sure that the wiring on field between the local power supply panel and the unit and the valves (if applicable), the unit and the room thermostat (if applicable), the unit and the domestic hot water tank, has been connected according to the instructions given in Chap.
  • Page 100 External available static pressure VS Flow rate External available static pressure VS Flow rate Pressione statica esterna disponibile VS Portata Pressione statica esterna disponibile VS Portata Q (m Q (m 4-8 kW 12-16 kW Models 18-30 kW. The pump speed can be selected by adjusting the red knob on the pump. The point indicated by the notch indicates the pump speed.
  • Page 101 • If the error code E2 is displayed on the control panel, check wiring between the control panel and the unit. Other error codes and causes of faults are found in section 13.4 Error codes. Have qualified personnel repair the faults. 10.4.2 Troubleshooting at first installation (models 18-30 kW).

  • Page 102: On-Field Settings

    Warning signals (models 18-30 kW). • The warning signal is indicated by the LED display. • The fault warning LED and the SSM relay do not respond. • The pump keeps running with a limited output. • The faulty operating status indicated must not occur for a long period of time. The cause must be eliminated. Code Fault Cause...
  • Page 103 Information on “FOR SERVICEMAN”. The “FOR SERVICEMAN” section is designed to allow the installer to set the parameters. • Definition of the composition of the devices. • Setting the parameters. “How to access the FOR SERVICEMAN” section. Go to MENU>FOR SERVICEMAN. Press “OK”: PER SERVIZIO ASSISTENZA FOR SERVICEMAN Please input password:...
  • Page 104 10.5.1 DHW Mode setting. DHW = domestic hot water. Go to MENU>FOR SERVICEMAN>1.DHW MODE SETTING. Press OK. The following page will be displayed: 1 IMPOSTAZIONE MODO ACS 1. DHW MODE SETTING 1.1 MODO ACS 1.1 DHW MODE SÌ 1.2 DISINFEZIONE 1.2 DISINFECT SÌ...
  • Page 105 10.5.2 Cool Mode Setting. Go to MENU>FOR SERVICEMAN>2. COOL MODE SETTING. Press OK. The following page will be displayed: 2 IMPOSTAZIONE MODO FREDDO 2. COOL MODE SETTING SÌ 2.1 MODO FREDDO 2.1 COOL MODE 2.2 t_T4_FRESH_C 2.0HOURS 2.0ORE 2.3 T4CMAX 43°C 2.4 T4CMIN 20°C...
  • Page 106 10.5.5 Temp. Type Setting. Information on Temp. Type Setting. The TEMP. TYPE SETTING is used to select whether the water flow temperature or the room temperature is used to control switching the heat pump on/off. When the ROOM TEMP. is enabled, the target water flow temperature will be calculated based on the climatic curves. How to enter the Temp.
  • Page 107 If DOUBLE ZONE and ROOM TEMP. are set at YES, while WATER FLOW TEMP. is set at YES or NO, the following pages will be displayed: Additional page (zone 2) Homepage (zone 1) Pagina aggiuntiva (zona 2) Homepage (zona 1) (The double zone is effective) (La doppia zona è...
  • Page 108 10.5.8 Holiday Away Setting. The HOLIDAY AWAY SETTING is used to set the outlet water temperature to prevent freezing during holidays. Go to MENU>FOR SERVICEMAN>8. HOLIDAY AWAY SETTING . Press OK. The following page will be displayed: 8.HOLIDAY AWAY SETTING 8 IMP.
  • Page 109 10.5.11 TEST RUN. TEST RUN is used to check correct operation of the valves, de-aeration, operation of the circulation pump, cooling, heating and domestic hot water heating. Go to MENU>FOR SERVICEMAN>11.TEST RUN. Press OK. The following page will be displayed: 11 MODALITÀ...
  • Page 110 If you select AIR PURGE and press OK, the following page is displayed: 11. TEST RUN 11 MODALITÀ TEST Test run is on. Modo test attivo. Air purge is on. Sfiato aria attivo. CONFERMARE ENTER When in the air purge mode, SV1 opens, SV2 closes. 60 seconds later the pump in the unit (PUMPI) will run for 10 minutes during which the flow switch will not work.
  • Page 111 When the DHW MODE ACTIVATION function is selected, the following page is displayed: 11 MODALITÀ TEST 11. TEST RUN Test run is on. Modo test attivo. DHW mode is on. Modo ACS attivo. Water flow temperature is 45°C La temperatura del flusso d'acqua Water tank temperature is 30°C è...
  • Page 112 12 FUNZIONE SPECIALE 12. SPECIAL FUNCTION 12.1 PRERISCALD. PAVIMENTO 12.1 PREHEATING FOR FLOOR 12.2 ASCIUGATURA PAVIMENTO 12.2 FLOOR DRYING UP CONFERMA ENTER Press to scroll and press OK to enter. During the initial operation of the unit, air could remain in the water system and cause malfunctioning. It will be necessary to perform the air purge function (make sure that the air purge valve is open).
  • Page 113 Operation of the unit during preheating of the floor is described in the figure below: T1s+dT1s Pump Pompa Compressor Compressore t_interval_H t_firstFH If FLOOR DRYING UP has been selected, after having pressed OK, the following pages will appear: 12.2 ASCIUGATURA PAVIMENTO 12.2 FLOOR DRYING UP TEMPO DI RISCALDAMENTO(t_DRYUP) T_DRYUP...
  • Page 114 10.5.13 Auto Restart. The AUTO RESTART function allows you to select whether the unit reapplies the settings of the control panel when the current returns after a power failure. Go to MENU>FOR SERVICEMAN>13.AUTO RESTART. 13. AUTO RESTART 13.1 COOL/HEAT MODE 13.2 DHW MODE ADJUST The AUTO RESTART function reapplies the settings of the control panel when there is a power failure.
  • Page 115 15. INPUT DEFINE(M1M2) 15 DEFINIZ. INGRESSO 15.11 PUMPI SILENT MODE 15.11 PUMPI SILENT MODE 15.12 DFT1/DFT2 15.12 DFT1/DFT2 ALLARME ALARM ADJUST 10.5.16 Cascade Set. How to set Cascade Set. Go to MENU>FOR SERVICEMAN>16. CASCADE SET. 16 IMP. CASC. 16.CASCADE SET 16.1 PER_START 16.1 PER_START 16.2 TIME_ADJUST...
  • Page 116 10.5.18 Setting the parameters. The parameters in this chapter are shown in the table below. Order Mini- Maxi- Interval Code Status Default Unit number definition DHW MODE Enable or disable DHW mode: 0=NO, 1=YES Enable or disable disinfect mode: 0=NO, DISINFECT 1=YES Enable or disable DHW priority mode:...
  • Page 117 Order Mini- Maxi- Interval Code Status Default Unit number definition Enable or disable cooling mode: 0=NO, COOL MODE 1=YES The update time of the climatic curves for t_T4_FRESH_C hours cooling mode The highest outdoor temperature for cool- T4CMAX °C ing mode The lowest outdoor operating temperature T4CMIN °C...
  • Page 118 Order Mini- Maxi- Interval Code Status Default Unit number definition The type of zone1 terminal for heating mode: ZONE1 3.12 CVC fan coil), RAD (radiator), CRP (floor H-EMISSION radiant) The type of zone2 terminal for heating mode: ZONE2 3.13 CVC fan coil), RAD (radiator), CRP (floor H-EMISSION radiant) The delay time to stop the pump after the...
  • Page 119 Order Mini- Maxi- Interval Code Status Default Unit number definition FLOOR DRYING HEATER TIME Heating days during floor drying up (t_DRYUP) MAN. TIME High temperature holding days during floor (t_HIGHPEAK) drying up TEMP. DEC. Days of temperature drop during floor dry- TIME (t_DRYD) ing up PEAK TIME...

  • Page 120: Test Mode And Final Checks

    Order Mini- Maxi- Interval Code Status Default Unit number definition Reset the address code of the unit.(“FF” is an ADDRESS 16.3 invalid address code.) After having set the RESET address, press“UNLOCK” to confirm. Select the HMI: 17.1 HMI SET 0=MAIN, 1=SEC. HMI ADDRESS 17.2 Set the HMI address code for BMS...

  • Page 121: Maintenance And Service

    • It is prohibited to wet the unit with water. This operation could trigger electrical discharges or fire. • It is prohibited to leave the unit unattended if the protective casing has been removed. The following checks must be carried out at least once a year by qualified Immergas personnel. • Water pressure.

  • Page 122: Troubleshooting

    TROUBLESHOOTING. This section provides useful information for the diagnosis and correction of certain problems which can occur in the unit. Troubleshooting and the relative corrective actions can only be done by your local technician. 13.1 GENERAL GUIDELINES. Before beginning troubleshooting, perform a thorough visual inspection of the unit, looking for evident defects such as loose connections or faulty wiring.
  • Page 123 Symptom 5: lacking space heating capacity with low outdoor temperatures. POSSIBLE CAUSES CORRECTIVE ACTION Check that the OTHER HEATING SOURCE/Indoor unit backup heater (IBH) is enabled, Chap. 10.5 Field settings. Check whether or not the thermal protection of the backup heater has tripped (Chap. The backup heater is not on.

  • Page 124: Operation Parameters

    13.3 OPERATION PARAMETERS. This manual is intended for the installer or service engineer controlling the operating parameters. • On the main screen, go to MENU>OPERATION PARAMETER. • Press OK. There are nine pages of operation parameters, as indicated below. Press to scroll through them.

  • Page 125: Error Codes

    13.4 ERROR CODES. When a safety device trips, an error code is displayed on the control panel (which does not include an external failure). The table below lists all of the errors and corrective actions. Reset the safety device by switching the unit off and back on. If this safety device reset procedure fails, contact your local dealer.
  • Page 126 Supervision Error System Error Operation or protection anomaly Cause of fault and corrective action Code Code Check that all the shut-off valves of the water circuit are completely open. 1. Check whether the water filter needs to be cleaned. 2. Chap. 9.5 Filling with water. 3.
  • Page 127 Supervision Error System Error Operation or protection anomaly Cause of fault and corrective action Code Code 1. The system is without refrigerant volume. Charge the refrigerant at the right volume. 2. In heating mode or in DHW mode, the external heat exchanger is dirty or something is blocked on the surface.
  • Page 128 Supervision Error System Error Operation or protection anomaly Cause of fault and corrective action Code Code 1. The supply voltage of the unit is low, increase the supply voltage to the required range. 2. The space between the units is too narrow for the thermal exchange. Increase the space between the units.
  • Page 129 Supervision Error System Error Operation or protection anomaly Cause of fault and corrective action Code Code 1. Check the sensor resistance. Fault of outlet temperature sensor 2. The connector of sensor T2 is loose. Reconnect it. (T2) of refrigerant from the plate 3.
  • Page 130 Supervision Error System Error Operation or protection anomaly Cause of fault and corrective action Code Code 1. The signal wires of the slave units and of the master unit are not connected effectively. After having checked that all the signal wires are properly connected, and having made sure that there is no strong electricity or strong magnetic interferences, switch the unit back on.
  • Page 131 Supervision Error System Error Operation or protection anomaly Cause of fault and corrective action Code Code 1. Check power supply. 2. If the power supply is OK, check whether the LED light is OK, check whether PN voltage is 380V, the problem usually comes from the main board.

  • Page 132: Technical Specifications

    TECHNICAL SPECIFICATIONS. 14.1 GENERAL. Models 4-16 kW. Single-phase Single-phase Single-phase Three phase 4/6 kW 8 kW 12/14/16 kW 12/14/16 kW Nominal capacity Chap.technical data Dimensions HxWxD 712x1295x429 mm 865x1385x526 mm 865x1385x526 mm 865x1385x526 mm Dimensions of the 885x1375x475 mm 1035x1465x560 mm 1035x1465x560 mm 1035x1465x560 mm box HxWxD...

  • Page 133: Electrical Technical Specifications

    Models 18-30 kW. Three phase 18 kW 22 kW 26 kW 30 kW Nominal capacity Chap.technical data Dimensions HxWxD 1129x1558x528 mm Dimensions of the 1220x1735x565 mm box HxWxD Heat exchanger Plate heat exchanger Internal water volume 3.5 L Safety valve 0.3 Mpa Filter mesh Minimum flow rate...

  • Page 134: Information On Maintenance

    The manufacturer’s guidelines for maintenance and service must be complied with that all times. Should any doubts arise, contact the Authorised Immergas Technical Service for assistance. The following controls must be applied to systems that make use of flammable refrigerants: •...
  • Page 135 10) Repair of sealed components. a) During repairs of sealed components, all power supplies must be disconnected from the appliance in operation before removing the sealed covers, etc. If it is absolutely necessary that the appliance be energised during maintenance, a perma- nently operated leak detection device must be used, at the most critical point, to prevent a potentially hazardous situation.
  • Page 136 16) Charging procedure. In addition to conventional charging procedures, the following requirements must be complied with: • Make sure that different refrigerant contaminations do not occur when using recharging equipment. The tubes or pipes must be as short as possible to minimise the amount of refrigerant therein. •...
  • Page 137 19) Recovery. When refrigerant is removed from a system, both for maintenance operations and deactivation, good practice is recom- mended to remove the refrigerant correctly. When the refrigerant is transferred to cylinders, make sure that only adequate cylinders for recovery of refrigerant are used.

  • Page 138: Annexes - Refrigerant Cycle

    15.1 ANNEXES - REFRIGERANT CYCLE. ANNEX A: Refrigerant cycle Units 4-16 kW. Outlet Uscita Inlet Ingresso Cooling Raffreddamento Central heating Riscaldamento Code Description Code Description Refrigerant outlet temperature sensor Compressor (gas pipe) 4-way valve Water outlet temperature sensor Gas- liquid separator Water inlet temperature sensor Air side heat exchanger Expansion vessel...
  • Page 139 ANNEX B: Refrigerant cycle Units 18-30 kW. Raffreddamento Cooling Riscaldamento Central heating Code Description Code Description Refrigerant outlet temperature sensor Compressor (gas pipe) 4-way valve Water outlet temperature sensor Gas- liquid separator Water inlet temperature sensor Air side heat exchanger Automatic air purge valve Electronic expansion valve Expansion vessel...
  • Page 140 This instruction booklet is made of ecological paper immergas.com Immergas S.p.A. 42041 Brescello (RE) - Italy Tel. 0522.689011 Fax 0522.680617...

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