REMEHA Gas 320 Ace Series Installation And User Manual
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REMEHA Gas 320 Ace Series Installation And User Manual

High-efficiency standing gas boiler hmi t-control scb-01 scb-02
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United Kingdom
en
Installation and User Manual
High-efficiency standing gas boiler
Gas 320 Ace - Gas 620 Ace
HMI T-control
SCB-01
SCB-02

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Summary of Contents for REMEHA Gas 320 Ace Series

  • Page 1 United Kingdom Installation and User Manual High-efficiency standing gas boiler Gas 320 Ace - Gas 620 Ace HMI T-control SCB-01 SCB-02...
  • Page 2 Dear Customer, Thank you very much for buying this appliance. Please read through the manual carefully before using the product, and keep it in a safe place for later reference. In order to ensure continued safe and efficient operation we recommend that the product is serviced regularly. Our service and customer service organisation can assist with this.

  • Page 3: Table Of Contents

    Contents Contents Safety ................... . 5 General safety instructions .
  • Page 4 Contents 6.2.2 Description of the home screen ............44 6.2.3 Description of the main menu .

  • Page 5: Safety

    1 Safety Safety General safety instructions 1.1.1 For the installer Danger If you smell gas: 1. Do not use naked flames, do not smoke and do not operate electrical contacts or switches (doorbell, lighting, motor, lift etc.). 2. Shut off the gas supply. 3.

  • Page 6: For The End User

    1 Safety 1.1.2 For the end user Danger If you smell gas: 1. Do not use naked flames, do not smoke and do not operate electrical contacts or switches (doorbell, lighting, motor, lift etc.). 2. Shut off the gas supply. 3.

  • Page 7: Recommendations

    1 Safety Caution Ensure that the boiler is regularly serviced. Contact a qualified installer or arrange a maintenance contract for the servicing of the boiler. Caution Only genuine spare parts may be used. Important Regularly check for the presence of water and pressure in the heating installation.
  • Page 8 1 Safety Warning Always disconnect the mains supply and close the main gas tap when working on the boiler. Warning Check the entire system for leaks after maintenance and servicing work. Danger For safety reasons, we recommend fitting smoke alarms at suitable places and a CO detector near the appliance.

  • Page 9: Liabilities

    1 Safety Important Modifications to the boiler require the written approval of Remeha. Liabilities 1.3.1 Manufacturer's liability Our products are manufactured in compliance with the requirements of the various Directives applicable. They are therefore delivered with the marking and any documents necessary.
  • Page 10 1 Safety Get your installer to explain your installation to you. Have the required inspections and maintenance carried out by a qualified installer. Keep the instruction manuals in good condition close to the appliance. 7734324 - v.03 - 29092020...

  • Page 11: About This Manual

    2 About this manual About this manual General This manual is intended for the installer and end user of a Gas 320/620 Ace boiler. Additional documentation The following documentation is available in addition to this manual: Product information Service manual Water quality instructions Symbols used in the manual This manual contains special instructions, marked with specific symbols.

  • Page 12: Description Of The Product

    3 Description of the product Description of the product Boiler types The following boiler types are available: Tab.1 Boiler types Name Heat exchanger Output size Gas 320 Ace 285 279 kW 5 sections Gas 320 Ace 355 350 kW 6 sections Gas 320 Ace 430 425 kW 7 sections...
  • Page 13 3 Description of the product Fig.3 Gas 620 Ace - back 1 Flow connection 2 Flue gas outlet 3 Return connection 4 Flue gas collector AD-3001554-01 Fig.4 Gas - air unit 1 Gas pressure measuring point 2 Gas supply tube 3 Gas - air connection piece 4 Pressure measurement point 5 Non-return valve...

  • Page 14: Introduction To The E-Smart Controls Platform

    3 Description of the product Introduction to the e-Smart controls platform The Gas 320/620 Ace boiler is equipped with the e-Smart controls platform. This is a modular system, and offers compatibility and connectivity between all products that make use of the same platform. Fig.7 Generic example R-Bus...

  • Page 15: Before Installation

    4 Before installation Before installation Installation regulations Important The boiler must be installed by a qualified installer in accordance with local and national regulations. Location requirements Danger It is forbidden to store, even temporarily, combustible products and substances in or near the boiler. Caution The boiler must be installed in a frost-free area.

  • Page 16: Requirements For Water Connections

    4 Before installation Gas 320 Ace Gas 620 Ace A (mm) B (mm) C (mm) 1862 2962 1000 1032 2172 3272 1150 1032 2172 3272 1300 1032 2172 3272 Requirements for water connections Before installation, check that the connections meet the set requirements.

  • Page 17: Requirements On The Flue Gas Discharge System

    Roof terminal and connection material Flue gas discharge via the roof. Air supply opening is in the same pressure zone as the dis­ Remeha, combined with con­ charge (e.g. a concentric roof terminal). nection material from Muelink & Grol Remeha 350/350, in combi­...
  • Page 18 4 Before installation Tab.7 Type of flue gas connection: C Principle Description Recommended manufactur­ Connection in different pressure zones Connection material and roof terminal: Closed unit. Separate air supply duct. Alukan Separate flue gas discharge duct. Cox Geelen Discharging into various pressure areas. Muelink &...

  • Page 19: Material

    4 Before installation Fig.9 Minimum dimensions of shaft or Important duct C The shaft must comply with the air density requirements of the local regulations. Important □ Ø Always clean shafts thoroughly when using lining pipes and/or an air supply connection. It must be possible to inspect the lining duct.

  • Page 20: Dimensions Of Flue Gas Outlet Pipe

    4 Before installation 4.5.3 Dimensions of flue gas outlet pipe Warning The pipes connected to the flue gas adapter must satisfy the following dimension requirements. Fig.11 Dimensions of open connection External dimensions of flue gas outlet pipe Tab.11 Dimensions of pipe (min-max) 250 mm 249 - 251 mm...
  • Page 21 4 Before installation Fig.13 Room-ventilated system Gas 620 L Length of the flue to roof terminal Flue gas outlet connection Tab.13 Maximum length (L) Diameter 250 mm 300 mm 350 mm Gas 620 Ace 570 50 m 50 m 50 m Gas 620 Ace 710 31 m 50 m...

  • Page 22: Additional Guidelines

    4 Before installation Fig.16 Different pressure zones Gas 320 L Combined length of the flue and air supply channel Flue gas outlet connection Air supply connection Tab.16 Maximum length (L) Diameter 250 mm 300 mm Gas 320 Ace 285 100 m 100 m Gas 320 Ace 355 100 m...

  • Page 23: Requirements For The Electrical Connections

    4 Before installation Warning If the flue gas outlet and air supply materials are not installed in accordance with the instructions (e.g. not leak-proof, not correctly bracketed), this can result in dangerous situations and/or physical injury. Make sure that the flue gas outlet pipe towards the boiler has a sufficient gradient (at least 50 mm per metre) and that there is a sufficient condensate collector and discharge (at least 1 m before the outlet of the boiler).
  • Page 24 4 Before installation Important To use these examples, basic installation knowledge is needed. This explanation shows schemes for the SCB-10 with an AD249 fitted. On a SCB-02, not all zones are available. The installation example tables are laid out as follows: Fig.19 Zone The schemes are divided in columns.

  • Page 25: How To Find The Desired Installation Example

    4 Before installation Fig.24 Normal connector AD-3001511-01 Fig.25 Combined connector These connectors combine two plugs into one connector. In the installation examples they appear with one highlighted part, which is to be used. AD-3001512-01 Fig.26 Connector to be bridged Row B shows all connectors to be bridged. Connect a bridge to this connector.
  • Page 26 4 Before installation Number Description Cascade of three boilers with primary heating circuit (internal pump) Cascade of two boilers with primary heating circuit (external pump) Cascade of three boilers with primary heating circuit (exter­ nal pump) Cascade of two boilers with primary and secondary heating circuit (internal pump) Cascade of three boilers with primary and secondary heat­...
  • Page 27 4 Before installation Fig.31 Zone 2 (CircB) Tab.23 Zone 2 (CircB) Number Description Empty (no zone) Direct circuit Mixing circuit Swimming pool (direct) High temperature Fan convector (direct) Domestic hot water tank Domestic hot water tank (electrical) AD-3001531-01 Time program Process heat Domestic hot water tank (layered) Domestic hot water tank (internal)

  • Page 28: Symbols Used

    4 Before installation 4.8.3 Symbols used Tab.27 Tubing Symbol Explanation Symbol Explanation Flow pipe Return pipe Flow collector pipe Return collector pipe Drinking water supply Tab.28 Hydraulic components Symbol Explanation Symbol Explanation Mixing valve Valve, electronically actuated Plate heat exchanger Low loss header Pump Tab.29...

  • Page 29: Scb-02 Installation Example 01-01-02-10-00-00-00

    4 Before installation 4.8.4 SCB-02 Installation example 01-01-02-10-00-00-00 Tab.33 Hydraulic and electrical connections for: Boiler with primary heating circuit (no pump) - Direct connection - Mixing circuit - Domestic hot water tank with one sensor and pump Producer Connection CircA CircB AD-3001435-01 AD-3001437-01...

  • Page 30: Scb-02 Installation Example 01-01-01-10-00-00-00

    4 Before installation Tab.35 CircB - parameters to be set Code Display text Menu path Set to CP021 Zone Function 10 = DHW Layered > Installation Setup > SCB-02 > CIRCB 1 > Parameters, counters, signals > Parameters 4.8.5 SCB-02 Installation example 01-01-01-10-00-00-00 Tab.36 Hydraulic and electrical connections for: Boiler with primary heating circuit (no pump) - Direct connection - Direct circuit - Domestic hot water tank with one sensor and pump...
  • Page 31 4 Before installation Tab.37 CircA - parameters to be set Code Display text Menu path Set to CP020 Zone Function 1 = Direct > Installation Setup > SCB-02 > CIRCA 1 > Parameters, counters, signals > Parameters Tab.38 CircB - parameters to be set Code Display text Menu path...

  • Page 32: Installation

    5 Installation Installation Positioning the boiler Refer to the lifting instructions document on how to unpack and transport the boiler to the location. Fig.35 Place the boiler 1. Manoeuvre the boiler to the exact location. 2. Unscrew the levelling feet until they stand firmly on the floor. AD-3001416-02 Fig.36 Open the casing...

  • Page 33: Connecting The Condensate Discharge Pipe

    5 Installation Fig.38 Connecting the heating circuit 1. Remove the dust caps from the flow and return connections. 2. Connect a safety valve to the flow connection. 3. Fit the system flow pipe to the flow connection. 4. Fit the system return pipe to the return connection. AD-3001428-01 Connecting the condensate discharge pipe For boiler Gas 620 Ace, apply the instructions to each boiler module.

  • Page 34: Connecting The Air Inlet And Flue Gas Outlet

    5 Installation Connecting the air inlet and flue gas outlet Fig.41 Fit the flue gas outlet pipe to the 1. Fit the flue gas outlet pipe to the boiler. boiler 2. Fit the subsequent flue gas outlet pipes in accordance with the manufacturer's instructions.

  • Page 35: The Cb-01 Connection Pcb

    5 Installation 5.6.2 The CB-01 connection PCB Fig.44 Connection PCB CB-01 The CB-01 is placed in the control box. It provides easy access to all the standard connectors. S-Bus Pump 0-10 On/off Pump Tout AD-3000672-03 Connecting the system pump Fig.45 System pump 1.
  • Page 36 5 Installation Analogue temperature regulation (°C) Fig.48 Temperature regulation 1 Boiler on 2 Parameter CP010 3 Maximum flow temperature 4 Calculated value The 0–10 V signal controls the boiler supply temperature. This control modulates on the basis of flow temperature. The output varies between the minimum and maximum value on the basis of the flow temperature set point calculated by the controller.

  • Page 37: The Scb-01 Expansion Pcb

    5 Installation Blocking input Caution Only suitable for potential-free contacts (dry contact). Important First remove the bridge if this input is used. Fig.51 Blocking input The boiler has a blocking input. A potential-free contact can be connected to the BL terminals of the connector. If the contact is opened, the boiler will be blocked.

  • Page 38: The Scb-02 Expansion Pcb

    5 Installation Fig.54 Status notifications Connect a relais as follows: Nc Normally closed contact. Contact will open when status occurs. Status A Status B C Main contact. C No C No No Normally opened contact. Contact will close when status occurs. Select the desired status notification (setting) using parameter EP018 and EP019.
  • Page 39 5 Installation Connecting a domestic hot water (DHW) pump Connecting a domestic hot water (DHW) pump. The maximum power consumption is 300 VA. Fig.57 DHW pump connector Connect the pump as follows: Earth N Neutral L Phase AD-4000123-01 Connecting a mixing valve The mixing valve connector can be used to connect a mixing valve (230 VAC) for use in a boiler group (zone).
  • Page 40 5 Installation Fig.61 Connecting the calorifier sensor/ 1. Connect the two-wire cable to the Tdhw terminals of the connector. thermostat Tdhw AD-3000971-02 Connecting a zone temperature sensor A zone temperature sensor can be connected to the Tflow terminals of the connector.

  • Page 41: Connecting The Power Cable

    5 Installation Caution If possible, use the pump modulation signal. This provides the most accurate pump control. If the automatic burner unit does not support pump modulation, the pump will behave as an on/off pump. 5.6.5 Connecting the power cable The power connection is located in the rear part of the control box.

  • Page 42: Cable Routing In The Control Box Front Part

    5 Installation 5.6.6 Cable routing in the control box front part Caution Make sure the cable routing matches the illustration when closing the control box. Fig.67 Cable routing in the control box front part AD-3001768-01 7734324 - v.03 - 29092020...

  • Page 43: Preparation Of Commissioning

    6 Preparation of commissioning Preparation of commissioning Checklist before commissioning 6.1.1 Filling the installation The recommended water pressure is between 1.5 bar and 2.0 bar. Proceed as follows to fill the installation: 1. Disconnect the boiler from the power supply. Fig.68 Filling and drain valve location 2.

  • Page 44: Control Panel Description

    6 Preparation of commissioning Control panel description 6.2.1 Control panel components Fig.71 Control panel components 1 Rotary knob to select a tile, menu or setting 2 Confirm button to confirm the selection 3 Back button Short button press: Return to the previous level or previous menu Long button press: Return to home screen 4 Menu button...

  • Page 45: Meaning Of The Icons In The Display

    6 Preparation of commissioning Tab.43 Available menus for the installer Description Icon Installation Setup Commissioning Menu Advanced Service Menu Error History System Settings Version Information 6.2.4 Meaning of the icons in the display Tab.44 Icons Icon Description User menu: user-level parameters can be configured. Installer menu: installer-level parameter can be configured.
  • Page 46 6 Preparation of commissioning Tab.45 Icons - Zones Icon Description All zones (groups) icon. Living room icon. Kitchen icon. Bedroom icon. Study icon. Cellar icon. 7734324 - v.03 - 29092020...

  • Page 47: Commissioning

    7 Commissioning Commissioning Commissioning procedure Warning Commissioning must be done by a qualified installer. If adapting to another gas type, the gas valve unit must be adjusted before switching on the boiler. 1. Open the main gas valve. 2. Open the appliance gas valve. 3.
  • Page 48 7 Commissioning The flue gas analyser must have a minimum accuracy of ±0.25% O Fig.74 Insert the probe for the flue gas 1. Unscrew the cap from the flue gas measuring point. analyser 2. Insert the probe for the flue gas analyser into the measurement opening.
  • Page 49 7 Commissioning Fig.76 Adjusting screw A 5. Use the adjustment screw A to set the percentage of O for the gas type being used to the nominal value. Increasing the gas flow, will decrease O and increase CO . The direction in which the adjusting screw must be turned to increase or decrease the gas flow is indicated on the gas control valve.

  • Page 50: Final Instructions

    7 Commissioning 3. Compare the measured value with the checking values in the table. Tab.49 Checking/setting values for O at low load for G20 (H gas) Values at low load for G20 (H gas) Gas 320 Ace 285 – 5.4 8.7 –...

  • Page 51: Saving The Commissioning Settings

    7 Commissioning 9. Check the water pressure. If necessary, top up the central heating system. Fig.79 Example filled-in sticker 10. Fill in the following data on the sticker included, and attach it next to the data plate on the appliance. The gas supply pressure;...

  • Page 52: Settings

    8 Settings Settings Introduction to parameter codes Fig.80 Code on a HMI T-control The controls platform makes use of an advanced system to categorise parameters, measurements and counters. Knowing the logic behind these 00:12 ......codes, makes it easier to identify them. The code consists of two letters ....

  • Page 53: List Of Parameters

    8 Settings Tab.50 CU-GH13 Icon Zone or function Description Internal DHW (Internal DHW) Domestic hot water produced by boiler CIRCA / CH Central heating circuit Commercial boiler Gas boiler Gas fired appliance Gas boiler Tab.51 Configuring a zone or function of CU-GH13 or SCB-02 Parameters, counters, signals Description Parameters...
  • Page 54 8 Settings Code Display text Description Adjustment range Subme­ CP081 User Room setpoint tempera­ 5 - 30 °C Direct T.Room Ac­ ture of the user zone activ­ zone tivity CP082 User Room setpoint tempera­ 5 - 30 °C Direct T.Room Ac­ ture of the user zone activ­...
  • Page 55 8 Settings Tab.55 Factory settings at installer level Code Display text Description Adjustment range Subme­ AP001 BL function BL input function selection 1 = Full blocking 2 = Partial blocking fired ap­ 3 = User reset lock­ pliance 4 = Backup re­ lieved 5 = Generator re­...
  • Page 56 8 Settings Code Display text Description Adjustment range Subme­ AP091 Outside Type of outside sensor 0 = Auto Outdoor Sens. connection to be used 1 = Wired sensor tempera­ Source 2 = Wireless sen­ ture 3 = Internet meas­ ured 4 = None AP098 BL1 contact...
  • Page 57 8 Settings Code Display text Description Adjustment range Subme­ CP480 ScreedStart­ Setting of the start temper­ 20 - 50 °C Direct Temp ature of the screed drying zone program of the zone CP490 ScreedStop­ Setting of the stop temper­ 20 - 50 °C Direct Temp ature of the screed drying...
  • Page 58 8 Settings Code Display text Description Adjustment range Subme­ PP018 Min CH Minimum central heating 20 - 100 % pump speed pump speed (%) fired ap­ pliance PP023 CH Hystere­ Temperature hysteresis 1 - 25 °C for the generator to start fired ap­...

  • Page 59: Cu-Gh13 Control Unit Settings - Gas 620 Ace

    8 Settings Code Display text Description Adjustment range Subme­ DP003 Abs. max Maximum fan speed on 1000 - 7000 Rpm 5200 5500 3500 3800 4300 4100 fan DHW Domestic Hot Water fired ap­ pliance DP010 Hysteresis Temperature hysteresis 1 - 10 °C for the heat generator to fired ap­...
  • Page 60 8 Settings Tab.59 Factory settings at basic installer level Code Display text Description Adjustment range Subme­ 1000 1150 1300 AP016 CH function Enable central heating 0 = Off heat demand processing 1 = On fired ap­ pliance AP017 DHW func­ Enable domestic hot water 0 = Off tion on...
  • Page 61 8 Settings Code Display text Description Adjustment range Subme­ 1000 1150 1300 CP660 Icon display Choice icon to display this 0 = None Direct zone zone 1 = All zone 2 = Bedroom 3 = Livingroom 4 = Study 5 = Outdoor 6 = Kitchen 7 = Basement 8 = Swimming Pool...
  • Page 62 8 Settings Code Display text Description Adjustment range Subme­ 1000 1150 1300 AP010 Service noti­ Select the type of service 0 = None fication notification 1 = Custom notifi­ fired ap­ cation pliance 2 = ABC notifica­ tion AP011 Service Hours powered to raise a 100 - 25500 Hours 8750 8750 8750 8750 8750 8750...
  • Page 63 8 Settings Code Display text Description Adjustment range Subme­ 1000 1150 1300 CP040 Postrun Pump post runtime of the 0 - 20 Min Direct zone pump zone zone CP060 RoomT. Wished room zone tem­ 5 - 20 °C Direct Holiday perature on holiday period zone CP070...
  • Page 64 8 Settings Code Display text Description Adjustment range Subme­ 1000 1150 1300 GP008 Fan RPM Minimum fan speed during 900 - 8500 Rpm 1900 1850 1300 1250 1400 1350 Central Heating + Domes­ fired ap­ tic Hot Water mode pliance Pneu­...
  • Page 65 8 Settings Code Display text Description Adjustment range Subme­ 1000 1150 1300 AP102 Boiler Pump Configuration of the boiler 0 = No function pump as zone pump or 1 = Yes fired ap­ system pump (feed low­ pliance loss header) CP010 Tflow set­...
  • Page 66 8 Settings Code Display text Description Adjustment range Subme­ 1000 1150 1300 PP007 Min anti-cy­ Minimum heat generator 1 - 20 Min cle time holding time that can be fired ap­ reached after a stop pliance PP012 Stabilization Stabilization time after 0 - 180 Sec time heat generator start for...

  • Page 67: Maintenance

    9 Maintenance Maintenance Maintenance regulations Important The boiler must be maintained by a qualified installer in accordance with local and national regulations. An annual inspection is mandatory. Perform the standard checking and maintenance procedures once a year. Perform the specific maintenance procedures if necessary. Important Adjust the frequency of inspection and service to the conditions of use.

  • Page 68: Disposal And Recycling

    9 Maintenance Disposal and recycling Caution Only qualified professionals are permitted to remove and dispose of the boiler, in accordance with local and national regulations. Fig.86 If you need to remove the boiler, proceed as follows: 1. Switch off the boiler. 2.

  • Page 69: 10 Troubleshooting

    The meaning of the code can be found in the various error code tables. Important The error code is needed to find the cause of the error quickly and correctly and for any support from Remeha. 10.1.1 Display of error codes Fig.87...

  • Page 70: Blocking

    10 Troubleshooting Code Display text Description Solution A.02.37 Uncritic device lost Uncritical device has been discon­ SCB not found: nected Bad connection: check the wiring and connec­ tors Faulty SCB: Replace SCB A.02.45 Full Can Conn Matrix Full Can Connection Matrix SCB not found: Carry out an auto-detect A.02.46...
  • Page 71 10 Troubleshooting Code Display text Description Solution H.01.06 Max Delta TH-TF Maximum difference between heat Maximum difference between heat exchanger exchanger temperature and flow and flow temperature exceeded: temperature No flow or insufficient flow: Check the circulation (direction, pump, valves). Check the water pressure.
  • Page 72 10 Troubleshooting Code Display text Description Solution H.01.14 Max Tflow Flow temperature has exceeded the Flow temperature sensor above normal range: maximum operating value Bad connection: check the wiring and connec­ tors No flow or insufficient flow: Check the circulation (direction, pump, valves) Check the water pressure Check the cleanliness of the heat exchanger...

  • Page 73: Locking

    10 Troubleshooting Code Display text Description Solution H.02.62 Unsupported function Zone B doesn't support the selected Zone B function setting is not correct or is not al­ function lowed on this circuit: Check the setting of parameter CP021. H.02.64 Unsupported function Zone D doesn't support the selected Zone C function (DHW) setting is not correct or is function...
  • Page 74 10 Troubleshooting Code Display text Description Solution E.00.05 TReturn Closed Return temperature sensor is either Return temperature sensor short-circuited: shorted or measures a temperature Bad connection: check the wiring and connec­ above range tors Incorrectly fitted sensor: check that the sensor has been correctly fitted Faulty sensor: replace the sensor E.00.08...
  • Page 75 10 Troubleshooting Code Display text Description Solution E.01.12 Return Higher Flow Return tempearture has a higher Flow and return reversed: temperature value than the flow tem­ Bad connection: check the wiring and connec­ perature tors Water circulation in wrong direction: check the circulation (direction, pump, valves) Incorrectly fitted sensor: check that the sensor has been correctly fitted...
  • Page 76 10 Troubleshooting Code Display text Description Solution E.04.04 TFlue Closed Flue temperature sensor is either Flue gas temperature sensor short-circuited: shorted or measuring a temperature Bad connection: check the wiring and connec­ above range tors Incorrectly fitted sensor: check that the sensor has been correctly fitted Faulty sensor: replace the sensor E.04.05...

  • Page 77: Error History

    10 Troubleshooting Code Display text Description Solution E.04.11 VPS Gas Valve proving failed Gas leakage control fault: Bad connection: check the wiring and connec­ tors Gas leakage control VPS faulty: Replace the Gas valve unit faulty: Replace the gas valve unit E.04.12 False flame...
  • Page 78 10 Troubleshooting Fig.88 Installer level 3. Use the rotary knob to select code: 0012 4. Press the button to confirm the selection........00:12 When the installer level is enabled, the status of the tile [ ..

  • Page 79: 11 User Instructions

    11 User instructions 11 User instructions 11.1 Start-up Start up the boiler as follows: 1. Open the boiler gas tap. 2. Insert the boiler plug into an earthed socket. 3. Check the water pressure of the system. If necessary, top up the system.

  • Page 80: Changing The Display Settings

    11 User instructions Tab.69 Extended menu to configure a heating circuit Zone configuration Menu Function Short temperature change Change the room temperature temporarily, if required OperatingZoneMode Select the heating operating mode: Scheduling, Manual or Antifrost Manu ZoneRoomTempSet Set the room temperature manually to a fixed setting Heating Schedule Create a timer program (up to 3 programs allowed).

  • Page 81: Reading The Installer's Name And Phone Number

    11 User instructions 8. Press the button to confirm the selection. Activities scheduled for Monday are displayed. The last scheduled activity of a day is active until the first activity of the next day. At initial start-up, all weekdays have two standard activities; Home starting at 6:00 and Sleep starting at 22:00.

  • Page 82: Cleaning The Casing

    11 User instructions 11.9 Cleaning the casing 1. Clean the outside of the appliance using a damp cloth and a mild detergent. 7734324 - v.03 - 29092020...

  • Page 83: 12 Technical Specifications

    12 Technical specifications 12 Technical specifications 12.1 Homologations 12.1.1 Certifications Tab.71 Certifications CE identification number PIN 0063CU3937 Class NOx Type of flue gas connection B (1) EN 15502–1 (2) When installing a boiler with connection type B , the IP rating of the boiler is lowered to IP20.

  • Page 84: Electrical Diagram

    12 Technical specifications 12.2 Electrical diagram Fig.93 Electrical diagram 230V L N PE1 L` N` X37-1 X37-... X37-7 X041 X141-1 X04 / X05 X201 X203 X205 X200 X202 X204 X101 X111 X102 X112 AD-3001548-03 1 Line filter 12 Ignition transformer power supply 2 On / off switch 13 Fan power supply 3 SCB expansion board power supply...

  • Page 85: Dimensions And Connections Gas 320 Ace

    12 Technical specifications 12.3 Dimensions and connections Gas 320 Ace Fig.94 Dimensions Gas 320 Ace AD-3001442-02 Gas 320 Ace Base length 1833 mm 2142 mm Flue gas outlet centre dimension 1635 mm 1944 mm Total length 1862 mm 2172 mm Casing length 1490 mm 1800 mm...

  • Page 86: Dimensions And Connections Gas 620 Ace

    12 Technical specifications 12.4 Dimensions and connections Gas 620 Ace Fig.95 Dimensions Gas 620 Ace AD-3001443-02 Gas 620 Ace 1000 1150 1300 Base length 1833 mm 2142 mm Flue gas outlet centre dimension 1582 mm 1892 mm Total length 1862 mm 2172 mm Casing length 1490 mm...

  • Page 87: Hydraulic Resistance

    12 Technical specifications 12.5 Hydraulic resistance Tab.73 Hydraulic resistance Hydraulic resistance in mbar Heat exchanger size ∆T 10 ∆T 11 ∆T 12 ∆T 13 ∆T 14 ∆T 15 ∆T 16 ∆T 17 ∆T 18 ∆T 19 ∆T 20 °C °C °C °C °C...
  • Page 88 12 Technical specifications Gas 320 Ace Min load central heating ef­ Return tem­ 85.2 85.8 86.2 86.7 87.1 87.6 ficiency perature 60 °C Part load central heating ef­ ) Return 98.3 98.1 97.9 97.7 97.5 97.3 ficiency temperature 30 °C Factory setting Tab.75 Gas and flue gas data...
  • Page 89 12 Technical specifications Gas 320 Ace Water side pressure drop ΔT=11K mbar Standby loss With heat ex­ (ΔT = changer insula­ 30K) tion kit (1) ΔT = (boiler temperature – ambient temperature). Tab.77 Electrical data Gas 320 Ace Supply voltage V~/Hz 230/50 230/50...

  • Page 90: Gas 620 Ace Technical Data

    12 Technical specifications Gas 320 Ace ƞ Useful efficiency at rated heat output and 88.3 88.4 88.5 88.6 88.7 88.7 high temperature regime Useful efficiency at 30% of rated heat output ƞ 98.4 98.2 98.0 97.8 97.6 97.4 and low temperature regime Auxiliary electricity consumption elmax Full load...
  • Page 91 12 Technical specifications Gas 620 Ace 1000 1150 1300 Min load central heating ef­ Return tem­ 85.2 85.8 86.2 86.7 87.1 87.6 ficiency perature 60 °C Part load central heating ef­ ) Return 98.3 98.1 97.9 97.7 97.5 97.3 ficiency temperature 30 °C Factory setting...
  • Page 92 12 Technical specifications Gas 620 Ace 1000 1150 1300 Water side pressure drop ΔT=20K, per heat mbar exchanger Water side pressure drop ΔT=11K, per heat mbar exchanger Standby loss With heat ex­ (ΔT = 1016 1044 1074 changer insula­ 30K) tion kit (1) ΔT = (boiler temperature –...
  • Page 93 12 Technical specifications Gas 620 Ace 1000 1150 1300 Useful heat output at 30% of rated heat out­ 174.3 217.8 262.4 305.6 350.3 395.6 put and low temperature regime Seasonal space heating energy efficiency ƞ ƞ Useful efficiency at rated heat output and 88.3 88.4 88.5...

  • Page 94: 13 Appendix

    13 Appendix 13.1 ErP information 13.1.1 Product fiche Tab.86 Product fiche Remeha - Gas 320 Ace Seasonal space heating energy efficiency class (Prated or Psup) Rated heat output Seasonal space heating energy efficiency Annual energy consumption Sound power level L indoors Tab.87...
  • Page 95 Original instructions - © Copyright All technical and technological information contained in these technical instructions, as well as any drawings and technical descriptions supplied, remain our property and shall not be multiplied without our prior consent in writing. Subject to alterations.
  • Page 96 T +44 (0)118 978 3434 F +44 (0)118 978 6977 E boilers@remeha.co.uk Remeha Commercial UK Innovations House 3 Oaklands Business Centre Oaklands Park RG41 2FD Wokingham 7734324 - v.03 - 29092020 7734324...

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