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REMEHA Quinta 30 Technical Information

High-effi ciency condensing boiler
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Technical information

Remeha Quinta 30
1
• High-effi ciency
condensing boiler for
wall mounted
installation
• Output: 5.6 - 28 kW

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Summary of Contents for REMEHA Quinta 30

  • Page 1: Technical Information

    Technical information Remeha Quinta 30 • High-effi ciency condensing boiler for wall mounted installation • Output: 5.6 - 28 kW...

  • Page 2: Table Of Contents

    Remeha Quinta 30 TABLE OF CONTENT Preface General description of the boiler Construction Boiler layout Operating principle Technical data and dimensions Dimensions Technical data General Specification Efficiency information Annual efficiency Heat to water efficiency Application information Control and safety equipment The control panel 6.1.1...

  • Page 3: Dhw Temperature Set Point

    6.6.5 Starting point modulation (*) 6.6.6 Interface selection (() 6.6.7 DHW cut-in temperature (B) 6.6.8 Fan Speed at DHW full load (C) 6.6.9 Forced part load time after start (HTG only - G) 6.6.10 DHW control stop set point (I) 6.6.11 DHW control option (J) 6.6.12...
  • Page 4 Remeha Quinta 30 Electrical installation General Specifications 8.2.1 Electrical supply 8.2.2 Control box 8.2.3 Fuse specification 8.2.4 Boiler temperature control 8.2.5 High limit temperature protection 8.2.6 Low-water protection (flow and content) External connections Boiler control 8.4.1 Modulating (two wire control) 8.4.2...

  • Page 5: Preface

    PREFACE These technical instructions contain useful and important information for the correct operation and maintenance of the Remeha HTG boiler, model Quinta 30. Read these instructions carefully before putting the boiler into operation, familiarise yourself with it’s control functions and operation, strictly observing the instructions given.

  • Page 6: General Description Of The Boiler

    Remeha Quinta 30 GENERAL DESCRIPTION OF THE BOILER The Remeha Quinta 30 is a wall hung condensing boiler which may be also instal- led free standing on a suitable frame (option). The one piece cast aluminium heat exchanger and other major components are contained within a sealed air box. This forms the main boiler casing with a removable front section for maintenance purposes.

  • Page 7: Construction

    CONSTRUCTION 2.1 Boiler layout Fig. 01 Boiler layout Remeha Quinta 30 and boiler layout with optional 3-way valve 04.W3H.79.00003 + 04.W3H.79.00011 1. Air supply fan. 11. Flue gas measure point 2. Pre-mix burner 12. Automatic air vent 3. Combined ignition/ionisation probe 13.

  • Page 8: Operating Principle

    Remeha Quinta 30 2.2 Operating principle Combustion air is drawn into the closed air box by a variable speed fan, through the air inlet connection from the plant room (open flued) or from outside via the concentric flue system (room sealed). On the inlet side of the fan is a specially designed venturi which is connected to the outlet side of the gas combi block.

  • Page 9: Technical Data And Dimensions

    Ø8 Hose automatic air vent Ø125 Ø80 Mounting holes Fig. 02 Dimensions Remeha Quinta 30 04.W3H.79.00010 + 04.W3H.79.00013 Return connection 22 mm Ø (m) DHW primary flow connection 22 mm Ø (m) (when optional 3-way valve is fitted) Flow connection 22 mm Ø (m) Gas connection 15 mm Ø...

  • Page 10: Technical Data

    Remeha Quinta 30 3.2 Technical data Boiler type Quinta 30 General Colour side and front casing BS RAL 9016 Colour instrument panel flap 7036 Boiler control options (External input) On/off, High/low, Analog 0 -10V Communicating Modulation (Two wire control) Nominal output (80/60ºC) 5.6 –...

  • Page 11: General Specification

    Boiler control options (External input) On/off, High/low, Analog 0 -10V Communicating Modulation (Two wire control) Table 01 Technical data remeha Quinta 30 Nominal output (80/60ºC) 5.6 – 28.0 Nominal output (40/30ºC) 5.9 – 29.6 3.3 General Specification Nominal input (GCV / Hs) 6.3 –...

  • Page 12: Efficiency Information

    Note: NCV = Hi, GCV = Hs APPLICATION INFORMATION The Quinta 30 can be used on all new and re-furbishment projects in both single and multiple configurations. Conventional and room sealed flue system capability means that the boiler can be sited almost anywhere within a building.

  • Page 13: Layout Of The Control Panel

    6.1.2 Layout of the control panel Fig. 03 Control panel 00.W4H.79.00044 a. ‘code’-display Indicates on user level: operating mode: only one digit 1 setting mode: digit with dot ! read-out mode: digit with flashing dot ! shut-off mode: letter b forced full load: letter h forced part load: letter l Additional indication on...

  • Page 14: Combined Key Functions (In Operating Mode Only)

    Remeha Quinta 30 6.1.3 Combined key functions (in operating mode only) When the boiler is in the operating mode, keys with the illuminated symbols above have a double function (Program and Switch). To use them for a Program function press the key once - and for a Switch function (either on or off) press the key and hold for 2 secs.

  • Page 15: Display Of Values With More Than Two Digits

    Forced mode ‘low’ (l[[) By pressing the ‘m’ and [-]-key simultaneously in operating mode, the boiler will burn at minimum power. The letter l will now appear on the display. By pressing the [+]and [-]-keys simultaneously, the boiler will return to operating mode. Following a manual override the boiler will return to normal (auto control) if no keys are used within a 15 minute period.

  • Page 16: Flow Diagram Control System

    Remeha Quinta 30 6.2 Flow diagram control system press the ‘m’ -key press the ‘s’-key ‘code’-display tdisplay Operating mode, Flow temperature or shut-off code see Par. 6.3 only digit or letter ! Flow temperature set point Setting mode, service level, see Par.6.5...
  • Page 17 tdisplay ‘code’-display Actual flow temperature Actual return temperature Read-out mode, Actual DHW temperature (with sensor) see Par. 6.7 Actual outdoor temperature (with Chronotherm sensor) digit or letter with flashing Flow temperature (set point) Actual heat demand status & Calculated HTG cut-in temperature Actual flow temperature rise service engineer level only: C12 Speed mode,...

  • Page 18: Operating Mode (X

    Remeha Quinta 30 6.3 Operating mode (x[[) During operation the code-display shows the status (position in cycle) of the boiler, whilst the t-display indicates the actual flow temperature. The digits or letters in the code-display have the following meaning: Code Description Standby: there is no heat demand from control system.

  • Page 19: Shut-Off Mode (Bxx)

    6.4 Shut-off mode (bXX) During shut-off mode condition the code-display will show a b, whilst the t-display indicates the cause with two flashing dots. Table below details cause of shut-off mode. Code Description Maximum acceptable flow temperature rise exceeded. The boiler will shut off for ten minutes, then restart.

  • Page 20: Setting Mode User Level (X

    Remeha Quinta 30 6.5 Setting mode user level (X[[) Code Description Setting range Preset Flow temperature set 20–90 ºC point Pump run on time HTG = pump run on 10 seconds 01–15= pump run on in minutes DHW temperature set 20–75 °C (only with sensor)

  • Page 21: Pump Run On Time Htg (@)

    6.5.2 Pump run on time HTG (@) Pump run on time can be adjusted (Please refer to installation contractor) - Press the ‘m’ -key until the digit ! (with dot) appears in the ‘code’-display. - Press the ‘s’-key until the digit @ (with dot) appears in the ‘code’-display. - Set the required value, using the [+] and [-]-keys.

  • Page 22: Setting Mode Service Level (X00)

    Remeha Quinta 30 Example: xy 11 - Boiler enabled internal modulation with booster on * - HTG and DHW on (as default) 42 - Analog signal 0 -10V on temperature - HTG on and DHW off 23 - Boiler high/low - HTG off and DHW on...
  • Page 23 Warning: changing factory defaults without reference to the tables contained in this manual may result in incorrect operation. - To delete the service code press the ‘reset’-key once - If no keys are pressed over a 15 minute period the service code will delete auto- matically Code Description...

  • Page 24: Flow Temperature Set Point During Forced Part Load ($)

    Forced part load time after start 00 – 15 minutes (HTG) Fan speed at start May not be changed! Remeha Quinta 30 DHW control stop or boiler 00 – 30 °C modulation set point (based on parameter #) DHW control option...

  • Page 25: Fan Speed At Part Load (Htg And Dhw - &)

    6.6.4 Fan speed at part load (HTG and DHW - &) Adjustable from 20% to 100% output (= 1200 to 5300 rpm), factory default 12 (20% output). This value sets the minimum output of the boiler. 6.6.5 Starting point modulation (*) Adjustable from 5 to 30°C, factory default 25°C.

  • Page 26: Fan Speed At Dhw Full Load (C)

    Remeha Quinta 30 Boiler modulation during continuing DHW demand Sensor, thermostat and rematic control: ® - The boiler will modulate when the flow temp equals the DHW set point + DHW con- trol stop set point (parameter I) i.e. 55+20 = 75.

  • Page 27: Htg Cut In Temp (N)

    6.6.12 HTG cut in temp (N) Adjustable 1) (-10) to 20 °C, factory default 03. This value sets the ∆t below actual return temp at the moment of control stop during HTG demand. A control stop occurs when the flow temp equals the flow temp set point + 5°C. HTG cut in temperature = actual return temperature at the moment of control stop (e.g.

  • Page 28: Read-Out Mode (X00)

    Remeha Quinta 30 6.7 Read-out mode (X00) To check boiler set points and values. Using the ‘m’-key, press repeatedly until !(flashing dot) appears in the ‘code’-display. Then select the required code @, # or $ etc. using the ‘s’-key. Code...

  • Page 29: Installation Instructions

    Standards and codes of practice, including the latest local and national regulations for this type of equipment. Important: The Remeha Quinta 30 is a CE certified appliance and must not therefore be modified or installed in any way contrary to these “Installation and Maintenance Instructions”.
  • Page 30 7.3 Flue gas discharge and air supply 7.3.1 General The Remeha Quinta 30 is suitable for conventional room ventilated or room sealed operation. Specify at the time of ordering if the boiler is to be installed for twin pipe room sealed operation. In that case, the boiler will be supplied with an adaptor plate (concentric to twin pipe).

  • Page 31: Classification Due To Discharging Flue Gases

    Horizontal components in the flue gas discharge system should slope towards the boi- ler. Horizontal components in the air supply system should slope towards the supply opening. Care should be taken when siting flue exit positions as a vapour plume will be visible when the boiler is operational (flue gas temperature will be less than 75°C resulting in the water vapour condensing out on contact with the air).

  • Page 32: Material And Installation

    Remeha Quinta 30 Room sealed installations: It is unnecessary to provide separate combustion air to the room/compartment as this is supplied direct to the boiler via the concentric or eccentric system and the room sea- led horizontal or vertical terminal unit.

  • Page 33: Single Boiler Conventional Flue

    Table 13 Calculation data conventional flue Example: Quinta 30, total length 15 m, 2 bends 90°. 15 m + 2 x 4 = 23 < 40: flue OK. Note: If the design parameters are outside the values shown in the above table or there is any doubt over the flue system, please contact our technical department for calculation to be undertaken.

  • Page 34: Single Boiler, Room Sealed Flue

    Table 14 Calculation data room sealed applications Example: Quinta 30, total length 10 m, 2 bends 90°. 80 mm: 10 m + 2 x 4 = 18 m < 20 m: flue OK. Note: If the design parameters are outside the values shown in the above table or there is any doubt over the flue system, please contact our technical department for calculation to be undertaken.

  • Page 35: Different Pressure Zones

    Fig. 09 Different pressure zones 04.W3H.79.00008 The Remeha Quinta boiler (twin connection only) is capable of operating with the air inlet and flue outlet in different pressure zones (CLV System). There are some restrictions to the flue/air inlet lengths and max height differences which have been detailed in Fig.

  • Page 36: Modular Installations

    Remeha Quinta 30 Note: If the design parameters are outside the values shown in the above table or there is any doubt over the flue system, please contact our technical department for calculation to be undertaken. 7.3.7 Modular installations For flue gas-side and air-side connections for multiple boilers in cascade configuration, refer to Broag for advice.
  • Page 37 As most systems contain a variety of metals, it is considered good practice to provide some form of water treatment (especially in open vented systems) in order to prevent or reduce the following. - Metallic corrosion - Formation of scale and sludge - Microbiological contamination - Chemical changes in the untreated system water Suitable chemicals and their use should be discussed with a specialist water treatment...

  • Page 38: Cold Feed And Expansion Tank Height For Open Vented Systems

    Health and Safety Executive publication (latest execution). The Remeha Quinta series boilers require a minimum static head of 3 m. 7.4.4 Safety valve A safety valve should be fitted in accordance with the British Standards. Recommen- ded minimum size of 15 mm (full bore type).

  • Page 39: Waterflow

    + 20. 7.5 DHW production The Remeha Quinta 30 is supplied as standard with an inbuilt DHW control. This control, when used in conjuction with the optional Broag DHW sensor or ther- mostat (not a Broag supply), a 3-way diverting valve or DHW pump, can provide boos- ted primary flow temperature independent of the variable temperature flow for the fully condensing mode.
  • Page 40 (provided there was still a HTG demand. If no HTG demand, the selected pump will run on for a maximum of 5 minutes). A Broag high output indirect calorifier can be connected to the Remeha Quinta 30 in accordance with the schematic sketch shown (see Fig. 11 and Fig. 12).
  • Page 41 Fig. 12 Remeha Quinta with calorifier and DHW pump 04W3HHS00002...

  • Page 42: Electrical Installation

    Remeha Quinta 30 ELECTRICAL INSTALLATION 8.1 General The Remeha Quinta 30 is supplied as standard with electronic control and flame ionisation safety controls with a specially designed microprocessor at the heart of the control system. 8.2 Specifications 8.2.1 Electrical supply The Remeha Quinta 30 must have a permanent 230V-50Hz single phase supply rated at 6.3 Amps.

  • Page 43: Boiler Temperature Control

    ‘reset’-key on the control panel. 8.2.6 Low-water protection (flow and content) The Remeha Quinta 30 is supplied with a low-water protection on the basis of tempe- rature measurement, see Fig. 22, Boiler sensor resistance/temp graph. By modulating back at the moment that the water flow threatens to fall too low, the boiler is kept ope- rating for as long as possible.
  • Page 44 (BMS signal 230V) D.H.W. pump / ( 3-Way valve 230V ) Boiler pump Failure signal Operating signal Fig. 14 Terminal strip Remeha Quinta 30 04.W3H.79.00001 *) remove link to use, see Par. 8.8 Fig. 15 Electronic components 05.W3H.79.00078 1. Screws instrument panel 5.

  • Page 45: Boiler Control

    8.4 Boiler control The Remeha Quinta 30 can be controlled using one of the following methods: 8.4.1 Modulating (two wire control) When using the optional Broag-Remeha compensating controllers the heat output modulates between the minimum and maximum value on the basis of the boiler flow temperature sensor.
  • Page 46 Remeha Quinta 30 Fig. 16 Fitting 2945 C3 K controller 04.W3H.79.00007 1. rematic control ® 2. Earth terminal 3. Terminal strip 4. rematic adapter ® 5. Cable clamp Note: Please refer to the relevant control leaflet for optimising / compensation settings.

  • Page 47: Analog Control (0-10 Volt Dc)

    8.4.2 Analog control (0-10 Volt dc) The heat output modulates between the minimum and the maximum value on the basis of the voltage supplied by an external analog (0 -10V) input (terminal connections 1 (gnd) and 2 (+)). - Temperature based (20 to 90°C) set the x value of the boiler control operation parameter (A) to 4.

  • Page 48: High / Low Control (2 X No Volt Switched Pairs)

    8.5 DHW control (Broag priority) 8.5.1 Temperature control With a Remeha temperature sensor or with a standard (volt free) DHW thermostat connected to terminals 7 and 8. Note: boiler will only provide a setting and read out facility with the sensor option.

  • Page 49: Safety Interlock

    8.9 Safety interlock As standard the boiler is supplied with an interlock carrying a 24 Volt boiler control circuit. To use first remove the fitted wire link (on LH side of terminal block between 10 and 14). Any external devices required to stop the boiler should then be wired in series and connected to terminals 10 and 14.
  • Page 50 Remeha Quinta 30 Fig. 20 Flue gas measure point 05.W3H.79.00066 Correct gas/air setup: 16.1. Connect the flue gas analyser, ensuring the connections are gas tight. 16.2. Run the boiler at full-load by pressing ‘m’- and [+]-keys simultaneously. 16.3. When full-load speed is reached, check values against the table and adjust if necessary using the screw on the venturi (see Fig.
  • Page 51 22. Check system controls. 23. Set system controls to the required values Note: The Remeha Quinta 30 is supplied with a number of factory default settings which should be correct for most installations. If other setting values are required: see...

  • Page 52: Shut-Down

    Remeha Quinta 30 9.2 Shut-down 9.2.1 Temporary shut-down with frost protection - do not isolate the electric power supply - do not close the gas cock. - use the switch function, see Par. 6.1.3. 9.2.2 Permanent shut-down without frost protection...

  • Page 53: Fault Codes

    No, go to point 5. Override external Yes, check boiler Does the boiler start up? controls by fitting a link parameters. If all OK, then across terminals 3 replace control box. and 4 of the boiler No, repeat point 3,or go to terminal strip point 6.
  • Page 54 Remeha Quinta 30 Code Description Cause/check points and remedy - Gas valve shuts but burner surface continues to glow Flame simulation due to incorrect combustion. - Gas valve off but leaking on shut-down - burner flame continuing. Short circuit Check wiring.
  • Page 55 Visual check of ignition/ionisation probes: - if white oxydes show, use sand paper or screwdriver for cleansing - check geometry and distance between both probes, i.e. 3 to 4 mm. Voltage failure after lock out condition – original lock out cause will not be displayed –...
  • Page 56 Flow temperature sensor short circuit sensor failure Return temperature sensor short short circuit Outside temperature sensor short short circuit Remeha Quinta 30 Flow temperature sensor not connected or open circuit Return temperature sensor not connected or open circuit 3& Setting failure...
  • Page 57 To earth clamp in instrument panel To terminal 4 of terminal strip Measuring range V (=) 1V = 1µA Maximum ionisation current 9V ( µA) Minimum ionisation current 4V ( µA) Fig. 23 Ionisation measurement 04.W3H.79.00002...

  • Page 58: Inspection And Servicing Instructions

    11 INSPECTION AND SERVICING INSTRUCTIONS 11.1 General The Remeha Quinta 30 has been designed to need minimum maintenance, but to ensure optimum efficiency we advise that once a year the boiler should be checked and if necessary cleaned and reset.

  • Page 59: Maintenance

    11.3 Maintenance If during the annual inspection combustion results indicate that the boiler is no longer operating at the optimum level, additional maintenance should be carried out as fol- lows: - wash the heat exchanger through using clean warm water. If badly contaminated it may be necessary to use the special cleaning tool (can be supplied as an option).
  • Page 60 Remeha Quinta 30 Broag Ltd Head Office Remeha House, Molly Millars Lane, Wokingham, Berkshire RG41 2QP. Tel.: 0118 9783434 Fax: 0118 9786977 Email: boilers@broag-remeha.com Internet: http://uk.remeha.com Branch Office Unit 3, Kestrel Close, Quarry Hill Ind. Estate, Ilkeston, Derbyshire DE7 4RD...

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