REMEHA Quinta 85 Technical Information
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REMEHA Quinta 85 Technical Information

High-efficiency condensing boiler for wall mounted installation output: 14 - 90 kw
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Remeha Quinta 85

• High-efficiency
condensing boiler for wall
mounted installation
• Output: 14 - 90 kW

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Summary of Contents for REMEHA Quinta 85

  • Page 1: Technical Information

    Technical information Remeha Quinta 85 • High-efficiency condensing boiler for wall mounted installation • Output: 14 - 90 kW...

  • Page 2: Table Of Contents

    Remeha Quinta 85 TABLE OF CONTENT Preface General description of the boiler Construction Boiler layout Operating principle Technical data and dimensions Dimensions Technical data General Specification Options Efficiency information Annual efficiency Heat to water efficiency Application information Control and safety equipment The control panel 6.1.1 General...

  • Page 3: Dhw Temperature Set Point

    Setting mode service level (X00) 6.6.1 Flow temperature set point during forced part load ($) 6.6.2 High limit thermostat (%) 6.6.3 Fan speed at full load HTG (^) 6.6.4 Fan speed at part load (HTG and DHW - &) 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)
  • Page 4 Remeha Quinta 85 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 Analog control (0 -10 Volt dc)

  • 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 85. 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 85 GENERAL DESCRIPTION OF THE BOILER The Remeha Quinta 85 is a wall hung condensing boiler which may be also installed 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 85 Automatic air vent Control panel Air supply fan 10. Facility for incorporating a rematic ® Gas combi-block (with governor) weather compensated boiler control Gas injector/venturi 11. Heat exchanger inspection cover Cast aluminium heat exchanger 12.

  • Page 8: Operating Principle

    Remeha Quinta 85 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

    TECHNICAL DATA AND DIMENSIONS 3.1 Dimensions Fig. 02 Dimensions Remeha Quinta 85 00.W4H.79.00048 + 05.W4H.79.00024 Ê Return connection 1¼” BSP (m) É Flow connection 1¼” BSP (m) Ï Gas connection ¾” BSP (m) Ò Condensate connection 25 mm Ø o/d (plastic) Ñ...

  • Page 10: Technical Data

    Remeha Quinta 85 3.2 Technical data Boiler type Quinta 85 General Colour side and front casing BS RAL 9016 Colour instrument panel flap 7036 Boiler control options (External input) On/off, High/low, Analog (Two wire control) 0 -10V Communicating Modulation Nominal output (80/60ºC) 14.1 - 84.2...

  • Page 11: General Specification

    230 / 50 Electric rating without pump (max) 30 - 160 Insulation class Table 01 Technical data Remeha Quinta 85 *) DIN 4702, part 8 3.3 General Specification (to be read with above table) - One piece cast aluminium heat exchanger.

  • Page 12: Options

    , GCV = H APPLICATION INFORMATION The Quinta 85 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: Control And Safety Equipment

    For security the control has three levels of access: - User level - free access - Service level - access with service code by qualified personnel - Factory level - access by PC with factory code (Remeha only) 6.1.2 Layout of the control panel Fig. 03 Control panel 00.W4H.79.00044...

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

    Remeha Quinta 85 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 speed mode: alternate half digit <...

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

    ‘s‘-key and r-symbol: - (symbol) not illuminated: HTG under normal control - red (symbol) on: HTG off (manual override) ‘e’-key and k-symbol: - (symbol) not illuminated: DHW under normal control - red (symbol) on: DHW off (manual override) [+]-key and q-symbol: - green (symbol) on: continuous pump operation - (symbol) not illuminated: pump under boiler control [-]-key and h-symbol:...

  • Page 16: Flow Diagram Control System

    Remeha Quinta 85 6.2 Flow diagram control system press the ‘m’ -key press the ‘s’-key ‘code’-display tdisplay Operating mode, only digit or letter see Par. 6.3 0 - 9,h,l,b Flow temperature or shut-off code Setting mode, digit or letter with user level, see Par.
  • Page 17 Forced part load time after start (HTG) Fan speed at start DHW control stop or boiler modulation set point (based on parameter #) DHW control mode HTG cut in ∆T (based on return) Boiler type intern Maximum delay time Start point for 0 Volt analog signal End point for 10 Volt analog signal intern Read-out mode,...

  • Page 18: Operating Mode (X

    Remeha Quinta 85 Speed mode, alternate half Fan speed digit < see Par. 6.8 Failure mode, flashing digit see Par. 6.9 Failure code Operating code during failure Flow temperature during failure Return temperature during failure DHW temperature during failure Table 03 Flow diagram control system 6.3 Operating mode (x[[)

  • Page 19: Shut-Off Mode (Bxx)

    Shut-off mode Forced full load. Forced part load. Table 04 Operating codes 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.

  • Page 20: Setting Mode User Level (X

    Remeha Quinta 85 NOTE: Shut-off mode is a normal boiler operating function and does not represent a boiler failure. However, this may indicate a system problem, an internal boiler check or an incorrect parameter setting. 6.5 Setting mode user level (X[[)

  • Page 21: Flow Temperature Set Point (!)

    6.5.1 Flow temperature set point (!) The required flow temperature is adjustable from 20 to 90°C (factory default 80°C). Fig. 04 Typical setting change procedure 6.5.2 Pump run on time HTG (@) Pump run on time can be adjusted (Please refer to installation contractor) - Press the ‘m’...

  • Page 22: Boiler Control Setting (A)

    Remeha Quinta 85 6.5.3 DHW temperature set point (3) The DHW temperature is adjustable from 20 to 75°C (factory default 55°C). Only with Broag DHW priority sensor. - Press the ‘m’ -key until the digit ! (with dot) appears in the ‘code’-display.

  • Page 23: Setting Mode Service Level (X00)

    Description t-display Operation mode Second segment [y HTG and DHW off HTG and DHW on HTG on and DHW off HTG off and DHW on Table 08 Boiler control option * NOTE: Booster function n/a in UK 6.6 Setting mode service level (X00) (only for the qualified service engineer) To prevent accidental, unauthorised access by non-qualified persons the control system requires an input code to gain access to the second level of boiler control.
  • Page 24 Remeha Quinta 85 Modulation start point ∆T (F/R) 05 - 30 ºC Interface selection (control 00 internal option) (Chronotherm control only) 01 external interface DHW cut-in ∆T 10 – 05 read 1 - 5 °C 06 read 10 °C 07 read 15 °C 08 read 20 °C...

  • Page 25: Flow Temperature Set Point During Forced Part Load ($)

    Start point for 0 Volt analog 5) (= -50) – 50 °C signal End point for 10 Volt analog 50 – (( (=299) °C signal (=100)* Intern Table 09 Settings service level *NOTE: see Par. 6.1.4 for values over two digits 6.6.1 Flow temperature set point during forced part load ($) Adjustable from 20 to 90°C, factory default 80°C This value will prevent the flow temperature exceeding this temperature during the part...

  • Page 26: Interface Selection (()

    Remeha Quinta 85 6.6.6 Interface selection (() Adjustable 00 or 01, factory default 01 This value sets the control option. 01 for standard 0 -10 Volt external control and rematic series of compensators ® (if fitted). 00 for the Honeywell Chronotherm option.

  • Page 27: Dhw Control Stop Set Point (I)

    NOTE: When using an external analog (0 -10 V) or 2 wire modulation input, the factory default 03should be changed to 00. Parameter H factory set must not be changed 6.6.10 DHW control stop set point (I) Adjustable from 00 - 30 °C factory default 20°C. Refer to Par.

  • Page 28: Start And End Point Analog Signal (Q And Y)

    Remeha Quinta 85 6.6.15 Start and end point analog signal (Q and Y) Start point (0 Volt): adjustable between 5) (-50)°C and +50°C, factory default 00°C. This value sets the required flow temp at 0 Volt signal input (restricted by the min flow set point).

  • Page 29: Fan Speed Mode (<00)

    6.8 Fan speed mode (<00) Using the ‘m’ -key, press repeatedly until ‘code’-display shows alternate flashing half digits. The value in the t-display shows the actual fan speed using two alternate double digits as table: Code Description Example 5250 r/m Fan speed 52 hundreds Fan speed...

  • Page 30: Installation Instructions

    Important: The Remeha Quinta 85 is a CE certified appliance and must not therefore be modified or installed in any way contrary to these “Installation and Maintenance Instructions”. These manufactures Instructions must NOT be taken as overriding statutory obligations.

  • Page 31: Flue Gas Discharge And Air Supply

    7.3 Flue gas discharge and air supply 7.3.1 General The Remeha Quinta 85 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 32: Classification Due To Discharging Flue Gases

    Remeha Quinta 85 7.3.2 Classification due to discharging flue gases Classification according to CE: Type B23: Conventional room ventilated boiler without draft diverter. Air supply from boiler room: flue gas discharge on roof. Type C13: Room sealed boiler, connected to combined wall outlet.

  • Page 33: Material And Installation

    7.3.3 Material and installation Flue gas discharge: Rigid single walled: stainless steel (316), aluminium or plastic (to comply with building regulations). Flexible: stainless steel (316). Construction: all joints and seams should be gastight and watertight with the horizontal runs graded towards the boiler to allow condensate free drainage to the boiler. Horizontal lenghts in excess of 4M should incorporate a condensate drain.

  • Page 34: Single Boiler, Room Sealed Flue

    Length bend 90° Table 13 Calculation data conventional flue Example: Quinta 85, total length 15 m, 2 bends 45°. 15 m + 2 x 1.4 = 17.8 < 24: 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

    Length bend 90° Table 14 Calculation data room sealed applications Example: Quinta 85, total length 3 m, 2 bends 45°. 3 m + 2 x 1 = 5 m < 13 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 36: Modular Installations

    Remeha Quinta 85 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 37: Water Treatment

    7.4.2 Water treatment The system should be filled with mains cold water (for the UK this will usually have a pH of between 7 and 8). Pressurised installations with a boiler/system content ratio of 1:10 or less should not require water treatment, provided that the following conditions apply: - The system is flushed thoroughly to remove all fluxes and debris and filled completely once.

  • 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.

  • Page 39: Gas Connection

    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 85 in accordance with the schematic sketch shown (see Fig. 10).
  • Page 40 Remeha Quinta 85 Fig. 10 Remeha Quinta with calorifier and DHW pump 04.W4H.HS.00002 Flow and return header installation A flow and return header installation is shown in Fig. 11. The separated hydraulic groupes have system pumps, controlled by a rematic -controller for example.
  • Page 41 Fig. 11 A flow and return header installation with rematic -controller ® 05.W4H.HS.00010...

  • Page 42: Electrical Installation

    Remeha Quinta 85 ELECTRICAL INSTALLATION 8.1 General The Remeha Quinta 85 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 85 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 85 is supplied with a low-water protection on the basis of temperature measurement, see Fig. 21, Boiler sensor resistance/temp graph. By modulating back at the moment that the water flow threatens to fall too low, the boiler is kept operating for as long as possible.

  • Page 44: Boiler Control

    6. Print for common alarm and boiler run indication 7. 230 V power suppply 8.4 Boiler control The Remeha Quinta 85 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 45 - SR 5240 C1 - Optimising / weather-compensated boiler control for single boiler. These controls are supplied with outside sensor and mounting kit for installation in the boiler. Communication between the Optimising / weather-compensated control and the boiler control system is via an interface PCB supplied with the kit (to fit see Fig. 16). Connection via a two-core cable and plug supplied to plug K2 in the boiler.

  • Page 46: Analog Control (0 -10 Volt Dc)

    Remeha Quinta 85 Fig. 16 Fitting the interface 05.W4H.79.00008 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, volt free) input (terminal connections 1 (gnd) and 2 (+)).

  • Page 47: On / Off Control (1 X No Volt Switched Pair)

    On Input voltage Fig. 17 Ratio between voltage and temperature On Input voltage Fig. 18 Ratio between voltage and output 8.4.3 On / off control (1 x no volt switched pair) The heat output modulates between the minimum and the maximum value based on the set flow temperature, terminal connections 3 and 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. If the cable from the boiler sensor ior -thermostat is exceeds 3 meters, we advise you to use our EMC-filter (Broag supply).

  • 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 RH 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: Commissioning

    Remeha Quinta 85 COMMISSIONING NOTE: The boiler is suitable for both natural gas and propane firing. It is supplied as standard set for natural gas. For propane firing please contact Broag. 9.1 Initial lighting 1. Isolate main power supply. 2. Pull the grey instrument panel cover towards you.
  • Page 51 ß full-load setting screw Þ part-load setting screw Fig. 20 Setting screws 00.W4H.79.00005 Boiler Natural gas model Fan speed (approx. rpm) full part load load Quinta 85 6250 1250 +/- 0.1 +/- 0.1 Table 16 Setting data (with open air case)

  • Page 52: Shut-Down

    Check system controls. Set system controls to the required values NOTE: The Remeha Quinta 85 is supplied with a number of factory default settings which should be correct for most installations. If other setting values are required: see Par. 6.5 and 6.6.

  • Page 53: Fault-Finding

    10 FAULT-FINDING 10.1 General (all installations) Check the following, in sequence (by service engineer): Step Signs Check points Actions Boiler display is blank. The mains voltage 230 V Replace fuse if necessary, but check The fuse in the euro- what circuit it was connector protecting and rectify if The control box fuses...

  • Page 54: Fault Codes

    Remeha Quinta 85 Only with rematic LED 1 is not flashing? Interface or control box ® SR 5240 C1 or 2945 is faulty C3 K control: Check LED 2 is not flashing? Interface or control is the communication faulty between control and Both LED’s are flashing?
  • Page 55 Code Description Cause/check points and remedy Flame - Gas valve shuts but burner surface continues to glow simulation due to incorrect combustion. - Gas valve off but leaking on shut-down - burner flame continuing. Short circuit 24V Check wiring. No flame or no a.
  • Page 56 Remeha Quinta 85 Setting failure - check parameter D (second digit must be 0) Failure of - short circuit in flat cable: replace flat cable internal - water/condensation on display communication - possibly external EMC contamination Flow Check: temperature - the waterflow, ref. Par. 7.4.7.
  • Page 57 Fig. 21 Sensor resistance graph...
  • Page 58 Remeha Quinta 85 Fig. 22 Ionisation measurement 04.W4H.79.00007...

  • Page 59: General

    (ie CORGI - ACOPS - etc.). 11.2 Annual Inspection The annual inspection (or after 1600 hours run) of the Remeha Quinta 85 as follows: - Check combustion characteristics, see Table 16. - Clean the condensate siphon (refill with clean water).

  • Page 60: Maintenance

    Remeha Quinta 85 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 follows: - 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 61 Broag Ltd. Remeha House Molly Millars Lane RG41 2QP WOKINGHAM, Berks. United Kingdom Tel.: *44 118 9783434 Fax: *44 118 9786977 Internet: uk.remeha.com © Copyright E-mail: boilers@broag-remeha.com All technical and technological information contained in these technical instructions, as well as any drawings and technical descriptions furnisched by us remain our property and may not be multiplied without our prior consent in writing.

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