Remeha Quinta 30 Technical information Remeha Quinta 30 • High-efficiency condensing boiler for wall mounted installation • Output: 5.6 - 28 kW 1 57117.
Remeha Quinta 30 TABLE OF CONTENT Preface 5 1 General description of the boiler 6 2 Construction 2.1 Boiler layout 2.2 Operating principle 7 7 8 3 Technical data and dimensions 3.1 Dimensions 3.2 Technical data 3.3 General Specification 9 9 10 11 4 Efficiency information 4.1 Annual efficiency 4.2 Heat to water efficiency 12 12 12 5 Application information 12 6 Control and safety equipment 6.1 The control panel 6.1.1 General 6.1.2 Layout of the control panel 6.1.
6.7 6.8 6.9 7 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 HTG cut in temp (N) 6.6.13 Boiler type (P) 6.6.14 Maximum delay time (U) 6.6.
Remeha Quinta 30 8 Electrical installation 8.1 General 8.2 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) 8.3 External connections 8.4 Boiler control 8.4.1 Modulating (two wire control) 8.4.2 Analog control (0-10 Volt dc) 8.4.3 On / off control (1 x no volt switched pair) 8.4.4 High / low control (2 x no volt switched pairs) 8.
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. Failure to do so may invalidate warranty or prevent the boiler from operating.
Remeha Quinta 30 1 GENERAL DESCRIPTION OF THE BOILER The Remeha Quinta 30 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. All electrical and electronic controls are contained within the instrument panel mounted behind the drop down lower front panel.
2 CONSTRUCTION 2.1 Boiler layout 11 11 12 1 12 1 13 13 14 15 16 2 3 4 3 4 5 6 5 6 7 7 2 1 0 8 bar 3 4 14 15 16 2 17 18 19 2 1 0 8 9 10 9 10 bar 3 4 17 18 20 Fig. 01 Boiler layout Remeha Quinta 30 and boiler layout with optional 3-way valve 04.W3H.79.00003 + 04.W3H.79.00011 Air supply fan.
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.
3 TECHNICAL DATA AND DIMENSIONS 3.1 Dimensions 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 (m) Condensate connection 25 mm Ø o/d (plastic) Combustion air supply connection 125 mm Ø i/d Flue gas connection 80 mm Ø i/d Holes for mounting bracket Hose automatic air vent 8 mm Ø o/d (silicone) 9 57117.
Remeha Quinta 30 3.
Boiler type Electrical Main supply Electric rating without pump (max) Insulation class Table 01 Quinta 30 V/Hz W IP 230 / 50 46 20 Technical data remeha Quinta 30 3.3 General Specification (to be read with above table) - One piece cast aluminium heat exchanger - 22 mm Ø (m) flow and return connections - 15 mm Ø (m) gas connection - Maximum operating pressure of 3.
Remeha Quinta 30 4 EFFICIENCY INFORMATION 4.1 Annual efficiency 108.8% at Hi at an input of 30% and a return temperature of 30°C. 4.2 Heat to water efficiency a. Up to 98% at Hi at an average water temperature of 70°C (80/60°C). b. Up to 108.8% at Hi at an average water temperature of 35°C (40/30°C). Note: NCV = Hi, GCV = Hs 5 APPLICATION INFORMATION The Quinta 30 can be used on all new and re-furbishment projects in both single and multiple configurations.
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 service level: b. t-display Indicates: c. reset-key: d.
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.
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. 6.1.4 Display of values with more than two digits The display has only two digits available therefore values over this are displayed as follows : - negative values will be indicated by a dot behind the last digit e.g.
Remeha Quinta 30 6.2 Flow diagram control system press the ‘m’ -key press the ‘s’-key ‘code’-display Operating mode, see Par. 6.3 only digit or letter 0 - 9,h,l,b Setting mode, user level, see Par. 6.5 Setting mode, service level, see Par. 6.
Read-out mode, see Par. 6.
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 0 Standby: there is no heat demand from control system. 2 Pre-purge: before start-up, the boiler is purged for 3 seconds. Post-purge: when the heat demand has been met, the fan continues to operate for another 10 seconds.
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 B@% b@^ B@* B@( B#) B$# Description Maximum acceptable flow temperature rise exceeded. The boiler will shut off for ten minutes, then restart. Should the flow temperature conditions remain the same after 5 attempts, this code will be recorded as a shutdown failure. Boiler will not lockout.
Remeha Quinta 30 6.5 Setting mode user level (X Code ! @ ) Description Setting range Flow temperature set point 20–90 ºC Pump run on time HTG 00 = pump run on 10 seconds Preset 80 03 01–15= pump run on in minutes # A u DHW temperature set point Boiler control setting Base point internal compensation slope 20–75 °C (only with sensor) 55 Control mode (modulating-on/off etc.) 11 n/a 20 Table 06 Setting mode user level Note: Changing code @ and code A should only be on design engineers advice 6.5.
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. - Press the ‘e’-key to store the new value (value will flash twice). - Press the ‘reset’-key to return to operating mode. NOTE: For continuous pump operation use manual override, see Par. 6.
Remeha Quinta 30 With the ‘code’- display showing A - the t-display will indicate the method of boiler control in the first segment x[and the option to turn the HTG and DHW on or off in the second segment [y.
- While holding both keys pressed, set the t-display to 12, using the [+] or [-]keys and press the ‘e’-key. - The display will flash twice confirming acceptance of the access code. - Release the keys and c12 will dissappear from the display. You are now in the service mode WARNING: changing factory defaults without reference to the tables contained in this manual may result in incorrect operation.
Remeha Quinta 30 L DHW control stop or boiler modu- 00 – 30 °C lation set point (based on parameter #) DHW control option 00 = Three way valve(port A = HTG, port B = DHW) 01 = DHW pump 02 = inverted three way valve (port A = DHW, port B = HTG) Variable speed pump n/a I J 20 00 )3 N HTG cut in ΔT O N/a P Boiler type May not be changed! 74 T Intern May not be changed! 01 U Maximum delay time Q Y _ 1) (= -10°C) – 20 °C 03 10 00 – 99 minutes Start point for 0 Volt analog signal 5) (= -5
6.6.3 Fan speed at full load HTG (^) Adjustable from 20% to 100% output (= 1200 to 5300 rpm), factory default 48 (100%). This value sets the maximum output of the boiler. 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.
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 control stop set point (parameter I) i.e. 55+20 = 75. - The boiler carries out a control stop at a flow temp of 80°C (modulation point + 5°C), the display initally shows 980, reducing to 975. - The DHW cut-in temperature sets the Δt below this control stop.
Parameter L not applicable 6.6.12 HTG cut in temp (N) Adjustable 1) (-10) to 20 °C, factory default 03. This value sets the Δt 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.
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 t Description 1 37 Display of failure code (see Par. 10.2) 2 03 Operating mode during failure 3 53 Flow temperature during failure 4 40 Return temperature during failure 5 60 DHW temperature during failure 6 3& n/a Table 12 Failure mode on service level Example as above: Failure code 37 indicates the return temperature sensor failed during HTG operation (03), at a flow temperature of 53°C, a return temperature of 40°C and DHW temperature of 60°C. 7 INSTALLATION INSTRUCTIONS 7.
Remeha Quinta 30 The following minimum clearances are required: - Front: 600 mm - Sides: 25 mm - Bottom: 250 mm - Top: 400 mm. Fig. 05 Minimum clearances around the boiler 05.W3H.79.00065 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.
Horizontal components in the flue gas discharge system should slope towards the boiler. 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). 7.3.
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 sealed horizontal or vertical terminal unit. Additional ventilation will be required to the room/compartment in accordance with the British Standards (compartment ventilation). For maximum flue/air inlet length, see table in Par. 7.3.5.
7.3.4 Single boiler conventional flue Fig. 07 Flue gas discharge duct without bends, single boiler, conventional flue. 04.W3H.79.00004 max eq. Length L eq. Length bend 45° eq. Length bend 90° m m m Quinta 30 80 mm 40 1.2 4 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.
Remeha Quinta 30 7.3.5 Single boiler, room sealed flue Fig. 08 Flue gas discharge duct without bends, single boiler, room sealed application. 04.W3H.79.00005 + 04.W3H.79.00006 Quinta 30 80/125 mm max eq. Length m 20 eq. Length bend 45° m 1.2 eq. Length bend 90° m 4 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.
7.3.6 Different pressure zones Bird guard Flue outlet Air inlet 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. 09.
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. 7.4 Hydraulic installation 7.4.1 Condensate and AAV discharge Discharge the condensate and AAV relief via a tundish, directly into a drain.
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 company prior to carrying out any work (environmental aspects, health aspects).
Remeha Quinta 30 If water treatment is used, we recommend the following products: ‘Copal®’ manufactured by: Fernox, Cookson Electronics Forsyth Road Sheerwater Woking Surrey GU21 5RZ Tel No: 01483 793200 Fax No: 01483 793201 Email: sales@fernox.com Web site: www.fernox.
7.4.6 System pump The boiler must be installed on a fully pumped system. 7.4.7 Waterflow The Quinta series of boilers have no minimum water flow requirement provided the factory default modulation start point (parameter *) is not raised and the following conditions are met: - the two wire modulating controls are used, - on a pressurised system with the high limit temperature set to flow temperature set point + 20. 7.5 DHW production The Remeha Quinta 30 is supplied as standard with an inbuilt DHW control.
Remeha Quinta 30 The boiler flow temperature is boosted to the DHW set point + DHW control stop set point (see Par. 6.6.7 and 6.6.10). When the DHW sensor or thermostat is satisfied the boiler turns off. The control powers the three way valve from DHW to HTG or turns off the DHW pump and turns on the system pump (provided there was still a HTG demand. If no HTG demand, the selected pump will run on for a maximum of 5 minutes).
Fig. 12 Remeha Quinta with calorifier and DHW pump 04W4HHS00002 41 57117.
Remeha Quinta 30 8 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. The control unit is not phase / neutral sensitive. 8.2.
T002015 Fig. 13 control box T002015 NOTE: Do not use connector X8! 8.2.4 Boiler temperature control The Remeha Quinta 30 has electronic temperature control with flow and return temperature sensors. The flow temperature can be adjusted between 20 and 90°C. 8.2.5 High limit temperature protection The high limit temperature protection device switches off and locks out the boiler when the flow temperature exceeds the high limit set point (adjustable).
Remeha Quinta 30 X11 GND 1 BUS + T 0-10V or modulating controller 1 2 3 4 5 T 6 7 T 8 9 10 11 10 Tmax 14 PWM 12 13 15 16 17 18 19 20 21 22 23 24 BUS T T ON / OFF (1st stage) High / low ( 2nd stage) or outdoor sensor DHW sensor or volt free thermostat Not UK boiler External interlock - volt free Not UK boiler 230V signal to BMS power supply live DHW diverting valve or primary pump Boiler pump or System pump (max.
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. This applies to both single and multiple boiler installations (up to a max of 8), under the dictates of a room and/or outside temperature sensor.
Remeha Quinta 30 2 1 Fig. 16 4 3 5 Fitting 2945 C3 K controller 04.W3H.79.00007 1. rematic® control 2. Earth terminal 3. Terminal strip 4. rematic® adapter 5. Cable clamp Fig. 17 NOTE: Please refer to the relevant control leaflet for optimising / compensation settings. Fitting the interface 05W4H7900008 46 57117.
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. To set the ratio between voltage and the desired flow temperature, see Par. 6.6.15 and the graph below. - Output based - fixed parameters (20 to 100%), see graph below. 0 Volt = boiler off 0.
Remeha Quinta 30 8.4.4 High / low control (2 x no volt switched pairs) The heat output is controlled between part load (20%, adjustable) and full load, by means of a two-stage controller, terminal connections 3 and 4 low fire - 5 and 6 high fire. Set the x value of the boiler control operation parameter (A) to 2. 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.
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. If the contacts of the external interlock have opened during heat demand, the boiler will shut off for 120 seconds (failure code b@^).
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. 21). Full load* Part load Fig. 21 Setting screws 05.W3H.79.
Boiler model Quinta 30 Natural gas Fan speed O2 approx. (rpm) full part % load load 3,9 4800 1200 +/- 0.1 CO2 % 9.5 +/- 0.1 Propane Fan speed O2 approx. (rpm) full part % load load 4.8 4800 1400 +/- 0.1 CO2 % 10.7 +/- 0.1 Table 16 Setting data 16.4. Check the flame via the inspection window. The flame should be stable, mainly blue. 16.5. Run the boiler at part-load by pressing the ‘m’- and [-]-keys simultaneously. 16.6.
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 - Set system controls to off - Isolate the electric power supply - Close the gas cock. 10 FAULT-FINDING 10.1 General (all installations) Check the following, in sequence (by service engineer): Step 1 2 3 Signs Check points Boiler display is blank.
6 Only with rematic® SR 5240 C1 or 2945 C3 K control: Check the communication between control and boiler by means of the two LED’s on the interface, visible through the transparant part of the control panel. LED 1 is not flashing? Interface or control box is faulty LED 2 is not flashing? Interface or control is faulty Both LED’s are flashing? Check the wiring on the terminal strip and on the control box If the wiring is correct, replace the control box.
Remeha Quinta 30 Code Description 0) Flame simulation - Gas valve shuts but burner surface continues to glow due to incorrect combustion. - Gas valve off but leaking on shut-down - burner flame continuing. Short circuit 24V Check wiring. 0! 0@ 0$ 0% Cause/check points and remedy a. No ignition spark, check: - connection of ignition cable and spark plug cap - ignition cable and electrode for insulation breakdown - electrode gap; must be 3-4 mm - earth continuity b.
0* 1! 1* 1( 2$ 2* 2( 3! 3@ Setting failure - check parameter D (second digit must be 0) - short circuit in flat cable: replace flat cable - water/condensation on display - possibly external EMC contamination Check: - the waterflow, ref. Par. 7.4.7. - system for trapped air - sensors for resistance at set temperature, see graph in Fig. 22. - if the boiler is full of water (min. pressure 0.
Remeha Quinta 30 Fig. 22 Sensor resistance graph 56 57117.
To earth clamp in instrument panel To terminal 4 of terminal strip + 11 10 9 8 7 6 5 4 3 2 1 X11 Measuring range 12 V (=) 1V = 1μA Maximum ionisation current 9V ( μA) Minimum ionisation current 4V ( μA) Fig. 23 Ionisation measurement 04.W3H.79.00002 57 57117.
Remeha Quinta 30 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. All service and maintenance must be carried out by a qualified Engineer with the relevant training and certification (ie CORGI - ACOPS - etc.). 11.
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). Compressed air can also be used, but care should be taken to ensure that the disturbed dust etc.
Remeha Quinta 30 Remeha Quinta 30 Broag Ltd. Remeha House Molly Millars Lane RG41 2QP WOKINGHAM, Berks. Tel: +44 118 9783434 © Copyright All technical and technological information contained in these technical instructions, Fax: +44 118 9786977 as well as any drawings and technical descriptions furnisched by us remain our Internet: uk.remeha.com property and may not be multiplied without our prior consent in writing. E-mail: boilers@broag-remeha.
