MCZ SELECTA 15HQ S1 Installation Manual

Pellet boiler

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Installation manual (52 pages)

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INSTALLATION GUIDE

PELLET BOILER

SELECTA 15HQ S1

SELECTA 20HQ S1

SELECTA 25HQ S1

SELECTA 25HQ ACS S1

PART 2 - OPERATION AND CLEANING

Instructions in English

Table of Contents

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Page 1 INSTALLATION GUIDE PELLET BOILER SELECTA 15HQ S1 SELECTA 20HQ S1 SELECTA 25HQ S1 SELECTA 25HQ ACS S1 PART 2 - OPERATION AND CLEANING Instructions in English...
Page 2: Table Of Contents
CONTENTS CONTENTS ........................2 10 - FIRST START-UP ....................3 11 - MENU ITEMS AND FUNCTION .................7 12 - SAFETY DEVICES AND ALARMS ................23 13-RECOMMENDATIONS FOR SAFE USE ...............28 14 - MAINTENANCE AND CLEANING ................29 15 - TROUBLESHOOTING ....................37 16 - ELECTRICAL PLAN ....................40...
Page 3: First Start-Up
10 - FIRST START-UP BEFORE START-UP GENERAL PRECAUTIONS Remove all parts that may burn from the brazier and the product’s tank (manual, various adhesive labels or any polystyrene). The first start-up may not be successful as the feed screw is empty and does not always manage to load the brazier with the required amount of pellets in time to light the flame.
Page 4 10 - FIRST START-UP SETTINGS TO BE CARRIED OUT BEFORE THE INITIAL START-UP After connecting the power cable to the electrical socket, turn the power switch to the (I) position. To turn the boiler on or off, press button 1 on the control panel for a few seconds. Switch-on is signalled on the display by the text ON and the flame icon flashing.
Page 5 10 - FIRST START-UP 6-LOADING THE PELLETS The pellets can be loaded either manually or automatically. The empty tank can contain up to 100 litres or 65 kg of pellets. Manual Loading: • Open the top door “C” of the boiler directly and pour in the pellets. Automatic loading (with remote tank of 200/400 or 300 kg - optional - see accessories): Remove the “V”...
Page 6 10 - FIRST START-UP SAFETY WHAT TO DO IF SMOKE LEAKS INTO THE ROOM OR IN CASE OF EXPLOSION DAMAGING THE DEVICE: SWITCH IT OFF, VENTILATE THE ROOM AND IMMEDIATELY CONTACT THE INSTALLER/TECHNICIAN IN CHARGE OF ASSISTANCE. User Training In ALL cases, the technician in charge of installation and first-start-up MUST carry out a thorough handover of the appliance to the homeowner / end user.
Page 7: Menu Items And Function
11 - MENU ITEMS AND FUNCTION CONTROL PANEL DISPLAY Menu options 1. Switching on/switching off the boiler 5. Decrease set temperature / programming functions. 2. Scrolling down through the programming menu 6. Increase set temperature / programming functions. 3. Menu 7.
Page 8 11 - MENU ITEMS AND FUNCTION 2. PROGRAMMED MODE (TIMER) - Main menu The current time and date must be configured to ensure correct operation of the timer. There are six configurable TIMERS; for each one, the user can select a start and stop time and the days of the week when it is in use. When one or more programs are active, the status of the boiler and the TIMER “n”...
Page 9 11 - MENU ITEMS AND FUNCTION NOTES ON USE OF THE TIMER • The timer always starts the boiler with the last temperature and ventilation settings (or with the default settings at 20°C and V3 if they have never been altered). •...
Page 10 11 - MENU ITEMS AND FUNCTION 4. SETTINGS MENU The SETTINGS menu is for configuring use of the boiler: a. Language. b. ADAPTIVE mode c. Cleaning (shown only when boiler is off). d. Feed screw loading (shown only when boiler is off). e.
Page 11 11 - MENU ITEMS AND FUNCTION • Press the “menu” key. • Use the arrow keys to scroll through and select “Settings” • Press “menu” to confirm. • Use the arrow keys to scroll through and select ‘’Cleaning’’ • Press “menu” to confirm. •...
Page 12 11 - MENU ITEMS AND FUNCTION g - Auto-Eco activation To select the Auto-Eco function, proceed as follows: • Press the “menu” key. • Use the arrow keys to scroll through and select “Settings” • Press “menu” to confirm. • Scroll with the arrows and select “Auto-Eco”.
Page 13 11 - MENU ITEMS AND FUNCTION • Press “menu” to confirm. • Scroll with the arrows and select “T Pump On”. • Press “menu” to confirm. • Use the + - keys to change the °C. • Press ‘’menu’’ to confirm and ‘’ e sc’’ to exit. j - Auxiliary boiler An additional module (optional) must be installed to allow the start-up of an auxiliary boiler when the main boiler is off or has been stopped due to an alarm.
Page 14 11 - MENU ITEMS AND FUNCTION • Press “menu” to confirm. • Alter the % with the + - keys. • Press ‘’menu’’ to confirm and ‘’ e sc’’ to exit. Attention! The parameters that can be set with this menu substantially modify operation of the boiler. These settings allow you to improve operation of the boiler based on the pellets used, but, if set incorrectly, it could endanger safety.
Page 15 11 - MENU ITEMS AND FUNCTION • Use the arrow keys to scroll through and select “Settings” • Press “menu” to confirm. • Use the arrow keys to scroll through and select ‘’Test Performance function’’ • Press “menu” to confirm. •...
Page 16 11 - MENU ITEMS AND FUNCTION 5. INFO MENU The INFO menu gives you information on the status of the boiler. The entries are: • Product type • Parameter type • Firmware Version • SW (time and date) • Total hours of operation •...
Page 17 11 - MENU ITEMS AND FUNCTION SYSTEM CONFIGURATIONS At the time of installation, the product must be configured according to the type of system by selecting the relative parameter in the “SETTINGS” menu. There are 5 possible configurations, described below: Configuration Description Room temperature control via boiler's on-board probe or by enabling external thermostat FACTORY SETTING...
Page 18 11 - MENU ITEMS AND FUNCTION CONFIGURATION 2 CONFIGURATION 3...
Page 20 11 - MENU ITEMS AND FUNCTION CONFIGURATION 5 SELECTA 15/20/25HQ HEATING DELIVERY HEATING RETURN ZONE VALVE HEATING BODIES HOT SANITARY WATER DOMESTIC COLD WATER SANITARY WATER BOILER DIVERTER VALVE BOILER THERMOSTAT THERMOSTATIC MIXER VALVE NTC PROBE 10 kΩ β3434 SANITARY WATER HEATING PUFFER HEATING SYSTEM CIRCULATOR PUFFER THERMOSTAT...
Page 21 11 - MENU ITEMS AND FUNCTION OPERATING MODE The operating mode for boilers is always AUTOMATIC (there is no manual operating mode available). Flame regulation is controlled according to the “System configuration” by the environment probe, by the external thermostat, by the temperature of the water in the boiler or by the NTC probes.
Page 22 11 - MENU ITEMS AND FUNCTION START-UP Press key 1 (esc) to start up the appliance. The display will show ON with the flashing flame symbol. When the flame stops blinking, the boiler has reached the operating condition for “supplying power”. The default target room temperature is set at 20°C.
Page 23: Safety Devices And Alarms
12 - SAFETY DEVICES AND ALARMS SAFETY DEVICES The product is fitted with the following safety devices PRESSURE SWITCH Monitors pressure in the smoke duct. It is designed to shut down the pellet feed screw in the event of an obstructed flue or significant back-pressure (from the wind).
Page 24 12 - SAFETY DEVICES AND ALARMS TAMPERING WITH THE SAFETY DEVICES IS PROHIBITED If the product is NOT used as described in this instruction manual, the manufacturer declines all liability for any damage caused to persons and property. In particular: •...
Page 25 12 - SAFETY DEVICES AND ALARMS ALARM SIGNALLING When a condition occurs other than the one expected for regular operation of the boiler, an alarm is triggered. The reason for the alarm is given on the control panel. The sound signal is not enabled for alarms A01-A02 in order not to disturb the user when there is an absence of pellets in the night tank.
Page 26 12 - SAFETY DEVICES AND ALARMS ALARM A05 TRIGGERED A bracket “s” is fastened below the door of the firebox “E” preventing the lower door “J” from opening if the firebox door “E” is closed. The firebox door “E” has a control device that blocks operation of the boiler if the door remains open. The alarm A05 is activated.
Page 27 12 - SAFETY DEVICES AND ALARMS ALARM RESET NEVER open the stove door whilst it is either in the initial start-up or on its shut down cycle, pellets will still be smoldering or therefore volatiles may be present. ATTENTION! If during operation or initial ignition you encounter combustion smoke spillage in to the room from the appliance or the flue then please switch off the appliance, ventilate the room and contact the installation / service technician immediately.
Page 28: 13-Recommendations For Safe Use
13-RECOMMENDATIONS FOR SAFE USE ONLY CORRECT INSTALLATION AND APPROPRIATE MAINTENANCE AND CLEANING OF THE APPLIANCE CAN GUARANTEE CORRECT OPERATION AND SAFE USE OF THE PRODUCT We would like to inform you that we are aware of cases of malfunctioning of domestic pellet-fuelled heating products, mainly due to incorrect installation and inappropriate maintenance.
Page 29: Maintenance And Cleaning
14 - MAINTENANCE AND CLEANING Disconnect the product from the 230V power supply before performing any maintenance operations. DAILY OR WEEKLY CLEANING PERFORMED BY THE USER If the pellets in the tank run out, unburned pellets may accumulate in the brazier. Check the status of your brazier every 15 days.
Page 30 14 - MAINTENANCE AND CLEANING CLEANING THE ASH PAN You must remove the ash pan “M” of the boiler and empty the ash at least every two weeks. To do so you must open the door of the boiler, open the lower door “J”, remove the ash pan “M” and empty it. Wipe away any ash residue and reinsert the pan. Vacuum also the lower compartment.
Page 31 14 - MAINTENANCE AND CLEANING CLEAN THE EXCHANGER AND THE COMPARTMENT BENEATH THE BRAZIER EVERY 2/3 DAYS Cleaning the exchanger and the compartment beneath the brazier is a simple operation but very important if the boiler is to maintain optimal performance. We therefore recommend cleaning the internal exchanger every 2-3 days, performing these simple operations in sequence: •...
Page 32 14 - MAINTENANCE AND CLEANING PERIODIC CLEANING PERFORMED BY A QUALIFIED TECHNICIAN CLEANING THE EXCHANGER AND PIPE UNIT CLEANING THE UPPER COMPARTMENT When the boiler has cooled down lift the front cover; undo the two screws “I” on the cover “H”. Remove the two screws “L” and take off the cover “H”...
Page 33 14 - MAINTENANCE AND CLEANING CLEANING THE SMOKE EXTRACTOR COMPARTMENT In the area behind ash pan “M”, there is the smoke cap “E”, which must be removed to clean the smoke extractor. Therefore: • loosen the screws “s” • remove cap “E” Now, use the nozzle of a vacuum cleaner, remove any ash and soot that may have built up in the lower exchanger indicated by the arrow.
Page 34 14 - MAINTENANCE AND CLEANING CLEANING THE SMOKE EXPULSION SYSTEM AND GENERAL CHECKS Clean the smoke outlet system, especially around the “T” joints, elbows and any horizontal sections of the smoke duct. For information on periodically cleaning the flue, contact a skilled chimney sweep. If necessary, order new replacement gaskets from the retailer or contact an authorised service centre to carry out the operation.
Page 35 14 - MAINTENANCE AND CLEANING REPLACING THE OVERPRESSURE DISCHARGE FOR THE COMBUSTION CHAMBER Overpressure rubber bushing “G” of the combustion chamber (fig. A) may get worn and/or damaged, it is therefore necessary to replace it once a year to ensure correct system operation. To replace it, follow the instructions below •...
Page 36 14 - MAINTENANCE AND CLEANING CHECKING THE INTERNAL COMPONENTS ATTENTION! The internal electromechanical components must only be checked by qualified personnel whose technical expertise includes combustion and electricity. We recommend that an annual maintenance service is carried out (with a scheduled service contract). This service is essentially a visual and functional inspection of the internal components.
Page 37: Troubleshooting
15 - TROUBLESHOOTING CHECKING THE INTERNAL COMPONENTS ATTENTION: GUIDE FOR THE USE OF THE SPECIALISED TECHNICIAN ONLY ATTENTION: All repairs must be carried out exclusively by a specialised technician, while the boiler is completely cold and the electric plug is disconnected. The operations in bold type must be carried out by specialised personnel. The manufacturer will not be liable and the guarantee is invalidated if this condition is not respected.
Page 38 15 - TROUBLESHOOTING ANOMALY POSSIBLE CAUSES SOLUTIONS The boiler runs for a few minutes and Start-up phase is not completed Repeat start-up then goes out. Temporary power cut Wait for the automatic restart Clogged smoke duct Clean the smoke duct Faulty or malfunctioning temperature Check and replace the probes probes...
Page 39 15 - TROUBLESHOOTING The stove does not run No power supply Check that the plug is inserted and the main switch is in the “I” position. Pellet probe stop Cancel stoppage by changing the setting of the rear thermostat. If the problem persists, request assistance.
Page 40: Electrical Plan
16 - ELECTRICAL PLAN MOTHERBOARD WIRING KEY FUSE 14. 3-WAY VALVE PHASE (DHW) BOARD PHASE 15. 3-WAY VALVE PHASE (HEATING) BOARD NEUTRAL 16. AUXILIARY BOILER CONNECTION (TERMINAL BLOCK) SMOKE EXTRACTOR 17. SMOKE PROBE ---------------------- 18. EXTERNAL THERMOSTAT CONNECTION (TERMINAL BLOCK) WATER SAFETY THERMOSTAT 19.
Page 44 Via La Croce n°8 33074 Vigonovo di Fontanafredda (PN) – ITALY Telephone: 0434/599599 a.s. Fax: 0434/599598 Internet: www.mcz.it e-mail: info.red@mcz.it 8902106500 REV. 0 25/02/2021...

This manual is also suitable for:

Selecta 20hq s1 Selecta 25hq s1 Selecta 25hq acs s1