Table of Contents
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Table of Contents
Troubleshooting
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Summary of Contents for Arca Caldaie ASPIRO A 29 R/SA
- Page 1 ASPIRO Installation Operation Maintenance www.arcacaldaie.com...
- Page 3 The company ARCA s.r.l. will not be liable for any mistake or inaccuracy of translation and printing. In the future, company ARCA reserves the right to apply modifications to its range of products should they be useful or necessary. The present documentation is also available as PDF files. Please fell free to contact our technical department to get the files.
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Page 4: Table Of Contents
INDEX 1. GENERAL PRESCRIPTIONS ........................6 2. TECHNICAL CHARACTERISTICS AND OVERALL DIMENSIONS ...............7 3. GASIFICATION TECHNOLOGY ........................8 4. MAIN BOILER COMPONENTS........................8 4.1. WOOD CHARGING CHAMBER ..........................8 4.2. MAIN BURNER REFRACTORY CEMENT FRAME AND BARS................. 8 4.3. HEAT EXCHANGE AREA AND CATALYST ELEMENTS ..................8 4.4. - Page 5 11. “N” ZONES SYSTEMS CONNECTIONS......................29 12. FIRING AND STOPPING ..........................29 12.1. FIRING..................................29 12.2. FIRING CYCLE STARTING............................30 12.3. FUEL CHARGING ..............................30 12.4. COMBUSTION AIR ADJUSTING ..........................30 12.5. WARNINGS ................................31 13. MAINTENANCE AND CLEANING........................31 13.1. DAILY CLEANING ..............................31 13.2.
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Page 6: General Prescriptions
GENERAL WARNINGS The instruction manual is an integral part of the product and is shipped along with it to the customer. Carefully read any warning reported in this manual because they provide important informations concerning safe operation, correct installation and use. Carefully store in a safe place this manual for any future needing. The installation must be carried out only by qualified personnel or by an authorized ARCA technical center following the producer’s recommendations and guidelines. -
Page 7: Technical Characteristics And Overall Dimensions
2. TECHNICAL CHARACTERISTICS AND OVERALL DIMENSIONS Key: Primary air stream adjusting Heating circuit delivery Secondary air stream adjusting Heating circuit return Flame control bull's eye Boiler water descharging Sanitary hot water heat exchanger connections Bottom door (combustion chamber) (only SA version) Upper door (wood chamber) Security heat exchanger connections Combustion air modulator... -
Page 8: Gasification Technology
GASIFICATION TECHNOLOGY Boiler ASPIRO operation is based upon the gasification technology applied to wood. The solid fuel, stored in the upper collection chamber in contact with hot ashes in its bottom part, on the burner’s grate, releases combustible gazes which may be fired when mixed with the main air stream. This flammable compound is sucked through the slot existing in the bottom part of the wood collection chamber, where it will light “reverse flame”. -
Page 9: Smoke Drafting Pass-Through Chamber And Fan
4.4. SMOKE DRAFTING PASS-THROUGH CHAMBER AND FAN The gazes resulting from the combustion process, after being released their heat charge to the water, are collected in the smoke pass-through chamber located in the rear part of the boiler. In the smoke chamber has place the drafting fan with horizontal axle arrangement, realized with an electric motor and the impeller. -
Page 10: Installation
INSTALLATION The ASPIRO boiler does not feature any difference from an ordinary solid fuel boiler; therefore, no other installation prescriptions than what stated by the regulations in force is applicable. The installation room has to be equipped with venting openings having a total surface not less than 0,5 m . -
Page 11: System Expansion Tank
5.3. EXPANSION TANK According to the regulations in force in Italy, any heating appliance with solid fuels must be equipped with open expansion tanks. 5.4. FLUE DUCT The flue duct is very important for the proper operation of the boiler; it must be seal and thermal insulated. Old or new flue ducts, built without respecting the above prescriptions, can be reused introducing a metal duct in the interior. -
Page 12: Emergency Heatsink Relief Valve Connection
5.5. THERMAL RELIEF VALVE CONNECTION Key: Boiler water descharging EMERGENCY HEAT EXCHANGER Probes receptacles S4 Probe receptacles S5 Connect the heatsink relief valve to one of the two A5 connections. Connect cold water supply to the heatsink relief valve. Connect the free A5 fitting (hot water waste) to an exhaust duct. Insert the heat relief valve temperature sensing bulb in the free A6 receptacle. -
Page 13: Electronic Panel, Release 2007
ELECTRONIC PANEL, RELEASE 2007 The electronic panel equipped with the TERMODUE control board is designed to control all the wood fueled ARCA boilers. Key: Main switch (with green telltale) Controls and functions keyboard Security thermostat “E” button for parameters and temperature settings Reset button Automatic/Manual operation button Green indicator;... -
Page 14: Schematic Diagram And Electronic Board Wiring
6.4. SCHEMATIC DIAGRAM AND ELECTRONIC BOARD WIRING Key: Main switch Solar panels temperature probe Green telltale Puffer low temperature probe 220/12 V AC transformer Puffer high temperature probe Room thermostat Heating system delivery temperature probe Fuse Heating system return temperature probe Door microswitch Bypass pump Solar panels pump... -
Page 15: Temperature Probes Electrical Connections
6.5. PROBES CONNECTION NOTE: to avoid erratic temperature displaying, if the probe connection cable is near to other power cables or longer than 3 mt, it is necessary to use shielded cable. The following drawings show how the hot terminal of each probe must be connected to the odd board terminal while the shield must be connected to the even board terminal. -
Page 16: Temperature Displaying, Parameters Changing Or Setting
TEMPERATURE DISPLAYING AND PARAMETERS CHANGING OR SETTING Displaying procedure: Step 1: You can browse the various options using the arrow buttons on the panel. Setting procedure: Step 1: To enter the functional parameters setting procedure press and hold the button for about 15'' until PROG>... -
Page 17: Boiler And Accesories Functional Settings (Function Parameter #2)
7.2. BOILER AND ACCESORIES SETTINGS (FUNCTION PARAMETER #2) This parameter sets the electronic board for each of the three different operation modes (“HEATING ONLY”, “HEATING AND HOT SANITARY WATER PRODUCTION WITH SINGLE OR DOUBLE COIL HEAT EXCHANGE ARRANGEMENT”, “HEATING AND PUFFER TANK MANAGEMENT”). The functional settings follow the same logic of the “Function parameter #1”. -
Page 18: Boiler Parameters Setting "Heating Only Operation
BOILER PARAMETERS SETTING “HEATING ONLY MODE” FUNCTIONAL PARAMETERS Parameter description Recommended values Boiler operating temperature 80°C Boiler minimum temperature 65°C Maximum boiler temperature in thermal inertial 88°C phase Minimum hot water tank temperature 45°C Maximum hot water tank temperature 65°C Temperature differential in heating mode 2.0°C Temperature differential in hot water preparing mode... -
Page 19: Hydraulic Connections
8. Boiler body maximum temperature differential: If the system delivery temperature is more than that of return by a difference more than the value set by this parameter, the bypass pump will be started to balance the temperature difference between the boiler highest and lowest point. 9. -
Page 20: General Connection Diagram For Heating Only Operation With Mixing Valve
8.3.2. GENERAL CONNECTION DIAGRAM FOR HEATING ONLY OPERATION WITH MIXING VALVE Key: System pump Mixing valve Bypass pump Heating system delivery temperature probe Heating system Heating system return temperature probe Non return valve 8.3.3. GENERAL CONNECTION DIAGRAM FOR HEATING ONLY OPERATION WITH OPEN EXPANSION TANK/CLOSED EXPANSION TANK Key: System pump... -
Page 21: Heating And Hot Water Production With Internal Heat Exchanger
HEATING AND HOT WATER PRODUCTION WITH INTERNAL HEAT EXCHANGER The boiler, when used in combo mode (heating and hot sanitary water production) with an external coil type hot water tank, will follow the general schematic diagrams 9.3.1. – 9.3.2. and all the pumps (system pump, external tank pump, bypass pump and solar panels circuit pump) will be automatically controlled. -
Page 22: External Tank
9.1. PARAMETERS SETTING “HEATING AND HOT WATER PRODUCTION BY MEANS OF AN EXTERNAL TANK” FUNCTIONAL PARAMETERS TO BE SET RECOMMENDED Setting Parameter description Boiler operating temperature 80°C Boiler minimum temperature 65°C Maximum boiler temperature in thermal inertial 88°C phase Minimum hot water tank temperature 45°C Maximum hot water tank temperature 65°C... -
Page 23: Hidraulic Connections
6. Temperature differential in external hot water tank heating mode: sets the hot water temperature differential between the S4 boiler temperature probe and the S3 tank temperature probe. NOTE: the hot water tank pump is started when the “Minimum boiler temperature” is reached. Furthermore, the hot water preparation cycle starts when the temperature differential between the S4 high point boiler probe and the S3 tank temperature probe reaches the “Temperature differential in hot water preparation mode”. -
Page 24: General Connection Diagram For A Boiler With External Hot Water Production Tank And Solar Panels
9.3.1. GENERAL CONNECTION DIAGRAM FOR A BOILER WITH EXTERNAL HOT WATER PRODUCTION TANK AND SOLAR PANELS Key: System pump Solar panel system probe Bypass pump Hot water tank probe - low point Hot water tank circuit pump Hot water tank probe - high point Solar panel system pump Heating system delivery temperature probe Heating system... -
Page 25: Boiler Operation With Puffer Or Puffer Combi
BOILER OPERATION WITH "PUFFER" OR COMBO PUFFER When the boiler is used with an external “puffer” (heat accumulator tank) or “combo puffer” configuration, one must follow the reference connection diagrams 10.3.1 – 10.3.2 and the heating system pump;, the operation of the bypass and solar panels circuit pump and the solar panels circuit pump will be automatically controlled. -
Page 26: Parameters Setting "Operation With Puffer Or Puffer Combi
10.1. PARAMETERS SETTING “OPERATION WITH "PUFFER" OR COMBO PUFFER” PARAMETERS TO BE SET RECOMMENDED Setting Parameter description Boiler operating temperature 80°C Boiler minimum temperature 65°C Maximum boiler temperature in thermal inertial 88°C phase Minimum hot water tank temperature 55°C Maximum hot water tank temperature 65°C Temperature difference in heating mode 1.0°C... -
Page 27: Hidraulic Connection Diagrams
6. Temperature differential in external hot water tank heating mode: sets the hot water temperature differential between the S4 boiler temperature probe and the S3 tank temperature probe. NOTE: the hot water tank pump is started when the “Minimum boiler temperature” is reached. Furthermore, the hot water preparation cycle starts when the temperature differential between the S4 high point boiler probe and the S3 combo type tank or "puffer"... -
Page 28: General Connection Diagram With Puffer Or Boiler Combi And Solar Panels
10.3.1. GENERAL CONNECTION DIAGRAM WITH "PUFFER" OR COMBO PUFFER AND SOLAR PANELS Key: System pump Bypass pump External tank circuit pump ("Puffer" or combo Puffer) Solar panel system pump Heating system Non return valve Solar panel system probe "Puffer" low point probe Hot water tank probe - high point Heating system delivery... -
Page 29: N" Zones Systems Connections
11. “N” ZONES SYSTEM CONNECTIONS Company ARCA S.r.l. may supply an extra control board as an accessory for heating systems with 4 different zones (cod.SCH0005C). FIRING AND BURNING Before proceeding to the boiler firing control the following: a) The cast iron bars must be correctly inserted in their supporting hollow frame in the central part of the wood collecting chamber bottom cement plate. -
Page 30: Firing Cycle Starting
12.2. FIRING CYCLE STARTING The firing cycle will end when the boiler is succesfully fired and reaches the minimum admitted operating temperature. To start the cycle the button 11 must be pressed. (paragraph 6, page 13 The drafting fan will start, allowing the boiler to fire. -
Page 31: Warnings
air stream is aimed to complete the combustion oxidizing the flame; to have it adjusted, move the secondary air stream adjusting screw located under the suction air duct. In the ashes that collect over the catalyst elements, in the bottom chamber of the boiler, only very few unburnt materials must be present. -
Page 32: Monthly Cleaning
13.3. MONTHLY MAINTENANCE Remove any carbon deposit from the drafting fan impeller. Usually, with compressed air or a smooth brush a perfect cleaning is achieved. If the deposits are sticked, we recommend anyway to be careful with using more force to avoid unbalancing of the fan impeller which would become noisy and less efficient. - Page 33 Mounting warnings: the piece with longer slots must first be firstly positioned on the boiler back plate side. The grate with longitudinal slots (pic. 1,2,3,4) is better suited to types of wood producing thinner ashes. When the grate is changed, the authorized technical personnel must consider employing the best suitable new type. Warning: depending on the type of wood used, its thermal power and especially the humidity degree and the average ash dimensions, employing a grate with different slot shape may be required in order to prevent slots from plugging.
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Page 34: Troubleshooting
TROUBLESHOOTING 14.1. CONTROL PANEL “TERMODUE” – 2007 rel. TROUBLESHOOTING Problem encountered Solution On the display appears the message: The probe could be faulty or its circuit could be open (check for "Disconnected or faulty probe, i.e. solar an open in the wiring or replace the probe) panels probe, call for assistance”... -
Page 35: Boiler Troubleshooting
NOTE: both the security thermostat sensing element and the system delivery probe (S4) sensing bulbs must be inserted together in the same receptacle near the heating system delivery connection. Note: In case problems occur during a probe installation, it is better to have the two terminals on the board for that probe wire bridged to prevent the warning message of missing or faulty probe from being displayed. -
Page 36: Operation Anormalities
a) Plugged boiler. a) Clean the boiler in all its parts. b) Pumps not connected or b) Connect the pumps to the blocked. control board. c) Wood loaded without The fan does not stop and the c) When loading the wood, be respecting the outlined boiler does not reach the operation careful not to leave empty... -
Page 37: First Firing
16.2. FIRST FIRING Any kind of boiler, especially the high power featured models, requires a gradual first firing to allow for the refractory parts to dry out completely. We recommend loading only a small quantity of fuel the first time and letting the temperature rise slowly. If the boiler is fully loaded the very first time, cracks on the refractory blocks may appear or their surface layer, detaching and falling down. - Page 38 ARCA s.r.l. Sede legale e produzione caldaie in acciaio Via I° Maggio, 16 (zona ind. MN Nord) 46030 San Giorgio (Mantova)P.IVA IT 01588670206 Tel.: 0376/372206 - Fax: 0376/374646 - E-mail: arca@arcacaldaie.com - Tlx 301081 EXPMN I Direzione Commerciale - Tel.: 0376/372617 - Gestione Ordini Clienti - Tel.: 0376/371454 Ufficio Tecnico - Tel.: 0376/371454 Produzione caldaie a gas Via Papa Giovanni XXIII, 105 - 20070 San Rocco al Porto (Lodi)
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