Riello RTQ 3S Series Installation, Operation, Management And System Management Manual
Steel boilers
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Summary of Contents for Riello RTQ 3S Series
- Page 1 S T E E L B O I L E R S RTQ 3S 35-55-70 INSTALLATION, OPERATION, MAINTENANCE AND SYSTEM MANAGEMENT MANUAL...
- Page 2 CONFORMITY RTQ 3S r boilers conform to the Efficiency Directive 92/42/CEE (✫✫✫). When used in conjunction with a CE marked jet burner, they also satisfy the requirements of the Gas Appliances Directive 2009/142/EC (until 20 April 2018 ) and Regulation (EU) 2016/426 (from 21 April 2018) and applicable sections of the Electromagnetic Compatibility Directive 2004/108/CE and Low Voltage Directive 2006/95/CE.
- Page 3 This instruction manual contains important instructions and precautions that must be observed to ensure the trouble-free installation and efficient functioning of your RTQ 3S r boiler. Please accept our renewed thanks for your purchase. Riello S.p.A.
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Page 4: Table Of Contents
CONTENTS GENERAL General safety information page 5 Precautions “ Product description “ Control panels “ Recommended burners “ Product identification “ Technical specifications “ Accessories “ SYSTEM MANAGER Start up page 11 Temporary shutdown “ Preparing for extended periods of disuse “... -
Page 5: General
GENERAL SAFETY INFORMATION The boiler is delivered in separate crates. Check Periodically check that operating pressure in the water circuit is over 1 bar but below the maximum that it is complete, undamaged and as ordered as soon as you receive it. Report any discrepancies or limit specified for the boiler. -
Page 6: Product Description
PRODUCT DESCRIPTION Stainless steel turbulators inside the flue gas pipes RTQ 3S r steel boilers are high efficiency boilers establish an ideal pressure inside the combustion cham- with horizontal, flame reversal combustion chambers ber and an ideal flue gas temperature. Evenly distributed and concentrically arranged flue gas pipes. -
Page 7: Control Panels
CONTROL PANELS The r control panels that can be used with r RTQ 3S steel boilers are listed below. These control panels cater for all the needs of the heating system and of all the devices installed in it. Respect the indications of the table rigorously to ensure trouble-free operation and maximum reliability of your boiler over time. -
Page 8: Recommended Burners
RECOMMENDED BURNERS See the instruction manual provided with the burner for further information on: - burner installation - electrical connections - burner adjustments. 1 - Long heads and burner plates are required for the correct installation and coupling of the burners. 2 - If a two stage burner is installed, 1st stage heat input must not be less than 70% of total heat input. -
Page 9: Product Identification
Blast tubes must not exceed the specified lengths When you finish installing the burner in the boiler, by more than 20%. fill the gap between the burner’s blast tube and the refractory material in the door with the ceramic insu- Do not re-use old burners if their blast tube lengths lation (A) supplied with the boiler. -
Page 10: Technical Specifications
TECHNICAL SPECIFICATIONS RTQ 3S DESCRIPTION Fuel GAS / OIL Rated heat input 34,8 23,6 33,3 51,8 Rated useful heat output Pn 32,8 51,6 65,0 Useful efficiency at minimum Pn 94,2 95,1 94,2 Useful efficiency at maximum Pn 94,2 93,8 94,2 Useful efficiency at 30% (47°C) 95,9 95,5... -
Page 11: System Manager
START UP RTQ 3S Have r’s Technical Assistance Service start up your boiler for the first time. Once this has been done, the boiler can be left to function automatically. Under certain circumstances, such as after long periods of disuse, the service engineer responsible for the boiler may need to re-start it without involving the Technical Assistance Service. -
Page 12: Temporary Shutdown
The burner should now ignite and remain in operation If a “LOCKOUT SHUTDOWN” occurs, wait about 30 until the set temperature is reached. seconds before resetting the burner. The burner will then switch off and on automatically to maintain the set temperature without further operator To reset the burner, press the red button light on the action. -
Page 13: Preparing For Extended Periods Of Disuse
PREPARING FOR EXTENDED PERIODS OF DISUSE If the boiler is not going to be used for an extended period of time, perform the following operations: - Turn the control panel power switch OFF and make sure that the green power indicator goes out - Turn the mains power switch OFF - Close the fuel cock and heating circuit water cock - Drain the central heating circuit if there is any risk of... -
Page 14: Maintenance
MAINTENANCE r’s Technical Assistance Service is qualified to satisfy these legal requirements and can also provide useful information on MAINTENANCE PROGRAMMES designed to guarantee: - greater safety - compliance with applicable legislation - freedom from the risk of fines in the event of spot checks. -
Page 15: Unpacking The Product
UNPACKING THE PRODUCT RTQ 3S r steel boilers come in 3 separate crates: BOILER BODY CRATE to which is attached the documentation envelope (A) containing: - Instruction manual - Data label (to be applied to the casing on comple- tion of the installation) - Certificate of Warranty and water test certificate - Bar code labels - Spare parts catalogue... -
Page 16: Overall Dimensions And Weights
OVERALL DIMENSIONS AND WEIGHTS RTQ 3S DIMENSIONS A - Width A1 - Base width B - Depth B1 - Base depth C - Height D - Burner height D1 - Flue height - Door depth Weight of boiler Weight of casing HANDLING RTQ 3S Remove the fixing screws and remove the wooden pallet... -
Page 17: Place Of Installation
PLACE OF INSTALLATION RTQ 3S r steel boilers must be installed in a dedi- When installing the boiler, allow sufficient space cated boiler room, with adequately sized vents, in compli- around it to access all safety and control devices ance with applicable laws and standards. and to permit easy maintenance. -
Page 18: Installation In Older Systems And Systems Requiring Modernisation
INSTALLATION IN OLDER SYSTEMS AND SYSTEMS REQUIRING MODERNISATION When installing these boilers in old systems or systems are made and installed in compliance with applicable requiring modernisation, always perform the following standards. checks: - Make sure that the expansion vessels are big enough to - Make sure that the stack is able to withstand the tem- contain the volume generated by thermal expansion. - Page 19 Below are given the two main hydraulic diagrams: Just heating installation SYSTEM DELIVERY 1 - Boiler 2 - System headers 3 - Sectioning valves 4 - System circulators 5 - Check valves 6 - Automatic pressure relief valve 7 - Boiler safety valve 8 - Boiler discharge valve SYSTEM RETURN...
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Page 20: Anti-Condensate Pump
ANTI-CONDENSATE PUMP An anti-condensate pump operates during periods of no heat request to avoid damage until the boiler returns to a stable operating temperature. While the system is operating, this pump must guarantee a flow rate between 20 and 30% maximum flow to ensure a water return temperature no lower than 55 °C. -
Page 21: Door Hinges
Any discharge pipes that are not insulated are a The flue pipe must guarantee minimum depression as laid potential hazard. down by current Technical Standards, taking "zero" pres- sure at the connection with the flue duct. Unsuitable or wrong sized flue pipes and flue ducts The connections must be sealed with material could increase combustion noise, cause condensation resistant to temperatures of at least 250°C (for exam-... - Page 22 - Make sure that the main door fixing bolts (1) are securely tightened. - Remove the top safety bolts (2) and the door stop - Insert a spanner through the slot in the side of the bracket (3). top door mounting bracket and hold the bushing (5) - Remove the bottom safety bolts (4) and the door steady.
- Page 23 - Fit the top door stop bracket (3) to the opposite side - Completely unscrew the main fixing bolts (1) and of the door and fix it in place with the safety bolts (2). open the door. (These bolts are captive in the door - Fit the bottom door stop bracket (5) to the opposite and cannot be removed.) side of the door and fix it in place with the safety...
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Page 24: Earth Connection
EARTH CONNECTION A terminal is provided on the front boiler head to connect - Connect the other end of the cable to the system’s the boiler body to an efficient earth system. earth bar. Proceed as follows. Another hole (*) in the left side of the boiler head - Unscrew the nut and washer (1) from the earth termi- can also be used to earth the appliance. -
Page 25: Fitting The Casing Panels
FITTING THE CASING PANELS - Engage the bottom of the side panels (1) in the bottom - Fit the cable grommets provided into their seats in the rails (2) and engage the top lip of the side panels in the panels slots (A) in the front and rear heads - Fit the top panel (4) to close the top of the boiler... -
Page 26: Technical Assistance Service
PREPARING FOR INITIAL START-UP It is essential to perform the following checks before start- ing up or testing the functioning of your RTQ 3S r boiler. In particular, check that: - The protective cardboard sheet (1) has been removed from the ceramic fibre - The turbulators (2) are correctly positioned (vertically) inside the heat exchange tubes and the clips (3) are resting against the wall (4) of the heat exchanger... -
Page 27: Initial Start-Up
INITIAL START-UP Once you have completed all the preparatory steps, proceed as follows to start up the boiler for the first time: - If the system is equipped with a temperature controller or timer thermostat, make sure that it is switched ON - Adjust the timer thermostat/s or temperature controller to the desired temperature (~20°C) - Turn the system’s main power switch ON... -
Page 28: Checks During And After Initial Start-Up
CHECKS DURING AND AFTER INITIAL START-UP Once the boiler has started up, make sure that it shuts down and re-starts properly when the following actions are taken: - The boiler thermostat setting is changed - Power to the control panel is switched off and on again - The room thermostat or timer thermostat is adjusted. -
Page 29: Maintenance
MAINTENANCE Regular maintenance is a legal requirement. In Italy it is required by Presidential Decree 412 of the 26th August 1993. It is also essential for the safety, efficiency and durability of the boiler. Proper maintenance keeps consumption and emis- sions down, and ensures that the boiler continues to operate reliably over time. -
Page 30: Cleaning The Boiler
CLEANING THE BOILER Clean the boiler and remove any carbon deposits from the surfaces of the heat exchanger at least once a year. This not only extends the boiler’s working life, but also keeps it efficient in terms of heat output and consumption. Proceed as follows to clean the boiler: - Open the front door (1) and pull out the turbulators (2) - Use a flue brush (3) or other suitable tool to clean inside... -
Page 31: Troubleshooting
TROUBLESHOOTING FAULT CAUSE CORRECTIVE ACTION The boiler becomes dirty Check the adj. of the burner Burner badly adjusted very quickly (perform flue gas analysis) Clean the flue gas pipes and Blockage in stack stack Burner air intake dirty Clean the burner air intake The boiler does not reach its Boiler dirty Clean the flue gas pipes... - Page 32 RIELLO S.p.A. Via Ing. Pilade Riello, 7 37045 - Legnago (VR) www.riello.com The manufacturer strives to continuously improve all products. Appearance, dimensions, technical specifi cations, standard equipment and accessories are therefore liable to modifi cation without notice.