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Summary of Contents for STOKVIS ENERGY SYSTEMS ECONOFLAME R30
- Page 1 ECONOFLAME WALL MOUNTED CONDENSING BOILERS INSTALLATION OPERATION & MAINTENANCE DOCUMENTATION STOKVIS ENERGY SYSTEMS 96R WALTON ROAD EAST MOLESEY SURREY KT8 0DL TEL: 08707 707 747 FAX: 08707 707 767 E-MAIL:info@stokvisboilers.com WEBSITE:www.stokvisboilers.com DOC653/30CV02-151204...
- Page 2 Edition 30CV02A, 18-11-2004 © 2004 Rendamax B.V. All rights reserved. No part of this publication may be copied and/or published by means of printing, photocopying, microfi lming, or by electronic means, on tape or in any other manner whatsoever without the prior permission of Rendamax B.V. in writing. We are engaged in a constant effort to improve our products.
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Page 3: Table Of Contents
Table of contents R30 Technical data Dimensions R30 Introduction Stokvis The supplier This document Service General restrictions Description General Main components 2.2.1 Description of principal components Boiler control Safety aspects Safety Delivery and transport Delivery Packaging Transport Installation Regulations Installation area 5.2.1 General 5.2.2... - Page 4 5.4.3 Water temperature 5.4.4 Water quality Operating instructions Operation Controls Boiler module KM628 Fault signals Setting into operation Switching-off the appliance Warnings Commissioning General Commissioning Maintenance Safety General Procedure Cleaning the burner and the heat exchanger Cleaning the strainer of the gas combination block Ionisation measurement Service Conversion formulae and factors...
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Page 5: R30 Technical Data
R30 Technical data Type R30/45 R30/65 R30/85 R30/100 R30/120 Nominal heat output (80/60 5.6-39.2 8.3-59.2 15.6-77.8 17.6-88.2 21.9-109.8 Nominal heat output (40/30 6.3-43.0 9.2-65.0 17.0-85.0 19.2-96.3 24.0-120.0 Heat input, gcv (H 6.4-44.4 9.5-67.4 17.7-88.8 19.9-99.9 25.0-124.8 Heat input, ncv (H 5.8-40.0 8.6-60.7 16.0-80.0... -
Page 6: Dimensions R30
Dimensions R30 232,5 81 70,5 Fig. 1 Dimensions of the R30 Type R30/45 R30/65 R30/85 R30/100 R30/120 ⁄ " ⁄ " ⁄ " ⁄ " ⁄ " ⁄ "/Rp 1" ⁄ "/Rp 1" ⁄ "/Rp 1" ⁄ "/Rp 1" ⁄ "/Rp 1"... -
Page 7: Introduction
1 Introduction Stokvis Since its beginning in 1985, Stokvis has built up a strong reputation in the industry for the devel- opment, production and marketing of gas fi red, high effi ciency boilers and water heaters in the 43-1200kW range. Thanks to their unique design, these boilers differentiate themselves due to the following: - High thermal output - Environmentally friendly (they meet the most stringent environmental requirements) -
Page 8: General Restrictions
General restrictions Stokvis products should always be used, installed and maintained in accordance with the statu- tory requirements, specifi cations and standards applicable to these installations. All the data, information and suggestions concerning its products provided by Stokvis are based on careful study. - Page 9 Application possibilities The design of the R30 boiler makes it suitable for use in heating systems with: - constant fl ow temperature; - weather dependent set point adjustment; - low temperature condensing system; - external temperature control via building optimiser (0 - 5 Vdc = -10°C + 90°C, below 1Vdc the boiler reverts back to the set temperature (P1), see 5.3.2 ‘connecting terminals’) Fig.
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Page 10: Main Components
Fig. 3 Overall view Main components 1 Flue outlet connection 12 On/off switch 2 Air inlet connection 13 Condensate drain 3 Gas connection 14 Frame 4 Flow connection 15 Burner/ heat exchanger package 5 Automatic air vent 16 Water fl ow temperature sensor 6 Casing 17 Gas valve 7 Return connection... -
Page 11: Boiler Control
Burner/heat exchanger package [15] After the gas/air mixture has been correctly mixed, it fl ows into the burner via the inlet channel. Due to the overpressure, the gas/air mixture is forced through the burner to the external surface of the burner for combustion. The heat exchanger is made of smooth stainless steel tubes in the form of coils. -
Page 12: Safety Aspects
Safety aspects The following safety devices are installed on the boiler: - Temperature monitoring system - High limit temperature monitoring system (STW) - Limit temperature monitoring system (STB) (both are adjustable) - Frost protection system - Using an external sensor, if the external temperature falls below 0°C - Based on the fl... -
Page 13: Delivery And Transport
Do not place any objects on the boiler. Keep a safe distance from the hot water connection and the fl ue, due to the danger of burns. Before starting with any maintenance and service work, shut off the electrical supply and close the gas valve to isolate the gas supply. -
Page 14: Packaging
Packaging The boiler is delivered in suitable cardboard packaging. The types 45, 65, 85 and 100 can be stacked up till two pieces. It’s not allowed to stack up the type 120. Transport Regarding transportation, refer to the technical data for dimensions and weights. The packing should only be removed after transportation, or remove the panels before transpor- tation. -
Page 15: Ventilation
- Ensure that there is suffi cient room around the device for maintenance and the replacement of components if necessary The recommended minimum clearance is as follows: - 1000 mm to the front (free space for movement); - 400 mm above; - 250 mm below;... - Page 16 Fig. 4 Connections of the R30 The appliance is suitable for a 230 V 50Hz power supply with live/neutral/earth. Other connect- ing arrangements are only permissible if an isolating transformer is used. The appliance is phase sensitive. The boiler can be switched on and off using the on/off switch on the control panel. The installer should use a 2-pole main isolating switch with a contact opening of at least 3 mm in the supply circuit to the boiler.
- Page 17 - Adjustable response of the fl ow temperature to sensed room temperature - Calibration of the room sensor - Delay to fl ow temperature compensation due to external temperature up to a maximum of 3 hours - Holiday Programme - Frost protection system based on external temperature or room temperature - Remote activation via telephone if no external room sensor fi...
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Page 18: Water Connections
10-11 Connection terminals for the 2-wire bus signal (scom-bus). Pay attention to the polarity: namely, terminal 10 is earth and 11 is positive. ST 1.1-1.2 An OK-signal is available from these terminals (rated at 230 Vac, 1A). This circuit is closed in normal operation and will be open if more than 2 identical faults occur within 6 minutes (the display will show an error code with a “3”... -
Page 19: Air Inlet Pipe
• Type C53: Room Sealed appliance, connected to a separate air supply and fl ue discharge pipe, opening into different pressure areas. • Type C63: Room Sealed appliance, sold without related connecting and/or discharge fi ttings • Type C83: Room Sealed appliances in cascade, connected to separate air supplies but common fl ue dis- charge through the roof. -
Page 20: Flue
Due to the high effi ciency, there may be condensate formation in the chimney even at high water temperatures. The condensate drain should never be blocked! A direct connection to a brick chimney is not permissible, since the chimney losses must be less than 17%. - Page 21 Length of fl ue in m Diameter Diameter Diameter Diameter Diameter Diameter 70 mm 80 mm 90 mm 100 mm 110 mm 130 mm R30/45 n.a. R30/65 n.a. n.a. n.a. R30/85 n.a. n.a. n.a. R30/100 n.a. n.a. n.a. R30/120 n.a. n.a.
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Page 22: Condensate Drain
5.3.5 Condensate drain Condensate water is formed due to the condensation of fl ue gases, and this has to be drained from the boiler. Pipe the condensate water directly into the waste water drain system. If there is no direct connection to the drain system, a water collection tank equipped with pump and level switch may be used to pump the condensate water into the drain system. -
Page 23: Pump Characteristics
5.4.1.2 Pump characteristics 1,5 Rp 1 [m/s] [m/s] R 1? Rp 1 ⁄ Wilo-Star- RS 25/7 Wilo-Star- RS 25/6 Wilo-Star- RS 30/7 Wilo-Star- RS 30/6 1~230 V - R 1/R 1? 1~230 V - Rp 1/Rp 1 ⁄ 5 [m 0,25 0,75 1 [l/s]... -
Page 24: Water Pressure
5.4.2 Water pressure 5.4.2.1 Operating pressure At a maximum fl ow temperature of 90°C and with the minimum water fl ow that occurs at a ∆t of 20K, the minimum operating pressure should be at least 1.5 bar. The operating pressure should be measured when the pump is switched off. -
Page 25: Operating Instructions
Very soft ‹ 50 ppm Soft 50-160 ppm Moderately hard 160-250 ppm Hard and very hard ‹ 250 ppm The system should contain soft to medium hard water, with the water hardness that does not exceed 250 ppm at a fl ow temperature of 80°C and ∆t 20 K. Before supplying water, the hardness and chloride value of the system water should always be determined. -
Page 26: Boiler Module Km628
Boiler module KM628 Lid closed Lid open Fig.6 Boiler module 1 Operating mode 1 Parameter indication K Stand-by P1 Actual/required fl ow temperature q Automatic operation (winter position) P2 Actual/required hot water temperature t Hot water operation (summer position) P3 Required fl ow temperature* W Service operation (constant load) P5 Actual external temperature 2 Rotary selection switch: operating mode... -
Page 27: Fault Signals
Actual/Required fl ow temperature Actual/Required hot water temperature Required fl ow temperature Actual external temperature Actual fl ue gas temperature Actual/maximum boiler load P10 Enter password (only for trained technicians). Input and output symbols (lid open) Input symbols Ionisation measured for fl ame detection Signal for external enable Bus Signal for bus connection Output symbols... - Page 28 2/3 Interlock circuit has been interrupted An external safety device connected to the terminals (ST 9.3-9.4) has been triggered. Check and repair this safety device. No fl ame signal when the burner starts No fl ame is detected within the preset safety time when burner starts. Restart is possible if pro- grammed.
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Page 29: Setting Into Operation
CRC fault in safety-relevant parameters An EEprom fault has arisen in the stored safety parameters. Check and change this parameter set. Fault in low-voltage supply The low voltage supply is too low, or the fuse is defective. Repair the fault and press reset. X.y. - Page 30 Commissioning Before operating the appliance, the following should be done: - Switch off the electrical power supply of the appliance - Remove the case. This consists of the double front plate and the side plates. Unscrew the 8 screws on the top and bottom. The casing can then be removed in one operation. - Check the leak-tightness of the gas connection - Check whether the electrical connection and the earthing have been properly done.
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Page 31: Maintenance
- Setting the CO value for the R30 series There is a fl at setting screw on the venturi with which the CO value can be set at full load. Set the boiler at full load and check the CO value. -
Page 32: Procedure
Procedure a) Switch of the electrical supply to the boiler b) Close the gas valve fi rmly In order to carry out the following work, it is necessary to fi rst remove the outer casing. - The ignition and ionisation electrodes are installed on the front side of the boiler. Remove the spark plug caps and inspect the same for possible damage such as signs of arcing and contamination (replace the same if necessary). -
Page 33: Conversion Formulae And Factors
9 Conversion formulae and factors Formulae − 20 9 measured O × 11 7 20.9 × measured CO 20 9 − 20 9 11 7 11.7% CO is the maximum CO percentage that is generated by stoichiometric burning of G20 natural gas (H-gas). - Page 34 1 kcal = 4.187 kJ 1 kWh = 3.6 Mj Effi ciency at the fl ue gas side The difference between gross and nett calorifi c values is the heat of evaporation of the combus- tion produced water. At 298.15 K (25°C), this is 2442.5 kJ/kg (583.38 kcal/kg). For non-condensating boilers: ...
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