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Table of contents
KOTŁOSPAW Sp. z o.o.
ul. Szenica 38
63-300 Pleszew
Water boiler with manual feed
"DREWKO/Z"
suitable for closed circuit protection
Operating and assembly instructions
Original instructions
Technical and operating documentation
Supplementary guidelines
Thermal output of the boiler ... kW
Serial No. ....................
Year of construction ....
The boiler is suitable for closed systems with vessels
diaphragms for protecting low-temperature water boilers for solid fuels with
manual fuel feed.
Failure to properly secure the boiler may result in serious damage to the boiler
and danger to the user.
For your own safety, the user should ask the installer to confirm that the boiler is
protected in a closed system in accordance with the guidelines given in the DTR.
The boiler bears the "CE" marking
1
type:
October 2022
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Summary of Contents for KOTLOSPAW DREWKO/Z
- Page 1 KOTŁOSPAW Sp. z o.o. ul. Szenica 38 63-300 Pleszew Water boiler with manual feed type: "DREWKO/Z" suitable for closed circuit protection Operating and assembly instructions Original instructions Technical and operating documentation Supplementary guidelines Thermal output of the boiler … kW Serial No.
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Page 2: Table Of Contents
Introduction ......................... 3 Requirements for closed loop protected boilers with diaphragm vessel ......... 3 Boiler protection ........................3 Construction and installation of boiler cooling equipment ............. 3 4.1 Installation requirements ......................4 Bleed and fill valve ........................ 4 Type SYR 5067 thermal protection valve ................. 5 Thermostatic safety valve type: DBV 2 .................. -
Page 3: Introduction
1. Introduction These operating instructions (DTR) are supplementary guidelines for the installation and operation of boilers of the type: "DREWKO/Z" made for protection in a closed system with a diaphragm vessel. For boilers protected in a closed circuit with a diaphragm vessel, the requirements for "DREWKO"... -
Page 4: Installation Requirements
5. Bleed and fill valve. For boilers of the "DREWKO/Z" type, it is necessary to use as a cooling device a thermal protection device with an appropriate heat output for the given boiler size. -
Page 5: Type Syr 5067 Thermal Protection Valve
and return connections. The discharge from the valve should be connected safely to the waste water system. It is important that the supply connection spigot is connected directly to the water system, without intermediate shut-off elements (valves). Attention! The hot water drain must be secured and discharged to the sewer. The use of an additional hot water outlet cooling system from the boiler is recommended. - Page 6 Boiler water cooling rate [°C/min]. Cooling valve type SYR 5067 Number of valves [pcs.] Table 2 Thermal and technical parameters thermostatic safety valve type: DBV 2 for "DREWKO/Z" boilers Boiler type "DREWKO/Z" Boiler output [kW] Cooling water flow - required...
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Page 7: Installation Diagram
The cooling valves have been sized so that the water flow through the valve is less than its catalogue capacity, which ensures that the boiler water is cooled and excess energy is compensated for. The required cooling water flow meets the throughput capacity of the SYR 5067 thermal protection device, which, according to catalogue data, is 0.58 m3/h (9.7 l/min) at the smallest setting and parameters, while the valve type: DBV 2 is 1.3 m3/h (21.7 l/min), Tables 1 and 2 show the required valve capacities to achieve the assumed boiler water discharge... -
Page 8: Safety Requirements
Figure 1b - Variant 2 Diagram and description of the equipment installation for closed circuit protection with thermostatic safety valve type: DBV 2 1 Boiler 2 Buffer 3 WHU storage tank 4 Installation controller 5 Hydraulic distributor (no clutch!) 6 Radiator heating 7 Return protection pump l short circuit 8 WHU tank charging pump 9 Heating pump... -
Page 9: Safety Valve
6.1 Safety valve For boilers of type: "DREWKO/Z" with rated output: 12 + 24 kW the given types and sizes of safety valves can be used. SYR 1915 - Through hole diameter do = 12, opening start pressure p= 0.2MPa, thread diameter G1/2 781C - Through seat diameter do = 16, opening start pressure p =0.2MPa, thread diameter G3/4... -
Page 10: Operational Requirements
7. Operational requirements Before commissioning: Check by the manufacturer's or installer's service the correct operation of all equipment in a closed system with diaphragm vessel. Check by calling up the emergency simulation in a controlled manner, taking all safety and precautionary measures. During operation, the user is obliged to. - Page 11 It is forbidden to start up the boiler without a decision from the Office of Technical Inspection authorising its operation! In accordance with the aforementioned decree of the Minister of the Economy, prior to commencing operation, the user shall report the equipment in writing to the relevant technical supervision unit in order to obtain a decision authorising the equipment for operation.
- Page 12 The minimum capacity of the expansion vessel, should be determined. The method for exact Vsystem capacity selection given in D.2 should be used. In case the data for the design is not complete, Table D.1 can be used as a guideline for sizing the vessel. Note that the values given in Table D.1 refer to the case of a maximum design limit temperature of 110°C and no reserve water volume, i.e.
- Page 13 the extension volume Ve in litres corresponding to the percentage extension and the maximum temperature of the jet in the installation; Water reserve volume, , in litres. In addition to the water capacity due to thermal expansion, the expansion vessel should have a minimum water reserve to compensate for possible water losses in the system.
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Page 14: Residual Risk
Table D.1 - Capacities of expansion vessels in a central heating system (& = 110°C, = 0 l) 3.0 bar 2.5 bar 2.0 bar Safety valve setting The initial load pressure of the 0.5 bar 1.0 bar 1.5 bar 0.5 bar 1.0 bar 1.5 bar 0.5 bar... -
Page 15: Causes Of Residual Risk And Ways To Address Them
Observe all requirements and prohibitions for operation specified in the DTR of the boiler type: DREWKO/Z, It is strictly forbidden to operate the boilers (above 50kW) by persons without a valid licence and by minors, unshod, under the influence of alcohol or other intoxicants. - Page 16 Shut-off valves on the inlet and outlet of the cooling system 11. Boiler protection system equipment in a closed system. Table 3 shows the set of equipment of the "DREWKO/Z" boilers adapted for protection in a system with a diaphragm vessel.
- Page 17 Table 3 Set of fittings and accessories for boilers adapted for closed system protection with a diaphragm vessel Water boiler with manual feed "DREWKO/Z" Boiler power kW Safety valve Safety valve type SYR 1915 Through hole diameter up to =16mm, G1/2...
- Page 18 Confirmation of boiler protection in accordance with EN 12828:2003 Boiler: DrewKo ......Type /Model No. / Year of manufacture Installer: company name installer's name address/telephone User: ......................Company/name address/telephone It is confirmed that the above mentioned boiler has been installed in a closed system meeting the requirements of PN-EN 12828:2003.
- Page 19 Person representing the above company authorised to issue technical documentation: Przemyslaw Wroński signing this document we declare with full responsibility that the manufactured by our company: Ecological water boiler with manual feeding. "DREWKO/Z" - low-temperature adapted for protection in a closed system with a diaphragm vessel.
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