Demir Dokum HK 50 M Service Bulletin
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HK 50 M – HK 10M – HK 100S SERVICEBULLETIN1. PRODUCT INTRODUCTION1.1. Product Specific InnovationsPremix burner providing constant gas-air mixture.16.3 - 100 kW thermal power range for HK 100 M and HK 100 S products.Capability to obtain 400 kW power from the cascade system formed by 8 units.Capability to use B1 polypropylene waste gas piping thanks to maximum 80 ºC waste gas temperature.Up to 30 meters of clean air and waste gas pipe connection for the HK 50 M product.Optional water and gas connection kits.Error reporting with microprocessor-control card and LEDs.Control of up to 60 units within the cascade system, with the electronic control unit. Frostprotection safety that runs in coordination with the room thermostat or the devicetemperature.Capability of controlling low (30-50 ºC) and high temperature (50-80 ºC) installations with the roomthermostat.Capability of prioritizing between adaptation heating and domestic water installations with the outdoor airsensor.Capability of prioritizing the domestic water installation.Capability of appointing two different modes ofoperation to two different installations.Equal time operation of units in cascade systems.In the event of a failure in the master device, capability to control the slave devices in anemergency. Legionella protection feature entry via remote control system.1.2. Product TypesThe product is available in 3 types. These are HK 50 M, HK 100 M and HK 100 S models.HK 50 M and HK 100 M models are devices that can operate and control other devices connected to itself incascade systems referred to as the master. HK 100 S model is a device that can operate in connection with a masterdevice. Numbers 50 and 100 in the model names indicate the thermal load capacity of the device in kW. Letter Mindicates that the device is of master type and the letter S indicates that the device is of slave type.1.3. General InformationHK 50 M, HK 100 M and HK 100 S are condensing wall type boilers for heating purposes, that run with natural gas orLPG and which have a wall-mounted premix burner, with one heating unit (50 M model) or two heating units (100 M- 100 S models). Devices compatible with cascade systems can work on the same heating systems by interconnectingvia a station (with master device). Each heating unit has a heating power of 48.5 kW in case of heating from 30 ºC to50 ºC. It allows modulation in the range of 30-100% and achieves 108.7% efficiency. Low waste gas temperatureallows using up to 30 meters of B1 polypropylene waste gas piping with a diameter of 50 mm for the HK 50 Mproduct. For every 90º bends, 2m should be deducted from the total waste gas piping.With the electronic card, it can communicate rapidly with systems providing different types of heating and domesticwater, so that personal preferences can be applied in cascade systems.1.4. Warnings regarding installation and use of the device and general warranty conditions- Installation of the equipment must be performed by an authorized Dealer of Demirdöküm or byDemirDöküm Installation Service.- Necessary electrical connections for the device must be made by an Authorized Demirdöküm Service.Service Administration 4 03/2010 |
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