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Related Manuals for Buderus Ecomatic HS 2105
Summary of Contents for Buderus Ecomatic HS 2105
- Page 1 5647 488 5/98 USA Service Manual Ecomatic HS 2105 Save These Instructions !
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Page 2: Table Of Contents
TABLE OF CONTENTS Introduction Mounting Instructions Testing the Manual Reset High Limit (STB) Key Code Program Overview and Description of the Installation Level Entry Process 9-10 Installation Entries 11-30 Display of Heating Curve(s) Testing of Relays LCD Test Total System Reset Version Number Trouble Shooting Procedures Parameter Settings at the Installation Level... -
Page 3: Introduction
2-stage or dual burner control and outdoor reset control of a motorized mixing valve for floor heating applications. Note: Buderus Hydronic Systems, Inc. strongly recommends the use of a thermostatic valve on the outlet of the DHW storage tank to prevent scalding when operating the HS2105 in manual override mode. - Page 4 1 Introduction Case 2: Multiple zones with the main zone on Heating Curve constant circulation (day mode) MAX TEMP1 Room Sensor The heating curve is set in a similar way as in Case 1. A Compensation Effect Ref Temp Burner room sensor is required in the constant circulation zone to Heating Curve Differential...
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Page 5: Mounting Instructions
Mounting Instructions • Remove the front panel of the boiler. • Only necessary with the G124X, G224E, G234X and G334X boilers. • Remove the two screws and housing from the top of the Ecomatic. • Insert the two front feet of the control into the holes provided on the top of the boiler. - Page 6 2 Mounting Instructions • Electrical connections must be made according to the wiring diagram (See pages 40-46). • All the wires should be routed through the cable raceway at the rear of the boiler. Rear panel jacket may be modified per local code.
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Page 7: Testing The Manual Reset High Limit (Stb)
Testing the Manual Reset High Limit (STB) R E L A Y S 1. Switch the control on with the main power switch (I Position). 2. Enter the key code (See page 8). 3. Turn the dial until “RELAYS”appears in the display. B U R N E R O N 4. -
Page 8: Key Code
4 Key Code Key Code The access to the installation level of the HS2105 control is protected against unauthorized use by a special key code. Entry in this level allows you to change settings described in this manual. This installation level should only be accessed by a heating contractor or a trained operator. - Page 9 Program Overview The Installation level consists of a maximum of 12 main menus. Each main menu addresses a specific set of features of a certain component of the heating system. These features are contained in submenus. Most values are changed at the submenu level, not at the main menu level.
- Page 10 5 Program Overview Listing of Entries at the Installation Level Access to the installation is done using the key code. Display Read-out Page DEUTSCH Language selection BLR TEMP Boiler parameters FREEZTEMP Frost protection temperature BLDG RESP Building heat storage capacity TWO STAGE*1 Burner operation details MIN MOD*2...
- Page 11 Installation Entries Freeze Protection: “FREEZTEMP” To prevent the heating system from freezing, the control will automatically permit the heating circulators to run continuously in the night mode when the outside temperature drops below the “FREEZTEMP” value irrespective of the selected setback mode. The factory setting is 41˚F;...
- Page 12 6 Installation Entries Building Type: “BLDG RESP” The type of building in terms of insulating factor, heat storing capacity and response to outside temperature changes is specified with the “BLDG RESP” setting. The HS2105 control uses this setting to respond in a delayed fashion to changes in outside temperature and relies on the heat storing capacity to maintain a comfortable temperature level in the building.
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Page 13: Installation Entries
Installation Entries Burner Installation: “BURNER” The burner module FM242 must be installed for this submenu to appear. The factory setting without the FM242 module is “ONE STAGE”. However, this setting does not become visible in the display when module FM242 is not installed. The HS2105 control automatically switches from single stage to two stage when the FM242 module is inserted. - Page 14 6 Installation Entries Minimum Fi ring Rate for a Modulating B u rner: “MIN MOD” The installation of the burner module FM242 and the selection of a modulating burner (“MOD BRNR”) are required in order for this submenu to appear. The minimum firing rate of the burner modulation is specified in this setting.
- Page 15 Installation Entries Modulating Valve Operating Time for the Modulating Burner: “MOD TIME” The installation of the burner module FM242 and the selection of a modulating burner (“MOD BRNR”) are required in order for this submenu to appear. The modulating valve operating time is the total time in seconds required for the modulating burner to go through its full operating range.
- Page 16 6 Installation Entries Condensate Protection Feature: “PUMPLOGIC” The HS2105 control has a built in feature called “PUMPLOGIC” where the control interrupts circulator operation when the burner fires into a cold boiler. Once a specified temperature is reached in the boiler, the pumps are permitted to run.
- Page 17 Installation Entries Maximum Burner Shut-off Temperature:“MAX TEMP1” A maximum temperature is specified above which the electronic boiler sensor shuts off the burner. This setting is not operative when the control is operating in the manual mode using the emergency override switch. The adjustable capillary high limit shuts off the burner in manual override mode.
- Page 18 6 Installation Entries Flue Gas Temperature Sensing: “FLUE TEMP ” Module KM271 must be installed for this submenu to appear. The flue gas temperature can only be measured and shown in the display when the KM271 module is installed in the HS2105 control. The flue gas temperature can be viewed in the display.
- Page 19 Installation Entries Heating System Lay-out The HS2105 control is designed for individual control of two heating circuits with different water temperatures. The second heating circuit is only possible when the mixing module FM241 has been installed. The nature of each heating circuit must be specified to the control.
- Page 20 6 Installation Entries Heating Curve Selection: Setting the Reference Temperature The heating curve establishes the relationship between the outside air and boiler water temperatures. The boiler water is automatically lowered at warmer outside temperatures and raised at colder outside temperatures. REF TEMP ˚F The correct heating curve is determined by the characteristics of the...
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