Related Manuals for Viessmann Dekamatik-HK1
Summary of Contents for Viessmann Dekamatik-HK1
- Page 1 Start-up and Service Instructions Dekamatik-HK1 Digital indoor/outdoor heating circuit control unit See Notes on Applicability, page 4. Dekamatik-HK1 5167 139 1/99...
- Page 2 Safety Safety, Installation and Warranty Requirements Please ensure that this manual is read and understood before commencing installation. Failure to comply with the issues listed below and details printed in this manual can cause product/property damage, and/or severe personal injury. Ensure all requirements below are understood and fulfilled (including detailed information found in manual subsections).
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Page 3: Table Of Contents
Function in conjunction with the wall mounting fixture of the Dekamatik-HK1 .......... -
Page 4: General Information
Literature applicable to installation of the IMPORTANT Dekamatik-HK 1: - Installation Instructions - Start-up and Service Instructions Leave all literature at the installation - Operating Instructions site and advise the system operator/ultimate owner where the literature can be found. Contact Viessmann for additional copies. -
Page 5: Start-Up Procedure
Start-up Start-up Procedure 1. Check (plug-in) connections Page ..............2. -
Page 6: Instructions
Mixing valve motor for Viessmann mixing valve – for Dekamatik-HK1 for wall mounting, Part No. 9300 000 (accessory) – for Dekamatik-HK1 for mounting on the mixing valve, Part No. 7408 831 (standard with HK1) The mixing valve motor is a reversible single-phase synchronous motor with gear system and two limit switches. - Page 7 Start-up Instructions 3. Adjust the heating curve The heating curves represent the relationship between the outdoor temperature and the supply temperature. Put simply: The lower the outdoor temperature, the higher the supply temperature. In turn, the room temperature is dependent on the supply temperature. The heating curves shown are based on the following settings: “Parallel shift of heating curve”...
- Page 8 Start-up Instructions 4. Check communication with other control units (if installed) The communication module (accessory) is required for communication with other control units (see page 43). Via scan 2 (see page 33) on the The 2nd placed digit from the left programming unit, check that the rotary indicates the setting of the rotary switch.
- Page 9 A Open Activated control unit. Mixing valve motor, Dekamatik-HK1 for mounting on the heating circuit B None mixing valve: “X4” in the terminal Mixing valve motor, compartment of the control unit. heating circuit B...
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Page 10: Troubleshooting
Troubleshooting Troubleshooting Steps Diagnosis 1. Error message/check behavior of system. Malfunctions indicated by fault display: Call up the system component concerned and the nature of the fault on the display (page 13) 2. Select the diagnosis table – for malfunctions indicated by fault display (page 14) –... -
Page 11: Diagnosis
Troubleshooting Diagnosis Not every “irregularity” in the system is a defect in the Dekamatik; these are dependent on the unit’s programming. In such an instance, review prescribed settings of the Dekamatik unit (see Operating Instructions). Malfunctions indicated by fault display Via an integrated fault diagnostic system, the Dekamatik indicates errors within the heating system enabling the user to analyze problems. - Page 12 Troubleshooting Diagnosis Diagnosis table: Malfunctions indicated by fault display Error message Cause of fault Action Displayed in Displayed in Behavior of Fault Search Diagnosis/ system menu Sensors menu OUTDOOR SHORT The control unit works Short circuit Check outdoor temperature sen- TEMP.
- Page 13 Troubleshooting Diagnosis Diagnosis table: Malfunctions indicated by fault display (continued) Error message Cause of fault Action Displayed in Displayed in Behavior of Fault Search Diagnosis/ system menu Sensors menu FAULT B5 Mixing valve not in WS/RS remote control unit Check remote control unit and its control cable to remote control unit (see mode...
- Page 14 Troubleshooting Diagnosis Diagnosis table: Malfunctions not indicated by fault display (continued) Behavior of system Action Activate heating Heating circuit cold, heating circuit Heating circuit pump running → circuit pump with pump not running Check heating curve setting, setpoint values and, if applicable, relay test (see relay test (see external connections...
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Page 15: Correction
Troubleshooting Correction Check outdoor temperature sensor 1. Disconnect plug from socket “X 14” in the terminal compartment. 2. Measure resistance of sensor at terminals “1” and “2” of the plug. Outdoor tempera- Resistance ture in °F / °C in Ω Outdoor temperature sensor Supply temperature sensor 3. - Page 16 Troubleshooting Correction Check supply temperature sensor 1. Disconnect plug from socket “X 14” in the terminal compartment. 2. Measure resistance of sensor at terminals “3” and “4” of the plug. Supply Resistance temperature in Ω in °F / °C Outdoor temperature sensor Supply temperature sensor 3.
- Page 17 Troubleshooting Correction Check room temperature sensor, Part No. 7408 012 (accessory) The room temperature sensor is used for measuring the room temperature. It does not contain any controls. The room temperature sensor is used instead of the outdoor temperature sensor 1.
- Page 18 Troubleshooting Correction Check room temperature sensor, Part No. 7408 012 (continued) (accessory) The room temperature sensor is used to supplement the RS remote control unit 1. Disconnect room temperature sensor from the RS remote control unit. 2. Measure resistance of sensor (room temperature sensor as NTC).
- Page 19 Troubleshooting Correction Check return temperature sensor, Part No. 7450 042 (accessory) 1. Disconnect plug from socket “X3” in the terminal compartment. 2. Measure resistance of sensor at terminals “1” and “2” of the plug. Return temperature Resistance in °F / °C in Ω...
- Page 20 Troubleshooting Correction Check WS remote control unit (Part No. 7450 027) (accessory) Check RS remote control unit (Part No. 7450 028) (accessory) The WS remote control unit is used for setting the desired room temperature values from anywhere in the building. The RS remote control unit is used for setting the desired room temperature values from the main living room (with room temperature dependent control).
- Page 21 Correction Check Viessmann 2-wire BUS, Part No. 7450 066 (accessory) The Dekamatik-HK1 can communicate with the Dekamatik boiler and heating circuit control units. For this purpose the communication module (accessory) must be installed in the Dekamatik-HK1. The rotary switch and the low voltage connector sockets are arranged on the communication module.
- Page 22 Troubleshooting Corrective Actions Check Viessmann 2-wire BUS, Part No. 7450 066 (continued) (accessory) Setting of rotary switches on the Dekamatik-HK1 in combination with Dekamatik-HK1 Dekamatik-HK2 Dekamatik-HK4 communication electronics board electronics board electronics board E 4.I E 4.II module E 4.I Dekamatik-HK1 as an indepen- ———...
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Page 23: Additional Information
Additional Information Overview of coding 1 and 2 Procedure The coding of the Dekamatik-HK1 is IMPORTANT carried out with the “ ,” “ ,” “ ” and “ ” buttons and the “ ” adjustment knob on the programming unit. - Page 24 MIN. supply TEMPERATURMIT 32 °F / 0 °C Heating circuit B OTS= outdoor temperature sensor (may also be referred to as “ATS” in some literature pieces). RTS = room temperature sensor. Settings for heating circuit B are ignored on the Dekamatik-HK1.
- Page 25 Heating circuit A is operated without BUS is connected: output reduction Heating circuit A is operated with output reduction (boiler start-up control) Output reduction OUTPUT REDUCTION Heating circuit B HEATING CIRCUIT B: Settings for heating circuit B are ignored on the Dekamatik-HK1.
- Page 26 Pure room temperature control (note coding address “013:...”) 022:000 Actual outdoor tempera- 022:001 Actual outdoor temperature value enabled ture value blocked for the for the Viessmann 2-wire BUS Viessmann 2-wire BUS 023:000 Without communication 023:001 With communication module module 024:000...
- Page 27 The outdoor temperature value is transfer- red from the boiler control unit via the Viessmann 2-wire BUS. 057:002 Dekamatik-HK1 with room temperature sensor 084:... Call up desired return tempe- rature 085:... Call up actual return tempe- rature...
- Page 28 Coding change Alternative possibility Address: value Address: value 0B7:015 Heating Operated with output reduc- 0B7:000 circuit A tion (boiler start-up control); only if Viessmann 2-wire BUS is installed 0B8:008 0C3:003 0C5:011 0C6:000 0C8:001 0C9:003 Start of summer time: March 0C9:001...
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Page 29: Calling Up Actual And Desired Temperatures Or Operating Status Information
Additional Information Calling up actual and desired temperatures or operating status information In addition to operating status information, i.e. function of the mixing valve and the heating circuit pump, the following actual and desired temperatures can be called up on the display panel of the Comfortrol programming unit: –... -
Page 30: Scanning
Additional Information Scanning Scan 1 The settings and switching conditions of the Dekamatik can be checked by means of a scan facility. Open the cover on the programming unit SYSTEM/STATUS and scroll through the menu as follows: SCAN 1: 000000 Menu option Button SCAN 2:... - Page 31 Additional Information Scanning Scan 2 Information on the Viessmann 2-wire BUS and the software status can be called up. Open the cover on the programming unit SYSTEM/STATUS and scroll through the menu as follows: SCAN 1: 002000 Menu option Button SCAN 2: →...
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Page 32: Entering Heating Contractor Contact Information
Additional Information Language Selection and Entering Heating Contractor Contact Information Language selection (if required) Open the cover on the programming unit LANGUAGE/LANGUE and scroll through the menu as follows: Menu option Button → SYSTEM “ ” >ENGLISH:..A → FACTORY SETTING “... -
Page 33: Functional Descriptions
Additional Information Functional Descriptions Supply temperature control Brief description Heating circuit pump logic: The mixing valve motor receives the If the outdoor temperature is higher than signal “Close mixing valve.” The supply temperature is controlled by the preset room temperature setpoint The greater the control difference, the opening and closing the mixing valve in value, the heating circuit pump is... -
Page 34: External Heat Demand / External Heat Disable, Changeover Of The Heating Program
External heat demand Where an external heat demand is received, the mixing valve opens. In conjunction with a boiler control unit via the Viessmann 2-wire BUS, a boiler water temperature setpoint value can also be selected via coding address “042:...”. - Page 35 Additional Information Functional Descriptions External heat demand /external heat disable, changeover of the heating program (continued) Changeover of the heating program The heating system (i.e. in a holiday When the cottage is occupied, the contact must be reset manually or another cottage) is set manually to the “...
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Page 36: Optimized Control Of The Underfloor Heating System
The control unit computes a return The return temperature setpoint value temperature setpoint value. The supply calculated by the Dekamatik-HK1 is temperature is changed whenever the displayed in coding address “084:...” and actual return temperature differs from the the actual return temperature in coding return temperature setpoint value. - Page 37 Additional Information Functional Descriptions Functions in conjunction with wall mounting fixture of the Dekamatik-HK1 Compiled fault indication Data transfer and sensor faults are reported. In conjunction with a Dekamatik boiler control unit, a compiled fault message is also relayed to these via the Viessmann 2-wire BUS (accessory).
- Page 38 Additional Information Functional Descriptions Functions in conjunction with wall mounting fixture of the Dekamatik-HK1 (continued) 120 V Output signal with external demand With the external demand (see page 36) a 120 V output signal can be activated. In this case it is not possible to connect the compiled fault indicator.
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Page 39: System Components
Additional Information System Components Dekamatik-HK1 (overview of connections) Open terminal compartment Low voltage connectors unscrewing the screws on the X14 for outdoor temperature sen- X11 for external heat demand (open sor or room temperature cover below the programming unit mixing valve)/ external... - Page 40 Additional Information System Components Dekamatik-HK1 (overview of connections) Wall mounting fixture (wall-mounted Dekamatik-HK1) Terminal strips for connecting mixing valve motor and compiled fault indicator...
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Page 41: Electronics Board
Communication module, Part No. 7450 560 (accessory) The communication module is required for data transfer between other boiler or heating circuit control units. It contains the rotary switch and the low voltage connector sockets for the Viessmann 2-wire BUS. Rotary switch Low voltage connector sockets... -
Page 42: Wall Mounting Fixture With Blank Cover
Additional Information System Components Wall mounting fixture with blank cover, Part No. 7450 175 (accessory) The wall mounting fixture is used for mounting the Comfortrol programming unit for use as a remote control. When the Comfortrol programming unit is used as a remote control, it is not possible to insert another programming unit in the control unit.
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