Related Manuals for Viessmann EM-EA1
Summary of Contents for Viessmann EM-EA1
- Page 1 VIESMANN Installation and service instructions for contractors EM-EA1 extension DIO electronics module Function extension EM-EA1 extension Please keep safe. 6131087 GB 1/2020...
- Page 2 Safety instructions Safety instructions Please follow these safety instruc- tions closely to prevent accidents and material losses. Safety instructions explained Danger Note This symbol warns against the risk Details identified by the word "Note" of injury. contain additional information. Please note This symbol warns against the risk of material losses and environmen- tal pollution.
- Page 3 Viessmann. water pipes to discharge static loads. Repair work Please note Repairing components that fulfil a safety function can compromise the safe operation of the system. Replace faulty components only with genuine Viessmann spare parts.
- Page 4 Safety instructions Safety instructions (cont.) Safety instructions for operating the system If you smell gas Condensate Danger Danger Escaping gas can lead to explo- Contact with condensate can be sions which may result in serious harmful to health. injury. Never let condensate touch your Do not smoke.
- Page 5 Safety instructions Safety instructions (cont.) Danger The simultaneous operation of the boiler and appliances that exhausts air to the outside can result in life threatening poisoning due to a reverse flow of flue gas. Fit an interlock circuit or take suita- ble steps to ensure an adequate supply of combustion air.
-
Page 6: Table Of Contents
Index Index Information Disposal of packaging ................Symbols ....................Intended use ..................Product information ................System examples ................■ Spare parts lists .................. ■ Installation sequence Wall mounting ..................Overview of electrical connections ............Electrical connections ................10 Connecting external functions ............... 11 Connecting external set flow temperature 0 to 10 V: 0 - 10 V IN .. - Page 7 Information Disposal of packaging Please dispose of packaging waste in line with statu- tory regulations. Symbols Symbol Meaning Reference to other document containing further information Step in a diagram: The numbers correspond to the order in which the steps are carried out. Warning of material losses and environ- mental pollution Live electrical area...
- Page 8 Heat generator installation and service instruc- 3 EM-EA1 function extensions can be connected. tions Only one function can be connected to each EM-EA1 function extension (DIO electronics module). The functions that can be connected depend on the settings made at the heat generator.
-
Page 9: Overview Of Electrical Connections
Installation sequence Wall mounting Fig. 1 Overview of electrical connections fÖ 1 2 3 4 5 6 Fig. 2 Digital input 1 230 V relay output, 230 V input Digital input 2 Power supply fÖ Digital input 3 Power supply for additional accessories fÖ... -
Page 10: Electrical Connections
Installation sequence Overview of electrical connections (cont.) Function Page Connections: PWM1 0 - 10 V 43-1 43-L External functions External set flow temperature ■ 0 to 10 V External set value for heat generator ■ modulation 0 to 10 V Operating mode changeover ■... -
Page 11: Connecting External Functions
Installation sequence Connecting external functions Connecting external set flow temperature 0 to 10 V: 0 - 10 V IN Analogue input for connecting the externally specified set flow temperature fÖ Fig. 3 Enable signal Junction box When making the connection, ensure correct polarity The 0 to 10 V hook-up generates the following set flow of the DC control voltage 0 - 10 V. -
Page 12: Connecting The Operating Mode Changeover: Di1 To Di3
Installation sequence Connecting external functions (cont.) Note If 230 V voltage is present at digital input 43-1, the No galvanic separation is required between the earth external default output is enabled. conductor and the negative pole of the on-site power source. -
Page 13: Connecting External Demand: Fd
Installation sequence Connecting external functions (cont.) Connecting external demand: The demand is active if 230 V voltage is present at dig- ital input 43-1. A demand is issued to the heat genera- tor. fÖ The set values for the flow temperature and the speed of the primary pump are specified at the control unit of the heat generator with parameters 528.0 and 1100.2. -
Page 14: Connecting The Fault Message Input And Fault Message Output
Installation sequence Connecting the fault message input and fault message output Fault message input 230 V (without system blocking): fÖ Fig. 9 Fault message facility Junction box Fault message input 43-1 and conductor L of the The fault message is active if 230 V voltage is present ■... -
Page 15: Fault Message Input 24 V And System Blocking: Di1
Installation sequence Connecting the fault message input and fault… (cont.) Fault message F.104 and message I.57 are displayed on the control unit of the heat generator. Fault message input 24 V and system blocking: DI1 Example: Connecting a condensate removal pump 1 2 3 4 5 6 Fig. -
Page 16: Connecting An (External) Lpg Valve: Fd
Installation sequence Connecting an (external) LPG valve: Output 43-L is active as soon as the burner control unit starts the burner. The external LPG valve opens. fÖ Fig. 13 Connecting an extractor hood (external extractor interlock): Example: Extractor hood The floating contact switches from "Ö" to "S" as soon as the burner control unit starts the burner. -
Page 17: Power Supply
Installation sequence Power supply Power supply at heat generator Connect the power cable to the extension. Route the power cable to the heat generator and con- nect to plug . Observe the fuse protection of the contact (output) on the heat generator. If the power supply is connected to another accessory, use plug A provided. - Page 18 Installation sequence Power supply (cont.) Connect the power supply in accordance with the dia- gram. If the power supply to the appliance is connected with a flexible cable, ensure that the live conductors are pulled taut before the earth conductor in the event of strain relief failure.
-
Page 19: Connecting Several Accessories
Installation sequence Connecting several accessories Power supply and PlusBus connection Power supply to all accessories via heat generator control unit Fig. 18 Some accessories with direct power supply Fig. 19 Heat generator control unit ON/OFF switch Mixer extension kit for heating circuit with fÖ... -
Page 20: Rotary Switch S1 For Subscriber Number Addressing
■ These settings are independent of the settings made at other extensions, such as EM-MX (mixer). If an EM-EA1 extension is set to 1, an EM-MX, EM-M1 or EM-P1 extension can also be set to 1. Fig. 20 Configuring functions... - Page 21 Connection and wiring diagram Connection and wiring diagram Fig. 21 Digital input 1 Digital input 2 Digital input 3 0 - 10 V IN Input 0 to 10 V 0 - 10 V OUT Output 0 to 10 V, no function Fuse 2 A (slow) PWM1 Control voltage output, no function...
- Page 22 Specification Specification Rated voltage 230 V∼ Rated frequency 50 Hz Rated current Power consumption – electronics 2.8 W Power consumption 12 mA Permissible ambient temperature Operation 0 to +40 °C ■ Storage and transport 20 to +60 °C ■ – Output for rated breaking capacity (floating) 1 A, 230 V~...
-
Page 23: Final Decommissioning And Disposal
Disposal Final decommissioning and disposal Viessmann products can be recycled. Components For decommissioning the system, isolate the system and substances from the system are not part of ordi- from the power supply and allow components to cool nary household waste. -
Page 24: Declaration Of Conformity
Declaration of Conformity Using the serial number, the full Declaration of Con- formity can be found on the following website: We, Viessmann Werke GmbH & Co. KG, D-35107 www.viessmann.co.uk/eu-conformity Allendorf, declare as sole responsible body that the named product complies with the European directives and supplementary national requirements in terms of its design and operational characteristics.