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General| Boiler Type | Combi |
|---|---|
| Fuel Type | Natural Gas |
| Mounting | Wall Mounted |
| ERP Rating | A |
| Central Heating Output | 24 kW |
| Type | Condensing |
| Gas Type | Natural Gas |
| Max Flow Rate | 16.5 l/min |
Explains warning signal words and symbols used in the document.
Provides essential safety guidelines for operation, gas leaks, and potential hazards.
Specifies the correct application and limitations for the Greenstar boiler.
Lists available boiler models and their key characteristics.
Indicates the location and content of the appliance's rating plate.
Lists key features and functionalities of the appliance.
Provides a list of typical accessories available for the appliance.
Details the physical dimensions and required clearances for installation.
Illustrates and labels the internal components of the ZWB..-3A appliance.
Shows the electrical diagram and component connections for the appliance.
Presents detailed technical specifications, performance data, and measurements.
Lists the typical chemical composition of the appliance's condensate.
Outlines adherence to national, local, and industry standards for installation.
Specifies the maximum operational temperature and pressure limits for the boiler.
Details specific installation requirements for Massachusetts, including CO detectors and signage.
Illustrates a piping and wiring diagram for a multi-zone system with zone valves.
Illustrates a piping and wiring diagram for a multi-zone system using circulators.
General guidelines for installing and operating the heating system.
Key considerations for filling the heating system and commissioning the boiler.
Important notes regarding air/flue systems, condensate disposal, and system compatibility.
Guidance on choosing the correct size for an external expansion vessel.
Requirements and considerations for choosing a suitable installation location.
Instructions on preparing and installing pipes before mounting the appliance.
Steps for securely mounting the boiler onto the wall.
Procedure for installing the low water cut off device.
Information on connecting various flue gas system accessories.
Guidelines for correctly installing the exhaust and air intake system components.
Provides examples of approved horizontal and vertical venting installations.
Details maximum allowable lengths for vent and combustion air pipes.
Procedures for checking gas and water connections for leaks after installation.
General electrical safety precautions, codes, and wiring requirements.
Details on accessing and connecting low voltage components within the Heatronic control.
Steps for safely opening the Heatronic boiler control unit.
Instructions for connecting the outdoor temperature sensor accessory.
Connects external safety switches like the LWCO.
Connects the supply temperature sensor for system supply pipe.
Instructions for connecting the appliance to the electrical power supply.
How to connect external thermostats or zone controls for heat demand.
Procedure for connecting the Low Water Cut Off device.
Steps to take before the initial operation of the appliance.
How to turn the appliance on and off.
Guidance on setting the supply temperature for space heating.
Procedure for adjusting the domestic hot water temperature.
How to set the appliance to manual summer mode.
Instructions for enabling frost protection for the heating system and DHW.
Steps to activate and deactivate the keypad lock for the boiler controls.
Explains the pump anti-seize function to prevent seizing during idle periods.
How to adjust the boiler pump speed using the dial.
Overview of how to access and navigate service functions.
Categorizes service functions into level 1 and level 2.
Lists and describes service functions accessible at the first level.
Lists and describes service functions accessible at the second level.
Detailed explanations of available service functions.
Detailed explanations of service functions from 1.A to 0.E.
Detailed explanations of service functions from 8.A to 9.d.
Instructions for converting the appliance to a different gas type.
Adjustments needed for installations at higher altitudes.
Procedure for checking and adjusting the gas-air mixture.
How to perform a dynamic gas pressure test.
Explains how to use the emissions test button to select outputs.
Procedure for measuring CO levels in the flue gas.
Outlines the various steps involved in inspecting and maintaining the appliance.
How to access the most recent fault code using service function 6.A.
Procedure for cleaning or replacing the fresh water inlet filter.
Guidance on checking and cleaning the plate-type heat exchanger.
Steps for checking, cleaning, or replacing the electrodes.
Procedures for servicing the appliance's burner.
How to inspect and clean the heat exchanger block.
Steps for removing and cleaning the condensate trap.
Procedure for checking the mixer diaphragm for damage.
Guidance on the annual inspection of the expansion vessel.
How to check and set the boiler water pressure.
How to test the pH level of the system water.
How to check electrical wiring for damage.
A checklist to guide through the service and maintenance procedure.
General troubleshooting advice and safety warnings.
Lists display codes, their descriptions, and elimination steps.
Describes appliance faults not indicated by display codes and their solutions.
Resistance values for the outdoor temperature sensor at different temperatures.
Resistance values for the additional supply temperature limiter.
Resistance values for supply and DHW temperature sensors.
Order numbers for replacement code plugs for different appliance models.
