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REMEHA Manuals
Boiler
Calenta 28c
Installation and service manual
REMEHA Calenta 28c Installation And Service Manual
High-efficiency wall-hung condensing gas boilers
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
Introduction
Symbols Used
Abbreviations
General
Manufacturer's Liability
Installer's Liability
Homologations
Certifications
Equipment Categories
Additional Directives
Factory Test
Safety Instructions and Recommendations
Safety Instructions
Recommendations
Technical Description
General Description
Main Parts
Operating Principle
Gas/Air Setting
Combustion
Heating and Domestic Hot Water Production
Control System
Adjustment
Regulation of the Water Temperature
Protection against a Shortage of Water
Maximum Temperature Protection
Skeleton Diagrams
Shunt Pump
Water Flow Rate
Technical Specifications
Installation
Regulations Governing Installation
Package List
Standard Delivery
Accessories
Choice of the Location
Data Plate
Location of the Boiler
Ventilation
Main Dimensions
Positioning the Boiler
Alternatives for Hydraulic Connections
Connection of the Underfloor Heating
Connection of a Solar Hot Water Tank
Connection of an Independent Hot Water Tank
Geyser Use
Solo Use
Hydraulic Connections
Flushing the System
Connection of the Heating Circuit
Hydraulic Connection of the Water Circuit for Domestic Use
Connecting the Expansion Vessel
Connecting the Condensate Discharge Pipe
Gas Connection
Connections for the Air and Exhaust Pipes
Classification
Outlets
Lengths of the Air/Flue Gas Pipes
Specific Air/Flue Gas Applications
Additional Directives
Air/Exhaust Adapter
Connection of the Combustion Gas Exhaust Pipe
Connection of the Air Intake Pipe
Electrical Connections
Control Unit
Recommendations
Standard Control PCB
Connecting the Room Thermostat
Connecting the Outside Temperature Sensor
Connect Frost Protection
Connecting the Calorifier Sensor/Thermostat
Pc/Laptop Connection
Shutdown Input
Release Input
4.10 Optional Electrical Connections
Connection Options for the 0-10 V Control PCB (IF-01)
Connection Possibilities for the PCB (SCU- S02)
4.11 Electrical Diagram
4.12 Filling the System
Water Treatment
Filling the Siphon
Filling the System
Commissioning
Control Panel
Functions of the Keys
Meaning of the Symbols on the Display
Check Points before Commissioning
Preparing the Boiler for Commissioning
Gas Circuit
Hydraulic Circuit
Electrical Connections
Commissioning the Boiler
Gas Settings
Adapting to Another Gas Type
Setting the Air/Gas Ratio (Full Load)
Setting the Air/Gas Ratio (Part Load)
Basic Setting for the Gas/Air Ratio
Checks and Adjustments after Commissioning
Finalizing Work
Reading out Measured Values
Reading the Various Current Values
Readout from the Hour Counter and Percentage of Successful Starts
Status and Sub-Status
Changing the Settings
Parameter Descriptions
Modification of the User-Level Parameters
Modification of the Installer-Level Parameters
Setting the Maximum Heat Input for Central Heating Operation
Return to the Factory Settings
Carrying out an Auto-Detect
Setting the Manual Mode
Setting the Legionella Protection Function
Switching off the Boiler
Installation Shutdown
Frost Protection
Switching off the Central Heating
Shutting down Domestic Hot Water Production
Checking and Maintenance
Maintenance Message
Preventive Maintenance with Automated Service Message
Resetting the Automatic Maintenance Message
Dealing with the Next Maintenance Message and Starting the New Maintenance Period
Standard Inspection and Maintenance Operations
Checking the Hydraulic Pressure
Checking the Ionization Current
Checking the Transfer Capacity
Checking the Tightness of the Flue Gas Evacuation and Air Inlet Connections
Checking Combustion
Checking the Automatic Air Vent
Checking the Safety Valve
Checking the Siphon
Checking the Burner and Cleaning the Heat Exchanger
Specific Maintenance Operations
Replacing the Ionization/Ignition Electrode
Cleaning the Plate Exchanger (Domestic Hot Water End) and the Water Filter Cartridge
Replacing the 3-Way Valve
Replacing the Non-Return Valve
Assembling the Boiler
Troubleshooting
Error Codes
Shutdowns and Lock-Outs
Blockage
Blocking
Error Memory
Error Readout Memorised
Deletion of the Error Display
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Quick Links
1
Symbols Used
2
Error Codes
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High-efficiency wall-hung condensing gas boilers
Calenta 25s - 28c - 35s - 40c
7600585-01
Installation and
Service Manual
Netherlands
EN
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