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General| Type | Combi Boiler |
|---|---|
| Model | VORTEX Pro External Combi 21e |
| Output | 21 kW |
| Fuel Type | Oil |
| Mounting | External |
| Warranty | 2 years |
Provides comprehensive technical specifications and dimensions for the boiler models.
Requirements and recommendations for fuel storage tank and pipework.
Guidelines for selecting a suitable and safe location for the boiler installation.
Step-by-step instructions for physically installing the boiler unit.
Procedures for filling and removing air from the heating system.
Detailed steps for connecting flow, return, and hot water pipes.
Guidance on setting up and operating the domestic hot water system.
Requirements for safe and effective disposal of boiler condensate.
Instructions for safely connecting the boiler to the mains electrical supply.
Wiring diagrams for connecting central heating controls only.
Wiring guide for connecting a remote timer and room thermostat.
Wiring guide for connecting the Grant RSKIT programmable thermostat.
Wiring instructions for connecting controls for both heating and hot water.
Installation and wiring guide for the wireless RFTKIT thermostat.
Wiring guide for connecting a Grant ESKIT two-channel programmer.
Installation requirements and clearances for the standard low level flue.
Pre-commissioning checks to ensure the boiler is ready for operation.
Step-by-step procedure for safely switching on and starting the boiler.
Checks and adjustments required during the initial boiler run.
Essential checks to perform before starting boiler servicing procedures.
Steps for safely dismantling the boiler components for servicing.
Procedures for cleaning the internal parts of the boiler.
Initial diagnostic steps for troubleshooting common boiler faults.
Comprehensive troubleshooting guides for various operational issues.
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