Keston HEAT 45 User Manual

User Instructions
FAN POWERED HIGH EFFICIENCY
MODULATING CONDENSING
GAS BOILER
CE/PI No. 86-CN-69
Heat 45 - GC No. 41-930-40
Heat 55 - GC No. 41-930-41
Heat 45 & 55
These instructions must be left either with the
user or next to the site gas meter.
Keston Heating
PO Box 103, National Avenue, Kingston Upon Hull, HU5 4JN
Tel. +44 (0) 1482 443005 Fax. +44 (0) 1482 467133
email : info@keston.co.uk web : www.keston.co.uk
COMPLIANT WITH BUILDING REGULATION PART L1 & L2
SEDBUK A RATED

Keston HEAT 45 Specifications

General

Type	Condensing
Output	45 kW
Boiler Type	System
Mounting	Wall Mounted
Max. CH Output (kW)	45 kW
Max. DHW Output (kW)	45kW
ERP Rating	A
Fuel Type	Natural Gas

Summary

Safety and Installation Precautions

Important Notes

Critical warnings and operational restrictions for safe boiler use.

Electricity Supply Requirements

Specifies the required voltage, frequency, and fusing for the boiler.

Minimum Installation Clearances

Required space around the boiler for servicing and ventilation.

How to Light the Boiler

Step-by-step guide for initiating the boiler operation.

Boiler Controls and Display Modes

Standby Mode Operation

Boiler state with no heating or hot water demand.

Summer Mode Operation

Enables domestic hot water but disables central heating.

Winter Mode Operation

Enables both central heating and hot water demand.

Domestic Hot Water (DHW) Mode

Displays boiler status during hot water demand.

Central Heating Mode

Displays boiler status during central heating demand.

Boiler Frost Protection Mode

Indicates when the boiler is in frost protection mode.

User Interface and Settings

Setting Stat 1 Temperature

Procedure to adjust the primary thermostat setting.

Setting Summer, Winter, and Standby

Configuring the boiler's seasonal operational mode.

Boiler Shutdown and Maintenance

Shutting Down the Boiler

Instructions for short and long-term boiler shutdown.

Relighting the Boiler

Procedure to restart the boiler after shutdown or fault.

Condensate Drain Issues

Troubleshooting frozen condensate pipes.

Boiler Cleaning Guidelines

Recommended methods for cleaning the boiler exterior.