Hoval UltraGas 250 User Manual

Subject to modi cations |
EN
Technical information
Installation instructions
4 217 215 / 00 - 12/18 UK
Hoval products may only be installed and commissioned
by appropriately qualied experts. These instructions
are intended exclusively for the specialist. Electrical
installations may only be carried out by a qualied
electrician.
The oor-standing gas condensing boilers UltraGas
®
(125-1150) acc. to EN 15502-1/15502-2-1 are suitable
and licensed for use as heat generators for hot water
heating systems with a permissible ow temperature of
up to 90 °C
1)
. They are designed for continuously con-
trolled reduced operation in heating systems.
1)
See technical data
UltraGas
®
(125-1150)
Condensing gas heating boilers
for natural gas and liquid gas
for modulating operation
These instructions apply to the following types:
Rated output levels at 40/30ºC and for natural
gas
45-UltraGas
®
(125) 28 - 123 kW
45-UltraGas
®
(150) 28 - 150 kW
45-UltraGas
®
(200) 44 - 200 kW
45-UltraGas
®
(250) 49 - 250 kW
45-UltraGas
®
(300) 57 - 300 kW
45-UltraGas
®
(350) 58 - 350 kW
45-UltraGas
®
(400) 97 - 400 kW
45-UltraGas
®
(450) 97 - 450 kW
45-UltraGas
®
(500) 97 - 500 kW
45-UltraGas
®
(575) 136 - 575 kW
45-UltraGas
®
(650) 136 - 650 kW
45-UltraGas
®
(720) 142 - 720 kW
45-UltraGas
®
(850) 166 - 850 kW
45-UltraGas
®
(1000) 224 - 1000 kW
45-UltraGas
®
(1150) 233 - 1150 kW
45-UltraGas
®
H (720) 142 - 720 kW
45-UltraGas
®
H (1000) 224 - 1000 kW

Hoval UltraGas 250 Specifications

General

Brand	Hoval
Model	UltraGas 250
Category	Boiler
Language	English

Summary

Important Notes

General safety instructions

General safety rules for operation and installation.

Technical information

UltraGas® (125-1150) technical data

Comprehensive technical specifications and performance data.

Dimensions space / required

Installation

Safety instructions

Safety precautions specifically for the installation process.

Requirements on the boilerhouse

Flue gas connection, flue gas conduit

Condensate drain

Gas connection

Safety warnings and procedures for connecting the gas supply.

Hydraulic connection

Commissioning

Filling the heating system

Water quality

Venting the gas pipe

Steps for safely venting the gas pipe before operation.

Functional check of combustion cylinder pressure monitoring

How to check and set pressure monitoring for safety.

Setting the gas quantity, measuring the CO₂ (O₂) and NOx/CO content in the flue gas

Procedure for adjusting gas quantity and measuring flue gas composition.

Changing to a different type of gas

Instructions for converting the boiler to different gas types.

Maintenance

Safety instructions

Safety precautions for maintenance tasks.

Cleaning

Cleaning the burner cylinder (inside and out)

Cleaning the combustion chamber and burner cylinder on the outside

Clean/adjust ignition and ionisation devices

Setting the gas quantity, measuring the CO₂ (O₂) and NOx/CO content in the flue gas

Maintenance task for setting gas quantity and measuring flue gas.

Parameter list - automatic firing device BIC 960

Detailed list of parameters for the automatic firing device.