Hoval UltraGas 300 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 300 Specifications

General

Model	UltraGas 300
Type	Condensing Boiler
Efficiency	Up to 109%
Dimensions (H x W x D)	1800 x 850 x 1600 mm
Weight	950 kg
Operating Pressure	6 bar
Heating Capacity	300 kW
Fuel Type	Natural Gas

Summary

Important Notes

General safety instructions

General safety instructions for system installation and operation.

Regulations, official approvals

Installation

Set-up

Procedures for the physical placement and positioning of the boiler unit.

Technical Information

Description of the boiler

UltraGas® (125-1150) technical data

Comprehensive table of technical specifications, performance, and dimensions.

Dimensions space / required

Specifies clearances and space requirements for boiler installation.

Installation

Requirements on the boilerhouse

Flue gas connection, flue gas conduit

Requirements for flue gas evacuation systems and pipework.

Gas connection

Safety measures and procedures for connecting the gas supply.

Hydraulic connection

Safety equipment integrated and connection principles for the heating circuit.

Commissioning

Filling the heating system

Water quality

Gas inlet pressure

Functional check of combustion cylinder pressure monitoring

Procedure to verify the safe operation of the pressure monitoring system.

Changing to a different type of gas

Instructions for converting the boiler to operate with different gas types.

Maintenance

Safety instructions

Safety guidelines for performing maintenance and cleaning tasks.

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 involving flue gas analysis and settings.

Parameter list - automatic firing device BIC 960