Hoval UltraGas 500 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 500 Specifications

General

Type	Condensing Boiler
Output	500 kW
Operating Pressure	6 bar
Fuel Type	Natural gas
Modulation range	20 - 100%
Efficiency	Up to 109.5% (referred to net calorific value)
Heat exchanger material	Aluminium-silicon alloy

Summary

Important notes

General safety instructions

General safety guidelines and precautions for system installation and operation.

Installation

Set-up

Guidelines for the physical placement and positioning of the boiler.

Requirements on the boilerhouse

Flue gas connection, flue gas conduit

Guidelines for connecting the flue gas system, including materials and dimensions.

Gas connection

Instructions and safety warnings for connecting the gas supply to the boiler.

Hydraulic connection

Details on connecting the boiler to the heating system's hydraulic circuit.

Electrical connection

Procedures and safety requirements for connecting the boiler's electrical supply.

Technical information

Description of the boiler

UltraGas® (125-1150) technical data

Detailed technical specifications and performance data for various boiler models.

Dimensions space / required

Required clearances and dimensions for boiler installation and access.

Commissioning

Filling the heating system

Water quality

Functional check of combustion cylinder pressure monitoring

Safety checks for pressure monitoring devices to prevent hazardous operation.

Changing to a different type of gas

Steps and considerations for converting the boiler to different gas types.

Maintenance

Safety instructions

Critical safety warnings for maintenance personnel before starting work.

Cleaning

Cleaning the burner cylinder (inside and out)

Clean/adjust ignition and ionisation devices

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

Procedures for adjusting gas quantity and measuring flue gas emissions during maintenance.

Parameter list - automatic firing device BIC 960

Comprehensive list of parameters for the BIC 960 firing device and their settings.