Hoval UltraGas 850 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 850 Specifications

General

Brand	Hoval
Model	UltraGas 850
Category	Boiler
Language	English

Summary

Important notes

General safety instructions

General guidelines for safe operation and installation.

Installation

Set-up

Procedures and space requirements for boiler installation.

Requirements on the boilerhouse

Guidelines for boiler room specifications and ventilation.

Flue gas connection, flue gas conduit

Directives and requirements for flue gas evacuation systems.

Condensate drain

Gas connection

Safety precautions and routing for gas connections.

Hydraulic connection

Electrical connection

Guidelines for safe electrical hook-up, EMC measures, and cable specifications.

Technical information

Description of the boiler

Overview of the Hoval UltraGas® condensing boiler features.

UltraGas® (125-1150) technical data

Detailed technical specifications and performance data.

Dimensions space / required

Commissioning

Filling the heating system

Procedures for filling the heating system with water.

Water quality

Functional check of combustion cylinder pressure monitoring

Verifying the safety function of combustion cylinder pressure monitoring and checking settings.

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 for different models.

Changing to a different type of gas

Maintenance

Safety instructions

Safety precautions for maintenance and cleaning work.

Information for fire inspector / chimney sweep regarding emission and manual operation settings

Cleaning

Parameter list - automatic firing device BIC 960

Automatic firing device UltraGas® (125-450)

Automatic firing device UltraGas® (500-1150)