Baxi PRIME HT 240 User Manual

Wall-mounted condensing boilers
Installerʼs and Userʼs Instructions
BAXI S.p.A. is a leading European manufacturer of central heating and domestic hot water appliances (wall mounted gas
boilers, floor standing boilers, electric water heaters) and has been certified by CSQ as conforming to UNI EN ISO 9001.
This certification confirms that the Quality System of
BAXI S.p.A. in Bassano del Grappa, where this boiler was manufactured,
satisfies the strict UNI EN ISO 9001 standard covering all aspects of company organisation, manufacturing and distribution.
UNI EN ISO 9001
CERTIFICAZIONE DEI SISTEMI
QU
ALITA' DELLE AZIENDE
PRIME HT
0085
GB

Baxi PRIME HT 240 Specifications

General

Model	PRIME HT 240
Mounting	Wall-mounted
Output Power	24 kW
Fuel Type	Natural gas / LPG
Warranty	2 years
Efficiency Class	A
ERP Heating	A
Type	Wall-mounted
Dimensions (H x W x D)	700 x 400 x 280 mm

Summary

User Instructions

Installation & Commissioning Steps

Initial setup, installation checks, and boiler startup procedures.

Operation & Temperature Adjustments

How to adjust room and domestic hot water temperatures using controls.

Error Handling & System Management

Understanding error codes, resetting the boiler, and system filling.

Shutdown, Protection & Servicing

Boiler shutdown, frost protection, gas change, and servicing instructions.

Installer Instructions

General Installation & Preparation

General remarks for installers and pre-installation requirements.

Boiler Installation & Flue Systems

Physical installation, sizing, and guidelines for flue and air duct systems.

Mains Power & Electrical Connections

Connecting the 230V power supply and system wiring.

Control System Wiring & Regulators

Wiring for thermostats, sensors, and the QAA73 temperature regulator.

QAA73 Parameter Configuration

Setting installer parameters for the QAA73 temperature regulator.

Gas Calibration & Function Activation

Calibrating the gas valve and activating specific functions.

Control & Safety Devices Overview

Explanation of boiler control devices, safety thermostats, and operational functions.

Combustion Checks & Performance

Positioning electrodes and checking combustion parameters for efficiency.

Component Maintenance & Schematics

DHW heat exchanger maintenance, filter cleaning, and boiler schematics.

Wiring Diagrams & Technical Data

Boiler wiring diagrams and comprehensive technical specifications.