Product Information; Designated Use; Standards, Regulations And Directives; National Regulations - Buderus Logano plus GB312 Installation And Service Instructions Manual

Inspection/maintenance
Heating systems should be regularly maintained for the following
reasons:
• to achieve a high level of efficiency and to operate the system
economically (low fuel consumption),
• to achieve a high level of operational safety and reliability,
• to maintain the cleanest possible combustion,
▶ Recommendation for users: sign a maintenance and servicing
contract with an approved heating contractor covering annual
servicing and condition-based maintenance.
▶ Maintenance and repair may be performed only by authorized
contractors.
▶ Immediately correct all faults to prevent system damage.
▶ The operator is responsible for the general and environmental safety
of the heating system.
▶ Use only original spare parts! No liability is assumed for damage
caused by the use of spare parts not supplied by Buderus.
Installation and adjustment
▶ Correct and proper installation and adjustment of the burner and the
controller are the fundamental requirements for safe and economical
operation of the boiler.
▶ Have the boiler installed only by a qualified contractor.
▶ Never change any parts in contact with flue gas.
▶ Work on gas components may only be carried out by qualified and
authorized personnel.
▶ Only qualified electricians are permitted to carry out electrical work.
Installation regulations must be complied with.
▶ With sealed combustion appliances: do not cover or reduce the size
of ventilation openings in doors, windows and walls. If draft-proof
windows are installed, ensure an adequate supply of combustion air.
▶ Never shut off safety valves! Water may escape from the safety
valve for the hot water system and piping when the water is being
heated.
Instructing the customer
▶ Instruct the customer about how the boiler works and is operated.
▶ Inform the customer that they must not carry out any modifications
or repairs.
Logano plus GB312 – 6 720 806 273 (2013/01)
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Product information

These installation and maintenance instructions contain important
information for the safe and appropriate installation, commissioning and
servicing of this gas condensing boilerLogano plus GB312.
The installation and maintenance manual is provided for contractors
who have been trained and have experience in working with heating
systems and oil-fired installations.
The boiler can be equipped with a user interface, e. g. RC35
(accessory).
Use the boiler only in the combinations and with the accessories and
spare parts that are specified in the installation and maintenance
instructions.
Any other combination, accessory or wearing part may be used only if
these are specifically designed for the intended application and impair
neither the performance characteristics nor the stipulated safety
requirements.
2.1

Designated use

The Logano plus GB312 is designed for heating central heating system
water and, with the use of an indirect tank, domestic hot water, for
instance in apartment buildings.
2.2

Standards, regulations and directives

Observe all standards and guidelines applicable to the
installation and operation of this heating system in your
country.
2.2.1

National regulations

The heating system must comply with the requirements of the relevant
regulatory authorities or otherwise of the National Fuel Gas Code, ANSI
Z 223.1. In Canada, the requirements of CAN/CSA-B.149.1 or 2,
Installation Code for Gas Burning Appliances and Equipment, must be
observed.
If specified by the Local Authority having Jurisdiction, the heating
system must comply with the regulations of the Standard for Controls
and Safety Devices for Automatically Fired Boilers, ANSI/ASME CSD-1.
Carbon monoxide detectors must be installed as specified by the local
regulations. Boiler requires yearly maintenance.
Boiler operating conditions
The heat exchanger has been designed and certified in accordance with
the ASME Boiler and Vessel Code, Section IV.
Maximum boiler temperature:
Maximum operating pressure:
The hot water piping system must comply with the applicable legislation
and regulations. If an existing boiler is being replaced, the entire hot
water piping system must be inspected to ensure that it is in suitable
condition to assure safe operation.
2
Product information
200 °F
50 psi
5