Buderus Logano G334 X User Manual

6304 2381 – 09/2005 US/CA For heating engineers
Please read carefully before conversion
Propane Conversion Kit
Instructions
Logano G334 X gas-fired boiler
This conversion kit and the accompanying instructions are for conversion of
G334 X gas-fired boilers from natural gas to propane.
Required Input Rates
G334 X-73
301 MBtu/hr
G334 X-92
378 MBtu/hr
G334 X-116
476 MBtu/hr
G334 X-132
541 MBtu/hr
WARNING!
This conversion kit is intended for use by a
qualified service company only as
specified by the manufacturer’s
instructions and the current applicable
rules and regulations of the local
authorities and the regulations of
NFPA54, CAN/CGA B149.1 and 2,
Installation Code, must also be observed.
If these instructions are not followed
exactly, a fire, explosion or release of
carbon monoxide may occur with serious
property damage or loss of life and serious
injury. The heating contractor is liable for
correct conversion of the heating system
with this conversion kit.
CAUTION!
Before converting the heating system to a
different type of gas the gas line must first
be shut off and then the power to the
heating system must be disconnected.
Note: Please keep these instructions for future reference.

Buderus Logano G334 X Specifications

General

Brand	Buderus
Model	Logano G334 X
Category	Boiler
Language	English

Summary

Safety Information

Correct Use of Conversion Set

Defines the intended use of the conversion set for G334X heaters from natural gas to propane.

Understanding Notes Structure

Explains additional symbols used for identifying dangers and user instructions within the manual.

Observe Safety Notes

Warns about explosion risk from flammable gases and requires licensed personnel for gas line work.

Scope of Delivery

Propane Conversion Procedure

Safety and Initial Steps

Details mandatory safety precautions and initial steps for converting the boiler from natural gas to propane.

Replacing Gas Orifices

Instructions for removing and installing new main gas orifices and adjusting the gas valve.

Disconnecting Gas Lines and Burner

Procedures for disconnecting pilot burner gas line, ignition cable, and gas supply line.

Installing New Orifices

Guidance on installing new main gas orifices and checking sizes based on boiler model.

Pilot Burner and Reassembly

Instructions for handling the pilot burner, reassembling the gas burner, and connecting various lines.

Final Labeling

Details on filling out and attaching the conversion label to the boiler jacket.

Leak Testing and Pressure Measurement

Steps for performing a leak test using soap solution and measuring gas supply and manifold pressures.

Start-up Instructions

Safety and Explosion Warnings

Crucial safety warnings and procedures to follow if gas odor is detected or if the unit is submerged.

Preparing Boiler for Operation

Steps to prepare the boiler for operation, including leak test confirmation and opening the main gas valve.

Aquastat Control Startup

Procedure for starting the heating system when controlled by the factory-installed aquastat.

Logamatic 2107 Control Startup

Instructions for starting the heating system with the optional Logamatic 2107 control.

Initial Startup Procedures

General procedures to follow for startup, including observing the igniter through the sight glass.

Pilot and Main Burner Ignition

Steps for igniting the pilot and main burners, checking for leaks, and ensuring proper flame.

Gas Pressure Adjustments

Procedures for checking and adjusting gas supply and manifold pressures according to specified values.

Pilot Flame Adjustment

Guidelines for adjusting the pilot flame size and ensuring it envelops the flame guard properly.

Main Burner Flame and Safety Checks

Procedures for observing the main burner flame, testing the ignition safety switch, and verifying gas valve operation.

Final Shutdown and Leak Checks

Steps for turning off the gas valve, closing the shut-off valve, and re-checking screw plugs for leaks.

Aquastat Function Test

Verifying the function of the maximum aquastat to ensure it switches off the boiler at the set temperature.

Logamatic 2107 Final Setting

Setting the Logamatic 2107 control to automatic mode after completing the conversion and startup.