RBI FUTERA III Series User Manual

4/12 Copyright 2012 Mestek, Inc.
FTIII-I0M-HN-4
82-0300
Boiler manual
Installation and operation
instructions
Also read and follow:
HeatNet® Control Manual
 is manual is intended only for use by a quali ed heating installer/technician. Read and follow this manual, all supplements and related
instructional information provided with the boiler. Install, start and service the boiler only in the sequence and methods given in these
instructions. Failure to do so can result in severe personal injury, death or substantial property damage.
Do not use the boiler during construction. Construction dust and particulate, particularly drywall dust, will cause contamination
of the burner, resulting in possible severe personal injury, death or substantial property damage.  e boiler can only be operated with
a dust-free air supply. Follow the instruction manual procedures to duct air to the boiler air intake. If the boiler has been contaminated
by operation with contaminated air, follow the instruction manual guidelines to clean, repair or replace the boiler if necessary.
A x these instructions near to the boiler. Instruct the building owner to retain the instructions for future use by a quali ed service
technician, and to follow all guidelines in the User’s Information Manual.
Finned copper tube
Gas boilers (MB) &
Water heaters (MW)

RBI FUTERA III Series Specifications

General

Brand	RBI
Model	FUTERA III Series
Category	Boiler
Language	English

Summary

Before You Start

Ratings & Capacities

Ensures the unit is properly sized for the job and configured for available gas.

Boiler/Water Heater Location

Provides guidelines for selecting a safe and accessible installation site.

Combustion Air & Ventilation

All Air From Inside The Building

Details requirements for air supply when the unit is located in a confined space.

All Air From Outside The Building

Specifies requirements for air supply ducted directly from outdoors.

General Venting Guidelines

Vent System Options

Describes the different venting configurations available for the boiler.

Direct Vent, Positive Pressure, Category IV

Horizontal Direct Vent Systems

Installation and termination guidelines for horizontal venting.

Side Wall Vent, Positive Pressure, Category IV

Vertical Vent, Negative Pressure, Category II

Vertical Vent, Positive Pressure, Category IV

Outdoor Venting

Guidelines for installing the unit in an outdoor environment.

Common Vent Systems

General Piping Requirements

Freeze Protection

Mandatory precautions to prevent freezing damage to the unit.

Valve

Instructions for installing the pressure relief valve discharge.

Flow Switch

Guidance on the proper installation of the flow switch.

Heating System Piping

Heating Boiler Piping Connections

Details on sizing supply and return connections for boiler piping.

Pump Requirements

Information on sizing the system pump for proper operation.

Domestic Water Supply Piping

Water Chemistry

Considerations for water hardness and pH impacting performance.

Pump Requirements

Guidance on pump selection for water heater operation.

Temperature Rise Control

Methods to prevent condensation and damage from low return temperatures.

Gas Supply Piping

Electrical Wiring

Electrical Power Connections

Instructions for making safe and compliant electrical connections.

General Operation

Hydronic Heating Boilers

Specific operation procedures for hydronic heating systems.

Operating Instructions

Operating Instructions

Step-by-step guide for safe initial operation and shutdown.

Sequence of Operation

Pilot Run - % Input

Describes the pilot ignition sequence and input settings.

Main Run % Input

Details the main burner operation sequence and input adjustments.

Checking & Adjustments

Spark Gap

Procedure for checking and adjusting the spark gap for ignition.

Pilot Adjustment

Steps to check and adjust pilot gas pressure.

Required Gas Pressure

Specifies the necessary gas supply pressure for proper operation.

RBI Field Wiring to HeatNet Board

Control Description

Low Water Cutoff

Function and installation of the low water cutoff device.

Operating Control

Guidance on setting the operating control for desired temperatures.

High Limit (Aquastat)

Description of the high limit control and its function.

Flow Switch

Explanation of the flow switch's role in operation.

Diagnostics

Status Screen Fault Display

Overview of how fault messages are displayed on the unit.

Fault Displays

Details specific fault messages and their meanings for troubleshooting.

Maintenance

Burner Removal

Step-by-step instructions for removing the burner assembly.

Heat Exchanger Cleaning

Procedure for cleaning the heat exchanger for optimal performance.

Heat Exchanger Repair & Replacement

Guidelines for repairing or replacing the heat exchanger.

Air Intake & Vent System

Instructions for inspecting and maintaining air intake and vent systems.

Troubleshooting A Startup

Repair Parts

Start-Up Report

Pre-Startup Check List

A checklist of items to verify before initial boiler startup.

Boiler Startup Sequence

Step-by-step procedure for initiating boiler operation.

Commonwealth of Massachusetts Installation Requirements

Limited Warranty

Boilers/Water Heaters Industrial, Commercial and Other Non-Residential Use

Details the warranty coverage for industrial and commercial units.