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Lochinvar FTXL 1000 User Manual

Lochinvar FTXL 1000
75 pages
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Installation & Operation Manual
Model: 1000
is manual must only be used by a
qualied heating installer / service
technician. Read all instructions,
including this manual and the FTXL
Service Manual, before installing.
Perform steps in the order given.
Failure to comply could result in
severe personal injury, death, or
substantial property damage.
WARNING
Save this manual for future reference.
FTXL-I-O_100361229_2000617079_Rev A
2000603369 00

Table of Contents

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Lochinvar FTXL 1000 Specifications

General IconGeneral
BrandLochinvar
ModelFTXL 1000
CategoryBoiler
LanguageEnglish

Summary

Hazard Definitions

Please Read Before Proceeding

Installer and User Responsibilities

Instructions for installers and users regarding safety and compliance.

Boiler Operation and Maintenance Precautions

Guidelines for safe boiler operation, servicing, and freeze protection.

Ratings

Boiler Specifications and Certifications

Technical details, ratings, and certifications of the FTXL boiler.

1 Determine Boiler Location

Location, Clearances, and Air Openings

Requirements for boiler placement, clearances, and air supply openings.

Existing Vent System and Contaminants

Procedures for using existing vents and identifying air contaminants.

Common Vent System Procedures

Steps for removing a boiler from or using an existing common vent system.

2 Prepare Boiler

Boiler Removal and Gas Conversion

Steps for removing the boiler and converting it to different gas types.

3 General Venting

Venting Options and Installation

Direct sidewall and vertical venting methods and installation guidance.

Vent Pipe Materials and Sizing

Approved materials for air inlet pipes and vent/air piping sizing requirements.

Common Venting and Vent Material Installation

Guidelines for common venting and installing PVC/CPVC vent systems.

Polypropylene and Stainless Steel Venting

Approved materials and installation for polypropylene and stainless steel vents.

4 Sidewall Direct Venting

Sidewall Vent/Air Termination and Location

Requirements and considerations for sidewall vent/air terminations.

Wall Penetration Preparation

Steps for creating and sealing wall penetrations for vent and air piping.

5 Vertical Direct Venting

Vertical Vent/Air Termination and Location

Guidelines and considerations for vertical vent/air terminations.

Roof Penetration Preparation

Steps for creating and sealing roof penetrations for vent and air piping.

6 Hydronic Piping

Piping Methods and Freeze Protection

System piping methods, freeze protection fluids, and water quality.

Relief Valve and Gauge Installation

Procedures for installing pressure relief valve and temperature/pressure gauge.

Near Boiler Piping Components

Detailed list and description of components used in near-boiler piping.

Pump Options and Control Signals

Setup for variable speed pumps and control signal inputs for heating demands.

Multiple Boiler Piping Diagrams

Diagrams illustrating piping configurations for multiple boilers in primary systems.

7 Gas Connections

Connecting Gas Supply Piping

Instructions and safety for connecting the gas supply to the boiler.

Gas Pressure Requirements

Specifications for natural gas and propane pressure at the boiler inlet.

Inlet Gas Supply Check

Step-by-step guide to checking gas supply integrity and pressure.

8 Field Wiring

Power and Low Voltage Wiring

Instructions for connecting line voltage power and low voltage controls.

Sensor and Switch Connections

How to connect various sensors and switches to the control module.

Boiler Management System and Cascades

Connecting external controls for boiler management and cascade operation.

9 Condensate Disposal

Condensate Drain System Installation

Procedures for installing the condensate drain, trap, and neutralization.

10 Start-up

Pre-Commissioning and Water Quality Checks

Steps for cleaning the system and ensuring proper water quality before startup.

Freeze Protection and System Purge

Procedures for using freeze protection fluids and purging air from the water system.

Final Checks and Boiler Startup

Checklist of final inspections and the sequence to start the boiler.

Flame and Combustion Analysis

How to perform and interpret combustion analysis for optimal performance.

Adjusting Set Point Temperatures

Guide to setting and adjusting system temperature targets via the control panel.

Domestic Hot Water Operation Setup

Configuration for DHW modes, fan speed limits, and clock settings.

11 Operating Information

Boiler and Control System Operation

Overview of the boiler's functions and the SMART SYSTEM control.

Temperature Control and Limits

How the control module manages temperature, including limits and delays.

Boiler Protection Features

Details on safety features like freeze protection and low voltage lockout.

Boiler Temperature Regulation and High Limits

How the boiler regulates temperature and manages high limit conditions.

Cascade and DHW Priority

Information on cascading boilers and prioritizing DHW calls within a system.

Sequence of Operation

A detailed step-by-step breakdown of the boiler's operating cycle.

SMART SYSTEM Control Module Interface

Explanation of the control panel's navigation, status, and sensor sections.

12 Maintenance

Maintenance and Annual Startup Schedule

Schedules and procedures for routine maintenance and annual startup.

Boiler Inspection and Cleaning

Procedures for inspecting the boiler area, interior, and cleaning the condensate trap.

Flue, Water, and Relief Valve Checks

Inspecting flue/air piping, water system, and checking the relief valve.

Ignition and Wiring Checks

Inspecting ignition/flame electrodes, ground wiring, and boiler wiring.

Flame Signal and Burner Cleaning

Checking flame signal, cleaning the heat exchanger and burner assembly.

13 Diagrams

Wiring Diagram

A detailed electrical wiring diagram for the boiler system components.

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