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Temp-Heat THP-550 - User Manual

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Installation and Service Manual
THP-400A, THP-500A and THP-550
Gas, Direct-Fired Process Heater
1-800-836-7432
Heating
Cooling
Dehumidifying
Ventilating
For your safety,
do not use this heater in a
space where gasoline or
other liquids having
flammable vapors are
stored or used.
Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Rating Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Control Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Fuel Supply System Bulk-Tank System . . . . . . . . . . . . . . . . . . . . . . . . . .7
Natural-Gas Installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Set-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Preliminary Start-Up Steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Control Vestibule Layouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Start-Up Steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Shut-Down Steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Short-Term . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Long-Term or Disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Wiring Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Control Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Ignition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Airflow Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Setting Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
To Check Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
This manual is the property of the
owner. Leave with the unit when
set-up and start-up are complete.
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Summary

Safety Warnings

General Hazard Warning

Precautions for safe operation, potential hazards like fire, explosion, burn, asphyxiation.

Fire and Vapor Hazards

Keep combustibles away, avoid volatile vapors.

Usage Limitations

Heater usage restrictions and consultation with local authorities.

Introduction to TEMP-HEAT Heaters

Heater Rating Information

Heater Control Functions

Fuel Supply System

Propane Bulk-Tank System

Installation requirements and guidelines for propane bulk tank systems.

Natural Gas Installation Guidelines

Heater Setup Procedures

Preliminary Start-Up Procedures

Control Vestibule Layouts

THP-400 A Vestibule Diagram

Diagram of control vestibule components for THP-400A.

THP-500 A Vestibule Diagram

Diagram of control vestibule components for THP-500A.

THP-550 Control Vestibule Diagram

THP-550 Vestibule Diagram

Diagram of control vestibule components for THP-550.

Heater Start-Up Steps

Heater Shut-Down Procedures

Short-Term Shut Down

Procedure for temporarily turning off the heater.

Extended Shut-down or Disconnection

Steps for long-term storage or disconnecting the heater.

Wiring Diagram - THP-400 A

THP-400 A Sequence of Operation

Wiring Diagram - THP-500 A

THP-500 A Sequence of Operation

Wiring Diagram - THP-550

THP-550 Sequence of Operation

Heater Troubleshooting Guide

Control Adjustments

Ignition System Adjustments

Procedures for cleaning, adjusting, and maintaining the ignition system.

Air-Flow Control Adjustment

Instructions for setting and checking the airflow control mechanism.

Temp-Heat THP-550 Specifications

General IconGeneral
BrandTemp-Heat
ModelTHP-550
CategoryGas Heater
LanguageEnglish

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