Dayton 7D837A Troubleshooting Guide download pdf

In locations used for the storage of combustible materials,

signs must be posted to specify the maximum permissible

stacking height to maintain the required clearances from the

heater to the combustibles. Signs must either be posted

adjacent to the heater thermostats or in the absence of such thermostats, in a

conspicuous location.

Keep these instructions for future reference.

Please read and save these instructions. This heater must be installed and serviced by trained gas installation and service

personnel only! Read carefully before attempting to assemble, install, operate or maintain the product described. Protect

yourself and others by observing all safety information. Failure to comply with instructions could result in personal injury

and/or property damage! Retain these instructions for future reference.

Form 5S6496 Printed in U.S.A.

03460

1109/224/VCPVP

Dayton Tube Heaters

Description

Dayton tube heaters are gas-ﬁred infrared heaters designed to provide comfort heat.

They consist of three (3) main components: a burner control box, radiant tube, and

reﬂector assembly. The heaters are typically suspended from the ceiling by chains

and controlled by a thermostat. They can be installed either vented or unvented,

and may use outside air for combustion if necessary. The radiant tube may be

installed in different conﬁgurations depending on the heating requirements.

These heaters use infrared energy to heat spaces. When heat is required, the

burner control box ignites a gas/air mixture and pushes the hot gases into the

radiant tube. As the gases pass through the assembly, the tubing is heated

and emits infrared, which is then directed toward the ﬂoor by reﬂectors. This is

known as primary infrared and is absorbed by the ﬂoor, objects and people in

the space, raising their temperatures. They in turn re-radiate this heat, known

as secondary infrared, to create a comfort zone at the ﬂoor level. This is how

Dayton tube heaters can heat large spaces without having to provide primary

infrared for every square foot of area. However, if the goal is to spot heat a

small area within a large space, only the primary infrared makes this possible.

Dayton tube heaters are design certiﬁed for use in industrial and commercial

buildings, such as warehouses, manufacturing plants, aircraft hangars and

vehicle maintenance shops. They are not certiﬁed for residential use or where

ﬂammable gases or vapors are generally present, such as spray booths.

• Do not try to light any appliance.

• Immediately call your gas supplier

from a neighbor’s phone.

• Do not touch any electrical switch.

• Follow the gas supplier’s

instructions.

• Do not use any phone in your

building.

• If you cannot reach your gas

supplier, call the ﬁre department.

For Your Safety - If you smell gas:

WARNING

Improper installation,

adjustment,

alteration, service or

maintenance can

cause property

damage, injury or death. Read and

understand the installation,

operating and maintenance

instructions thoroughly before

installing or servicing this

equipment.

This heater must be installed and

serviced by trained gas installation

and service personnel only. Failure

to comply could result in personal

injury, asphyxiation, death, ﬁre and/

or property damage.

WARNING

7D837A thru 7D849A, 7D851A,

7AR79 thru 7AR88

Installation, Operation, Maintenance and Parts Manual

1 2 3 4 5 6 ... 39 40

Summary of Contents

Page 1 - Dayton Tube Heaters

In locations used for the storage of combustible materials, signs must be posted to specify the maximum permissible stacking height to maintain the re

Page 2

Dayton Installation, Operation, Maintenance and Parts ManualDayton Tube Heaters®7D837A thru 7D849A, 7D851A, 7AR79 thru 7AR88Recommended Mounting Heigh

Page 3 - INTRODUCTION

Dayton Installation, Operation, Maintenance and Parts Manual Models 7D837A thru 7D849A, 7D851A, 7

Page 4

16” Burner TubeDayton Installation, Operation, Maintenance and Parts ManualDayton Tube Heaters®7D837A thru 7D849A, 7D851A, 7AR79 thru 7AR8810 ft. Prim

Page 5

Dayton Installation, Operation, Maintenance and Parts Manual Models 7D837A thru 7D849A, 7D851A, 7

Page 6

Dayton Installation, Operation, Maintenance and Parts ManualDayton Tube Heaters®7D837A thru 7D849A, 7D851A, 7AR79 thru 7AR88For 45° hanging angle use

Page 7 - Clearance to Combustibles

Dayton Installation, Operation, Maintenance and Parts Manual Models 7D837A thru 7D849A, 7D851A, 7

Page 8

Dayton Installation, Operation, Maintenance and Parts ManualDayton Tube Heaters®7D837A thru 7D849A, 7D851A, 7AR79 thru 7AR883. Slip-ﬁt the radiant tu

Page 9 - Design Scenario

Dayton Installation, Operation, Maintenance and Parts Manual Models 7D837A thru 7D849A, 7D851A, 7

Page 10 - Dayton Tube Heaters

Dayton Installation, Operation, Maintenance and Parts ManualDayton Tube Heaters®7D837A thru 7D849A, 7D851A, 7AR79 thru 7AR88Suspending the burner cont

Page 11

To install the reﬂectors:1. Attach reﬂector center supports onto radiant tubes.2. Slide each reﬂector section through the hangers and adjust the reﬂ

Page 12

Dayton Installation, Operation, Maintenance and Parts ManualDayton Tube Heaters®7D837A thru 7D849A, 7D851A, 7AR79 thru 7AR88TABLE OF CONTENTS INTRODU

Page 13

Figure 2.17 • Reﬂector Shield AccessoriesSide shield extension (P/N: 5VD86)Directs infrared rays downward, away from sidewalls and combustibles. Elbow

Page 14

21Bafﬂe Assembly and PlacementFigure 2.18 • Assembling the BafﬂesFigure 2.19 • Inserting the BafﬂesTo insert the bafﬂes: 1. Insert bafﬂes with the ke

Page 15 - Radiant Tube Assembly

22Final Heater AssemblyFigure 2.20 • Secured Reﬂector Joints and Bafﬂe LocationDifferent inputs and models utilize different bafﬂe lengths. Remove al

Page 16

23Dayton Installation, Operation, Maintenance and Parts Manual Models 7D837A thru 7D849A, 7D851A,

Page 17

Dayton Installation, Operation, Maintenance and Parts ManualDayton Tube Heaters®7D837A thru 7D849A, 7D851A, 7AR79 thru 7AR88Sidewall VentingGuidelines

Page 18

Dayton Installation, Operation, Maintenance and Parts Manual Models 7D837A thru 7D849A, 7D851A, 7

Page 19 - Reﬂector Assembly

Figure 2.24 • Common Rooftop Venting - Side ViewCommon Venting • A dual exhaust assembly (P/N: 3F817) must be used when joining two heaters to a comm

Page 20

Optional Unvented OperationWhen installing in an un-vented conﬁguration:• A factory supplied vent cap/diffuser (P/N: 3F839) must be used.• Ventilati

Page 21 - Bafﬂe Assembly and Placement

Combustion Air RequirementsNOTICEThis heater has a factory preset air oriﬁce for proper combustion air supply. If using combustion air intake from in

Page 22

Dayton Installation, Operation, Maintenance and Parts Manual Models 7D837A thru 7D849A, 7D851A, 7

Page 23 - Venting Requirements

Dayton Installation, Operation, Maintenance and Parts Manual Models 7D837A thru 7D849A, 7D851A, 7

Page 24

Dayton Installation, Operation, Maintenance and Parts ManualDayton Tube Heaters®7D837A thru 7D849A, 7D851A, 7AR79 thru 7AR88WARNING!!Improperly connec

Page 25 - Roof Venting

Gas ConnectionThis heater must be installed and service by trained gas installation and service personnel only.31Dayton Installation, Operation, Maint

Page 26

12”Stainless Steel Gas Connector, formed into smooth C-Shape Adapter2” max displacementDrip Leg/Sediment TrapHeater Movement AdapterBurner Control Box

Page 27 - Optional Unvented Operation

120V-60 Hz.SupplyNOTE: Up to 4 line voltage tube heaters can be wired to most thermostats. TL1NeutralGroundHeaters on the same vent must share the s

Page 28

Dayton Installation, Operation, Maintenance and Parts ManualDayton Tube Heaters®7D837A thru 7D849A, 7D851A, 7AR79 thru 7AR88Internal Wiring DiagramsFi

Page 29 - Combustion Air Requirements

Dayton Installation, Operation, Maintenance and Parts Manual Models 7D837A thru 7D849A, 7D851A, 7

Page 30

Dayton Installation, Operation, Maintenance and Parts ManualDayton Tube Heaters®7D837A thru 7D849A, 7D851A, 7AR79 thru 7AR88Routine Inspection36WARNIN

Page 31 - Gas Connection

Dayton Installation, Operation, Maintenance and Parts Manual Models 7D837A thru 7D849A, 7D851A, 7

Page 32

38Dayton Installation, Operation, Maintenance and Parts Manual 7D837A thru 7D849A, 7D851A, 7AR79 thru 7AR88For Repair Pa

Page 33 - Electrical Requirements

• Conversions from natural gas to LP gas require the use of one TP-241 and one TP-204-Size and TP-114-Size.• Conversions from LP gas t

Page 34

NOTICEWARNING!!CAUTIONWARNING!!!WARNING!!Dayton Installation, Operation, Maintenance and Parts ManualDayton Tube Heaters®7D837A thru 7D849A, 7D851A, 7

Page 35 - Operation

Dayton Installation, Operation, Maintenance and Parts ManualDayton Tube Heaters®7D837A thru 7D849A, 7D851A, 7AR79 thru 7AR88Dayton One-Year Limited Wa

Page 36

Dayton Installation, Operation, Maintenance and Parts Manual Models 7D837A thru 7D849A, 7D851A, 7

Page 37 - Troubleshooting Guide

Dayton Installation, Operation, Maintenance and Parts ManualDayton Tube Heaters®7D837A thru 7D849A, 7D851A, 7AR79 thru 7AR88Fire Hazard. Always maint

Page 38 - -Serial number (if any)

Dayton Installation, Operation, Maintenance and Parts Manual Models 7D837A thru 7D849A, 7D851A, 7

Page 39

Dayton Installation, Operation, Maintenance and Parts ManualDayton Tube Heaters®7D837A thru 7D849A, 7D851A, 7AR79 thru 7AR88InstallationDesign Conside

Page 40

Dayton Installation, Operation, Maintenance and Parts Manual Models 7D837A thru 7D849A, 7D851A, 7

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Dayton 7D837A Troubleshooting Guide

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