BRANT RADIANT FA User Manual

Detroit Radiant Products Company

!

FA Series Manual

Installation, Operation,

Maintenance and Parts

The FA Series heater is a gas-fired unit heater. This manual provides specific information related to the
FA Series models. All persons involved with the installation, operation and maintenance of the heater
system must read and understand the information in this manual.

Improper installation, adjustment, alteration, service or maintenance can cause
property damage, serious injury or death. Read and understand the installation,
operating and maintenance instruction 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,
and fire or property damage.

Do not store or use gasoline or other flammable vapors and liquids in the vicinity of
this or any appliance.

Do not use this heater in indoor living or sleeping quarters! Installation of this unit in
a residential indoor living space may result in property damage, serious injury,
asphyxiation or death.

For Your Safety

If you smell gas:

• Open windows.

• Do not touch any electrical switch.

• Extinguish any open flame.

• Do not use any phone in your building.

WARNING

• Immediately call your gas supplier from a neighbor’s phone.

• Follow the gas supplier’s instructions.

• If you cannot reach your gas supplier, call the fire department.

INSTALLER: Present this manual to the end user.

Keep these instructions in a clean and dry place for future reference.

Model#: ___________________ Serial #: _________________________

(located on rating label)

LIOFA-Rev. 00413

Print: 1M-8/13_r1-5/14(CDS)

Table of Contents

FA Series

Contents

1.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Overview............................................................... 3

Heater Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Initial Installation Considerations and Pre-Checks ............................... 4

Product Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Safety Labels and Their Locations ........................................... 6

2.0 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Warning Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Standards, Certifications and Government Regulations........................... 9

Clearance to Combustibles ................................................ 11

3.0 Inst allation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Recommended Mounting Heights ........................................... 13

Gas Supply Installation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Leak Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Electrical Requirements and Wiring Diagrams .................................. 18

Internal Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Field Wiring Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Thermostat Connection ................................................... 21

Thermostat Location...................................................... 22

Venting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Replacing Existing Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

General Venting Requirements.............................................. 24

Vertical Venting (Category I)................................................ 26

Horizontal Venting (Category III)............................................. 27

Common Venting (Category I) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Concentric Venting ....................................................... 30

Combustion Air Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Separated Combustion Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Room Air Combustion Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Unit Start-Up (Commissioning) .............................................. 34

Pre-Start Up Checks...................................................... 34

Verify Proper Inlet Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Verify Manifold Pressure................................................... 36

Prior to leaving the Job Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

High Altitude Operation.................................................... 38

4.0 Operation..............................................................40

Sequence of Operation.................................................... 40

Shutdown Procedures..................................................... 41

Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

5.0 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Heater Assembly Components and Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Maintenance Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Limited Warranty Terms and Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Kit Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

2

FA Series

1.0 Introduction • Overview • Heater Components

1.0 Introduction

Overview

The intent of this manual is to provide information regarding safety, design guidelines, installation,
operation and maintenance of the FA Series gas-fired unit heater. You must read and understand the
instructions and all safety warnings before installing the gas-fired unit heater. This manual is property of
the owner, and must stay with the owner or unit after installation is complete.

Heater Components

Prior to installation, verify that the heater’s gas type and voltage (as listed on the rating plate) match
that of your application. Also verify that you have received the entire heater contents included with your
unit. Refer to page 56 for a list of the kit contents for your heater. Materials not included with the unit
(e.g. screws, vent material, threaded rod, etc.) are the responsibility of the installer. Notify your product
representative or the factory of any discrepancy of missing items prior to installing the unit.

Figure 1.1 • Heater Subcomponents

Flame Sensor

Louvers

High Limit

Switch

Flame Rollout
Switches

Gas Valve

Draft Inducer

Spark

Igniter

Direct Spark

Igniter Board

Pressure
Switch

Control
Transformer

3

!

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1.0 Introduction • Initial Installation Considerations and Pre-Checks

FA Series

Initial Installation Considerations and Pre-Checks

WARNING

Improper installation, adjustment, alteration, service or maintenance can cause
property damage, serious injury or death. Read and understand the installation,
operating, and maintenance instructions thoroughly before installing or servicing this
equipment. Only a trained, qualified installation or service personnel may install or
service this equipment.

Placement of the heater is influenced by many factors. Aside from safety factors, considerations for
the general space and heating requirements, availability of gas and electrical supply, and proximity of
possible vent locations are a few examples of factors that should all be considered.

Inspect and evaluate the location of the heater to ensure that the structural support is adequate to
support the unit’s weight. The unit must be installed in a horizontally level position to ensure proper
operation. To reduce noise attenuation along the structure caused by vibration of the unit, the heater
should be installed within 15 feet of a primary building support. In the cases where this installation is
not practical or feasible, the use of spring vibration isolators may be used, so long as they are rated for
use of the unit’s weight (see Chart 1.1).

Adequate space around the heater must also be considered in order to maintain the published
minimum clearance to combustibles and recommended service clearances.

When designing a unit heater system, consider the following:

• Has the building’s heat loss been evaluated?

• Does the design meet the needs of the space?

• Have the recommended mounting heights been observed?

WARNING

Do not locate any gas-fired units in area where chlorinated, halogenated, or acid vapors are
present in the atmosphere. These substances can cause premature heat exchanger failure due
to corrosion, which can cause property damage, serious injury or death.

4

FA Series

1.0 Introduction • Product Specifications

Product Specifications

The FA Series unit heater is a single input warm air heater with an average thermal efficiency of 80%,
unless otherwise indicated on the rating label. All units are to be supplied with single-phase 60 Hz
120VAC power. The exterior of all models are finished with industrial-grade colored enamel. For specific
information on each model, see Chart 1.1, below.

Chart 1.1 • Specifications

Model Number

FA-10 0

FA-125

FA-15 0

FA-175

FA-20 0

FA-225

FA-250

Cabinet Number

Gas Type

Nat or

3

LP

Nat or

3

LP

Nat or

4

LP

Nat or

4

LP

Nat or

4

LP

Nat or

5

LP

Nat or

5

LP

BTU/h Input

100,000 80,000

125,000 100,000

150,000 120,000

175,000 140,000

200,000 160,000

225,000 180,000

250,000 200,000

BTU/h Output

Physical

40” W

20” D
21” H

40” W

20” D
21” H

40” W

20” D
27” H

40” W

20” D
27” H

40” W

20” D
27” H

40” W

20” D
30” H

40” W

20” D
30” H

Dimensions

118

Lbs.

118

Lbs.

159

Lbs.

159

Lbs.

159

Lbs.

176

Lbs.

176

Lbs.

Standard Weight

Recommended

Mounting Height*

12'-14'

14'-16 '

14'-16 '

15' -17 '

15' -17 '

16'-18'

16'-18'

Gas Connection

1/2"

NPT

1/2"

NPT

1/2"

NPT

1/2"

NPT

1/2"

NPT

3/4"

NPT

3/4"

NPT

Vent Connection

Inlet Connection

Axial Fan

4” 4” CCW

4” 4” CCW

6” 6” CCW

6” 6” CCW

6” 6” CCW

6” 6” CCW

6” 6” CCW

Rotation

Primary Voltage

Thermostat

Voltage

120

VAC

120

VAC

120

VAC

120

VAC

120

VAC

120

VAC

120

VAC

24

VAC

24

VAC

24

VAC

24

VAC

24

VAC

24

VAC

24

VAC

* Recommended mounting heights are provided as a guideline. Actual conditions may dictate variations
from the above data. Clearance to combustibles must always be maintained.

Figure 1.2 • Dimensional Data (see Chart 1.1 for Physical Dimensions)

Top View

D

w

5

ReaR View

H

w

1.0 Introduction • Safety Labels and Their Locations

[phone] - www.drp-co.com

FA Series

Safety Labels and Their Locations

Product safety signs or labels should be replaced by the product user when they are no longer legible.
Contact either your local distributor or product manufacturer for obtaining replacement signs or labels.

F/N: LLUH002 - Do Not Touch

SEPARATED COMBUSTION SYSTEM UNIT HEATER

MODEL NUMBER

NUMÉRO DE MODÈLE

TYPE OF GAS

TYPE DE GAZ

HEAT INPUT

DEBIT CALORIFIQUE

HEAT OUTPUT

REDENMENT

VENT CATAGORY

ÉVENT CATÉGORIE

THIS DESIGN COMPLIES WITH UNIT HEATER STANDARD:

ANSI Z83.8b-2006 • CSA2.6B-2006 UNIT HEATER

TOP

HAUT

DETROIT RADIANT PRODUCTS COMPANY
21400 HOOVER ROAD - WARREN, MI 48089
[phone] - www.drp-co.com

AÉROTHERME À SYSTÈME DE COMBUSTION ISOLÉ

SERIAL NUMBER

NUMÉRO DE SÉRIE

FA-200N

NATURAL

200,000

160,000

CATAGORY III

DÉGAGEMENT MINIMUM POUR MATIÉRES COMBUSIBLES

RIGHT SIDE

BOTTOM

BAS

COTÉ DROIT

INCH

INCH

1 1 1 6

1

YYMMREPCSHIPPE#### 09/12

MANIFOLD PRESSURE

PRESSION A LA TUBULURE D'ALIMENTATION

MAXIMUM INLET PRESSURE

PRESSION D'ALIMENTATION MAXIMALE

BTU/h

MINIMUM INLET PRESSURE FOR PURPOSE OF ADJ.

PRESSION D'ALIMENTATION EN GAS MIN. ADMISE

BTU/h

ORIFICE SIZE

DIM DE L'INJECTEUR

SAMPLE

MINIMUM CLEARANCE TO COMBUSTIBLE MATERIAL

LEFT SIDE

COTÉ GOUCHE

INCH INCH INCH INCH

INCHES W.C.

14.0

INCHES W.C.

INCHES W.C.

5.0

NATURAL GAS PROPANE GAS

D.M.S. D.M.S.

57

49

VENT CONNECTOR

CONNECTEUR D'AERATION

FOR COMMERCIAL / INDUSTRIAL USE.

FOR INDOOR USE ONLY.

Rating Label (Inside of Panel)

VOLTAGE

AMPS

PHASE

FREQUENCY

LABEL REVISION

MADE IN U.S.A.

VERSION

1203.5

SINGLE

SERVICE ACCESS

COTÉ ACCÉDEZ

VAC

2.4

Hz

60

Front View

A

18

F/N: LLUH004 - Air In

F/N: LLV3EP6 - Gas Valve and

Pressure Switch Operation

SEPARATED COMBUSTION SYSTEM UNIT HEATER

AÉROTHERME À SYSTÈME DE COMBUSTION ISOLÉ

MODEL NUMBER

SERIAL NUMBER

NUMÉRO DE MODÈLE

NUMÉRO DE SÉRIE

FA-200N

YYMMREPCSHIPPE#### 09/12

MANIFOLD PRESSURE

TYPE OF GAS

TYPE DE GAZ

PRESSION A LA TUBULURE D'ALIMENTATION

NATURAL

HEAT INPUT

MAXIMUM INLET PRESSURE

DEBIT CALORIFIQUE

PRESSION D'ALIMENTATION MAXIMALE

200,000

BTU/h

HEAT OUTPUT

MINIMUM INLET PRESSURE FOR PURPOSE OF ADJ.

REDENMENT

PRESSION D'ALIMENTATION EN GAS MIN. ADMISE

160,000

BTU/h

ORIFICE SIZE

VENT CATAGORY

DIM DE L'INJECTEUR

ÉVENT CATÉGORIE

CATAGORY III

THIS DESIGN COMPLIES WITH UNIT HEATER STANDARD:

ANSI Z83.8b-2006 • CSA2.6B-2006 UNIT HEATER

MINIMUM CLEARANCE TO COMBUSTIBLE MATERIAL

DÉGAGEMENT MINIMUM POUR MATIÉRES COMBUSIBLES

TOP

LEFT SIDE

RIGHT SIDE

BOTTOM

HAUT

BAS

COTÉ DROIT

COTÉ GOUCHE

INCH

INCH INCH INCH INCH

INCH

1 1 1 6

1

DETROIT RADIANT PRODUCTS COMPANY
21400 HOOVER ROAD - WARREN, MI 48089

F/N: LLUH005

Vent Out

VERSION

VOLTAGE

VAC

INCHES W.C.

1203.5

AMPS

2.4

14.0

INCHES W.C.

PHASE

SINGLE

INCHES W.C.

5.0

NATURAL GAS PROPANE GAS

FREQUENCY

D.M.S. D.M.S.

Hz

57

49

60

LABEL REVISION

A

VENT CONNECTOR

SERVICE ACCESS

CONNECTEUR D'AERATION

COTÉ ACCÉDEZ

18

FOR COMMERCIAL / INDUSTRIAL USE.

FOR INDOOR USE ONLY.

MADE IN U.S.A.

Rear View

6

FA Series

F/N: LLUH007
FA Vent Length Notice

1.0 Introduction • Safety Labels and Their Locations

F/N: LLWUH001 - Wiring Diagram

F/N: LLUHCL001
For Your Safety

F/N: LLUH001 - LED Status

Service Access Door View

(Inside View)

7

2.0 Safety • Warning Symbols • Applications

!

!

!

!

FA Series

2.0 Safety

Read and understand all safety information and warnings in this manual prior to installation, operation,
and maintenance of this unit heater. Warnings indicate a potentially hazardous situation which, if not
avoided, could result in death or injury.

WARNING

Improper installation, adjustment, alteration, service or maintenance can cause property
damage, serious injury or death. Read and understand the installation, operating and
maintenance instructions thoroughly before installing or servicing this equipment. Only
trained qualified gas installation and service personnel may install or service this
equipment.

Warning Symbols

Safety is the most important consideration during installation, operation and maintenance of the unit
heater. You will see the following symbols and signal words when there is a hazard related to safety or
property damage.

Warning indicates a potentially hazardous

WARNING

CAUTION

NOTICE

situation which, if not avoided, could result in
death or injury.

Caution indicates a potentially hazardous
situation which, if not avoided, could result in
minor or moderate injury.

Notice indicates a potentially hazardous
situation which, if not avoided, could result in
property damage.

Applications

This is not an explosion proof heater. This heater may not be used in a Class 1 or Class 2 Explosive
Environment. Consult your local Fire Marshall, insurance carrier and other authorities for approval if the
proposed installation is in question.

Commercial / Industrial

The FA Series unit heater is designed and certified for use in industrial and commercial buildings, such
as warehouses, manufacturing plants, aircraft hangars, and vehicle maintenance shops. For maximum
safety, the building must be evaluated for potential problems before installing the heater system. This
unit is certified for use as furnished by the manufacturer. Do not alter the fan or operate motors at a
reduced speed.

CAUTION

Installation of restrictive devices to the inlet or outlet of the fan motor may result in premature
failure of the exchanger pipe, overheating of the appliance, or damage to the components. Do
not attach ductwork, air filters, or poly-tubes to any FA Series unit heater.

8

FA Series

2.0 Safety • Standards, Certifications and Government Regulations

Standards, Certifications and Government Regulations

Installation of this gas-fired heater must conform with all applicable local, state and national
specifications, regulations and building codes. Contact the local building inspector and/or Fire Marshall
for guidance.

In the absence of local codes, the installation must conform to the latest edition of:

United States: National Fuel Gas Code, ANSI Z223.1 (NFPA 54).
Canada: CAN/CGA B149.1 and .2, Canadian Electrical Code C22.1

Copies of these Standards can be viewed or purchased at www.nfpa.org or www.scc.ca.

Chart 2.1 • Standard and Code Installation Guidelines • Building Type

Building

Type

Public

Garages

Aircraft

Hangars

Codes and Guidelines

Installation of this heater in public garages must conform to the following codes:

United States: Standard for Parking Structures NFPA 88A (latest edition) or the
Code for Motor Fuel Dispensing Facilities and Repair Garages
NFPA 30A (latest edition).

Canada: Refer to CAN/CGA B149.1: Installation Codes for Gas Burning Appliances
and applicable Standards for Public Garages.

Guidelines:

• Heaters must not be installed less than 8 ft. (2.4 m) above the floor. Minimum
clearances to combustibles must be maintained from vehicles parked below the
heater.

• When installed over hoists, minimum clearances to combustibles must be
maintained from the upper most point of objects on the hoist.

Installation of this heater in aircraft hangars must be in accordance with the following
codes:

United States: Refer to Standard for Aircraft Hangars, ANSI/NFPA 409
(latest edition).

In Canada: Refer to Standard CAN/CGA B149.1 and applicable Standards for
Aircraft Hangars.

Guidelines:

• In aircraft storage and servicing areas, heaters shall be installed at least 10 ft. (3 m)
from above the upper surface of wings or of the engine enclosures of the highest
aircraft that may be housed in the hangar. The measurement shall be made from
the wing or engine enclosure, whichever is higher from the floor, to the bottom of
the heater.

• In areas adjoining the aircraft storage area (e.g., shops, offices) the bottom of
heaters shall be installed no less than 8 ft. (2.4 m) above the floor.

• Suspended or elevated heaters shall be located in spaces where they shall not be
subject to damage by aircraft, cranes, movable scaffolding or other objects.

Provisions shall be made to assure accessibility to suspended heaters for recurrent
maintenance purposes.

9

2.0 Safety • Standards, Certifications and Government Regulations

Chart 2.2 • Standard and Code Installation Guidelines • Building Location

FA Series

Building

Location

High

Altitude

Non­Standard
BTU Gas

Chart 2.3 • Standard and Code Installation Guidelines • Building Aspect

Building

Aspect

Electrical

Guidelines

Installation of this heater is approved, without modifications, for elevations up to 2,000
feet (610 m) above MSL (sea level) in the United States. For elevations above 2,000
feet, the heater input must be derated. See page 38 for details on how to derate.

The type of gas appearing on the nameplate must be the type of gas used. Installation
must comply with national and local codes and requirements of the local gas company.

Guidelines:

Unless otherwise noted on the rating plate, this heater is designed and orificed to
operate on standard BTU gas. Contact the factory if utilizing non-standard BTU gas.

Codes and Guidelines

The heater must be electrically grounded in accordance with the following codes:

United States: Refer to National Electrical Code
Wiring must conform to the latest edition of National Electrical
Code®, local ordinances, and any special diagrams furnished.

Guidelines

®

, ANSI/NFPA 70 (latest edition).

Canada: Refer to Canadian Electrical Code CSA C22.1 Part 1 (latest
edition).

Venting

Applicable authorities governing the manufacturing or installation of this unit here include (but are not
limited to) the following organizations:

In the United States:

• NFPA 54 / ANSI Z223.1 – National Fuel Gas Code.

• ANSI Z83.8 / CSA 2.6 – Gas Unit Heater Construction Standard.

• ANSI/NFPA 70 - National Electric Code.

In the Canada:

• CAN/CGA B149.1-10 – Natural Gas and Propane Installation Code.

Venting must be installed in accordance with the requirements within this manual and
the following codes:

United States: Refer to NFPA 54/ANSI Z223.1 (latest edition), National Fuel
Gas Code.

Canada: Refer to CAN/CGA B149.1 Installation Codes for Gas Burning
Appliances.

• ANSI Z83.8 / CSA 2.6 – Gas Unit Heater Construction Standard.

• C22.1 Part 1 – Canadian Electrical Code.

10

FA Series

!

2.0 Safety • Clearance to Combustibles

Clearance to Combustibles

Clearance to combustibles is defined as the minimum distance that must exist between the specified
feature of the heater, and any combustible items. It also pertains to the distance that must be
maintained from moving objects around the unit heater. A recommended service clearance is defined
as the minimum distance that is needed to properly service the heater. When installing the unit heater,
clearances to combustible for the model heater must be maintained. Refer to Chart 2.4 to determine the
required distances for your model.

WARNING

Placement of explosive objects, flammable objects, liquids and vapors
close to the heater may result in explosion, fire, property damage,
serious injury or death. Do not store or use explosive objects, liquids or
vapor in the vicinity the heater.

Chart 2.4 • Clearances to Combustible Materials (in Inches) Commercial Models

Top and

Unit Side Front

Clearance to Combustibles

Clearance to Allow Service

60 1 18 1 1 6

60 1 18 1 18 6

Bottom

Figure 2.1 • Clearance to Combustibles Diagram

FRONT VIEW SIDE VIEW

Top

Non-Access

Side

Access

Side

Front

Access

Side

Non-Access

Side Rear

Vent

Connection

Top

Vent

Connection

Rear

Bottom

Bottom

11

3.0 Installation

!

FA Series

3.0 Installation

NOTICE

High humidity or saltwater atmospheres will accelerate heater corrosion and reduce useful life. Do not
install the heater in locations where water (in the form of rain, drips, or spray) could fall onto the gas
ignition components.

WARNING

Improper suspension of the unit heater may result in collapse and being crushed.
Always suspend from a permanent part of the building structure that can evenly
support the total force and weight of the heater.

Failure to maintain minimum clearance to combustibles may result in fire and/ or
explosion, property damage, serious injury or death. Always maintain minimum
clearances.

The suspension of the heater must conform to all applicable codes referenced in the safety section and
these instructions.

To ensure proper operation, the heater must be installed in a level horizontal position. The units are
designed to be hung with threaded rod via the four (4) threaded inserts on the top panel of the heater.

Determine desired mounting points, and mark the locations for the hanging points.

1

Prepare the mounting surface. If necessary, weld blocks, drill holes, or install additional bracketing

2

or steel channel.

Fasten beam clamp, screw hook, turnbuckle, steel channel, or other anchoring device to the

3

suspension points.

Determine the desired mounting height. Cut four pieces of 3/8”-16 threaded rod of equal length in

4

which the heater will be hung from. Ensure that the threads are not damaged during the cutting
process.

Using 3/8”-16 threaded rod, thread a nut up one end at a distance of approximately 1 inch. This is

5

the end that will be screwed into the heater.

Next, place a lock washer on top of the nut and thread the rod assembly into the unit heater’s

6

threaded inserts. A minimum of 2-3 complete threads must be exposed on the reverse side of the
threaded insert (approx. 9-10 turns), but no more than 20 turns, as this may cause the threaded rod
to collide with or damage the heat exchanger.

Tighten down the previously installed jam nuts to prevent the threaded rod from turning.

7

Attach threaded rod to prepared anchoring device. Adjust the threaded rod until the unit is level and

8

equal weight distribution is achieved. Threaded rod must be perpendicular with the unit. Do not
install threaded rods at an angle, as this can result in weakened structural integrity or undue noise.

12

FA Series

Recommended Mounting Heights

Chart 3.1 • Recommended Mounting Heights*

3.0 Installation • Recommended Mounting Heights

Model

FA-100

FA-12 5

FA-15 0

FA-175

FA-200

FA-225

FA-250

Typical

Mounting Height

12 to 14 ft. 43 ft. 50°F

14 to 16 ft. 57 ft. 50°F

14 to 16 ft. 52 ft. 50°F

15 to 17 ft. 51 ft. 50°F

15 to 17 ft. 55 ft. 50°F

16 to 18 ft. 59 ft. 50°F

16 to 18 ft. 63 ft. 50°F

Approximate

Heat Throw

Average Air

Temperature Rise

* Recommended mounting heights are provided as a guideline. Actual conditions may dictate
variations from the above data. Clearance to combustibles must always be maintained.

The recommended mounting heights of the units are critical to its performance. Refer to the Chart 3.1
for specific recommended mounting heights. The mounting height is measured from the finished floor to
the bottom of the unit. Units that are mounted higher than the recommended mounting heights may not
directly deliver heated air to the floor level.

13

3.0 Installation • Gas Supply Installation Instructions

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!

WARNING

Improperly connected gas lines may result in serious injury and death,
explosion, poisonous fumes, toxic gases or asphyxiation. Connect gas lines
in accordance to national, state, provincial and local codes.

Gas pressure to the appliance controls must never exceed ½” PSI (14” W.C.). Damage to the
controls may result.

CAUTION

Gas lines should be purged of air as described in ANSI Z223.1 (NFPA 54) or CSA-B149.1– latest
version. Installation of the piping must also conform with the local building codes, or in the
absence of local codes, with the latest edition of the National Fuel Gas Code (NFPA 54). In
Canada, installation must be in accordance with CSA-B149.1

FA Series

NOTICE

The total input to the appliance must fall within +/- 5% of the rated input as indicated on the
rating plate. Otherwise the heat exchanger may prematurely fail.

Gas Supply Installation Instructions

The gas supply to the unit heater must be connected and tested in accordance with national, state,
provincial, and local codes along with guidelines in this manual. In the United States refer to the latest
edition of the ANSI Z223.1 (NFPA54) Standard and in Canada refer to the latest edition of the CAN/GCA
B149.1 Standard.

Supply gas piping to the unit should conform with the local and national requirements for type and
volume of gas handled, and pressure drop allowed in the line. Avoid pipe sizes smaller than 1/2”.

Refer to Chart 3.2 for natural gas and Chart 3.3 for propane to determine the cubic feet per hour (CFH)
required for the type of gas and size of unit to be installed. To determine the proper pipe diameter, use
the CFH value and the length of pipe necessary from Chart 3.4. In the case where several units are
serviced by the same main gas line, the total capacity (CFH) and length of main must be adequate to
service all appliances downstream of this main.

14

FA Series

Chart 3.2 • Natural Gas Consumption

3.0 Installation • Gas Supply Installation Instructions

Model

FA-100 N

FA-12 5N

FA-15 0N

FA-175N

FA-200 N

FA-225N

FA-250N

Manifold
Pressure

(Inches W.C.)

3.5 5.0 14.0 95.2 42 DMS 4

3.5 5.0 14.0 119 . 0 42 DMS 5

3.5 5.0 14.0 142. 9 42 DMS 6

3.5 5.0 14.0 166.7 42 DMS 7

3.5 5.0 14.0 190.5 39 DMS 7

3.5 5.0 14.0 214.3 42 DMS 9

3.5 5.0 14.0 23 8 .1 40 DMS 9

Min. Inlet
Pressure

(Inches W.C.)

Max. Inlet

Pressure

(Inches W.C.)

Gas

Consumption

(CFH)*

Orifice

Size

*Assumes an average heating value of 1050 BTU/SCF and a Specific Gravity of 0.60.

Chart 3.3 • Propane Gas Consumption

Model

FA-100 P

FA-12 5P

FA-15 0P

FA-175P

FA-200 P

FA-225P

FA-250P

Manifold

Pressure

(Inches W.C.)

10.0 11. 0 14.0 40.0 1.10 54 DMS 4

10.0 11. 0 14.0 50.0 1.37 54 DMS 5

10.0 11. 0 14.0 60.0 1.6 5 54 DMS 6

10.0 11. 0 14.0 70.0 1.92 54 DMS 7

10.0 11. 0 14.0 80.0 2.20 1.45 mm 7

10.0 11. 0 14.0 90.0 2.47 54 DMS 9

10.0 11. 0 14.0 100.0 2.75 1.45mm 9

Min. Inlet
Pressure

(Inches W.C.)

Max. Inlet

Pressure

(Inches W.C.)

Gas

Consumption

(CFH)*

Gallons

per hour

Orifice

*

Size

Number

of Orifices

Number of

Orifices

*Assumes an average heating value of 2500 BTU/SCF and a Specific Gravity of 1.53.

Chart 3.4 allows for a 0.3 inch W.C. pressure drop in the supply pressure from the building main to the
inlet of the unit. Refer to the chart for the appropriate range of inlet pressures for each gas type. When
sizing the inlet gas pipe diameter, make sure that the unit supply pressure can be met after the 0.3 inch
W.C. pressure drop has been subtracted from the main pressure. If the 0.3 inch W.C. pressure drop is
too high, refer to NFPA 54 or the Gas Engineer’s Handbook for other gas pipe capacities.

15

!

3.0 Installation • Gas Supply Installation Instructions

Chart 3.4 • Maximum capacity for Schedule 40 Metallic pipe, in CFH

FA Series

Pipe

Length

(feet)

10’

20’

30’

40’

50’

60’

70’

80’

90’

100’

125’

150’

175’

200’

The FA Series heater is equipped to receive a gas supply line nipple of either ½”NPT or ¾”NPT
Schedule 40 metallic pipe. All piping must be installed in accordance with the requirements outlined in
the National Fuel Gas Code ANSI/Z223.1 (latest edition) or CSA-B149.1 and B149.2. Support all gas
supply piping with pipe hangers, metal strapping, or other suitable material. Do not rely on the heater to
support the gas pipe.

1/2” 3/4” 1” 1-1/4” 1-1/2” 2”

Nat L . P. Nat L .P. Nat L .P. Nat L .P. Nat L .P. Nat L .P.

132 86 278 182 520 340 1050 686 1600 1046 3050 1993

92 60 190 124 350 229 730 477 110 0 719 2100 1373

73 48 152 99 285 186 590 386 890 582 1650 1078

63 41 130 85 245 160 500 327 760 497 1450 948

56 37 115 75 215 141 440 288 670 438 1270 830

50 33 105 69 195 127 400 261 610 399 115 0 752

46 30 96 63 180 118 370 242 560 366 1050 686

43 28 90 59 170 111 350 229 530 346 990 647

40 26 84 55 160 105 320 209 490 320 930 608

38 25 79 52 150 98 305 199 460 301 870 569

34 22 72 47 130 85 275 180 410 268 780 510

31 20 64 42 120 78 250 163 380 248 710 464

28 18 59 39 110 72 225 147 350 229 650 425

26 17 55 36 100 65 210 137 320 209 610 399

When connecting piping to the unit, the use of a thread joint compound is required. The thread
compound (pipe dope) shall be resistant to the action of liquefied petroleum gas or any other chemical
constituents of the gas to be conducted through the piping. Use of Teflon

®

tape is not permitted.

WARNING

Always use two (2) opposing wrenches to tighten mating pipe connections
to prevent excessive torque on the gas valve and manifold pipe. Excessive
torque can damage the valve and/or misalign the orifice, resulting in fire,
explosion, serious injury or death.

Install a ground joint union with a brass seat and a manual shut off valve adjacent the unit for
emergency shut off and easy servicing of controls. A 1/8” NPT plugged tap that is accessible for a test
gauge connections is also recommended, as illustrated in Figure 3.1.

A sediment trap must be installed in the supply line in the lowest spot prior to connecting to the heater.
The trap length shall be at least three inches long. Ideally, the trap would be installed as close as
possible to the shut off, as shown in Figure 3.1.

16

FA Series

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Figure 3.1 • Recommended Hardware – Manual Shut Off and Sediment Trap

3.0 Installation • Gas Supply Installation Instructions • Leak Testing

Gas Supply Line

Leak Testing

Sediment

Trap

Flow of

Gas

Shut Off

To Unit

Ground Joint Union

1/8-in. NPT Test
Connection (Plugged)

3-in.

Minimum

WARNING

Use a soap solution or equivalent for leak testing. Never test for leak with an open
flame. Failure to comply could result in personal injury, property damage or death.

Always leak test final gas assembly for gas leaks according to the procedures outlined in NFPA 54 and
all local codes and/or Standards.

For leak testing on pressures below ½” PSI

Before leak testing, close the field installed manual shut off valve shown on Figure 3.1 on the supply
line to isolate the gas valve from the pressure.

NOTE: All factory installed gas connections have passed an approved leak test.

For leak testing on pressures above ½” PSI

When leak testing with pressures above ½” PSI (14 inches W.C.), the unit must be isolated from the
supply pipe. Close the field installed manual shut off valve, disconnect the supply line to the unit, and
temporarily cap the supply line for testing purposes.

WARNING

Gas pressures to the appliance controls must never exceed 14 inches W.C. (1/2”
PSI). Supply pressures greater than 14” W.C. can damage the controls, resulting in
personal injury, property damage, or death.

17