Bard WG4S2-A, WG4S2-B, WG5S2-A, WG5S2-B, WG3S2-C Installation Instructions Manual

INSTALLATION INSTRUCTIONS

WALL MOUNTED GAS/ELECTRIC

Models:

WG3S2-A
WG4S2-A
WG5S2-A

WG3S2-B
WG4S2-B
WG5S2-B

WG3S2-C
WG4S2-C
WG5S2-C

WARNING

READ ALL INSTRUCTIONS CAREFULLY BEFORE BEGINNING THE
INSTALLATION.

THE INSTALLATION MUST COMPLY WITH THESE INSTRUCTIONS
AND THE REQUIREMENTS OF ALL GOVERNING CODES AND
ORDINANCES FOR THE INSTALLATION LOCATION.

IT IS THE RESPONSIBILITY OF INSTALLER TO KNOW AND
UNDERSTAND ALL OF THESE REQUIREMENTS.

FAILURE TO DO SO COULD CREATE A HAZARD RESULTING IN
PROPERTY DAMAGE, BODILY INJURY, OR DEATH.

Bard Manufacturing Company, Inc.
Bryan, Ohio 43506

www.bardhvac.com

Manual No.: 2100-587C
Supersedes: 2100-587B
Date: 10-30-14

Page 1 of 59

CONTENTS

Page

Getting Other Information and Publications................4

WG Series Model Nomenclature

Ventilation Options......................................................5

Air Conditioning Module Options

1. Important..............................................................9

2. Application ........................................................... 9

3. Duct Work ............................................................ 9

4. High Altitude Applications ....................................9

5. Transportation Damage .....................................10

6. Installation..........................................................10

7. Wall Mounting ....................................................10

8. Mounting the Unit...............................................10

9. Clearances.........................................................16

10. Vent Terminal and Combustion Inlet Hood ........ 17

11. Optional Vertical Venting.................................... 17

12. Vent Resizing Instructions ................................. 18

13. Fresh Air Intake..................................................18

14. Condensate Drain .............................................. 18

15. Wiring – Main Power.......................................... 19

16. Wiring – Low Voltage Wiring .............................. 20

17. Thermostats ....................................................... 20

18. Gas Supply & Piping .......................................... 26

19. Manifold Pressure Adjustment ........................... 27

20. Checking Gas Input Rate...........................27 & 28

................................ 5

................................ 6

Page

21. StandardOriceSizing&High

Altitude Derate ................................................... 29

22. Conversion of Gas Input BTUH From High

to Low Rating ..................................................... 31

23. Measuring Air Temperature Rise .......................31

24. Filters ................................................................. 32

25. Compressor Control Module ......................32 & 33

26. Lighting & Shutdown Instructions ......................34

27. Service Agency Procedures...............................35

28. Maintaining Unit in Good Working Order ....35 & 36

2 9. Replacement Parts .............................................36

30. Sequence of Operation – Heating .....................37

31. Sequence of Operation – Cooling .....................37

32. Indoor Blower Operation .................................... 38

Start Up

Application ......................................................... 40

Important Installer Note ..................................... 40

High & Low Pressure Switch ............................. 40

Three Phase Scroll Compressor........................ 41

Troubleshooting

Compressor Solenoid ........................................ 42

Fan Blade Setting Dimensions .......................... 42

Removal of Fan Shroud ..................................... 42

ECMTM Motors .................................................... 43

ECMTM Motors .................................................... 44

33. Pressure Service Ports ......................................45

34. R-410A Refrigerant Charge ............................... 46

35. LowNOxBurnerAssembly"N"Sufx

Models Only – U.S. Installations Only ............... 46

Index – Wiring Diagrams

Wiring Diagrams

............................................... 48 – 59

.......................................... 47

Manual 2100-587C
Page 2 of 59

CONTENTS

Page

FIGURES

Figure 1 Unit Dimensions ...................................... 8

Figure 2A Mounting Instructions – WG3S2 ............ 11

Figure 2B Mounting Instructions–WG4S2 & WG5S2 .....12

Figure 3 Combustible Clearance ......................... 13

Figure 4 Wall Mounting Instructions ....................14

Figure 5 Wall Mounting Instructions ....................14

Figure 6 Common Wall Mounting Installations ....15

Figure 7 Location of Vent Terminal in Shipping ...16

Figure 8 Vent Terminal & Combustion

Air Intake ............................................... 17

Figure 9 Installation of Flexible Conduit .............. 20

Figure 10A Low Voltage Wiring - No Vent ................ 21

Figure 10B Low Voltage Wiring - CRV .................... 22

Figure 10C Low Voltage Wiring - Economizer ........ 23

Figure 10D Low Voltage Wiring - ERV .................... 24

Figure 11 Gas Pipe Connection ............................ 25

Figure 12 Proper Piping Practice ........................... 26

Figure 13 Access Internal Filter ............................. 32

Figure 14 Lighting & Shutdown Instruction Label ... 34

Figure 15 Top View of Gas Control ........................ 35

Figure 16 Sequence of Operation – Electronic

Blower Control ....................................... 37

Figure 17 Furnace Control Board &

Blower Control ....................................... 38

Figure 18 Fan Blade .............................................. 42

Figure 19 Control Disassembly ............................. 44

Figure 20 Winding Test .......................................... 44

Figure 21 Drip Loop ............................................... 44

Figure 22 Low NOx Insert ...................................... 46

Page

TABLES

 Table1 Specications ............................................7

Table 2 Minimum Installation Clearances ............16

Table 3 Thermostat Wire Size ..............................20

Table 4 Wall Thermostat ......................................20

Table 5 Length of Standard Pipe Threads ...........26

Table 6 Gas Pipe Sizes – Natural Gas .................26

Table 7 Natural Gas Derate Capacities

For All Models ..........................................29

 Table8 NaturalGasOriceTables–WG3,4,5S ...30

 Table8A NaturalGasOriceTables ......................30

Table 9 Indoor Blower Performance .....................38

Table 10 Integrated Furnace & Blower

Control Operation ....................................39

Table 11 Fan Blade Dimensions ............................42

Table 12 Cooling Pressures ...................................45

Manual 2100-587C
Page 3 of 59

Getting Other Information and Publications

These publications can help you install the furnace. You

can usually nd these at your local library or purchase

them directly from the publisher. Be sure to consult current
edition of each standard.

National Fuel Gas Code

National Electrical Code ......................ANSI / NFPA 70

Standard for the Installation ............. ANSI / NFPA 90A

of Air Conditioning and Ventilating Systems

Standard for Warm Air ..................... ANSI / NFPA 90B

Heating and Air Conditioning Systems

Standard for Chimneys, ................................ NFPA 211

Fireplaces, Vents, and Solid Fuel Burning Appliances

Load Calculation for ........................... ACCA Manual J

Residential Winter and Summer Air Conditioning

Duct Design for Residential .............. ACCA Manual D

Winter and Winter Air Conditioning and Equipment
Selection

Canadian Electrical Code ..............................CSA C22.1

.......... ANSI Z223.1 / NFPA 54

FOR MORE INFORMATION, CONTACT
THESE PUBLISHERS:

ACCA Air Conditioning Contractors of America
1712 New Hampshire Avenue, NW
Washington, DC 20009
Telephone: [phone]

ANSI American National Standards Institute
11 West Street, 13th Floor
New York, NY 10036
Telephone: [phone]
Fax: [phone]

ASHRAE American Society of Heating Refrigerating,
and Air Conditioning Engineers, Inc.
1791 Tullie Circle, NE.

Atlanta, GA 30329-2305
Telephone: [phone]
Fax: [phone]

NFPA National Fire Protection Association
Batterymarch Park
P.O. Box 9101
Quincy, MA 02269-9901
Telephone: [phone]
Fax: [phone]

CSA Canadian Standards Association
178 Rexdale Boulevard

Rexdale, Ontario
Canada. M9W 1R3
Telephone: [phone]

Canadian Installation Code

Manual 2100-587C
Page 4 of 59

……………

BARD MANUFACTURING COMPANY, INC.

CAN/CGA B149

BRYAN, OHIO 43506 USA

WALL MOUNT GAS/ELECTRIC GENERAL

MODEL NUMBER NOMENCLATURE

WG 4 S 2 – A X C X X X X X X

MODEL

Wall Mount
Gas/Electric

COOLING
CAPACITY

3 = 3 ton
4 = 4 ton
5 = 5 ton

Denotes Step
Capacity

FEATURE

(-) = Standard
(C) = Canada

REVISION

VENT

See Table Below)

(

VOLTAGE

A = 230/208-60-1
B = 230/208-60-3
C = 460-60-3

EMISSIONS

X = Standard

N=NOxCertied

HEATING INPUT

A = 50,000
B = 75,000
C = 100,000
D = 125,000*

*125,000BTUinputmodelisnotNOxcertied.

VENTILATION OPTIONS

COLOR

X = Beige
(Standard)
4 = Buckeye Gray

FILTER

X = 2” Pleated (Standard)
W = 1” Washable

CONTROL OPTIONS

(See Table page 6)

COIL OPTIONS

X = Standard
1 = Phenolic coated evaporator
2 = Phenolic coated condenser
3 = Phenolic coated both coils

OUTLET

X = Front (Standard)
T = Top

Description

Factory Installed

Code No.

Field Installed

Part No.

Blank-Off Plate B WGSBOP-5

Commercial Ventilator – Multiple Position V WGSCRVMP-5

Economizer - Fully Modulating 

E WGSEIFM-5

Energy Recovery Ventilator – 230 Volt R WGSERV-A5A

Energy Recovery Ventilator – 460 Volt R WGSERV-C5A

 Low ambient control is required with economizer for low temperature compressor operation.

Manual 2100-587C
Page 5 of 59

AIR CONDITIONING MODULE OPTIONS

CCM



STD STD STD X N/A

STD STD STD -- H CMA-28

STD = Standard equipment

HPC



LPC



LAC



Factory Installed

Code

Field Installed

Part

 CCM Compressor control module has adjustable 30 second to 5 minute delay-on-breaktimer. On

initial power up, or any time the power is interrupted, the delay-on-make will be 2 minutes plus
10% of the delay-on-break setting. There is no delay-on-make during routine operation of the
unit. The module also provides the lockout feature (with 1 retry) for high and/or low pressure
controls, and a 2 minute timed bypass for low pressure control.

 HPC High pressure control is auto reset. Always used with compressor control module (CCM)

which is included. See note .

 LPC Low pressure control is auto reset. Always used with compressor control module (CCM) which

is included. See note .

 LAC Low ambient control permits cooling operation down to 0°F.

CAUTION

Duringtheinitialringoftheburnerstherewillprobablybesomeamountofsmokeissuedtothe

circulating air stream as the result of residual oil burning off of the heat exchanger tubes. This oil
is required during the forming process of the stainless steel heat exchanger tubes to facilitate the
bending. OSHA or the National Toxicology Program does not list the oil as a carcinogen. In vapor
form this may be irritating to the eyes or could cause headaches. This is a one-time occurrence,
and ventilation of the space may be required depending upon the space being conditioned.

Manual 2100-587C
Page 6 of 59

TABLE 1

SPECIFICATIONS

2.5 1.3 2.5 2.5 1.3 2.5 2.5 1.3

Models WG3S2-A WG3S2-B WG3S2-C WG4S2-A WG4S2-B WG4S2-C WG5S2-A WG5S2-B WG5S2-C

Operating Voltage Range 197-253 187-253 414-506 197-253 187-253 414-506 197-253 187-253 414-506

Minimum Circuit Ampacity 27 23 12 36 27 14 45 31 15

* Field Wire Size 8 10 14 8 10 12 8 8 12

Ground Wire Size 10 10 14 10 10 12 10 10 12

Electrical Rating - 60 Hz 230/208-60-1 230/208-60-3 460-60-3 230/208-60-1 230/208-60-3 460-60-3 230/208-60-1 230/208-60-3 460-60-3

** Delay Fuse - Max. 40 30 15 45 40 20 60 45 20

Compressor Type Scroll Scroll Scroll Scroll Scroll Scroll Scroll Scroll Scroll

Volts 230/208 230/208 460 230/208 230/208 460 230/208 230/208 460

Compressor

Rated Load Amps 11.6 / 12.9 8.8 / 9.9 6.7 15.0 / 17.8 10.4 / 11.8 5.4 20.9 / 23.0 12.8 / 14.1 6.2

Branch Circuit Selection Current 15.3 11.7 5.8 21.2 14.1 6.5 27.2 16.5 7.2

Lock Rotor Amps 83 73 38 104 83 41 153 110 52

Fan Motor - HP/RPM/SPD 1/3-850-2 1/3-850-2 1/3-850-1 1/3-850-2 1/3-850-2 1/3-850-1 1/3-850-2 1/3-850-2 1/3-850-1

Blower Motor - Amps 2.5

Fan Motor and Compressor

Fan - DIA/CFM 24" – 2700 24" – 2700 24" – 2700 24" – 2700 24" – 2700 24" – 2700 24" – 2700 24" – 2700 24" – 2700

Blower Motor - HP/RPM/SPD 1/2 Variable 1/2 Variable 1/2 Variable 3/4 Variable 3/4 Variable 3/4 Variable 3/4 Variable 3/4 Variable 3/4 Variable

Blower Motor - Amps 3.6 3.6 3.6 4.7 4.7 4.7 6.0 6.0 6.0

Motor and Evaporator

CFM Cooling & E.S.P. 1100 1100 1100 1500 1500 1500 1700 1700 1700

Filter Sizes (Inches) 20 x 30 x 2 20 x 30 x 2 20 x 30 x 2 20 x 30 x 2 20 x 30 x 2 20 x 30 x 2 20 x 30 x 2 20 x 30 x 2 20 x 30 x 2

Charge (R-410A) 156 156 156 240 240 240 246 246 246

* 75° C Copper wire size

** Maximum time delay fuse or circuit breaker

Manual 2100-587C
Page 7 of 59

M

G

N

P

D

A

FF

GG

HH

Y

Z

T

C

KJ

BB

DD

R

W

S

S

S

S

CC

F

B

AA

X

U

I

V

S

B

EE

O

E

L

II

Q

H

FILTER

SERVICE

DOOR

GAS

PANEL

VENT OPTION

CIRCUIT BREAKER/

FRONT

RETURN OPENING

CONDENSER

BACK

SUPPLY OPENING

DISCONNECT ACCESS

RIGHT SIDE

LOW VOLTAGE

PANEL (LOCKABLE)

PANEL DOOR

COMBUSTION

AIR EXHAUST

AIR INTAKE

COMBUSTION

ENTRANCES

VESTIBULE

DOOR

AIR INLETS

CONTROL

ENTRANCES

CONDENSER

4 DEG. PITCH IN TOP

AIR OUTLET

HIGH VOLTAGE

ENTRANCES

FRONT DOOR

MIS-3240 A

UNIT A B C D E F G H I J K L M N O P QR

WG3S2 31.63 87.5 33.38 28.75

41.63

43.38

UNIT S T U V W X Y Z AA BB CC DD EE FF GG HH II

WG3S2 3.75 24.9

13.75

34.9

3.25 2.75

2.514.88 30 14.12 15.44 42.8815.31

2.253.88 42 17.34 8.44

4.5

12.19 10 40.25

43.81

0.44

3.75

16

9.88 29.88 15.88 27.25

1.257.25 1.13

FIGURE 1

UNIT DIMENSIONS

Manual 2100-587C

Page 8 of 59

1. IMPORTANT

The equipment covered in this manual is to be installed
by trained, experienced service and installation
technicians. All duct work or portions thereof not in the
conditioned space should be properly insulated in order
to both conserve energy and prevent condensation or
moisture damage.

2. APPLICATION

This is a fan-assisted forced air gas furnace with electric
air conditioning for outdoor installation. A fan-assisted
furnace is equipped with an integral mechanical means
to draw products of combustion through the combustion
chamber and heat exchanger. The furnace installation
must conform with local building codes and ordinances
or, in their absence, with the National Fuel Gas Code
ANSI Z223.1 or CAN/CGA-B149.1, latest edition, and
the National Electrical Code ANSI/NFPA-7 or CSA
C22.1, latest edition. It is the personal responsibility

and obligation of the purchaser to contact a qualied

installer to assure that installation is adequate and is in
conformance with governing codes and ordinances.

3. DUCT WORK

The unit is designed for use with or without duct
work. See Warning on Page 9. Flanges are provided
for attaching the supply and return ducts. These
instructions explain the recommended method to install
the air cooled self-contained electric air conditioning
and gas heating unit and the electrical wiring
connections and gas piping to the unit. The refrigerant
system is completely assembled and charged. All
internal wiring is complete.

These instructions and any instructions packaged with
any separate equipment required to make up the entire
heating/cooling system should be carefully read before
beginning the installation. Note particularly “Starting
Procedure” and any tags and/or labels attached to the
equipment.

All duct work, supply and return, must be properly

sized for the design airow requirement of the

equipment. Air Conditioning Contractors of America

(ACCA) is an excellent guide to proper sizing.

Refer to Table 9 in this Manual for maximum static
pressure available for duct design.

See Figure 3 and clearance information in Section 9 and
Table 2 for additional information.

WARNING

In all cases, there must be a metal duct

connectionmadetothesupplyairange,and

a one inch clearance to combustibles must be
maintained to this duct connection.

For free blow applications, a metal sleeve
must be used in the wall opening itself,
again maintaining a one inch clearance to
combustibles.

Failuretousethesheetmetalcancausere

resulting in property damage, injury, or death.

A one-inch clearance to combustible material for the

rst three feet of duct attached to the outlet air frame is

required. See Wall Mounting Instructions and Figures
2, 2A, 3 and 3A for further details.

Ducts through the walls must be insulated and all joints
taped or sealed to prevent air or moisture entering the
wall cavity.

Some installations may not require any return air duct.
A metallic return air grille is required with installations
not requiring a return air duct. The spacing between
louvers on the grille shall not be larger than 5/8 inch.

Any grille that meets with the 5/8 inch louver criteria
may be used. It is recommended that Bard Return Air
Grille or Return Filter Grille be installed when no return
duct is used. Contact distributor or factory for ordering

information. If using a return air lter grille, lters
must be of sufcient size to allow a maximum velocity

of 400 fpm.

NOTE: If no return air duct is used, applicable

installation codes may limit this cabinet to
installation only in a single story structure.

4. HIGH ALTITUDE APPLICATIONS

Ratings of gas utilization equipment are based on

sea level operation and need not be changed for
operation at elevations up to 6,000 feet. For operation
at elevations above 6,000 feet and in the absence of

specic recommendations from the local authority

having jurisdiction, equipment ratings shall be reduced

as specied in Section 21.

Design the duct work according to methods given by
the Air Conditioning Contractors of America (ACCA).
When duct runs through unheated spaces, it should be
insulated with a minimum of one-inch of insulation.
Use insulation with a vapor barrier on the outside of the
insulation. Flexible joints should be used to connect the
duct work to the equipment in order to keep the noise
transmission to a minimum.

Manual 2100-587C
Page 9 of 59

5. TRANSPORTATION DAMAGE

All units are packed securely in shipping container.
All units should be carefully inspected upon arrival for
damage. In the event of damage, the consignee should:

1. Note on delivery receipt of any damage to container.

2. Notify carrier promptly, and request an inspection.

3. In case of concealed damage, the carrier must be

notied as soon as possible within 15 days after

delivery.

4. Claims for any damage, apparent or concealed,

should be led with the carrier, using the following

supporting documents:

A. Original Bill of Lading, certied copy, or

indemnity bond.

8. MOUNTING THE UNIT

1. These units are secured by wall mounting
brackets which secure the unit to the outside
wall surface at both sides. A bottom mounting
bracket is provided for ease of installation but
is not required.

CAUTION

If the bottom bracket is used, be certain the
bracket is secured to the outside wall surface

inawaysufcienttosupporttheentire

weight of the unit during installation until side
mounting brackets are secured.

B. Original paid freight bill of indemnity in lieu

thereof.

C. Original invoice or certied copy thereof

showing trade and other discounts or
deductions.

D. Copy of the inspection report issued by

carrier’s representative at the time damage is
reported to carrier.

6. INSTALLATION

Size of unit for proposed installation should be based

on heat loss/heat gain calculations made according
to methods of Air Conditioning Contractors of
America (ACCA). The air duct should be installed
in accordance with the Standards of the National
Fire Protection Association for the Installation of Air
Conditioning and Ventilating Systems of Other Than
Residence Type, NFPA No. 90A, and Residence Type
Warm Air Heating and Air Conditioning Systems,
NFPA No. 90B. Where local regulations are at a
variance with instructions, installer should adhere to
local codes.

7. WALL MOUNTING INFORMATION

1. Two holes for the supply and return air
openings must be cut through the wall as
detailed in Figure 4.

2. On wood-frame walls, the wall construction
must be strong and rigid enough to carry the
weight of the unit without transmitting any unit
vibration.

2. The WG3S2, WG4S2 and WG5S2 models are
suitable for 0 inch clearance on the installation
mounting wall and to the top. For all models the

supply air duct ange and the rst 3 feet of

supply air duct require a minimum of 1-inch
clearance to combustible material.

WARNING

Failure to provide the one inch clearance
between the supply duct and a combustible

surfacefortherstthreefeetofductcanresult
inrecausingdamage,injuryordeath.

3. Locate and mark lag bolt locations and bottom

mounting bracket location.

4. Mount bottom mounting bracket.

5. Hook top rain ashing under back bend of top.

Top rain ashing is shipped secured to the right

side of the back.

6. Position unit in opening and secure with 5/16

lag bolts; use 7/8 inch diameter at washers on
the lag bolts. Use lag bolts long enough to
support the unit’s weight when mounted to the
structure. This length may be dependant on the
type of construction.

7. Secure rain ashing to wall and caulk across

entire length of top. See Figure 3.

3. Concrete block walls must be thoroughly
inspected to insure that they are capable of
carrying the weight of the installed unit.

Manual 2100-587C
Page 10 of 59

8. On side-by-side installations, maintain a
minimum of 20 inches clearance on right side
to allow access to control panel and burner
compartment, and to allow proper airow to the
outdoor coil. Additional clearance may be
required to meet local or national codes.

FIGURE 2A

FOR WG3S2

MOUNTING INSTRUCTIONS

Manual 2100-587C
Page 11 of 59

FIGURE 2B

FOR WG4S2 AND WG5S2

MOUNTING INSTRUCTIONS

Manual 2100-587C
Page 12 of 59

FIGURE 3

COMBUSTIBLE CLEARANCE

WARNING

A minimum of one (1) inch clearance must be maintained between the supply air duct and combustible materials.

Thisisrequiredfortherstthree(3)feetofducting.

It is important to insure that the one (1) inch minimum spacing is maintained at all points.

Failuretodothiscouldresultinoverheatingthecombustiblematerialandmayresultinarecausingdamage,injury

or death.

Manual 2100-587C
Page 13 of 59

FIGURE 4

WALL MOUNTING INSTRUCTIONS

FIGURE 5

WALL MOUNTING INSTRUCTIONS

Manual 2100-587C
Page 14 of 59

FIGURE 6

COMMON WALL MOUNTING INSTALLATIONS

Manual 2100-587C
Page 15 of 59

9. CLEARANCES

Minimum clearances, as specied in Table 2, must

be maintained from adjacent structures to provide

adequate re protection, adequate combustion air, and

room for service personnel.

While minimum clearances are acceptable for safety
reasons, they may not allow adequate air circulation
around the unit for proper operation in the cooling
mode. Whenever possible, it is desirable to allow
additional clearance, especially around the condenser
inlet and discharge openings. DO NOT install the unit
in a location that will permit discharged air from the
condenser to recirculate to the condenser inlet.

WARNING

Clearances from combustible materials

mustbemaintainedasspecied.Failureto
maintainclearancescouldcausereresulting

in property damage, injury, or death.

TABLE 2

MINIMUM INSTALLATION CLEARANCES

Outlet Duct

(from combustible materials)

Vent Terminal

(from combustible materials)

Condenser Inlet 20 inches

Top See Figure 3

Burner Service 20 inches

Combustible Base (Wood or Class

A, B or C roof covering material)

* See Figure 3

1inchrst3feet

* 17 inches

0 inches

FIGURE 7

LOCATION OF VENT TERMINAL IN SHIPPING

Manual 2100-587C
Page 16 of 59

10. VENT TERMINAL AND COMBUSTION
AIR INLET HOOD

The vent terminal is shipped in the burner
compartment. See Figure 7. Remove the two shipping
screws and separate the two-piece assembly. Install the
vent terminal by using the four screws provided. Make
sure gasket is in place. See Figure 8. The combustion
air intake hood is factory installed.

11. OPTIONAL VERTICAL VENTING

With the optional vertical venting kit (VVK-5) this unit
may be vented vertically through a roof or overhang.
The kit includes a stainless steel transition drain tee,
silicone sealant, and drain tubing.

If unit is installed with vertical vent kit, annually
inspect the vent system and drain. Replace any portion
of the vent system that shows signs of deterioration.
Make sure drain is open and free of obstruction.

CAUTION

Vent terminal must be installed as shown in Figure 8 for proper operation of the heating system.

NOTE: The inner vent hood gasket is designed to stretch over and seal around the combustion

air blower outlet. This is a very critical seal to prevent water and ue products from entering the

unit. Care must be taken to insure this gasket is in place and sealing properly.

FIGURE 8

VENT TERMINAL AND COMBUSTION AIR INTAKE

Manual 2100-587C
Page 17 of 59

12. VENT RESIZING INSTRUCTIONS

13. FRESH AIR INTAKE

When an existing furnace is removed from a venting
system servicing other appliances, the venting system
is likely to be too large to properly vent the remaining
attached appliances.

The following steps shall be followed with each of the
appliances remaining connected to the common venting
system, placed in operation one at a time while the
other appliances remaining connected to the common
venting system are not in operation.

1. Seal any unused openings in the venting system.

2. Inspect the venting system for proper size and
horizontal pitch, as required in the National Fuel

Gas code, ANSI Z223.1 or the CAN/CGA B149
Installation Codes and these instructions. Determine
that there is no blockage or restriction, leakage,

corrosion and other deciencies which could cause

an unsafe condition.

3. In so far as is practical, close all building doors and
windows and all doors between the space in which
the appliance(s) connected to the venting system
are located and other spaces of the building. Turn
on clothes dryers and any appliances not connected
to the venting system. Turn on any exhaust fans,
such as range hoods and bathroom exhausts, so they
will operate at maximum speed. Do not operate a

summer exhaust fan. Close replace dampers.

All units are built with fresh air inlet slots punched in
the service panel.

The default unit is built with blank-off plates

installed. All capacity, efciency and cost of operation

information as required for Department of Energy
“Energyguide” Fact Sheets is based upon the fresh
air blank-off plate in place and is recommended for

maximum energy efciency.

One of several other ventilation options may be
installed. Refer to model number and/or supplemental
installation instructions.

14. CONDENSATE DRAIN

A plastic drain hose extends from the drain pan at
the top of the unit down to the unit base. There are
openings in the unit base for the drain hose to pass
through. In the event the drain hose is connected to a
drain system of some type, it must be an open or vented
type system to assure proper drainage.

4. Follow the lighting instructions. Place the appliance
being inspected in operation. Adjust thermostat so
appliance shall operate continuously.

5. Test for draft hood equipped appliance spillage
at the draft hood relief opening after 5 minutes of

main burner operation. Use the ame of a match or

candle.

6. After it has been determined that each appliance
connected to the venting system properly vents when
tested as outlined above, return doors, windows,

exhaust fans, replace dampers and any other gas-

burning appliances to their previous conditions of
use.

7. If improper venting is observed during any of the
above tests, the venting system must be corrected.

Manual 2100-587C
Page 18 of 59