Burnham SCG 8140705R3 User Manual To The 3448b391 F5b2 4bef 99d9 F52b89ac44dd

User Manual: Burnham SCG to the manual

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8140705R3-1/07

As an ENERGY STAR® Partner, Burnham Hydronics has determined that the SCG meets the ENERGY

STAR® guidelines for energy efﬁ ciency established by the United States Environmental Protection Agency (EPA).

Price - $5.00

DNAGNITAREPO,NOITALLATSNI

ROFSNOITCURTSNIECIVRES

™GCS

RELIOBDERIF-SAG

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.lebaLgnitaRnonwohssarebmuNlaireSdnarebmuNledoMrelioBedivorp,reliob

rebmuNledoMrelioB

___-____GCS

rebmuNlaireSrelioB

________

etaDnoitallatsnI

rotcartnoCgnitaeH rebmuNenohP

sserddA

IMPORTANT INFORMATION - READ CAREFULLY

NOTE: The equipment shall be installed in accordance with those installation regulations enforced in the area where the

installation is to be made. These regulations shall be carefully followed in all cases. Authorities having jurisdiction

shall be consulted before installations are made.

All wiring on boilers installed in the USA shall be made in accordance with the National Electrical Code and/or local regulations.

All wiring on boilers installed in Canada shall be made in accordance with the Canadian Electrical Code and/or local regulations.

REGNAD

ynarosihtfoytinicivehtnisdiuqilrosropavelbammalfrehtoroenilosagesuroerotsTONOD

.ecnailpparehto

lacirtceleynahcuotTONOD-ecnailppaynaetarepootyrtTONOD,sropavsagllemsuoyfI

yletomeramorfreilppussagehtllac,ylet

aidemmI.gnidliubehtnienohpynaesurohctiws

tcatnoc,elbaliavanusireilppusehtfirosnoitcurtsnis'reilppussagehtwolloF.enohpdetacol

.tnemtrapederifeht

REGNAD

noitautissuodrazahyltnenimminasetacidnI

,htaednitluserlliw,dediovatonfi,hcihw

ytreporplaitnatsbusroyruj

nisuoires

.egamad

GNINRAW

noitautissuodrazahyllaitnetopasetacidnI

,htaednitluserdluoc,dediovatonfi,hcihw

ytreporplaitnatsbusroyru

jnisuoires

.egamad

NOITUAC

noitautissuodrazahyllaitnetopasetacidnI

nitluseryam,dediovatonfi,hcihw

ytreporproyrujnironimroetaredom

egamad

ECITON

nosnoitcurtsnilaicepssetacidnI

ecnanetniamro,noitarepo,noitallatsni

otdetalertontubtnatropmierahcihw

.sd

razahyrujnilanosrep

The following terms are used throughout this manual to bring attention to the presence of hazards of various risk levels,

or to important information concerning product life.

The New York City Department of Buildings has approved the SCG™ Series boiler: Approval No. MEA 5-06-E.

The City of New York requires either a Licensed Master Plumber or a Fire Suppression Piping Contractor supervise the

installation of this product.

The Massachusetts Board of Plumbers and Gas Fitters has approved the SCG™ Series boiler. See the Massachusetts Board of

Plumbers and Gas Fitters website, http://license.reg.state.ma.us/pubLic/pb_pre_form.asp for the latest Approval Code or ask

your local Sales Representative.

The Commonwealth of Massachusetts requires this product to be installed by a Licensed Plumber or Gas Fitter.

ECITON

.launamsihtfokcabehtnodetnirpsihcihwfoypoca,ytnarrawdetimilasahreliobsihT

dellatsniyltcerroceraslortnocllatahteesotrotcartnocgnillatsniehtfoytilibisnopserehtsitI

.etelpmocsinoitallatsniehtnehwylreporpgnitarepoeradna

GNINRAW

ehtwolloF.ylefasetarepootecivresdnaecnanetniamralugerseriuqerreliobsihT

.launamsihtnideniatnocsnoitcurtsni

ytreporpesuacnacecnanetniamroecivres,noitaretla,tnemtsujda,noitallatsnireporpmI

erofeblaunameritne

ehtdnatsrednudnadaeR.efilfossolroyrujnilanosrep,egamad

ebtsumecivresdnanoitallatsnI.ecivresro,noitarepopu-trats,noitallatsnignitpmetta

.ycnegaecivresrorellatsnielbaegdelwonkdna,delliks,decneirepxenaybylnodemrofrep

.detnevylreporpebtsumreliobsihT

snoisivorperaerehtosdellatsniebtsumdnanoitarepoefasrofriahserfsdeenreliobsihT

.rianoitalitnevdnanoitsubmocetauqedarof

ehtfotratsehterofebdenaelcdnadetcepsniebtsummetsysgnitnevehtforoiretniehT

ynarofnosaesgnitaehehttuohguorhtyllacidoirepdetcepsniebdluohsdnanosaesgnitaeh

suoixonwollaotyrassecensimetsysgnitnevdetcurtsbonudnanaelcA.snoitcurtsbo

drawotetubirtnoclliwdnaylefastnevotefilfossolroyrujniesuacdluoctahtsemuf

.ycneiciffes'reliobehtgniniatniam

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.sliated

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metsysgnitaeheht,ytilibissopasisepipnezorfoteudegamadfI.ecivrestuohtiwtrats-er

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.evitareponisireliobehtfiegamadtneverpotmetsysgnitaehehtnodellatsnieb

sgnittifepipynawercsnutonoD.erusserphgihrednuretawtohyrevsniatnocreliobsihT

ehtgnirussaylevitisoptuohtiwreliobsihtfostnenopmocynatcennocsidottpmettaron

nehwtnempiuqednagnihtolcevitcetorpraewsyawlA.erusserponsahdnaloocsiretaw

ehtnoylertonoD.seirujnidlacstneverpotreliobsihtgnicivresropugnitrats,gnillatsni

.reliobehtfoerusserpdnaerutarepmetehtenimretedotseguagerutarepmetdnaerusserp

oD.gnitareposireliobehtnehwtohyrevemocebhcihwstnenopmocsniatnocreliobsihT

.loocerayehtsselnustnenopmo

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foetatsehtotnwonkerahcihwdnayrujnisuoiresrohtaedesuacnachcihwsecnatsbus

reporpesusyawlA.mrahevitcudorperrehtodnastcefedhtrib,recnacesuacotainrofilaC

.ecnailppaehtybraengnikrowrognicivresnehwtnempiuqednasrotaripser,gnihtolcytefas

.htaedro

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slaunamsrerutcafunamtnenopmocnide

niatnocesohtllagnidulcni,snoitcurtsnilladaeR

rogniniatniam,gnitarepo,pugnitrats,gnillatsnierofebreliobehthtiwdedivorperahcihw

.gnicivres

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.semitllataecalpniebtsumsdraugdnaserusolcne,setalprevocllA

Table of Contents

Figure 1: Minimum Clearances to Combustibles

I. Pre-Installation ............................... 6

II. Unpack Boiler ................................ 7

III. Venting/Air Intake Piping .............. 8

IV. Water Piping and Trim ................. 45

V. Gas Piping .................................... 50

VI. Electrical ....................................... 53

VII. Modular Installation .................... 62

VIII. System Start-up ............................ 64

IX. Service .......................................... 68

X. Repair Parts .................................. 74

Figure 2: Dimensions

GNINRAW

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tluseryamnoisolpxeroerifa,yltcaxe

lanosreproegamadytreporpgnisuac

.yru

jni

REGNAD

rehtoroenilosagerehwreliobllatsnitonoD

fosecruosro,sdiuqilrosropavelbammalf

,srenaelc,sehcaelb.e.i(snob

racordyh

cirbaf,srevomertniap,syarps,slacimehc

.derotsrodesuera).cte,srenetfos

ECITON

,reliobehtfotnetnocretawwolehtoteuD

ehtotdragerhtiwreliobehtfognizis-sim

evissecxenitluserlliwdaolmetsysgnitaeh

tnenopmocdetareleccadnagnilcycreliob

tnarrawTONSEODmahnruB.eruliaf

reliobdezis-simybdesuacserul

iaf

otreliobehtezisrevoTONOD.snoitacilppa

snoitallatsnireliobraludoM.metsyseht

reliobfodoohilekilehtecuderyltaerg

.gnizisrevo

A. Installation must conform to the requirements of the

authority having jurisdiction. In the absence of such

requirements, installation must conform to the National

Fuel Gas Code, NFPA 54/ANSI Z223.1, and/or CAN/

CGA B149 Installation Codes.

B. Appliance is design certiﬁ ed for installation on

combustible ﬂ ooring. Do not install boiler on

carpeting.

C. Provide clearance between boiler jacket and

combustible material in accordance with local ﬁ re

ordinance. Refer to Figure 1 for minimum listed

clearance from combustible material. Recommended

service clearance is 24 inches from left side, right

side and front. Service clearances may be reduced to

minimum clearances to combustible materials.

D. Install on level ﬂ oor. For basement installation provide

solid base such as concrete, if ﬂ oor is not level or if

water may be encountered on ﬂ oor around boiler. Floor

must be able to support weight of boiler, water and all

additional system components.

E. Protect gas ignition system components from water

(dripping, spraying, rain, etc.) during boiler operation

and service (circulator replacement, condensate trap,

control replacement, etc.).

I. Pre-Installation

F. Provide combustion and ventilation air in accordance

with applicable provisions of local building codes,

or: USA - National Fuel Gas Code, NFPA 54/ANSI

Z223.1, Air for Combustion and Ventilation;

Canada - Natural Gas Installation Code, CAN/

CGA-B149.1, or Propane Installation Code, CAN/

CGA-B149.2, Venting Systems and Air Supply for

Appliances.

GNINRAW

rianoitalitnevdnanoitsubmocetauqedA

reporperussaotdedivorpebtsum

.noitsubmoc

The following guideline is based on the National Fuel Gas

Code, NFPA 54/ANSI Z223.1.

1. Determine volume of space (boiler room). Rooms

communicating directly with space (through

openings not furnished with doors) are considered

part of space.

Volume [ft³] = Length [ft] x Width [ft] x Height [ft]

2. Determine Total Input of all appliances in space.

Round result to nearest 1,000 Btu per hour (Btuh).

3. Determine type of space. Divide Volume by Total

Input.

a. If result is greater than or equal to 50 ft³ per

1,000 Btuh, space is considered an unconﬁ ned

space.

b. If result is less than 50 ft³ per 1,000 Btuh, space

is considered a conﬁ ned space.

4. Determine building type. A building of unusually

tight construction has the following characteristics:

a. Walls and ceiling exposed to outside atmosphere

have a continuous water vapor retarder with a

rating of 1 perm or less with openings gasketed

and sealed, and;

b. Weather-stripping has been added on openable

windows and doors, and;

c. Caulking or sealants applied in joints around

window and door frames, between sill plates and

ﬂ oors, between wall-ceiling joints, between wall

panels, at plumbing and electrical penetrations,

and at other openings.

5. For boiler located in an unconﬁ ned space in a

building of other than unusually tight construction,

adequate combustion and ventilation air is normally

provided by fresh air inﬁ ltration through cracks

around windows and doors.

c. Horizontal ducts. Minimum free area of one (1)

square inch per 2,000 Btu per hour input of all

equipment in space. Duct cross-sectional area

shall be same as opening free area.

Alternate method for boiler located within

conﬁ ned space. Use indoor air if two permanent

openings communicate directly with additional

space(s) of sufﬁ cient volume such that combined

volume of all spaces meet criteria for unconﬁ ned

space. Size each opening for minimum free area

of one (1) square inch per 1,000 Btu per hour

input of all equipment in spaces, but not less than

100 square inches.

7. Combustion Air/Ventilation Duct Louvers and

Grilles. Equip outside openings with louvers to

prevent entrance of rain and snow, and screens to

prevent entrance of insects and rodents. Louvers and

grilles must be ﬁ xed in open position or interlocked

with equipment to open automatically before burner

operation. Screens must not be smaller than ¼ inch

mesh.

Consider the blocking effect of louvers, grilles and

screens when calculating the opening size to provide

the required free area. If free area of louver or grille

is not known, assume wood louvers have 20-25

percent free area and metal louvers and grilles have

60-75 percent free area.

II. Unpack Boiler

NOITUAC

reliobpmubtonoD.reliobpordtonoD

.roolftsniagatekcaj

A. Move boiler to approximate installed position.

B. Remove all crate fasteners.

C. Lift and remove outside container. Save two of the

wooden slats from the container sleeve for use in Steps

E and F.

D. Remove all boiler hold-down fasteners.

GNINRAW

ebdluohsreliobsihtfonoitallatsnI

delliksdnadeniartybylnonekatrednu

.ycnegaecivresdeifilauqamorflennosre

E. Tilt the boiler to its front side or back side and slide a

wooden slat under the three raised feet.

F. Tilt the boiler in the opposite direction and slide

another wooden slat under the three raised feet.

G. Slide the boiler left or right off the skid using the two

wooden slats as runners.

H. Move boiler to its permanent location.

NOITUAC

nanireliobsihtgnitarepodiova,)riAroodnI-noitceSgnitneVees(noitsubmocrofriaroodnignisufI

sireliobfI.tneserpera.cte,tsudllawyrd,srebifnoitalusniesool,tsudwaserehwtnemnorivne

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.noitareporeporperusniot

ECITON

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ehtmorfrianoitsubmocrofsnoisivorp

ellatsnisignipipekatniriadedivorp,moor

sihtnisnoitcurtsniehtdnaedocrep

.launam

6. For boiler located within unconﬁ ned space in building

of unusually tight construction or within conﬁ ned

space, provide outdoor air through two permanent

openings which communicate directly or by duct

with the outdoors or spaces (crawl or attic) freely

communicating with the outdoors. Locate one opening

within twelve (12) inches of top of space. Locate

remaining opening within twelve (12) inches of bottom

of space. Minimum dimension of air opening is three

(3) inches. Size each opening per following:

a. Direct communication with outdoors. Minimum

free area of one (1) square inch per 4,000 Btu per

hour input of all equipment in space.

b. Vertical ducts. Minimum free area of one (1)

square inch per 4,000 Btu per hour input of all

equipment in space. Duct cross-sectional area

shall be same as opening free area.

III. Venting / Air Intake Piping

Table 1: Air Intake / Vent System Options

GNINRAW

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,srenetfoscirbaf,srevomertniap,syarps

,slacimehc,srenaelc,sehcaelb.e.i(snobracordyh

.riaehtnitneserpro/dnaderots,desuera).cte

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yllacitrevgnitanimretepipekatniriadnae

pip

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.slanimretdnagnipipekatniriadnatneveht

oN eeS

2elbaT .E

itanibmoC.3

latnoziroH

epiptnevehthtiw)noitsubmocdelaes(tneVtceriD

lanimretnommocatagniniojepipekatniriadna

pullawedisahguorht(yllatnozirohgnitanimretdna

.noitartenepenoylnohtiw)kciht"51ot

seY noitceS6-3

)21060

116( .F

noitanibmoC.4

lacitreV

epiptnevehthtiw)noitsubmocdelaes(tneVtceriD

lanimretnommocatagniniojepipeka

tniriadna

htiw)foorehthguorht(yllacitrevgnitanimretdna

.noitartenepenoylno

seY

noitceS4-3

)10-222001(

noitc

eS6-5

)10-322001(

riAroodnI.5 dedivorpsinoitsubmocrofdesuriA-tneVrewoP

.gnidliubehtnihtiwmorf oN2elbaTeeS.

lanoitpO.6

etarapeS

latnoziroH

tnevehthtobhtiw)noitsubmocdelaes(tneVtceriD

yllatnozirohgnitanimretepipek

atniriadnaepip

rofsnoitarteneplaudividnihtiw)llawedisahguorht(

.slanimretdnagnipipekatniriadnatneveht

oN2

elbaTeeS.I

Table 3: Burnham Vent System and Air Intake System Components

Table 2: Vent System Components Included with Boiler

stnenopmoCmetsyStneVrebmuNtraP

"3lanimreTtneVdeteksaG

)7-GCSurht3-GCS(latnoziroH 1070118

"4lanimreTtneVdeteksaG

)9GCS&8-GCS(latnoziroH 20

70118

"3-ekatnIriAcsiD

)4-GCS&3-GCS( 5406116

"4-ekatnIriAcsiD

)6-GCS&5-GCS( 9406116

"5-ekatnIriA

)9-GCSurht7-GCS( 3606116

Table 4: Vent/Air Intake Length

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tnelaviuqE

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tF1xepiP.aiD"3U6926118 1

tF1xepiP.aiD"410-671001

tF3xepiP.aiD"3U8926118 3

tF3xepiP.aiD"410-771001

tF5xepiP.aiD"

3U0036118 5

tF5xepiP.aiD"410-871001

elbatsujdAxepiP.aiD"3U9136118 otlauqE**

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elbats

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woblE°09.aiD"3U4926118 5

woblE°09.aiD"410-081001

woblE°54.aiD"3U2926118 5

woblE°54.aiD

"410-181001

eeTniarDlatnoziroH.aiD"3U2036618 ½7

eeTniarDlatnoziroH.aiD"410-281001

eeTniarDlacitreV.aiD"3U4036

118 ½7

eeTniarDlacitreV.aiD"410-381001

elbmihTllaWelgniS"36116118 ---

elbmihTllaWelgniS"410-481001

elbmihTllaW

elbuoD"35116118 ---

elbmihTllaWelbuoD"410-581001

metsySekatnI

stnenopmoC

)srehtOybstraP(

tnelaviuqE

*epiPfoteeF

tF1xepiPDI"5ro,"4,"31

tF2xepiPDI"5ro,"4,"32

tF4xepiPDI"5ro,"4,"34

tF5xepiPDI"5ro,"4,"35

woblE°09"4ro,"35

woblE°

54"4ro,"35

woblE°09"56

woblE°54"56

nodesaBepiPfoteeFtnelaviuqE*

ngiseDepiPekomS"4dradnatS

ledoM

epiPekatnIriA"3

).tF.viuqE(

epiPekatnIriA"4

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.niM.xaM.niM.xaM.niM.xaM.niM.xaM.niM.xaM

4-GCS&3-GCS805----------------805--------

6-GCS&5-GCS--------805--------805--------

7-GCS----------------805805--------

9-GCS&8-GCS-----

-----------804--------804

A. Vent Guidelines Due to Removal of an Existing

Boiler

For installations not involving the replacement of an

existing boiler, proceed to Step B.

When an existing boiler is removed from a common

venting system, the common venting system is likely

to be too large for proper venting of the remaining

appliances. At the time of removal of an existing

boiler, the following steps shall be followed with each

appliance remaining connected to the common venting

system placed in operation, while the other appliances

remaining connected to the common venting system are

not in operation:

1. Seal any unused openings in the common venting

system.

2. Visually inspect the venting system for proper

size and horizontal pitch and determine there is no

blockage or restriction, leakage, corrosion, and other

deﬁ ciencies which could cause an unsafe condition.

3. Insofar as is practical, close all building doors and

windows and all doors between the space in which

the appliances remaining connected to the common

venting system are located and other spaces of the

building. Turn on clothes dryers and any appliance

not connected to the common venting system.

Turn on any exhaust fans, such as range-hoods and

bathroom exhausts, so they will operate at maxi mum

speed. Do not operate a summer exhaust fan. Close

ﬁ replace dampers.

4. Place in operation the appliance being inspected.

Follow the Lighting (or Operating) Instructions.

Adjust thermo stat so appliance will operate

continuously.

5. Test for spillage at the draft hood relief opening

after ﬁ ve (5) minutes of main burner operation. Use

the ﬂ ame of a match or candle, or smoke from a

cigarette, cigar or pipe.

6. After it has been determined that each appliance

remain ing connected to the common venting system

properly vents when tested as outlined above, return

doors, win dows, exhaust fans, ﬁ replace dampers and

any other gas burning appliance to their previous

conditions of use.

7. Any improper operation of the common venting

system should be corrected so the installation

conforms with the National Fuel Gas Code, NFPA

54/ANSI Z223.1. When resizing any portion of the

common venting system, the common venting

system should be resized to approach the minimum

size as determined using the appropriate tables in

Part II in the National Fuel Gas Code, NFPA 54/

ANSI Z223.1.

B. General Guidelines

1. Vent system installation must be in accordance

with National Fuel Gas Code, NFPA 54/ANSI

Z221.3 or applicable provisions of local building

codes. Contact local building or ﬁ re ofﬁ cials about

restrictions and installation inspection in your area.

2. The SCG is designed to be installed as either

a Direct Vent boiler or Power Vent boiler. In

the Direct Vent conﬁ guration all of the air for

combustion is supplied directly to the burner

enclosure from outdoors and ﬂ ue gases are vented

directly outdoors (through wall or roof). In the

Power Vent conﬁ guration, room air provides air

for combustion and ventilation. Flue gases are still

vented directly outdoors (through wall or roof).

Note: Venting requirements change if indoor air is

used.

3. Refer to the appropriate drawings in this section of

this manual to determine the proper conﬁ guration of

venting system. See Table 1.

4. This appliance requires a Special Gas Vent. The

product is designed to use Burnham supplied

AL 29-4C® Stainless Steel vent system components.

The following manufacturers offer similar

AL 29-4C® components and are approved for use

with this product. Heat-Fab Inc. - Saf-T-Vent, Flex-L

International Inc. - Star-34, Z-Flex U. S., Inc. -

Z-Vent, and Protech Systems , Inc.- FasNSeal™ or

equivalent. The use of these alternate manufacturer’s

venting systems will require adapters to connect

to the Burnham supplied vent connector and vent

terminal. These adapters are not supplied with this

unit and should be obtained from the supplier of

the alternate manufacturer’s venting system. See

Table 3 for complete list of Burnham Vent System

Components.

5. Horizontal vent pipe must maintain a minimum ¼

inch per foot slope down towards boiler.

6. Use noncombustible ¾ inch pipe strap to support

horizontal runs and maintain vent location and

slope while preventing sags in pipe. Do not restrict

thermal expansion or movement of vent system.

Maximum support spacing is ﬁ ve (5) feet. Do not

penetrate any part of the vent system with fasteners.

7. Vent length restrictions are based on equivalent

length of vent/air pipe (total length of straight

pipe plus equivalent length of ﬁ ttings). Maximum

vent/air lengths are listed in Table 4. Do not exceed

maximum vent/air intake lengths. Table 3 lists

equivalent lengths for ﬁ ttings. Do not include vent/

air terminals in equivalent feet calculations.

8. Provide and maintain vent pipe minimum clearances

to combustible materials. Vent pipe minimum

clearance to combustible material is four (4) inches

when vent is installed in a fully enclosed (chase)

application or three (3) inches when vent is installed

with at least one side open, similar to a joist bay

application. Use double wall thimble [Burnham

Part No. 8116115 (3”), 100185-01 (4”)] when

penetrating a combustible wall.

9. Do not install venting system components on

the exterior of the building except as speciﬁ cally

required by these instructions. The vent termination

location is restricted as follows:

a. Minimum twelve (12) inches above grade plus

normally expected snow accumulation level, or

seven (7) feet above grade if located adjacent

to public walkway. Do not install over public

walkway where local experience indicates

appliance ﬂ ue gas vapor or condensate creates a

nuisance or hazard.

b. Minimum three (3) feet above any forced air

inlet located within ten (10) feet.

c. Direct Vent - Minimum one (1) foot below, one

(1) foot horizontally from, or one (1) foot above

any door, window, or gravity air inlet.

Power Vent - Minimum four (4) feet below, four

(4) feet horizontally from, or four (4) feet above

any door, window, or gravity air inlet.

d. Minimum four (4) feet horizontally from electric

meters, gas meters, regulators, and relief valves.

This distance may be reduced if equipment is

protected from damage due to condensation or

vapor by enclosure, overhangs, etc.

e. Minimum twelve (12) inches from overhang or

corner of building.

10. Enclose vent passing through occupied or

unoccupied spaces above the boiler with material

having a ﬁ re resistance rating of at least equal to the

rating of the adjoining ﬂ oor or ceiling. Maintain

minimum clearances to combustible materials. See

Figure 1.

Note: For one or two family dwellings, ﬁ re

resistance rating requirement may not need to be

met, but is recommended.

11. Plan venting system to avoid possible contact with

plumbing or electrical wires. Start at vent connector

on top of boiler and work towards vent terminal.

12. Once a vent pipe manufacturer and system is chosen

never mix and match vent systems.

13. If a non-standard length pipe is required:

Gasketed Vent System: The use of the adjustable

length pipe (P/N 8116319U) is recommended to

complete a non-standard pipe length. This pipe

requires a minimum installed length of 12¾ inch

and can adjust across a 7 inch gap up to a maximum

of 19¾ inch long. (Note for the adjustable pipe

the installed length should be measured from the

centerline of the bead on the male end of the ﬁ rst

pipe to the end of the female pipe excluding the

locking band of the second pipe with a single

gasket.) Only in the event the adjustable length pipe

is not sufﬁ cient a standard length pipe may be cut

using the procedure outlined below for the Gasket-

Less Vent System.

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C. Install Vent Pipe, Burnham Gasketed Vent System.

1. Procedure for Joining Burnham Gasketed Vent Pipe

and Fittings. See Figure 3.

Figure 3: Burnham Gasketed Vent Joint Detail

a. Wipe the male end of each joint using an alcohol

pad to remove any dirt and grease.

b. Align weld seams in pipes and use a slight

twisting motion to FULLY insert male end into

female end of joint. Ensure bead in male end

of pipe is below locking band and rest against

the end of the female pipe. Verify the factory-

installed gasket is not dislodged or cut.

c. Tighten locking band by HAND with a 5/16”

nut driver until snug plus ¼ turn. DO NOT

SECURE JOINTS WITH SHEET METAL

SCREWS OR POP RIVETS. DO NOT

PUNCTURE THE VENT SYSTEM!

d. Once the installation is complete, operate

appliance and inspect all joints to ensure that ﬂ ue

gases and/or liquid condensate will not escape.

D. Separate Horizontal Venting System. See Figures 4,

5A and 5B.

Vent Piping –

1. This boiler is supplied with components as standard

equipment for installation of the separate horizontal

venting system.

2. Do not exceed maximum vent/air intake lengths.

Refer to Table 4.

3. Recommended horizontal installation consists of

vent being sloped down ¼ inch per foot away from

boiler. See Figure 4.

4. Use appropriate designed thimbles when passing

through combustible walls (thimble use optional for

noncombustible walls). Insert thimble through wall

from outside. Secure outside ﬂ ange to wall with

nails or screws, and seal ID, OD and vent holes with

sealant material. Install inside ﬂ ange to inside wall,

secure with nails or screws, and seal with sealant

material.

5. For noncombustible wall application when thimble

is not used, size opening such that bell with locking

band attached cannot pass through.

6. Join vent terminal to vent pipe. See Figures 5A and

5B.

7. Insert vent pipe through thimble/opening from

outside and join to vent system. Apply sealant

between vent pipe and opening/thimble to provide

weathertight seal.

Air Intake piping - See Figures 4, 5A and 5B.

8. Locate air intake termination on the same wall as

the vent termination if possible, to prevent nuisance

boiler shutdowns. However, boiler may be installed

with vertical venting and sidewall combustion air

inlet or visa versa, if installation conditions do not

allow alternate arrangement.

9. Do not exceed air intake length. See Table 4.

10. Use single wall metal or PVC pipe.

a. Air intake pipe diameter is based on boiler size.

SCG-3 & SCG-4 uses 3 inch diameter piping.

SCG-5 & SCG-6 uses 4 inch diameter piping.

SCG-7 thru SCG-9 uses 5 inch diameter piping.

11. Air intake termination must be located:

Horizontal - At least twelve (12) inches above

grade plus the expected snow accumulation.

12. Start at collar on burner enclosure (inside boiler

jacket) and work towards the air intake terminal.

13. Maintain minimum of ¼ inch per foot slope on

horizontal runs. Slope towards air inlet terminal

when possible. If not, slope towards boiler.

14. The air intake pipe must be adequately supported

with straps or supports no less than ﬁ ve (5) feet

apart on horizontal runs. The complete air intake

piping system must be rigid and able to withstand

minor impacts without collapse.

15. Inlet air pipe penetration:

Horizontal - Size wall penetration to allow easy

insertion of air inlet piping. Seal around pipe with

sealant to form weathertight exterior joint.

16. Seal all joints airtight, using silicone caulk or self-

adhesive aluminum tape.

17. Install Air Intake Terminal:

Horizontal - Remove four (4) screws from cover

plate and remove cover plate from terminal. Insert

intake piping into intake terminal collar. Secure

terminal to intake piping and seal joint with silicone

caulk or self-adhesive aluminum tape. Apply

continuous bead of silicone caulk around the back

of the intake terminal, approximately ¼ inch from

its edge. Push inlet terminal inward until terminal’s

back ﬂ ange is against the wall surface. Secure the

terminal with noncorrosive fasteners (stainless steel,

brass or aluminum) to the wall. Reinstall the cover

plate with four (4) screws. Apply a bead of silicone

caulk to perimeter of intake terminal’s back ﬂ ange

to provide a weathertight seal.

Figure 4: Recommended Separate Horizontal – Vent/Air Intake Installation

Figure 4B: Alternate Separate Horizontal – Vent/Air Intake Installation

Figure 5A: Separate Horizontal – Vent/Air Intake Terminal Conﬁ guration (SCG-3 thru 7)

Figure 5B: Separate Horizontal – Vent/Air Intake Terminal Conﬁ guration (SCG-8 and 9)

Vertical Venting –

1. Do not exceed maximum vent lengths. Refer to

Table 4.

2. Installation of a vertical vent tee 8116304U is

required on all vertical vent applications. See

Figures 6 and 7. Attach vertical vent drain tee

directly to elbow or horizontal pipe from an elbow

immediately after vent connector.

3. Slope horizontal runs minimum ¼ inch per foot.

Slope towards vertical vent drain tee. Position weld

seams in vent pipes, in all horizontal runs, at the top

to avoid condensate from lying on the seams.

4. Install ﬁ re stops where vent passes through ﬂ oors,

ceilings or framed walls. The ﬁ re stop must close

the opening between the vent pipe and the structure.

5. Whenever possible, install vent straight through

the roof. Refer to Figure 7 if offset is necessary.

Maintain minimum clearance to combustible

materials.

6. Install Vent Terminal.

a. Size roof opening to maintain minimum

clearance from combustible materials.

b. Extend vent pipe to maintain minimum vertical

and horizontal distance of twelve (12) inches

from roof surface. Allow additional vertical

distance for expected snow accumulation.

Provide brace as required. Refer to Figures 8A

and 8B.

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c. Install storm collar on vent pipe immediately

above ﬂ ashing. Apply Dow Corning Silastic 732

RTV Sealant between vent pipe and storm collar

to provide weathertight seal.

d. Attach vent terminal.

Vertical Air Intake Piping –

7. Do not exceed maximum air intake length. Refer to

Table 4.

8. Locate air intake termination on the same roof

location as the vent termination if possible, to

prevent nuisance boiler shutdowns. However, boiler

may be installed with vertical venting and sidewall

combustion air inlet or visa versa, if installation

conditions do not allow alternate arrangement.

9. Use single wall metal pipe or PVC and ﬁ ttings

available at most heating distributors.

a. Air intake pipe diameter is based on boiler size.

SCG-3 & SCG-4 uses 3 inch diameter piping.

SCG-5 & SCG-6 uses 4 inch diameter piping.

SCG-7 thru SCG-9 uses 5 inch diameter piping.

10. Air intake termination must be located:

Vertical - At least twelve (12) inches above the roof

surface plus the expected snow accumulation.

11. Start at collar on burner enclosure (inside boiler

jacket) and work towards the air intake terminal.

12. Maintain minimum of ¼ inch per foot slope on

horizontal runs. Slope down towards boiler.

13. The air intake pipe must be adequately supported

with straps or supports no less than ﬁ ve (5) feet

apart on horizontal runs. The complete air intake

piping system must be rigid and able to withstand

minor impacts without collapse.

14. Inlet air pipe penetration:

Vertical - Size roof opening to allow easy insertion

of inlet piping and allow proper installation of

ﬂ ashing and storm collar.

a. Use appropriately designed vent ﬂ ashing

when passing through roofs. Follow ﬂ ashing

manufacturers’ instructions for installation

procedures. Flashing manufacturers are Air-

Jet, American Metal Products, Metal Fab, and

Simpson Dura-Vent.

b. Extend air intake pipe to maintain minimum

vertical and horizontal distance of twelve

(12) inches from roof surface. Allow

additional vertical distance for expected snow

accumulation. Provide brace as required. Refer

to Figures 8A and 8B.

c. Vertical air intake requires ﬂ ashing and a storm

collar to prevent moisture from entering the

structure.

E. Separate Vertical Venting System - See Figures 6, 7, 8A, 8B and 9.

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d. Install storm collar on air intake pipe

immediately above ﬂ ashing. Apply Dow

Corning Silastic 732 RTV Sealant between

air intake pipe and storm collar to provide

weathertight seal.

e. All exposed air intake piping must be

constructed of corrosion resistant material such

as aluminum, stainless steel or PVC.

15. Seal all joints airtight, using silicone caulk or self-

adhesive aluminum tape.

16. Install Air Intake Terminal:

Vertical - Insert intake piping into intake terminal

collar. Secure terminal to intake piping and seal

joint with silicone caulk.

Figure 7: Attic OffsetFigure 6: Vertical Vent Installation

Figure 8A: Vertical Vent/Air Termination (3” Vent Terminal)

Extend Vent/Air Intake Piping to maintain minimum vertical (“X”) and minimum horizontal (“Y”) distance of twelve (12) inches from

roof surface. Allow additional vertical (“X”) distance for expected snow accumulation.

Figure 8B: Vertical Vent/Air Termination (4” Vent Terminal)

Extend Vent/Air Intake Piping to maintain minimum vertical (“X”) and minimum horizontal (“Y”) distance of twelve (12) inches from roof surface. Allow ad-

ditional vertical (“X”) distance for expected snow accumulation.

Figure 9: Vertical Air Intake Piping

F. Combination Horizontal Venting System –SCG-3 Through SCG-6 ONLY – See Figures 10 and 11.

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1. Do not exceed maximum vent/air intake lengths.

Refer to Table 4.

2. Install Combination Vent/Air Terminal. See Figure 11.

a. After determining the location with reference to Section B - General Venting Guidelines, cut a 6-1/8 inch square

opening in the wall for the air box sub-assembly which is 6 inch square.

b. Remove and save shipping screw from end panel with collar and vent pipe assembly. This will be reinstalled in a later

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c. From exterior of building, insert air box sub-

assembly into square opening. Push air box

inward until wall ﬂ ange is against wall, check

for level and mark the location of the four (4)

securing holes on the exterior wall. Remove air

box from wall.

d. Drill four (4) pilot holes, properly sized for the

non-corrosive fasteners (stainless steel, brass, or

aluminum) to be used to secure the wall ﬂ ange to

the exterior wall. (Securing screws not supplied

with kit.)

e. Attach four (4) 1/2 inch long threaded aluminum

spacers to the outer ﬂ anges of the exterior

wall ﬂ ange with four (4) number 10 - 32 x 1/4

inch stainless steel machine screws provided.

(See Figure 11.)

f. Apply a 1/4 inch thick continuous bead of

silicone caulk to perimeter of exterior wall

ﬂ ange’s back surface to provide a weathertight

seal.

g. Reinstall air box sub-assembly into opening in

exterior wall and secure to wall.

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h. Apply a bead of silicone caulk to perimeter of

wall ﬂ ange, where the wall and ﬂ ange join. Use

a tool or your ﬁ nger and apply pressure while

smoothing caulking to provide a weathertight

seal.

i. From interior of building, insert end panel with

collar and vent pipe assembly into open end of

air box sub-assembly. (See Figure 11.)

j. Secure end panel to air box sub-assembly with

shipping screw and thirteen (13) number 8 sheet

metal screws provided.

k. From exterior of building, position 10 inch

square exterior wall cover over exterior wall

ﬂ ange. Insert 3 inch diameter vent pipe into

center opening in terminal cover. Align four

(4) holes on cover with 1/2 inch long threaded

spacers on wall ﬂ ange. Secure terminal cover

with four (4) number 10 - 32 x 1/4 inch stainless

steel machine screws provided.

l. Apply a bead of silicone caulk to perimeter of

plate-seal and around pipe. Secure plate-seal to

exterior cover with six (6) #8 stainless steel sheet

metal screws provided. Smooth caulk around

plate-seal and pipe to provide weathertight seal.

m. Install Vent Terminal supplied with boiler to vent

pipe penetrating through terminal cover. Join

terminal and pipe with locking band and seal

with RTV (see Figure 3).

3. Install Vent Piping. See Figure 10 and 11.

a. Start at vent connector on boiler and work

towards combination vent/air terminal.

b. Installation of a vertical vent tee 8116304U is

required on all vertical vent applications. See

Figures 12 and 13. Attach vertical vent drain

tee directly to elbow or horizontal pipe from an

elbow immediately after vent connector.

c. Slope horizontal runs minimum ¼ inch per foot.

Slope towards vertical vent drain tee. Position

weld seams in vent pipes, in all horizontal runs,

at the top to avoid condensate from lying on the

seams.

d. Use 3/4 inch pipe strap to support horizontal runs

and maintain vent location and slope. Maximum

support spacing is ﬁ ve (5) feet.

e. Install vent piping to connect vent connector

on boiler and combination vent/air terminal.

Reference Section B - General Venting

Guidelines for proper procedure for joining pipe

and ﬁ ttings.

f. Connect vent piping to combination vent/air

terminal. See Figure 10.

4. Install Air Intake Piping. See Figures 10 and 11.

a. Do not exceed air intake length. See Table 4.

b. Use single wall metal pipe or PVC and ﬁ ttings

available at most heating distributors.

c. Air intake pipe diameter is based on boiler size.

SCG-3 & SCG-4 uses 3 inch diameter piping.

SCG-5 & SCG-6 uses 4 inch diameter piping.

SCG-7 thru SCG-9 uses 5 inch diameter piping.

d. Start at collar on burner enclosure (inside boiler

jacket) and work towards the combination vent/

air terminal.

e. Maintain minimum of 1/4 inch per foot slope on

horizontal runs. Slope down towards boiler.

f. The air intake pipe must be adequately supported

with straps or supports no less than ﬁ ve (5)

feet apart on horizontal runs. The complete air

intake piping system must be rigid and able to

withstand minor impacts without collapse.

g. Connect Air Intake Piping to Combination Vent/

Air Terminal. See Figure 10.

NOTE: When installing 3 inch diameter air intake

piping for a SCG-3 or SCG-4 application, the use of

a 4 inch x 3 inch reducer will be required to connect

air intake piping to combination vent/air terminal.

(Reducer included with combination horizontal

venting kit).

h. Seal all joints airtight, using silicone caulk or

self-adhesive aluminum tape.

Figure 10: Combination Horizontal – Vent/Air Installation (SCG-3 thru 6)

Figure 11: Combination Horizontal – Vent/Air Terminal Installation (SCG-3 thru 6)

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1. Saf-T Vent SC is an advanced concentric vent

system designed for zero clearance installation

in residential applications. The inner wall is

constructed from superferritic AL29-4C® stainless

steel. The outer wall is also constructed from

stainless steel, providing durability and a lasting

ﬁ nish.

2. As a Special Gas Vent system: Saf-T Vent is

approved for use on ANSI Category I, II, III, and

IV Gas-Burning Appliances and certain Direct Vent

Appliances. Saf-T Vent SC is appropriate for use on

appliances that specify an AL29-4C venting system.

3. As a Sealed Combustion system: The unique

concentric design of Saf-T Vent SC also allows it

to function as a pipe-in-a-pipe vent. Products of

combustion are exhausted out through the inner wall

while combustion air is drawn in through the outer

wall. An appliance can be direct-vented with only

a single penetration through the building structure.

This application must be approved by the

Appliance Manufacturer.

Note: Saf-T Vent SC includes an integral seal and

does not require RTV sealant. However, sealant

may be necessary when connecting Saf-T Vent SC

components directly to certain appliance ﬂ ue collars

and to the gasket-less Saf-T Vent GC and Saf-T Vent

CI vent systems.

For applications up to 550°F/288°C, approved

sealants include GE RTV 106 and Dow Corning

736.

For applications up to 300°F/149°C, approved

sealants include GE RTV 106 and Dow Corning

732.

4. Pre-Installation Considerations:

• Proper planning prior to installation is essential

as to avoid possible contact with concealed

plumbing or electrical wiring inside walls,

ﬂ oors or ceilings as well as maintaining proper

clearances. Be sure to plan a sufﬁ cient number

of supports for the entire system that will

maintain the required straight-line pitch and hold

the system in place. A continuous straight-line

pitch of at least ¼” (2°) to the foot on horizontal

runs must be maintained in order to properly rid

the system of the corrosive condensate.

5. General Installation Requirements:

• Saf-T Vent SC vent sections, or other Saf-T

Vent products, must be used throughout the

entire length of the system. Alternatives such

as galvanized pipe, PVC, nonmetallic pipe,

prefabricated chimney, ﬁ eld-fabricated vents

or Type B vent sections must not be used. Do

not mix pipes, ﬁ ttings, or joining methods from

different manufacturers.

• More than one appliance may not be

interconnected to any part of the venting system.

• Any penetrations of ceilings, ﬂ oors or walls must

be properly ﬁ re-stopped.

• Whenever gas-burning equipment is installed in

the same space where halogenated substances

may exist (refrigerants, solvents, bleaches,

salts, etc.), clean outside air must be utilized for

combustion.

• The vent system shall not be routed into,

through or within any other actively used vent or

chimney.

• Seal weather exposed joints of the outer jacket

with foil tape or an exterior grade silicone

sealant.

• Combustible Material is any material made of

or surfaced with wood, compressed paper, plant

ﬁ bers, or other materials that are capable of

being ignited or burned. Such material shall be

considered combustible even though it is ﬂ ame-

proofed, ﬁ re-retardant, or plastered. (Source:

NPFPA54/ANSI Z223.1-1999.)

• Non-Combustible Material is any material that

is not capable of being ignited and burned, such

material consisting entirely of, or a combination

of, steel, iron, brick, tile, concrete, slate,

asbestos, glass and plaster. (Source: NPFPA54/

ANSI Z223.1-1999.)

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Clearances to Combustibles:

• For a venting system that extends through

any zone above that on which the connected

appliance is located (except for one and two

family dwellings), the vent system shall be

enclosed with an enclosure having a ﬁ re

resistance rating equal to or greater than that of

the ﬂ oor or roof assemblies through which it

passes.

• Design any enclosure to permit inspection of the

system.

• Do not place any type of insulation in any

required clearance spaces surrounding the vent

system.

6. Vertical Installation Requirements:

a. Seal weather exposed joints of the outer jacket

with foil tape or an exterior grade silicone

sealant.

b. The vent system must terminate at least 3 feet

above the roof line and at least 2 feet higher than

any portion of the building within 10 feet.

c. When terminated at a height of more than 6 feet

the stack must be supported by a support bracing.

The vent should be supported every 10 feet.

d. The total continuous distance of the vent system

from the appliance ﬂ ue collar to the termination

shall not exceed that speciﬁ ed in the appliance

manufacturer’s installation instructions.

e. In cold climates do not install a condensate drain

on the exterior of the building. Doing so may

result in dangerous icy conditions on surfaces

near the drain and may cause damage to the vent

system and/or the building exterior.

f. Install supports every 10 feet vertically along the

vent pipe route. Vertical supports are required

after every transition to vertical and are required

after every offset elbow. When the vent is free

standing and penetrates a roof/ceiling another

means of support must be used at a second

location. Refer to the Vertical Supports section

in this manual.

7. Joint Assembly Instructions:

a. Before joining the sections or ﬁ ttings together, use an alcohol pad to wipe the joint area of both ends of the inner

pipe. This will remove any foreign matter which may affect the integrity of the seal. Install the system with the

female ends (ends with the red seal) pointing away from the appliance. (Unless speciﬁ ed differently by the appliance

manufacturer.)

b. Insert the male end of the inner pipe into the female end of the previous section. In extremely dry conditions it may be

helpful to moisten the seal with clean water prior to assembly. Push ﬁ rmly until the outer jacket has made contact with

the snap ring located inside the female end of the previous section. When fully assembled the outer female end will

overlap the male end 1”.

c. Use the three (3) self-tapping screws provided to connect the outer vents. No pre-drilling is required.

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8. Straight Sections Cut To Length:

If a custom length of SC is necessary, a standard vent

section can be cut.

a. Measure the distance of the length needed, taking the

measurement from the end of one of the outer jackets

to the beginning of the other outer jacket on the

section to connect to, (A to B on diagram).

b. Select a section that is longer than the required

length.

c. It will be necessary to disassemble the vent prior to

cutting.

Stand the section on end with the holes up. Find the

end of snap ring and pry it out of its groove, being

careful not to damage the ends of the vent pipes.

Pull up on end of the snap ring and pull it out from

the end of the pipe. It may want to spiral out as it is

removed. After the snap ring is removed, the inner

vent pipe can be separated from the outer jacket.

d. Add 2” to the distance measured previously for the

cut length of the outer jacket. Mark a cut line on the

outer jacket on the male end (the end without holes in

it).

An effective way of marking is to run a length of tape

around the section, assuring a square cut.

e. Add 3” to the distance measured previously for the

cut length of the inner vent pipe. Mark a cut line on

the inner vent on the male end (the end without the

red seal).

The inner pipe is always cut 1” longer than the

outer pipe.

f. WEAR GLOVES, as cut ends are very sharp. Cut

the pipes with an abrasive cutoff saw, plasma cutter,

or compound snips. If using snips, start the cut at

the male end and follow a spiral path around the pipe

until the cutoff mark is reached. File off any burrs

or rough edges that develop in the cutting process

and clean off any dust or grit. If the cutting process

distorts the roundness of the pipes, carefully use your

thumbs to re-round the ends.

g. Reassemble the inner vent into the outer jacket and

reinstall the snap ring into the groove. Push the

inner vent into the outer jacket until the triangle on

the inner vent is seated ﬁ rmly against the bead on

outer jacket. Start one end of the snap ring into the

groove of the outer pipe. Slowly turn and feet the

snap ring into the groove in a spiral motion, and

continue around the pipe until the snap ring is fully

inserted. Ensure that the triangle on the inner vent is

all the way down against the bead of the outer jacket

by pushing in ﬁ rmly. Also ensure that the snap ring

is completely in the groove all the way around outer

jacket.

9. Air Intake Connections for Direct Vent and Sealed

Combustion Appliances*:

The Air Intake Tee may be used on approved direct vent

and sealed combustion appliances that have separate (non-

concentric) air intake and ﬂ ue exhaust collars. The male end

of the tee connects to EZ Seal appliance adapters and the tee

takeoff/snout connects to the appliance air intake.

• Insert the male end of the Air Intake Tee into the female

end of the EZ Seal vent section or appliance adapter and

complete the ring and tab connection.

• Insert the male end of the next SC section into the female

end of the Air Intake Tee and secure as described elsewhere

in this manual.

• Connect the tee takeoff to the appliance combustion air inlet

using appropriate hose or pipe.

* Direct Vent Appliances are constructed and installed so that

all air for combustion is supplied directly from the outside

atmosphere. The passage for the combustion air is allowed

a small amount of leakage in the building environment. No

special installation considerations are required to use Saf-T

Vent SC on Direct Vent appliances unless speciﬁ ed by the

appliance manufacturer. Sealed Combustion appliances are

similar to Direct Vent except the combustion air passage must

be sealed to prevent leakage within the building envelope.

When Saf-T Vent SC is used on approved Sealed Combustion

appliances the joints of the outer jacket must be sealed with

a foil tape (example: 3M 425), or approved silicone sealant

(example: Dow Corning 732).

10. Condensate Drains:

When An Internal Condensate Drain is NOT Part of the

Appliance:

• A Saf-T Vent SC In-Line Drain Section is strongly

recommended. Install this drain ﬁ tting as close to the

appliance ﬂ ue collar as possible.

• A condensate drain is required for every 30 feet of

horizontal vent and at/near the bottom of a vertical stack.

• Use the In-Line Drain Section for a straight horizontal or

vertical run. When used horizontally, rotate the ﬁ tting so that

the drain tube is as vertical as possible.

• A Condensate Drain Tube Kit is available to direct the

condensate to an appropriate location, i.e. ﬂ oor drain or

vented sanitary sewer connection. A trap loop must be

formed into the drain hose and must be a diameter that is

at least four (4) times the appliance’s rated stack pressure

in inches of water column or 3 inches, whichever is

greater. Secure the loop with a cable tie. Prior to ﬁ nal

assembly the trap loop must be ‘primed’ by pouring a

small quantity of water into the drain hose. Inspect at least

annually to verify the trap is ‘primed’.

• Follow all local and national codes and regulations for the

draining of acidic condensate.

• In cold climates do not install a condensate drain on the

exterior of the building. Doing so may result in dangerous

icy conditions on surfaces near the drain and may cause

damage to the vent system and/or the building exterior.

11. Horizontal Supports:

Saf-T Vent SC must have supports for every six (6) feet of horizontal run and after every transition from vertical to

horizontal. Support hangers by themselves do not maintain the necessary clearances to combustible materials; be sure to

consider clearances when planning the system.

The supports must be secured to solid material using at least #10 fasteners. Do not fasten supports to drywall sheathing

without using hollow wall anchors. The conduit supports must maintain the ¼” per foot pitch to avoid collection of

condensate in the vent. Position the vent so that the welded seam is on the top.

0” Clearance Support Clamp, (SC_ _SUP): Attach the bracket to the structure but do not tighten in place. Open the

hose clamp and slip it under the support bracket. Position the clamp between the mounting screws and rotate the clamp

so that the screw housing will be accessible after the vent is installed. Restart the threads on the hose clamp and securely

tighten the mounting screws to the structure. This can also be installed vertically.

1” Clearance Support Clamp, (SC_ _SUP1): Supports the vent at 1” clearance to the structure. Line up the support

mounting brackets so that the mounting screws will follow the center line of the vent section. This can also be installed

vertically.

Support Clamp, (4_ _27SS): Support clamps are sold in pairs and can be clamped around the vent and suspended from a

rod or cable. They can be used singularly as a saddle clamp to rest the vent in and suspended from two (2) rods or cables.

Support Legs Rotated Horizontally: Support legs can be used on horizontal runs by rotating the clamp at the rivet

connection. The legs can be cut to shorter lengths if necessary.

Vertical Supports, (SC_ _VSL): Vertical support legs can be used above or below a structure for support. To install,

slide the support clamp over the end of the vent section, leaving the clamp loose. Position the support legs and install

two (2) screws through each leg into the structure. Tighten the clamp around vent pipe. The legs can be cut to shorter

lengths if necessary and can rotate around the support clamp at the rivet connection. By rotating the clamp to a horizontal

position the support legs can be used on horizontal runs.

Fire Stop/Wall Thimble/Support, (SC_ _FS):

• The Saf-T Vent SC Fire Stop can be used as a ﬁ restop, a wall thimble, or as a support plate.

• To use as a Wall Thimble prepare an opening according to the chart below. Remove any insulation from the opening,

using additional framing if necessary. Attach the plate over the center of the opening using appropriate fasteners.

• Install the vent section through the thimble plate and secure the section to the thimble by screwing the self-tapping

screws through the holes in the tabs on the plate and into the outer wall of the vent. Apply silicone sealant around the vent

section where it passes through the plate and around the plate where it is attached to the structure.

• To use as a Firestop before passing through ceilings or enclosed chases, prepare a round or square opening ¼” larger than

the outer jacket (5¼” for 3” vent or 7¼” for 4” vent). Remove any insulation from the opening. Secure the ﬁ restop to

the structure at the four (4) corners. Install the vent section through the ﬁ restop and secure to the thimble by screwing the

self-tapping screws through the holes in the tabs on plate and into outer wall of the vent. This method can also be used to

support the vent section either vertically or horizontally.

Tall Cone Flashing:

Directly On Roof or Curb:

Tall Cones are available for ﬂ at (SC_ _TCF), 2/12 pitch (SC_ _TCFA), and 6/12 - 12/12 pitch roofs (SC_ _TCFB).

Prepare a square or round opening at least 1/4” larger than the outer jacket (5¼” for 3” vent or 7¼” for 4” vent). Remove

any insulation from the opening. Apply weather-stripping or outdoor caulk to the bottom of the cone plate and attach the

plate to the roof using common construction methods. Flash over the cone plate and seal the fastener heads using normal

rooﬁ ng requirements. When the vent pipe is in place through the Tall Cone, attach a storm collar (sold separately) around

the pipe. Apply high temperature silicone sealant around the pipe where it passes through the top of the storm collar.

Continue to install vent sections as needed to meet the height requirements by code. Seal weather exposed joints of the

outer jacket with foil tape or an exterior grade silicone sealant.

Vertical Terminations, (SC_ _VT): Install the vertical termination adapter into the last vent section and secure with the

three (3) self-tapping screws provided. If the exhaust termination needs to be extended, a section of EZ Seal vent can be

connected directly to the vertical termination adapter. Seal weather exposed joints of the outer jacket with foil tape or

an exterior grade silicone sealant. To allow for inspection of the system, do not seal the exhaust termination.

Vertical –

10. Installation of a vertical vent tee 8116304U is

required on all vertical vent applications. See

Figure 6. Attach vertical vent drain tee directly to

elbow or horizontal pipe from an elbow immediately

after vent connector.

11. Install ﬁ re stops where vent passes through ﬂ oors,

ceilings or framed walls. The ﬁ re stop must close

the opening between the vent pipe and the structure.

Fire stop manufacturers are Air-Jet, American Metal

Products, Metal-Fab, and Simpson Dura-Vent.

12. Whenever possible install vent straight through roof.

Refer to Figure 13 if offset is necessary. Maintain

minimum clearance to combustible materials.

13. Install Vent Terminal.

a. Size roof opening to maintain minimum

clearance from combustible materials.

b. Use appropriately designed vent ﬂ ashing

when passing through roofs. Follow ﬂ ashing

manufacturers’ instructions for installation

procedures. Flashing manufacturers are Air-

Jet, American Metal Products, Metal Fab, and

Simpson Dura-Vent.

c. Extend vent pipe to maintain minimum vertical

and horizontal distance of twelve (12) inches

from roof surface. Allow additional vertical

distance for expected snow accumulation.

Provide brace as required. Refer to Figure 15.

d. Vertical venting requires ﬂ ashing and a storm

collar to prevent moisture from entering the

structure.

e. Install storm collar on vent pipe immediately

above ﬂ ashing. Apply Dow Corning Silastic 732

RTV Sealant between vent pipe and storm collar

to provide weathertight seal.

f. Attach vent terminal.

14. Install supplied air intake terminal onto collar of the

jacket enclosure. See Figure 16.

1. Do not exceed maximum vent length. Refer to

Table 4.

Horizontal –

2. Maintain minimum ¼ inch per foot slope in

horizontal runs.

3 Recommended horizontal installation consists of

vent being sloped down away from boiler. See

Figure 12.

4. Slope horizontal runs minimum ¼ inch per foot.

Slope towards vertical vent drain tee. Position weld

seams in vent pipes, in all horizontal runs, at the top

to avoid condensate from lying on the seams.

5. Use appropriately designed thimbles when passing

through combustible walls (thimble use optional

for noncombustible walls). Insert thimble through

wall from outside. Secure outside ﬂ ange to wall

with nails or screws, and seal with sealant material.

Install inside ﬂ ange to inside wall, secure with nails

or screws, and seal with sealant material.

6. For noncombustible wall application when thimble

is not used, size opening such that female (bell) end

with locking band attached cannot pass through.

7. Join vent terminal to vent pipe. Locate vent

terminal between seventeen (17) inches and twenty-

nine (29) inches from wall when joined to inside

vent piping. See Figure 14.

8. Insert vent pipe through thimble/opening from

outside and join to vent system. Apply sealant

between vent pipe and opening/thimble to provide

weathertight seal.

9. Join vent terminal to 45° elbow included in kit. Join

45° elbow/terminal assembly to vent pipe. Refer

to Section C for proper procedures for joining vent

pipe and ﬁ ttings. See Figure 3 .

H. Indoor Air Installation – See Figures 12, 13, 14, 15 and 16.

Figure 12: Recommended Separate Horizontal - Vent Installation

Figure 13: Alternate Separate Horizontal - Vent Installation

Figure 15: Indoor Air - Horizontal / Vertical Vent Terminal Installation

Extend Vent/Air Intake Piping to maintain minimum vertical (“X”) and minimum horizontal (“Y”) distance of twelve

(12) inches from roof surface. Allow additional vertical (“X”) distance for expected snow accumulation.

Figure 14: Optional Indoor Air - 3” or 4” Vent Terminal Installation

Figure 16: Indoor Air - Air Intake Terminal Installation

1. Do not exceed maximum vent/air intake lengths.

Refer to Table 4.

2. This installation will allow a maximum of ﬁ ve (5)

feet vertical exterior run of the vent/air intake piping

to be installed on separate horizontal venting and

indoor air horizontal venting.

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3. Install vent piping.

a. Install vent piping for desired venting system.

Refer to speciﬁ c section for details for vent pipe

installation.

b. After penetrating wall/thimble, install an

AL 29-4C® 90° elbow so that elbow leg is in the

up direction.

c. Install maximum of ﬁ ve (5) feet of AL 29-4C®

vent pipe. Refer to Sections C through E for

proper procedures for joining vent pipe and

ﬁ ttings.

I. Optional Exterior Separate Horizontal Vent/Air Intake Terminal Mounting – See Figures 17, 18, 19, 20, 21 and 22.

d. At top of vent pipe length install an AL 29-4C®

90° elbow so that elbow leg is opposite the

building’s exterior surface.

e. If installation requires indoor air, install

AL 29-4C® 45° elbow (provided in indoor air kit)

to upper AL 29-4C® 90° elbow so that leg of 45°

is in down direction (see Figure 21 or 22). If not

using indoor air, proceed to Step f.

f. Install horizontal vent terminal (provided with

boiler).

g. Brace piping if required.

4. Air Intake Piping (not required for indoor air).

a. Install air intake piping for desired venting

system. Refer to speciﬁ c section for details for

air intake installation.

b. After penetrating wall, install a corrosion

resistant 90o elbow so that elbow leg is in the up

direction.

c. Install maximum of ﬁ ve (5) feet of corrosion

resistant air intake pipe.

d. At top of air intake pipe install air intake

terminal (provided with boiler).

e. Brace piping if required.

Figure17: Optional Separate Horizontal Air 3” or 4” Intake Terminal Installation

Figure 18: Optional Separate Horizontal Air 5” Intake Terminal Installation

Figure 19: Optional Separate Horizontal 3” Vent Terminal Installation

Figure 20: Optional Separate Horizontal 4” Vent Terminal Installation

Figure 21: Optional Separate Horizontal 3” Vent Terminal Installation (Indoor Air)

Figure 22: Optional Separate Horizontal 4” Vent Terminal Installation (Indoor Air)

A. Design and install boiler and system piping to

prevent oxygen contamination of boiler water and

frequent water additions.

1. There are many possible causes of oxygen

contamination such as:

a. Addition of excessive make-up water as a result

of system leaks.

b. Absorption through open tanks and ﬁ ttings.

c. Oxygen permeable materials in the distribution

system.

2. In order to insure long product life, oxygen sources

must be eliminated. This can be accomplished by

taking the following measures:

a. Repairing system leaks to eliminate the need for

addition of make-up water.

b. Eliminating open tanks from the system.

c. Eliminating and/or repairing ﬁ ttings which allow

oxygen absorption.

d. Use of non-permeable materials in the

distribution system.

e. Isolating the boiler from the system water by

installing a heat exchanger.

f. Use properly designed and operating air

elimination devices in water piping.

B. Low Water Cut Off (LWCO) on Hot Water Boilers

(Optional)

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When

A low water cutoff is required to protect a hot water

boiler when any connected heat distributor (radiation)

is installed below the top of the hot water boiler (i.e.

baseboard on the same ﬂ oor level as the boiler). In

IV. Water Piping and Trim

addition, some jurisdictions require the use of a LWCO

with a hot water boiler.

Where

The universal location for a LWCO on both gas and oil

hot water boilers is above the boiler, in either the supply

or return piping. The minimum safe water level of a

water boiler is at the uppermost top of the boiler; that is,

it must be full of water to operate safely.

What Kind

The SCG boiler is designed to accept the wiring of the

Safgard Model 1100-H4 (P/N 45-1104) LWCO. This is

a probe type LWCO. The factory wiring is designed to

allow simple “Plug-in” installation of the wiring.

How to Pipe

A “tee” is commonly used to connect the probe LWCO

to the supply or return piping, as shown below.

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LWCO Location

Select the appropriate size tee using the LWCO

manufacturer’s instructions. Often, the branch

connection must have a minimum diameter to prevent

bridging between the probe and the tee. Also, the run

of the tee must have a minimum diameter to prevent

the end of the probe from touching or being located too

close to the inside wall of the run of the tee.

Ideally, manual shutoff valves should be located

above the LWCO and the boiler to allow for servicing.

This will allow probe removal for inspection without

draining the heating system. Many probe LWCO

manufacturers recommend an annual inspection of the

probe.

How to Wire

Ensure power is turned off to boiler.

Locate the LWCO jumper wire in the factory wiring

harness. Remove the jumper wire and install

the LWCO wiring from LWCO Model 1100-H4

(P/N 45-1100) into the plug of the SCG factory wiring.

How to Test

Shut off fuel supply. Lower water level until water

level is BELOW the LWCO. Generate a boiler demand

by turning up thermostat. Boiler should not attempt to

operate. Increase the water level by ﬁ lling the system.

The boiler should attempt to operate once the water

level is above the LWCO.

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C. Connect system supply and return piping to boiler.

See Figures 25 and 26. Maintain minimum ½ inch

clearance from hot water piping to combustible

materials.

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D. Install circulator with ﬂ anges, gaskets and bolts

provided. Circulator harness allows circulator to be

mounted on supply or return. Connect harness to

circulator and secure any excess conduit.

E. Install supply manifold, pressure/temperature gauge

and pressure relief valve.

See Figure 24. Pressure Relief Valve must be installed

with spindle in vertical position. Installation of the

relief valve must comply with the ASME Boiler and

Pressure Vessel Code, Section IV.

Figure 23: Recommended Piping for Combination

Heating & Cooling (Refrigeration) System

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F. Space heating and domestic water heating with

Alliance™ water heater. Install Alliance water heater as

a separate heating zone. Refer to Alliance Installation,

Operating and Service Instructions for additional

information.

G. If boiler is used in connection with refrigeration

systems, boiler must be installed with chilled medium

piped in parallel with the heating boiler using

appropriate valves to prevent chilled medium from

entering boiler, see Figure 23.

H. If boiler is connected to heating coils located in

air handling units where they may be exposed to

refrigerated air, boiler piping must be equipped with

ﬂ ow control valves to prevent gravity circulation of

boiler water during operation of cooling system.

I. Use a boiler bypass if the boiler is to be operated

in a system which has a large volume or excessive

radiation where low boiler water temperatures may be

encountered (i.e. converted gravity circulation system,

etc.).

Figure 24: Supply Water Manifold Piping

Install pipe tee between circulator and boiler return

along with second tee in supply piping as shown in

Figure 25 or 26. Bypass should be same size as the

supply and return lines with valves located in bypass

and supply outlet as illustrated in Figure 25 or 26 in

order to regulate water ﬂ ow to maintain higher boiler

water temperatures.

After the boiler is operational (reference Section VIII.

System Start-Up) set by-pass and boiler supply valves

to half throttle position to start. Operate boiler until

system water temperature reaches normal operating

range.

Adjust valves to provide 180° to 200°F supply water

temperature. Opening the boiler supply valve will raise

system temperature, while opening the by-pass valve

will lower system supply temperature.

J. A hot water boiler installed above radiation level

must be provided with a low water cutoff device as part

of installation.

K. If a low water cutoff is required, it must be mounted

in the system piping above the boiler. The minimum

safe water level of a hot water boiler is just above the

highest water containing cavity of the boiler; that is, a

hot water boiler must be full of water to operate safely.

L. Oil, grease, and other foreign materials which

accumulate in new hot water boilers and a new

or reworked system should be boiled out, and

then thoroughly ﬂ ushed. A local qualiﬁ ed water

treatment chemical specialist is a suggested source

for recommendations regarding appropriate chemical

compounds and concentrations which are compatible

with local environmental regulations.

M. After the boiler and system have been cleaned and

ﬂ ushed, and before reﬁ lling the entire system add

appropriate water treatment chemicals, if necessary, to

bring the pH between 7 and 11.

N. If it is required to perform a long term pressure

test of the hydronic system, the boiler should ﬁ rst be

isolated to avoid a pressure loss due to the escape of air

trapped in the boiler.

To perform a long term pressure test including the

boiler, ALL trapped air must ﬁ rst be removed from the

boiler.

A loss of pressure during such a test, with no visible

water leakage, is an indication that the boiler contained

trapped air.

Figure 25: Recommended Water Piping for Circulator Zoned Heating Systems

Figure 26: Recommended Water Piping for Zone Valve Zoned Heating Systems

V. Gas Piping

Table 5: Gas Ratings

For materials or conditions other than those listed

above, refer to National Fuel Gas Code, NFPA54/ANSI

Z223.1, or size system using standard engineering

methods acceptable to authority having jurisdiction.

Table 6: Speciﬁ c Gravity Correction Factors

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A. Size gas piping. Design system to provide adequate gas

supply to boiler. Consider these factors:

1. Allowable pressure drop from point of delivery to

boiler. Maximum allowable system pressure is ½

psig. Actual point of delivery pressure may be less;

contact gas supplier for additional information.

Minimum gas valve inlet pressure is stamped on

the rating label located in the boiler’s vestibule

compartment.

2. Maximum gas demand. Refer to the boiler’s input

as printed on it’s rating label. Also consider existing

and expected future gas utilization equipment (i.e.

water heater, cooking equipment).

3. Length of piping and number of ﬁ ttings. Refer to

Table 7 for maximum capacity of Schedule 40 pipe.

Table 8 lists equivalent pipe length for standard

ﬁ ttings.

4. Speciﬁ c gravity of gas. Gas piping systems for

gas with a speciﬁ c gravity of 0.70 or less can be

sized directly from Table 7, unless authority having

jurisdiction speciﬁ es a gravity factor be applied.

For speciﬁ c gravity greater than 0.70, apply gravity

factor from Table 6. If exact speciﬁ c gravity is not

shown choose next higher value.

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56.069.001.147.0

07.039.002.117.0

57.009.003.186.0

08.078.004.166.0

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6-GCS

7-GCS

8-GCS

9-GCS

Table 7: Maximum Capacity of Schedule 40 Pipe in CFH* For Gas Pressures of 0.5 psig or Less

Figure 27: Recommended Gas Piping

Table 8: Equivalent Lengths of Standard Pipe Fittings & Valves

B. Connect boiler gas valve to gas supply system.

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1. Use methods and materials in accordance with local

plumbing codes and requirements of gas supplier. In

absence of such requirements, follow National Fuel

Gas Code, NFPA 54/ANSI Z223.1.

2. Use thread (joint) compounds (pipe dope) resistant

to action of liqueﬁ ed petroleum gas.

3. Install sediment trap, ground-joint union and manual

shut-off valve upstream of boiler gas control valve

and outside jacket. See Figure 27.

* 1 CFH of Natural Gas is approximately equal to 1 MBH; 1 CFH of LP is approximately equal to 2.5 MBH; con-

tact your gas supplier for the actual heating value of your gas.

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0229091053037021052564059

033725158209579002573077

043603154200528071023066

056551151204437151582085

0605501591004668310620

07646908107316521042094

08340907105375811022064

09044806102335011502034

001839705150305301591004

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.D.I

sehcnIetaGebolGelgnA

gniwS

kcehC

°09

woblE

°54

woblE

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"½226.053.06.813.93.46.187.00.11.3

"¾428.044.01.325.113.51.279.04.11.4

"1940.165.04.927.418.66.232.18.13.5

"¼1083.147.06.833.919.85.306.13.29.6

4. All above ground gas piping upstream from manual

shut-off valve must be electrically continuous and

bonded to a grounding electrode. Do not use gas

piping as grounding electrode. Refer to National

Electrical Code, NFPA 70.

C. Pressure test. The boiler and its gas connection must

be leak tested before placing boiler in operation.

1. Protect boiler gas control valve. For all testing over

½ psig, boiler and its individual shutoff valve must

be disconnected from gas supply piping. For testing

at ½ psig or less, isolate boiler from gas supply

piping by closing boiler’s individual manual shutoff

valve.

2. Locate leaks using approved combustible gas

detector, soap and water, or similar nonﬂ ammable

solution.

REGNAD

semalfnepo,seldnac,sehctamesutonoD

.skaelrofkcehcotecruosnoitingirehtoro

VI. Electrical

GNINRAW

lacisyhpsuoiresnitluseryamreliobehtotsnoitcennoclacirtceleeriwylreporpoteruliaF

.mrah

erofebffosirewopl

laerusekaM.ecruosenonahterommorfebyamrewoplacirtcelE

.krowlacirtceleynagnitpmetta

.ecivedtnerruc-revodezisylreporpahtiwdetcetorpebtsumreliobhcaE

.slortnocgnitareporoytefasynaevitareponiekamrotuopmujreveN

reliobhcaE.ylnosesoprupecnereferroferalaunamsihtnideniatnocsmargaidgniriwehT

ehtdnamargaidsihtotrefeR.roodtnorfehtotdehcattamargaidgniriwahtiwdeppihssi

gniriwllawollofdnadnatsrednu,daeR.reliobehthtiwdesuslortnocynafomargaidgniriw

.slortnocehthtiwdeilppussnoitcurtsni

A. General. Install wiring and electrically ground boiler

in accordance with authority having jurisdiction or, in

the absence of such requirements, follow the National

Electrical Code, NFPA 70, and/or CSA C22.1 Electrical

Code.

B. A separate electrical circuit must be run from

the main electrical service with an over-current

device/disconnect in the circuit. A service switch is

recommended and may be required by some local

jurisdictions. Install the service switch in the line

voltage “Hot” leg of the power supply. Locate the

service switch such that the boiler can be shut-off

without exposing personnel to danger in the event of

an emergency. Connect the main power supply and

ground to the three (3) boiler wires (black, white and

green) located in the junction box at the inside top of

the boiler jacket. If a low water cutoff is to be used,

connect the low water cutoff so that all 120V power

to boiler is interrupted if the low water cutoff’s switch

opens.

C. Refer to Figures 28 and 29 for details on the internal

boiler wiring.

ECITON

fogniriwlanretniehtedisnidetacoltimilerutarepmetretawhgihahtiwdeppiuqesireliobsihT

sdeecxeerutarepmetretawreliobehttneveehtninwodtuhsreliobsedivorptimilsihT.reliobeht

erutarepmetretawlanoitiddanaeriuqersedoClacoLniatreC.lortnoctimilehtfotniopteseht

tesmuminimehtwolebserutarepmettaetarepoyamsmetsysfosepytniatrec,noitiddanI.timil

.reliobehtnideniatnoctimilehtfotniop

nidetacol)tatsauqA6004LllewyenoH(timilerutarepmetretawlanoitiddanallatsni,sruccosihtfI

saeriW.launamsihtfonoitceSmirTdnagnipiPretaWehtninwohssag

nipipmetsyseht

.launamsihtfonoitceSlacirtcelEehtnidetacidni

ECITON

.detonesiwrehtosselnudeilppusrellatsniera.cteslortnoc,stuneriw,eriwllA

REGNAD

ecivresronoitallatsnignitpmettaerofebderewopnuerasnoitcennoclacirtcelellaerussaylevitisoP

htiwsexoblacirtcelellatuokcoL.gnidliubroreliobehtfosnoitcennocrostnenopmoclacirtcelefo

.ffodenrutsirewopecnokcoldap

Figure 28: Internal Boiler Wiring Schematic Diagram

Figure 29: Internal Boiler Wiring Ladder Diagram

ECITON

ehtninwohsrepmujtimilyrailixuaehthtiwseiresnillatsni,desusitimilmetsyslanoitiddanafI

.wolebgniward

D. System Controls and Wiring

1. Refer to National Electric Code or Local Electric Codes for proper size and type of wire required. Follow Code.

2. Use anti-short bushings on all wiring passing through boiler jacket, junction boxes and/or control boxes.

3. Use armored cable (BX) over all exposed line voltage wiring.

4. If an Alliance™ indirect water heater is used, use priority zoning except for Hydro-Air Systems.

5. Single Zone Heating System – Refer to Figure 30 of this manual for the electrical diagram for this type of system.

Set the thermostat heat anticipator to 0.60 amps.

6. Single Zone Heating System with Alliance™ Water Heater - Refer to Figure 31 of this manual for the electrical diagram

for this type of system.

Set the thermostat heat anticipator to 0.60 amps.

7. Conventional Circulator Zoned System – Refer to Figure 32 of this manual for the electrical diagram for this type of

system.

Read, understand and follow all of the instructions provided with the Honeywell R8888 control.

Connect the thermostat of each zone and the circulator for that zone to R8888 panel. If an Alliance™ indirect water

heater is used, connect the Alliance™ thermostat and circulator to the Zone 1 terminals of the R8888.

Set the thermostat heat anticipator to 0.12 amps.

ECITON

enoz)4(ruofadna)A8888R(ledoMenoz)3(eerhtanielbaliavasilortnoC8888RllewyenoHehT

evlewtotpuroflortnocedivorpotrehtegotdesuebyams'8888R)4(ruofotpU.)B8888R(ledoM

ytiroirpedivorplliw,lortnocniamehtfoenoztsrifeht,enoz)1(enoylnO.senozlaudividni)21(

,Aehtgniriwybs'8888Rlanoitiddatcennoc,deriuqererasenoz)4(ruofnahteromfI.noitalucric

fI.ylppusrewoptlov021aseriuqer8888RhcaE.rehtegotlortnochcaefoslanimretCdna,B

tesdna8888Rtsrifehtno"niam"othctiwsepytlenapehttes,desusi8888R)1(enonahterom

.8888Rhtruofrodriht,dnocesehtno

"noisnapxe"othctiwsepytlenapeht

8. Conventional Zone Valve Zoned System – Refer to Figure 33. Wiring to the most popular models of zone valves is given

in Figure 34.

Connect the thermostat of each zone and the zone valve for that zone to the R8889 control. If an Alliance™ indirect water

heater is used, connect the Alliance™ thermostat and zone valve to the “zone 1” terminals of the R8889.

Set the thermostat heat anticipator to 0.12 amps.

ECITON

enoz)4(ruofowtdnasledomenoz)3(eerhtowtnielbaliavasilortnoC9888RllewyenoHehT

ledoMdnasmetsysenoz)3(eerh

trofA9888RledoMgnisusdnemmocermahnruB.sledom

yamdnayticapacdaolsselevahD9888RdnaC9888RsledoM.smetsysenoz)4(ruofrofB9888R

otrehtegotdesuebyams'9888R)4(ruofotpU.sevlavenozfosepytniatrechtiwetarepoton

lortnocniamehtfoenoztsrifeht,enoz)1(enoylnO.senozlaudividni)61(neetxisotpuedivorp

erasenoz)4(ruofnahteromfI.retaehretawtceridniecnaillAehtrofgninozytiroirpedivorplliw

.rehtegotlortnochcaefoslanimretCdnaB,Aehtgniriwybs'9888Rlanoitiddatcennoc,deriuqer

lenapehttes,desusi9888R)1(enonahteromfI.ylppusrewoptlov021aseriuqer9888RhcaE

ehtno"noisnapxe"othctiwsepytlenapehttesdna9888Rtsrifehtno"niam"othctiwsepyt

.9888Rhtruofrodriht,dnoces

Figure 30: System Wiring Schematic for Single Zone Space Heating Only

Figure 31: Single Zone System with Packaged Alliance™ Water Heater Wiring Schematic

ECITON

ehtninwohsrepmujtimilyrailixuaehthtiwseiresnillatsni,desusitimilmetsyslanoitiddanafI

.wolebgniward

Figure 32: Circulator Zoned System Wiring Schematic

Figure 33: Zone Valve Zoned System Wiring Schematic

Figure 34: Different Manufacturer’s Zone Valve Connections to Honeywell R8889

A. General Guidelines

1. Read and follow all venting, combustion air,

water piping, gas piping and electrical instructions

contained in this manual unless otherwise instructed

in this section.

2. Consult Local Building Codes or National Fuel Gas

Code, NFPA 54/ANSI Z222.3 for restrictions and

instructions on modular boiler installations.

B. Module Sizing

Burnham recommends sizing each boiler in a modular

system to provide 20 % of the combined heating load

where ever possible.

C. Venting

1. Each boiler must have an individual vent pipe.

Refer to Venting Section of this manual for venting

guidelines and options.

GNINRAW

.rehtegotsepiptnevdlofinamtonoD

2. The maximum vent length for each boiler is ﬁ fty

(50) equivalent feet.

3. The minimum horizontal distance between vent

terminations is one (1) foot. Additional horizontal

distance is desirable to avoid frost damage to the

building. Vent terminations must be at least twelve

(12) inches above the ground plus the expected

snow accumulation.

NOITUAC

esolcsnoitanimrettnevelpitlumgnillatsnI

nopudliubtsorfsetomorprehtegot

,ytilibissopsihteziminimoT.sgnid

liub

ehtotgnidliubehtmorfecnatsidehtdnetxe

ehtesaercnidnanoitanimrettnevehtfodne

.snoitanimretneewtebecnatsidlatnoziroh

4. Multiple vertical vent pipes may be piped through

a common conduit or chase so that one roof

penetration may be made. Each vent termination

must be one (1) foot from other terminations.

D. Air Intake Piping

1. Each boiler must have an individual air intake pipe,

refer to Venting Section of this manual for Air Intake

Guidelines and Options.

2. The maximum air intake length for each boiler is

ﬁ fty (50) equivalent feet.

3. Locate air intake termination on the same wall as

the vent termination if possible, to prevent nuisance

boiler shutdowns. However, boiler may be installed

with vertical venting and sidewall combustion air

inlet (or visa versa) if installation conditions do not

allow alternate arrangement.

VII. Modular Installation

Table 9: Modular Boiler Water Manifold Sizing

E. Water Piping (See Table 9)

Installing a low water cutoff in the system piping of

modular systems is strongly recommended and may be

required by Local Codes.

F. Gas Piping

1. Refer to National Fuel Gas Code, Local Codes and

Tables 7 and 8 for gas pipe sizing.

2. Each boiler must be piped as shown in Figure 27.

GNINRAW

evobasignidliubehtnierusserpsagfI

rotalugererusserpsaglanoitiddana,gisp½

rotalugerlanoitiddaenognisU.deriuqersi

efasnunitluseryamsreliobelpitlumrof

rotalugerlanoitiddaehT.noitareporeliob

sagetalugerylreporpo

telbaebtsum

.reliobtsellamsehtfotupniehttaerusserp

eromroowt,sihtodtonnacrotalugerehtfI

tlusnoC.deriuqererasrotalugerlanoitidda

saglacolro/dnarerutcafunamrotaluger

tnempiuqednasnoitcurtsnirofreilppus

.sgnitar

G. Electrical

1. Each boiler must be provided with a fused

disconnect and service switch.

2. Install wiring in accordance with requirements of

authority having jurisdiction. In the absence of such

requirements, follow the National Electric Code,

NFPA 70 and/or CSA C22.1 Electric Code.

H. Modular Boiler Control Systems

Contact a controls manufacturer such as Honeywell or

Tekmar to properly apply a modular control system.

Common systems may use outdoor temperature, return

water temperature or both to stage the boilers.

tuptuOdenibmoC

)HBM(

muminiMdednemmoceR

dlofinaMretaWnommoC

)TPN(eziS

< 661"¼1

< 062"½1

< 055"2

< 009"½2

< 0002"3

Figure 35: Modular Boiler Gas Piping

A. Safe operation and other performance criteria were

met with gas manifold and control assembly provided

on boiler when boiler underwent tests speciﬁ ed in

American National Standard for Gas-Fired Low-

Pressure Steam and Hot Water Boilers, ANSI Z21.13.

B. Verify that the venting, water piping, gas piping and

electrical system are installed properly. Refer to

installation instructions contained in this manual.

C. Conﬁ rm all electrical, water and gas supplies are

turned off at the source and that vent is clear of

obstructions.

D. Conﬁ rm that all manual shut-off gas valves between

the boiler and gas source are closed.

GNINRAW

llawollofdnadnatsrednu,daeryletelpmoC

erofeblaunamsihtnisnoitcurtsni

.putratsgnitpmetta

E. Fill entire heating system with water and vent air

from system. Use the following procedure on a Series

Loop or multi-zoned system installed as per Figure 25

or 26 to remove air from system when ﬁ lling.

GNINRAW

sihtfoerusserpgnitarepomumixamehT

sihtdeecxereveN.gisp03sireliob

erusserpegnahcrogulptonoD.erusserp

.evl

avfeiler

ECITON

mretgnolamrofrepotderiuqersitifI

eht,metsyscinordyhehtfotseterusserp

adiovaotdetalosiebtsrifdluohsreliob

riafoepacseehtoteudssolerusserp

.reliobehtnideppart

tseterusserpmretgnolamrofrepoT

tsumriadeppartLLA,re

liobehtgnidulcni

.reliobehtmorfdevomerebtsrif

htiw,tsetahcusgniruderusserpfossolA

noitacidninasi,egakaelretawelbisivon

.riadeppartdeniatnocreliobehttaht

1. Close full port ball valve in boiler supply piping.

2. Isolate all zones by closing zone valves or shut-off

valves in supply and return of each zone(s).

3. Attach a hose to the vertical hose bib located prior to

the full port ball valve in the system supply piping.

(Note - Terminate hose in ﬁ ve gallon bucket at a

suitable ﬂ oor drain or outdoor area).

VIII. System Start-up

4. Starting with one circuit at a time, open zone valve

or shut-off valve in system supply and return piping.

5. Open hose bib.

6. Open ﬁ ll valve (Make-up water line should be

located directly after full port ball valve in system

supply piping between air scoop and expansion

tank).

7. Allow water to overﬂ ow from bucket until discharge

from hose is bubble free for 30 seconds.

8. Close the opened zone valve or shut-off valve for

the zone being purged of air, then open the zone

valve or shut-off valve for the next zone to be

purged. Repeat this step until all zones have been

purged. At completion, open all zone valves or

shut-off valves.

9. Close hose bib, continue ﬁ lling the system until the

pressure gauge reads 12 psi. Close ﬁ ll valve.

(Note - If make-up water line is equipped with

pressure reducing valve, system will automatically

ﬁ ll to 12 psi. Follow ﬁ ll valve manufacturer’s

instructions).

10. Open isolation valve in boiler supply piping.

11. Remove hose from hose bib.

F. Conﬁ rm that the boiler and system have no water

leaks.

G. Prepare to check operation.

1. Obtain gas heating value (in Btu per cubic foot)

from gas supplier.

2. Connect manometer to pressure tap on gas valve.

Use 1/8 NPT tapping provided.

3. Temporarily turn off all other gas-ﬁ red appliances.

4. Turn on gas supply to the boiler gas piping.

5. Conﬁ rm that the supply pressure to the gas valve is

14 in. w.c. or less. Refer to Table 5 for minimum

supply pressure.

6. Open the ﬁ eld installed manual gas shut-off valve

located upstream of the gas valve on the boiler.

7. Using soap solution, or similar non-combustible

solution, electronic leak detector or other approved

method. Check that boiler gas piping valves, and

all other components are leak free. Eliminate any

leaks.

REGNAD

semalfnepo,seldnac,sehctamesutonoD

.skaelrofkcehcotecruosnoitingirehtoro

8. Purge gas line of air.

Figure 36: Operating Instructions

Figure 38: 1 Inch Main Burner ﬂ ame

Figure 39: Pilot Burner Flame

Figure 37: Sequence of Operation

H. Follow Operating Instructions to place boiler in

operation. See Figure 36.

I. Sequence of Operation. See Figure 37. If boiler fails

to operate properly, see Troubleshooting Tree in Section

IX: Service.

J. Check pilot burner ﬂ ame. See Figure 39. Flame

should be steady, medium hard blue enveloping 3/8 to

½ inch of sensing probe.

K. Check main burner ﬂ ame. See Figures 38. Flame

should have clearly deﬁ ned inner cone with no yellow

tipping. Orange-yellow streaks should not be confused

with true yellow tipping.

L. Check thermostat operation. Raise and lower

temperature setting to start and stop boiler operation.

M. Check ignition control module shut-off. Disconnect

pilot lead wires from gas valve. If burners do not

shutdown, determine cause of malfunction. Replace

necessary items and check operation.

N. Check low water cutoff (if so equipped).

1. Adjust thermostat to highest setting.

2. With boiler operating, open drain valve and slowly

drain boiler.

3. Main burners and pilot burner will extinguish and

blower will stop when water level drops below low

water cutoff probe. Verify limit, thermostat or other

controls have not shut off boiler.

4. Adjust thermostat to lowest setting. Reﬁ ll boiler.

Table 10: Gas Flow Rate in Cubic Feet

Per Hour

O. Check limit.

1. Adjust thermostat to highest setting.

2. Observe temperature gauge. When temperature is

indicated, adjust limit to setting below observed

temperature. Main burners and pilot burner should

extinguish, and blower should stop.

3. Adjust limit to setting above observed temperature.

Ignition sequence should begin.

4. Adjust thermostat to lowest setting. Adjust limit to

desired setting.

P. Adjust gas input rate to boiler.

1. Adjust thermostat to highest setting.

2. Check manifold gas pressure. See Table 5 or rating

label located in the boiler’s vestibule compartment.

Adjust gas valve pressure regulator as necessary

(turn adjustment screw counterclockwise to

decrease manifold pressure, or clockwise to increase

manifold pressure). If pressure cannot be attained,

check gas valve inlet pressure. If less than minimum

indicated in Table 5 or boiler’s rating label, contact

gas supplier for assistance.

3. Clock gas meter for at least 30 seconds. Use Table

10 to determine gas ﬂ ow rate in Cubic Feet per

Hour.

GNINRAW

lliwetartupnisagtsujdaylreporpoteruliaF

ehtfognirifrednurognirifrevonitluser

reliobefasnudnareporpmI.ecnailppa

.tluseryamnoitarepo

4. Determine Input Rate. Multiply gas ﬂ ow rate by gas

heating value.

5. Compare measured input rate to input rate stated on

rating plate.

a. Boiler must not be over ﬁ red. Reduce input rate

by decreasing manifold pressure. Do not reduce

more than 0.3 inch w.c. If boiler is still overﬁ red,

contact your Burnham distributor or Regional

Ofﬁ ce for replacement Gas Oriﬁ ce.

b. Increase input rate if less than 98% of rating

plate input. Increase manifold gas pressure no

more than 0.3 inch w.c. If measured input rate is

still less than 98% of rated input:

i. Remove Main Burners per procedure in

Section IX: Service.

ii. Remove gas oriﬁ ces. Drill one (1) drill size

larger (drill size is stamped on oriﬁ ce, or see

Section X: Repair Parts).

iii. Reinstall gas oriﬁ ces and main burners.

Measure input rate.

6. Recheck Main Burner Flame.

7. Return other gas-ﬁ red appliances to previous

conditions of use.

Q. Review User’s Information Manual and system

operation with owner or operator.

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flaH-enO

.tF.uC

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owT

.tF.uC

0306021042

2365311522

4335601212

6305001002

837459981

045409081

243468271

441428461

649387751

847357051

056327441

255396831

453376331

652346921

851326421

060306021

IX. Service

A. General. Inspection and service should be conducted

annually. Turn off electrical power and gas supply while

conducting service or maintenance. Follow instructions

TO TURN OFF GAS TO APPLIANCE. See Figure 37.

B. Low water cutoff (if so equipped).

Probe Type (Annual Service). Probe type LWCO

should be removed once a year, examined and

cleaned of any dirt accumulations to assure proper

operations. Do not attempt to repair mechanisms in the

ﬁ eld. Complete replacement mechanisms, including

necessary gaskets and installation instructions, are

available from the manufacturer.

C. Vent/Air Intake System. Inspect for obstructions, soot

accumulation, proper support, and deterioration of pipe,

ﬁ ttings, and joints.

1. Clean terminal screens. Terminals must be free of

obstruction, undamaged, with screens securely in

place.

2. Terminal and wall thimbles (if used) must be

weathertight.

3. Pipe must be full round shape, and show no damage

from impact or excessive temperature.

4. Pipe must be supported at minimum ﬁ ve (5) foot

intervals and must not sag.

5. All vent joints must be secure and watertight.

6. All air intake joints must be secure and airtight.

Horizontal vent tee drain or vertical vent tee drain

(if used) must have minimum 6 inch trap and allow

condensate to ﬂ ow freely. To Clean:

a. Disconnect drain tube from drain ﬁ tting.

b. Flush drain tube with water. Fill trap with water.

c. Securely fasten drain tube to drain ﬁ tting,

providing gas-tight and watertight seal.

7. If pipe must be disassembled for removal of

obstructions or resealing of joint, see Section III,

Paragraph C.

D. Boiler Flue Passages. Inspect for blockage or soot

accumulation.

1. Remove Main Burners. See Figure 42.

a. Remove front door.

b. Remove air intake box front door.

i. Remove sheet metal screws.

c. Disconnect pilot tubing and pilot lead wires at

the gas valve.

REGNAD

retawtohyrevdna,strapgnivom,yticirtceleegatlovhgih,sagelbammalfsesureliobsihT

ehttahtdnaffoeraseilppusrewopcirtcelednasagllatahterussA.erusserphgihrednu

.ecivresroylbmessasidynagnitpmettaerofebloocsierutarepmetretaw

ynagnitpmettaerofebffoerasehctiwstcennocsidlacirtcelednasevlavsagllatahterussA

.ecivresroylbmessasid

.reliobehtfoytinicivehtniriaehtnitneserpsisagfikrowecivresynatpmettatonoD

.ecivedlortnocynaht

iwrepmatroevomer,yfidomreveN

GNINRAW

ecivresdecneirepxednadelliksybderiaperdnadecivresebylnotsumreliobsihT

.snaicinhcet

.sledomlacitnedihtiwdecalperebtsumyeht,decalpereraslortnocynafI

snoitcesehtllanideniatnocsgninrawdnasnoitcurtsniehtllawollofdnadnatsrednu,daeR

.launamsihtfo

erussadnaseriwehtlebalylraelc,ecivresgniruddetcennocsideraseriwlacirtceleynafI

.ylreporpdetcennocereraseriwehttaht

.reliobsihtfotnenopmocrolortnocgnitareporoytefasynassapybrotuopmujreveN

ehtfoLLAnideniatnocsgninrawdnasnoitcurtsniehtllawollofdnadnatsrednu,daeR

.slaunamnoitcurtsnitnenopmoc

erofebylreporpgnitarepoerastnenopmocdnaslortnocgnitarepodnaytefasllatahterussA

.ecivresnikcabreliobehtgnicalp

Figure 40: Silicone Tubing Assembly

Figure 41: Blower Vent Connector Assembly

d. Remove wires to Flame Roll-out Switch.

e. Remove air diffuser screen.

f. Remove Burner Access Panel.

g. Mark location of Main Burner with Pilot Bracket

on gas manifold.

h. Hold Main Burner on throat. Lift front of

burners to clear oriﬁ ce. Burner which holds pilot

can be removed by lifting the burner adjacent to

its right ﬁ rst.

2. Disconnect Vent Connector and Vent Pipe from

Blower Outlet

3. Remove Jacket Top Panel.

4. Disconnect the Black and Gary Silicone Tubing

from the Canopy.

5. Disconnect Wiring Harness from Blower Motor.

6. Remove Canopy/Blower Assembly.

a. Loosen the (4) screws from Canopy.

7. Remove Flue Gas Bafﬂ es. Inspect Flue Gas Bafﬂ es

for deterioration.

8. Inspect ﬂ ue passages. Clean with ﬂ ue brush. See

Figure 42.

9. Inspect heating surface in combustion chamber.

Clean with straight handle wire brush.

10. Install Flue Gas Bafﬂ es.

11. Replace Canopy/Blower Assembly.

12. Connect Silicone Tubing between Pressure Fittings

on Canopy Assembly and Pressure Switch. Route

through bushings in Vestibule Panel . See Figure

40.

13. Install Jacket Top Rear Panel.

14. Connect Vent System. See Figure 41.

15. Connect Blower Motor Wiring Harness.

E. Main Burners and Firebox.

1. Vacuum ﬁ rebox. Exercise care - do not damage base

insulation.

2. Clean main burners. Brush top of burners with soft

bristle brush. See Figure 42. Vacuum to remove any

dirt and lint.

3. Vacuum tip of pilot burner.

4. Check gas oriﬁ ces for lint and dirt. Clean as

necessary.

5. Install main burners by reversing procedure to

remove burners.

a. Pilot burner must be installed in original

location. See Table 11.

b. Main burners must be properly secured in burner

tray slot at rear of ﬁ rebox and over gas oriﬁ ce.

See Figure 42.

c. Pilot gas supply and pilot lead wires must be

reconnected.

d. Burner access panel must be securely in place.

e. Reinstall air diffuser screen.

f. Reconnect Flame Roll-out wires.

g. Air Intake Box Front Door must be installed.

F. Check operation. Follow steps G through P from

Section VIII: System Start-up.

Figure 42: Flue and Burner Cleanout, 1” Burner

Table 11: Pilot Burner Location

G. Procedure for Measuring Differential Pressure (See

Figure 43).

1. With boiler off, remove Gray and Black Hoses at

differential pressure switch.

2. With tees and ¼ inch aluminum stubs, connect water

manometer as shown with additional tubing.

3. Start boiler and read Pressure on Manometer

when boiler water temperature reaches operating

temperature. Refer to Table 12 for minimum

readings.

NOTE: If switch drops-out before boiler reaches

temperature or if pressure differential readings are

below minimums shown in Table 12, check for

cracks in hose or contact your nearest Burnham

representative.

4. Stop boiler, remove manometer and reconnect hoses

to differential pressure switch. See Figures 40 and

43. Figure 43: Differential Pressure Measurement

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XI. Repair Parts

All SCG Repair Parts may be obtained through your local Burnham Wholesale distributor.

Should you require assistance in locating a Burnham distributor in your area, or have questions

regarding the availability of Burnham products or repair parts, please contact Burnham

Customer Service at (717) 481-8400 or Fax (717) 481-8408.

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Warning:

This product contains refractory ceramic ﬁ bers (RCF). RCF has been classiﬁ ed as a

possible human carcinogen. After this product is ﬁ red, RCF may, when exposed to

extremely high temperature (>1800F), change into a known human carcinogen. When

disturbed as a result of servicing or repair, RCF becomes airborne and, if inhaled, may

be hazardous to your health.

AVOID Breathing Fiber Particulates and Dust

Precautionary Measures:

Do not remove or replace previously ﬁ red RCF (combustion chamber insulation, target

walls, canopy gasket, ﬂ ue cover gasket, etc.) or attempt any service or repair work

involving RCF without wearing the following protective gear:

1. A National Institute for Occupational Safety and Health (NIOSH) approved

respirator

2. Long sleeved, loose ﬁ tting clothing

3. Gloves

4. Eye Protection

• Take steps to assure adequate ventilation.

• Wash all exposed body areas gently with soap and water after contact.

• Wash work clothes separately from other laundry and rinse washing machine

after use to avoid contaminating other clothes.

• Discard used RCF components by sealing in an air tight plastic bag.

First Aid Procedures:

• If contact with eyes: Flush with water for at least 15 minutes. Seek

immediate medical attention if irritation persists.

• If contact with skin: Wash affected area gently with soap and water. Seek

immediate medical attention if irritation persists.

• If breathing difﬁ culty develops: Leave the area and move to a location with

clean fresh air. Seek immediate medical attention if breathing difﬁ culties

persist.

• Ingestion: Do not induce vomiting. Drink plenty of water. Seek immediate

medical attention.

SERVICE RECORD

DATE SERVICE PERFORMED

SERVICE RECORD

DATE SERVICE PERFORMED

water boiler for its intended purposes and its maintenance

accordance with U. S. Boiler Co., Inc. recommendations and

hydronics industry standards. These warranties will be inapplicable if

the residential grade water boiler is used or operated over its rated

capacity, is subjected to unauthorized modification, or is damaged as

a result of being otherwise improperly operated or serviced including,

but not limited to, damage from any of the following: operation with

insufficient water, allowing the boiler to freeze, subjecting the boiler

to flood conditions, and operation with unapproved water or fuel

additives which cause deposits or corrosion.

5. Removal and Installation: These warranties do not cover expenses of

removal or reinstallation. The owner is responsible for the cost of

removing and reinstalling any defective part and its replacements

and all labor and material connected therewith.

6. Exclusive Remedy: U.S. Boiler Co., Inc. obligation for any breach of

these warranties is limited to the repair or replacement of its parts in

accordance with the terms and conditions of these warranties.

7. Limitation of Damages: Under no circumstances shall U.S. Boiler

Co., Inc. be liable for incidental, indirect, special or consequential

damages of any kind whatsoever under these warranties, including,

but not limited to, injury or damage to persons or property and

damages for loss of use, inconvenience or loss of time. U.S. Boiler

Co., Inc. liability under these warranties shall under no circumstances

exceed the purchase price paid by the owner for the residential grade

water boiler involved. Some states do not allow the exclusion or

limitation of incidental or consequential damages, so the above

limitation or exclusion may not apply to you.

8. Limitation of Warranties: These warranties set forth the entire

obligation of U.S. Boiler Co., Inc. with respect to any defect in a

residential grade water boiler and U.S. Boiler Co., Inc. shall have no

express obligations, responsibilities or liabilities of any kind

whatsoever other than those set forth herein. These warranties are

given in lieu of all other express warranties.

ALL APPLICABLE IMPLIED WARRANTIES, IF ANY, INCLUDING

ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A

PARTICULAR PURPOSE ARE EXPRESSLY LIMITED IN DURATION

TO A PERIOD OF ONE YEAR EXCEPT THAT IMPLIED

WARRANTIES, IF ANY, APPLICABLE TO THE HEAT EXCHANGER IN

A RESIDENTIAL GRADE WATER BOILER SHALL EXTEND TO THE

ORIGINAL OWNER FOR THE LIFETIME OF THE ORIGINAL OWNER

AT THE ORIGINAL PLACE OF INSTALLATION. SOME STATES DO

NO ALLOW LIMITATION ON HOW LONG AN IMPLIED WARRANTY

LASTS, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU.

PROCEDURE FOR OBTAINING WARRANTY SERVICE

In order to assure prompt warranty service, the owner is requested to

complete and mail the attached Warranty Card within ten days after the

installation of the boiler, although failure to comply with this request will

not void the owner’s rights under these warranties.

Upon discovery of a condition believed to be related to a defect in

material or workmanship covered by these warranties, the owner should

notify the installer, who will in turn notify the distributor. If this action is

not possible or does not produce a prompt response, the owner should

write to U.S. Boiler Co., Inc., Burnham Hydronics, at P.O. Box 3079,

Lancaster, PA 17604, giving full particulars in support of the claim.

The owner is required to make available for inspection by U.S. Boiler

Co., Inc. or its representative the parts claimed to be defective and, if

requested by U.S. Boiler Co., Inc. to ship these parts prepaid to U.S.

Boiler Co., Inc. at the above address for inspection or repair. In

addition, the owner agrees to make all reasonable efforts to settle any

disagreement arising in connection with a claim before resorting to legal

remedies in the courts.

THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS AND

YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE

TO STATE.

Limited Warranty

FOR RESIDENTIAL CAST IRON WATER BOILERS

03/03

Subject to the terms and conditions set forth below, U.S. Boiler™

Co., Inc. Lancaster, Pennsylvania hereby extends the following limited

warranties to the original owner of a residential grade water boiler

manufactured and shipped on or after July 1,1991:

ONE YEAR LIMITED WARRANTY

ON RESIDENTIAL GRADE WATER BOILERS

U.S. Boiler Co., Inc. warrants to the original owner that its residential

grade water boilers comply at the time of manufacture with recognized

hydronic industry standards and requirements then in effect and will be

free of defects in material and workmanship under normal usage for a

period of one year from the date of original installation. If any part of a

water boiler is found to be defective in material or workmanship during

this one year period, U.S. Boiler Co., Inc. will, at its option, repair or

replace the defective part.

LIFETIME LIMITED WARRANTY ON HEAT EXCHANGER

U.S. Boiler Co., Inc. warrants to the original owner that the heat

exchanger of its residential grade water boilers will remain free from

defects in material and workmanship under normal usage for the lifetime

of the original owner at the original place of installation. If a claim is

made under this warranty during the first ten years from the date of

original installation, U.S. Boiler Co., Inc. will, at its option, repair or

replace the heat exchanger. If a claim is made under this warranty after

the expiration of ten years from the date of original installation, U.S.

Boiler Co., Inc. will, at its option and upon payment of the pro-rated

service charge set forth below, repair or replace the heat exchanger.

The service charge applicable to a heat exchanger warranty claim is

based upon the number of years the heat exchanger has been in

service and will be determined as a percentage of the retail price of the

heat exchanger model involved at the time the warranty claim is made

as follows:

NOTE: If the heat exchanger model involved is no longer available due

to product obsolescence or redesign, the value used to establish the

retail price will be the published price as shown in the Burnham

Hydronics Repair Parts Price Sheet where the heat exchanger last

appeared or the current retail price of the then nearest equivalent heat

exchanger.

ADDITIONAL TERMS AND CONDITIONS

1. Applicability: The limited warranties set forth above are extended

only to the original owner at the original place of installation within the

United States and Canada. These warranties are applicable only to

water boilers designated as residential grade by U.S. Boiler Co., Inc.

and installed in a single or two-family residence and do not apply to

steam boilers of any kind or to commercial grade boilers.

2. Components Manufactured by Others: Upon expiration of the one

year limited warranty on residential grade water boilers, all boiler

components manufactured by others but furnished by U.S. Boiler

Co., Inc. (such as oil burner, circulator and controls) will be subject

only to the manufacturer’s warranty, if any.

3. Proper Installation: The warranties extended by U.S. Boiler Co., Inc.

are conditioned upon the installation of the residential grade water

boiler in strict compliance with U.S. Boiler Co., Inc. installation

instructions. U. S. Boiler Co., Inc. specifically disclaims liability of any

kind caused by or relating to improper installation.

4. Proper Use and Maintenance: The warranties extended by U.S.

Boiler Co., Inc. conditioned upon the use of the residential grade

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Burnham SCG 8140705R3 User Manual To The 3448b391 F5b2 4bef 99d9 F52b89ac44dd

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