FLAME SAFEGUARn CONTRULS phần 5 ppsx

TIMER CAMS CAN BE ADDED (FIG. 36)

Extra ~ce on lh9 programmer chassis allowS camsto

be added 10 lh9 timet wifhout redeslgt ThI6 may be nec￾essary If more timer contacts are nq.J1red to mEleI future

COdes.

ALL IlELAVS A,RE VISIBLE.

LA,BELEo. A,NO.ACCESSIBLE

'.0

FIG.36-ADDITIONAL FEATURES OF THE R4140.

TIMER SWITCH (FIG. 37)

A limer switch lets the c:perator stop the Iimer near the

end of prepurge or during the PUo! Flame-Establishing P&-

ried 10 facilitate checkoUl and troubleshooting. The switch

win nol slop the Iimer when the main fuel val~e/S) is

energized.

S9111NG CLI9 HOLDS A,MPLIFIER

'" -~-:. • IlEL",V/TIIOIERCOVER ::_. EASILY SNA,I'S

\ : ONOROFF , TIMEII SWITCl-I TO HOI'

T"'IE~ FOil CHEC~OUT

,.... OR TROUIILESl-IOOTlNG

FIG.37- MORE ADOITfONAL FEATURES OF THE

R4140.

RELAY(TIMER COVER (FIG. 31)

A metal cover helps prOlect the relays and limer cams.

The cover easily snaps on or off. There are no screws 10

remove.

150

SPRING CLIP TO HOLD AMPLIFIER (FIG. 37)

A spring clip on the relaylllme1 cmer securely hold the

plug-In flame slgtal arT\?lIner to ensure good electrical

connEilctlons.

MODERNIZATION WITH THE R4140

The R4140 Flame 5af9QU8.rd Programming Conffols

are Ideal for replacing older pt0g'8JlY'ners thai no longer

meetlhe f8CJ,llremenis 01 ~roval agenCies. They incor·

porate all the lfming changeS rllqJlred !:PI the OCIet:ler 1,

'974, revisions to Underwrltel'$ laboratories Inc. Stan￾dards for 5afety-UL 296 for oN burners and UL 795 for

comrnerclaHnduslrlaJ gas-heating 8(JJipment. Thus, they

are excsllentfor convertlf"Q systems 10 differenl fuels. Th&

R4140lls perfect for L..pQrading a system 10 meet Factory

Mutual and Induslrial Risk Insurers (formerly F.I.A.) re￾qJiretTlQ"lts. (Refer to Table I for other applications In

meeting awroval to::ly requirements.)

With the flexibility provided by the pklQ-ln arT\?lif'iers,

the pfq:l8r programmer and flame delecllon system can

readily be selected to meet the speclfiCaliOl'l$ and local

codes on almost any job. For reliability and long life, all

models 1ealure heavy dUty timers, relays, and contacls as

waJl as solid slale flame signal arT\?flflers.

In adcIlUon, TRADELINE models have been developed

thaI make il easy \0 stalX:lardize. Standardization allows

dealers to reduce their service and spare parts inventory.

Because lhere are 0I11y a few models, it is easier and1aSier

to train installers and seNice techniCians. Some of lhese

TRADEUNE models can easily replace certain competi￾tors' devices by uSing specially deSigned replacemenr

packages.

FLAME DETECTION SYSTEMS (TABLE II)

The flexibility provided by the lnlerchaf'lgeable, plug-in

flame signal amplifiers is llvidenlln Table II. Aslandardor

a self.Checkin'Ol delection syslem is available 10r burne:s

usin'Ol any type of fuel- gas, oil, or coal.

NOTE: Table If Is subject 10 change to Include new devel·

opments or to reflect requirement modificalions. For

lhe lalesl sys:ems available, refer to the table In the in￾struction sheel packed with Ihe programmer.

TRADELINE MODELS (TABLE III AND FIG. 38)

seven TRAOEUNE A4, 40 models can replace sev￾enty A4150 models. A cross reference is Included in each

TRADruNE JnSlfuCJion Sheel. Twvc ad:::1ilional screw fer￾minals on the backs of some of the programmers prOVide a

third choice of the Main Burner Flama--EslablishJng Pe￾riod. (Consult the awropriate Instruction sheet for further

information.)

SUPER TRADELlNE Y4'40 Modernization Packages,

containing one of the 120 voll TRADEUNE R4140 modelS

and a Q52QA1'21 Wiring SLtbase, are also avaifable.

They also contain cocle requirements, installation instruc·

lions, wiring matrices, and preprlnlud wire markers. Com·

plele packages also inClude either a plug-in infraracl

ampl11ier and matching flame detector, or a plug-in reclifl·

caliOf'l amplifier. Par1ial packages. withoUl the deleclor

and/ct amplifier, are also available. (For further informa￾tion, consult the Y4140 mslrt/cliOn sheet, form 6o-D574.'

TABLE II-FLAME DETECTION SYSTEMS

PLUG-IN flAME SIGNAL AMPLIFIERS APPLICABLE flAME DETECTORS

SELF­ FLAME FAILURE TYPE COLOR MODEl FUEL TYPE MODELS

CHECKINI RESPONSE TIME

HOlderf: C7004, r::r00l,

Rectifying C70ll.

R7247A 2 to 4 sec Gas Flame Complete asserrolies: C700 5, Rods C7OOS, C7009, 0179.

No

Rectifying C;7OO3, r::rOl0. Oil - Photocellsd r::r013, C7014.

R7247A'b RectifIcation Green 2to4sec Ultraviolet

Oil,

R7247B Gas,

{Purple C7012A or C.

Coal Peepe~

, Holdersc : C7004, r::roo7, Rectifying C70". " R7247Bb 2to4sec Ga. Flame Complete asserrolies; C700S

Dynamic Rods C7008, C7OO9, 0179.

Self

Check Ga.. Ultraviolet

R7247c! 2t04sec Oil, (Purple C7012E or F.

Coal Peeper)

No R7248A 2104sec

Gas, Infrared

Infrared Red Dynamic Oil, (Lead C701S.

Ampli· A7248Bb 2to4sec Coal Sulfide)

ene" . Purple No

R7249A

2to4sec Gas,

Oil

Ultraviolet

(Minipeeper) C7027, C7035, C7044.

Ultraviolet

Blue

Dynamic

Selt R7476Aa 2t04sec

Gas,

Oir,

Ultraviolel

(Adjustable C7076.

Check Coal sensitivity)

a Circuitry tests all electronic corrp:ll'I8nts in the flame detection system (ampliller and detector) 60 to 120 limes a minute

during burner ClI')eration and shuts down the burner il the detection system fails.

b Circuitry lests the flame siglal amplifier at least 150 times a minute during burner operation and shuts down the burner it

the ~lltier.fcl'lIs.

c Order flame rod separately; see Instruction sheet lor the holder.

d Use Honeywell photocell, Part No. 38316, only.

TABLE 111-TRADEUNE MODELS AVAILABLE

TRADE LINE

MODEL

INSTRUCTION

SHEET

FORM

NO.

NUMBER OF

R4150'S

IT CAN REPLACE

MAIN BURNER

FLAME-ESTABLISHING PERIOD

IN SECONDS

(FielD SelECTABLE)

R4140G1114 a

R4140Gll22 b

R4140G1163

R4140Gl171

R4140Ll147

R4140Mll86

R4140Mll94

6<Hl466

6<Hl466

6<Hl414

6(}{)466

6Q-0468

6<Hl412

6<Hl412

,a

,0

•

7

22

"

,.

10,30 OR SOC

10,30 or SOC

10 or Intermittent

10, 30, or SOC

10, 15, or 30 c

10 Of Intermittent

10 or Inlermlttent

a 240 vall model.

b 208 volt model.

c The longest period is ootained by installing a jumper on Ihe back of the progranmer (Fig. 38).

151 71-97558·1

(;) Q

-c

-c O",,@

'$ $" u@

'0 c" " @

'0 0&" " @

;, . 0" ,@

i

& ...,1lO\i "00£1.5 HAVE NO l[R"'NAI.5 "AND 16

FIG. 38-REAR VIEW OF MODELS WITH 3 CHOICES OF THE MAIN BURNER FLAME·ESTABLISHING PERIOD.

Y593 REPLACEMENT PACKAGES (FIG. 39)

EiQht Y593 Replacement Packages are designed to re￾place 64 different models of a compelilor's flame sale￾guard controls. EaCh package includes a prewired

adapter base to make replacement as easy and conven￾ient as possible. No eXlernal wiring changes are neces￾sary for most fl"ICX:iels. After the removal altha compelilo(s

conlrol, the adapter base is mounted directly on the exist￾ing &.tbase or in the existing Cabinet. The TRADELINE

R4140 included in the replacement package is simply

plugged into the adapter base. (Cons\.l'lt lhe Y593 instruc￾tion sheel, form 60-0407, for further information.)

INSTALLATION OF AN R4140

The bask sleps in the installation of an R4140 are

(1) mounting the wiring Sl.t:lPase. (.2) wiring \0 sutbase,

(3) installing the flame detector, (4) performing a static

checkout, and (5) mounling the programmer. These steps

will be desCribed in general in this sectiOl1. During an ac·

lual installation, follow the applIcable instructions pte>

vided by the burner manufacturer in addition 10 those in

the instruction sheet 'or Ihe particular model being

Installed.

MOUNTING THE WIRING SUBBASE

First, ChOOSe a location where the temperature will stay

wilhin specification limits for the R4140, and where the

re/antle humidity never reaches the saturalion lX>inL C0n￾densation 01 moisture on the R4140 could cause enough

leakage to short the flame signal to ground and thus pre-­

venl the burner from starting. Locate the sutbase close to

the name detector(sj in order 10 keep Ihe flame signal lead￾wires as short as possible. 00 not Inslall it where II could

~(T"'NING SCR(W

KNIF(-BlADE

CONTACTS (NGAGE

FLAM( SAFEGUARD

QS~OC PF!(W'F!(O ADAPT(F! BASE

,",OUNTING SCR(WS 121

CONTROl

.."

FIG.39- TYPICAL INSTALLATION OF A Y593

REPLACEMENT PACKAGE IN AN

EXISTING CABINET.

be subject [0 extreme vibration. Vibration shortens the 1I1e

01 the eJaclronic comp::lnents. Finally, the R4140 is not

weathartighl, so prolection wilt be required If it is installed

O!.JtdOOrs.

152