6.3. TESTING THE FLAME-FAILURE
DEVICE (Fig. C)
The devi_e i.sfail safe: any mallLrnc[on, such as poor
electriccontacl, sic., willcagse itto close..Even so,
ikmust be checked for pfop_ epe_aliorJwhen llhe
refdgerateris firsl inslalleda_d the_ periodically"laler
on (see ur=der_Periedic _,_intenance")_ The foffo,/Ang
iStO be done:
a) Place the r_dgerabOrinoperation wigh1helhe{moslat
eeltoIha coldeslposition.
b) Close and 4henim.,'nedialelyopen [he sel_c_r valve
{03).
The Ilamewill go oul bul lhe gas supcly will continue
_oIlow.
o) Lisler=carelu{ly.In about 30 lo 40 secondsyou.will
heat a slightbuI very dislin_t "'dick" Io s'igeiiy Ihal
lhe valv_ has dosed.
6,4, THE THERMOSTATICVALVE
ANDTHE BYPASS(Fig. G]
The 9empera_re issensed via a copper capillaryIube
|G1) risingbehind the ref_jeralo[ (D3) and wJlhI_
1"_)reachJngit,to a receplaele on _e evape_alor _E1).
The temperatere of Ihe tip and lhe posi!ion el ihe shaft
(G4) cause the passage ot gas Iothe bums( to open
{o a g[eats[ or lesser exlent Wlher=reinslallirv:j Ihe
¢spilrary lube aflet a repair, make sure that ilfide
p{epady ir=lothe rece_,lacle and caulk the ou,11ellO2}
wilh sealingcompound.
Eve_ when 1bethermostatic valve Lsclosed, a s_!lall
amousl of gas still passes through to ke_. lhe tiaras
aligh!and the freezm coreparlment operating. Thisgas
is metered by'an orilicointhe bypass screw (G6).
The _ii_ice is nonadjustable and the screw must be
i_eo!light. The two.digi!marldng on the sorewindicates
Ihe c_pseily.
6.5.PRESSURE OUTLET
The plug,{GS)car=be remindedar_ {eplac_ by a
pressure Dullerco=Jpled1oa pressuregauge.
W_h the retrigsraloroperating and 1he thermostat
adjustedto Ih_ coldest sailing, the pressure should
be Ihe same as lhe supply pressure, or 11inches 1280
mm) wat_ column.
]110ws.r.f_em1.1_2to 3 inches {40 to65 mm), the
sensing _emen! [sfaulty and theeombiealion oOntrol
va_e must be replaced.
Tufaing the lhermostal l_nobIo the warmest eeilirv_.
yOUshouldsee thepress.uredropto Ihe ra_ngebelween
1.lt2 arid3 incheswaler COlumnIprovided the t_pel
_e capillaryLs.3_F tO_) orcokter!.
_1it drops bsC0w 1.1_2irv_es, thebypassorilice is
ctogge_
6.6. THE BURNER (Fig, H}
The gas passes lhreugh art edge drilled t!)'a high
prec_sic_laser"beam ina lir=yplate el r_by {He) lodged
at the lip _)_the erifrce spud (Hg). The sizeo'i theerifioe
is indicaled by lhe digits.
(HT).
The o_itloespud_ inloa housing[H4)wit_pods
Io_theprimaryair.Dualorllnlpresen_intheairis
su_k_dInthr_gh lheparisand _ollec_behindlhB
gauze (H2), slowlychsnglng thecharacter of Ih_e_me
irom blue, ha_d _ low to yel!c_, sofl_nd e_ongatedo
A gr_,viag yellow core is ihefirstwareing and befo*=e
yellowlipsappear or Iha flame max_hes1heb,a!ffe,the
purest musl be cleaned. See item Periodic
Mainlertsece.
NOTE: The 10w flameeorma_ ,hasa _ltow core. No
ye_0wtips faust appear however.
6.7. THE IGNITER
The ignite_ (C5} is the p_ezoelsclrictype which cau._es
aIligh-voltage spark Io jump belween ills eteclrode
(H3}and lbe bumez (H2}. _1il fairs _oepeta_, lihefault
may lay v_hin the gamul of wsllknown_ulomo_
spark pug problems, LB.from 1_ great a distance
bel_een eledrode and burr_r_Io freepage et pOOr
_reelrie conracl, ff such problems c_nbe ruled out,
Ihe ignitersi_out_be exchanged.
6,8. Tt'l_ FLUE TUBE (Fig. I)
The burner is tocated benealh the flue lube (14),There
is a befits 115)_eIhe lube _oimpte,ve heal t(ansl_er
el the cembuslion gases, arm"also a d_ocke(_3)
It]nil lhe excess sir passiog lbrough the _ue lul0e. The
assembly (12)is supporled at Ihe upper edge of the
_lLrelube. Filting over it ts the flue extension(It),
laslened to Ihe co_ing urn.
7. Periodic maintenance and
trouble-shooting
To mainlain your ref(igerato_safe snd elficienl we
recommend you.to cam/c_t _.simpleprogramol
prevenlive maintenance, This rou_ir_shouldbe applied
al least Iv_cea _es_.p(eferablybefore a season of
c_ntinueduse and speciallyff_e re,dOers!orhas been
_sed _ewn tot some time.
During aridafter1he faainle_ance servicekeep
al0pliancemea Bleatand free Ir0,rncombuslible
matadai's, gasolieeand olher flammable vapors and
liquids. Nso keep theIlowof combuLsl[onand vent_lalion
_" unob_ucle,d.
7.1. CHECKING THE BOORS
Firs! che_ 1hedoors lot unob_ucled opsr=in,ga_d
closing,thee check the mBgr_ti¢ seats. These sl_ould
be clean,f,_eeItemclacks c_ distortion,a_d sealing
O5
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