Vortex 12/16, Installation & Servicing Instructions Manual, Page: 42 / 48

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Fig ure 4: VO RT EX Ec oW all Hu ng bo ile r( sh ow in gw ate rf ill po in tv alv ew ith ca p)
T o re -p re ss uri se th es ys te mb ya dd in g
wa te r:
1. On ly ad dw ate rt ot he sy ste mw he n
it is co ld an dt he bo ile ri so ff. Do no t
ov erf ill.
2. Ch ec kt ha tt he fill po in tv alv ei s
clo se da ss ho wn by th el arg ea rro w
in Fig ure 4.
3. Re mo ve th ec ap sh ow nw ith a
su ita ble sp an ne r .
4. En su re th at th ef le xib le fill in glo op
su pp lie dw ith th eb oile r( se eF ig ure 4)
is co nn ec te da nd th at th ed ou ble
ch ec ks hu to ff va lve co nn ec tin git to
th ew ate rs up ply is clo se d. (A va lve is
op en wh en th eo pe ra tin gle ve ris in
lin ew ith th ev alv e, an dc lo se dw he n
it is at rig ht an gle st oit ).
5. Op en th ef ill po in tv alv es ho wn in
Fig ure 4.
6. Gra du ally op en th ed ou ble ch ec k
va lv ef ro mt he wa te rs up ply un til
wa te ri sh ea rd to flo w.
7. Wh en th ew hit en ee dle of th e
pre ss ure ga ug ei sb etw ee n0 .5 an d
1b ar, clo se th ev alv e.
8. Ve nt ea ch ra dia to ri nt urn ,s ta rti ng
wit ht he lo we st on ei nt he sy ste m,
to re mo ve air.
9. Co nti nu et of ill th es ys te mu nti lt he
pre ss ure ga ug ei nd ic ate sb etw ee n
0.5 an d1 .0 ba r . Clo se th ef ill po in t
va lv e.
10 .R ep ea ts te ps 6a nd 7a sr eq uir ed .
11 .C lo se th ef ill po in ta nd do ub le ch ec k
va lv es eit he rs id eo ft he fill in gl oo p
an dd is co nn ec tt he lo op .
12 .R efit th ec ap to th ef ill po in tv alv e
sh ow nb yt he la rg ea rro win Fig ure 4.
Co mp lie sw ith EC Lo wv olt ag e
Ele ctr om ag ne tic co mp ati bili ty an d
Bo ile re ffic ie nc yD ire cti ve s.
89 /3 36 /E EC
73 /2 3/E EC
92 /4 2/E EC