Ariston 350, User Manual

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3 . S T AR T I NG A ND OP ERA T I ON
3.1. Commissioning
3.1.1.
B e fo re co nne ct th e a ppl ian c e to pow er s o ur c e, fi ll th e t an k u p w i th mains w a t er. To do th is, t urn o n hot w a t er mi x er t a p
an d th en t a p of cold w a t er su ppl ie d to th e w a t er h ea t er.
3.1.2. O n c e th e w a t er h ea t er is f u ll , th e w a t er w i ll fl ow f r o m th e mi x er t a p . C h e ck th e fl an g e fo r l ea k a g es. Cen t er i t an d t i ght en
th e nu t s i f ne c essar y .
3.1.3. T urn th e hot w a t er t a p o n th e mi x er off .
3.1.4. C o nne ct th e a ppl ian c e to pow er s o ur c e.
3.2. Temperature control
3.2.1.
In m od e l s e q ui pp e d w i th e xt erna l co n t r ol , w a t er t em p era t ure c an b e co n t r oll e d by a h an dl e co nne ct e d to th e
th erm o s t a t in a cco r d an c e w i th mar k s.
3.2.2. I f an a ppl ian c e m od e l do es n ot h a v e an e xt erna l co n t r ol , t em p era t ure c an b e se t by t urnin g th e a dj us t in g s c re w of th e
th erm o s t a t in th e ran g e mar k e d by”+” an d ” - ” si g ns.
3.2.3. To do s o , d is co nne ct th e w a t er h ea t er f r o m th e pow er su pply an d rem ov e th e pl as t i c cov er of th e a ppl ian c e.
3.2.4. I t is re co mmen d e d to ins t a ll th e co n t r oll er in a po si t i o n co rres po n d in g a pp r ox ima t e ly to 75% of th e ma x ima l v a l ue. In
th is c ase, th e a ppl ian c e is op era t e d in e co n o m y m od e si g ni fi c an tly re d u c in g th e ra t e of s c a l e fo rma t i o n.
4 . M AI NT E N A N CE A ND RE P AIR W O R K S
Attention! Do not try to repair the appliance by yourself. All maintenance and repair works should be carried
out by a qualifi ed technician in conformity with the safety norms and with any provisions set forth in this
manual.
4.1. Water Drain
I f th ere is a po ssi b i l i ty th a t th e am b ien t t em p era t ure d r op s b e low 0 ° C in th e r oo m wh ere th e a ppl ian c e is ins t a ll e d , d rain
w a t er f r o m th e w a t er h ea t er.
4.1.1. D is co nne ct th e a ppl ian c e f r o m th e e l e ct ri c a l su pply;
4.1.2. M a k e sure th a t th e w a t er in th e a ppl ian c e is of sa f e t em p era t ure ;
4.1.3. T urn off th e t a p of cold w a t er su pply to th e w a t er h ea t er ;
4.1.4. T urn o n th e hot w a t er t a p o n mi x er fo r p ressure re l ie f insi d e th e t an k;
4.1.5. T urn o n th e T - co nne cto r s top v a lv e ins t a ll e d a t hot w a t er o u tl e t (mar k e d w i th re d rin g ) fo r air a cc ess in to th e t an k . I f i t is
a b sen t , rem ov e th e co nne ct i o ns a t th e w a t er h ea t er o u tl e t;
4.1.6. C o nne ct d rain ho se d ire ct e d in to th e se w er to th e T - co nne cto r s top v a lv e ins t a ll e d a t th e cold w a t er in l e t of th e w a t er
h ea t er (mar k e d w i th th e bl ue rin g ) an d op en i t . I f th ere is n o T - co nne cto r, co nne ct th e ho se to w a t er h ea t er in l e t;
4.1.7. A ft er d rainin g , ma k e sure th ere is n o w a t er insi d e th e w a t er h ea t er.
Freezing of water inside the water heater leads to irreversible changes and defects.
It invalidates all warranty liability on the part of the manufacturer.
4.2. Replacing internal parts
D is co nne ct th e w a t er h ea t er f r o m th e e l e ct ri c i ty su pply . Rem ov e th e a ppl ian c e cov er. To re pl a c e th e th erm o s t a t p u ll i t s t rai ght
o u t ot th e cl us t er an d d is co nne ct f r o m pow er su pply .
P ri o r to wo r k , th e w a t er h ea t er mus t fi rs t b e em pt ie d . F o r m od e l s w i th an au tocl a v e fl an g e, rem ov e th e nu t ( D in Fi g . 3 ), rem ov e
th e fl an g e hold er ( S in Fi g . 3 ) an d op en th e fl an g e ( F in Fi g . 3 ) by p ressin g i t insi d e. Rem ov e th e fl an g e by t urnin g i t o n i t s a x is.
F o r m od e l s w i th a fl an g e o n th e 5 bolt s, rem ov e 5 nu t s ( C in Fi g . 4 ) an d rem ov e th e fl an g e ( F in Fi g . 4 ). Th e h ea t in g e l emen t
an d an od e r od are a tt a ch e d to th e fl an g e. D urin g reassem bly , ma k e sure th a t th e h ea t in g e l emen t , fl an g e g as k e t an d th e
th erm o s t a t are p u t b a ck in th eir o ri g ina l po si t i o ns. We re co mmen d re pl a c in g th e fl an g e g as k e t e v er y t ime wh en reassem bl in g .
Prior to any repair or maintenance procedure, disconnect the unit from power source.
Use original spare parts of the manufacturer only.
4.3. Periodical maintenance
4.3.1. Magnesium anode
Th e ma g nesium an od e r od is an in t e g ra l p ar t of th e p r ot e ct i o n s y s t em of w a t er t an k a g ains t co rr o si o n.
I t’ s ne c essar y to ch e ck th e co n d i t i o n of th e ma g nesium an od e r od A NNU ALL Y .
In c ase of se v ere w ear, th e ma g nesium an od e r od mus t b e re pl a c e d .
Th e w arran ty fo r w a t er t an k w i th th e wo rn ma g nesium an od e r od (resi d ua l vol ume is l ess th an 3 0 % ) is n ot
v a l i d .
Th e ma g nesium an od e r od s ho u ld b e re pl a c e d a t l eas t o n c e in 2 4 m o n th s (e xc e pt fo r th e w a t er h ea t er w i th th e
in t erna l t an k ma d e of s t ain l ess s t ee l ).
The magnesium anode rod is a consumable item that cannot be replaced under warranty.
4.3.2. Safety valve
Th e sa f e ty v a lv e ( p ressure sa f e ty d e v i c e) mus t b e ins p e ct e d re g u l ar ly to ch e ck th a t i t is n ot block e d o r
d ama g e d . Re pl a c e th e v a lv e o r rem ov e l imes c a l e d e po si t s i f ne c essar y . I f th e sa f e ty v a lv e is e q ui pp e d
w i th a l e v er, re g u l ar v a lv e co rre ct op era t i o n ch e ck p r oc e d ure c an b e p er fo rme d w i th i t s h e lp .
Th e d raina g e p i p e of th e sa f e ty v a lv e ma y g enera t e w a t er d r opl e t s. I t is n ot a d e f e ct; i t is d ue to re l ie f
wo r k f un ct i o n of th e v a lv e - p ressure re l ie f th a t occ urs wh en w a t er is h ea t e d in en clo se d s p a c e of th e
inner t an k .
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