Sime MINI 12 OF Erp User manual

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DOMESTIC!INSTANTANEOUS!GAS!WATER!HEATER!
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USER’S!MANUAL!
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! ! ! ! ! ! ! ! MINI!12!OF!ErP!
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Read!the!technical!instruction!before!installing!the!appliance.!
Read!the!user’s!instruction!before!lighting!the!appliance.!
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Cod.!6328400!–!12/2016!
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This!gas!water!heater!is!ISO9001!certified.!
Thank you for purchasing our large capacity automatic gas water heater. Read this manual
before installing and operating and keep for future reference.
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Contents
Special Advice ………………………………………….………………...…………….2
Features & Benefits …………………………………….……………………………….2
Specifications…………………………………………………………………………….3
Parts Name………………………………………………...……………………………..4
Installation Method……………………………………………………………...……….6
Operation Method………………………………………………………………………..9
Cautions For Safety…………………………………………..…………………………10
Maintenance…………………………………………….………………………………13
Accessories Table……………………………………...………………………………..13
Trouble Shooting………………………………………………..………………………13
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2
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Special!Advice!
Since!the!combustion!of!the!gas!will!consume!a!large!amount!of!air!and!produce!Carbon!
Monoxide!while!the!heater!is!working.!However,!if!human!inbreathe!too!much!Carbon!Monoxide,!
it!will!cause!danger!or!even!death!.Therefore,!the!users!are!requested!to!install!and!use!this!
heater!strictly!according!to!this!manual!to!avoid!Carbon!Monoxide!toxicosis.!The!manufacturer!or!
any!danger!resulted!from!installation!and!operations!not!bear!responsibility!for!any!danger!
resulted!from!installation!and!operations!not!in!accordance!to!this!manual.!
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Features!&!Benefits!
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1.! ! Automatic!operation!
Simply!turn!on!the!hot!water!tap!or!shower,!and!hot!water!will!arrive.!When!the!tap!is!
turned!off,!the!flame!will!automatically!go!out.!
Independent! control! of! water! flow! and! gas! flow! makes! it! easy! to! adjust! the! water!
temperature.!
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2.! ! Innovative!design!
Sleek!shape!and!convenient!to!install.!
Advanced!energy‐saving!combustion!technology!greatly!promotes!burning!efficiency.!
Ignites!at!low!water!pressure!(0.3bar),fulfill!the!needs!of!users!living!in!high!buildings!
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3.! ! Complete!safety!functions!
Sensitive!IC!flame!sensor!will!cut!off!the!gas!supply!if!the!flame!goes!out!unexpectedly.!
Insufficient!water!flow!pressure!protection.!
Anti‐frost!function!
In!case!of!no‐water!supply,!the!gas!valve!will!automatically!turn!off.!

3"
"
Specifications,
Name
Gas‐fired"instantaneous"Water"Heater"
Model
MINI"12"OF"ErP"
Heat"Input(Hi)""Q
24"kW"
Heat"Output""""P
20.4kW"
Max"Flow"Rate(rise"
25℃)
12kg/min"
Appliance"Type
B11BS"
Type"of"Gas
2H‐G20‐20mbar/3B‐G30‐30mbar/3P‐G31‐37mbar
Gas"category"
II2H3P/II2H3B/P"
Max"water"pressure"
Pw=10bar"
Min"water"pressure"
Pw=0.3bar"
Power"supply"
3v"
Degree"of"electrical"
protection"
IPX0"
Ignition"method"
Water"Controlled"Automatic"Ignition"
Gas"Inlet"
G"1"/"2"or"G"3"/"4"
Cold"Water"
Inlet"
G"1"/"2"
Pipe"
joint"
Hot"Water"
Outlet"
G"1"/"2"
Flue"Duct"
Diameter（inner"
diameter"
Ø130mm"
Warning:"
Read"the"technical"instructions"before"installing"the"appliance."
Read"the"use’s"instructions"before"lighting"the"appliance."
This"appliance"shall"only"be"installed"outside"or"in"a"room"separated"from"inhabited"rooms,"
incorporating"appropriate"ventilation."
This"appliance"may"only"be"installed"in"a"room"if"the"room"meets"the"appropriate"ventilation"
requirements."
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Parts!Name!
Fig.!1!
MINI 12 OF ErP
A
350
B
636
C
Ø130
D
223
E
238
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Installation!
●Before!installation!,contact!the!qualified! !
technicians!in!local!gas!dealer!or!gas! !
management!department!to!do!the!installation!.!
Any!random!or!improper!installation!will! !
affect!the!safety!use!of!the!machine!or!even! !
damage!users!life.!
●If!the!flue!type!gas!water!heater!install!a!flue!,! !
it!is!strictly!prohibited!to!open!the!mechanical! !
ventilation!equipment!like!the!cooker!hood! !
and!ventilation!fan!in!rooms!that!are!installed! !
or!connected!through!when!it!is!in!operation.!
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Installation!requirements!
●Do!not!install!the!water!heater!in!bedroom!,!
basement!,bathroom!,or!rooms!under!bad!ventilation! !
condition!.The!room!for!installation!shall!be!well! !
ventilated!and!above!6m²in area .A ventilation
hole as well as an exhaust hole must be drilled
in the wall ,for venting hole shall be at the level
lower than the water heater.(Fig.3)!
●The!flame‐check!window!of!the!water!heater! !
shall!be!at!the!level!of!eyes!(about!1.55m‐1.65m! !
above!the!floor.!Fig.4),!kept!away!from!the! !
inflammables(Fig.5).Nothing!could!be!installed! !
or!put!within!500mm!under!the!gas!water!heater! !
at!vertical!level!.No!lines!,!electric!equipment! !
shall!be!put!overhead!of!the!water!heater.!The!heater!shall!be!kept!at!least!400mm!far!from!
electronics!at!horizontal!level.!
●Do!not!install!the!water!heater!where!strong!wind!blows,!or!it!can!cause!flameout!or!
incomplete!combustion.!

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Installation!Method! !
1. Installation! !
Drill!holes!in!the!wall!according!to!Fig.6,!put!an!expansion!bolt!into!the!upper!hole!and!plastic!
gasket!into!the!lower!hole,!mount!the!water!heater!vertically!on!the!upper!bolt!without!
inclination!and!tighten!the!lower!holes!with!expansion!bolts.!
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Fig.!6!(Unit:mm)!
2.! ! Piping!
●! L.P.G!users!are!recommended!to!use!2m³/h!pressure!–reducer.!
●! Gas!inlet!Faucets!
⑴! For!L.P.G!users,!connect!the!gas!inlet!faucet!and!the!gas!pressure‐reducer!of!the!gas!cylinder!
with!special! Ф9.5mm!rubber!tube,!fasten!the!joints!with!clips.!
⑵! For!Natural!Gas!users,!contact!the!gas!dealer!to!connect!with!fit!pipe.!
⑶! After!connecting!the!pipes,!check!the!connections!with!soapsuds!for!gas!leak.!
●Water!Inlet!Faucet!
Remove!the!drain!valve!firstly!to!avoid!breaking!the!anti‐frost!pipe.!It’s!use!the!tube!provided,!
or!you!may!use!rigid!pipe!as!cold‐water!connection.!A!water!controller!shall!be!installed!
before!the!water!inlet!faucet!(Fig.7).!(Note:!There!is!a!filter!inside!the!water!inlet!faucet,!do!
not!remove!it!while!installing).! !
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A!
B!
MINI
12 OF ErP!
530.5!
283.5!

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●Hot!Water!Outlet!
If!connect!the!hot!water!outlet!directly!to!the!shower,!you!can!use!tube!or!rigid!pipe.!When!
install!control!valve!or!tap!to!the!hot!water!outlet,!or!install!the!shower!with!control!tap,!do!
not!use!pipes!made!of!materials!pressure‐unendurable!or!temperature‐unendurable,!such!as!
plastic!pipes,!aluminum!pipes.!
3.! ! Battery!Installation!
! ! ! Do!not!confuse!the!positive!and!negative!ends!of!the!batteries!(See!Fig.8).!
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4.! ! Flue!Duct!Installation!
As!This!type!B11BS!appliances!shall!only!be!installed!in!the!open!air!or!in!a!room!which!is!
separated!from!inhabited!rooms!and!supplied!with!appropriate!ventilation!directly!to!the!
outside.(!The!waste!air!exhaust!pipe!must!be!installed.)!
●! The!main!body!of!the!flue!duct!shall!be!n=made!or!rustproof!material.!
●! The!horizontal!part!of!the!flue!duct!shall!has!an!1:100!down!inclination,!and!there!shall!be!a!
ф10mm!hole!at!the!bottom!of!the!vertical!part!of!the!duct!outside!the!room,!for!the!purpose!
of!draining!water!drops!
●! The!outlet!of!the!flue!duct!shall!have!a!windproof!cap,! !
which!should!not!be!clogged.!
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!!!Installation!method:!
●! Drill!proper!holes!on!the!wall!according!to!the!right! !
dimensions!of!the!heater!(See!Fig.9).!
●! Stuff!the!holes!with!non‐flammables.!
●! For!duct!block!function,!it!is!required!to!install!the!exhaust! !
duct!according!to!Fig9,!strictly.!It’s!very!important! !
for!dimension!1800mm≤a!+!b≤2200mm.The!tightness! !
between!the!exhaust!duct!and!the!duct!holder! !
must!be!right!.After!installation!of!duct,!to!ensure! !
the!water!heater!can!operate!normally.! !
(!For!model!with!flue!blockage!protection!).!
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Operation!Method!
1. preparation!Before!Ignition!
●! Make!sure!the!type!of!gas!used!complies!with!that!stipulated!in!the!label.!
●! Open!the!ventilation!holes.!
●! Turn!on!the!gas!inlet!valve.!
2.! ! How!To!Ignite!
●! Turn!on!the!water!valve!(make!sure!there!is!water!flowing!out!of!the!shower),!the!water!
heater!with!“clicking”!ignition!sound.!The!burner!is!ignited!and!hot!water!flows!out!instantly.!
If!the!water!pressure!is!low,!or!the!power!is!not!connected,!the!water!heater!will!not!operate!
normally.!
●! After!initial!installation!or!a!change!of!gas!cylinder!air!may!remain!in!the!gas!pipe!and!it!
requires!several!ignition!attempts!to!push!the!air!out!of!the!pipe!before!the!gas!can!be!ignited.!
If!a!problem!comes!up!after!normal!operation,!turn!off!the!water!immediately.!Try!to!
re‐ignite!10‐20!seconds!later!to!avoid!“pop”!burning.!
●! Water!Temperature!Control! !
⑴! Turn!the!water!flow!control!knob!(rod)!on!the!cover!of!(under)!the!machine!to!control!the!
water!flow!and!its!temperature.!Turn!the!gas!regulator!knob!(rod)!on!the!cover!(bottom)to!
control!the!flame!of!the!burner!thus!controlling!the!hot!water!temperature.!
(2)!turn!the!water!inlet!tap!to!control!water!temperature:!decreasing!the!water!flow!to!make!the!
water!temperature!high!(do!it!slowly,!if!the!flame!extinguishes!then!re‐ignite!by!increasing!the!
water!flow),!and!increasing!the!water!flow!to!make!the!water!temperature!low.!
●! Test!water!temperature!with!your!hand!before!using!to!avoid!scalding.(Fig.10)!
●! Turn!off!the!gas!valve!after!each!shower.(Fig.11)!
●! When!the!outdoor!temperature!is!below!0℃,!the!water!heater!must!be!drained!after!each!
shower!as!follows:!
⑴! ! Turn!off!the!water!control!valve.!
⑵! ! Turn!the!water!flow!control!knob!to!“low”!position.!
⑶! ! Remove!the!drain!cock.!(The!drain!cock!is!a!bolt!connected!to!the!valve.!Take!it!off!by!
counter‐clockwise!to!drain!the!water!out!completely).Fix!the!drain!cock!back!into!the!
original!place!for!another!shower.!

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Cautions!For!Safety!
■! ! Gas!Leakage!Prevention!
●! ! It’s!better!to!install!a!gas!leakage‐warning!device.!
●! ! Check!whether!the!flame!is!extinguished!after!each!shower!and!do!not!forget!to!turn!off!the!
gas!valve(Fig.11)!
●! ! Always!check!all!the!gas!pipe!connections!with!soapsuds!to!see!whether!it!has!gas!leakage.!In!
case!of!gas!leakage,!shut!off!the!gas!supply!and!open!the!windows!immediately.!Under!such!
condition,!ignition,!switching!on/off!the!electric!power!supply!are!strictly!prohibited!to!avoid!
explosion!and!firing.(Fig.12)!

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●! ! Keep!on!using!one!type!of!gas!(L.P.G!or!NG),!never!mixing!using!them.!
●! ! Check!the!gas!tube!regularly!as!it!may!age!and!crack!after!long!period!of!usage.!Replace!it!if!
cracked!tubes!are!found.!Under!normal!operation,!the!gas!tube!should!be!replaced!yearly.!
●! ! For!L.P.G!user,!if!the!flame!of!the!heater!is!not!stable,!it!may!be!caused!by!the!breakdown!of!
the!pressure!reduction!valve!connected!to!the!outlet!of!the!gas!tank.!In!that!case,!stop!using!
the!heater!immediately!and!contact!a!service!technician!
●!!For!NG!users,!if!the!flame!of!the!heater!is!not!stable,!it!may!be!caused!by!the!instability!of!
the!gas!pressure.!In!that!case,!stop!using!the!heater,!otherwise!it!may!be!damaged!or!even!
cause!accident.! !
■! ! Fire!Accident!Prevention!
●! ! Make!sure!that!the!flame!of!the!heater!has!extinguished!before!leaving!the!room!or!go!to!
sleep.!
●Turn!off!the!main!gas!valve!and!the!water!inlet!valve!in!case!of!water!shortage.!
●Do! not! place! inflammables! like! towel! or! cloth! onto! the! water! air! drain! outlet! or! the! air!
inlet.(Fig.13)!
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●Do!not!pile!inflammables,!explosives!or!volatile!materials!near!the!heater.!(Fig.14)!
●For! L.P.G! users,! do! not! place! the! tank! titled! or! inverted,! otherwise! the! liquid! in! the! gas!
cylinder!may!flow!into!the!heater,!and!cause!fired!accident.!
Carbon!Monoxide!Intoxication!Prevention!
The!burning!of!gas!consumes!large!amount!of!air!and!produces!some!amount!of!poisonous!
gas! like! carbon! monoxide.! Thus,! the! heater! must! be! fixed! in! a! ventilated! location.! Keep!
exhaust!fan!running!and!the!ventilation!hole!opened.!
As! this! water! heater! is! large! volume! flue! type,! so! flue! duct! must! be! installed! to! drain! the!
combustion!product!out!of!the!room,!keeping!the!air!inside!the!room!clean.!
NG! users! must! pay! attention! to! the! flame! back! phenomenon! when! the! gas! pressure! is!
insufficient.!This!causes!the!carbon!deposit!in!the!burner!to!increase!and!affect!the!normal!
use! of!the!heater.!In!such! case,! should! the! flame! turn! from! blue! to! yellow,! the! amount! of!
carbon!monoxide!would!increase.!Stop!using!the!heater!and!contact!the!gas!company!or!the!
service!center.!
The!heater!must!be!installed!vertically.!
Prevent!Eyes!From!Getting!Hurt!
Keep!eyes!away!from!the!flame!indicator!window!at!a!minimum!safety!distance!of!300mm!
during!ignition.!If!the!first!attempt!of!ignition!fails,!wait!10‐20!seconds!before!the!next!
attempt.!
Prevent!No‐water!Burning!In!The!Heater!
After!each!shower,!make!sure!that!the!flame!is!extinguished!when!the!valve!is!closed.!If!the!
flame!still!exists!after!the!water!valve!is!closed,!something!must!be!wrong!with!the!heater.!
Switch!off!the!gas!valve!immediately!and!contact!the!service!center.!Otherwise!the!heater!
may!be!damaged!by!overheating!and!then!may!cause!fire!accident.!
Freezing!Prevention!
Under!low!temperature,!drain!the!water!remaining!in!the!heater!after!each!use!completely.!
Otherwise!the!water!may!freeze!and!expand!to!damage!the!heater.!
Reduce!The!Chance!Of!Encrustation!
After!shower!and!turn!off!the!gas!valve,!drain!out!the!hot!water!in!the!gas!cylinder!until!cool!
water!is!out.!Then!turn!off!the!water!inlet!valve.!
Do!Not!Use!The!Heater!Water!For!Drinking.!
As!there!is!always!residue!in!the!heater,!the!water!supplied!by!the!heater!is!only!for!general!
use,!not!for!drinking.!
Dealing!With!The!Abnormal!Conditions!
Stop!the!heater!when!there!is!strong!adverse!wind!blowing!into!the!bathroom!from!outside!
causing!the!heater!unable!to!operate.!
In!case!of!abnormal!burning!(e.g.!flame!back,!flameout,!yellow!flame!or!black!smoke,!etc.),!
unusual!smell,! noise! or!other! abnormal! matters,! keep! calm!and! turn!off! the! gas! valve!and!
contact!the!service!center!or!the!gas!dealer.!
Preventing!Overheating!Scald!
After! shower,! or! when! the! water! temperature! control! knob! is! still! at! “high”! position,! be!
careful! of! the! temperature!of! the! water! at! the! beginning!and! ending! of!shower,!as!it! may!
remain!high!to!scald!your!skin.!
During! or! right! after! shower,! do! not! touch! any! part! of! the! heater! other! than! the! control!

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knobs,!especially!the!parts!around!the!flame!check!window.!
The!Following!Things!Are!Normal!
When!the!water!pressure!is!lower!than!0.3bar,!the!heater!cannot!be!ignited.!
The!drain!valve!is!dripping.!When!the!water!pressure!is!too!high,!the!drain!valve!will!release!
the!water!so!as!to!reduce!the!pressure!to!protect!the!heater.!
When!the!heater!is!supplying!hot!water!to!too!much!points!at!the!same!time,!the!hot!water!
flow!would!be!reduced,!and!at!times!no!hot!will!issue!at!all.!
During! shower,! if! the! heater! is! operated! for! more! than! 20! minutes,! the! flame! will!
automatically!turns!off!due!to!the!20‐minute!timer!safety!protection!function!of!the!heater.!
!
!!Maintenance!
Check!the!gas!tube/pipe!regularly!for!any!defect.!Contact!service!center!for!any!doubt.!
Clean!the!water!filter!regularly.!
Check!the!water!leakage!regularly.!
When! the! flame! turns! from! blue! to! yellow! with! black! smoke,! contact! the! service! center!
immediately!for!help.!
Every! half‐year! contact! qualified! professionals! to! check! whether! the! heat! exchanger! and!
burner!are!clogged.!
Always!keep!the!cover!of!the!heater!clean.!
!
! ! Cleaning!
The!Gas!water!heater!should!be!cleaned!annually,!keep!the!dust!away!from!the!flue!gas!
passageway.!See!the!Cleaning!Instructions!below.!(Only!for!service!engineer)!
1）Turn!off!power,!shutoff!gas!supply；!
2）Wait!one!hour!to!cool!down!water!heater;!
3）Remove!the!front!cover,!by!taking!out!Cover!screw;!
4）Using! compressed! air! or! equivalent! to! clean! the! area! between! the! fins! and! the! heat!
exchanger;!
5）Do!not!unscrew!or!move!any!other!parts!of!the!water!heater;!
6）After!cleaning,!put!the!front!cover!back.!
!
! ! Accessories!
! Item!Names!
QUANTITY!
Water!Heater!
1!
Mounting!Screws!
4!
Manual!
1!
Gas!Inlet!Connection!(with!rubber!seal!gasket)!
1!
Expansion!Bolts!(M6)!
2!
(Please!refer!to!the!products!for!final!accessories)!

13
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Trouble!Shooting!
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Symptom!
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!!!!!!!!Reasons!!!!
The!flame!goes!out!
No!ignition!after! opening! Water!valve!
Deflagrate!in!ignition!
Yellow!flame!
Abnormal!smell!
Bumpy!noise!in! ignition!
Low!temperature!of! ! water!at!”high”!
High!temperature!of! ! water!at!”high”!
Burning!after!closing! The!water!valve!
Indicator!light!on! (red)!
Remedies!
Gas!valve!not!open! ! !
!
!
!
!
!
!
!
!
!
!
Turn!on!main!valve!or!
replace!the!gas!
Gas!valve!half!open!
!
!
●!
!
!
!
●!
!
!
!
Turn!on!the!main!
valve!
Air!in!the!gas!pipe!
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●!
!
!
!
!
!
!
!
!
Several!opening!the!
water!inlet!valve!until!
ignition!
High!
!
!
●!
!
!
●!
!
●!
!
!
Unsuitable!
Pressure!
Gas!
Low!
●!
!
!
!
!
!
●!
!
!
!
Contact!the!repairer!to!
check!the!gas!pressure!
valve!
Cold!water!valve!
closed!
!
●!
!
!
!
!
!
!
!
!
Turn!on!the!water!
supply!main!valve!
Freezing!
!
●!
!
!
!
!
!
!
!
!
Use!after!de‐frozen!
Inadequate!water!
supply!
●!
●!
!
!
!
!
!
!
●!
!
Call!repairer!to!check!
water!pressure,!then!
clean!the!filter!
Water!temperature!
Control!mistake!
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!
!
!
!
!
●!
●!
!
!
Turn!the!temperature!
and!gas!rods!properly!
Insufficient!fresh!air!
●!
!
!
!
●!
!
!
!
!
!
Open!the!ventilation!
hole!to!let!enough!
fresh!air!in!
Power!shortage!
!
●!
!
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Replace!the!batteries!
Burner!clogged!
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Contact!the!service!
center!
Heat!exchanger!
clogged!
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ib.!
Water!control!unit!
failure!
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Ib.!
Ignition!needle!
movement!
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Ib.!

Fonderie SIME S.p.A. si riserva di variare in qualunque momento e senza preavviso i propri prodotti nell’intento di migliorarli
senza pregiudicarne le caratteristiche essenziali.
Fonderie SIME SpA se reserva la facultad de modificar sus productos en cualquier momento y sin previo aviso, con el
objetivo de mejorarlos sin perjudicar sus características básicas.
Fonderie Sime S.p.A - Via Garbo, 27 - 37045 Legnago (Vr)
Tel. [phone] - Fax [phone] - www.sime.it