BLOWTHERM SIMPLEX 35 User manual

INSTRUCTIONS MANUAL FOR BOILERS MODELS:
SIMPLEX 35
SIMPLEX 50
SIMPLEX 80
nº 1460080 EN
Upd. 01/07/09

FLOOR STANDING WATER BOILERS MOD. SIMPLEX
n.1460080EN07-2009
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INDEX
1IMPORTANT.....................................................................................................................3
2BUILDING CHARACTERISTICS...................................................................................4
2.1 TECHNICAL DATA....................................................................................................5
2.2 CONTROL PANEL.....................................................................................................6
3INSTALLATION................................................................................................................7
3.1 BURNERMATCHING ...............................................................................................7
3.2 OPERATING...............................................................................................................7
4MAINTENANCE................................................................................................................8
5WIRING DIAGRAM..........................................................................................................9

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1IMPORTANT
qThis booklet contains operating and maintenance instructions and must be handed to the user.
Please read all the instructions and warnings carefully as they provide important advice for safe
installation and operation. This booklet should be kept in a safe place for future reference.
qThe boiler must be installed by qualified personnel according to current safety regulations and
following the Manufacterer’s instructions. Improper installation may cause damage or injury. The
Manufacterer cannot be held responsible in such case.
qFirst unpack the boiler and check that it is complete. In case of doubt, do not use the boiler and
return it to the Supplier. No packaging (including wooden crates , nails, staples, plastic bags,
polystyrene foam, etc.) must be left where children can play with as it may constitute a hazard.
qThis boiler must only be used for the purpose for which it was designed. It must be never be used
for other purposes as this would create a hazard. The Manufacturer cannot be held liable for
damage caused by improper or unreasonable use.
qBefore cleaning or servicing the boiler, disconnect from the power mains by operating the switch
on the system or the relevant on-off devices.
qDo not obstruct the intake or outlet grilles.
qIf the device does not work or malfunctions, disactivate it but do not attempt to repair it yourself.
You must contact a qualified service operator. Repairs must only be carried out by a service
centre authorized by the Manufacturer, using original spares. Failure to do this may well affect the
safety of the device.To guarantee complete efficiency and correct operation, it is very important to
follow the Manufacturer’s instructions. Schedule maintenance must be carried out by a qualified
service operator.
qIf the boiler is taken out of service, all parts liable to cause a future hazard must be disposed of
properly.
qIf the boiler is sold or transferred to another owner, or if you move premises and leave the boiler
behind, always make sure that the booklet stays with the boiler so that it can be consulted by the
new owner and/or installer.
For boiler’s mounting and location:
MUST COMPLY WITH THE RELEVANT LOCAL SAFETY STANDARDS

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2BUILDING CHARACTERISTICS
The SIMPLEX boilers are pressurized combustion heat exchangers made of steel with inversion flame
type and successive turn in the tube system.
The high speed of the fumes inside the tubes and the high turbolence provoked with the new
TURBOLATORS IN STAINLESS STEEL AISI 430, favours the heating exchange, decreases of the
consumption, increasing the combustion yeld that reachs an efficiency over 90%.
The jacket consists of elegant panels in steel painted with epoxy powder paint, and is totally insulated
with rock wool in order to give it high an heat insulation characteristics.
The power losses on the smoke side are so limited as the allow a wide range of choice for operation
with gas oil-fire burners with forced air.
The front door hinge-mounted it’s insulated inside with ceramic fiber to be resistant high temperature
and take the functions:
§fumes reversal chamber
§furnace and tube system inspection and cleaning
§burner support
The control panel is complete with all the instruments necessary to optimise the control and the
correct operation of the boiler.
The boiler body is made of iron and completely is welded with procedure mag (metal-arc active gas),
arc welding in active gas atmosphere with electrode fuse.
In order to ensure maximum quality and reliability over time, all the boilers are subjected to testing
under severe conditions during all the phases of the production.
The shelves are checked and tested hydraulically at 4,5 bar.
The maximum working pressure is 3 bar.

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2.1 TECHNICAL DATA
35 50 80
Nominal capacity kW
kcal/h 31,8 27350 47,0 40450 76,4 65704
Furnace capacity kW
kcal/h 34,5 29650 51,0 43850 82,5 70950
Efficiency at nominal charge %92,2 92,2 92,5
Efficiency at reduced charge (30%) %89,6 89,6 89,6
Max working temperature °C 90 90 90
Max working pressure bar 333
Combustion’s chamber lenght mm 400 490 540
Combustion’s chamber volume dm327.2 35,8 53,3
Smoke discharge mm 127 127 127
Smoke’s exit temperature °C 153 153 156
Combustion chamber pressure Pa 40 45 50
Electrical feed V / Hz 230 / 50 230 / 50 230 / 50
Height amm 815 815 935
Lenght bmm 600 600 650
Deepness cmm 785 985 985
dmm 650 650 770
emm 310 310 340
fmm 355 355 395
gmm 80 80 80
hmm 600 600 700
Weight kg 112 122 168
Plant return A∅1"1/4 1"1/4 1"1/4
Plant delivery B∅1"1/4 1"1/4 1"1/4
Smoke discharge C∅127 127 127
Boiler discharge D∅3/4" 3/4" 3/4"

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2.2 CONTROL PANEL
ATimer (optional) ESwitch on/off
BHeating regulation thermostat FHeating thermometer
CSafety thermostat manual reset GHydrometer
DFuse HSummer-winter switch

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3INSTALLATION
The boiler must be installed by a qualified person. The size and features of the room must comply with
the relevant safety standards. All regulations involving the safety of technical installation must be
complied with.
Before connecting the heating system advise to carried out a tubes washing to prevent that impurity
put in jeopardy the boiler corrected functioning.
Flue gas be discharged through pipes with a diameter no less than that of the hood and connected to
a stack of suitable capacity. The stack must be of a suitable size and height to ensure minimum draft
as per specification and thermally insulated as prescribed.
The connection of the burner to the fuel piping must be carried out by qualified personnel following the
instructions with the burner
The electric connecting must carried out stable and safe. It’s more important to carry out the electric
connecting to the feeding line under the laws in force.
Before electric connecting it must be checked an efficient earthing wiring because this is a basic safety
requirement.
Not use the water-pipes and the gas-pipes for earthing.
Besides verify the wiring suitable for the equipment and burner maximum power adsorption.
3.1 BURNER MATCHING
For installation of the burner, the electrical connections and the
necessary settings, consult the burner instruction manual.
Ascertain that the correct type of burner has been
chosen for the boiler, checking the technical specifications of both.
The burner blast tube must be sized as shown in the picture here
beside.
Model Cement Hole on door
Ø(mm)
Door
Thickness
S(mm)
Blast tube burner
lengthmin-max
L(mm)
Internal Furnace
Diameter
(mm)
Internal Furnace
Length
(mm)
SIMPLEX 35 110 135 150/180 296 400
SIMPLEX 50 110 135 150/190 296 490
SIMPLEX 80 110 150 165/205 345 555
3.2 OPERATING
Starting up the boiler
Before starting up the boiler, check that:
♦the system is full of water and that the pressure on the gauge does not exceed the rated value of
1,5÷2 bar
♦the stack was built in compliance with the current regulations, perfectly free and there is not air
infiltration
♦the connection between boiler and stack is perfectly tight-proof
♦the flanges or fittings are perfectly sealed and the power supply voltage corresponds to that
required for the boiler
♦the burner rated values (power supply and nozzle flow) are compatible with the boiler and that
there is no air infiltration in the fuel oil pipes
♦all air has been relieved from the system
♦pump delivery and lift suitable for heating system delivery

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Operating
The SIMPLEX boiler is only designed to supply hot water for room heating. After pressing the ON-OFF
button to turn on the boiler and set the required temperature on the thermostat, the burner starts and
after the temperature set on the anti-condensation low point thermostat (TM= 55°C), the heating
circulating pump starts.
When the preset temperature is reached, the burner stop until new heat is requested.
N.B. If the boiler exceeds 100 °C, the safety thermostat cuts in and stops the burner. To
resume operation, unscrew the thermostat cap and press RESET. If this occur again, ask for the
service by a qualified personnel.
4MAINTENANCE
The boiler must be cleaned at least once every season. Turn on the main power switch andrelease
the on/off button. Remove the burner and plate together with the lining. Open the front door, the rear
stack and the cast iron plate covering the rear element.
Clean the horizontal flue gas conduits, the combustion chamber. The fumes range cleaning it’s more
important, only millimetresof soot increase the flue gas outlet temperature at least 30°C decreasing
one percentage point of thermal efficiency.
Water properties
The chemical and physical properties of the water in the circuit and refill water are the basic elements
for safe trouble-free operation of the system. It’s known that bad water quality causes inconveniences
to the entire system, the most common and serious inconvenience being the formation of scale on the
heat exchange areas. Due to their considerably low heat conductivity, scale deposits, although of a
small thickness, create insulation of the wall that are not cooled by the circulating water and are thus
subjected to overheating, and this provokes uneven expansion or localized thermal shocks.
Water treatment is required when:
water system are very extensive
water available has a high hardness index
for any reason whatsoever, the system needs to be partially or fully emptied and then filled up again
Water properties for filling and topping up are:
Appearance clear
Total hardness max 20 °F
Free oxygen max 0.005 mg/l
Organic substances max 0.5 mg/l
pH min. 8.5

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5WIRING DIAGRAM
NNeutral NO Programming time neutral
LPhase LO Programming time phase
TA Environment Thermostat (optional) CO Programming time contact
FFuse TM Anti condensation low point thermostat
CR Heating circulating pump IL Switch on/off
BR Burner IEI Summer-winter switch
NBR Burner neutral TSR Safety thermostat manual reset
LBR Burner phase TRC Regulation thermostat

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BLOWTHERM S.P.A.
Via GUIDO RENI 5 –35134 PADOVA –ITALY
Tel. [phone] –Fax [phone]
Technical specifications and measurements are not binding.
The Company reserves the right to make changes without prior notice.
We decline all responsibility for inaccuracies contained herein if they are the result of misprints or clerical errors.