Biasi MULTIPOINT 14S User manual

User manual and
installation
instructions
MULTIPOINT

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WARNING
WARNING
This manual contains data and information for both the user and the installer.
The user should look at the following chapters in particular: General warnings and safety, Flue gas
device, Control panel.
Please keep these instructions safe near the unit or gas meter for future use.
DANGER: Instructions marked with this symbol must be observed to prevent me-
chanical or generic accidents (e.g. injuries or bruises).
DANGER: Instructions marked with this symbol must be observed to avoid electri-
cal accidents (electrocution).
DANGER: Instructions marked with this symbol must be observed to avoid the dan-
ger of fire or explosions.
DANGER: Instructions marked with this symbol must be observed to avoid heat-re-
lated accidents (burns).
WARNING: Instructions marked with this symbol must be observed to avoid mal-
functions and/or material damage to the unit or other items.
WARNING: Instructions marked with this symbol contain important information
that must be read carefully.

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WARNING
GENERAL WARNINGS
The instructions manual forms an integral part of the product and therefore must be carefully re-
tained and always kept with the unit; if lost or damaged, a copy of these may be downloaded from
the manufacturers web site www.Biasi.co.uk.
Installation of the unit and any other service or maintenance operation must be carried
out by a Gas Safe registered installer.
The unit must be used for the purpose envisaged by the manufacturer. No contractual and
extra-contractual responsibility can be taken for damage caused to people, animals or things,
as a result of installation, regulation and maintenance errors or improper use.
The safety or automatic regulation devices of the unit must not be modified.
This unit is used to produce hot water, it must therefore be connected to a domestic hot
water distribution network compatible with its performance and power.
In the event of a water leak, turn off the water supply and promptly notify your Gas Safe reg-
istered installer.
If away for a long time, turn off the gas supply. If there is the risk of freezing, empty the water
heater of the water it contains.
In the event of a fault and/or poor operation of the unit, turn it off, refraining from any at-
tempt to repair it or any direct intervention.
Maintenance of the unit must be carried out at least once a year: this may be undertaken by
any Gas Safe registered engineer.
BASIC SAFETY RULES
The use of the unit requires strict observance of some basic safety rules.
Do not use the device for purposes other than those for which it is designed.
It is absolutely prohibited to obstruct the flue terminal grills and the ventilation opening of
the room in which the unit is installed, with rags, papers or anything else.
If a smell of gas is detected, do NOT activate electric switches, the telephone and any other
object that might cause a spark. Air the room by throwing doors and windows wide open and
turn off the gas at the mains. Contact the national gas emergency helpline on 0800 111999.
Do not rest objects on the unit.
Do not leave containers and flammable substances in the room where the unit is installed.
Any attempt at repair is prohibited in the event of a fault and/or poor operation of the unit.
Use of the unit by children or inexperienced people is prohibited.
Tampering with the sealed elements is prohibited.

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WARNING
Declaration of compliance
The undersigned BSG Caldaie a Gas S.p.A., legal office in Pordenone (Italy) - Via Pravolton, 1/b,
holder of EC CERTIFICATE for the products listed below,
DECLARES THAT THE UNITS
Instant gas water heater
Model Certification code
MULTIPOINT 14S SV14S
MULTIPOINT 16S SV16S
whose registration numbers are shown on the unit's data plate, comply with the following Euro-
pean Directives:
• Regulation (EU) 2016/426 on appliances burning gaseous fuels
• Efficiency Directive 92/42/EEC
• Electromagnetic Compatibility Directive 2014/30/EU
• Low Voltage Directive 2014/35/EU
• Ecodesign Requirements Directive 2009/125/EC
Furthermore, the units are built in compliance with accepted standards
and built pursuant to the technical safety regulations, in compliance
with the technical legislation in force, as required by art. 7 of Law 46 of
5 March 1990.

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TABLE OF CONTENTS
1 FEATURES AND BENEFITS .................6
2 TECHNICAL SPECIFICATIONS ..............7
2.1 Technical Data .................................7
2.2 Electrical diagram..............................9
2.3 Parts 14S - 16S ................................10
2.4 Dimensions 14S - 16S .........................11
3 HOW TO USE .............................12
3.1 Display operation .............................12
3.2 Preparation before ignition....................13
3.3 Temperature Setting ..........................13
3.4 Ignition & Water Outlet........................13
3.5 Use function mode............................14
3.6 Instant hot water production and real time
gas consumption display......................14
3.7 Check the cumulative amount of gas
and water.....................................15
4 SAFETY CAUTIONS . . . . . . . . . . . . . . . . . . . . . . . 15
4.1 Prevention of freezing.........................15
4.2 Gas accident prevention ......................16
4.3 Fire prevention ...............................17
4.4 Carbon Monoxide toxicosis prevention ........17
4.5 Abnormal conditions..........................17
4.6 Scald prevention..............................17
5 INSTALLATION ...........................18
5.1 Packaging and accessories ....................18
5.2 Installation requirements......................18
5.3 Installation method ...........................19
5.4 Conversion instructions .......................23
6 MAINTENANCE...........................28
6.1 Trouble-shooting guidance ...................29
6.2 Explanation of the Error Codes ................30
7 BOILER DISPOSAL AND RECYCLING . . . . . . . 31
8 WARRANTY CONDITIONS.................32
9 BENCHMARK COMMISSIONING &
WARRANTY VALIDATION SERVICE
RECORD .................................33
Gas fired continuous flow water heater
commissioning checklist ......................34
Service record ................................35
Model Certification code
MULTIPOINT 14S SV14S
MULTIPOINT 16S SV16S

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USE
DESCRIPTION OF UNIT
1 FEATURES AND BENEFITS
Micro-computer intelligent control system
The core component of the gas water heater
is a micro computer intelligent control system,
which is one of today’s most advanced mecha-
tronic technology. The CPU chipset can ana-
lyze automatically and set the optimal working
parameter rapidly according to different data
such as the flowing water quantity, the pres-
sure situation and the actual inlet water tem-
perature.
Digital control for automatic constant tem-
perature of outlet water
This function is to monitor the outlet water
temperature by a temperature sensor and to
transfer the information to the micro-comput-
er, so that the micro-computer can adjust the
gas and air supply quantity to guarantee the
constant outlet water temperature according
to the temperature set by the user and the ac-
tual inlet water temperature automatically.
Pressure
The lowest start-up water pressure of this
product could reach 0.02 MPa (0.2 bar) (or a
minimum flow rate of 2.5 L/min), so it could
also be used in the residence area with low
pressure.
"AI" Artificial Intelligent Memory Function
The water heater remembers the last set point
temperature removing a need to re set every
time the unit is activated.
Energy saving
This product has advanced technologies
called Strengthened Combustion and Forced
Combustion.
These features aim to make the best use of
heat energy with high working efficiency.
Set temperature by touch
You can set the required temperature easily by
touching the digital display. The temperature
range is from 35°C to 65°C.
Multiple safety protection
This product has built in safety protection, this
includes self-check protection, flame-out pro-
tection, over-heat protection, accidental pow-
er-cut protection, fan breakdown protection,
electric overload protection, electric leakage
protection, high wind pressure protection and
over temperature protection.
Tips
The above conclusion comes from the safety
protection test under lab conditions.
It may be affected by the surroundings in its
actual place of installation. Thus, please use
the product in proper conditions.

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USE
DESCRIPTION OF UNIT
2 TECHNICAL SPECIFICATIONS
2.1 Technical Data
Model MULTIPOINT 14S MULTIPOINT 16S
Nominal heat input (Hi) kW 28.0 30.0
Minimum heat input (Hi)
G20 kW 9.0 9.5
G30 kW 9.0 9.5
G31 kW 8.0 8.5
Nominal heat output
G20 kW 25.4 27.4
G30 kW 25.4 27.8
G31 kW 25.4 27.8
Minimum heat output
G20 kW 8.2 8.7
G30 kW 8.3 8.9
G31 kW 7.4 7.9
Appliance type C13-33
Gas type 2H-G20-20mbar / 3B-G30-30mbar / 3P-G31-37mbar
Gas category II2H3P / II2H3B/P
Nom. gas supply pressures
G20 Pa-mbar 2000 - 20
G30 Pa-mbar 2900 - 29
G31 Pa-mbar 3700 - 37
Min. gas supply pressures
G20 Pa-mbar 1700 - 17
G30 Pa-mbar 2000 - 20
G31 Pa-mbar 2500 - 25
Max. gas supply pressures
G20 Pa-mbar 2500 - 25
G30 Pa-mbar 3500 - 35
G31 Pa-mbar 4500 - 45
Maximum gas flow rate (Q.nom.)(Hi)
G20 m3/h 2.96 3.17
G30 kg/h 2.21 2.37
G31 kg/h 2.18 2.33
Minimum gas flow rate (Q.min.)(Hi)
G20 m3/h 0.95 1.01
G30 kg/h 0.71 0.75
G31 kg/h 0.7 0.74
Max. flue gas temperature at 60°/80°C G20 °C 118 118
Min. flue gas temperature at 60°/80°C G20 °C 65 65
Max. flue gas mass flow rate G20 kg/s 0.0215 0.0230
Min. flue gas mass flow rate G20 kg/s 0.0045 0.0050

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USE
DESCRIPTION OF UNIT
Max. air mass flow rate G20 kg/s 0.0215 0.0224
Min. air mass flow rate G20 kg/s 0.0047 0.0048
CO2 content (Nominal heat input) G20 % 5.16 5.16
O2 content (Nominal heat input) G20 % 11.7 11.7
CO content (Nominal heat input)
G20 ppm 227 229
NOx class 6
Weighted NOx ppm 17.98 30.53
Max. flow rate (rise 25 °c) kg/min 14.0 16.0
Max. water pressure (Pw) bar 10 10
Min. water pressure (Pw) bar 0.2 0.2
Electrical power supply 230 V ~ 50 Hz
Degree of electrical protection IPX4 IPX4
Ignition method Water control automatic pules ignition
Destination country GB - IE
Gas inlet joint G 1/2 G 1/2
Cold water inlet joint G 1/2 G 1/2
Hot water outlet joint G 1/2 G 1/2
Flue duct diameter mm Ø 60 x Ø 100 Ø 60 x Ø 100
ErP Data MULTIPOINT 14S MULTIPOINT 16S
Declare load profile XL XL
Water heating energy efficiency (ηWH) % 84.0 80.5
Water heating energy efficiency class A A
Daily gas consumption (corrected) kWh 23.583 24.845
Daily electrical consumption (corrected) kWh 0.064 0.064
Annual fuel consumption AFC (GJ) 18 19
Annual electricity consumption AEC (kWh) 14 14
NOx mg/kWh 29 47
Indoor sound power level (LWA) dB 61 63
G20 Hi. 34,02 MJ/m3(15°C, 1013,25 mbar)
G30 Hi. 45,65 MJ/kg (15°C, 1013,25 mbar)
G31 Hi. 46,34 MJ/kg (15°C, 1013,25 mbar)
1 mbar corresponds to approx. 10 mm H20

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USE
DESCRIPTION OF UNIT
2.2 Electrical diagram
Figure 2.1
1 Gas separate valve 1
2 Gas proportional valve
3 Thermostat
4 Main board
5 Direct current fan
6 Power cord
7 Flame detector
8 Igniter
9 Earth
10 Display
11 Water inlet temperature sensor
12 Water outlet temperature sensor
13 Water flow sensor
14 Gas separate valve 3
15 Main gas valve
16 Gas separate valve 2
GND
1
2
3
5
4
6
7
8
9
10
11
12
1316 1415

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USE
DESCRIPTION OF UNIT
2.3 Parts 14S - 16S
Figure 2.2
1 Flue duct connector
2 Front panel
3 Display and control panel
4 Safety valve discharge
5 Hot water outlet
6 Gas inlet
7 Cold water inlet
8 Cold water inlet filter
9 Power cord
1
2
3
5
48
9
7
6

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USE
DESCRIPTION OF UNIT
2.4 Dimensions 14S - 16S
Figure 2.3
A Hot water outlet 1/2”
B Gas inlet 1/2”
C Cold water inlet 1/2”
F Safety valve discharge
G Cold water inlet filter
A
F
B
G
C
100
60 79
12
85
130
180
566
602
616
655
187
88
68
88
42
44
126 158 186
345
42
50
A
FG
C
B

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USE
USER INSTRUCTIONS
3 HOW TO USE
3.1 Display operation
Display info
Figure 3.1
Water flow
Gas flow
L/min
m3/h
Flame feedback icon
When the water heater is working, this flame
icon will display.
Fan icon
Dynamic display when fan in operation.
Inlet water flow
When a flow of water is detected the
draw off icon is activated.
Working mode icon
Show the current operating mode.
Information display area
• Real-time water flow production indicates.
• Real-time gas consumption indicator.
• Accumulative amount of water usage.
• Accumulative amount of gas consumption.
Adjust temperature
adjustment icon:
• Temperature adjustment mode,
flashing display.
• Always alight, non-adjustment
state.
Main digital display area
• In normal operation, the tempera-
ture setting is displayed.
•If there is a fault, the fault code will
display.
Child lock function
When the child lock protection is on,
the padlock icon is shown.
When attempting to set the
temperature above 48 °C the child
lock icon will flash to show an unsafe
setting is being attempted.
Water flow, gas flow indicator.
Button information
Figure 3.2
@ button
Press this key to select the system working
mode or query function.
ON/OFF button
Water heater, press to turn on and
turn off.
Up and down button
For selecting temperature or water
flow settings.

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USER INSTRUCTIONS
3.2 Preparation before ignition
• Make sure that the gas used is in accordance
with the gas stipulated on the data label.
• The electric installation must comply with
technical standards, in particular:
- It is mandatory to connect the gas water
heater to an effective earthing system via a
specific terminal.
- A switchable fused spur must be installed
near the gas water heater to allow com-
plete isolation in conditions of category III
over-voltage.
• Switch on the power to the gas water heater
(The buzzer sounds “bi”).
• Turn on the gas valve.
If the power supply cable is dam-
aged, it must only be replaced by a
qualified technician.
3.3 Temperature Setting
• Press the On/Off key on the control panel,
the screen will display the default hot water
temperature. Press Up or Down to set the
hot water temperature as desired. The low-
est hot water temperature of this product
is 35°C, highest is 65°C. From 35~48°C each
time you press the button it will change by
1°C. From 48~65°C each time you press the
button it will change 5°C (48°C, 50°C, 55°C,
60°C, 65°C).
3.4 Ignition & Water Outlet
• When a hot water outlet is opened the inlet
water flow will show the draw off icon on
the display screen. The display shows the set
temperature of outlet water.
• When in use the flow temperature can be
adjusted. When you turn the hot water on
for the first time you can only adjust the tem-
perature between 35-48°C (child lock func-
tion to prevent burns). If you want to set the
temperature higher than 48°C you must turn
off the hot water demand first, then you can
increase the temperature before turning on
again.
When a water outlet is open, but the switch
stays in the OFF position, the water heater
will stop working, and only cold water runs
out. If hot water is needed, press the ON but-
ton.
• When the water heater is turned off the fan
will continue to run for several seconds.
The water heater will show the temperature
set the last time it was use.
Attention:
• If the water outlet is open before the water
heater is switched on, the gas water heater
will go into a protective mode, and the buzz-
er sounds. Please close the water outlet.
• It might take several trial ignitions after in-
stallation or the first use after gas interrup-
tion to push out all the air remaining in the
gas pipe.
• The temperature shown on the screen is
the set temperature, while the outlet water
temperature differs according to the length
of pipes and different seasons. Therefore,
please refer to the actual outlet water tem-
perature.
• If hot water flow exceeds the water heater’s
capacity, the water may not be hot enough.
Please reduce the water flow accordingly.
• Every time the water heater starts working,
please pay attention to the set temperature
on the display and be careful not to be scald-
ed.
• In order to avoid being scalded, always verify
the water temperature before use.
• Should the gas water heater stop working
and the display shows error codes, please
close the water valve and reopen. Or press
the On/Off button until the machine is off,
and then restart it. If the water heater still
cannot operate normally, please turn off the
gas valve and cut the power, recharge the
machine and ignite again after a few min-
utes.

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USER INSTRUCTIONS
3.5 Use function mode
In standby mode (ie, no water status), press the
function (@) key, you can select "Auto", "Eco",
"normal” in turn. The system default mode is
set to normal.
Three types of function mode instruction
• Normal mode (default): This mode allows
the user to set the temperature. The "Auto"
and "Eco" display lights are not lit.
• Auto mode: ("Auto" display light is bright.)
This mode will adapt the output tempera-
ture based on the water inlet temperature.
This automatically adjusts the set tempera-
ture (as shown in Figure 3.3) allowing users
to get the most comfortable hot water sup-
ply.
Figure 3.3
Temperature mapping table
N. Local Water
Temperature
Corresponding
Temperature
1 ≤ 15°C 45°C
2 16°C-21°C 43°C
3 22°C-27°C 40°C
4 ≥ 28°C 38°C
Note: Under the Auto mode, after the water
heater is switched on, the temperature dis-
played is the one set before the heater starts
to work. The temperature will not change ac-
cording to the local water temperature change
after the heater starts to work.
• Eco mode: ("Eco" display light is bright.) In
Eco mode, after calculation by the microcom-
puter the water heater automatically adjusts
the amount of gas supply. This not only saves
gas, but can also guarantee a constant water
temperature to meet the requirements of us-
ers. In Eco mode, the user can freely select
the desired water temperature by pressing
the up/down keys to adjust the temperature.
This does not exit the Eco mode. To exit the
Eco mode the user needs to enter the stand-
by mode and press the function key again to
change modes.
3.6 Instant hot water production
and real time gas consumption
display
When the water heater is working, the display
will take turns showing the current real time
hot water production and real time gas con-
sumption, the figures will be changed accord-
ing to the actual working conditions, so that
users can understand the water heater current
working conditions.
For example: When the real time information
display "12,0 l/min", this indicates that the real
time hot water production is 12L per minute.
When the real time information displays "2,0
m³/h", this indicates that current real time gas
consumption per hour is 2,0 m³.

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USE
USER INSTRUCTIONS
Figure 3.4
Gas flow m3/h
Water flow L/min
Real-time gas consumption
Real-time hot water production
Alternate
display
3.7 Check the cumulative amount of
gas and water
The @ button can inquire about the cumula-
tive water and gas consumption.
Click the @ key to query cumulative amount of
water usage, press @ key again to display the
accumulated gas consumption information.
Press a third time or do not touch for 20s and
you will exit this function.
Note:
• Real-time gas consumption is shown in units
of m³/h.
• Real-time hot water production is shown in
units of L/min.
• The total amount of gas and water consump-
tion is shown in m3. When the counter has
reached 999 m3it will automatically reset to 0.
• Cumulative gas consumption and cumula-
tive amount of water is automatically cleared
after power failure.
• The contents of this function is only for ref-
erence, can not be used for metering meas-
urements.
4 SAFETY CAUTIONS
4.1 Prevention of freezing
Drain the residual water inside the heater to
prevent freezing after every use when the en-
vironment temperature is near or under 0°C,
do as instructed. (Figure 4.1)
• Close down the gas valve 1.
• Turn the water temperature knob 2 to“LOW”
position, or turn the water volume button
knob to “LARGE” position (level).
• Close the cold water inlet valve sans 3.
• If there is a control valve 4 at the hot water
outlet, please open it.
• Turn the drain valve 5 and take off, replace
it after the residual water is completely dis-
charged.

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USE
USER INSTRUCTIONS
Figure 4.1
1
2
3
4
5
1 Gas valve
2 Water volume knob
3 Water volume
4 Control valve
5 Drain valve
4.2 Gas accident prevention
• Check if the burner is out after use and do not
forget to turn off the gas valve and power if the
burner fails to extinguish.
• Always check the gas connectors for gas leak-
age with leak detection fluids. If any gas leak-
age is detected, open the room windows and
doors. At that moment, do not ignite or oper-
ate the switch of electric appliances or plugs
because the flame or electric spark can cause
an explosion.
• Heaters must use the gas type which the heat-
er is designed to use, different type of gas must
not be used.
•If the flame goes unsteady, stop using the wa-
ter heater and contact your qualified gas safe
registered installer or service engineer for re-
pair or adjustment.
Turn off gas after use.
Open the window in case you can
smell gas.
Don't touch electric switch.

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USER INSTRUCTIONS
4.3 Fire prevention
• Do not leave the water heater unattended
whilst in operation.
• In case of power failure or water failure, turn off
the gas valve and water inlet valve.
• Do not place towels or clothes on top of the
water heater.
• Do not store flammables, explosives or vola-
tiles near the water heater.
•Never incline the gas cylinder or turn it upside
down.
Do not hang anything on or over-
head.
Do not store flammables, explosives
or volatiles near the water heater.
4.4 Carbon Monoxide toxicosis preven-
tion
• This product must exhaust the waste gas out-
doors so the flue duct must be connected to
the joint on the top of the water heater to ex-
haust the waste gas out to an outdoor area.
Otherwise, it will cause danger or even death.
• Too low or too high gas pressure leads to ab-
normal combustion. At that moment, stop us-
ing the water heater and get in contact with a
gas safe registered professional.
• Dust and accumulated carbon would block
the heat exchanger due to long periods of use,
and affect the combustion performance, caus-
ing Carbon monoxide to increase. Therefore,
contact a qualified person to clean and clear
the dust and accumulated carbon every year
to ensure the combustion product discharges
smoothly.
• The heater must be installed vertically, if in-
clined it will make the flame touch the heat
exchanger and cause incomplete combustion.
4.5 Abnormal conditions
• If there is abnormal operation such as: (flame
light-back, flame lift, yellow tip or black smoke,
etc), smell or noise, or other emergent situa-
tions, keep calm and shut off the gas supply
valve and power switch, and contact the man-
ufacturer or a gas safe registered professional
for repair or adjustment.
4.6 Scald prevention
• When the use of the water heater is not contin-
uous be careful not to be scalded by high tem-
perature hot water at the start and stop times.
•During use and immediately after, do not touch
the water heater except the control panel in or-
der to prevent scalding
Warning: Any interference with a
sealed component is forbidden, a
fire or explosion may result causing
property damage, personal injury or
loss of life.

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INSTALLATION
INSTALLATION
5 INSTALLATION
Contact your local gas safe registered install-
er who must also be qualified to work on gas
water heaters (users are recommended not to
install by themselves). The installer should be
called on to install and adjust the appliance,
where appropriate.
It is prohibited to use this gas water heater
when the flue pipe has not been installed cor-
rectly according to instructions.
5.1 Packaging and accessories
Description Quantity
Gas water heater 1
Expansion screws 1
Mounting screws 2
User manual 1
Self-tapping screws 2
Flue duct (C13 type) (optional) 1
5.2 Installation requirements
• The flue of the gas water heater should be
installed through an external wall, the heater
cannot be installed outdoors (Figure 5.1).
Figure 5.1
Indoor Outdoor
• The gas water heater installed in a suitably
ventilated room, in accordance with the reg-
ulations in force.
• The flue of the heater cannot be connected
to a common flue (Figure 5.2).
Figure 5.2
Common
flue
• Please don’t install the heater in places
where special chemicals are used, such as
laundries or factories etc., otherwise it may
cause rusting, shorten the lifetime of the
heater, or prevent normal operation.
• Don’t install the heater above the gas stoves
or other heat sources (Figure 5.3).
Figure 5.3

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INSTALLATION
INSTALLATION
• The gas water heater should be kept away
from combustible materials with the dis-
tance shown in Figure 5.4 at least.
Figure 5.4
450
50 50
350
300
Combustible materials
• When the installation area contains com-
bustible material then a non combustible
heat resistant mounting plate that exceeds
the size of the water heater frame by at least
10 mm in all directions should be used (Fig-
ure 5.5).
Figure 5.5
Frame-proof board
Combustible wall
• The electric wires and electric equipment
are not allowed to be placed on the top of
the gas water heater. The horizontal distance
between the gas water heater and other
electric equipment should be more than
400 mm.
• The power socket must have a reliable earth
wire to improve safety. It is recommend-
ed that a neon fused switch socket is used.
Whenever the water heater is not in use,
please switch it off at the fuse spur. The pow-
er supply socket should not be installed in
wet or damp areas.
• The socket should be installed at the side of
the product, and never be installed below
the machine or a place that is susceptible to
splashes, near a heat source, in exposure to
sun and rain, or the place where it is not easy
to control.
• The installation of the spur should be in line
with the current requirements of the IEE wir-
ing regulations.
5.3 Installation method
Installation of gas water heater
• Drill holes in the wall according to Figure 5.6,
Figure 5.7 and Figure 5.8, it is strongly rec-
ommended that strong fixings are used in
the top and bottom securing holes.
Figure 5.6

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INSTALLATION
INSTALLATION
Figure 5.7
Figure 5.8
180 mm
601 mm
Installation of water and gas pipes (Figure
5.9)
• It can be used when the flue system can
ensure that the provided gas pressure can
reach the lowest requirement. If gas water
heater reaches the rated heat input, the gas
pressure must reach the rated heat input in
the technological parameter form.
MULTIPOINT 14S - 16S
Figure 5.9
A Hot water outlet 1/2”
B Gas inlet 1/2”
C Cold water inlet 1/2”
F Safety valve discharge
G Cold water inlet filter
A
FG
C
B
AC
B
G/F
• Gas inlet
1.Before connecting the gas supply, check
the rating plate on the right side of the
right front cover to be sure that the heater
is rated for the same gas to which it will be
connected.
2.All such pipe shall be either new or previ-
ously used for no other purpose than con-
veying gas; and must be in good condition.
3.When your connections are made, check
for gas leaks at all joints (this includes all
existing piping). Apply leak detection fluid
to all gas fittings and gas valve. Bubbles
are a sign of a leak.
NOTE: No substance other than air, carbon di-
oxide or nitrogen can be introduced into the
gas piping.
NOTE: If you have a leak, shut off the gas. After
verifying the leak, tighten appropriate fittings
to stop the leak. Turn the gas on and check
again with a leak detection fluid. Never test
for gas leaks using a match or flame.
• Cold water inlet
1.When facing the heater, the cold water in-
let is on your right and the hot water out-