Installation Instruction; Model Of B11Bs Water Heater; Installation Order - HTW OBI Serie Manual De Usuario E Instalacion

Model of B11BS heater
The heater is equipped with an exhaust security thermostat.
If the exhaust outlet is not completely open, the thermostat
is activated. Once the gas valve is closed, the heater will have
an ignition once again after it has cooled off.
The activated temperature of anti-block protection thermostat is
75℃±5℃. When protection happens, electric circuit is cut and
unit doesn't work. The recovery temperature of the anti-block
thermostat is 50℃±5℃. When it is recovered, the electric circuit
is on. The unit works right. If the system stops working in 2
minute when the flue pipe is blocked, it means anti-block function
is in protection. If not, please contact professional people to fix it
following the rules of EN 26 standard.
If the units stop working within 3 minutes from start, it is the
!
protection caused by the thermostat. In this case, it is
necessary to check if there is any block on the flue pipe. If
problem still not solved, please contact professional people
to check further both the flue block and thermostat function.
The operation of exhaust monitor is disabled or put out of service.
!
The operation of exhaust monitor can cause damages
!
to the health or even the death.
This heater only can be installed in a room with good
!
ventilation.
Installation
The heater can only be installed inside a room, ventilated area .

No installation of the heater in frost places.
Keep the heater with good ventilation.
No cables or electric appliances can be placed on the heater.
Keep the heater away from heat sources such as hearth.
Please fulfill the cleaning and the maintenance for the heater
according to relevant requirements of interval.
Please maintain a certain distance between vent-pipe and the

ceiling of the room or other decorative objects.
Inflammable materials are banned from being placed less than
500mm away from the heater. If necessary, please install an
outer insulating layer.
The heater must be installed onto a vertical wall in a correct

vertical way.
The maximum pressure for which the appliance is designed,
stating that even with the effects of water dilation, the water
pressure in the appliance shall not exceed this value.
The air flow in the circumstance around the gas water heater
should be according to the follows
Model
HTW-CLA-11NOXOBIGLP
HTW-CLA-11NOXOBIGN
HTW-CLA-14NOXOBIGLP
HTW-CLA-14NOXOBIGN
6

Installation instruction

Air consumption
Gas Category
(m³/h)
I , I
3P(37) 3B/P(30)
33
I
3+(28-30/37)
I , I , 21
2H 2E
I , I
3P(37) 3B/P(30)
42
I
3+(28-30/37)
I , I , 26,8
2H 2E

Installation order

Confirm the drilling position according to the installation

scheme or installation chart in the Speciation Table.
Open the close cover of the heater and pull out the operation
button.
Screw off the fixed bolts in the lower part of the casing and

then take off the casing.
Fix the heater.
Take off the plastic hoods used for connections of the heater.
Install the connectors.
Mount the casing and then replace the operation button.
Minimum distance / ventilation
Please pay attention to the special regulations for
!
installation required by the local country.
The water heater is controlled by water flow rate to
achieve on/off. Minimum starting water pressure is 0.3bar
When there is water going through the water operated
gas valve (water flow rate sitisfied with minimum water
flow rate refers to specification table), the ignition will start
to work and the gas valve will be energized.The unit will
be ON mode.
When the water flow is cut, the water gas valve will cut
the gas valve as well. the unit will stop working.