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2.6. MOUNTING TO PARTIALLY -
PROTECTED OUTER SPACES
Installation instructions:
This boiler can be installed in partially
protected outer spaces. Partially-protected place means that
the boiler is located at places where it is not directly exposed to
atmospheric factors and precipitation (rain, snow, hail, etc.).
Protection Against Freeze:
The boiler is equipped with a system
that automatically prevents the freezing by putting the pump
and the burner into operation when the water in the boiler
falls below 5 °C. The protection against freeze depends on the
following conditions:
- If the boiler is correctly connected to gas and electricity
sources;
- If the boiler is supplied constantly from gas and electricity
sources (if main switchgear is on)
- If the boiler does not come to the fault condition due to lack of
ignition;
- In order to ensure the circulation of the installation water, the
installation valves and radiator valves under the boiler must be in
the open position. Under these conditions the boiler is protected
against freeze up to an ambient temperature of -5 ° C.
The lowest temperature -5°C.
If the temperature of the boiler is
mounted in an environment that may be below -5 °C and if the
gas inlet is cut off or the ignition fails, the Anti-Freeze System
will not be put into practice and freezing/icing will occur in the
device. The following instructions must be followed to prevent
freeze risk:
- Protection against freeze by placing in the heating circuit an
antifreeze in a percentage of the required minimum temperature
for the heater by a well-known antifreeze producer (special
for heating appliances) in which the heater is intended to be
stored, and by carefully following the instructions. The materials
from which the boilers are made are resistant to ethylene glycol
and propylene-based icing inhibitor liquids. Observe suppliers'
warnings about their life and possible disposal methods.
Protecting the boiler against freeze/icing is only guaranteed
on these conditions:
Damage caused by failure to comply with the foregoing
and interruption of electrical energy shall be excluded in the
effectiveness of the guarantee.
If the boiler is mounted in places where the temperature falls
below 0 °C (both for domestic use and for heating purposes),
both the heating installation and the domestic water pipes must
be insulated.
2.7. ELECTRIC CONNECTIONS
The electric safety of the boiler takes place only if it is fully
connected to an effective grounding system, as stipulated by
the current safety regulations. If there is no grounding, the
grounding shall not be made on the socket through neutral line!
The use of gas and water connection pipes for grounding is
dangerous and unacceptable.
WARMHAUS A.S. cannot be held responsible for any damage or
loss that may occur to a person or property due to the absence of
grounding connection of the boiler and the failure of grounding by an
authorized electrician to comply with the applicable regulations and
standards..
Also check that the electrical installation meets the maximum
power that can be pulled specified in the technical specifications
label on the boiler. Boilers should be connected with "X" type
special power supply cables without socket. The Warmhaus boilers
have a protection level of IPX5D. Power supply cable must be
connected to a 230 V + 10%; - 15% 50Hz network with L-N polarity
and grounding connection; on the same network, a high voltage
category 3rd class multi-pole contact cutter should be installed.
When it is necessary to change the cable, be sure to contact our
Authorized Warmhaus Service.
The power supply cable must follow the specified route.
If the fuses on the adjustment card are to be replaced,
use a 2A or 3.15A quick-type fuse. The use of adapters,
multiple sockets and extension cables is not permitted for the
device to be supplied from the general electric network.
2.8. OPTIONAL CONTROLS: ROOM
THERMOSTAT, EXTERIOR TEMPERATURE
SENSOR AND OTHER
Control devices such as Room Thermostat, Outside Temperature
Sensor, etc. must always be connected to Warmhaus boilers by
an authorized service personnel. If the connections are made by
unauthorized persons, the boiler will be out of warranty.
Control devices such as Room Thermostat, Outside
Temperature Sensor, etc. are provided to Warmhaus
boilers as optional accessories and must be Warmhaus
certified.
See use instructions for placing the Outside Temperature Sensor.
This sensor, which can be connected directly to the electrical
installation of the boiler, automatically reduces the maximum
stream water temperature at the installation when the
outside temperature increases to run the temperature sent
to the heating installation in compliance with the exterior
temperature changes. The Outside Temperature Sensor is
actuated when connected independently of the typology
of the room thermostat used and works in conjunction with
room thermostats. The relationship between the installation
inlet temperature and the outside temperature is determined
according to curves in the diagram from the position of the
button on the boiler panel (or on the control panel if connected
to the boiler) (Figure 2.15).
The electrical connection of the Outside Temperature Sensor
should be made on pins no. 3-4 in the Low Voltage range where
terminal pins 1-14 are located in the boiler electronic board
(Figure 2.18).
Figure 2.14
RC21.13 Room Unit with Heating Area Programming and Hot
Water Tank Programming for Temperature Control and Hot Domestic
Water
