THERMEx Combi Inox IRP 150V, User Manual

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The temperature adjustment knob is located on the control panel. The thermal switch is used for EWH
protection against overheating and disconnects EWH when water temperature exceeds +93°C
(±5°
С ).
Backlight lights of power selection keys are the EWH operational status indicator. Backlight lights light
up when water is heated and turn off when water reaches the temperature set by a thermostat.
The device includes 3 possible heating modes: fast, moderate and economic.
Placement and Installation
All installation, plumbing and electrical work must be carried out by qualified
personnel.
It is advisable to install the EWH as close as possible to the place of use of hot water in order to reduce
heat losses in the pipes.
The installation plan of the water heater is shown on Fig. 1 .
1. EWH
2. Cold water supply nozzle
3. Hot water outlet nozzle
4. Safety valve
5. Boiler water supply
nozzle
6. Heat exchanger
7. Boiler water outlet
nozzle
8. Branch pipe for
recirculated water heater
back flow
9. Nozzle for mounting of
the sensor's immersion
sleeve of system
connection of hot water
boiler
10. Aluminum anode plug
11. Control panel
12. Drain valve
13. Drainage
14. Energy source
* Shut off when using the
water heater
Fig . 1.
The heat exchanger is connected ( Fig. 1, par. 6 ) to the heating system (gas, oil or solid fuel boiler).
EWH consists of the nozzle ( Fig. 1, par. 8 ) with 3/4" thread to connect recirculation loop. If EWH is
connected without recirculation loop, 3/4" sealing plug (not included) should be installed on the
nozzle ( 8 ).
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EWH design consists of 1/2" female threaded nozzle for mounting of the sensor's immersion sleeve
of system connection of hot water boiler ( 1/2" ). When EWH is connected without the sensor, 1/2" plug
must be installed on the nozzle (included) ( 9 ). EWH, providing the connection tightness by using any
sealant (flax, FUM tape, etc.).
In order to avoid causing harm to the property of the customer and (or) third parties in case of faulty hot
water supply system, it is necessary to install the EWH in premises that are equipped with
waterproofing floors and drainage to the sewage system, and under no circumstances should you
place non-waterproof items exposed to water under the EWH. When placing the EWH in unprotected
premises, it is necessary to install a protective tray (not included in the EWH supply package) under
the EWH equipped with drainage into the sewage system.
In case EWH is installed in places that are difficult to access with a view to perform technical and
warranty maintenance, the EWH shall be installed and dismantled by the customer independently or
at his/her own expense.
Connection to the water supply system
It is necessary to supply cold water to the EWH using a pre-treatment filter with a
purification degree of at least 200 m.
μ
Install a safety valve on the cold water supply nozzle ( Fig. 1 ). Ensure that the valve drain port is
pointing downwards and that the safety valve is not overtightened and fixed in a correct position.
Connect the cold and hot water, after making sure that there are no foreign objects in supply main
duct. For ease of maintenance, it is recommended to install a shutoff valve on a flow line in front of the
safety valve.
For ease of maintenance and direct water drainage from internal reservoir, it is recommended to
provide a tee with a drain valve on the lower EWH nozzle in front of the safety valve. For complete
water drainage the device is equipped with a removable flange in the bottom of EWH, access to which
can be provided after draining through the nozzle and by tilting EWH on one side.
When the water heater is operating, water can leak from the relief valve outlet pipe to relieve
excessive pressure, which occurs for the purpose of ensuring the water heater safety. The discharge
pipe shall remain open to the atmosphere and be directed downward constantly. It is advisable to
attach a rubber or silicone tube of the appropriate diameter to the drainage hole with a view to drain
water. It is necessary to drain a small amount of water regularly (at least once a month) through the
relief valve discharge pipe into the sewage system to remove calcareous sediments and to check
valve efficiency.
CAUTION! It shall be forbidden to use the EWH without a relief valve or use a valve
made by other manufacturers.
The connection to the plumbing system shall be made using copper/plastic pipes or special flexible
plumbing designed for a temperature of at least 100°C at the maximum operation pressure. It shall be
forbidden to use flexible connectors used in the past. Plumbing and locking accessories shall be in
line with the parameters of the water supply network and have the necessary quality certificates.
During installation, do not use excessive force to avoid damage to the pipe threads.
When connecting the EWH in places not equipped with running water, it is acceptable to supply water
to the EWH from the auxiliary reservoir using a pump station, or from a reservoir placed at a height of
not less than 5 meters from the top of the EWH.
EN EN
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