THERMEx IF 30 V (pro) User manual

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BEFORE THE FIRST USING YOUR ELECTRIC STORAGE WATER
HEATER, CAREFULLY READ THIS OPERATION MANUAL
DEAR CUSTOMER!
Congratulations on your purchase of an electric water heater THERMEX.
Water heaters THERMEX are designed and manufactured in strict accordance
with domestic and international standards guaranteeing operation reliability and safe-
ty.
Present manual applies to THERMEX models of IF/IF (pro). The full name of the
model of your heater is specified in "Manufaturer’s warranty" section (sub-section
"Note of sale") and in the marking plate on the heater casing.
1. APPLICATION
Electric water heater (hereinafter referred to as the EWH) is designed to provide
with hot water for domestic and industrial facilities having a cold water supply line
pressure of not less than 0.05 MPa and not more than 0.7 MPa..
EWH shall be operated indoors in heated spaces and it is not designed for opera-
tion in continuous flow mode.
2. SCOPE OF SUPPLY
Water heater
-
1
pcs
.
Safety valve of GP type
-
1
pcs
.
Operation manual
-
1
pcs
.
Anchors for fastening (option) - 1 set
Packaging - 1 pcs.
3. MAIN TECHNICAL CHARACTERISTICS
EWH power supply shall be within the range of 230 V ± 10%. Supply network
frequency 50 Hz ± 1%. Volume of the inner tank and heating element power are spec-
ified in the marking plate on the casing. Thread diameter in water inlet and outlet
pipes - G1/2 ".
The manufacturer reserves the right to make changes to the design, complete set and
specifications of the heater without prior notice.
Table 1
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Model Range EWH useful
volume, l
Average heating time T =
45° C at 2 kW
Installation
IF 30 V/ IF 30 V (pro) 30 26 0 h 40 min. vertical
IF 50 V/ IF 50 V (pro) 50 43 1 h 07 min. vertical
IF 80 V/ IF 80 V (pro) 80 70 1 h 47 min. vertical
IF 100 V/ IF 100 V (pro)
100 85 2 h 14 min. vertical
IF 30 H/ IF 30 H (pro) 30 26 0 h 40 min. horizontal
IF 50 H/ IF 50 H (pro) 50 43 1 h 07 min. horizontal
IF 80 H/ IF 80 H (pro) 80 70 1 h 47 min. horizontal
IF 100 H/ IF 100 H (pro)
100 85 2 h 14 min. horizontal
4. DESCRIPTION AND PRINCIPLE OF OPERATION
The outside casing of the EWH is made of impact-resistant plastic. The inner tank is
made of high-quality austenitic stainless steel, which provides high corrosion re-
sistance and long operating life. The space between the outside casing and the inner
tank is filled with polyurethane foam - a modern, ecologically clean thermal insula-
tion, which has the best heat-saving characteristics. IF/IF (pro) models have two
screwed nozzles: for inlet of cold water (Figure 1, p. 3) with a blue ring and for outlet
of hot water (Figure 1, p. 2) — with a red ring, and equipped with an additional drain
connection (closed with metal plug button) for draining the water and flushing the
inner tank (Figure 1, p. 17). The control panel, in all models, is on the front side of the
EWH. (Figure 1, p. 16).
Tubular heating element (THE), thermostat and thermal switch sensors are mounted
on the removable flange. THE is used to heat water and thermostat provides with pos-
sibility of heating temperature regulation up to +65°С. All models have electronic
control with sensor adjustment. Electronics maintain automatically water temperature
at the level set by the user. The thermostat is used for protecting against EWH over-
heating, which disconnects THE from power supply when water temperature exceeds
95°С. (Fig. 3).
Safety valve (Fig. 1, p. 5) operates as the check valve, ensuring protection of the water
ingress from the water heater into the sewage system in case of pressure drop in the
sewage system and in case of pressure rise in the tank at high water heating, as well as
the functions of the safety valve, releasing overpressure in the tank at high water heat-
ing. During water heater operation water may leak out of the exhaust outlet pipe of the
safety valve to relieve excessive pressure, which is made for the purpose of water
heater safety. This outlet pipe shall remain open to the atmosphere and be installed
constantly down.
Drainage of water from the safety valve exhaust pipe into the drain shall be pro-
vided with installation of the corresponding EWH drainage.

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It is required regularly (at least once a month) to discharge a small amount of wa-
ter through the exhaust pipe of the safety valve into the drain to remove lime deposits
and to test the operating functionality of the valve. Handle (Fig. 1, p. 15) is intended to
open the valve. It is necessary to control when operating water heater this handle to be
in position closing water draining from the tank.
5. SPECIFYING SECURITY MEASURES
Electrical safety and corrosion protection of EWH are guaranteed only if there is
an effective grounding in accordance with applicable electric installation rules and
regulations.
Plumbing pipes and fittings shall conform to parameters of water main and have
the required certificates of quality.
When installing and operating EWH the following is not allowed:
• To power EWH if EWH is not filled with water.
• To remove the protective cover when the power is on.
• Use EWH without grounding or use water pipes as grounding.
• To connect EWH to water supply with pressure exceeding 0.7 MPa.
• To connect EWH to the water supply without safety valve.
• To drain water from EWH with power switched on.
• To use spare parts not recommended by the manufacturer.
• To use water from the EWH for cooking.
• To use water containing impurities (sand, small stones), which might lead to
EWH and safety valve breakdown.
• To modify design and installation dimensions of EWH brackets.
Ambient temperature shall be within the range of 3ºСto 40ºС. Water in freezing
EWH at negative temperatures results in malfunction, which is not a warranty case.
Attention should be paid to children so that they do not play with EWH.
EWH is not intended for use by persons (including children) with limited
physical, sensory or mental capabilities, or by persons who do not know
how to use the EWH, except for cases when this happens under the
supervision or instructions by persons responsible for safety of the EWH.
During EWH operation, it shall be inspected regularly for proper health (absence
of dripping, burning smell, wiring sparks, etc.). In the case of long interruptions in
water heater operation, water supply failures, EWH shall be disabled and cold water
inlet valve shall be shut off.

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6. ARRANGEMENT AND INSTALLATION
All installation, plumbing and electrical works shall be performed by qualified
personnel.
EWH installation shall be performed in accordance with marking on the housing.
It is recommended to install EWH as close as possible to the place of hot water
using to reduce heat loss in the pipes.
When choosing the place of installation it should be taken into account the total
weight of EWH filled with water. Walls and floor with low carrying capacity should
be strengthened accordingly. When drilling (making) holes in the wall consider cables,
ducts and pipes in the wall.
EWH is suspended by brackets on hook anchors fixed in the wall. Hooks mount-
ing on the wall shall exclude spontaneous movement of EWH brackets along them.
The manufacturer bears no liability for EWH falling associated with improper in-
stallation of anchors and their selection.
For EWH maintenance the distance from the protective cover to the nearest sur-
face in the direction of the removable flange axis shall be at least 30 cm for all mod-
els.
In order to avoid damage of the user’s and/or third parties’ property in
the event of a faulty hot water system, it is required to install EWH in
spaces with waterproofing and drainage to the sewers, and in no case to
place under items exposed to the water under EWH. When placed in un-
protected areas a protective plate (not supplied) with drainage into sew-
ers shall be installed under the EWH.
In case of placing EWH in hard-to-reach places in order to perform maintenance
and warranty service (mezzanine floors, niches, ceiling voids, etc.), installation and
dismantling of EWH is carried out by the user on his own or for his own account.
Note: safety tray is not included into the scope of EWH supply.
7. CONNECTION TO WATER MAINS
Cold water shall be supplied to EWH using pre-filter with water treatment level
not less than 200 µm.
Install pressure relief valve (fig. 1, p.5) at the cold water inlet (fig. 1, p. 3) tube
with the blue ring, by 3.5-4 turnings, ensuring junction tightness with any sealing ma-
terial (flax, FUM tape, etc.).
During EWH operation you can observe water leak out of the outlet pipe of the
safety valve for excessive pressure release to ensure safety of the water heater. It is
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recommended to connect to a drainage hole a rubber or silicone pipe of the relevant
diameter for moisture removal.
Connection to the water supply line shall be carried out in accordance with Fig. 1
using copper, plastic pipes or special flexible sanitary wiring. Do not use any used
flexible wiring. It is recommended to supply water to EWH through filter installed on
the cold water main (not included in the scope of supply).
Do not use used flexible feed pipes. Do not operate the EWH without
safety valve or with valve made by other manufacturers.
Figure 1. EWH connection diagram to water supply
Figure 1: 1 – EWH, 2 – hot water pipe, 3 – cold water pipe, 4 – drain valve
(not in the scope of supply), 5 – safety valve, 6 – drainage (not in the scope of
supply), 7 – feed pipe, 8 – shut off valve when EWH operation, 9 – cold water main,
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10 – hot water main, 11 –cold water shut-off valve, 12 – hot water shut-off valve, 13 –
protective cover, 14 –exhaust pipe of the safety valve, 15 – handle for opening pres-
sure relief valve, 16 – control panel, 17 – discharge pipe.
After connecting EWH make sure that cold water shut-off valve is open and hot
water shut-off valve (8) is closed. Open cold water tap in EWH (11), hot water outlet
valve (12) and hot water tap on mixer to ensure outflow of air from the EWH. When
the final EWH filling, water will continuously flow out of mixer tap. When connecting
EWH in places not provided with water supply it is permitted to supply water in EWH
from auxiliary tank using pumping station, or from reservoir placed at a height of not
less than 5 meters over the top of EWH.
Note: for ease of maintenance during EWH operation it is recommended to install
drain valve (Fig. 1, p.4) in accordance with Fig. 1 (for models not equipped with
drainage pipe. (not in the scope of EWH supply)).
If the water pressure exceeds 0.7 MPa, at EWH cold water inlet, before the safety
valve (in the direction of water flow), the appropriate pressure reducing valve (not
supplied with the EWH) shall be installed to reduce water pressure to standard.
8. CONNECTION TO POWER SUPPLY
Prior to the water heater connection to electrical network, make sure its parame-
ters complies with the technical specifications of the water heater.
ATTENTION! Prior to power activation make sure EWH is filled with water!
Water heater shall be earthed to ensure safe operation. EWH is equipped with the
stationary power cable (option) with Europlug (option). Power outlet shall have an
earth terminal with the connected earthing wire and located in the area protected from
moisture, or comply with the requirements not less than 1РХ4.
Electrical connections diagram

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9. OPERATION
Figure 2. Electronic control board
Figure 2: 1 – LCD display, 2 – button «▲» Temperature control / increasing the
heating temperature, 3 – button «▼» Temperature control / decreasing the heating
temperature, 4 – button «on/off» / switch on/switch off, 5 – button «Heating mode» /
setting the heating power, 6 – indication «No Frost» mode , 7 – indication «Economy»
/ minimum power, 8 – indication «Optimal» / conventional power, 9 – indication
«Turbo» / maximum power.
Switching on/switching off of the EWH is performed by pressing the central but-
ton «on/off» (Figure 2, p. 4), while the display shows the preselected heating tempera-
ture. After 2.5 seconds, the display shows the current water temperature in the EWH.
Selection of the heating power is performed by pressing the button «Heating mode»
(Figure 2, p. 5), on the control panel. Mode 2 kW is accompanied by the indication of
a control lamp «Turbo» (Figure 2, p. 9), 1,3 kW is accompanied by the indication of a
control lamp «Optimal» (Figure 2, p. 8), and 0,7 kW is accompanied by the indication
of a control lamp «Economy» (Figure 2, p. 7). Antifreeze mode is accompanied by the
indication of a control lamp «No Frost» (Figure 2, p.6).
During the operation of the EWH, the user can adjust the temperature of the water
heating using two buttons «▲» «▼» Temperature control (Figure 2, p. 4 and p. 5).
If you do not use the EWH in the winter time and there is a possibility of freezing
of the main waterways and the water heater itself, it is recommended to turn off the
power and drain the water from the EWH in order to avoid damage to the inner tank.
10. TECHNICAL MAINTENANCE
When performing maintenance scale on THE is checked. At the same time residue
that may accumulate in the bottom of the EWH is removed. If there is scale on THE, it
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can be removed by using scale removing means or mechanically. It is recommended
to hold the first technical maintenance after a year from the time of connection by
experts of a specialized organization and depending on intensity of scale and residue
to determine intervals of follow-up maintenance. This action will extend the maxi-
mum EWH service life.
ATTENTION: accumulation of scale on TEH may cause its damage .
Note: Damages to THE due to scale formation are not subject to warranty. Regu-
lar maintenance is not included in the warranty of the manufacturer and the seller.
The following shall be carried out for maintenance:
• Turn off EWH power;
• Cool hot water or discharge it through the mixer;
• Cut off supply of cold water into EWH.;
• Unscrew the relief valve or open drain valve;
• To put on the cold water supply inlet or discharge valve a rubber
hose, sending the other end down the drain;
• Open hot water tap on mixer and drain water from the EWH through
the hose;
• Remove the protective cover, disconnect wires, unscrew and remove
from the casing the removable flange;
• Clean if necessary THEs from scale and remove residue from the
tank;
• Assemble, fill the EWH with water and power on.
In models with drain pipe, it is enough to cut off the flow of cold water into the
EWH, unscrew the drain stub on drain pipe and open hot water tap. Once the water is
discharged, you can open for a while cold water supply in EWH for additional tank
washing.
When conducting EWH maintenance by forces of specialized organization mark
with the seal of organization performing maintenance shall be made in service coupon.
11. POSSIBLE FAULTS AND REMEDIES.
Malfunction Possible cause How to fix
Hot water pressure
from EWH decreased.
Cold water pressure
keeps at the level.
Clogged inlet
safety valve
Remove the valve and
clean it in water
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Heating time
increased
THE is covered
with a layer of sludge
Remove the flange and
clean the THE
Supply voltage decreased Contact power main operation
service
Frequent tripping
of thermal switch
The set tempera-
ture is close to the limit
Set lower value of water
heating temperature
Thermostat tube is cov-
ered with sludge
Take out the EWH the re-
movable flange and gently
clean the tube from scale
EWH operates but is not
heating water
Valve (Fig. 1, p.8)
is not closed or out of
order
Close or replace the valve (Fig. 1,
p. 8)
Powered EWH does not
heat water. No backlights
of indicator lamps.
1) no voltage in electric
network;
2) damaged power cord.
3) Thermal switch ac-
tuated and not switched
on
1) Check voltage at the electrical
outlet;
2) Contact a qualified service cen-
ter.
3) Disconnect from the power
supply, remove EWH protective
cover, press the button on ther-
mal switch until you hear a click
(fig. 2) install the cover and turn
on the power
These faults are not defects of EWH and shall be fixed by the consumer or by a
specialized organization at his own expense.
In case of failure to fix problems using the above recommendations or in case of
others problems revealing you should contact the authorized service center listed in
the operation manual
PRESS
Figure 2. Thermal switch arrangement diagram

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12. TRANSPORTATION AND STORAGE OF ELECTRIC WATER
HEATERS
Transportation and storage of electric water heaters shall be carried out in accord-
ance with manipulation marks on the packaging:
−need to protect the goods from moisture
−fragile, delicate handling
-recommended storage temperature range from +10° to +20° С
−correct vertical position of cargo;
13. DISPOSAL
When complying with the rules of EWH installation, operation and maintenance and
when water quality complying with current standard the manufacturer sets EWH
lifespan of 9 years from the date of purchase.
All parts of the heater are made of materials allowing, where appropriate, environmen-
tally sound disposal which must be made in accordance with the rules and regulations
of the country where the water heater is operated.
When disposing of the EWH comply with local environmental laws and guidelines.
The manufacturer reserves the right to make changes to the design and specifications
of the heater without prior notice.
14. MANUFACTURER'S WARRANTY
The manufacturer sets 2 years as the period of warranty for water heater, and warranty
period for parts and components is specified in warranty card.
The warranty period is calculated from the date of EWH sale. If there is no or correct-
ed date of sale and shop stamp, the warranty period is calculated from the date of
EWH manufacture. Claims within the warranty period are accepted only on presenta-
tion of the warranty card with marks of the seller, and the identification plate on the
casing of the EWH. Release date of a water heater is encoded in a unique serial num-
ber, located on the identification plate on the casing. EWH serial number consists of
thirteen digits. The third and fourth digits of the serial number are year of manufac-
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ture, the fifth and sixth digits - month of release, the seventh and eighth digits - day of
EWH release. Claims within the warranty period are accepted only on presentation of
the guarantee card with marks of the seller, and the identification plate on the casing
of the EWH.
The warranty shall apply to EWH only. Responsibility for compliance with principles
of installation and connection shall be borne by the buyer (in case of connection by his
own) or by the installer carrying out connection.
The manufacturer shall not be liable for defects due to violations of principles of in-
stallation, operation and maintenance of EWH set forth herein, including in cases
where these defects have arisen due to invalid parameters of mains (electricity and
water), where EWH is operated, and due to the intervention of a third party. Manufac-
turer’s warranty does not cover claims for appearance of EWH.
15. INFORMATION ON THE MANUFACTURER
Manufacturer:
THERMEX heating Technology (Jiangmen) CO., Ltd
No. 51, Jianshedonglu , Taoyuan town, Heshan City, Guangdong Province, China
ZIP: 529725
All models have been certified and comply with requirements of European Directives
2006/95/EC, 2004/108/EC. .
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