Ecotermal Deluxe BH 207 User manual

1
INSTRUCTION MANUAL
FOR MAINTENANCE AND OPERATION
OF ELECTRIC CONTINUOUS FLOW HEATER/MODULE
DOSSIER
ELECTRIC CONTINUOUS FLOW HEATER/MODULE
“Deluxe BH”207, 209, 312, 315, 318, 321, 324
“Deluxe Module BK”336, 350
“Deluxe Combi BH” 209 E, 212 E, 312 E, 315 E, 318 E, 321 E, 324 E
Burgas 8000, 47 Slivnitsa Street; Ph.: 056/ 81 46 81, 056/ 81 42 15
E –mail: [e-mail]
www.ecotermal.com

2
Dear Customers, ECOTERMAL LTD Co. would like to thank you for your good choice! Please read
this Instruction Manual carefully to enjoy utmost satisfaction through the advantages of the electric
heaters and modules, which can provide comfortable, environmentally –friendly and economic heating
solution due to their quality and reliable modern automated devices.
TABLE OF CONTENTS: Page
1. Recommendations …………………………………………………………………………………….…3
2. Introduction……..………………………………………………………………………………………. 3
3. Heater/Module technical description ……………………………………………………………….4 -9
Heater diagram, heating system only……. ……………………………………………………. 4
Heater diagram, heating system and domestic hot water system.............................................4
Electric diagram, single phase model…….…………………………..........................................5
Electric diagram, three phase model…...……………………………………………………….6
Control system , heater for a heating system only ……………………………………….…..7
Control system , heater for a heating system and a domestic hot water system..……………7
Technical parameters…………………………………………………………………….........8-9
4. Installation manual……………………………………………………………………………................9
5. Connection to the power system…………..………..………………………………………………10-12
6. Connection to the heating system……………………………………....………………………………12
7. Heater display and adjustments…………………………....…..………………………………… 13-15
User settings…………………………………………………………………………………… 15
Service adjustments…………………………..…………………………………………...........16
Error codes………………………………..…………………………………………………….19
8. Accessories……………………………………………..………………………………………………..18
9. Operating instructions…………………………………..…………………………………………….. 20
10. Commissioning……………………………………..……………...…………………………………... 20
11. Conditions precedent for startup and guarantee maintenance………………………….…………. 20
12. Product warranty data …………………………………....................................………………………20

3
1. RECOMMENDATIONS:
This electric heater shall not be operated by physically disabled and mentally infirm individuals and/or
individuals without the necessary qualification and/or experience (unless they are given special training).
-Never permit CHILDREN to interfere with the heater operation.
-Be sure to understand well and observe the instructions for heater safe operation and installation.
- After removal of the package, be sure to check the integrity of the heater and availability of all accessories.
- Protection class of this electrical heater is IP X4, valid after installation at the operating site.
-Make sure that the heater type is appropriate for your intended application.
-It is advisable to have a project developed for every specific installation.
-Installation shall only be made by qualified authorized personnel.
-Heater installation shall be in conformity with the currently valid regulations, standards and this instruction
manual.
-Heater connection to the power mains shall be approved (if required) by the local power distribution operator;
the user shall make the necessary arrangements prior to heater purchase.
-Heater adjustment and commissioning shall only be made by the vendor’s approved service engineer.
-Incorrect installation can result in damages and the vendor shall not be liable for such damages.
-In case of failure, contact the authorized service. Non-professional intervention can result in heater damages.
-Preventive maintenance shall be provided at least once a year to ensure proper performance, safety and long
service life for the heater.
-Vendor shall not be liable for any damage attributable to non-professional installation and/or disregard to the
recommendations and/or the operating instructions; no maintenance services will be due in that case.
-Heating systems shall be provided with vent valves in dedicated points, as required.
- No modifications are allowed to be made on the electric diagram of this device, except for connection of a
room temperature controller.
- Hydraulic and thermal testing shall be performed on every heating system upon commissioning.
-This electric heater can be operated at 80С max at operating pressure of 1, 8 bar in a separate heating loop.
- The installer company shall provide information to the customer on the rules of operation of the heating
system in general.
2. INTRODUCTION
This continuous flow electric heater is a modern, environmentally friendly heat source, intended for floor and
central heating application for small and medium size residential and business buildings. The basic advantages
of electric heating are primarily these: highlyefficient, environmentally friendly performance, compact design
and power saving features. This electric heater can be used for any heating system of the central or single floor
(local) types, in a direct, accumulating or hybrid diagram. It can also be integrated in existing heating systems,
in parallel with a heater running on solid fuel. Electric heaters shall be installed in systems provided with
pumps to ensure forced circulation of the heating fluid.

4
3. TECHNICAL DESCRIPTION OF THE HEATER/MODULE
For heating application only
Heating and domestic hot water

5
Electric diagram, a single-phase option

6
Electric diagram, a three-phase option

7
Control diagram, heating application only
Control diagram, heating system and domestic hot water application

8
Technical parameters
Technical parameters
Model
Deluxe
BH207
Deluxe
BH209
Deluxe
BH212
Deluxe
BH215
Deluxe
BH312
Deluxe
BH315
Deluxe
BH318
Deluxe
BH321
Deluxe
BH324
Deluxe
Combi
BH207E
Deluxe
Combi
BH209E
Deluxe
Combi
BH212E
Deluxe
Combi
BH215E
Deluxe
Combi
BH312E
Deluxe
Combi
BH315E
Deluxe
Combi
BE318E
Deluxe
Combi
BH321E
Deluxe
Combi
BH324E
Voltage
240V
400V
Frequency
50Hz
50Hz
Phases
1
3
Power rating
kW
7
9
12
15
12
15
18
21
24
Current A
27
40.9
54.5
68.2
18.2
22.7
27.3
31.8
36.4
Cable
mm2
4
6
10
10
3*2.5
3*2.5
3*4
3*6
3*6
Application
For heating and domestic hot water
Circuit breaker A
32
63
80
20
25
32
40
Operating
temperature range
30°C~80°C (radiator mode)
30°C~60°C (floor heating)
Max water
temperature
85°C
Temperature setting range
5~20°C
Minimum temperature level for
freeze protection
<8°C
Temperature for deactivation of
the freeze protection function
≥10°C
Pump output voltage
240Vac, 0.5A
Expansion drum capacity
6 liters
Inlet and outlet connections
G1/2”
Recycle water inlet connection
G3/4”
Product dimensions
Deluxe BH- 620mm*350mm*200mm/Deluxe Combi BH-E -710mm*425mm*245mm
Model
Deluxe Module BK336
Deluxe Module BK350
400V
Voltage
50Hz
Frequency
3
Power rating kw
36
50
Current A
55
76
Cable mm2
16
16
Application
Heating
Circuit breaker A
80
80

9
4. Installation instructions
Step 1：Use an impact perforator to drill 5 holes; the 3 upper holes with diameter Φ8, distance between holes
shall be 60mm; the 2 lower with diameter Φ6, distance between holes shall be 60mm, as shown in the Figure
Step 2: Drill and install 3 dowel pins , diameter Φ8 and 2 dowel pins, diameter Φ6, as shown in the Figure
Hole Φ8
Hole Φ6
Operating temperature
range
30°C~80°C (in radiator mode)
30°C~60°C (in floor heating mode)
Max water temperature
85°C
Temperature setting range
5~20°C
Minimum temperature level
for freeze protection
<8°C
Temperature for
deactivation of the freeze
protection function
》10C
Pump output voltage
240Vac, 0.5A
Inlet and outlet connections
G1/2”
Recycle water inlet
connection
G3/4”
Product dimensions
575mm*435mm*195mm

10
Step 3：Tighten 3 screws in the 3 upper dowel pins, as shown in the Figure
Step 4: Mount the heater on 3 fixed screws. Tighten 2 screws in the lower dowel pins
5. Electrical connections
1. All electrical works shall be in conformity with the currently valid national and local electrical standards.
2. The heater shall be properly grounded via a dedicated grounding loop with a suitable voltage design.
3. Ensure that the ends of metal wires to the terminal strips/circuit breakers make full contact when laying the
cable to the terminal strips/circuit breakers. Then tighten the screws to ensure maximum current voltage.
4. Before commencement of electrical works, ensure that the switch of the main power board circuit breaker
is in the OFF position, to avoid any hazards due to electric shock; all installation and plumbing works shall be
performed prior to electrical connections.
5. Ensure a circuit breaker and a hole on the heater side for wiring.
5.1 Untighten the screws and then remove the hole cover.

11
5.2 According to the cable size, open the relevant hole numbers in the cover. Cables can also be
installed through a major common hole.
5.3 Connect the L, N, E cables as per the instructions shown on the sticker.
Single phase models Three phase models

12
5.4 Insert the cable through the hole in the cover
5.5 Fix the cover onto the hole and tighten the screws.
6. Connection to the heating system
Make the water supply, recycle and automatic addition connections of the heater.

13
7. Heater display and adjustments
Icons and indicators
No.
Icons
Details
1
Displays the 7 week days
2
There are 9 time phases. You can set operating conditions for 9 phases in a 24-hour period.
3
Displays actual time (hour and minutes)
4
This icon will go on to indicate that the heater is in heating mode.
5
This icon will go on to indicate that the heater maintains insulation conditions. Heater operation
when heating elements are off, because the setting was achieved.
6
Displays temperature difference between “heating fluid outlet temperature ” and “heating fluid inlet
temperature”
7
This icon will go on to indicate that the pump is running.
8
This icon will go on to indicate that the heater is running with antifreeze protection function enabled.
This mode is enabled when temperature falls below 8°С.
9
This icon will go on to indicate that the heater is connected to an external controller (room
temperature controller) in standby mode.
10
This icon will go on to indicate that the heater is running in heating mode with radiators. We can
select the floor-heating mode, where the icon would not go on.

14
Name
Operating state
Sensor type
Function
No set point
Touch and hold
down
Touch and hold down for 2 sec. to turn ON/OFF.
Set point exists
Touch once
Return to the previous menu.
Power on state, no set point
Touch and hold
down
Touch and hold down for 3 sec to enter setting state
Power off state
Touch and hold
down
Touch and hold down for 5 sec to enter setting state
for time calibration
Adjustments menu state
Touch once
Scroll between different menus
Time setting state
Touch once
Setting of data for time parameters
Time calibration setting state
Touch once
Setting of data for time calibration parameters
Setting of energy efficiency
parameters state
Touch once
Scroll and define each energy efficiency parameter
Actual time setting state
Touch once
With every touch ,parameters will increase by 1 step
Touch and hold
down
The relevant parameters will keep increasing.
Power on for no setting state
and operating state with time
setting
Touch once
With every touch, the temperature setting will
increase by 1 step.
Touch and hold
down
The temperature set point of the heating system will
keep increasing.
Time setting state
Touch once
Select the required time interval, the parameter will
increase by 1 step.
Touch and hold
down
Select the required time interval, the parameter will
keep increasing.
System parameters setting or
mode setting
Touch once
With every touch, the parameters will increase by 1
step.
Touch and hold
down
The parameter will keep increasing.
Real time setting state
Touch once
With every touch, the parameters will decrease by 1
step.
Touch and hold
down
The relevant parameter will keep on decreasing.
Power on, no setting state or
time based operation
Touch once
With every touch, the temperature setting of the
heating system will decrease by 1 degree.
Touch and hold
down
The temperature set point of the heating system will
keep decreasing.
Time setting state
Touch once
Select the required time setting period, the parameter
will decrease by 1 step.
Touch and hold
down
Select the required time setting interval, the parameter
will keep decreasing.
Setting a system parameter or
mode setting state
Touch once
With every touch, the parameters will decrease by 1
step.
Touch and hold
down
The parameter will keep on decreasing.
Energy
efficiency
keys
Power off state
Touch and hold
down
Touch and hold down for 3 sec to enter EEF
parameters setting.
Power on state - no setting
Touch and hold
down
Touch and hold down for 3 sec to switch over to time
phase.
Power on state - no setting
Touch once
Enter temperature difference setting –delta T

15
Heater adjustments
User adjustments
ON/OFF Operation
In the OFF state, no settings made, touch and hold down for 2 seconds to turn the heater ON, touch
and hold for 2 seconds again to switch the heater OFF.
Temperature adjustments
Press and hold for 2 seconds to turn the heater ON. If the hear has no time setting, the pump will start
running and internal test will be enabled, the pump will be running for 1 minute and then the heater will start
heating operation.
If the heater has not time setting, press or to set the heating fluid temperature in a range of 30 deg.C
to 80 deg.C (for radiator mode); you can set the heating fluid temperature in a range of 30 to 60 deg.C (for
floor heating mode).
Press and hold down for 2 seconds to switch the heater OFF.
Timer adjustments (day, time and minutes)
In the OFF state, touch and hold for 5 sec ” ” adjustments function key , press” ” function key for
scrolling between positions; press ” ” or “” for adjustment selection.
Upon completion of adjustments, press key to exit the Setting State. If no key action has been taken for
10 seconds, the system will exit and save automatically the parameter settings.
Time setting. Daily and weekly programming
You can set the heater for a 24-hour operating mode for 7 days a week, as well as the heating fluid
temperature and time settings. A detailed description of the various settings is given herein below.
Time phase setting: In the operating mode, press and hold down for 5 seconds” ”; the setting mode
switches to setting of time phase.
starts blinking; you can set 9 time phases for 24 hours. After you have confirmed the time
phases, 1, 2, 3,….9 stop pressing any keys, the time phase is confirmed.
After selection of a phase, the latter shall be enabled via the key and the symbol will change from
“OFF” to “ON” and vice versa. Then confirm using and enter the weekly settings. There are 10 different
options to select. All adjustments are selected using the and keys. After selection of an option, for
example “1-7”, using go to selection of time for the start of “phase” (time interval), for example - 6.00;
after confirmation via , select the time for switch off operation. Upon confirmation of the switch off time
using , we can adjust the operating temperature for this phase. After confirmation using , we can
adjust the temperature difference within 10 seconds from the latest adjustment; the exit setting is enabled
automatically, or you can press for exit from Settings.

16
Setting the operating parameters
Setting of operating parameters shall be made in the operating mode. Press and hold for 3 seconds, the
system will go to enable weekly operation. (Phase 1-9). To disable the program settings, press again
and hold for 3 seconds.
Setting the temperature difference: Temperature difference exists between outlet hot water
and recycle water; if recycle water temperature is much lower compared to outlet hot water temperature, the
heater must start; if recycle water temperature is almost equivalent to outlet hot water temperature, the
heater need not start. In this situation, we must set a specific temperature difference ranging from 5 deg.C to
20 deg.C; if the temperature difference exceeds the setting, then the heater will start automatically; if the
temperature difference is equal to or lower than the setting, the heater will shut down automatically.
Press once, will go on blinking; then press or to enter the value for the temperature
difference. Setting range shall be 5 deg.C-20 deg.C.
Service adjustments
 Connection of room temperature controller: the heater can be connected to an auxiliary
wired controller. You can select parameter setting at the panel or at the controller. While in the OFF mode,
press and hold for 3 seconds , until “00“ lights, then using the and keys, go to “bE“ using
the key for the left position, and key for the right position. Figures 1 to 9 will be displayed first,
then – letters. After selection of “bE“, confirm using the key. Submenus will be displayed using the
key; go to the “TC“submenu, the icon will be displayed then; after that make adjustments using
the and keys. Display 00 means that no wired controller is connected. Display 01 means that there
is a wired controller.
Heating mode setting: radiator or floor water heating mode
Two heating modes are available – floor heating mode and radiator mode. Enter a different heating mode for
the heater; factory settings for temperature range of water are different.
In the OFF mode, press and hold for 3 seconds until “00“goes ON, then using the and
keys go to “be “using the key for left position, and the key for right position. Figures 1 to 9 will
be displayed first, then – letters. After selection of “bE“ , confirm using the key Submenus will be
displayed using the key; go to submenu “dП“ to display the icon, then make adjustments using
the and keys. Display 01 means floor water heating; display 00 means radiators. When the heater
is in the radiator mode, the icon in ON, and OFF for floor heating mode.
Selection of heating mode and supply of domestic hot water
In the OFF mode, press and hold for 3 seconds until “00“lights, then using the and keys go
to “0А“, using the key for the right position. Figures 1 to 9 will be displayed first, then – letters. After
selection of “0А”, confirm using the key. Submenus will be displayed using the key; go to

17
submenu “CH“, to display the icon, then make adjustments using the and keys.
Display 00 means heating, display 01 means domestic hot water, display 02
means heating plus domestic hot water. When the heater is in the operating mode, the icon
of the relevant mode selection will be ON. Upon completion of adjustments, press to save the settings.
In the automatic switch over mode, if water flow rate is ≥1.8 l/min, the heater will switch modes to supply
domestic hot water; if water flow rate is ≤1.3 l/min, the heater will stop supply of domestic hot water. When
hot water supply mode is switched on, heating system mode is switched off.
In the heating system mode, if the user opens a consumer of domestic hot water, heating system will go OFF
and the system will switch over to mode supply of domestic hot water. As soon as the consumer is isolated,
the heater will automatically switch over to heating system mode.
Pump operating modes: Pump operating modes can be adjusted.
In the OFF mode, press and hold for 3 seconds until “00” is ON, then using the and keys, go
to”bE”, using the key for left position, and the key for the right position. Figures 1 to 9 will be
displayed first, then – letters. After selection of “bE“, confirm using the key. Submenus will be
displayed using the key; go to submenu “SB“ to display the pump icon, then make adjustments using
the and keys. Display 00 means that the controller automatically controls the pump, display 01
means that the pump is in continuous operation while the heater is running.
Flow meter disabled: Flow rate sensor performance can be adjusted.
In the OFF mode, press and hold for 3 seconds until “00“ is ON, then using the and keys,
go to “bE“, using the key for left position and the key for right position. Figures 1 to 9 will be
displayed first, then – letters. After selection of “bE“, confirm using the key. Submenus will be
displayed using the key; go to submenu “SL“, then make adjustments using the and keys.
Display 00 means that the flow rate sensor is enabled; display 01 means that flow rate sensor is disabled.
 Setting limits for heater output
In the OFF mode, press and hold for 3 seconds until “00” is ON, then using the and keys, go
to “0А”, using the key for right position. Figures 1 to 9 will be displayed first, then – letters. After
selection of “0А“, then make adjustments using the and keys. Display “P1” means 1/3 of the
maximum output; display “Р2”means 2/3 of the maximum output; display “Р3” means maximum output.
When the heater is running, the icon light will correspond proportionally to the mode selection. Upon
completion of adjustments, press to save the settings.

18
8. Accessories for different models
MODEL
ACCESSORIES
Deluxe
BH***
Deluxe
Module
BK***
Deluxe
Combi
BH***E
Expansion drum
√
−
√
Circulation pump
√
−
√
Filter
√
−
√
Safety relief valve
√
√
√
Low pressure protection
√
√
√
Emergency shutdown
thermostat
√
√
√
Vent valve
√
√
√
Domestic hot water
−
−
√
Mounting brackets
√
√
√

19
Error codes
Error code
Cause analysis
Solution
E0
A, No water in the system or pressure too low
B, closed contact of water pressure sensor
A, Feed water to the heater; pressure range 0.5-3bar
B, If water pressure is over 0.5bar, ensure that the water
pressure sensor is with contacts closed
E1
A, Open circuit of temperature sensor for supply of
heating fluid; short circuit current
B, NTC˂-20 failure
A, Replace the temperature sensor for supply of heating
fluid.
B, It will recover automatically.
C, Contact an authorized service dealer or Seller
E3
Heating fluid temperature ˃85C
This condition will exist for 60 seconds and will
recover automatically.
E4
Thermal breaker switch failure
A, Wait until the surface of the heating elements cools
down to 85 deg.C, it will then reset automatically.
B, Contact an authorized service dealer or Seller
E5
A, Flow meter failure
B, Piping or pump failure
С, Filter plugging
A, Replace the flow meter
B, Inspect the piping and the pump and solve the
problem
C, Contact an authorized service dealer or Seller
E6 (Available only for
domestic hot water mode )
A, Loose connection between temperature sensor and
PCB.
B, Failure of temperature sensor for domestic hot water
A, Tighten the connection between temperature sensor
and PCB.
B, Replace the temperature sensor (Contact the local
service provider)
E7
( Available only for
domestic hot water mode )
Outlet temperature ≥73ºC for domestic hot water
mode
Reduce the temperature setting, increase water flow
rate
Leakage of connection at
water inlet/outlet/heating
fluid
A，Loose connection
B，Damaged sealing ring of connection
A, Reconnect.
B, Replace the sealing ring.
No indication on the control
panel
A, Power failure
B, Loose connection of the control PCB to the power
supply PCB.
C, Display PCB failure
A, Connect the cable and restore power supply.
B, Reconnect the tape cable between the display PCB
and the control PCB.
C, Replace the display PCB.
D, Contact an authorized service dealer or Seller
Key pressing failure
Failure of key being pressed or display PCB
Replace the key or the display PCB.
Heating system temperature
too low
A, Heating element failure
B, Thermal protection enabled
C, Blown fuse
D, Control PCB failure
A, Replace the heating element.
B, Reset the thermal protection device.
C, Replace the fuse.
D, Contact an authorized service dealer or Seller
Frequent lack of water
Heating system piping not properly sealed, existing
leakage from the system, which causes insufficient flow
of heating fluid or pressure loss.
Inspect for heating system leakage; ensure sealing.

20
9. OPERATING INSTRUCTIONS
-The user of the electric heater shall provide water supply and power supply for the system.
-The user shall make sure that sealing is proper and control the system operating pressure.
-Make adjustments for heater or room temperature depending on the system function mode and user’s
individual preferences.
-In case of deviation from the parameter settings, the user shall inform the authorized service dealer.
-Maintenance shall be performed by authorized personnel experienced in control and operation of this
device.
-In case of power failure and after power supply is restored, the electric heater will restart automatically.
10. COMMISSIONING
-This heater shall be started only upon completion of inspection and acceptance of all connections to the
heating system, all electrical connections and the external line.
- Ensure that the heating system valves are open; check system pressure, as well. Enable the automatic fuse
of the electric heater and enter the correct settings. Heating systems can be filled only with water or water
containing antifreeze agent.
11. CONDITIONS PRECEDENT FOR COMMISSIOING AND GUARANTEE SERVICE –
GENERAL REQUIREMENTS:
This electric heater/module is intended for installation using wall mount brackets, only for walls that
can support its weight. Select the location for this electric heater/module to ensure easy access –
distances as per the process requirements on all four sides.
1. This heater/module shall be installed in a location that can ensure convenient conditions for
maintenance (easy access to the device) and possibility to open the front cover.
2. This heater/module shall be wall mounted at a minimum height of 1 m from the floor.
3. Install a filter upstream the pump (filter is a heater accessory) as per the manufacturer’s instruction
manual, attached.
1. Prevent contact of the heater with building materials.
2. Install screw connectors at the heater inlet and outlet.
3. Perform a hydraulic test of the system with a factor of 1.25 over the operating pressure.
4. Be sure to check the heater settings during commissioning. Actual control is performed during hot
testing.
5. The guarantee becomes effective as from the date of commissioning, however not later than six
months from the purchase date.
12. PRODUCT WARRANTY DATA:
Product Type___________________________________________________________________________
Serial № ______________ date of manufacturing _____________________________________________
Note: The Manufacturer reserves the right on structural modifications of this device.
Date: 20.01.2021