WITA HE OEM 2 40 Series Installation And Operating Instructions Manual

WITA HE OEM 2 40 Series Installation And Operating Instructions Manual

Wita HE OEM 2 40 Series is a high-efficiency circulation pump designed for hot water circulation in central heating systems. It's energy-efficient, reducing consumption by up to 80% compared to conventional pumps, with adaptive capacity for optimal system performance. It's suitable for solar installations and comes with features like automatic night reduction for energy savings.

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WITA HE OEM 2 40 Series Installation & Operating Instructions | Manualzz
HE OEM 2 | 40-XX | 60-XX
INSTALLATION AND
OPERATING INSTRUCTIONS
Manual
HE OEM 2 | 40-XX | 60-XX
Contents
1
Declaration of conformity .......................................................................................................... 3
2
Notes on safety ............................................................................................................................ 4
2.1 General .......................................................................................................................................................... 4
2.2 Identification of symbols in the operating instructions.....................................................................4
2.3 Personnel qualification ............................................................................................................................ 5
2.4 Danger of not observing savety instructions .................................................................................... 6
2.5 Safety-conscious work ............................................................................................................................. 6
2.6 Safety instructions for the operator ..................................................................................................... 6
2.7 Safety instructions for installation and maintenance work ............................................................ 7
2.8 Unauthorised conversion and production of spare parts ............................................................... 7
2.9 Unpermitted operation ............................................................................................................................. 8
3
Transport and storage ................................................................................................................. 8
4
Intended use ................................................................................................................................. 8
5
Product information ..................................................................................................................... 9
5.1 Technical data HE OEM 2 | 40-XX | 60-XX .......................................................................................... 9
5.2 Delivery range ........................................................................................................................................... 10
6
Pump description
7
Pump settings and capacity ..................................................................................................... 10
.................................................................................................................... 10
7.1 Buttons ...................................................................................................................................................... 10
7.1.1 Service mode, setting the capacity range ..........................................................................................11
7.2 Control panel and LED display ............................................................................................................. 11
7.3 Selection of the operating mode and degree of work .................................................................. 12
7.4 Recommendations for selecting a degree of work ........................................................................ 13
7.5 Automatic night reduction of power................................................................................................... 14
2
8
Filling and venting the installation .......................................................................................... 15
9
Relationship between pump setting and capacity ................................................................ 16
10
Capacity characteristics............................................................................................................. 16
11
Installation .................................................................................................................................. 17
12
Electrical connection ................................................................................................................. 19
13
Maintenance/service ................................................................................................................. 20
14
Malfunctions, causes and elimination ..................................................................................... 20
15
Disposal ....................................................................................................................................... 21
Manual
HE OEM 2 | 40-XX | 60-XX
EU DECLARATION OF CONFORMITY
Subject of the declaration:
Type:Display HE Pumpen
Design:
Heat circulation pump
HE OEM 2
40-xx, 60-xx
We declare with sole responsibility that the products specified above, to which this EC
Declaration of Conformity refers, fulfil the following standards and guidelines:
Electromagnetic Compatibility Directive 2014/30/EU
EN 55014-1 : 2006 + A1 : 2009 + A2 : 2011
EN 55014-2 : 1997 + A1 : 2001 + A2 : 2008
EN 61000-3-2 : 2014
EN 61000-3-3 : 2013
Low Voltage Guideline 2014/35/EU
Guideline for Energy-Consuming Products 2009/125/EG
Eco-design requirements 641/2009 and 622/2012.
EN 16297-1 : 2012
EN 16297-2 : 2012
EN 60335-1 : 2012
EN 60335-2-51 : 2003 + A1 : 2008 + A2 : 2012
RoHS 2011/65/EU
This declaration is submitted for and on behalf of the manufacturer by:
04.05.2021
3
Manual
HE OEM 2 | 40-XX | 60-XX
2 Safety Instructions
2.1 General
These installation and operating instructions are a part of the
product, and contain basic information that must be observed
during installation, operation and maintenance. For this reason,
the installer and specialist personnel or operators must read
these instructions prior to set-up.
Please observe both the general safety instructions listed
under section 2 and the special safety instructions detailed in
the other sections.
A copy of the EC Declaration of Conformity is provided with
these instructions. This declaration shall be deemed void in the
event of a modification that has not been agreed with us.
2.2 Identification of notes in the operating instructions
General hazard symbol
Warning! Danger of personal injury!
Observe the relevant accident
prevention regulations.
Warning! Danger from electrical
voltage! Prevent hazards arising from
electrical energy. Observe
the instructions in local or general
regulations (e.g. IEC, VDE, etc.), and
those of the local energy supplier.
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Manual
HE OEM 2 | 40-XX | 60-XX
Advice
This symbol indicates useful information
for handling the product. It indicates
potential difficulties and aims to ensure
safe operation.
Signs attached directly on the product, such as:
• direction of rotation arrow
• type plate
• identification of connections must be strictly observed and
kept in an easily legible state.
2.3 Personnel qualification
The personnel used for mounting, operation and maintenance
must have relevant qualifications. Areas of responsibility and
monitoring of personnel must be guaranteed by the
owner/operator. If personnel do not have the necessary
know-how, they must be trained or instructed
accordingly. This device can be used by children at or above
the age of 8 years, as well as by persons with reduced physical,
sensory or mental capabilities, or who lack experience and
knowledge, if they are supervised or have been instructed
concerning the safe use of the device and if they understand
the hazards arising from its use. Children may not play with the
device. Cleaning and maintenance operations may not be
carried out by children without supervision.
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HE OEM 2 | 40-XX | 60-XX
2.4 Danger of not observing safety instructions
Not observing the safety information can endanger persons,
the environment and the system. Not observing the safety
instructions shall result in the loss of any and all claims to
warranty.
Potential dangers include:
• Hazards to persons through electrical and mechanical effects.
• Failure of important system functions.
• Hazard to the environment from escaping fluids resulting
from a leak.
• Failure of prescribed repair and maintenance work.
2.5 Safety-conscious working
Observe the safety instructions detailed in this manual, along
with the current national accident prevention regulations.
Should the system operator also have their own internal
regulations, these must also be observed.
2.6 Safety instructions for the operator
• Any existing touch guard protecting moving parts may be
neither removed nor shut down while the system is in
operation.
• In the event of a fluid leak, any fluids must be collected or
diverted in a way that prevents hazards to persons and the
environment from arising.
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Manual
HE OEM 2 | 40-XX | 60-XX
• Prevent hazards arising from electrical energy.
• Observe the instructions in local or general
regulations (e.g. IEC, VDE, etc.), and those of the
local
Displayenergy
HE Pumpensupplier.
• In the event of hazards arising from the system due to
contact with hot or cold parts, these parts must be fitted
with a touch guard.
• Keep flammable substances away from the product.
2.7 Safety instructions for installation and maintenance work
The system operator is responsible for ensuring that all
installation and maintenance work is carried out by qualified
personnel. These persons must also have familiarised
themselves in advance with the product using the operating
instructions. Conducting work on the pump is only permitted
when the system is shut down.
Ensure that the device is securely disconnected from the
power supply. Disconnect the device plug to achieve this.
Prescribed instructions for shutting down the device can be
found in the operating instructions. All protective mechanisms,
such as a touch guard, must be correctly reattached after work.
2.8 Unauthorised conversion and production of spare parts
Modification or conversion of the product is only permitted
after prior consultation with the manufacturer. Only use
original spare parts for repairs. Only use accessories that have
7
Manual
HE OEM 2 | 40-XX | 60-XX
been approved by the manufacturer. The manufacturer shall
bear no liability for any consequences resulting from the use of
other parts.
2.9 Unpermitted operation
If the pump is disconnected from the power supply, wait at
least 1 minute before reactivating. Otherwise, the pump's
inrush current limit has no effect, which can lead to functional
errors or damage to any connected heating controller. The
pump's operational safety can only be ensured
if it is used as intended. Please observe section 4 of
these operating instructions here. Ensure compliance
with the limit values detailed in the technical data.
3 Transport and Storage
After receiving the product, inspect it immediately for damage caused in transport. Should you
detect any transport damage, assert a claim with the haulier.
Incorrect transport and storage can lead to personal injury or damage to the product.
• Protect the product against frost, moisture and damage during transport
and storage.
• Only carry the pump by the pump housing, and never by the connection cable
or terminal box.
• If the packaging weakens due to moisture, this can lead to the pump falling
out and causing severe injury
4 Intended use
These high efficiency pumps are designed to circulate hot water in central heating
systems and are also suitable for pumping low density liquids in industrial and
commercial applications. They are also suitable for solar installations.
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Manual
HE OEM 2 | 40-XX | 60-XX
5 Product information
5.1
Technical data 40-XX | 60-XX
H
(m)
4
Characteristic HE OEM 2 | 40-XX
H
(m)
6
3.5
5
3
CPII
2.5
2
PPII
1
AUTO
CPII
4
CPI
1.5
SIII
SII
PPI
3
CPI
2
PPII
AUTO
SIII
PPI
1
SI
0.5
0
Characteristic HE OEM 2 | 60-XX
SII
SI
0
0
0.5
1
1.5
Maximum elevation height
Maximum flow rate
Power consumption P1 (W)
Supply voltage
Sound pressure level
EEI
Protection type
Temperature class
Ambient temperature
Medium temperature
System pressure
Permitted media
2
2.5 Qm3/h
0.5
1
1.5
2
40-XX
60-XX
4.0 m
2800 l/h
4.5 - 22
1 x 230V 50Hz
<43 dB(A)
≤ 0.20
IP 42
TF 110
0 °C to 40 °C
+5 to110 °C
Max. 10 bar (1MPa)
heating water acc. to VDI 2035
Water/glycol mixture 1:1
6.0 m
3600 l/h
4.5 - 38
Supply pressure
Medium
temperature
< 75 °C
75 °C - 90 °C
90 °C - 110 °C
0
2.5
3
3.5 Qm3/h
Acceptable range of application
Minimum
supply pressure
0.05 bar 0.005 MPa 0.5 m
0.3 bar 0.03 MPa 3.0 m
1.1 bar
0.11 MPa 11.0 m
Temperature range at
maximum
ambient temperature
Permissible
medium
temperature
25 °C
40 °C
5 °C to 110 °C
5 °C to 95 °C
Attention!
The use of unsuitable media can destroy the pump and injure you.
It is necessary to observe the manufacturer’s information and safety data sheets!
Advice
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Manual
HE OEM 2 | 40-XX | 60-XX
5.2
Delivery range
• Original assembly and operating manuals
• Pump
• 2 flat gaskets
• Pump plug
• Insulation
6 Pump descritption
In an average household, 10 to 20% of electricity consumption is used by conventional standard
pumps. Together with the HE OEM 2 pump series, we have developed a circulation pump with
an energy efficiency index ≤ 0.20. By using HE OEM 2, energy consumption can be reduced by
up to approx. 80% compared to a conventional circulation pump. The hydraulic capacity can be
kept almost the same as with the standard pumps. The pump capacity adapts to the actual system demand as it works according to the proportional pressure method.
7 Pump settings and flow capacity
Description of the operating elements
7.1
Buttons
All pump functions can be controlled with just two buttons. The button
switches the night
reduction function on and off. The button
controls the operating modes. The selected operating mode is shown in the clear field of the LED indicator.
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Manual
HE OEM 2 | 40-XX | 60-XX
7.1.1 Service mode, setting the capacity range
The capacity range can be changed to 4m or 6m in service mode.
• The pump must be disconnected from the 230V
mains voltage for at least 15 seconds.
• Connect the pump to the 230V mains voltage.
• Press the
and
buttons simultaneously
within 3 seconds.
• Then release both buttons.
• Select the capacity range with the buton
.
• -4 = 4m
• -6 = 6m
• The pump must be disconnected from the 230V
mains voltage for at least 15 seconds.
• Connect the pump to the 230V mains voltage
The setting process is now complete. The pump is now running in the selected capacity range.
If necessary, the pump setting can be readjusted at any time.
7.2
Control panel and LED display
1
2
3
4
6
1. Display of energy consumption in watts
2. Automatic night reduction display
3. button for activating the automatic night reduction
4. operating mode selection button
5. Display for activated AUTO Smartadapt mode
6. Display of the nine operating levels (characteristics) of
the pump
5
11
Manual
HE OEM 2 | 40-XX | 60-XX
7.3
Selection of the operating mode and degree of work
1. Constant speed adjustment I, II i III
In this operating mode, the pump runs at a constant rotational speed over the entire
characteristic curve.
2. Constant pressure adjustment CP 1, CP 2
In this type of adjustment, the pressure generated by the pump is kept at a constant level.
This type of adjustment is especially suitable for use in underfloor heating systems.
3. Proportional pressure adjustment PP1, PP2
The pump is controlled by the proportional pressure method. In this case, the pressure
generated by the pump is adapted to the changing flow rate. This operating mode is
especially useful when the pump is to be used as a circulation pump for heating.
4. Smartadapt
The Smartadapt AUTO function is designed for two-circuit heating systems and underfloor
heating systems. The pump capacity is automatically adjusted to the actual heat demand of
the installation. The pump power is adjusted gradually and may take more than a week. If the
power supply to the pump is interrupted, the pump remembers the last setting and resumes
adjusting as soon as power is restored.
Upon delivery, the pump is set to the AUTO Smartadapt operating level. Multiple brief pressing
the select button will continuously toggle between the constant speed, constant pressure, proportional pressure and AUTO Smartadapt modes.
The selected operating mode is indicated by the appropriate LED with characteristic symbols.
Number of
button presses
0
Display
AUTO
Description
Symbol Display
AUTO Smartadapt
(sellected on supply)
12
1
PP1
Min. proportional pressure adjustment
+
2
PP2
Average proportional pressure adjustment
+
3
CP1
Min. constant pressure adjustment
+
4
CP2
Average constant pressure adjustment
+
5
I
Constant speed adjustment I
+
6
II
Constant speed adjustment II
+
7
III
Constant speed adjustment III
+
8
AUTO
AUTO Smartadapt
Manual
HE OEM 2 | 40-XX | 60-XX
5. Automatic night reduction display
Display of
means that automatic night reduction is activated.
6. Button for activating automatic night reduction
• By pressing the buton
in section 3, automatic night reduction is switched on or off.
• When the automatic night reduction is activated, the symbol
lights up in the display
field 3.
The "Automatic Night Reduction" function is not available in the constant speed levels.
7. Selection of the degree of work
• Pressing the button
switches between the operating levels.
• The factory configuration of Auto Smartadapt will be re-established by pressing
the button ten times.
7.4 Recommendations for selecting a degree of work
Optimal
setting
Underfloor heating
Other possible
settings
Auto
AUTO
CP1
CP
CP2
Two-line systems
Auto
AUTO
PP2
PP
Single system
PP1
PP
PP2
Factory configuration = AUTO Smartadapt
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Manual
HE OEM 2 | 40-XX | 60-XX
7.5
Automatic night reduction
Conditions for automatic night reduction:
Pumps installed in gas boilers with low water capacity must never be set
to automatic night reduction:
If the heating system does not supply enough heat to the radiators, check whether
the automatic night reduction function is active. If necessary, deactivate the automatic
night reduction function.
To ensure that night reduction functions properly, the following requirements must be met:
1. The pump must be installed on the supply
2. The heating system must be equipped with automatic temperature adjustment on the supply.
How automatic night reduction works
Advice
Press the button
to activate the night reduction function. If the adjacent
highlighted field is lit, the night reduction is activated and the pump automatically switches
between normal operation and night reduction. Swiching depends on the flow temperature.
The pump automatically switches to night temperature reduction if the flow temperature
drops by more than 10°-15°C in 1 hour.
Switching to normal operating mode takes place immediately as soon as the
flow temperature rises again by 3°C.
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Manual
HE OEM 2 | 40-XX | 60-XX
8 Filling and venting the installation
Fill and vent the installation properly. To vent the pump, the electronics
should be set to level III and operated in this position for at least 20 minutes.
Caution After this procedure, you can set the pump to the desired control mode.
Advice
Incomplete venting will cause noise in the pump and system.
Warning! Danger of burns!
Depending on the operating status of the installation,
the entire pump can become very hot.
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Manual
HE OEM 2 | 40-XX | 60-XX
9 Relation between pump setting and capacity
The characteristic curves show the relationship between pump settings and pump capacity.
AUTO
III
II
I
PP1
1
PP2
2
CP2
2
CP1
1
III
S3
II
S2
I
S1
10 Capacity characteristics
H
(m)
4
HE OEM 2 40-XX
H
(m)
6
3.5
5
3
CPII
2.5
2
PPII
1
AUTO
SIII
SII
PPI
3
CPI
2
PPII
AUTO
SIII
PPI
1
SI
0.5
16
CPII
4
CPI
1.5
0
HE OEM 2 60-XX
SII
SI
0
0
0.5
1
1.5
2
2.5 Qm3/h
0
0.5
1
1.5
2
2.5
3
3.5 Qm3/h
Manual
HE OEM 2 | 40-XX | 60-XX
11 Assembly
Correct installation position of the engine
A voltage-free installation must be carried out with the pump motor in a horizontal position
(the direction arrow on the pump body shows the direction of flow). When performing thermal
insulation, make sure that the pump engine and the electronics body are not insulated. If the
installation position is to be changed, the engine case must be rotated as follows.
• Loosen the hexagon socket screws
• Rotate the engine case
• Rescrew and tighten the hexagon socket screws.
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Manual
HE OEM 2 | 40-XX | 60-XX
System dimensions
Dimensional sketch and dimension table
G
Pump
type
40/60 20-130
40/60 25-130
40/60 25-180
40/60 32-180
18
Dimensions
Technical data
H (mm) H1 (mm) L (mm) B (mm)
G (")
138
138
138
142
1"
1 ½"
1 ½"
2"
112
112
112
112
130
130
180
180
93
93
93
93
Weight kg
(without cable)
1,94
2,12
2,27
2,46
Current (A)
0,04~0,25/0,04~0,31
0,04~0,25/0,04~0,31
0,04~0,25/0,04~0.31
0,04~0,25/0,04~0,31
Elevation
height (m)
0~4/0~6
0~4/0~6
0~4/0~6
0~4/0~6
Manual
HE OEM 2 | 40-XX | 60-XX
12 Electrical connection
Connect the power cord to the pump as shown in the picture.
Caution mains voltage! Always observe the necessary safety measures,
VDE regulations and local regulations.
The cross-section of the cable must not be less than 0.75 mm2.
When using cables with fine wires, use end wires sleeves.
1
2
Click
3
4
Caution Danger to life!
Incorrect installation and incorrect electrical connection can be life-threatening.
Electricity hazards must be ruled out.
• Installation and electrical connection may only be performed by qualified personnel
and in accordance with the applicable regulations (e.g. IEC, VDE, etc.)!
• The type of current and voltage must comply with the data on the rating plate.
• Comply with the regulations of the local power supply company!
• Comply with the accident prevention regulations!
• Never pull on the power cord
• Do not bend the cord
• Do not place any objects on the cord
• When the pump is used in systems with temperatures above 90°C, a
connection cable that is suitably resistant to high temperature must be used
• There is a risk of sharp and jaged edges during assembly.
• Never transport by holding the power cord.
• There is a risk of injury from dropping the pump.
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HE OEM 2 | 40-XX | 60-XX
13 Maintenance/service
Before carrying out maintenance, cleaning and repair work, disconnect the system
from the power supply and secure it against being switched on again by
unauthorized persons.
At high water temperatures and system pressures, wait for the pump
to cool down beforehand. There is a risk of burns!
14 Malfunctions, causes and elimination
Maintenance work or repair attempts may only be performed by qualified personnel. Before carrying out maintenance, cleaning and repair work, disconnect the system from the power supply
and secure it against being switched on again by unauthorized persons. At high water temperatures and system pressures, wait for the pump to cool down beforehand. There is a risk of burns!
Malfunction designation Possible cause
or pump error code
Remediation solution
The pump does not work,
the display does not light up
The pump works but
delivers no water
Noise in the system
Check the supply voltage at the pump. If necessary,
switch the circuit breaker back on.
Vent the pump (see chapter 8 in the manual).
Open the gate valve
Vent the system
Check pump settings
Vent the pump (see chapter 8 in the manual).
Increase the pressure on the supply
Check the amount of gas in the expansion vessel
Increase the setpoint (see chapter 7.3 in the manual)
Switch off night reduction
The pump is making noise
The building does not heat
up
No automatic power
adjustment in proportional
pressure levels
20
Power error
Air in the system
The valve is closed
There is air in the system
Pump capacity is too high
Air in the pump
System pressure is too low
Defective expansion vessel
Incorrect pump setting
Night reduction can be
switched on
An open overflow valve installed in the system makes it
impossible to control
Remove or close the overflow valve, if possible.
Manual
HE OEM 2 | 40-XX | 60-XX
Pump errors or codes
displayed
Possible cause
Aid
E1
Rotor block
Disconnect the pump from the power supply and
secure it against being switched on again. If possible, close the overflow valves upstream and
downstream of the pump or drain the water. Hot
water may flow out depending on the operating
status of the system! Danger of burns! Loosen the
engine head by unscrewing the 4 hexagon socket
screws and remove the pump head. It must be possible to turn the pump rotor easily. Remove any dirt
or foreign bodies and reassemble the pump. If the
defect persists, replace the pump.
E2
Electronics malfunctions
Disconnect the pump from the mains for at least
1 minute.
If the defect persists, replace the pump.
E3
Over and under voltage
E4
Electronics malfunction;
short circuit
Disconnect the pump from the mains for at least
1 minute.
If the defect persists, replace the pump.
Replace the pump.
Display HE Pumpen
If the defect cannot be eliminated, contact a specialized dealer.
After 10 seconds without pressing a button, the display turns off.
Pressing one of the two buttons turns it back on.
15 Disposal
Advice
The pump and its individual parts must not be disposed of with the municipal waste, but must
be disposed of in an environmentally friendly manner! To do this, use the services of public or
private waste disposal companies. You can find a list of the materials used in our products in
the download area of our website.
Advices:
• All illustrations in this manual are schematic representations. Please note that purchased
electric pumps and accessories may differ from the illustrations in this manual.
• Product performance is constantly improved and all products (including appearance and color,
etc.) are subject to physical products; no notification will be given in the event of changes.
21
Notes
42
Notes
Display HE Pumpen
43
31
Updated on: 12/2021 · We reserve the right to deviations in dimensions and versions due to
manufacturing reasons. Errors and technical changes reserved.

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Key Features

  • High efficiency
  • Energy saving
  • Adaptive capacity
  • Automatic night reduction
  • Proportional pressure control
  • Constant speed & pressure control
  • Suitable for solar installations
  • Easy to install & operate
  • LED display for clear operation

Frequently Answers and Questions

How does the automatic night reduction function work?
The pump automatically switches to a lower operating level when the flow temperature drops by 10°-15°C in an hour, reducing energy consumption during nighttime.
What are the different operating modes available?
The pump offers several operating modes, including constant speed, constant pressure, proportional pressure, and AUTO Smartadapt. These modes allow for different levels of control based on system needs.
What is the maximum elevation height and flow rate of the pump?
The maximum elevation height is 4m and flow rate is 2800 l/h for the 40 series pump.

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