Shinhoo LPA Series User manual

Energy-saving Pipeline Canned
Motor Pump
Installation and Operating
Instructions
Hefei Xinhu Canned Motor Pump Co., Ltd
Series
LPA

Precautions for use of LPA Series products
01. The installation manual should be 08. Pump with copper or stainless
read carefully before installation steel body should be adopted to
and use. t h e d o m e s t i c h o t w a t e r
circulation.
02. Any failure to comply with the
content marked by safety 09. The heat feed pipeline should
warning marks may cause not be supplemented with non-
personal injury, pump damage softened water frequently to
and other property loss, for avoid an increase in the calcium
which, the manufacturer shall not in the circulating water of
assume any responsibility and pipeline so as not to clog
compensation. impellers.
03. Installer, operator and user must 10. It is prohibited to start the pump
comply with the local safety when there is no pumping liquid.
regulations. 11. Some models can not be used for
04. The user must confirm that diet water.
installation and maintenance of 12. Pumping liquid may be of high
t h e p r o d u c t s h o u l d b e temperature and pressure,
conducted by staff proficient in therefore, liquid in the system
the instructions and having should be drained off or stop
pr o f e s s i o n a l q u a l i f i c a t i o n valves on both sides of the pump
certificates.must be switched off to avoid
05. Pumps must not be installed in burns befo re mov ing and
damp environment or places that removing pump.
may be splashed by water.13. Liquid of high temperature and
06. In order to facilitate maintenance, pressure will flow out if exhaust
one stop valve should be bolts are removed; care must be
installed on each side of the taken to ensure that the liquid
p u m p i n l e t a n d o u t l e t flowing out will not cause
respectively. personal injury or damage to
other parts.
07. The power supply of pump
sho uld b e cut off dur ing
installation and maintenance.
LPA Series

14. In the summer or when the dealer or service center.
ambient temperature is high, 19. If the pump failure can not be
attention should be paid to cleared in accordance with the
ventilation so as to prevent description in the instructions,
moisture condensation and immediately turn off the valve on
cause electrical fault.the pump inlet end and cut off
15. In the winter, if the pump system the pump power, besides,
does not operate or when the immediately contact your local
ambient temperature is below dealer or service center.
0℃ ,liquid in the pipeline system 20. The product should be placed
should be emptied to avoid out of the reach of children, after
causing frost crack to the pump installation, isolation measures
body. should be taken to prevent
16. If the pump does not use for a children from touching.
long time, please turn off the 21. The product should be placed in
conduit valves on pump inlet and a dry, ventilated and cool place
outlet ends and cut off the power and stored at room temperature.
of pump.
22. This appliance can be used by
17. If he flexible cord is damaged, children aged from 8 years and
please connect service center to above and persons with reduced
have it replaced together with physical, sensory or mental
the connector.capabilities or lack of experience
18. If it is found that the motor is and knowledge if they have been
burning hot and abnormal, given supervision or instruction
immediately turn off the valve on concerning use of the appliance
the pump inlet end and cut off in a safe way and understand the
the pump power, besides, hazards involved. Children shall
immediately contact your local not play with the appliance.
LPA Series

Warning
Before starting installation, the Installation and Operating
Instructions of device must be read carefully. Installation and
use of the device must comply with local regulations and
follow good operation specification.
Warning
Personnel with physical decline, dysesthesia or poor mental
ability and lacking of experience and relevant knowledge
(including children) should use the pump under the
supervision and guidance of people who can take charge of
their safety.
1. Symbol description
Warning:Failure to comply with this security declaration will
likely result in personal injury!
Failure to comply with this security declaration will likely
cause failure or damage to the equipment!
Notes or instructions facilitating the work and ensuring
operational safety.
Caution
Note
01
LPA Series

2. Overview
2.1 LPA series circulating
pump is mainly used
for the water circulation
in home heating and
domestic hot water
system.
LPA series circulating pump is
most suitable for the following
system:
· Stable heating system with
variable flow
· Heating system with variable
pipeline temperature
· Heating system with night
mode
· Air-conditioning system
· Industrial circulation system
· Home heating and domestic
water supply system
LPA series circulating pump is
equipped with a permanent
magnet motor and differential
pressure controller which can
adj ust t he pe rfo rm anc e of
electric pump automatically and
continuously to meet the actual
needs of the system.
LPA series circulating pump is
equipped with control panel on the
front, which is convenient for the
operation of users.
2 . 2 A d v a n t a g e s o f
installation of LPA
se rie s ci rcu la ti ng
pump.Easy installation
and start-up
· LPA series circulating pump has
autoadaptation mode AUTO (factory
settings). In most cases, you can
start the pump without need to
make any adjustments and
automatically adjust it to meet the
actual needs of the system.
High comfort
· The running noise of pump and
the whole system is low.
Low energy consumption
· Compared with the conventional
circulating pump, its energy
consumption is very low. The
minimum energy consumption of
LPA series circulating pump can
reach 5W.
02
LPA Series

Liquid temperature
<85℃ 90℃ 110℃
Inlet pressure
0.05bar 0.28bar 1bar
Head of delivery
of 0.5m
Head of delivery
of 2.8m
Head of delivery
of 10m
3. Service conditions
3.1 Ambient temperature
he ambient temperature is 0℃～+40℃.T
3.2 Relative humidity of the air (RH)
The maximum humidity is 95%.
3.3 Media (conveying liquid) temperature
emperature of liquid conveying +2℃～110℃.To prevent the control box and stator T
from appearing condensate water, the temperature of pump conveying liquid must be always
higher than the ambient temperature.
3.4 System pressure
The maximum is 1.0 Mpa (10 bar).
3.5 Protection Level
Ip42
3.6 Inlet pressure
To avoid damage to the pump bearing caused by cavitation noise, the following minimum
pressure should be maintained in the pump inlet:
03
LPA Series

3.7 Pumping liquid
Thin, clean, non-corrosive and non-explosive liquid does not contain any
solid particles, fibers or mineral oil; the pump should not be used for conveying
flammable liquid such as vegetable oil and gasoline absolutely. If the circulating
pump is used for the case of high viscosity, the pump performance will reduce,
therefore, when selecting a pump, the viscosity of liquid must be considered.
4.1 Installation
· Install LPA series circulating pump, arrows on the pump housing indicate the direction
of liquid flowing through the pump body.
· When the pump is installed on the pipeline, its inlet and outlet must be installed with two
leather packings provided.
· During installation, the pump shaft must be in the horizontal position.
4. Installation
04
LPA Series

4.2 Position of junction box
4.3 Change to the position of junction box
The junction box can rotate in 90 °. To change the position of junction box, follow the
operating steps below:
1.Switch the valves of inlet and outlet and conduct decompression;
2.Loosen and remove the four socket head cap screws that fix the pump body;
3.Rotate the motor to the desired position and match the four screw holes;
4.Put the four socket head cap screws back and tighten them in the cross direction
order;
5.Open the valve of inlet and outlet.
05
LPA Series

Warning：
Pumping liquid may be of high temperature and pressure, therefore,
liquid in the system should be drained off or valves on both sides of the
pump must be switched off before removing socket head cap screws.
Change the position of junction box, the pump should not be started
until the system has been filled with pumping liquid or valves on both
sides of the pump are open.
Catution
4.4 Thermal insulation of electric pump body
Restrict the thermal losses of electric pump body and pipeline.
Conduct thermal insulation for electric pump body and pipeline so as
to reduce the thermal losses of pump and pipeline.
Isolating or covering junction box and control panel is not allowed.
Caution
Note
06
LPA Series

5. Electrical connection
07
LPA Series

Electrical connection and protection should be carried out in accordance
with local regulations.
Warning
The electric pump must be connected to earth wire.
The pump must be connected with an external power switch; the
minimum gap betweenall the electrodes is 3 mm.
· LPA series circulating pump does not need external
motor protection.
· Check whether the voltage of power supply and
frequency match with the parameters marked by pump
nameplate.
· Use the pump associated plug to connect power supply.
· If the indicator lamp on the control panel lights, it
indicates that the power supply is switched on.
08
LPA Series

6.Control panel
6.1 Components on the control panel
6.2 Fault code display status
After the power is turned on,
position 6 light area displays the status.
During operation, the gear display light
is on constantly.
When the electric pump can not
operate properly, the gear display light
w i l l f l a sh c o n ti n uo u sl y , t he
corresponding faults are as shown
below:
1
2
3
4
5
6
7
No. Explanation
Electric pump automatic gearshift
display (AUTO)
Electric pump gear shifting button
Electric pump proportion gear display
(BLI/BL2)
Electric pump night mode button and
display
Electric pump constant voltage gear
display (HDI/HD2)
Electric pump power display
Electric pump constant speed display
(HS1/HS2/HS3)
If the fault is displayed, the power supply
must be disconnected to facilitate
troubleshooting,
After troubleshooting, switch on the power
supply again and re-start the electric pump.
09
Error Code
Description
E0
E1
E2
E3
E4
Over-voltage protection
Under-voltage protection
Over-current protection
Under-load protection
Missing phase protection
E5 Locked-rotor protection
E6 Motor start failure protection
(Motor paramaters do not match)
LPA Series

6.3 Light area displaying the settings of electric pump
LPA series circulating pump has 9 kinds of settings, which can be
selected by buttons.
The setting of electric pump is indicated by the light lit of 9 locations:
7.Setting of electric pump
7.1 The electric pump should be set according to system
type
Key position Number of
times of key
0
1、2
3、4
5、6、7
Switch on/off
Fixed light area
AUTO
BL1/BL2
HD1/HD2
HS1/HS2/HS3
Night mode
Explanation
Auto adaptation
Proportional
pressure curve
Constant
pressure curve
Constant
speed curve
Night mode
curve
2
4
10
LPA Series

Factory settings=AUTO (autoadaptation mode)
Recommended and available settings of pump
Position System type
A
B
C
Floor heating system
Dual pipeline heating
system
Single pipeline heating
system
Settings of electric pump
AUTO
AUTO
BL1
HD1/HD2
BL1/BL2
BL1/BL2
Optimal settings Or other optional settings
· AUTO (autoadaptation) mode shall adjust the pump performance
automatically according to the actual heat demand of system.Since
performance is adjusted gradually, it is recommended that leave it in the
AUTO (autoadaptation) mode for at least a week before changing the
settings of pump.
·If you choose to change back to AUTO (autoadaptation) mode, LPA series
pump can remember the set points of its previous AUTO mode and
continue to adjust the performance automatically.
·Pump settings change from optimal settings to other optional settings
Heating system is a slow system, it is impossible to achieve optimal
operation mode within several minutes or hours.If the optimal settings of
pump fail to achieve ideal heat distribution for each room, you should
change the pump settings to other settings.
· For the relationship between pump settings and performance curve,
please see Section 10.1.
7.2 The control on electric pump
During the operation of pump, control it according to "proportional
pressure control" (BL) principle or "constant pressure control" (HD)
principle.
In thes e t wo control m ode s, the per for man ce of pump and
corresponding power consumption should
be adjusted according to the heat demand of system.
Constant pressure control
In this control mode, the pressure difference on both ends of the electric
pump remains constant, having nothing to do with flow. In Q/H figure,
constant pressure curve is a level performance curve, represented by
HD1/HD2 (Section 11.3).
11
LPA Series

8.A bypass valve system is fitted between the
inlet pipeline and return pipeline
8.1 Use of bypass valve
Bypass valve
The role of bypass valve is: when all the valves in the floor heating circuit or
the temperature control valve of radiator are closed, it can be ensured that
the heat from the boiler will be assigned.
System components:
·Bypass valve
·Flowmeter, position L.
The minimum flow must be ensured when all valves are closed.
Water pump settings depend on the type of bypass valve it equipped with,
i.e. manually-operated bypass valve or temperature-controlled bypass
valve.
12
Chapter 7
LPA Series

8.2 Manually-operated bypass valve
Follow the following steps:
1 When adjusting the bypass valve, the water pump should be in
setting HS1 (constant speed gear I mode).
The minimum flow of system (Q min) must always be ensured. See the
manual of bypass valve manufacturer.
2、 When the bypass valve has been adjusted, set the water pump
referring to Section 10.1 Pump Setting.
8.3 Automatic bypass valve (temperature control type)
Follow the following steps:
1、 When adjusting the bypass valve, the water pump should be in setting
HS1 (constant speed gear I mode).
The minimum flow of system (Q min) must always be ensured. See the
manual of bypass valve manufacturer.
2、 When the bypass valve has been adjusted, set the water pump to the
constant pressure mode. For the relationship between pump settings and
performance curve, please see Section 10.1. Settings and Performance of
Water Pump.
、
9. Startup
9.1Before startup
Before starting the electric pump, make sure that the system is filled with
liquid, gas has been vented, and the electric pump inlet pressure must
achieve the minimum inlet pressure as required (see Chapter 3).
9.2Gas-exhausting of electric pump
LPA series pump has automatic gas-exhausting function. There is no
need for gas-exhausting before startup. Gas in the electric pump may cause
noise.
The noise will disappear after putting it into operation for a few minutes.
Set the LPA series electric pump to be HS3 mode in a short time according to
the size and structure of system, then gas in the pump will be vented quickly.
After gas-exhausting of pump, that is, after the noise disappears, set the
electric pump according to the recommended instructions. Please refer to
Chapter VII.
13
LPA Series

9.3Gas-exhausting of heating system
14
LPA Series

10. Settings and performance of pump
1 0. 1 R el ati on s hi p b et w ee n p um p s et t in g s a n d i ts
p er f or m an ce
Settings
AUTO
（factory
settings）
BL1/BL2
HD1/HD2
HS1/HS2
/HS3
Water pump
characteristic curve Function
Highest to lowest
proportional
pressure curve
Proportional
pressure curve
Constant
pressure curve
Constant
speed curve
Night mode
Run at the lowest performance and power
“ Autoadaptation” function will automatically
control the water pump performance within the
specified range.
· A d just th e perfor m a nce of water pump
according to the size of system;
· A d just th e perfor m a nce of water pump
according to the load change of a period of time;
In the "Autoadaptation" mode, the water pump is
set to proportional pressure control mode.
Water pump working point will move up and down
on the proportional pressure curve according to
the flow needs of system, when the flow demand
reduces, the water pump pressure supply will
drop while when the flow demand increases, it
will rise.
Water pump working point will move back and
forth on the constant pressure curve according to
the flow needs of system. The pressure supply of
water pump remains constant, having nothing to
do with the flow demand.
Run on the constant curve at a constant speed. In
speed
HS (1-3) mode, the water pump is set to run on
the maximum curve under all working conditions.
Set the water pump to HS3 mode in a short time,
then gas in the pump will be vented quickly.
15
LPA Series

11.Performance curve
11.1 Performance curve guide
Each setting of the pump will have a corresponding performance curve
(Q/H curve). While AUTO autoadaptation mode covers a performance range.
Input power curve (P1 curve) belongs to each Q/H curve. Power curve
represents the power consumption (P1) of pump in watts on the given Q/H
curve.
11.2 Curve conditions
The following description applies to the performance curves in LPA
series manual:
· Testing liquid: gas-free water.
· Applicable density of curve ρ = 983.2 kg/cubic meter, and the liquid
temperature is +60 ℃.
· All the values expressed by curves are averages, they can not be taken
as the guaranteed curves. If a particular performance is required,
measurement must be conducted separately.
·Applicable kinematic viscosity of curveυ = 0.474 mm ² / s (0.474CcST)
11.3 Performance curve
·LPA XX-4 series
16
LPA Series

·LPA XX-5 series
·LPA XX-6 series
LPA XX-5 Performance curve
LPA XX-6 Performance curve
17
LPA Series