Shinhoo GPA-II Series User manual

Energy-saving Pipeline Canned
Motor Pump
Series
GPA-II
Installation and
Operation Manual
Hefei Xinhu Canned Motor Pump Co., Ltd.

Notes:
01. Read the installation manual 11. Some models are not suitable for
carefully before installation and drinking water.
use. 12. The liquid may be high-temperature
02. The manufacturer will not be liable and high-pressure; therefore, the
for any personal injury, pump liquid in the system must be
damag e and other p roper ty completely drained or the shut-off
damage due to failure to comply valves on both sides must be
with contents specified in safety closed b e for e m o v i n g a n d
warning signs. dismantling the pump to prevent
burning.
03. The installers and operators must
comply with local safety regulations. 13. If removing the exhaust bolt, high-
temperature and high-pressure
04. The user must confirm that only liquid will be overflew. Therefore, it
q u a l i f i e d p e r s o n n e l w i t h is necessary to insure that the
professional cer tification and outflow liquid will not cause
proficiency of this manual is personal injury or damage other
allowed to install and maintain this parts.
product.
14. Ventilation must be ensured in
05. The pump must not be installed in a s u m m e r o r h i g h a m b i e n t
place that is damp or may be temperature period to avoid
splashed by water. condensation that may cause
electrical malfunctions.
06. For c onvenient access of
maintaince, a shut-off valve shall be 15. In winter, the pump system does
installed on each side of the pump not work or when the ambient
temperature drops below 0 ℃,
07. The power supply of the pump shall
liquid in the system shall be
be cut off before installation and
completely drained so as to avoid
maintainace.
frost cracking of pump body.
08. For domestic hot water, copper or
16. If the pump is left unused for a long
stainless steel pump body shall be
time, please close the pipe valve in
used.
the inlet and outlet of the pump and
09. Heat supply pipelines shall not be cut off the power supply.
frequently filled with non-softened
17. If the flexible cord of cable is
water so as to avoid increasing
damaged, it must be replaced by a
calcium in the circulating water
qualified person.
inside the pipeline, which may thus
block the impeller. 18. Please close the valve at the inlet of
the pump and cut off power of the
10. Do not start the pump without
pump immediately if overheating
liquid.
01

and abnormality of motor is detected, and contact your vendor or service center
immediately.
19. If trouble cannot be addressed according to the manual, please close the valves
on the inlet and outlet of the pump immediately, cut off power supply and contact
your vendor or service center immediately.
20. This product shall be put in a place out of reach of children. After installation, take
an isolation measures to avoid access of children.
21. This product shall be stored in a dry, well ventilated and cool place under room
temperature.
Warning
Before installation, you must carefully read the installation
and operation manual. The installation and use of the
equipment must comply with local regulation and
applicable operation standards.
Warning
Those who have weak physical strength, react slowly
orlack experience and knowledge (including children) can
use this motor pump only under the monitoring and
direction of his/her safety personnel.
Caution
Note
Warning
Failure to comply with this safety instruction may lead to
personal injury!
Failure to comply with this safety instruction may lead to
equipment malfunction or damage!
Note or instruction for easy and safe operations.
1. Signs
02

2. General
2.1. GPA series circulation
motor pump is mainly
used in domestic heating
and hot water system.
The product is most applicable to the
following systems:
·
system
·variable-temperature pipeline heat
supply system
·heat supply system with night mode
·PWM signal controlled system
·HVAC system
· industrial circulation system
·domestic heating and domestic
water supply system
This pump is equipped with
permanent-magnet motor and
differential pressure controller,
capable of automatically &
co ntinuously adjusting motor
performance to meet the actual
needs of system.
This pump is equipped with control
panel on the front for easy operation
by users.
stable and variable-flow heat supply
2.2. Advantages
Easy installation and start-up
·
AUTO
(Initial setting). In most cases, the
motor pump needs no adjustment
and can be readily started and
automatically adjusted to meet the
actual needs of the systems.
High-degree comfort
·Low operational noise of motor pump
and whole system.
Low energy consumption
·
motor pumps, it has lower energy
consumption. GPA series circulation
motor pump is attached with Europe
Energy Label Class A marking, and
the minimum energy consumption
can reach up to 5W.
Provided with self-adaptive mode
Compared with traditional circulation
03

3.1 Ambient Temperature
Ambient temperature: 0 40
3.2. Relative humidity(RH):
Max. humidity: 95%
3.3. Medium (liquid delivery) temperature
Liquid delivery temperature: +2 ℃110
To avoid condensation in control box and the stator, the temperature of liquid
pumped by the motor pump must be always higher than ambient temperature.
3.4. System Pressure
Maximum pressure 1.0Mpa(10bar).
3.5. Degree of Protection
IP42
3.6. Inlet Pressure
.
℃~+ ℃
~℃
Liquid Temperature
<85℃90℃110℃
Inlet Pressure
0.05bar 0.28bar 1bar
0.5m head 2.8m head
3.7. Pumping Liquid
The pumping liquid includes thin, clean, non-corrosive and non-explosive liquid
which shall not contain any solid particles, fiber or mineral oil, and the pump must
definitely not be used to pump inflammable liquid such as rapeseed oil and gasoline.
If the pump is used in a place with relatively high viscosity, the pump has lower
performance. So when choosing a pump, the viscosity of liquid must be taken into
account.
3. Operating Conditions
10m head
04

4.1.
·
circulation pump, the arrow on motor
pump case indicates the flow
direction of liquid through the pump.
·When installing the motor pump in
the pipeline, two supplied gaskets
must be installed at the inlet and
outlet.
·During the installation, the shaft of
motor pump must be horizontal.
Installation
W hen i n s tal l i n g G PA s e rie s
4. Installation
05

4.2. Position of Junction Box
06
4.3.
The junction box can be rotated in a step of 90°
The procedures for changing the position of junction box are as follows:
1. Close the valves at the inlet and outlet and release the pressure;
2. Unscrew and remove the four socket head screws that fasten the pump body;
3. Rotate the motor to the expected position and align the four screw holes;
4. Install the four socket head screws again and fasten them clockwise;
5. Open the valves at the inlet and outlet.
Changing Position of Junction Box
。

Warning
Pumping liquid may be high-temperature and high-pressure;
therefore, the liquid in the system must be completely drained or the
valves on both sides of motor pump must be closed before removing
the socket head screws.
4.4. Thermal Insulation of Motor Pump Body
Limiting the heat loss of motor pump body and pipeline.
Motor pump body and pipeline should be thermally insulated to reduce
their heat loss.
Do not isolate or cover the junction box and control panel.
Caution
Note
07

5. Electrical Connection
08

Electrical connection and protection shall comply with
local codes and norms.
Warning
The motor pump must be earthed
The motor pump must be connected to an external power switch,
and the minimum space between all the electrodes is 3mm.
.
·
·Check if the supply voltage and frequency are the same as parameters indicated on the
nameplate of the motor pump.
·Connect the motor pump and power supply with the plug supplied together with the
pump.
·After the power is supplied, the indicator lamp on the control panel is ON.
GPA series circulation motor pump needs no protection from external motor.
09

6. Control Panel
Position
Descriptions
1
2
3
4
Indication lamp area in the Night
Mode (AUTO).
Button to start or turn off Night
Mode (AUTO).
Monitor that displays the actual power
consumption of motor pump in Watt.
Indication lamp area of eight operation
modes set by motor pump.
Indication lamp area of signal input
5
Button for setting operation modes of
the motor pump.
6.2. Indication lamp area of
power consumption of
motor pump
After the power is connected, the
monitor in Position 2 works.
During operation, the indicated value is
in Watt, showing the actual power
consumption of the motor pump.
When the motor pump fails to work, the
monitor indicates ：
If malfunction is detected, the power
supply must be cut off before trouble-
shooting. A f ter t he troubl e is
addressed, re-connect the power and
start the motor pump.
6.1. Controls on Control Panel
6.3. Indication Lamp Area of
Motor Pump Setting
GPA- series circulation motor pump
has eight settings which can be chosen
with the button.
The motor pump settings are indicated
with eight different indication lamp
areas and display is controlled by PWM
external signal.
II
10
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)

Button Times
Indication Lamp Area
0
1
2
3
4
AUTO ( )Initial setting
BL1
BL2
HD2
Descriptions
5
6
7
Self-adaptive (AUTO)
Lowest Proportional Pressure Curve
Highest Proportional Pressure Curve
HD1
Ⅲ
Ⅱ
Ⅰ
PWM
6.4.
By pressing the button once at 2 seconds interval, the motor pump setting mode will
change once.
A cycle is constituted of every eight presses on the button. For details, please refer to
Section 6.3.
6.5. Button to Display Night Mode and Start Night Mode
· When is on, it indicates that the Night Mode is activated.
· Press this button to activate and deactivate Night Mode.
· Night Mode is only applicable to heating system equipped with this function.
· Initial setting: Night Mode not set
Button for selecting motor pump settings
Note If the pump has been set to Velocity I, Velocity II, Velocity III or
PWM signal control, then Night Mode Function cannot be selected.
Lowest Constant Pressure Curve
Highest Constant Pressure Curve
Constant Velocity Curve, Velocity III
Constant Velocity Curve, Velocity II
Duty Cycle and Rotational Speed Curve
(Controlled by external signal)
Constant Velocity Curve, Velocity I
11

7. Pump Setting
7.1. Pump Setting Based on System Type
Initial setting AUTO Self-adaptive mode
Recommended and available pump setting
= ( )
Position System Type
A
B
C
Floor heating system
Dual pipeline
heating system
Motor Pump Setting
AUTO
AUTO
BL1
HD1 HD2 PWM、 、
BL2 PWM、
Recommended Options
Single pipeline
heating system
·
on the actual heat demand of the system. As the performance is adjusted gradually,
it is suggested, before changing motor pump setting, to maintain AUTO (Automatically
Adaptive Mode) mode setting for at least one week.
· If you select to change back to AUTO (Self Adaptive Mode) mode, the GPA series
motor pump can memorize its last setting in AUTO mode and continue adjusting the
performance automatically.
AUTO (Self Adaptive Mode) mode can adjust the performance of motor pump based
12
BL2 PWM、

· It may take several minutes or even hours to reach the optimal operation mode after motor
pump setting is changed from the optimal setting (the “Recommended abovemention”) to other
optional setting. If the optimal setting of motor pump fails to enable each room to obtain
desired heat distribution, then you should change the motor pump setting to other settings.
· Please refer to Section 12.1 for the relations between pump setting and performance curve.
7.2.
When the pump is working, the pump is controlled according to the principle of “Proportional
Pressure Control (BL)” or “Constant Pressure Control (HD)”
In these two control modes, the pump performance and corresponding power consumption will
be regulated according to the heat demand of the system.
Proportional Pressure Control
In this control mode, the differential pressure of both ends of the pump will be controlled by the
flow rate. In the Q/H Figure, proportional pressure curve is represented with BL1 and BL2.
Please refer to Section 12.1.
In these two control modes, the pump performance and corresponding power consumption will
be regulated according to the heat demand of the system.
Constant Pressure Control
In this control mode, the differential pressure of both ends of the pump remains constant and is
irrelevant to the flow rate. In the Q/H Figure, constant pressure curve is a horizontal performance
curve represented with HD1 and HD2. Please refer to Section 12.1.
Control Pump
13

Night Mode (AUTO)8.
8.1. Basic Principle
Warning
Night Mode is unavailable for the GPA series motor pump installed in gas
boiler heating system with small water capacity.
If VelocityⅠ, VelocityⅡ, or Velocity Ⅲ mode have been selected, theNight
Mode will be disabled; if PWM mode signal input is selected, then
functions of other modes will be disabled.
If power supply once has been cut off, then the Night Mode shall be
restarted.
If heat supply of the heating system is insufficient (not enough heat), then
check if the Night Mode function is activated. If yes, disable the Night
Mode function.
Note
Note
Note
14

To ensure that the best status is realized in Night Mod, the following conditions
must be satisfied:
· The motor pump must be installed in the water inlet pipeline of the system and near the water
outlet of boiler.
· If the motor pump is installed in the water return pipeline of the system, then the Night Mode
function will be disabled.
· The system must be included with liquid temperature automatic control.
· Press button to activate night mode.
Please refer to Section 6.5.
8.2.
Once the Night Mode is enabled, GPA series motor pump will automatically switch between
normal mode and Night Mode.
The switching of GPA series motor pump between normal mode and Night Mode depends on the
temperature of system inlet pipeline (not water return pipeline).
When the temperature drop of system inlet pipeline within two hours is higher than 10~15℃,
GPA series motor pump will switch to Night Mode automatically. The temperature drop must be at
least 0.1℃/min.
when the temperature of system pipeline rises about 10℃, it will switch to normal mode (time
irrelevant).
Night Mode Function
15

9. PWM Signal Control Mode
9.1.
Mode
1)
GPAXX-XX II model pump is controlled
by modulated LV PWM (Pulse Width
Modulation) digital signal, which
means that the variance of velocity
depends on the external input signal.
The variance of velocity is one of the
functions of input control.
2) Digital LV PWM (Pulse Width
Modulation) Signal
Design frequency scope of square
wave PWM signal:40Hz-4000Hz;
PWM input signal (PWM IN) is used to
give velocity commands, and adjusts
the velocity commands through
adjusting PWM duty cycle.
PWM output signal (PWM OUT) is the
feedback signal of the pump, and the
PWM frequency is fixed at 75Hz.
Control and Signal
Control Principle
3)
T = 2 ms（500Hz）
t = 0.6 ms
d%=100×0.6/2=30%
UiH = 4 24V
UiL ≤ 1V
IiH ≤ 10mA
Duty Cycle（d%）
～
Descriptions
Cycle
Duty Cycle
Input High Voltage
Input Low Voltage
Input Current
Code
d
UiH
UiL
T
IiH
9.2. Interface
The pump is controlled by external
electrical elements and components
through interfaces. The interfaces convert
external signals into signals that can be
recognized by microprocessor in the pump.
In addition, when the pump is supplied with
230V voltage, the interfaces can ensure
that users will not be at risk of high voltage
electric shock when contacting the signal
cable.
Note “Signal Ref” is a reference earthing, and it is not connected to
protective earthing.
16

9.3.
9.3.1 PWMi nputs ignalp rofil P WM1(heating)
·
signal, when the input signal
fluctuates in the critical point, there
will be a delay area to prevent
frequent stop and start of the pump.
·In area of low duty cycle PWM1
signal, the pump runs at high
velocity for the sake of system
safety. For instance, when the signal
cable of gas boiler system is
damaged, the pump will continue to
run at the maximum rotational
speed and transfer heat through
main heat exchanger. This is also
applicable to heat pump, ensuring
continuous heat transfer in the case
of signal cable of pump is damaged
and system safety is guaranteed.
PWM Input S ignal
In area of high duty-cycle PWM1
-
Pump Status
the pump runs at the highest velocity
the pump curve will drop from the highest
to the lowest
the pump runs at the lowest velocity
the pump switches to non-PWM mode (normal
mode), and the default system will have no PWM
signal input.
if the velocity variance point of input signal fluctuates,
then it will block the start and stop of thepump
according to the principle of magnetic hysteresis
PWM1 Input Signal (%)
＜10
10 84～
85 91～
0
91 95～
96 99～
100
stand-by, the pump stops
the pump switches to non-PWM mode (normal
mode), and the default system will have no PWM
signal input.
This system is adaptive to the automatic switching of PWM1 and non-PWM
mode. When there is PWM1 signal input, the syst em will enter PWM1 mode.
Note
17
·When PWM1 input signal is 0% or 100%, the
pump will switch to non-PWM mode (normal
mode), and the default system will have no
PWM signal input.

9.3.2 PWM input signal profile PWM2(solar)
·
there will be a delay area to prevent frequent stop and start of the pump.
· Without PWM2 signal percentages, the circulator will stop for safety reasons. If a signal is
missing, for example due to a cable breakage, the circulator will stop to avoid overheating of
the solar thermal system.
· When PWM2 input signal is 0 or 100%, the pump will switch to non-PWM mode (normal
mode), and the default system will have no PWM signal input.
In area of low duty-cycle PWM2 signal, when the input signal fluctuates in the critical point,
PWM2 Input Signal (%)
1～4
Pump Status
Stand-by, the pump stops.
5 7～
if the velocity variance point of input signal fluctuates, then it will
block the start and stop of the pump according to the principle
of magnetic hysteresis .
8 16～The pump runs at the lowest velocity
17 90～The pump curve will rise from the lowest to the highest .
91 99～The pump runs at the highest velocity.
100 The pump switches to non-PWM mode (normal mode), and the
default system will have no PWM signal input.
18

9.4.
PWM feedback signal can provide operation status of the pump, such as power loss or all kinds
of alarm/warning modes.
PWM feedback signal will feed back exclusive alarming information. If the power voltage detects
under voltage signal values, its output signal will be set to 75%. Provided sundries settlement
exists in the hydraulic system and causes rotor being blocked, the duty cycle of output signal is
set to 90%, the alarm will be given higher priority.
PWM Feedback Signal
19
Descriptions
the pump does not work and will
restarts only after trouble is
addressed
the pump does not work and will
restarts only after trouble is addressed
the pump runs, trouble has been
detected under this situation but it is
not critical, and the pump can still work.
the pump stops
0-70W(slope 1 W/% PWM)
PWM Output
Signal (%)
90
85
75
95
0 70～
Pump Status
alarm stops, malfunctions
(pump blocked)
alarm stops, electrical
malfunction/trouble
warning
Standby (stop)