APPENDIX A
A.1
SHINHOO GPA25-9HW PWM PUMP
Table A-1: Shinhoo GPA25-9HW specifications
Feature
Nominal supply voltage
EEI Rating
Motor protection
Protection class
EMC Standards
Insulation class
Temperature class
Maximum Flow (m
/h)
3
Connection (inches)
Operational range
High voltage protection
Ambient temperature Range
Maximum media temperature
Minimum media temperature
Storage temperature
Minimum inlet pressure <75°C
System pressure
Maximum system pressure
Rated Condition (m @ m
/h)
3
Relative humidity
Acoustic sound pressure level (LP) ≤ 42 dB(A)
! CAUTION !
Ensure the system is filled to required system pressure
prior to the heat pump being powered on. The pump
should not be run dry.
! CAUTION !
Ensure to isolate and drain down the heat pump before
attempting any maintenance or repair.
Appendix A: Shinhoo GPA25-9HW
SHINHOO GPA25-9HW
Specification
EU: 1 x 230V +10% / -15%,
50/60 Hz
<0.21-Part3
The motor is protected by the
electronics in the control box
and requires no external motor
protection
IPX4D (standard without drain
holes)
EN 61000-6-1
EN 61000-6-3
H (EN 60335-1)
TF95
4.5
11/2 - 1 BSPM
2 to +95°C
EN 60335-1 1000V AC
0 to +75°C
+125°C
2°C (IPX4D: above dew point of
ambient air).
0°C to +55°C
0.05 MPa (0.50 bar) @ 0.5m head
0.3MPa (3 bar)
1 MPa (10 bar)
6.5 @ 2.5
Maximum 95%, non-condensing
environment
A.1.1
PWM PUMP
The pump is controlled by the Grant Aerona 290 via a PWM signal
that controls the speed by an ON/OFF and feedback to maintain
the required flow for the circuit.
Flow management devices such as flow regulators or restrictors
should not be used and all valves should be fully open. The
PWM pump will automatically attempt to compensate against and
restrictions to water flow which could lead to excessive wear and
energy usage.
Figure A-1: Pump performance
Table A-2: Ambient vs system flow temperatures
Ambient
Temperature (°C)
Minimum (°C)
0
10
20
30
35
40
! CAUTION !
System flow temperature should always be higher than
ambient temperature to avoid condensate on the pump.
Water temperature
Maximum (°C)
2
95
10
95
20
95
30
95
35
90
40
70
Page 71
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