Project Description

HE PWM Circulator Pump

Plastmax HE series pumps are premium high-efficiency circulators of compact design, suitable for all HVAC applications, from boilers and heat pumps to Heat Interface Units (HIU) systems. It is controlled with all basic functions and also PWM function for remote control. The pump features AUTO function which automatically adjusts the pump to system demands for optimal comfort and the lowest energy consumption as well as simple commissioning. The motor is based on permanent-magnet and compact-rotor technology securing silent operation and low energy consumption.

Suitable for:

  • Commercial heating
  • Commercial hot water recirculation
  • Domestic hot water recirculation
  • Domestic heating
  • Industrial heating
  • Heat pumps
  • Boilers

Supply voltage:
Flow rate, Qmax:
Pump head, Hmax:
Liquid temperature:
System pressure, Pmax:
Power Range:
Ambient temperature:
EEI:
Enclosure class:
Insulation class:
1 x 230 V – 50/60 Hz
4.0 m3/h
8 m
+2°C to +110°C (TF 110)
1.0 MPa/10 bar
5-65 W
0°C to +40°C
≤ 0.20
IP 44
E

» PWM remote control function along with other intelligent frequency control functions
» Compact design more fit to be built-in circulator for boilers and heat pumps
» Permanent magnet plastic injection motor of completely condensing water proof
» Exceeding benchmark level of the Ecodesign Requirements for 2015(ErP) with EEI ≤ 0.20
» Automatic and continuous detection of optimal duty point by AUTO mode
» Self-venting pump housing
» Visualized operation
» Fault prompt function
» Low noise level
» Based on 500,000 times test in extreme conditions

Key Features

Constant speed mode

Three constant speed modes for constant flow applications

Constant pressure mode

• The pump maintains constant pressure regardless of the flow
• The preferred operation mode for under floor heating and 2 string systems with low flow variation
• Constant pressure curves (low and high)

Proportional pressure mode

• If the proportional pressure mode is selected, the differential pressure varies proportionally with the flow, i.e. higher flow means higher differential pressure
• Proportional pressure is the preferred choice for one-string systems with high flow variation
• Proportional pressure curve (high and low)

Autoadapt mode

• The factory setting, AUTO, analyzes the heating system and automatically adjusts the pump setting to meet the heating requirement. The result is optimum comfort and a minimum of energy consumption.
• AUTO can be used in 80% of the heating system

Technical Data

Type Max. volume flow
Qmax
Max. delivery head
Hmax
Energy efficiency
index (EEI)
Thread Threaded pipe
union
Rated
pressure
Overall
length
Mains
connection
Gross
weight
HE 20/4 2.2 m³/h 4 m ≤ 0.20 G 1″ G 3/4″ 10 bar 130 mm 1~230 V,
50/60 Hz
2.0 kg
HE 25/4 2.5 m³/h 4 m ≤ 0.20 G 1 1/2″ G 1″ 10 bar 130/180 mm 1~230 V,
50/60 Hz
2.4 kg
HE 32/4 2.9 m³/h 4 m ≤ 0.20 G 2″ G 1 1/4″ 10 bar 180 mm 1~230 V,
50/60 Hz
2.8 kg
HE 20/6 2.9 m³/h 6 m ≤ 0.20 G 1″ G 3/4″ 10 bar 130 mm 1~230 V,
50/60 Hz
2.0 kg
HE 25/6 3.2 m³/h 6 m ≤ 0.20 G 1 1/2″ G 1″ 10 bar 130/180 mm 1~230 V,
50/60 Hz
2.4 kg
HE 32/6 3.6 m³/h 6 m ≤ 0.20 G 2″ G 1 1/4″ 10 bar 180 mm 1~230 V,
50/60 Hz
2.8 kg
HE 20/8 2.9 m³/h 8 m ≤ 0.21 G 1″ G 3/4″ 10 bar 130 mm 1~230 V,
50/60 Hz
2.0 kg
HE 25/8 3.6 m³/h 8 m ≤ 0.21 G 1 1/2″ G 1″ 10 bar 130/180 mm 1~230 V,
50/60 Hz
2.4 kg
HE 32/8 4.0 m³/h 8 m ≤ 0.21 G 2″ G 1 1/4″ 10 bar 180 mm 1~230 V,
50/60 Hz
2.8 kg

Measurement

                                                            HE pump dimension

Type L1
(mm)
L2
(mm)
L3
(mm)
H1
(mm)
H2
(mm)
H3
(mm)
G
(inch)
Material of rear housing
HE 20/x 93 126 99 110 130 60 1″ cast iron
HE 25/x 93 126 99 110 130/180 60 1 1/2″ cast iron
HE 32/x 93 126 99 110 180 60 2″ cast iron