Versatile, High-Performance Condensate Pump Engineered for Demanding Humidity Conditions
The MaxiBlue® condensate pump is a high-performance solution designed for efficient and reliable condensate removal in air conditioning and refrigeration systems. Featuring advanced thermistor technology, it offers quiet operation, self-priming capability, and energy-efficient performance, making it ideal for mid-range AC units in commercial and residential settings. With its compact and versatile design, the MaxiBlue® can be installed in various orientations, ensuring flexibility even in challenging locations. Whether used in offices, hotels, or ceiling-mounted units, this pump delivers powerful, maintenance-free operation while minimising downtime and disruption.
Key Features
• Quiet in operation – 21dB(A)
• Mid-range condensate pump merging size and performance into one
• Self-priming activation, no need for siphoning devices
• Unique patented Rotary Diaphragm technology
• Plug and play set-up for quick installation
• Small and compact body
Application
• Air conditioning systems up to 14KW
• Mini-Split
• Cassette systems
• Mid-range fan coil applications
• Ideal for large office blocks
• Conference rooms
• Retail and commercial areas
• High-humidity environments
PurchaseD With
• Reservoir (Thermistor sensing technology) – UK, EU, USA
• DrainStik® (Thermistor sensing technology) –UK, EU, USA
• Temperature Sensor (Thermistor sensing technology) UK, EU, USA
• Available in either High Level Alarm (HLA) or Fail Safe Alarm (FSA) models
• See pump specifications for purchase code options
Performance
Max Flow:
14 L/Hour
Max Head:
8 Metres
Max Lift:
8 Metres
Volume:
21 dB(A)
UNIT
Max A/C KW:
0.8-14 KW
Consumption
Voltage:
240V
Frequency:
50Hz
Draw (A):
0.03A (115V), 0.06 (240V)
Power (W):
5.5W
Power (VA):
5.7VA
Power Factor:
0.96
IP Rating:
IPX4
Sizing
Dimensions:
157 x 58 x 67mm
Weight:
663g
Inlet:
8mm Straight
Outlet:
8mm Straight
Alarm Lead:
0.5 Metres
Reservoir:
90 x 40 x 30mm
Performance
Max Flow:
3.7 G/Hour
Max Head:
23 Feet
Max Lift:
23 Feet
Volume:
21 dB(A)
UNIT
Max A/C BTU:
48000 BTU
Consumption
Voltage:
110 - 240 V
Frequency:
50/60Hz
Draw (A):
0.13 (115V), 0.06 (240V)
Power (W):
5.5W
Power (VA):
5.7VA
Power Factor:
0.96
IP Rating:
IPX4
Sizing
Dimensions:
6.1 x 2.28 x 2.63 Inches
Weight:
23.3 oz
Inlet:
1/4 Inch Barbed
Outlet:
1/4 Inch Barbed
Alarm Lead:
1.6 Feet
Reservoir:
3.5 x 1.5 x 1.2 Inches
TESTED performance
Rigorously tested by our in-house R&D team, every MaxiBlue pump undergoes thorough performance and endurance testing before leaving our manufacturing facilities, ensuring consistent, reliable operation in the field.
Regularly trusted by engineers worldwide, the Microblue has earned a reputation for durability and reliability, significantly reducing the need for call-outs and regular maintenance.
TESTED performance
Rigorously tested by our in-house R&D team, every MaxiBlue pump undergoes thorough performance and endurance testing before leaving our manufacturing facilities, ensuring consistent, reliable operation in the field.
Regularly trusted by engineers worldwide, the Microblue has earned a reputation for durability and reliability, significantly reducing the need for call-outs and regular maintenance.
Discharge Pipe
Vertical (V):
Horizontal (H):
8 Metres
0 Metres
7 Metres
3 Metres
6 Metres
6 Metres
5 Metres
9 Metres
4 Metres
12 Metres
3 Metres
15 Metres
2 Metres
18 Metres
1 Metres
21 Metres
Unit Size
Max KW Unit:
14KW
Unit Type:
Mini split
Note: The MaxiBlue® can be mounted in any orientation up to 8 Metres away from the air-conditioning unit. We recommend mounting the pump inside the ceiling cavity or ducting kit for a discreet fit.
Discharge Pipe
Vertical (V):
Horizontal (H):
25 Feet
0 Feet
22 Feet
9 Feet
20 Feet
20 Feet
16 Feet
30 Feet
13 Feet
40 Feet
9 Feet
50 Feet
6 Feet
60 Feet
3 Feet
70 Feet
Unit Size
Max KW Unit:
18000 BTU
Unit Type:
Mini split
Note: The MaxiBlue® can be mounted in any orientation up to 25 Feet away from the air-conditioning unit. We recommend mounting the pump inside the ceiling cavity or ducting kit for a discreet fit.
| Pump purchasing options | Part No. | Available in |
|---|---|---|
| MaxiBLUE® + RESERVOIR (FSA) | X87-701 | UK, EU, ROW |
| MaxiBLUE® + DRAINSTIK® SENSOR | X87-702 | UK, EU, ROW |
| MaxiBLUE® + TEMPERATURE SENSOR | X87-703 | UK, EU, ROW |
| MaxiBLUE® + (FSA) PRO PACKAGE | X87-707 | UK, EU, ROW |
| MaxiBLUE® + RESERVOIR (FSA) (115V) | X87-711 | Americas |
| MaxiBLUE® + DRAINSTIK® (FSA) (115V) | X87-712 | Americas |
| MaxiBLUE® + RESERVOIR (FSA) (208V - 230V) | X87-721 | Americas |
| MaxiBLUE® + DRAINSTIK® (FSA) (208V - 230V) | X87-722 | Americas |
| MaxiBLUE® + TEMPERATURE SENSOR (115V) | X87-713 | Americas |
| MaxiBLUE® + TEMPERATURE SENSOR (208V - 230V) | X87-723 | Americas |
Alarm differences
FSA– Fail safe alarm, a volt free relay designed to switch the AC unit off, but leaves the pump running continuously when the condensate reaches a critical point in the reservoir.
HLA– High Level Audio is an integral audio and visual alarm. When the condensate is at a critical point with-in the reservoir, the diagnostic light in the pump will switch from green and will start to flash red with a 2 beep warning every minute. The pump will continue to operate while in alarm mode.
This mark indicates that our motors comply with UK regulations and meet the required health, safety, and environmental protection standards for products sold in Great Britain (England, Scotland, and Wales). For details, visit our compliance website here.
This mark signifies that our motors comply with CE requirements, confirming they meet essential health, safety, and environmental protection standards for products sold within the European Economic Area (EEA). For more information, visit our compliance website here.
Plenum spaces circulate air in buildings, often for HVAC systems. “Plenum-rated” materials limit smoke and toxic fumes in a fire, helping prevent their spread through the building. Visit compliance website here.
This mark indicates that our motors have been tested and meets safety standards in both the United States (UR) and Canada (cUR). Visit compliance website here.
Unique features
PUMPS BIOFILMS & DEBRIS WITH EASE
Utilising the power of our exclusively patented rotary diaphragm technology, the MaxiBlue pump efficiently removes condensate, preventing biofilms building-up in the HVAC system, ensuring smooth, uninterrupted drainage. Its powerful pumping technology effectively clears debris and minimises blockages, reducing maintenance requirements and lowering the risk of system failure and biofilm build-up in the system.
FLEXIBLE SENSING OPTIONS
The MaxiBlue® offers a variety of smart sensing options to suit different HVAC applications:
Reservoir Sensor (X87-701 / 711 for USA): Uses advanced thermistor technology, eliminating the common failures of traditional float switches. Compact, silent, and maintenance-free, it reliably detects condensate even in demanding environments.
DrainStik™ Sensor (X87-702 / 712 for USA): An ultra-compact, in-line sensor designed for direct installation in the drainpipe, offering precise condensate detection without interfering with drainage flow.
Temperature Sensor (X87-703 / 713 for USA): Triggers the pump when a 5°C difference is detected between the air inlet and outlet, enabling immediate, uninterrupted condensate removal.
FLEXIBLE INSTALLATION
The MaxiBlue pump offers flexible installation with the ability to be mounted in any orientation without affecting performance (8m/ 23ft away from the unit). Its compact design and versatile mounting options allow for seamless integration into tight spaces or unconventional setups, ensuring reliable operation across a wide range of applications.
TRUSTED RELIABILITY
The MaxiBlue® was the first in its class to come with a market leading 3-year warranty—proof of the confidence we have in its patented, ultra-reliable pumping technology.
Every MaxiBlue pump is precision-engineered and rigorously tested at our state of the art manufacturing facility meeting or exceed ISO9001 standards. From material selection to final inspection, quality is built into every step.
Rotary Diaphragm Technology EXPLAINED
VALVELESS TECHNOLOGY
Related Products
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| Max Head: | 8 M (26 FT) |
| Max Lift: | 5 M (16FT) |
| Sound: | 21 dB(A) |
| Unit: | 3.5 – 8.0 KW (18000 BTU) |
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| Max Flow: | 14 L/HOUR (3.7 G/HOUR) |
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Available in UK, EU & USA






UK, EU, ROW
Americas