Wilo Yonos MAXO User Manual

en
Installation and operating instructions • Wilo-Yonos MAXO/-D/-Z • Ed.01/2022-08 15
Hot components
WARNING
Risk of burns from hot surfaces!
Pump housing and glandless motor can get hot and cause burns when touched.
• Only touch the control module during operation.
• Allow the pump to cool down before commencing any work.
5 Description of the pump
Fig.1: Pump overview
Item Name
1 Pump housing
2 Motor
3 Control module
4 LEDdisplay and fault signal LED
5 Operating button
6 Plug
Table1: Description of the pump
The high-efficiency pumps Wilo-Yonos MAXO, Wilo-Yonos MAXO-D and Wilo-Yonos MAXO-Z in the version
with flange or threaded pipe union are glandless pumps with a permanent magnet rotor and integrated differ-
ential pressure control.
There is a control module (Fig.1, item3) on the motor housing, which controls the pump and provides an SSM
interface. Depending on the chosen application or control function, speed or differential pressure will be con-
trolled. For all differential pressure control functions, the pump continuously adapts to the system’s changing
power requirements.
Power limit
The pump is fitted with a power-limiting function, which prevents overload. This may have an operational in-
fluence on the delivery rate.

Wilo Yonos MAXO Specifications

General

Model	Yonos MAXO
Category	Water Pump
Protection Class	IPX4D
Max. Operating Pressure	10 bar
Frequency	50/60 Hz
Temperature Range	-20°C to +110°C
Energy Efficiency Index (EEI)	≤ 0.23
Application	Heating, cooling, and solar systems
Operating Modes	Constant pressure
Motor Protection	Integrated
Materials	Cast iron, stainless steel
Voltage	230 V
Ambient Temperature	Up to +40°C
Connection Size	DN 25
Power Supply	1~230 V, 3~400 V (depending on the model)