Compact pressure boosting system according to DIN 1988 and DIN EN 806, for direct or indirect connection. Consisting of non-self-priming, switched in parallel, horizontal stainless steel high-pressure multistage centrifugal pumps. Ready for connection with stainless steel pipework, mounted on a base frame, including control device with all necessary measurement and adjustment equipment.
For fully automatic water supply and pressure boosting in residential, commercial and public buildings, hotels, hospitals, department stores and for industrial systems.
For pumping drinking water, process water, cooling water or other service water, which does not affect the materials used, neither chemically nor mechanically, and does not contain any abrasive or long-fibre constituents.
Special features/product benefits
– High operational reliability, thanks to system with one, two or three horizontal multistage CH1-L pumps with stainless steel hydraulics
– Easy installation and maintenance thanks to special, flexibly adjustable connections to manifolds
– Easy commissioning and operation with the Easy Controller
– Drinking water approval (ACS and UBA List) for pumps with components made of stainless steel that come into contact with the fluid
Equipment/function
– 1 CH1-L pump per system
– Components that come in contact with the fluid are corrosion-resistant
– Electrogalvanised base frame with height-adjustable vibration absorbers for insulation against structure-borne noise
– Stop valve on every pump on the suction and discharge sides
– Non-return valve, on the discharge side
– Pressure sensor, on the discharge side
– Pressure gauge optional, on the suction side
– Pressure gauge, on the discharge side
– Diaphragm pressure vessel (8 l/PN 10)
– Low-water cut-out switchgear, optional
– EC-control with IP54 plastic housing, consisting of an internal power supply unit, microprocessor, analogue and digital input and output modules
Operation/display
– Fully electronic Easy Controller with internal power supply unit, microprocessor, analogue and digital inputs and outputs for controlling and linking constant speed single pumps
– Factory-preset parameters for easy commissioning/start
– Adjustment of the setpoint, operating parameters and acknowledgement of the fault messages thanks to Green Button Technology
– LCD display (backlit) for displaying the operating data, the controller parameters, the operating status of the pump, the actual pressure, the error messages and the history log
– LEDs for displaying the system status (operation/fault/low water/overpressure)
– Lockable main switch
– Menu navigation with symbols
– Locking the parameter settings
– Operation can be selected with/without standby pump
– Elapsed time indicator for each pump
– Elapsed time indicator for the whole system
– Mains On/Off counter for each system
– Fault log for the last 9 faults
Accessories
Accessories can be ordered optionally. Factory installation or retrofitting after technical checks.
Recommended accessories (to be ordered separately)
– Optional WMS low-water cut-out switchgear kit
– Flexible connection pipes or compensators
Operating Data
Fluid media: Water 100 %
Fluid temperature: 20.00 °C
Requested flow:
Requested head:
Number of pumps: 1
Fluid temperature: 3…60 °C
Ambient temperature: 5…40 °C
Maximum operating pressure: 10 bar
Maximum inlet pressure: 600 kPa
Motor data (per motor)
Mains connection: 3~400V/50 Hz
Rated power: 0.37 kW
Rated current: 1.1 A
Rated speed: 2,900 1/min
Motor efficiency class: IE2
Insulation class: F
Protection class motor: IP55
Protection class switchgear: IP54
Materials
Pump housing: 1.4301
Impeller: 1.4301
Shaft: 1.4301
Shaft seal: BQ1E3GG
Gasket material: EPDM
Pipework material: 1.4301/CW617N
Installation dimensions
Pipe connection on the suction side: G 1¼, PN 10
Pipe connection on the discharge side: G 1¼, PN 10
Ordering information
Brand: Wilo
Product description: Isar MODH1-1CH1-L-402/EC
Net weight, approx.: 25 kg
Article number: 2551901
