Wilo Initial Hi-Smart variable-speed twin-pump booster set

Initial Hi-Smart is a packaged booster set with two vertical multistage pumps, each with an integrated frequency converter, and an LCD display, designed for the pressurised water needs of houses and residential complexes. The series has 10 models from 2 × 1.1 kW to 2 × 4 kW.

Make a quote with this series Compare models

Wilo Initial Hi-Smart variable-speed twin-pump booster set

Design: 2 vertical multistage pumps, each with integrated frequency converter, LCD display
Materials: Impeller, pump housing and shaft AISI 304; suction/discharge housing and flanges GG 20; composite diffuser
Seal / gasket: Graphite/ceramic mechanical seal, EPDM gasket
Fluid temperature: Max. 45 °C

Models (10)

Code	Model	Rated power (kW)	Rated power (HP)	Power supply	Manifold connection (DA / DI)	Pump family
2927519	Initial Hi-Smart 2-304-3/16/M/E-1,1	2 × 1.1	2 × 1.5	Single-phase 1~230 V	2½"	Hi-Smart 300
2927520	Initial Hi-Smart 2-305-3/16/M/E-1,5	2 × 1.5	2 × 2	Single-phase 1~230 V	2½"	Hi-Smart 300
2927521	Initial Hi-Smart 2-306-3/16/M/E-2,2	2 × 2.2	2 × 3	Single-phase 1~230 V	2½"	Hi-Smart 300
2927522	Initial Hi-Smart 2-307-3/16/M/E-2,2	2 × 2.2	2 × 3	Single-phase 1~230 V	2½"	Hi-Smart 300
2927523	Initial Hi-Smart 2-308-3/16/T/E-3	2 × 3	2 × 4	Three-phase 3~400 V	2½"	Hi-Smart 300
2927524	Initial Hi-Smart 2-309-3/16/T/E-3	2 × 3	2 × 4	Three-phase 3~400 V	2½"	Hi-Smart 300
2927525	Initial Hi-Smart 2-310-3/16/T/E-4	2 × 4	2 × 5.5	Three-phase 3~400 V	2½"	Hi-Smart 300
2927526	Initial Hi-Smart 2-405-3/16/T/E-3	2 × 3	2 × 4	Three-phase 3~400 V	3"	Hi-Smart 400
2927527	Initial Hi-Smart 2-406-3/16/T/E-3	2 × 3	2 × 4	Three-phase 3~400 V	3"	Hi-Smart 400
2927528	Initial Hi-Smart 2-407-3/16/T/E-4	2 × 4	2 × 5.5	Three-phase 3~400 V	3"	Hi-Smart 400

Series specifications

Design	2 vertical multistage pumps, each with integrated frequency converter, LCD display
Materials	Impeller, pump housing and shaft AISI 304; suction/discharge housing and flanges GG 20; composite diffuser
Seal / gasket	Graphite/ceramic mechanical seal, EPDM gasket
Fluid temperature	Max. 45 °C
Electrical	1~230 V or 3~400 V, 50 Hz · motor IP55 · insulation F
Control	Speed adapted to system pressure, rotation, automatic standby, one pressure sensor per pump, start-up assistant
Scope of delivery	2 pumps, 1 float switch, 2 pressure sensors, stainless suction and discharge manifolds, 4 isolating valves, 2 check valves, 2 pressure gauges, 4 anti-vibration mounts

How to choose

Head: The catalogue booster table takes 18.75 m for 1 floor and adds 3.75 m per extra floor. Compare the result with the Hi-Smart 300 and Hi-Smart 400 curves.
Pump family: 2-3xx models have 2½" manifold connections, 2-4xx models 3"; look at the 400 family for buildings that need more flow.
Power supply: Models up to 2 × 2.2 kW (304–307) are single-phase, models from 2 × 3 kW are three-phase.
Why variable speed: Pump speed follows system pressure; pumps cut in one after the other as demand requires and back each other up.

How to write it in a quote

Write code, full model name and power: "Wilo 2927523 Initial Hi-Smart 2-308-3/16/T/E-3 variable-speed twin-pump booster set, 2 × 3 kW, 3~400 V, stainless manifolds, valves, check valves and gauges included". Listing the scope avoids adding valves twice.

FAQ

Does the system stop if a pressure sensor fails?

No. Each pump has its own pressure sensor, and the catalogue states that operation continues if one sensor fails.

What is included?

Two pumps with frequency converters, one float switch, two pressure sensors, stainless suction and discharge manifolds, four isolating valves, two check valves, two pressure gauges and four anti-vibration mounts.

Which models run on single-phase supply?

Models 2-304, 2-305, 2-306 and 2-307 (M) run on 1~230 V; the others need 3~400 V.

Do both pumps run at the same time?

The pumps cut in under control according to the pressure demand and alternate; if one stops, the other takes over automatically.