Overview
Our most popular watermakers are the AC variants as they provide high fresh water production while retaining modest power requirements. The highest output available is the Framed Rainman Torrent at 240 litres per hour (63 gph) and our most commonly sold system is the 140 litre per hour (37 gph) available in Portable, Modular, or Framed formats.
In order to maximise reliability and serviceability, all our AC electric systems utilise an impeller lift pump and ceramic piston triplex plunger pump, both mounted on each end of an induction AC motor with a through shaft.
Power and Production Options
With recent advancements in power generation, storage, and conversion, it is easier than ever to have sufficient useable power available for running your watermakers. Most of Rainman’s AC watermakers (except for 240lph Torrent) use the same motor pump configuration. They vary membrane configuration and system format to meet your production and operational requirements.
AC Electric System Options
The Rainman DC Electric systems can be shipped in different formats to meet your requirements.
Model |
Output |
Power |
|
|---|---|---|---|
| Portable - Controlled in case only, but can be converted to installed | |||
| AC-140L Popular |
100-154lph 26-41gph |
115VAC or 230VAC 1,250 watts |
|
| AC-75L | 55-82lph 15-22gph |
115VAC or 230VAC 1,250 watts |
|
| AC-70L | 50-77lph 13-20gph |
115VAC or 230VAC 1,250 watts |
|
| Modular - Available with basic control, manual control panel, or full auto control panel | |||
| AC-140L Most Popular |
100-154lph 26-41gph |
115VAC or 230VAC 1,250 watts |
|
| AC-75L | 55-82lph 15-22gph |
115VAC or 230VAC 1,250 watts |
|
| AC-70L | 50-77lph 13-20gph |
115VAC or 230VAC 1,250 watts |
|
| Framed - Available with manual control panel, or full auto control panel | |||
| AC-240L Popular |
180-264lph 48-70gph |
115VAC / 230VAC 2,450 / 2,800 watts |
|
| AC-140L | 100-154lph 26-41gph |
115VAC or 230VAC 1,250 watts |
|
| AC-100L | 70-110lph 18-29gph |
115VAC or 230VAC 1,250 watts |
|
Configuration Options
Rainman AC electric watermakers can be purchased in three different configurations.
Modular Installed System
For a minimum footprint installation, the Modular configuration works very well. Our systems are uniquely designed in that we have a single motor with a lift pump and high pressure pump mounted on either side of a through shaft. This simplifies operation and minimises failure points.
The Modular configuration can be used with a minimalist valve/gauge control, a manual control panel with autoflush, or with our fully automated control panel. It is a popular configuration for small to mid sized vessels where equipment space is at a premium.
Portable System
A portable Rainman consists of two components. A pressure supply unit (PSU) and a reverse osmosis (RO) unit. The PSU lifts water, filters it and puts the clean seawater under pressure, while the RO unit extracts fresh water from the pressurised seawater stream, returning most of the water and all of the salt back to the sea.
This is a convenient option for those that wish to avoid an installation process, only keep their watermaker onboard for occasional trips, or share the system with a friend or another vessel.
Framed System
For larger vessels with more space available, the Framed configuration makes for an easier installation process. Most of the plumbing is internal to the system, so fewer external hookups are required. This configuration is available in either the manual control panel with autoflush or the fully automated system with wired remote micropanel and phone app.
The larger 240 litre per hour (63 gph) Torrent system is only available in this Framed configuration.
Control Options
Depending on which format system you purchase, there are various options for controlling your AC electric Rainman.
The Rainman AC electric systems can be purchased and installed on its own with only a simple valve/gauge assembly to control pressure. However, most customers will prefer to add either the manual or fully automated control panel options for a more convenient user interface.
Minimalist Control Assembly
The basic Modular Rainman watermakers will arrive with a simple valve/gauge assembly to control pressure. This is to be mounted in a convenient location and take up barely any space. A separate product water flow meter can be mounted vertically nearby.
Optionally, you can install the autoflush system to assist in the flushing process.
Manual Control Panel with Autoflush
The manual control option provides a convenient interface for your Rainman framed watermaker. It’s a highly presentable and functional component that will enhance your Rainman user experience.
While being manually controlled, some electronics convenience features assist in system operations.
- Autoflush function triggers flush cycle after powering the watermaker off and every seven days thereafter
- Built in tri-colour LED salinity sensor indicates when water is good to route to your tank
Fully Automated Control Panel
For a more luxury experience, the fully automated system incorporates significant convenience features while ensuring maximum reliability.
- Wired remote micropanel for full control at your nav station.
- Bluetooth connect phone app (iOS or Android)
- Timer function or set litres to be made
- Full pressure control
- Water diversion sending only good water to tank
- Manual backup in rare case of any sensor or electronics issue
Optional Accessories
While the base system will be sufficient for many customers, a number of options are available to get more out of your Rainman watermaker.
- The plumbing installation kit is included with the Modular or Framed Rainman systems, but can also be a very useful option if you plan to install your Portable Rainman units.
- A hydrotester will give you indication of the total dissolved solids (TDS) so you can know how your membranes are ageing.
Spares and Consumables
Your new Rainman system will arrive with enough spares and consumables to keep you going for a while, so most customers do not need to order more with initial purchase. There are a variety of items you will need over time to keep your system running for many years.
Specifications Comparison Table
The following table compares the specifications of the different Rainman AC electric systems. It also has the option to bring other types of Rainman systems into the comparison.
Use “Select Columns” to choose systems for comparison.