Automist Smartscan Hydra
®
DIOM Manual - version 3.01.0
Plumis Ltd Copyright © 2020. All Rights Reserved.
Page 60 of 116
S MA RT SC AN
®
Figure 51: Electrical Connection Diagram - 2 sprayhead system with a wireless and wired detector
The intention of the first fix is to set up and verify the water supply and power supply to the pump and
install the high-pressure hose(s), data cables and the electrical cables. This must be completed following the
layout plan which has been preapproved with the Authority Having Jurisdiction, so the installation and
commissioning can be completed with the system set up as it would be in service.
Figure 52: First Fix Setup
Install a 3/4” water supply (connection) with a WRAS approved isolation valve positioned so that the
connection point will not be obstructed when the pump is installed. The cold-water supply must deliver
adequate flow and pressure. Otherwise a priority valve or a booster pump may need to be used. An outside
pipe diameter of less than 28mm is a good indicator that a survey is required. Verification of the flow and
pressure provided by the specific ¾” water supply pipe is required. Photographs are recommended with the
measuring equipment in place:
•
Minimum 8 litres per minute flow
•
1.5 – 6 bar pressure static water pressure
IMPORTANT!
Before installation ensure the hoses are in line with Plumis guidelines. See Hoses, Piping and
for high pressure hose specification on page 45. The maximum total length of high-pressure hoses is 60 m.
The maximum allowable hose with a nominal diameter of ¼” is 20 m, and maximum allowable hose with a
nominal diameter of 5/16” is 40 m when the two hose types are used in combination, with the total length
not exceeding the 60 m limit. A 5/16” only installation may have a maximum length of 50 m.
24 volt wired detectors shall
be connected to the
corresponding head with fire
protected cable
Controller
location
Pump
location
Data cable
High pressure
hose
Water
supply
Data cable
Alarm cable
Accessible plumbing joints
Alarm/Detector bases located
less than 5m away from the
prospective head location
