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If necessary, the flow rate of the eye/facewash diffusers be adjusted via the flow regulator
knob on the side of the eyewash(See fig. 1)
Installation of eye and eye/face washes
Fig. 1
Electrical supply
Where an emergency safety shower, eye or eye/face wash unit requires an electrical supply, either for heating, cooling,
alarms or lighting, then the supply should conform to the requirements as detailed in the job specific electrical drawings.
Electrical equipment fitted to these units should be supplied through a safety protection device (MCB, RCD, RCCB
for example) to provide additional protection against electric shock while also ensuring satisfactory protective bonding
arrangements are in place.
Installation, commissioning and maintenance of any electrical equipment should be completed by a qualified electrician
in compliance with all national and local codes. Before working on the units power must be turn off. A disconnect switch
is recommended to safely interrupt power supply to the unit. Disconnect switches are in the customer scope of supply or
available as an option from Hughes.
CAUTION: Safety showers for general purpose electrical areas cannot be used in hazardous areas, as per NFPA 70
and CSA 22.2. When making electrical connections be sure to follow all lockout-tag out safety procedures.
Electrical details
The electrical components of the shower are wired into junction boxes positioned as shown on the general arrangement
drawing. Wiring diagrams are provided with each shower and placed inside each junction box.
Pump rating:
3/4HP 120VAC/7.4A 60hz
Immersion heater:
1.7kW, 120V/15.5A 60hz
Supplied with level switch and proximity switches. 2 plugs for power connection to pump and heater
Operation
Employees working within hazardous areas must be trained in the use and location of emergency safety showers
or eye/face wash equipment. Instructions for all emergency equipment should be readily available and accessible
to personnel.
Safety shower activation methods (where fitted):
•
Push down lever
For optimum safety, the valves remain open when activated and must be shut off manually.
Eye and eye/face wash activation methods (where fitted):
•
Pull lid down
