Hughes Safety Showers MH14KS350 Manual

Installation, Operation and Maintenance Instructions
Warranty Information
Hughes Safety Showers Ltd guarantees the products it manufactures or sells against defects in workmanship and material for a period of one
(1) year from the date of shipment or date of invoice, whichever is later. The product must be used, maintained and installed according to the
instructions and procedures provided, or this warranty is void. Any alteration or modication of the product will also void this warranty. Hughes
Safety Showers obligation under this warranty is limited to repair or replacement of defective products. No other warranty or remedy shall be
provided. This warranty specically does not guarantee or cover payment or reimbursement of any damages or consequential damages other
than repair or replacement of the product.
Any claim under this warranty must be made in writing within twelve (12) months of the date of shipment or the date of invoice, whichever is later.
The owner must prepay shipping costs of all products returned to Hughes Safety Showers Ltd under this warranty. If it is determined that the
product is defective in material and /or workmanship the repair or replacement will occur, at Hughes Safety Showers option, at no charge and
return freight prepaid by Hughes Safety Showers. All other return of the product to the owner shall be at the owner’s expense.
Proper use by the customer is necessary for the e󰀨ectiveness of the product, as well as the safety of those using the same. The user is solely
responsible to determine the suitability of any Hughes Safety Showers product for any intended use. The user assumes all risk and liability for
use of any Hughes Safety Showers product. User specically acknowledges receipt of proper instructions regarding the use of the product in
the original packaging and disclaims any consequential damages to person or property, damages for loss of use, lost time, loss of prot, lost
income, loss of the Hughes Safety Showers product itself and/or other incidental or consequential damages other than as warranted by this limited
warranty. User accepts the responsibility of removing from service any product that becomes worn out, unusable, unt for the intended use or
defective in any way such as to make the product a potential safety hazard. Hughes Safety Showers is unable to undertake such obligations or
responsibilities on behalf of the user as the user is in sole possession and control of the product.
Emergency Tank Showers
• Immersion Heated (including Polar)
MH14KS350
MH14KS1200
MH14KS1200P
MH14KS2000

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General Considerations
When planning the installation of emergency safety showers and eye/face wash equipment, the advice of a qualied rst
aid representative or medical advisor should be sought to establish the most suitable location and procedures for rst aid
and decontamination.
Installation should be in accordance with local legislation and industry standards such as ANSI Z358.1-2014
recommendations. Visit www.hughes-safety.com/standards for more information.
• Emergency safety showers and eye/face wash equipment must be installed within 66 feet, or 10 seconds reach
of, and on the same level as, a potential hazard. Where strong acids or caustics are used, equipment must be
immediately adjacent to the hazard and outside of any spray paths.
• Equipment must be in a prominent position, free from any obstructions and clearly visible.
• Adequate drainage should be available in the area around and underneath the safety shower or eye/face wash.
Consideration should be given to the placement of equipment in the vicinity of the safety shower that are sensitive
to water or diluted chemicals, notably electrical items.
• For equipment located indoors, wastewater must be contained for subsequent safe disposal or there must be
adequate drainage. Procedures must be in place for cleaning residue water after safety shower use.
• Loose objects or gravel should not obstruct the operation of the shower where walk-on foot panels or foot treadles
are tted.
• An ISO 3864.1 compliant safety sign should be displayed on or near the safety shower or eye wash. The sign
should be well positioned so it is visible to all within the hazardous area.
• The area must always be well lit with the operating mechanism remaining clearly visible.
Installation and Commissioning
Equipment must be mounted to a suitable level surface using bolts of a length and type to suit the base material.
Please refer to the general arrangement drawings for position of xing bolt holes.
Once mounted, the stability should be tested to ensure it is safe and poses no danger to the user.
Location & Accessibility
Visibility
Assembly and mounting
Once assembled, the shower rose, and eye wash di󰀨users should be removed during initial ushing.
All pipework should be ushed prior to connection to clear the line of all installation debris.
The shower should be activated to ensure proper operation.
Care must be taken not to over-tighten the shower rose, nozzle or eye wash di󰀨users when replacing after ushing.
CAUTION: For units with electrical heating, it is essential that a water supply is established, and the equipment is
checked before connection to an electrical supply.
Installation of safety showers

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Emergency safety showers and eye/face wash equipment must be fed from a potable water supply – drinking water or water
of a similar quality.
Minimum Supply Pressure: 7 PSI (0.5 Bar)
Maximum Supply Pressure: 101 PSI (7 Bar)
Where a high unregulated pressure is experienced, this must be monitored to ensure it does not exceed the recommended
maximum. If the water pressure exceeds the recommendations, please contact Hughes Safety Showers for advice.
The water supply pipe must be of a material compatible with the safety shower and/or eye/face wash equipment to avoid
corrosion.
The supply pipe should have at least the same diameter as the inlet pipe on the equipment.
If required, the supply pipe should be tted with a non-return check valve.
Minimum ow rates must be in accordance with International standards, namely ANSI Z358.1-2014.
Water inlet size: Please refer to your general arrangement drawing for details.
Good practice: Fit isolation valves to the supply pipes in an accessible position for use during maintenance. These valves
should have locking mechanisms to prevent unauthorised shuto󰀨 and be labelled accordingly with xed permanent tags.
Installation of eye and eye/face washes
Water supply and supply pipe materials
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 specic electrical drawings.
Electrical equipment tted 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. Before working on the units power must be turn o󰀨.
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.
Prior to initial operation it is advisable to remove the “Y” strainer lter basket, where tted, along with the di󰀨users to ensure
they are free of any debris. Once retted, test to verify proper operation. (see g. 1 and g. 2)
Once the Y strainer head is removed, using a 22mm box spanner or socket, the gauze lter can also be removed and
cleaned. (see g. 1)
If necessary, the ow rate of the eye/facewash di󰀨users be adjusted via the three-pronged regulator or using the grub
screws on each side of the tee-piece in the centre of the eye/facewash bowl. A 4mm allen key will be required for this
adjustment. (See g. 3)
Fig. 1
Fig. 2 Fig. 3

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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.
Electrical rating (for hazardous and non-hazardous version): 110V, 1 phase, 60Hz, 1.7kW
220V, 1 phase, 60Hz, 2.5kW
Di󰀨erent voltage versions (three phase - single phase) are available upon request.
Electrical details
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 tted):
• Walk on foot panel
• Push activated panic bar
For optimum safety, the valves remain open when activated and must be shut o󰀨 manually.
Eye and eye/face wash activation methods (where tted):
• Lift lid
• Foot treadle
Maintenance
Regular servicing and maintenance of emergency safety shower and eye/face wash equipment is essential to ensure
correct functionality. All services and weekly activations must be recorded to ensure a full history is maintained as per
European and International standard requirements.
Weekly activation
All equipment should be visually inspected and activated at least once a week to ensure it is operating properly, to clear
the line of any sediment build up and check that the water runs clear.
Where tted, the external test handle can be used for ease.
Please visit www.hughes-safety.com/weekly-activation to download the checklist and video detailing what to look out for to
remain compliant.
Servicing and cleaning
Hughes recommend equipment be serviced and cleaned regularly, and at least every 6 months. To purchase spare parts call
us on (1) 866-312-1652 or email [e-mail]
Periodic analysis of the water quality is recommended to ensure there is no build-up of harmful bacteria.
Regular cleaning of the outside of the emergency equipment is recommended. Abrasives or solvents must not be used to
clean the unit as this can damage the surface or a󰀨ect the instruction stickers.

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Servicing and cleaning (continued)
Safety showers:
• Remove the shower head periodically to clean, disinfect and ensure any build-up of debris or bacteria is removed.
• Remove the shower rose and replace after ushing.
Tank Showers:
Tank showers should be internally disinfected to combat legionella and other bacteria growth.
• The water supply is isolated, the shower rose and lter is removed and placed in a container of 50 PPM dissolved
Free Chlorine for 1 hour.
• The lid is removed and the tank is cleaned then relled with clean water. Chlorine release agent is added to the water
to gain 50 PPM of Free Chlorine for 1 hour.
• The eye bath is operated to hold chlorinated water in the feed line. After being left for one hour, the system is emptied
and ushed with clean water before being relled. The rose and lter are replaced.
Eye and eye/face washes:
• The ne mesh strainers should be cleaned regularly, particularly in the rst 6 months of service as there may be
contamination of the water from dirt, jointing compounds, etc. which may have remained in the pipework following
installation, despite the recommended ushing procedure.
• Nozzles should be cleaned regularly; the frequency will depend on the ambient conditions of the installation.
• Di󰀨users can be unscrewed for cleaning.
• To clean the ‘Y’ strainer lter basket remove the strainer housing using a 22mm socket. The lter basket can be
found inside the housing and can easily be removed for cleaning. To ensure hygienic operation, the di󰀨users and
lter baskets should be replaced if they become excessively dirty or damaged.
• After any cleaning or maintenance work has been carried out on the equipment it is imperative that the eye and
eye/face washes are given a full operational test and any ow regulator or volume control screws are re-adjusted
to ensure optimum performance. It is recommended that eye wash di󰀨users are replaced every six months.
Electrical equipment:
• Thorough visual inspections should be carried out to check for external damage to the electrical units, their cables
or the junction boxes. Should any part be found to be damaged, this must be reported and repaired or replaced
as soon as possible. A further test should be carried out to establish that it functions as intended. Any additional
electrical tests should be carried out at the discretion of a qualied electrician.
Out of Service Procedure
In the event of an emergency safety shower, eye bath or eye/face wash unit being temporarily out of service, a standard
procedure should be followed.
• Place a sign on the unit indicating it is ‘Out of Service’.
• Notify the relevant manager/supervisor of the area that the unit is out of service
• Prohibit or suspend any work where there is a signicant hazard requiring use of the unit
• If work cannot be prohibited or suspended, a portable unit must be provided to supply the initial wash only, after
which it will be necessary to move the person to a plumbed emergency safety shower, eyebath or eye/face wash
unit to complete the procedure.
Note: Portable units are not acceptable as a long-term substitute for permanent locations.
A selection of our emergency safety showers are available to hire. Ensure your workforce are protected around
the clock, visit www.hughes-safety.com/us/rentals for more information.
If you require further assistance please contact us:
T: (1) 866-312-1652
E: [e-mail]