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REQUIRED MAINTENANCE PROCEDURE

To Be Performed by Qualified Personnel

MONTHLY CHECKS

M1) Ensure main circuit breaker is on.

M2) Open outlet valve(s) to run water thru unit.  Ensure that the

minimum flow rate to switch on your heater is met, for this
figure refer to the front cover of this manual.

M3) Check outlet temperature for desired setting.

QUATERLY CHECKS

Q1)  Turn off main circuit breaker.  

Q2) Remove front cover from heater.

Q3) Inspection of heater bodies and distribution manifold for

water leaks.

Q4) Inspection of fuses (50 amp each)

Q5) Inspection of 12 heater elements (see page 10 for element ohms)

Q5) Inspection of coarse inlet filter screen is clear from any debris.

Q6) Turn on main circuit breaker 

(note: unit has live electrical)

Q7) Carefully perform steps M1 thru M3 with cover removed, observe

each module for an indicator light.

Q8) Turn off circuit breaker

Q9) Install front cover, then turn on main circuit breaker.

9

Summary of Contents for ED079480T12EDS

Page 1: ...ILITIES PLEASE TAKE THE TIME TO READ NOT ONLY THIS MANUAL BUT ALSO THE WARRANTY CARD ENCLOSED WARRANTY OF THIS HEATER WILL DEPEND ON PROPER INSTALLATION OPERATION AND REQUIRED MAINTENANCE THE WARRANTY SHALL BE VOID IF THE DESIGN ORSTRUCTURE OF THE WATER HEATER HAS BEEN ALTERED IN ANY WAY WHATSOEVER THE MANUFACTURER OF THIS WATER HEATER WILL NOT BE LIABLE FOR ANY DAMAGES BECAUSE OF FAILURE TO COMPL...

Page 2: ...6 ED096480T12EFD 480 96kW 116 ED108480T12EFD 480 108kW 130 ED126480T12EFD 480 126kW 152 ED138480T12EFD 480 138kW 166 EFD Eye Face Drench For combination Eye Face Drench Shower First stage minimum activation 4 gpm 1 2 kW rating Second stage activation 15 gpm full power MODEL NUMBERS COVERED ...

Page 3: ... debris before fitting the heater otherwise the flow switches could jam in the on position The unit must be connected to its own individual electric circuit protected by a suitably rated three pole breaker The maximum voltage which can be applied across any heating module is 480 volts WARNING Improper installation adjustment alteration service or maintenance can cause DEATH SERIOUS BODILY INJURY O...

Page 4: ...ve draw off of cold water just before the unit Also do not fit an unrestricted hot water draw off point below the heater as this will tend to empty the heater by siphoning 3 NOTE ALL MOUNTING AND PLUMBING MUST BE COMPLETE BEFORE YOU PROCEED WITH ELECTRICAL HOOK UP TEST THE INSTALLATION FOR LEAKS BEFORE CONNECTING THE ELECTRICAL SUPPLY Hazardous Locations Nonincendive Type Installation 1 The unit i...

Page 5: ... 3 Install isolating valves full flow ball valve type on both inlet and outlet pipes This allows unit to be isolated for maintenance purposes see Fig 1 4 When all plumbing is complete fully check the system for water leaks at all plumbing connections If leak is present take corrective action Fully open both inlet and outlet ball valves Run all hot water outlets fed by this heater one at a time for...

Page 6: ... appropriate rating protected by the correctly rated three pole breaker WARNING FAILURE TO GROUND THE SYSTEM MAY RESULT IN DEATH OR SERIOUS INJURY IMPORTANT BEFORE SWITCHING ON THE POWER AT THE MAIN CIRCUIT BREAKER PANEL MAKE SURE THAT THE HOT WATER CIRCUIT IS FREE OF AIR POCKETS OR PREMATURE FAILURE OF THE ELEMENT WILL OCCUR TO DO THIS OPEN ALL HOT WATER OUTLETS ONE AT A TIME FOR A MINUTE OR TWO ...

Page 7: ...h inlet and outlet BALL VALVES fully open turn on a hot water outlet 2 Run for 3 minute 3 Switch on electric supply at circuit breaker panel 4 The power indicator lights should now come on NOTE At this point water temperature may not be hot 5 Using the OUTLET BALL VALVE slowly reduce water flow until desired temperature is achieved at hot water outlet NOTE The water temperature is regulated by the...

Page 8: ...ont cover of this manual for the correct value If the resistance is much greater than the correct value call your supplier for a replacement element SYMPTOM NO HEAT OR LOW TEMPERATURE WITH INDICATOR LIGHT ON 1 WATER FLOW TOO HIGH Reduce the water flow by using an outlet ball valve See page 5 for temperature rise at various flow rates 2 INCORRECT POWER SUPPLY Make sure that the unit is connected to...

Page 9: ...1 Turn off main circuit breaker Q2 Remove front cover from heater Q3 Inspection of heater bodies and distribution manifold for water leaks Q4 Inspection of fuses 50 amp each Q5 Inspection of 12 heater elements see page 10 for element ohms Q5 Inspection of coarse inlet filter screen is clear from any debris Q6 Turn on main circuit breaker note unit has live electrical Q7 Carefully perform steps M1 ...

Page 10: ...80 VOLTS ON ANY ORDERS FOR ED079 PART EX3491 34 91 Ohms FOR ED096 PART EX2880 28 8 Ohms FOR ED108 PART EX2560 25 6 Ohms FOR ED126 PART EX2194 21 94 Ohms 10 THERMOSTATIC PCB PART EX100CV 480V SLAVE PART EX100S 480V TRIAC PART EX18 Contactor part EX08002 01 480 volts ...

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