EemaX EX1080T12 Installation Manual And Owner'S Manual Download Page 16 | Manualshive

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Summary of Contents for EX1080T12

Page 1: ...ATION 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 COMPLY WITH THE INSTALLATION AND OPERATING INSTRUCTIONS OUTLINED ON THE FOLLOWING PAGES IF YOU REQUIRE ANY HELP OR HAVE ANY QUESTIONS RELATING TO THE IN...

Page 2: ...are clear of installation 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 277 volts WARNING Improper installation adjustment alteration service or maintenance can cause DEAT...

Page 3: ...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 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 3 Hazardous Locations Nonincendive Type Installation 1 The unit i...

Page 4: ...h 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 1A 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 f...

Page 5: ...MINIMUM 8 CLEARANCE ABOVE UNIT 5 Figure 1A serial MAIN TERMINAL BLOCK ELECTRICAL HOOK UP 480Y 277V 3Ø4W INLET OUTLET GND N L1 L2 L3 ...

Page 6: ...N DEATH SERIOUS BODILY INJURY OR PROPERTY DAMAGE IF YOU HAVE ANY QUESTIONS OR DOUBTS CONSULT YOUR ELECTRIC COMPANY This heater must have its own independent circuit using five wires three live one neutral and one ground of the appropriate rating protected by the correctly rated three pole breaker RATINGS OF EX THREE PHASE MODELS THIS UNIT MUST NOT BE CONNECTED IN DELTA CONFIGURATION 6 MODEL MAX OU...

Page 7: ... 0 6 2 15 32 96 116 145 150 9 0 EX1080T12 4 0 6 3 108 130 163 175 10 5 EX1260T12 250 6 3 5 8 126 156 195 200 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 UNTIL THE WATER FLOW IS CONTINUOUS AND...

Page 8: ...oint 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 flow through the heater The lower the flow the higher the temperature and vice versa MINIMUM SETTING MAXIMUM SETTING THE TEMPERATURE CONTROLLING POTENTIOMETER IS A PRECISION COMPONENT ADJUST GENTLY AND ...

Page 9: ...ure rise at various rates of flow see chart 8 It is possible that drawing off cold water at comparatively high rates of flow elsewhere in the building at the same time that the heater is working could cause premature element failure Care should be taken not to starve the unit of cold water To prevent this from happening open fully the main valve on the cold supply to the building and throttle back...

Page 10: ... supplier or Eemax for a replacement element 5 ECO TRIPPED High Limit Thermostat TURN OFF MAIN CIRCUIT BREAKER Reset by pushing in red button on each heater module 140 deg f units only SYMPTOM B 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 6 for temperature rise at various flow rates 2 INCORRECT POWER SUPPLY M...

Page 11: ... Q2 Remove front cover from heater Q3 Inspection of heater bodies and distribution manifold for water leaks Q4 Inspection of 12 fuses 50 amp each Class G Example Eemax p n EX198 Ferraz AG50 or Bussman SC50 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 electrica...

Page 12: ...utomatic reset on models EE EF EFD 85 deg F HEATER CORE ASSEMBLY PLEASE SPECIFY 277 VOLTS ON ANY ORDERS FOR EX480 T12 PART EX1920 19 2 Ohms FOR EX720 T12 PART EX1280 12 8 Ohms FOR EX960 T12 PART EX960 9 6 Ohms FOR EX1080 T12 PART EX850 8 5 Ohms FOR EX1260 T12 PART EX730 7 3 Ohms FUSE EX198 USE CLASS G FUSES BUSSMAN SC50 FERRAZ AG50 6 Wire EX 100G 50 AMP 4 POLE CONTACTOR L1 L2 L3 N Contactor EX 257...

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