American Water Heater HeavyDuty Surface Thermostat Commercial Electric STCE3150 80 119 User Manual

31
Restore Factory Defaults  
ACTION DISPLAY
From the Main Menu use the Up/Down buttons to select (highlight in black) 
the “Restore Factory Defaults” menu.
Press the Operational Button underneath “SELECT.” The Restore Factory 
Defaults menu will be displayed.
 
From  the  Restore  Factory  Defaults  menu  press  the  Operational  Button 
underneath “YES.” The display will show text confirming the factory default 
settings have been restored.
Press the Operational Button underneath “BACK” to exit the...

32
ANODE ROD INSPECTION
Each  water  heater  contains  at  least  one  anode  rod,  which  will 
slowly  deplete  (due  to  electrolysis)  prolonging  the  life  of  the 
water  heater  by  protecting  the  glass-lined  tank  from  corrosion. 
Adverse water quality, hotter water temperatures, high hot water 
usage,  hydronic  heating  devices,  and  water  softening  methods 
can increase the rate of anode rod depletion. Once the anode rod 
is depleted, the tank will start to corrode, eventually...

33
THE	PROCESS	FOR	LIME	SCALE	REMOVAL	IS	AS	FOLLOWS:
1.  Turn off electrical disconnect switch.
2.  Drain the heater following DRAINING instructions.
3.  Open front panel.
4.   Disconnect  the  element  wiring.  Try  not  to  disturb  the  wiring 
unnecessarily and reconnection will be easier.
5.  Unscrew each element.
6.  Remove the elements and gaskets from the openings.
  •  Use a twisting, pulling action to remove elements scaled beyond  
  the size of the tank openings.
  • Brush loose scale from...

34
TROUBLESHOOTING CHECKLIST
CHECKLIST
Before  calling  for  service,  check  the  following  points  to  see  if  the 
cause of trouble can be identified and corrected.
Reviewing this checklist may eliminate the need of a service call and 
quickly restore hot water service. See Figure 2 and Figure 3 in this 
manual to identify and locate water heater components.
NOT ENOUGH OR NO HOT WATER
1.  Be  certain  the  electrical  disconnect  switch  serving  the  water 
heater is in the ON position.
2.  Check...

35
LEAKAGE CHECKPOINTS
INSTRUCTIONS:	USE	THIS	 ILLUSTRATION	 AS	A	GUIDE	 WHEN	CHECKING	 FOR	SOURCES	 OF	WATER	 LEAKAGE.  
All  water  which  appears  at  the  heater  bottom  or  on  the 
surrounding  floor  may  be  caused  by  condensation,  loose 
connections  or  relief  valve  operation  and  leakage.  Do  not 
replace  the  heater  until  a  full  inspection  of  all  potential  leak 
points  is  made  and  corrective  steps  taken  to  stop  the  leak. 
Leakage from other appliances, water lines,...

36
PIPING DIAGRAMS
 N
OTES:
1 .  Pref erred  piping  diagram.
2 .  The t emperat ure and  pressure  relief valve  setting  shall not exceed  pressure  rating  of  any  component  in the  syst em.
3 .  Servic e v alv es  are s hown f or serv icing  unit. However , local  codes  shall govern t heir usage.COMMER CIAL ELECTRIC  - (1 UNIT)
LEGEND
TEMPERATURE & PRESSURE
RELIEF V ALVEPRESSURE RELIEF V ALVECIRCULA TING PUMPTA NK  TE M PER AT URE CO NTR O LDRAIN
FULL  POR T BALL  VALVETEMPERA TURE GAGEW ATER FLOW...

37
PIPING DIAGRAMS
NOTES:
1 .  Pref erred  piping  diagram.
2 .  The t emperat ure and  pressure  relief valve  setting  shall not exceed  pressure  rating  of  any  component  in the  syst em.
3 .  Servic e v alv es  are s hown f or serv icing  unit. However , local  codes  shall govern t heir usage.
4 . T he  Tank  Temperat ure Cont rol should  be wired t o and  control the pump  between t he wat er heat er(s)  and the storage t ank(s).
5 . T he  wat er heat er’s  operat ing thermost at  should  be set...

38
PIPING DIAGRAMS
NOTES:
1 .  Pref erred  piping  diagram.
2 .  The t emperat ure and  pressure  relief valve  setting  shall not exceed  pressure  rating  of  any  component  in the  syst em.
3 .  Servic e v alv es  are s hown f or serv icing  unit. However , local  codes  shall govern t heir usage.
4 . T he  Tank  Temperat ure Cont rol should  be wired t o and  control the pump  between t he wat er heat er(s)  and the storage t ank(s).
5 . T he  wat er heat er’s  operat ing thermost at  should  be set...

39
PIPING DIAGRAMS
NOTES:
1 .  Pref erred  piping  diagram.
2 .  The t emperat ure and  pressure  relief valve  setting  shall not exceed  pressure  rating  of  any  component  in the  syst em.
3 .  Servic e v alv es  are s hown f or serv icing  unit. However , local  codes  shall govern t heir usage.COMMER CIAL ELECTRIC  - (2 UNITS)
LEGEND
TEMPERATURE & PRESSURE
RELIEF V ALVEPRESSURE RELIEF V ALVECIRCULA TING PUMPTA NK  TE M PER AT URE CO NTR O LDRAIN
FULL  POR T BALL  VALVETEMPERA TURE GAGEW ATER FLOW...

40
PIPING DIAGRAMS
NOTES:
1 .  Pref erred  piping  diagram.
2 .  The t emperat ure and  pressure  relief valve  setting  shall not exceed  pressure  rating  of  any  component  in the  syst em.
3 .  Servic e v alv es  are s hown f or serv icing  unit. However , local  codes  shall govern t heir usage.
4 . T he  Tank  Temperat ure Cont rol should  be wired t o and  control the pump  between t he wat er heat er(s)  and the storage t ank(s).
5 . T he  wat er heat er’s  operat ing thermost at  should  be set...