American Water Heater 80 Thermal Efficiency UltraLow NOx Heavy Duty Commercial Gas Water Heater BCL3 User Manual

31
Chemical Hazard
• Product contains phosphoric acid.
• Keep out of reach of children.
• Use rubber or neoprene gloves.
UN•LIME  contains  phosphoric  acid.  In  case  of  external  contact, 
flush with cool water. If irritation persists, get medical attention. If 
swallowed, give 1 or 2 glasses of water or milk and call physician.
Get  immediate  medical  attention  for  eyes.  Keep  out  of  reach  of 
children.
NOTE: THE USE OF RUBBER OR NEOPRENE GLOVES IS 
RECOMMENDED, ESPECIALLY IF YOU HAVE ANY...

32
The installer may be able to observe and correct certain problems 
which may arise when the unit is put into operation. HOWEVER, 
it  is  recommended  that  only  a  qualified  service  agency,  using 
appropriate test equipment, be allowed to service the heater.
As  preliminary  step,  check  wiring  against  diagram,  check  for 
grounded, broken or loose wires.  Check all wire ends to be sure 
that they are making good contact.
IGNITION CONTROL SYSTEM
Before  calling  your  qualified  service...

33
Contact  the  local  water  heater  supplier  or  service  agency  for 
further  information  concerning  an  Anode  Replacement  Kit  and 
this chlorination treatment.
If hot water odor persists after anode replacement and chlorination 
treatment,  we  can  only  suggest  that  chlorination  or  aeration  of 
the water supply be considered to eliminate the water problem.
Do  not  remove  the  anode  rod  leaving  the  tank  unprotected.  By 
doing so, all warranty on the water heater tank is voided....

34
COMPLAINTCAUSE REMEDY
USER QUALIFIED SERVICE AGENCY
*Water not hot enough Thermostat set too low.Set thermostat dial to a higher 
temperature
Upper and/or lower temperature 
probe out of calibration. Call qualified service agency
Check continuity and resistance (Ohms) 
of upper and lower temperature probes. 
Replace probes if out of specification.
*Insufficient hot water
*See WATER TEMPERATURE 
CONTROL WARNING (on page 
12). Thermostat set too low.
Set thermostat dial to a higher 
temperature
Upper...

35
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 .  The  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 .  The  wat er heat er’s  operat ing thermost at  should  be set  5 degrees F...

36
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 .  The  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 .  The  wat er heat er’s  operat ing thermost at  should  be set  5 degrees F...

37
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 .  The  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).MULTI FLUE  - (1 UNIT) WITH MIXING  VAL VE  TWO  TEMPERA TURE
LEGEND
TEMPERATURE &...

38
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 .  The  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).MULTI FLUE  - (2 UNITS)
LEGEND
TEMPERA TURE & PRESSURE
RELIEF V ALVEPRESSURE RELIEF...

39
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 .  The  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 .  The  wat er heat er’s  operat ing thermost at  should  be set  5 degrees F...

40
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 .  The  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 .  The  wat er heat er’s  operat ing thermost at  should  be set  5 degrees F...