Vent  Inspection; Burner  Inspection; Extended  Shut-­Down - Rheem AP15317 Use And Care Manual

Direct vent gas tankless water heater
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Burner  Sight  Glass
NOTICE:  Refer  to  the  
Freeze  Protection  Section  
on  page  30.
!
CAUTION:  Do  not  
operate  without  the  
condensate  trap  connected  to  
the  drain  fitting  and  routed  
to  the  proper  drain.
AP15317 (10_09) DV Gas Manual 10 30 09.indd 29
Housekeeping,  continued
CLEANING  THE  WATER  HEATER   A ND  
REMOTE  CONTROL(S):
G     Make  sure  the  unit  is  OFF  and  the  
electrical  power  supply  has  been  
disconnected.
G     DO  NOT  scrub  the  appliance  with  a  
brush.
G     Use  only  mild  soapy  water;;  other  
cleaners  may  damage  the  surface  of    
the  water  heater.
Venting  System  Inspection  
The  venting  system  of  a  direct  vent  water  
heater  should  be  inspected  annually  to  ensure  
all  of  the  vent  sections  are  secure  and  air-­
tight.
It  is  recommended  that  qualified  service  
personnel  familiar  with  Category  III  venting  
inspect  the  venting  system.
Burner  Inspection
Visually  inspect  the  main  burners  annually.
Through  the  front  sight  glass,  inspect  the  
burner  flame.  Blue  flames  should  be  seen  
when  the  main  burner  is  firing.  See  the  figure  
on  the  left  for  location  of  sight  glass.
If  any  unusual  burner  operation  is  noted,  the  
water  heater  should  be  shut  off  until  qualified  
service  assistance  can  be  obtained.
Vacation  and  Extended  Shut-­Down
If  the  water  heater  is  to  remain  idle  for  an  
extended  period  of  time,  the  power  and  water  
to  the  appliance  should  be  turned  off.
The  water  heater  and  piping  should  be  
drained  if  they  might  be  subjected  to  freezing  
temperatures.
Condensate  Trap  Inspection
On  a  regular  basis,  inspect  the  condensate  
trap  to  ensure  there  is  enough  water  in  the  
trap  and  the  condensate  is  draining  properly.
G     DO  NOT  remove  any  label  including  the  
rating  plate  while  cleaning  or  servicing.
G     DO  NOT  splash  water  on  the  remote  
controls  when  cleaning.
DO  NOT  operate  the  unit  if  vent  system  
shows  signs  of  leaking  exhaust.
Check  to  make  sure  that  the  air  intake  and  
vent  outlet  on  the  termination  has  not  been  
blocked  or  contain  debris.
!
CAUTION:  For  your  safety,  burner  
inspection  and  cleaning  should  be  
performed  only  by  qualified  service  
personnel.
For  cleaning,  a  vacuum  cleaner  can  be  used  
on  the  burner.
After  a  long  shut-­down  period,  the  water  
heater's  operation  and  controls  should  be  
checked  by  qualified  service  personnel.    
Ensure  that  condensate  is  disposed  of  per  
local  codes  and  regulations.
29
11/9/2009 3:10:32 PM

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