2
(1) Open a hot water
fi
xture and con
fi
rm that the Burner On lamp comes on, and that hot water is
ein roduced. ( f necessar re eat until the air in the as i in is led out).
White smo e ma e noticed from the e haust vent durin cold eather. Ho ever this is not a
malfunction of the unit.
f an 11 error code a
ears on the o eration anel turn the unit off and then ac on a ain
and then open a hot water
fi
xture again.
(2) Chan e the tem erature settin on the o eration anel
and chec that the ater tem erature chan es.
f the ater heater does not o erate normall refer to rou leshootin in the
eration anual.
* After the trial operation, clean the
fi
lter in the cold water inlet.
f installed ith a uic connect multi-s stem
urn the s stem o er
ith the remote controller.
• Slowly open a hot water
fi
xture and check that the units ignite sequentially. Check to see that the
hot ater tem erature is the same as the tem erature dis la ed on the o eration anel ( 1)
* If both units do not ignite, switch which unit will ignite
fi
rst by pressing the Max. or Min. Mani-fold
ressure Set utton on the circuit oard. ( 2)
* If an 11 or F11 error code
fl
ashes on the operation panel, hit the Power Button on the operation
anel off and on 2 -3 times.
f ( 1) and ( 2) cannot e done the uic Connect Cord ma not e ro erl connected.
Chec that the cord is ro erl connected.
13.
Maintenance
eriodicall chec the follo in to ensure ro er
o eration of the ater heater.
• The venting system must be examined periodically by a quali
fi
ed service technician to check for
an lea s or corrosion.
• The burner
fl
ame must be checked periodically for a proper blue color and consistency.
• If the
fl
ame does not appear normal, the burner may need to be cleaned.
• If the burner needs to be cleaned, it must be performed by a quali
fi
ed service technician.
• Do not obstruct the
fl
ow of combustion and ventilation air.
he ressure relief valve must e o erated once a ear to ensure that it is functionin ro erl and
there is no o struction. urn the o er off to the unit efore o enin the relief valve and ma e sure
that ater drainin out of the valve ill not cause an dama e.
f the relief valve dischar es eriodicall it ma e due to thermal e
ansion in a closed ater
s stem. Contact the ater su
lier or a local lum in ins ector on ho to correct this situation.
Do not lu the relief valve.
See
eration anual for further maintenance.
Warning:
here is a scald otential if the out ut tem erature is set too hi h.
Should overheatin occur or the as su
l fail to shut off turn off the manual as control valve to the a
liance.
Do not use this appliance if any part has been under water. Immediately call a quali
fi
ed service
technician to ins ect the a
liance and to re lace an art of the control s stem and an as control
hich has een under ater.
Periodically check and clean the
fi
lter inside the cold water inlet of the unit.
14.
Trial Operation
he installer should test o erate the unit e lain to
the customer ho to use the unit and ive the o ner
this manual efore leavin the installation.
Unit nites
Unit
Doesn t nite
ress a .
or in. anifold
ressure Set utton on Unit
Unit
Doesn t nite
Unit nites
• Preparation ........... (1) Open a hot water
fi
xture to con
fi
rm that water is available, and then close
the
fi
xture.
(2)
en the as su
l valve.
(3)
urn on the o er su
l . Usin the remote controller turn on the o er
n
ff utton (the
eration lam ill turn on).
