Installation manual
ß
Closed manual valve
(“OFF” position)
Open Manual valve
(“ON” position)
®
24
Rinnai America
FF Models
To Turn Off Gas To Appliance
1) Set the thermostat to lowest setting.
2) Turn off all electric power to the appliance if service is to be performed.
3) Turn the manual valve at gas inlet of appliance clockwise
to “OFF”
O P E R A T I N G I N S T R U C T I O N S
inlet of appliance counterclockwise
to “ON”.
8) Turn on all electric power to the
appliance.
9) Set thermostat to desired setting.
10) If the appliance will not operate,
Follow the instructions “To Turn Off
Gas To Appliance” and call your
service technician or gas supplier.
1) STOP! Read the safety information above
before proceeding.
2) Set the thermostat to lowest setting.3)
Turn off all electric power to the appliance.
4) This appliance does not have a pilot. It is
equipped with a direct ignition device which
automatically lights the burner. Do not try to
light the burner by hand.
5) Turn the manual valve located at gas
inlet of the appliance clockwise
to “OFF”.
6) Wait 5 minutes to clear out any gas. If
you then smell gas, STOP! Follow “B” in
the safety information above on this label.
If you don’t smell gas, go to next step.
7) Turn the manual valve located at the gas
C A R E & L I M E C O N D I T I O N W A R N I N G
Care of Unit’s Exterior:
Keep the exterior cabinet clean. Use a soft cloth and warm water when cleaning the cabinet.
Do Not use volatile substances such as benzene and thinners, as they may ignite, or cause
fading of the paint.
Lime Condition Warning Signal:
If you notice “LC” ashing on the remote key pad, this means the unit is beginning to lime up,
and MUST be ushed. Contact a qualied Rinnai service technician to ush the appliance.
Failure to ush the appliance when “LC” is ashing, will cause damage to the heat exchanger.
Damage caused by lime build up is not covered by the unit’s warranty. To reset the LC Fault
Code, turn the power off to the unit. Once power is restored, the LC code will be reset.
Water Quality:
Consideration of care for your water heater should include evaluation of water quality. If the water
quality exceeds the target levels provided in the table, you may want to treat or condition the water.
Description
pH
TDS
(Total
Dissolved Solids)
Total
Hardness
Aluminum Chlorides Copper Iron Manganese Zinc
Maximum
Levels
6.5 to 8.5
Up to
500 mg/L
Up to
200 mg/L
Up to
0.2 mg/L
Up to
250 mg/L
Up to
1.0 mg/L
Up to
0.3 mg/L
Up to
0.05 mg/L
Up to
5 mg/L