Rinnai RUS-51FT Instructions Manual page 6

WARNING
The plastic control adaptor helps to prevent spurting of
boiling water, DO NOT remove it when using this heater for
boiling water.
Do not adjust the plastic outlet tube of the heater while the
water is boiling. The tube is HOT.
Return the temperature control to a lower setting after use
to avoid the risk of burns.
KITCHEN SHOWER USE:
Turn the changeover switch on the shower head to 1 for a
straight water flow and to 2 for a shower flow as shown.
Always use the straight out flow for high temperature
requirements.
WARNING: Do not forcefully bend the shower head, it may
cause leaks or a bent pipe. Do not take off the shower
head for using hot water as spray may cause burns.
TO DRAIN THE HEATER
(if freezing conditions are expected).
1. Turn the water and gas off at the control valves.
2. Change the shower to the straight mode and bend the
outlet tube straight.
3. Turn the temperature control to the middle " COLD"
position.
4. Loosen the drain plug, then take out the water filter
and drain all water.
5. Turn the control knob to cold, and leave the water
valve and water filter off, until next used.
When the control knob is difficult to turn or can not be
positioned to " high" it is frozen. Do not use the unit until it
has defrosted. When next in use, close the drain valve and
replace the filter, turn the control knob to " high" , open the
water valve and confirm water flow. Check that water stops
when turned off. Turn the control knob to " low" and open
gas valve before reusing.
SHOWER
STRAIGHT
1 2
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