Rinnai RHFE-557FT User manual

How to
Space
Rinnai
Energysaver
RHFE-557FT
Customer
-page 3
Installer
tipage 21
use vour
Heaier
Guarantee
Layout of appliance /
Features
Safety Points
Operation
Adjusting Temperature
Economy Mode
Child-Lock
Humidifier
Clock
ON/OFF Timers
Override

IMPORTANT
This appliance shall be installed in accordance
with:
@ Manufacturer’s Instructions
e Local Authority Building Codes
+ NZS 5261 Installation Code for Gas Uurning
Equipment
l Any other relevant Statutory Regulation
This appliance must be installed, serviced and
removed by an authorised person.
GUARANTEE
DEAR CUSTOMER
THANK YOU FOR PURCHASING THIS RINNAI APPLIANCE. WE ARE PLEASED TO ADVISE THAT
RINNAI PRODUCTS ARE NOW COVERED BY A 2 YEAR. GUARANTEE: FREE PARTS AND
LABOUR FOR THE FIRST YEAR AND PARTS ONLY FOR THE SECOND YEAR.
-THIS GUARANTEE IS IN ADDITION TO ANY GUARANTEES WHICH
CONSUMERS MAY HAVE UNDER THE CONSUMER GUARANTEES ACT -
SHOULD YOU HAVE ANY QUERIES REGARDING THIS GUARANTEE PLEASE CONTACT YOUR
LOCAL RINNAI AGENT.
Please record below the following information for your own records.
Your Retailer:
Address: Phone:
Date of Purchase:
Your Installer: Installer’s Licence No.
Address: Phone:
Date of Installation:
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3
A”
GETTING TO KNOW YOUR NEW RHFE-557FT
1
LOUVRE / CONTROL PANEL
IHUMIDIFIER TRAY
Built Into the warm
air dtscharge duct
Humldifles the warm
air flow.
A-/
here
“II”upIJ,,u,IL,LLI
codes are shown
( tray.
AIR FILTER 1
Helps to protect the
Interior of the
AIR INLET TUBEAIR INLET TUBE
Carries air forCarries air for
combus~oncombus~on
ROOM
TEMPERATURE
SENSOR I--
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I
P
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TIMER INDICATOR
Indicates that Trmer 1 or
lndrcates Chrld Proof Trmer 2 has been
selected to operate.
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ECONOMY INDICATOR
TlME/TEMP DISF‘LAY
Shows either the trme of day,
Temperatures, or coded error
messages.
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OVERRIDE INDICATOR
lndrcates that the
Economy mode IS In Indicates that the
WWER ON/COMBUSTION INDICATOR
timer programme is berng set.
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Child Lock Economy Timer 1 Timer 2 Override I \
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OVERRIDE
Temporarily changes operation from
ON toOFF or OFF to ON, untrl next
programmed setting IS reached. Timers for adjustrng or
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FEATURES
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FORCED FLUE SYSTEM PUSH BUTTON IGNITION
Air for combustion is taken from outside
the room and the flue products are
exhausted outside, keeping the room air
clean.
Only one touch of the ON/OFF switch is
required to operate the heater.
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WARM AIR DISCHARGE
Warm air flows from the bottom of the
appliance through the Iouvres, assisting
in even heat distribution. An integral
humidifier tray is built into the warm air
discharge duct.
L (See page 9)
1
DUAL ON/OFF TIMER
The Dual Timer allows you to programme
the appliance to come on for two separate
periods each day, usually one period in
the morning, and one period in the evening.
The built in Intelligent Mode brings the room
temperature to the temperature you have
selected, by the time programmed into the
Timer.
PRE-HEAT
The function will automatically operate the
appliance within one hour prior to the
programmed time of the Timer. This is
designed to heat a room to the pm-set
temperature by the programmed time.
(See page 16)
The Dual Timer feature means that you can
“Set and Forget” your heater. It will turn
itself ON and OFF at times you have
programmed until you cancel the Timer
program.
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FEATURES
I
FILTER INDICATOR AUTO COMFORT
When the fan filter becomes covered with Ensures that the flow of warm air from the
dust and the temperature inside the louvres is maintained at a comfortable
appliance rises, the filter indicator will volume during the warm-up period by a 7
flash. The filter should be vacuumed at step modulating convection fan, in
regular intervals to avoid unnecessary conjunction with the thermostat, reducing
strain on the appliance. cool draughts.
ECONOMY MODE
This is an energy saving feature designed
to reduce the room temperature to 1°C
less than the pre-set temperature over a
period of 30 minutes, and an additional
1% after another 30 minutes.
i--- 4
1 hour
f MEMORY
The micro-computer records selected pre-
set temperatures, the times programmed
into Timers as well as operating the
Economy and Intelligent modes, to
maintain comfort levels.
(See page 11)
CHILD PROOF LOCK
When the Child Proof lock is activated all
controls other then the OFF switch will be
locked. De-activating the lock releases the
controls. If the lock is activated when the
appliance is off, all functions will be locked.
(See page 11) /
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7
SAFETY POINTS
Do not restrict the warm air discharge This appliance must not be used for any
by placing articles in front of the heater. purpose other than heating.
10 not spray aerosols whilst the heater is
operating. Most aerosols contain butane
las, and can be a fire hazard if used near
Flue guard is recommended where
children may be able to touch the flue
terminal.
Do not allow curtains or other
flammable or combustible materials to
come into contact with the heater.
Do not allow anyone to sit on or lean
against the appliance.
where the heater could ignite them.
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SAFETY POINTS
Keep tlammable materials, trees,
shrubs, etc, away from the flue
terminal.
Filter should be cleaned at regular
intervals. See Page 12.
Clean with vacuum cleaner, weekly.
Do not place articles containing liquids
on top of the heater. Liquids spilt on
the controls may cause extensive
Do not atfow anyone to post artic\es
through the louvres.
Young children should be supervised at
all times. Hand or body contact with the
louvres should be avoided.
Do not allow young children or the infirm to
sleep directly in front of the heater.
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9;,
OPERATtN~,Y0 NEW RHFE-557FT
n TO OPEN THE CONTROL PANEL
Lift lightly in the centre of the lid where there
is a catch. The control panel lid will then drop
backward to an angle.
n TURNING ON
Press the ON/OFF button to operate the
heater. The ON indicator will glow green.
After approximately 20 seconds the spark
generator will be heard before the burner
ignites and the ON indicator glows red,
indicating that the burner is alight. Warm air
can be felt coming from the louvres 15
seconds later.
If the heater does not ignite on initial use, this may be due to air remaining in the gas supply
line. The spark generator will only continue for 15 seconds. After this it will be necessary to
press the ON/OFF button OFF, then ON again.
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n TURNING OFF
Simply press the ON/OFF button to switch off
the heater. The ON indicator will go out. The
convection fan will continue to operate for
several minutes after the burner has gone out
in order to cool the appliance. Do not unplug
the appliance while the convection fan is
running.
l Filter
aON-
! DO NOT turn heater off by unplugging at the power point.
The convection fan will continue to run until the appliance cools.
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n ROOM TEMPERATURE ADJUSTMENT
The room temperature and pre-set temperatures can only be displayed and adjusted when
the heater is running.
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Press the “A” button to increase the temperature
setting or “v” button to decrease the temperature AMr --y-~,7,+-
setting. PM’ :y * 1, cc
The Temperatures can be preset to: Set - Room
a) [ L ] low (about 1O’C)
b) [16’C] to [26’C] in lo C steps
c) [ H 1 (continuously high)
If the heater does not ignite then the pre-set temperature may not be set to a setting which is
higher than the room temperature. The ON indicator will change colour from red to green
when the heater reaches the pre-set temperature and stops running.
n ECONOMY MODE
The Economy mode may only be operated when the heater is turned on, but remains in the
system memory once set until deactivated.
\ Select the Economy mode before selecting timer operation.
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Press the Economy button to start the Economy
function. The Economy indicator will glow.
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Press the Economy button once more to switch
off the function.
After the room is heated initially the air
temperature may be dropped to a lower level
without affecting comfort. 30 mins after the
selected room temperature (set with the
thermostat) is reached, the Economy mode, if
set, reduces the temperature by 1’C. After
another 30 mins it reduces the temperature by
a further i”C, this is an energy saving feature.
The Economy mode does not operate if the
heater is under capacity for the room size.
I . . .
Cn~ld LOCK Economy Ttmer!
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n CHILD PROOF LOCK
he Child Proof lock will help to prevent accidental operation as well as small children from
altering the controls.
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. . . . .
To operate the Child Proof lock simply press the Child
Lock button. The function is activated immediately
and the Child Proof lock indicator will glow.
1 To deactivate the Child Proof lock stmply press the
; Child Lock button for 2 seconds and the Child Proof
j ! lock indicator will go out. The lock can be
i \ deactivated at any time in this way.
During normal operation the Child Proof lock may be activated and all controls other than the
OFF switch will be locked. Deactivating the lock releases the controls. If the lock is
activated whilst the heater is turned OFF, then all functions will be locked. if the heater is
turned OFF whilst the Child Proof lock is activated, it cannot be turned ON again until the
lock is deactivated.
n AUTO COMFORT
A room temperature sensor located at the rear of the appliance is continuously monitoring the
temperature of the room. The main purpose of Auto Comfort is to improve control over the flow of
warm air being discharged through the louvres when the healer is first operated. The means by
which this control is achieved is an 7 speed modulating convection fan and the temperature sensor,
in conjunction with a micro-computer.
In order to achieve comfortable heating, it is preferable to avoid cold draughts from the appliance.
In the case of a conventional fan heater, the convection fan operates normally from the time of
ignition and a cool draught may accompany the flow of air from the appliance.
To overcome this situation, fuzzy logic controls the speed of the convection fan after taking into
consideration the room temperature at the time of ignition. For example: the room temperature is
low, then the fan rotates at low speed. As the room temperature rises the speed of the convection
fan gradually increases.
In this way it is possible to ensure a comfortable flow of warmed air, as well as decreasing the
sensation of cold draughts immediately after ignition.
The convection fan speed increases proportionally as the room gradually heats up. This improves
the warm air distribution, assisting in a reduction of warm air stratification throughout the room, and
resulting in more effective heating conditions.
The micro computer continuously monitors the room temperature and adjusts the convection fan
speed according to the conditions at the time.
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n FAN FILTER
To protect the room air fan from dust particles or
lint, a filter is situated at the rear of the appliance.
When this filter becomes blocked, the filter
indicator will flash to indicate that it should be
cleaned. Clean the filter weekly during the heating
season to avoid unnecessary strain on the
appliance.
Do not remove filter when appliance is
operating. When the filter requires cleaning,
clean filter before using the appliance, or whilst
the appliance is not operating.
If you do not clean the filter at regular intervals
and the filter indicator is allowed to remain
flashing, then the appliance will stop and (14) will
flash on the Digital Display signifying that the
inbuilt safety device has functioned. You must
clean the filter before operating the heater again.
n HUMIDIFIER TRAY
So that you can humidify the air, your Rinnai RHFE-557FT is fitted with an enamelled tray at
the bottom of the heater. If you choose to make use of the humidifier tray, it will need filling
about once a day during the heating season. Do not fill the humidifier tray while the heater
0
1 To fill the humidifier tray:
Remove the bottom trim panel, below the louvres,
by pulling on both sides. Simply pull the tray
forward to allow it to be filled with water. The
warm air will be humidified as it passes over the
water in the tray. Refit the bottom trim panel after
filling the tray. The RHFE-557FT is a very high
efficiency appliance, during operation a small
amount of condensation is produced in the flue
system, this drains into the enamelled humidifier
tray.
f The humidifier has the benefit (when filled with water) of raising the humidity in the air. With
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hwnidii, the heater can acfuafty be run at a lower temperature while still maintaining the same
of comfort.
n VERTICAL LOUVRE ADJUSTMENT
The warm air flow direction may be altered by
inserting a screwdriver or similar tool and gently
bending the vertical louvre(s) either to the left or the
right.
Note: These louvres are not designed to be
adjusted more than 6 times.
/’ /
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When the appliance is first plugged in and then turned on, the Digital Display will show - - : - -.
As an example, let’s set the clock to lo:35 am.
i TIMER/CLOCK SET INDICATOR J
SWITCH INDICATOR
TIMEFVTEMP ADJUSTMENT ‘) j
TIMER/CLOCK SET
OPEN THE CONTROL PANEL-SEE PAGE 9.
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When the appliance is first plugged in or after a
power failure, the Digital Display will show - - : - -.
Press the Set Times button once, the Clock
Indicator will flash.
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r--j Press and hold the “A” button; the minutes will
begin to change first, then the time will change by
whole hours. Release the button when AM 10:00
shows on the Digital Display. Confirm that you
have selected AM, a small indicator on the left
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I I hand side of the Digital Display indicates the AM
setting.
Press and hold the “A” button again, release the
i button when AM lo:35 shows. If you go past
: AM 10:35, then the “V” button can be used to
change the time settings in reverse.
0
3
7 Press the Timer Set button five times to lock
in and complete setting the time. The Clock and
Timer indicators will go out. A small indicator
on the Digital Display will flash to show that the
\ clock is operating.
Clock .-
T\mer 1 . .
Timer 2 l On l Off
-13-

,-
Before programming the Timers you must ensure that the clock has been set to the correct time.
As an example let’s programme Timer 1 to heat the room by 7:lO AM and finish at 9:00 AM.
l-l
1
l-l AM; Clock .
Press the Set Times button twice. The Digital PM 5::=;: Ttmer l:+: .
set . Rocfr Timer 2. On . Off
Display will show AM 6:O0. Timer 1 indicator
will flash.
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2
:
Press the “A” button until AM
release the button, then press
AM 7:lO appears. (Press the
you go past AM 7: 10.)
7:00 appears,
it again until
“V ” button if
Clock .
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u
r-l Press the Set Times button again, the Timer 1 OFF
II
indicator will flash. Press the “A”
AM 9:00 appears. button until
AM. CIOCK .
Et . n 1-t
PM ,r . ,J ,J
Set . Room
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4
Press the Set Times button three times to lock in 4NEk ;#I;’ . :lc Clxk .
PM - . J J
the programmed time. The Digital Display will Timer 1 . On . oft
Set . Room T$merZe l
show the current time. A small indicator on the v ;::: A Set Tomes
Digital Display will flash to show that the Display
has returned to the clock. 8
TURN TO NEXT PAGE TO OPERATE THE TIMERS.
TIMER 2 is programmed in the same way, remember to ensure that the Timer 2 indicator is flashing
when you programme in the desired setting.
The Timers can be programmed to operate for any two periods in any 24 hours. Turn to next page
to operate the dual timer.
The programmed time must be selected and locked-in within one minute of the On Timer
indicators flashing otherwise the programmed times will not be retained in the system memory.
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Before operating the Timer(s), the clockclock time must be correct, and a starling time and finishing
time for the Timer(s) must be progmmmed. See pages 13 and 14. The two Timers operate in
the same way. This heater doas nut commence op+xation at the programmed starting time.
It will attempt to heat a room by the programmed starting tirr~. ReseePra-heat page IS, for further
To select the Timer(s) to commence heating:
Check the time shown on the Digital Display is
correct. See page 13. Check the ON and OFF
times, for both Timers if necessary, see page 14.
Press the ON-OFF button to operate the heater. The
On indicator will glow green and the heater will
begin to operate. Select the desired temperature
setting.
Press the Timer 1 and/or Timer 2 button(s).
The Timer indicator(s) will glow and the heater
will remain on standby until one hour prior to the
time programmed into the selected Timer(s) is
reached. When this time is reached, the Timer
indicator will flash and the heater will operate.
The ON indicator glows red when the heater
commences operation.
SET AND FORGET OPERATION
Your heater can be operated to alternate between Timers automatically during cold weather by
selecting Timer 1 and Timer 2 together. Both Timer indicators will glow. The appliance will
remain on standby at intervals between the programmed finishing and starting times of each
Timer. While the heater is operating during programmed intervals the Timer indicator will flash.

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This function operates automatically in conjunction with either of the Timers. When a Timer is
selected, the heater may operate anywhere within an hour prior to the programmed starting time of
the Timer.
The Pre-heat function will heat a rwm to the pre-set temperature by the prcqmmmed On
This function is called Pre-heat due to the way it operates. The room temperature is sensed one
hour before reaching the programmed time of either Timer.
The temperature differential at the time of sensing the room temperature, combined with the data
from the previous operation governs exactly how long before the programmed On time the
micro-computer will operate the heater and ignite the burner.
The following chart may help to improve understanding of the Pre-heat function.
TIME ELAPSED FROM IGNITION TO PRESET TEMPERATURE
:-
i i
I : Colder than usual :
: I
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j:OO : ipLizz&J>
I I 7;oo
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: : I I
I Programmed time
: : I Later than average ignition
I Average starting time
: Earlier than usual ignition
kmm temperature sensed
Recorded by Micro Computer
1;
)
-16-

This function is intended to be used to manually override the current operation of the heater, For’
example; if the heater is in standby mode (i.e. between fihishing time and starting time of a Timer),
and the Override button is selected, then the heater will begin to operate, and heat the room.
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~ To operate the Override simply press the Override
j button. The Override indicator will flash.
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2 . . AM
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To manually deactivate the Override simply press Timer 1 Timer 2 O&k PM Set . Room
the Override button again. The Override indicator
will go out, and the heater will return to standby v J:: A
mode.
The heater will continue to operate on Override until the Override button is pressed again, or one
of the Timers takes over the operation of the appliance. This means that the Override mode will
automatically drop out if a programmed Starting time is reached. The appliance will then return
to operating at times programmed into the Timer(s).
-17-

This appliance is controlled by a micro computer. If there is something wrong with the
appliance then it will stop, as it is protected by the following safety devices.
Ignition Safety Device Power Failure Safety Device
Burner Safety Device Power Surge Safety Device
Overheat Safety Device Fan Delay Safety Device
Your RHFE-557FT requires very little maintenance,
simply clean the rear fan filter once a week and
wipe the outer case and louvre section with a
damp cloth.
DO NOT USE SOLVENTS.
Solvents may melt or distort plastic parts.
Remedy
Clear obstruction
-18-

Before asking for a service call please check the following points.
These points are part of the normal operation of the unit.
H At Ignition:
Heater does not operate. -+ Is the heater plugged in?
Have the fuses or breaker blown at the switch board?
Is there a power failure?
Is the air filter blocked?
Is anything blocking the outlet for the hot air?
Is the flue blocked?
Are Timers set? Clear Timers and operate again.
Warm air does not flow when the burner lights. -+ The fan is started automatically after a short delay.
This is to allow the heat exchanger to warm up,
helping to avoid cold draughts.
Smoke or strange smells are produced on the
first trial light up afler installation.
,I and will stop after a short time.
Sharp clicking noises at ignition, or when the
1 This is caused by grease or oil and dust on the heat exchanger
unrt cuts down on the thermostat, or goes out. This is simply expansion noise from the heat exchanger.
n During combustion:
Clunking noise when the thermostat operates. -+ This is the sound of the solenoid gas valves opening and
closing.
Unit is not heating room. -+ Is the air filter blocked?
Is the set temperature high enough?
Is the warm air outlet blocked by anything?
Are the doors and windows of the room closed?
Air filter is blocked or the louvres are blocked
or obstructed. --) Allow heater to cool, clean air filter, operate again. 1
Heater will not re-ignite after overheating. Even after unit has cooled down the heater does not ignite
again. Repair is necessary.
Contact your local agent or Rinnai for a
Service call.
n When the unit is turned off:
Convection fan continues to run after turning OFF. -+ This is to remove the residual heat from the heat exchanger, the
fan will stop when the heater cools down.
n Other Points:
Steam is discharged from the flue terminal. ] --) 1 High efficiency appliances tend to discharge water vapour on -
cold days, this is normal.
Unit cuts off without apparent reason. + Check whether filters are blocked, dirty filters will cause the
heater to overheat.
Power Failure. 1 + Switch OFF, then ON again when power is restored to
re-set controls.
-19-

The Energysaver 557 has the ability to check its own operation continuously. If a fault occurs, an Error
Message will flash on the Digital Display of the control panel. This assists with diagnosing the fault,
and may enable you to overcome a problem without a service call. Please quote the code displayed
when enquiring about service.
FAULT
Ignition failure
Flame failure
Overheat
Room overheat
Room Temperature
Sensor faulty
Overheat temperature
Sensor faulty
Sparker failure
Combustion fan failure
Faulty ON/OFF switch
Faulty solenoids
Faultly Flame Rod
Communication Error
Power failure
REMEDY
Check gas is turned ON.
Service call if repeated.
Check gas is turned ON.
Service call if repeated.
Clean filter
Service call if repeated.
Lower room temperature
to less than 40°C.
Service call
Service call
Service call
Service call
Service call
Service call
Service call
Turn heater OFF,
then ON again.
Turn heater OFF,
then ON again.
In all cases, you may be able to clear the Error message simply by turning the heater OFF, then ON
again. If the Error Message still remains or returns on the next operation, contact Rinnai or your
nearest service agent and arrange for a service call.
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