Rinnai rhfe-553ft User manual

Rinnai
RHFE - 553FT
CUSTOMER’S OPERATING
INFORMATION
E I I 0
INSTALLATION INSTRUCTIONS
This appliance shall be installed in accordance with:
Manufacturer’s Installation Instructions
Local Gas Fitting Regulations
Municipal Building Codes
A.G.A./ S.A.N.Z. Installation Code for Gas Burning Equipment
Any other relevant Statutory Regulation
This appliance must only be installed, serviced and removed by an
Authorised Person.

Guarantee Information ........ . .......... . ............ ................. . .. . ........... ..... . .. 2
Features .......... ........ . .. . ........ .. ..... . . . ....... . . . ....... . .... . . 3-4
Getting to know your New RHFE-553FT ............................................................................................................................ 5
Control Panel Layout ............................................................................................................................,......................,...,,*.*....... 6
Safety Points ...................................................................................................................................................................................... 7-8
Operating your New RHFE-553FT ............. ............... . . ... ........... . . . ................ .. ................. 9-12
Setting the Clock ............................................................................................................................................................................
13
Programming the On Timers ....................................................................................................................................................
14
Operating the On Timers ........................................................................................................................................................I.... 15
Pre Heat . . . .. . .. . . . . . . . . 16
Delay/off ........................................................................:.......................................................................................................................
17
Caring for your New ~HFE-~53~ ........................................................................................................................................ 18
Pre-service check .............................................................................................................................................................................
19
Error Mes=ws and Safety Devices .................................................................................................................................... 20
Installation Instructions .................................................................................................................................................................
21-29
Wiring Diagram .................................................................................................................................................................................
30
Block Diagram .............................................................................................................................................................................. 30
Service Contact Points ................. .. ............. . . .............. . . . .. ................... . . ........... ........ Back
Cover ’
Dimensions .......................................................................................................................................................................................
Back
Cover
This heater must be installed correctly by an authorised person, and the installation must
conform to local regulations. The installation must also comply with instructions supplied by
Rinnai. Your RHFE-553FT has been approved by The Australian Electrical Authorities, The
Australian Gas Association, and The Gas Association of New Zealand.
S.A.N.Z. Approval Number 725
A.G.A. Approval Number 4775
All dimensions are in mm unless otherwise specified.
Please keep these instructions in a safe place for future reference.
-l-

Free Labour Free Parts
1 Year 2 Years
As the purchaser of this High Quality Rinnai product you are provided with the following
guarantee:
Model RHFE-553FT
The benefits conferred by this guarantee are in addition to all other rights and remedies in respect
of the product which you have under the Trade Practices Act and other State and Territory Laws.
Guarantee does not cover cleaning and normal wear and tear, calls of this nature may be
chargeable.
Please check the fault finding charts on Pages 18, 19, and 20, before asking for a service call.
You may be able to overcome the problem without a service call, or the heater may be operating
normally. Service calls to a heater which is operating normally may be chargeable, even when the
heater is under guarantee.
The Installer is responsible for your heater’s correct installation.
There is no requirement to post the following information back to Rinnai. However we advise that
you keep it in a safe place as your record.
Date of Purchase:
Retailers Name:
Date of Installation:
Installers Name:
Address:
Telephone:
Address:
Telephone:
Licence Number:
--
SERVICE
RINNAI NEW ZEALAND HAS A COMPREHENSIVE NETWORK. OUR SERVICE NETWORK
PERSONNEL ARE FULLY TRAINED AND EQUIPPED TO GIVE THE BEST SERVICE ON YOUR
RINNAI APPLIANCE. IF YOUR APPLIANCE NEEDS SERVICE, PLEASE RING THE NEW
ZEALAND SERVICE CONTACT NUMBER ON THE BACK OF THIS BOOKLET.
-2-

Air for combustion is taken from outside
the room and the flue products are
exhausted outside, keeping the room air
clean.
Warm air flows from the bottom of the
appliance through the louvres, assisting
in even heat distribution. An integral
humidifier tray is built into the warm air
discharge duct.
When selected, the Pre Heat function will
automatically operate the appliance within
one hour prior to the programmed time of
the On Timer. This is designed to heat a
room to the pre-set temperature by the
programmed time. See P. 16.
Only one touch of the ON/OFF switch is
required to operate the heater. See P. 9 .
The On Timer allows you to programme
the appliance to come on at a
programmed set time. (Eg: early
morning). When used in conjunction with
the energy saving Pre Heat function, the
heater will bring the temperature of a
room to the selected temperature by the
time programmed into the On Timer.
See P. 15.
This feature is useful where the
appliance is installed in a bedroom and
you would like the heater to continue
operating a little longer after going to
bed. See P. 17.
3-

FILTER I~~l~AT~R
When the air filter becomes covered with
dust and the temperature inside the
appliance rises, the filter indicator will
flash. The filter should be vacuumed at
regular intervals to avoid unnecessary
strain on the appliance. See P. 12.
--
A light Emitting Diode (LED) Display
allows you to see what the actual room
and pre-set temperatures are. The
Clock/Temp changeover button located
under the Digital Display alternates the
display between time and temperature
when the heater is turned ON. At times
when the appliance is not heating, only
the clock will be displayed.
Set Temp Room Temp 0 Timer
Clockflemp 0
The micro computer records selected pre-
set temperatures, the time programmed
into On Timers as well as operating the
Economy and Pre Heat modes, and
maintaining comfort levels.
Ensures that the flow of warm air from the
louvres is maintained at a comfortable
volume during the warm-up period by a 7
step modulating convection fan, in
conjunction with the thermostat, reducing
cool draughts. See P. 11.
When the Child Proof lock is activated
all controls other then the ON?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 P. 11.
This is an energy saving feature designed
to reduce the room temperature to 1°C
less than the preset temperature over a
period of 30 minutes, and an additional
1°C after another 30 minutes. See P. 10.

GETTING TO KNOW YOUR NEW RHFE-553FT
Built into the warm
air discharge duct.
Humidifies the warm
I
BOlTOM TRIM
Pulls off to allow
filling of humidifier
tray.
I I
ON/OFF SWITCH I
Helps to protect the
interior of the appliance
and fan from dust
Exhausts flue products
to the outside of the
I AIR INLET TUBE
Carries air for
combustion
-5-

CONTROL PANEL LAYOUT
Turns the heater OFF
after a selected delav
I of 30,60 or 120 mins:I ( Timers for adjusting
1 I 1 programming
7-
IIndicates that the
clock is being set I temperature setting as well as
changing hours or minutes.
See P. 10 and P. 13.
conomy mode is in Indicates ON Timer
Shows either the time of day,
temperatures, or coded error
messages.
lock is activated.
I
Indicates that the appliance is turned ON and
whether the burner is alight.
6etTemp Room Temp b Timer ON d 4
AM 0
m.40
ClorWTemp
Filter Auto Comfort
--I- ON/OFF
e micro computer I
e appliance at optimum
ormance levels during the warm-
-6-

SAFETY POINTS
Do not restrict the warm air discharge
by placing articles in front of the heater. This appliance must not be used for any
purpose other than heating.
Do not spray aerosols whilst the heater is
operating. Most aerosols contain butane
gas, and can be a fire hazard if used near Flue guard is recommended where
children may be able to touch the flue
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.

SAFETY POINTS
Keep flammable materials, trees,
shrubs, etc, away from the flue
terminal.
Do not allow anyone to post articles
through the louvres.
Filter should be cleaned at regular
intervals. See Page 12.
4
Young children should be supervised at
all times. Hand or body contact with the
louvres should be avoided.
Do not place articles containing liquids
on top of the heater. Liquids spilt on
the controls may cause extensive
damage.
Do not allow young children or the infirm to
sleep directly in front of the heater.
-8-

OPERATING YOUR NEW RHFE-553FT
H TO OPEN THE CONTROL PANEL
Press lightly in the centre of the panel where
‘Push’ is marked, and release. The control
panel will then drop forward on 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.
press the ON/OFF button UFF,then ON again.
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.
DO NOT turn heater off by ~nplu~~~n~ at thepower point. .
The cofivection fan will contir~e to run until the appliance cosfs,
-9-

n ROOM TEMPERATURE ADJUSTMENT
With the heater operating, if the temperatures
are not already displayed on the Digital
y, press the Clock/Temp changeover
Press the HRS n button to increase the
temperature setting or MIN V button to
decrease the temperature setting.
The Temperatures can be preset to:
a) [ L ] low (about 1O’C)
b) [16’C] to [26’C] in lo C steps
c) [ H ] (continuously high)
1 b CbUNUIVlY MUIJE
- I
Press the Economy buttan to start the Economy
I Economy min Delay/off
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 l”C, this is an energy saving feature.
The Economy mode does not operate if the
heater is under capacity for the room size.
- lo-

W CHILD PROOF LOCK
r-l
Ll
1
To operate the Child Proof lock simply press the OnTimer 0 0
HRS n and MIN V buttons together. The function
is activated after 1 second and the Child Proof lock
indicator will glow.
-
l-l
2
To de-activate the Child Proof lock simply press the
HRS n and MIN X7buttons together, and the Child
Proof lock indicator will go out. The lock can be
de-activated at any time in this way.
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 heater is first operated. The means by
which this control is achieved is a 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. The Auto Comfort Indicator will glow to indicate the
function is operating.
-
- 11 -

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.
W HUMIDIFIER TRAY
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-553FT 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
1 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.
-12-

Sl3TlNG THE CLOCK
i-
When the appliance is first plugged in and then turned on, the Digital Display will show 12:00, flashing.
As an example, let’s set the clock to 10.35 am
OPEN THE CONTROL PANEL - SEE PAGE 11.
Press the Timer set button once, the Clock
Indicator will flash.
When the appliance is first plugged in or after a
0
2
Press the HRS n button, until AM 10.00 shows
on the Digital Display. By keeping the button
pressed continuously the time will change
rapidly. Confirm that you have selected the AM OnTimer 0 0
setting.
Press the MIN 77 button, until AM 10.35 shows
on the Digital Display. By keeping the button
ressed continuously the time will change
Press the Timer Set button three times to lock
in and complete setting the time. The clock and
On Timer indicators will go out. A small
indicator on the Digital Display will flash to
show that the clock is operating.

As an example let’s programme On Timer 1 to AM 7:lO
cl
1
Press the Timer set button twice. The Digital
Display will show AM 6:O0. On Timer 1
indicator will flash. If you do not programme
the starting time within one minute, the On
Timer 1 indicator will go out and the Digital
Display will revert to the clock.
Press the HRS n button until AM. 7:00
appears on the Digital Display. By keeping the
button pressed continuously the time will
change rapidly. (Keep pressing the HRS n
button to change from AM to PM).
Clock 0 TimvSet J
OnTimer 1 &..
OnTimer d
Press the MIN ‘J button until AM 7:lO appears
on the Digital Display.
Press the Timer set button twice to lock in
the programmed time. The Digital Display
will show the current time.
TURN TO NEXT PAGE TO OPERATE ON TIMERS.
hours.
The programmed time must be selected and locked-in within one mint&Q nf the On
- ...--_-_- -. -.-
Timer indicators flashing otherwise the programmed times will not be retained in the
tern memory.
-14-

To select the On Timer to commence heating at
the programmed time: I Set TemD RoomTemD 0 Timer
Check the time shown on the Digital is
correct. Select the desired temperature setting.
See P. 10. Check the starting time for both On
Timers, if necessary, see P. 14.
0
2
Press the ON/OFF button to operate the heater.
The ON indicator will glow green and the heater
will begin to operate.
Press On Timer 1 or On Timer 2.
The On Timer indicator as well as the Timer
indicator will glow and the heater will remain on
standby until the time programmed into the On
Timer is reached. When the programmed time
is reached the On Timer indicator will go out
and the heater will operate. The On indicator
glows red when the heater commences
operation.
Your heater can be operated by alternating between On Timers during cold weather
by pushing On Timer 1 or On Timer 2 when leaving home in the morning or going to
bed at night. Simply select the desired On Timer, the appliance will stop and remain
on standby until the next programmed start time.
-15-

Ll
1 To select the Pre Heat function:
Simply press the Pre Heat button after you
have selected the On Timer function. The Pre
Heat indicator will glow. The Pre Heat function
will remain activated in the system memory
until the Pre Heat button is pressed again and
the function is de-activated.
This function is called the Pre Heat timer due to the way it operates. The room temperature
is sensed one hour before reaching the programmed time of either On 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 time the
micro computer will operate the heater and ignite the burner.
The following chart may help to improve understanding of the Pre heat Timer function.
TIME ELAPSED FROM IGNITION TO PRESET TEMPERATURE
e
I :
I I
I : Colder than usual :
: I
:
:
I
* Recorded by Micro Computer
I
6:00
:
:
:
:I7
: : I
I Programmedtime
: I Later than average ignition
.
-16-

This function may be used for example, on cold nights, *here the fiance is installed in a
bedroom and you wuultlf like the heater to continue operaZing a little longer after going to bed.
When selected, this programme will automatically switch OFF the heater after a time period of
either 30, 60 or 120 minutes. The selected Delay/off time is illuminated on the control panel.
With the heater operating manually or with the
On Timer set, simply press the Delay/off
button. The 30 min Delay/off indicator will glow.
The Timer indicator will also glow.
To increase the Delay/off time period to either
60 or 120 min simply press the Delay/off button
again until the desired Delay/off time setting
has been selected.
However, if the time between pressing the Uelayloff bution again &greater than one minute,
then Delay/off time period will begin again from that came befey period,
Five minutes before the finish of the Delay/off
time period the 30 min indicator and the Timer
indicator will flash, to indicate that the function is
nearing completion. The 30 min and Timer
indicators will then go out at the completion of the
Time delay. However if selected whilst the On
Timer is set, then the On Timer and Timer
indicators will remain on.
Economy min Delay/off
fo cancel the Delay/off, the heater must be switched OFF then ON again. The Delay/off can
only be operated when the heater is running,
-17-

CARING FOR YOUR NEW R’ ~--I
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
Further explanation of these Safety Devices is outlined in the section on Page 20.
Your RHFE-553FT 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.
Problem I
Not Plugged In
s
mE
58 Remedy
00)
35
dE
cg
Plug In
e-Ignitemanuallyafter
obstructed
connected
-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. + Isthe heater plugged in?
Have the fuses or breaker blown at the switch board?
Isthere a power failure?
Isthe air filter blocked?
Is anything blocking the outlet for the hot air?
Is the flue blocked?
Are Timers set? Clear Timers and operate again.
L
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 drafts.
Smoke or strange smells are produced on the
first trial light up after installation.
Sharp clicking noises at ignition, or when the
unit cuts down on the thermostat, or goes out.
This is caused by grease or oil and dust on the heat exchanger
and will stop afler a short time.
This is simply expansion noise from the heat exchanger.
n During combustion:
Clunking noise when the thermostat operates. -+
Unit is not heating room.
This is the sound of the solenoid gas valves opening and
closing.
Isthe air filter blocked?
Is the set temperature high enough?
Isthe warm air outlet blocked by anything?
Are the doors and windows of the room closed?
, I
IAir filter is blocked or the louvres are blocked 1 --) 1 Allow heater to cool, clean air filter, operate again. I
1 or obstructed. I I I
Heater will not re-ignite after overheating.
n When the unit is turned off:
Convection fan continues to run after turning OFF. +
q Other Points:
Steam is discharged from the flue terminal. +
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.
This is to remove the residual heat from the heat exchanger, the
fan will stop when the heater cools down. I
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. --) Switch OFF, then ON again when power is restored to
reset controls.
-19-