Rinnai RHFE-551FT Quick start guide

RHFE-551FT
FORCED FLUE HEATER
CUSTOMERS OPERATING
INFORMATION
AND
INSTALLATION INSTRUCTIONS
.‘I.
This appliance shall be installed in accordance with:-
Manufacturer’s Installation Instructions
Local Gas Fitting Regulations
Municipal Building Codes
GANZ Installation Code for Gas Burning Equipment
Any other relevant Statutory Regulation
This appliance must be installed, serviced and removed by an
Authorised Person. Rinnai
wp
GAS SPACE HEATERS

( CONTENTS
CUSTOMERS OPERATING INFORMATION .............................. 1
Important Points ....................................................................... 5
Guarantee Information ................................................................ 7
Safety Devices .......................................................................... 8
Care of your RHFE-551FT ........................................................... 9
Pre Service Check .................................................................... 10
INSTALLATION INSTRUCTIONS .......................................... 11
Location .............................................................................. 12
Sleeve and Manifold Installation ................................................... 15
Fitting Unit .......................................................................... 17
Testing ............................................................................... 18
Installation Check ................................................................... 19
Dimensions ........................................................................... 20
Wiring Diagram ..................................................................... 21
Specifications ..................................................................... Back Cover
Service Contact Points ................................ ..I ....................... Back Cover
Voumard Coax Installations ...................... See Instructions supplied with flue set
I
( FEATURES OF RHFE451FT
1. Input 22MJ/ h, output approximately 18MJ/ h, suitable for both domestic and
commercial applications.
2. 3 step automatic heat control with electrdnic thermostat, the fan is also controlled by
the thermostat.
3. Ignition is electronic.
4. The integral humidifier tray can be ftied with water as required to raise the humidity
level in the room.
5. Air for combustion is taken from the outside and the flue product is exhausted outside,
keeping the room air clean.
6. Warm air is discharged at the bottom of the heater, this improves air distribution.
7. Only one 80 mm diameter hole is required in the wall for flue installation.
This heater must be installed correctly by an authorised person, and the installation must
conform with local regulations. The installation must also comply with the instructions
supplied by Rinnai.
Your RHFE-551FT has been approved by the NZ Gas Association,
GANZ Approval Number 369
Please keep these instructions in a safe place for future reference.

CUSTOMERSOPERATINGINFORMATION
For trouble free operation, please read the following information carefully:-
For your convenience the controls on your new Rinnai RHFE-551FT are situated behind a
hinged cover on the top right hand side of the heater.
All necessary adjustments to the operation of the Rinnai RHFE-551FT can be made with
these controls.
CONTROL PANEL
Number
diagam Control Function
a ON -
cl
OFF& ~ Main Switch:
Turns the unit on and off
a 0 0 -;$- “ON” Indicator Lamp (Green):
Indicates that the heater is in the “ON” mode.
0 0 +- 0 COMBUSTION Indicator Lamp (Red):
Indicates that the burner is alight.
@I ;+- 0 0 TIMER Indicator Lamp (Green):
Indicates that the timer is in use.
0
TEMPERATURE Thermostat Control:
For Room Temperature Adjustment.
8
Timer:
Allows you to programme the heater to come on
after a pre-selected delay, for example in the morning
or before you come home from work.
-l--

1 CUSTOMERS OPERATING INFORMATION
H IGNITION (Not using Timer)
Make sure the timer is in the “ON”
position.
n To Ignite Main Burner
Push the main switch down to switch it
“ON”. ON * -
OFF 1 0
The green indicator lamp will glow.
The heater will light in about 15 seconds,
and the red indicator lamp will glow.
If the heater does not light, check that the
temperature control is set to a high enough
setting.
TEMPERATURE
.
n To Increase Room Temperature
Slide the temperature control towards the
“HI” position. The burner has 3 settings,
“OFF”, “LO”; “HI” and will automatically
modulate between these settings to keep
the room temperature constant. It is quite
normal for the burner to go out auto-
matically during operation. When the
burner goes out, the red combustion lamp
goes out, but the green operation lamp
stays alight.
The fan speed will also modulate according
to the room temperature.
TEMPERATURE
n To Decrease Room Temperature
Slide the control towards the “LO”
position.
The heater may go out completely, and
come on again when the room temperature
has dropped to the selected level.
TEMPERATURE
-2-

1 CUSTOMERS OPERATING INFORMATION
e mam swi o the “OFF”
position. The fan will continue to run until
the heater is cool.
Do not turn the heater off by unplugging
it from the power point.
If the main switch is in the “ON” position
and the operation lamp is out, the unit is
in Lockout (automatic shut off). This does
not apply when timer is in use.
To re-set, switch off, wait 10 seconds, then
switch on again.
No “Operation”
Indication
Set timer
hours delay which you require.
For example if you are going to bed at 11
p.m. and need the heater to warm the
room at 7 a.m. slide the control to 8 hrs.
Turn the heater on (Push main switch)
Set the thermostat
Turn ON
(The timer moves back towards the “ON”
position indicating the remaining delay
time.) TIMER INDICATOR
GLOWS
After the pre-selected delay, the operation
lamp will glow. The burner will light
automatically in about 15 seconds and the
heater will maintain the pre-set room
TEMPERATURE
Thermostat
The burner will go out and the fan will
stop when the heater is cool.
The heater will relight after the pre-selected
delay.

CUSTOMERS OPERATING INFORMATION
So that you can humidify the air your
RHFE-551FT is fitted with an enamelled
tray behind the air outlet. To fill the tray,
open the door as shown in the diagram
and pour water into the tray using the
spout built into the door.
The air will be humidified as it passes over
the water in the tray. DO NOT FILL
THE TRAY WHILST THE UNIT IS IN
OPERATION. CLOSE THE DOOR
AFTER FILLING. The RHFE-551FT is
a very high efficiency appliance, during
operation a small amount of water is
produced in the flue tubes, this drains into
the enamel tray. It is quite normal for a
small quantity of water to remain in the
bottom of the tray. If you are using the
humidifier, it will need filling about once
a day during the heating season.
Do not force door open too far.
Close door during operation.
To protect the fan from dust and lint, the
RHFE-55 1FT is fitted with 2 fan filters.
They are located at the top, rear of the
unit. To clean, pull the filters out of the
unit and remove dust with a soft brush or
a vacuum cleaner. Replace filters after
cleaning, Weekly cleaning is recommended
during the heating season.
WOUTSIDE FLUE
On cold days steam may be discharged from the flue outlet, this is normal with a high
efficiency appliance and does not indicate any fault.
The heater and its flue must be installed correctly by an authorised person, and the
installation must conform to all local regulations.
The installation also must comply with the instructions supplied by Rinnai.
This heater must be serviced, installed and removed by an authorised person.
No parts or functions should be modified or permanently removed from the heater or its
flue.
-4-

IMPORTANT POINTS
Do not use for any other purpose except
heating.
x
Do not allow curtains or other flammable
materials to come into contact with the
heater
Do not store flammable products near the
unit.
These clearances should be maintained at
all times.
15Omm iI
50mm
c=
-1 m-
Keep flammable materials, trees shrubs
etc. away from flue terminal.
.(., Flue Terminal
Supervise children near heater Do not allow young children or the infirm
to sleep directly in front of the heater
-5-

1 IMPORTANT POINTS
Do not allow children to ‘post’ articles in
the louvres.
Do not spray aerosols on the heater whilst
it is in operation.
Do not sit on this heater.
Do not place any articles containing liquids
on top of the heater.
Do not place articles on or against the
heater.
-6-

GUARANTEE INFORMATION
H RINNAI GUARANTEE OF QUALITY
As a purchaser of a high quality Rinnai Product, we provide you with the following
guarantee on your new RHFE-551FT. J
All parts
FREE PARTS
1 year
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 Trades Practices Act.
Please record below:
Your Retailer:
Address:
Date Of Purchase:
Your Installer:
Address:
Phone:
Installer’s Licence No.
Phone:
Date Of Installation:
The installer is responsible for your heater’s correct installation. (There is no need to post
this guarantee back to Rinnai. Simply keep it in a safe place as your record.)
-7-

1SAFETY DEVICES
Overheat Switch:
This device automatically cuts the gas off if the heater exceeds a predetermined tempera-
ture. This is normally caused by an obstruction in front of the louvres, or a blocked fan
filter.
If this switch operates, turn the unit off, remove the obstruction (clean filters) let the
unit cool off before re-operating.
Fusible Link
Backs up the overheat switch. If the fusible link cuts the unit off, a service call by an
authorised person is required to replace the link.
Flame Failure Device
If the flame goes out during operation this device cuts the unit off (lockout). To reset,
turn the unit off, then on again.
Fan Switch
Turns the fan on automatically when the heat exchanger warms up and off when it cools
down. This helps to prevent cold draughts and adds to the unit’s efficiency.
-8-

( CARE OF YOUR RHFE455lFT
This unit needs very little maintenance, simply clean the fan filters once a week and wipe the
outer case with a soft damp cloth.
DO NOT USE SOLVENTS.
Check the terminal occasionally to make sure shrubs etc. have not grown around it.
UNIT CHECK LIST Please check this list before asking for service.
Remedy
Not Plugged In 0 0 Plug In
Power Cut 0 0 Re-ignite manually after
power is restored
(initial installation)
Air in gas pipe 0 Purge air
(Installer)
Gas Filter Blocked l 0 0 Service Call
Mis-ignition 0 0 Check customers
instructions
Flue terminal
obstructed 0 0 0 Clear obstruction
Flue manifold not
connected 0 Service Call
Louvre obstructed 0 0 Clear obstruction
Air filter blocked 0 l Clean filter
Gas escape 0 Service Call
Room too large 0 Check with retailer
“ON” Timer is set 0 0 Cancel “ON” Timer
If you are unsure about the way the unit is operating contact Rinnai or your agent.
-9-

PRE SERVICE CHECK
Before asking for a service call please check the following.
These points are part of the normal operation of the
h unit.
At ignition:
I I c
Warm air does not start when the burner
lights.
Smoke or strange smells are produced on
the first trial light up after installation.
The fan is started automatically after a
i
This is caused by grease or oil on the heat
Sharp clicking noises at ignition, or when
the unit cuts down on the thermostat, or --- This is simply expansion noise from the
goes out. heat exchanger.
During combustion:
Clunking noise when the thermostat
operates.
When the unit is turned offz
. This is the sound of the solenoid gas
valves opening and closing.
Convection fan continues to run after This is to remove the residual heat from
turning off. - the heat exchanger, the fan will stop when
the unit cools down.
Otherpoints:
Steam is discharged from the flue terminal. - High efficiency appliances tend to dis-
charge water vapour on cold days, this is
Heater does not start even when ON
button is pushed, and thermostat is on Check timer. Timer must be in the
-
HIGH. “ON” position for manual operation.
Timer:
I I
Timer does not operate when set for less
than 2 hours. -
I
When setting timer for periods less than
2 hours, slide control beyond “2” and
then back again to set mechanism.
Heater does not start at exact time set
on timer. Timer is accurate to within plus or
minus 20 minutes of set time.
- 10 -

INSTALLATION INSTRUCTIONS
1 UNPACKING
n Remove parts from carton and check that all parts shown below are included in the
installation kit.
Flue Manifold ..................................... 1 Spare rubber seal .............. 1
(‘A’ Flue units only)
. .$.’ : ..
. . . .
. . .
: . ..
8
. .
0 :.
. . a:
. . : *
. .
(For weatherboard installations)
Plastic tie for air inlet Slide Guard .................. 1 WallBracket ...........
connection .................... 1
Customers Instructions
and
Installation Instructions
................. 1
Screws
Back Cover (Top) ...
Sleeve .....................
WallBracket (Wood:
..................
< 1i!j
(OPTIONAL FLOOR BRACKETS ARE AVAILABLE FOR COMMERCIAL INSTALLATIONS)
Check unit supplied is correct for the gas type in your area.
Refer to local gas authority for confirmation of gas type if in doubt.
Refer to data plate located inside front panel.
Check for damage, if the unit is damaged contact your supplier or Rinnai.
Do not install a damaged unit before checking with your supplier.
- ll-

1LOCATION
When positioning the unit the main points
governing the location are:-
(1) Flueing
(2) Warm Air Distribution.
Warm air discharge should be positioned
at least 1 m away from flammable
materials (curtains etc.).
See diagram for other recommended
clearances.
15Omm
0
50mm
c=
-lm, 5Omm
=B
Flue fittings must be kept clear of
flammable materials.
This unit is not designed to be built in.
Flue is not designed to be positioned
under floors, or below the level of the
heater.
Flue terminal should be positioned away
from flammable materials.
-
Flue Terminal
- 12-

1LOCATION
Do not flue into natural draught flues or
fireplaces, this unit can only be used with
a Rinnai flue kit.
(A flue kit is available to flue right through
to the rear of most fueplaces. Use this kit
when the heater is going to be installed in
front of a fireplace.)
Do not flue unit into other rooms.
Flue terminal must be outside.
Flue may be positioned directly under
opening windows, with a minimum clear-
ance of 150 mm.
Flue sizes:
4 flue lengths are available.
A flue suits walls 115-240 mm
B flue suits walls 240400 mm
C flue suits walls 400-600 mm
D flue suits walls 600-800 mm
For information on special extra long
flues, contact Rinnai.
Co-ax internal wall flues are also available.
Separate instructions are supplied with
co-ax flue kits.
W Standard installation of flue manifold.
Diagram below shows minimum clearances
and distances from obstructions.
Also check AG601 and/or local regula-
tions.
I PZAI
Side Clearances.
- 13-

1LOCATION
Do not install the unit in an unusually
dusty area.
Use flue guard if the terminal is easily
accessible to children.
Check local regulations.
Guards are available as an optional extra.
Floor must be level.
Do not use electrical extension cords to
connect unit to power supply.
Keep the power cord away from the flue.
770 (mm)
Flue manifold position.
Centre of hole for flue manifold can be
drilled anywhere within the shaded area.
(To avoid studs etc.)
FOR WEATHERBOARD WALLS DRILL
THROUGH CENTRE OF WEATHERBOARD
FROM OUTSIDE, THEN DRILL FROM
INSIDETHROUGH PLASTERBOARD.
1
When drilling the flue hole, check for
. water and gas pipes and electric cables
before starting to drill.
Use an 80 mm (8 cm) drill for hole through
wall.
Wall Mounting Bracket
Fit the wall mounting bracket to the wall.
Position of bracket is shown in the
diagram.
(use screws provided).
(mm)
-14-

SLEEVE AND MANIFOLD INSTALLATION
METHOD FOR STANDARD WALLS
1. D&assemble Manifold from Sleeve
The flue consists of 3 parts, sleeve,
inside connectors and tube, outside
terminal (dis-assemble by pulling hard
on outside terminal and inner connec-
tions, then pull sleeve off outer
terminal).
Connections
2. Adjustment of Sleeve Length
Measure wall thickness through previ-
ously drilled 80 mm hole (see P14).
End of sleeve should protrude S-10 mm
from outside wall. Adjust sleeve length
to wall thickness plus 5-10 mm. (Sleeve
is threaded for adjustment.)
Extension joint
3. Depending on flue set and wall thick-
ness extension piece “C” may need to
be removed.
Cut plastic, remove extension, then
follow instruction 2.
“A” Flue ONLY
This applies to “A” flues only. There is
no extension on “B” and “C” flues.
“B” and “C” flues can be fully adjusted
by turning the threaded section.
\
Remove extension at this
point if necessary.
4. Fixing Sleeve
Fix ,$o inside wall, use 3 screws pro-
vided.
NOTE:-
Flange is marked “TOP” sleeve must be
fitted with this mark UP.
Check sleeve protrudes 5-10 mm on
outside.
Don’tremove green plastic covering
from sleeve.
- 15-

5. Check rubber seal is in place on
terminal.
Terminal Seal
*For weather board walls, add spare
rubber seal provided to compensate for
weather board angle.
6. Installation of Terminal
From outside, insert terminal into sleeve
with the “A” mark at the top.
Left hand side fixing tie is marked
“LEFT” (from inside).
Pull hard on left and right hand side
You should be able to pull the ties 2 or
3 slots past the starting point.
Cut the ties, leaving about 20 mm past
the lugs. Bend ties so they are parallel
with the wall.
8. Insert Inner Connection Assembly
Push assembly into terminal tube, make
sure “TOP” mark is uppermost. Fix
Sleeve
attaching.
- 16-

Floor mounting brackets. (Sold separately)
Fit brackets loosely to heater as shown
below (use if heater requires securing at
the base). These bracket are not required
for domestic installation.
Fit back covers (sides only) as shown
below.
Air Inlet Hose
Connect inlet pipe to manifold.
Don’t kink the plastic hose.
Secure with plastic tie as shown below.
Plastic Tie
If there is space at the left hand side of
the heater, it is easier to remove the
sliding tube from the flue outlet, insert it
into the manifold, then slide the heater
sideways, reconnecting the sliding tube
into the flue outlet as the heater is moved.
N.B. Red line should not be visible after
sliding the tube back into the flue
outlet.
Sliding Tuba
If there is a restricted space on the left
hand side of the heater, angle the flue
outlet as shown below, line up the
manifold and flue outlet, push the sliding
tube of the flue outlet firmly into the
manifold.
N.B. Sliding tube should not be extended
beyond the red line.
I Red Line
- 17-

Slide Guard and Insulation
Slide -
Flue
lnsuiation Slide insblation up to here.
I I
First slide insulation ‘sock’ over the flue
outlet tube.
Then clip slide guard over it.
Clip guard over flue
/
Check insulation
Testing Unit
Purge air and swarf from gas line. Connect
iw
Refer to GANZ pipe sizing chart if in
doubt about the size of the gas line.
Connection can easily be reached from
the top, rear of the unit. Check for
escapes, using soapy water after turning
gas on.
Remove outer case, 4 screws inside louvre,
2 behind louvre and 3 on the top rear of
casing.
Remove test point screw, attach pressure
gauge to test point, (on solenoid valve).
Plug unit in .and turn power on, (CAU-
TION-240V inside unit).
Turn thermostat to “HI”, turn control
to “ON”. Unit should ignite within 10
seconds. (If unit does not ignite first time
it will spark again after 10 seconds).
If unit still does not ignite, there may be
air in the gas line, turn control “OFF”
then “ON” again.
Check pressure, regulator is factory set,
if pressure is incorrect, check supply
before altering regulator.
Turn control to “OFF” position, remove
pressure gauge and replace test point
screw.
Re-light unit, on “HI” setting. Slide
thermostat control slowly towards the
“LO” position, the heater will cut down,
then cut out.
(Depending on the room temperature).
*Turn the power off. Replace the casing.
Turn power on.
Recheck operation.
Wall Bracket
Fit top rear cover and engage tongue into
wall bracket to secure top of heater.
(3 screws in top back cover).
5
- 18-