Rinnai FC510N, FC510P, FC824N, FC824P User Manual

Rinnai

Fan Convector Heaters

Level III Training

1

Fan Convector Heaters

FC510 (RCE-391A) FC824 (RCE-691TA)

Internal Components

FC510 (RCE-391A) FC824 (RCE-691TA)

Specifications

Model Gas Type

Input Rating

Btu/hr. HIGH

Input Rating

Btu/hr. LOW

Gas Inlet Pressure

Manifold Pressure
HI/LO Inches W.C.

(mm)

Fan Motor

CFM HI/LO

Fuse

(Amps)

FC510N

(RCE-391AN)

Natural Gas 10,000 5,500

3.5 – 10.5

inches W.C

(89 – 267 mm W.C)

1.8 / 0.64 inches W.C.

(47 / 16.3 mm W.C.)

67.8 Low

97.8 High 5

FC510P

(RCE-391AP)

Propane Gas 10,000 5,600

8.0 -

13.0 inches W.C.

(203 - 330 mm W.C.

3.2 / 1.12 inches W.C.

(82 / 28.6 mm W.C.)

67.8 Low

97.8 High
5

FC824N

(RCE-691TAN)

Natural Gas 24,000 8,400

5.0 – 10.5

W.C

(127 - 267 mm W.C)

3.4 / 0.52 inches W.C.

(87 / 13 mm W.C.)

109.5 Low

215.4 High

5

FC824P

(RCE-691TAP) Propane Gas 22,000 8,000

8.0 -

13.0 inches W.C.

(203 - 330 mm W.C.)

6.3 / 1.00 inches W.C

(161 / 25.5 mm W.C.)

109.5 Low

215.4 High

5

Product specifications

FC510 (RCE-391A) FC824 ( RCE-691TA)

Gas Connection 1/2" Male NPT 1/2" Male NPT

Gas Control Electronic Electronic

Burners Ceramic Burner Ceramic Burner

Temperature Control Electronic Thermostat Electronic Thermostat

Ignition Sdystem Electronic Spark Ignition Electronic Spark Ignition

Electrical Connection AC 120V, 60 Hz., 19 Watts AC 120V, 60 Hz., 29 Watts

Weight 22.1 Lbs. (10kg) 26.5 Lbs. (12kg)

Dimensions

Height: 19.4 Inches (492 mm)
Width: 19.2 inches (487 mm)

Depth: 9.6 inches (244 mm)

Height: 19 Inches (482 mm)
Width: 24 inches (610 mm)

Depth: 9.4 inches (239 mm)

Efficiency 99.90% 99.90%

Clearances

Front 2"

Side 2"

Top 2"

Back 2"

Front 2"

Side 2"

Top 2"

Back 2"

Specifications

Component/Clearance Specifications

• The letters “RCE” indicates this is a “Rinnai Convection Export” heater.

• The numbers “510 & 824” indicate the model number of heater.

• The letter “T” indicates duel timers on 824 model, no “T” indicates single timer on 510 model.

• The letter “A” indicates this is an American version.

• The “FC” indicates Fan Convertor Heater.

• These units are not suitable for use in bathrooms or bedrooms. Vent-free heaters installed in

bathrooms and/or bedrooms must be wall mounted. This product can not be wall mount at the

present time.

• Product warranty – 3 year parts, no labor.

Ledger Plate Explanation & Warranty

1. Convection fan starts, drawing air in through

the back of the cabinet and across the heat

exchanger / burner chamber and out into the
space. The PCB verifies fan rotation.

2. Once the fan is running at the proper speed,
spark ignition begins.

3. After spark begins, the gas valve solenoids
open allowing gas into the burner.

4. Ignition occurs and flame develops across the
burner.

5. The PCB will verify flame with thermocouples

and turn off the sparker.

6. Warm air then begins to flow into the space.

7. PCB will determine gas input and fan speed
settings based on the room temperature
measurement from the room thermistor.

8. When thermostat set point is reached the gas

valve solenoids close. The combustion fan will
continue to run to cool down the unit.

9. When the room temperature drops below the
set point, the process will start again.

Sequence of Operation

Spark
Electrode

P
C
B

Room
Temperature
Thermistor

POV SV1

Thermocouple 2

Convection

Fan Assembly

Thermocouple 1

Gas Valve
Solenoids

Combustion

Chamber

8

• Variable speed technology – Modulating gas and air based on the heat loss at that moment

74°

72°

70°

68°

66°

74°

72°

70°

68°

66°

On / Off Single Stage Heating Appliance

Continuous-Run Modulating Technology

Gas

Usage

Gas

Usage

Gas

Usage

Continuous gas usage but at much lower levels

• With on/off single stage operation, gas usage

can be high due to alternating periods between
maximum flame and no flame at all

• The Fan Convector modulating technology has the

ability to replace only the heat escaping the
structure by continuously operating at heating levels
based on the demand at that moment

• This results in different layers of temperatures
throughout the structure leading to a less than
comfortable living environment

• This leads to lower gas usage and higher levels of comfort.

Modulating Technology

Note; if the “Auto Off” function is not selected the unit will
run continuously no matter what the room temperature is.

• Do not install this appliance above 2,000ft.

• Do not block the warm air discharge.

• Do not allow anyone to sleep directly in front of the appliance.

• Do not insert items into the louvers.

• Do not place clothing or other flammable material on or near the appliance

• Do not spray aerosols near the appliance while it is operating. Most aerosols contain butane gas

which is flammable.

• Do not install this appliance in areas where spray painting or plating is taking place, or in places such

as hair salons where there may be large amounts of dust, chemical residue, or debris. Using the
appliance in such areas may result in strong odors or irritated eyes and sinuses.

• Do not sit on the appliance.

Installation Instructions

• Do not unplug the appliance while it is operating or while the fan is on.

• Do not use a plug in type timer with this appliance.

• Do not install in a windy area such as facing a window or a door leading to the outside.

• Do not recess this appliance or mount it directly in a wall

• If the flooring is carpet, tile, or other combustible material other than wood, then the appliance

must be installed on a metal or wood panel extending the full width and depth of the appliance.

• This appliance discharges a large volume of warm air next to the floor. Any particles in the air

such as cigarette smoke, lint, dust, or debris could cause discoloration in nylon carpets
containing dyes or vinyl surfaces.

• Rinnai suggests that a dedicated electrical circuit with a 120VAC, 60 hz, 10 amp power source be

used.

• The flow of combustion and ventilation air shall not be obstructed.

• Note that in some regions, an unvented gas heater will increase the amount of humidity in the

room.

Installation Instructions

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• Check Federal, State and/or local codes in your state before using vent-free products. Some

areas of the country do not allow vent-free products.

• International Fuel Gas Code Standard 620-6 under “Prohibited Use” states that; “One or more

unvented room heaters shall not be used as a sole source of comfort heating in any dwelling

unit”. Refer to the International Fuel Gas Code and International Fuel Gas Standard, Charter 6,

section 6-11, standard 620-2 for conformation of the above statement.

• Code pertaining to bathroom installations. Refer to the 2000 International Fuel Gas Code,

section 303.3 “Prohibited locations”. under Exception 3. for prohibited use when installing
unvented heaters in a bathroom. It states, “A single wall mounted unvented room heater

equipped with an oxygen depletion safety shutoff system and installed in a bathroom

provided that the input rating does not exceed 6000 Btu per hour (1.76kW) and the bathroom
is not a confined space”.

• Code pertaining to bedroom installations. Refer to the 2000 International Fuel Gas Code,

section 303.3 “Prohibited locations”. under Exception 4. for prohibited use when installing
unvented heaters in a bedroom. It states, “A single wall mounted unvented room heater

equipped with an oxygen depletion safety shutoff system and installed in a bedroom provided
that the input rating does not exceed 10,000 Btu per hour (2.93kW) and the bedroom is not a
confined space”.

• The contractor installing this equipment has the responsibility to ensure the product being

installed meets all local and State building codes. Please check with your local code officials if

you have any questions related to vent-free products.

Code Limitations

Servicing Fan Convector

There’s very little service required on the Fan Convector heaters. Below you will find three items that

can be checked and/or cleaned in the event you are experiencing problems with you appliance.

NOTE; ALL Service must be performed by a qualified installer, service agency or gas technician.

1. Gas control valve – The gas valve can be checked by verifying the manifold gas pressures are properly set. The
manifold gas pressure setting procedures can be found in the technical data sheet under the unit’s front cover.

2. Burner Assembly – The burners are ceramic type burners and should never fail if the unit is not over fired
for any reason, dropped or abused. I would recommend that the burner compartment be blown out with

compressed air (120 psi) at least annually. This will clear out any foreign matter that has been drawn into the

combustion chamber. Low pressure blowers do not generate enough air pressure to properly clean the burner. See
the parts breakdown in the Owner’s manual for directions on how to remove the burner’s top plate in order to
access the burner.

3. Annual Cleaning – Rinnai recommends that you blow out all compartments inside the unit. In addition, blow out

the squirrel cage fan. Care should be taken when blowing out the fan. Keep the air nozzle at least twelve inches

away from the fan when blowing it out. Otherwise, high pressure air will cause damage to the fan blades.

Maintenance

Cleaning Air Filters:
Both air filters should be cleaned frequently

during the heating season.

1. Unscrew the black cap (Phillips screw in the
center of large filter) securing the air filter.
Pull the filter up and away from the unit.

2. Remove the small filter simply by pulling the
two tabs away from the unit.

3. Place both filters in warm water and wash

all dust and dirt out the filter.

4. Dry filter with a soft cloth. Make sure they
are dried completely before reinstalling in
the reverse order as above.

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2

Error Codes

&

Troubleshooting

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