GAS PRESSURE SETTING

The working gas pressure on the water heater is electronically controlled and factory set. Under normal circumstances it does not require adjustment during installation. Perform this procedure only if the unit is not operating correctly and all other possible causes for incorrect operation have been eliminated, or you have

converted the Gas Type.

Contact Rinnai UK before attempting to alter the gas pressure.

Turn the appliance to the OFF position.

1. There are two test points, one on the heat exchanger, one

Adjusting screw

on the gas manifold. Connect a differential pressure gauge

 

between both test points. (Connect one side of the gauge

Manifold

Gas Valve

to one point, the other side of the gauge to the other). If

Test

you are using an electronic manometer, connect the -

point A

side to the heat exchanger test point.

Test point B

 

2. When the unit has completely stopped press and hold the SW1 test switch at the top of the PCB until it beeps.

3.Select the correct gas type code on the LED display using UP and DOWN arrow buttons. Current selected gas type will be indicated.

L1: LPG gas, short flue

L2: LPG gas, extended flue over 2.0m

A1: Nat. Gas, short flue

A2: Nat. Gas, extended flue over 2.0m

TEST SW(SW1)

4.After selecting the appropriate gas setting above, press the SW1 test button to record the gas type code into the memory. The

LED will then display the F1 for proper Flue Block Function. If it is not, set the display to the F1 by using the UP and DOWN arrows.

5.Press the SW1 test button to enter the proper Flue Block Function into memory.

6.Next the Temperature Classification code will appear on the LED display. Using the UP and DOWN arrows select Celsius.

7.Press the SW1 test button to enter your selection into the memory.

 

Set Temp

THE LED DISPLAY TURNS BLANK AND THE UNIT RETURNS TO

RoomTemp

 

THE NORMAL OFF MODE. YOU ARE NOW READY TO

Temp

PROGRAM IN YOUR CORRECT LOW FIRE AND HIGH FIRE GAS

Control

PRESSURE SETTINGS. FOLLOW PROCEDURE BELOW FOR

 

SETTING THE MANIFOLD DIFFERENTIAL GAS PRESSURE. DO

 

NOT ADJUST GAS PRESSURE ON THIS APPLIANCE USING THE APPLIANCE REGULATOR SCREW.

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Rinnai RHFE-308 FTR user manual GAS Pressure Setting
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RHFE-308 FTR specifications

The Rinnai RHFE-308 FTR is an advanced heating appliance designed to deliver efficient and comfortable warmth, especially in residential settings. It has become a popular choice for homeowners seeking reliable heating solutions that also emphasize energy efficiency and sustainability.

One of the standout features of the Rinnai RHFE-308 FTR is its innovative technology known as "Flue Gas Heat Recovery." This technology allows the heater to utilize the heat generated by combustion to enhance the overall efficiency of the unit. By capturing and repurposing flue gases, the RHFE-308 FTR can provide superior heating performance while minimizing energy waste, making it an environmentally friendly option.

The unit is equipped with a powerful burner system that generates impressive heat output while maintaining low emissions. This not only ensures effective heating but also complies with stringent environmental regulations, contributing to a cleaner atmosphere. Additionally, the Rinnai RHFE-308 FTR is designed to operate quietly, allowing homeowners to enjoy a warm and peaceful environment.

Ease of use is another appealing characteristic of the RHFE-308 FTR. It features a user-friendly control panel, which allows for precise temperature adjustments. Homeowners can set their desired comfort level with just a few simple clicks. This model also includes programmable timer options, enabling users to schedule heating times that align with their daily routines, further enhancing convenience and energy savings.

The compact and sleek design of the RHFE-308 FTR ensures that it can easily blend into various interior styles without looking out of place. It’s also lightweight, making installation straightforward for both professional technicians and savvy DIY enthusiasts. The unit’s construction emphasizes durability, featuring high-quality materials that ensure longevity and reliable performance over time.

Safety is a paramount consideration in the design of the Rinnai RHFE-308 FTR. It comes with multiple safety features, such as overheat protection and a child safety lock, providing peace of mind for families.

Overall, the Rinnai RHFE-308 FTR stands out as a versatile and efficient heating solution. With its advanced technology, user-friendly features, and emphasis on safety, it offers a comfortable and reliable heating experience for modern homes.
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