TROUBLE- SHOOTING

Continued

OBSERVED

POSSIBLE

 

 

PROBLEM

CAUSE

REMEDY

 

 

 

 

 

ODS/pilot lights but

1.

Control knob not fully

1.

Press in control knob

flame goes out when

 

pressed in

 

fully

control knob is

2.

Control knob not

2.

After ODS/pilot lights,

released

 

pressed in long enough

 

keep control knob

 

 

 

 

pressed in 10 seconds

 

3.

Manual shutoff valve

3.

Fully open manual

 

 

not fully open

 

shut-off valve

 

4.

Thermocouple connec-

4.

Hand tighten until

 

 

tion loose at control

 

snug, then tighten 1/4

 

 

valve

 

turn more

 

5.

Pilot flame not touch-

5.

A) Contact local

 

 

ing thermocouple,

 

natural gas company

 

 

which allows thermo-

 

 

 

 

couple to cool, causing

 

B) Clean ODS/pilot

 

 

pilot flame to go out.

 

(see Cleaning and

 

 

This problem could be

 

Maintenance, page 20)

 

 

caused by one or both

 

or replace ODS/pilot

 

 

of the following:

 

assembly

 

 

A) Low gas pressure

 

 

 

 

B) Dirty or partially

 

 

 

 

clogged ODS/pilot

 

 

 

6.

Thermocouple dam-

6.

Replace thermocouple

 

 

aged

 

 

 

7.

Control valve damaged

7.

Replace control valve

 

 

 

 

 

Burner(s) does not

1.

Burner orifice(s) is

light after ODS/pilot

 

clogged

is lit

 

 

 

2.

Burner orifice(s)

 

 

diameter is too small

 

3.

Inlet gas pressure is

 

 

too low

1.Clean burner orifice(s) (see Cleaning and Maintenance, page 20) or replace burner orifice(s)

2.Replace burner orifice(s)

3.Contact local natural gas company

Delayed ignition of

1.

Manifold pressure is

burner(s)

 

too low

 

2.

Burner orifice(s) is

 

 

clogged

1.Contact local natural gas company

2.Clean burner orifice(s) (see Cleaning and Maintenance, page 20) or replace burner orifice(s)

22

Burner backfiring

1. Burner orifice(s) is

during combustion

clogged or damaged

2. Burner damaged

3. Gas regulator defective

1.Clean burner orifice(s) (see Cleaning and Maintenance, page 20) or replace burner orifice(s)

2.Replace burner

3.Replace gas regulator

100845

Page 22
Image 22
Vanguard Heating VN12A, VN6B installation manual TROUBLE- Shooting, Maintenance

VN6B, VN12A specifications

The Vanguard Heating VN6B and VN12A represent cutting-edge solutions in residential heating technology. Designed to meet a variety of heating needs, these systems combine efficiency and user-friendly features, catering to an increasingly eco-conscious market.

The VN6B model is ideal for smaller homes or spaces, boasting a compact design without sacrificing power. It uses advanced condensing technology, which allows it to achieve impressive efficiency ratings. With an Annual Fuel Utilization Efficiency (AFUE) of up to 96%, the VN6B maximizes heat output while minimizing fuel consumption. This leads to significant cost savings on heating bills, making it an attractive choice for homeowners looking to upgrade their heating systems.

Meanwhile, the VN12A is built for larger areas, providing robust heating solutions for bigger residential spaces. With similar condensing technology, it features an AFUE rating that matches its smaller counterpart, ensuring that it also operates with remarkable efficiency. The VN12A is engineered with a modulating burner, which adjusts the flame size according to the building’s heating needs. This means it can operate quietly and smoothly, offering comfort without the jarring temperature fluctuations that other systems may create.

Both models incorporate innovative safety features, including a built-in flue gas condensation sensor that ensures safe operation under varied conditions. Additionally, they include a user-friendly digital thermostat, which enables precise temperature control and can be programmed for optimal efficiency. Homeowners can easily customize their heating schedule, making it convenient to maintain a comfortable living environment while also conserving energy.

Another notable characteristic of the Vanguard VN6B and VN12A is their durable construction. Made from high-quality materials, these heating units are designed to withstand wear and tear, ensuring a long lifespan with minimal maintenance. Regular maintenance reminders are a feature, making it straightforward for homeowners to keep track of service needs.

In summary, the Vanguard Heating VN6B and VN12A models stand out in the market for their exceptional efficiency, smart technologies, and user-centric features. They are excellent choices for homeowners seeking reliable and environmentally friendly heating solutions that promise comfort year-round, all while keeping energy costs low.