Low Draft Voltage Adjustment

11

 

 

Combustion Motor Speed Control

Low draft only set point.

The small straight screwdriver slot is plastic; therefore, the unit can be adjusted while in operation.

Fig. 18

Draft Meter bolt hole location

Fig.17

These units are pre-tested at the factory with exactly 120 Volts A.C., 60 Hz. They are checked and adjusted for firebox tightness, gasket leakage, motor operation and ignitor operation. The Accentra is then factory set at a high adjustment. NOTE: Low draft adjustment maybe required. The factorylow draft setting maynot be correct for the units permanent installation conditions.

The control board on the Accentra is equipped with a low draft adjustment port. Located on the control face just to the left of the ignitor light. See Figure 17. This voltage adjustment is provided to allow the unit to be adjusted for the household voltage where the unit is going to be in permaneant operation. NOTE: The line voltage varies from area to area and often home to home.

The low draft voltage should be adjusted to achieve the most efficient burn on low burn or "maintenance". This voltage adjustment allows the installer to change the low voltage set point approximately 15 volts. This adjustment should be done by the installer during set up because a draft meter reading is required to insure proper set up.

If the unit is not adjusted properly, it does not cause a safety concern. If the unit is adjusted too high, only effiency is lost. If the unit is adjusted too low, the low draft pressure switch will not allow the feeder motor or the ignitor to operate.

A simple draft test should be performed after completing the flue pipe installation. To record the results for future reference:

1.Plug unit into a 120VAC, 60 HZ outlet.

2.Close the hopper lid and front view door. Neither pellets or a fire are required for this test.

3.With the mode selector in the "OFF" position, turn the feed adjuster to "TEST".

4.Record the high draft_____in. W.C. (Normal is -

.45 to -.55) The control will be on the High Draft for a total of 2 minutes.

5.After 2 minutes is up, the combustion motor will go down to low draft and the distribution blower will go on high. Allow approximately 15 seconds to pass for the combustion motor to slow before checking the low draft.

6.If the low draft is between .30 and .35, record the reading _____ in. W.C. If the reading is higher, slowly turn the set screw counter-clockwise until the draft lowers. If the reading is lower, very slowly turn the set screw clockwise until the draft increases.

NOTE:The test mode alternates from high to low draft every 60 seconds. If more time is needed for draft adjustment, wait until the next low draft cycle.

NOTE: In some cases, the draft may not go as low as .30 even with the set screw completely counter-clockwise.

Page 10 Page 12
Page 11
Image 11
Harman Stove Company 2 manual Low Draft Voltage Adjustment, Combustion Motor Speed Control Low draft only set point
Page 10 Page 12

2 specifications

Harman Stove Company 2 has earned a reputation as a leader in the hearth products industry, particularly known for its innovative approach to pellet stoves and inserts. Established with a commitment to quality and efficiency, Harman focuses on creating products that elevate comfort while being environmentally sustainable.

One of the standout features of Harman Stove Company 2 is its advanced heating technology. Their pellet stoves utilize a unique feed system that ensures consistent fuel delivery, which translates to reliable, even heat output. The integrated Smart Control technology allows users to easily adjust settings remotely, providing the convenience of controlling the stove from their smartphones.

Notably, Harman stoves come equipped with the exclusive Heat Management System (HMS), which helps to distribute warmth throughout the home effectively while optimizing fuel consumption. This system includes adjustable air intake and exhaust options that enhance efficiency, ensuring that less fuel is wasted and more heat is produced.

Durability is another hallmark of Harman's products. Each stove is constructed with high-quality materials, including rugged cast iron and heavy-gauge steel, designed to withstand the test of time while providing excellent heat retention. The company takes pride in its craftsmanship, offering stoves that not only perform exceptionally well but also boast a stylish appearance.

In terms of efficiency, Harman Stove Company 2 focuses on creating products with high efficiency ratings and low emissions. Many of its models are certified by the Environmental Protection Agency (EPA), showcasing their commitment to reducing the environmental impact. Harman's engineering innovations minimize particulate emissions, ensuring that customers can enjoy the warmth of their stove while being environmentally conscious.

Safety is also paramount; Harman stoves come with features such as automatic shutoff systems and heat-resistant glass, providing peace of mind for users. The company's dedication to safety is evident in its rigorous testing processes that ensure every product meets high safety standards.

Overall, Harman Stove Company 2 has successfully combined advanced technology, durable construction, and a focus on environmental stewardship to produce a line of heating solutions that cater to modern consumer needs. Offering reliability, efficiency, and style, Harman continues to be a trusted name in the industry, providing warmth and comfort in homes across the nation.
Top Page Image Contents