Draft Control

Draft Control Operation, Maintenance and Parts Manual Hawk ICS and Stand Alone Addendum to Manual Part # 750-229, 750-228 and 750-217 Please direct purchase orders for replacement manuals to your local Cleaver-Brooks authorized representative.
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Draft Control Damper

The Type RC is calibrated to allow for easy adjustment to the furnace or boiler manufacturer's specifications. Designed for settings from. 08″, this control is so sensitive that instrumentation should be used when adjusting the unit during installation.

Introduction

Boilers must maintain a proper flue draft for efficient combustion; too little draft can result in condensation, CO formation, flue gas spillage, and soot formation. Too much draft results in lost thermal energy from the boiler and higher electrical usage by the vent fan.

Gravity / barometric pressure systems must be over-sized in order to function in the worst conditions. This leads to wasted energy and higher installation costs. Fixed speed power vent systems also waste energy by not being able to adjust to actual conditions.

A new system with pressure and flow control switches and a variable speed fan match vent needs to conditions minimizing energy losses.

Operation

From the Exhausto web site:

The rudimentary mechanical draft assist is a single speed fan that delivers a pre-set volume of air and utilizes a barometric damper for relief should the mechanical draft become too strong. Their design makes them rather inefficient and limits their application to certain types of chimney designs.

Today’s constant pressure chimney automation systems have the ability to control, monitor and maintain pre-set draft requirements by varying the flow. By controlling the draft completely, we can reduce the need for combustion air and can apply the system to virtually any stack design.

EXHAUSTO’s Chimney Automation System (CASV) is for installation and use with multiple and/or modulating boilers and water heaters. It can be used in conjunction with almost any type of appliance and fuel, whether it is forced draft, atmospheric or condensing design.

The Chimney Automation System maintains a perfect, constant draft for the appliances by modulating the chimney fan capacity. The system is activated when there is a call for heat. It will create and maintain a pre-set draft prior to or immediately after the appliance fires.

The system monitors the draft condition at any time and has an integrated safety function. Should the draft fall more than 40% below the set point for more than 12 seconds, it will deactivate the appliances to prevent a potentially hazardous situation.

Advantages to using a chimney automation system are as follows:

Improved Aesthetics – A chimney automation system can improve the look of a building by hiding the stack. Tall stacks are no longer required allowing for terminations at the roof level.
Cost Savings – the overall cost of an installation can be reduced. The stack will not need to be as tall or the diameter as wide compared to conventional gravity venting. In many cases sidewall venting can be utilized as well.
Improved Safety – the risk of carbon monoxide spillage is eliminated with the use of a chimney automation system. In fact the Exhausto system includes a spillage-warning device as a standard feature.
Design Freedom – no longer are designers limited as to how the venting system is to be incorporated into their plan. The use of the automated chimney system ensures proper draft and because it is an engineered system it meets with code requirements for the gravity system.
Operational Savings – By controlling the draft across all operating conditions, boilers will operate at peak efficiency and provide a significant saving for the owner.

From Hays Cleveland

The following burner operating difficulties can result from uncontrolled draft:

Pilot fails to light
Unstable pilot – tendency to drift from scanner and cause nuisance shut-downs
Pilot deflected from main fuel injection, delaying light-off and resulting in starting puff or possible explosion
Lack of flame retention – causing momentary loss of flame-sensing signal and “flame failure” shut-down
Abnormal flame pulsation’s setting up harmonic vibrations that create an unbearable noise nuisance and can cause damage to boiler and breaching
Excess draft causing fan volume delivery to increase and excess air creates an envelope around flame, chilling ends and causing heavy sooting.

More Information

Manufacturers

EXHAUSTO, Inc.
1200 Northmeadow Parkway, STE 180
Roswell, Georgia, 30076
Telephone: 800-255-2923 FREE • 770-587-3238
Fax: 770-587-4731

Go to their web site at http://us.exhausto.com

Hays Cleveland
1903 South Congress Avenue
Boynton Beach FL 33426
Telephone: 561-734-9400
Fax: 561-734-8060

Go to their web site atwww.hayscleveland.com

Source: http://www.mckenziecorp.com/boiler_tip_9.htm 2-2005; http://us.exhausto.com/casv.asp; Hays Cleveland web site 2-2005; compiled and edited by Bob Fegan 2-2005;

Air Conditioning Repair & Maintenance

Draft Control’s professionals know heat, and the summers that are characterized by high and humid temperatures. When the warm weather starts, be certain that your A/C works and is operating optimally to keep your home comfortable. We can perform any repairs and maintenance on your air conditioner. We also install new air conditioners.

Furnace Repair & Maintenance

Are you looking for a quality furnace repair service from a local East Ottawa based company? Draft Control Heating and Cooling offers quick, dependable furnace repair and maintenance services. We do our best to return you to your highest comfort level through honest, quality workmanship.

Water Heater Repair & Maintenance

It doesn’t matter what kind of hot water heater repairs your home or business may need: electric hot water heater repair, gas water heater repair, tankless water heater repair, and even emergency water heater repair, Draft Control technicians work on all brands.

Gas Fireplace & BBQ Repair

Finding an issue with your gas fireplace or gas BBQ when you are ready to enjoy it is most certainly a buzz kill. Draft Control specializes in the repair and maintenance of fuel-burning appliances. Our TSSA certified technicians will be able to diagnose any problems your fireplace may be having and repair them.

Family Owned And Opperated

We focus on the customer — not the brands they carry.

If you want the most reliable heating and cooling Ottawa has to offer, contact Draft Control. Draft Control understands how important it is to get your heating and cooling repairs as quickly as possible, especially during the extreme winter and summer temperatures in the Ottawa area.

That’s why when you call Draft Control, we will come to your home as soon as possible. Our experienced technicians will quickly diagnose your problem and get you up and running again.

We fix every make and model of furnace and air conditioners, including Bryant, Carrier, Lennox, Trane, Ruud, Coleman, York, Goodman, and more. No matter what type of unit you have, we will get it repaired fast and at a price you can afford.

MILITARY DISCOUNT

We are proud to offer a 10% discount for military personnel. Contact us today to learn more.

Furnace Care

It’s best practice to change the filter on your furnace quarterly with fan set for “auto”. If the fan is on continuous, change the filter every 30 to 45 days.

Air Conditioner Care

For optimal cooling and energy efficiency, the coolest you should set your air conditioner is to 25.5C (78° F).

Gas Fireplace Care

Insects, like spiders, love the smell of gas. They’re often found in the pilot assembly. Keeping your pilot lit all year round can prevent costly repairs.

Draft Control Heating and Cooling. Has been our contractor for the last 3 years, and they do a very Professional Service. High Quality, Rapid Service, Knowledgable, Efficient, Honestly Priced, and Friendly. I Definitely would recommend Draft Control Heating and Cooling for your household or business needs.
Philippe Bisson
4/26/2020
Selim was responsive, and quickly ordered the OEM replacement for our furnace for less than what we were quoted by a different company. He arrived on time and had the work done quickly. We will use his services in the future.
Simon
7/09/2020
My hot water tank stopped working on a Saturday. Selim was able to diagnose the problem over the phone and came to fix my tank same day. Friendly, honest person with knowledgeable advice. Highly recommended. I will stick with Draft Control for my service work from now on.
Michael Lee
7/20/2019
When our furnace stopped working late in the evening (9pm), we called Selim and within 10 minutes he was at our house. Within an hour, he had completed diagnostics and repairs and our furnace was working again. On top of that, he took the time to explain the entire process in layman's terms while he worked. Very friendly and helpful.
Jayson Fast
12/22/2019
Salim fixed my 30 year old AC effectively and economically. He attempted NO sales of a new unit which is usually the red flag of a sales guy in disguise as a repair expert. Excellent customer service.
Shoeb H.
8/31/2020
One day this past summer, my AC failed to turn on. A friend recommended to contact Draft HVAC, the next day Selim was at my house and 20 minutes later my AC was up and running. He explained the issue and seemed to be honest and up front regarding what needed to be done. I will use his services again in the future. Recommend!
Alexei Baturin
12/01/2019

Financing

Draft Control Damper

We now offer financing through EcoHome Financial