Lennox International Inc Lennox CompleteHeatTM COMBINATION HEATING SYSTEM manual

Models: Lennox CompleteHeatTM COMBINATION HEATING SYSTEM

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HOW THE CompleteHeatTM SYSTEM WORKS

HOW THE CompleteHeatTM SYSTEM WORKS

The CompleteHeat system consists of a heating module (HM30) that produces hot water and an air han￿ dling module (AM30) that sends warmed air through the home's duct system. The two modules may be installed together (close￿coupled) or apart (remote).

The system's operation begins when cold potable water fills the water storage tank through the pipe at the top of the HM30 unit. When heat is needed to produce warm water or air, the HM30 control tells the combustion air blower to draw in outside air for use in combustion. After a short safety delay, a fuel mix￿ ture is sent into the burner where it is ignited by an electronic spark. Burning fuel moves through the stainless steel heat exchanger inside the water storage tank. The water surrounding the heat exchanger is heated until the water temperature reaches the desired setpoint on the water thermostat dial.

Combustion products travel out of the heat exchanger, condensate water is drained, and exhaust gases are vented safely to the outdoors. Hot water is directed from the HM30 to faucets, shower heads, and appliances (such as the dishwasher and washing machine) through the plumbing located on top of the HM30 unit.

When the room thermostat senses a need for heat, the AM30 water circulating pump draws hot water from the HM30 heating module and routes it through the AM30 space heating coil. The aluminium and copper coil absorbs heat from the water. The blower turns on, blowing air across the heated coil. Warmed air is sent through the air duct system into the home. Water circulates back to the HM30 unit to be reheated until the room temperature reaches the thermostat setting.

CompleteHeat Typical Applications

Upflow Close#Coupled Installation

Horizontal Remotely Located Installation

with Cooling Coil

with Cooling Coil

 

 

Air Conditioner

 

 

AM30

 

 

Air Handling

 

 

Module

 

 

HM30

 

 

Heating

 

 

Module

AM30

HM30

 

Air Handling

Heating Module

Air Conditioner

Module

 

 

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Lennox International Inc Lennox CompleteHeatTM COMBINATION HEATING SYSTEM manual HOW THE CompleteHeatTM SYSTEM WORKS