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HOW THE CompleteHeat

TM

 SYSTEM WORKS

The CompleteHeat system consists of a heating module (HM30) that produces hot water and an air hanĆ
dling module (AM30) that sends warmed air through the home's duct system. The two modules may be
installed together (closeĆcoupled) 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 mixĆ
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 CloseĆCoupled Installation

with Cooling Coil

Horizontal Remotely Located Installation

with Cooling Coil

Air Conditioner

Air Conditioner

AM30

Air Handling

Module

HM30

Heating Module

HM30

Heating

Module

AM30

Air Handling

Module

All manuals and user guides at all-guides.com

Summary of Contents for CompleteHeat

Page 1: ...N HEATING SYSTEM PRODUCT LITERATURE 1997 Lennox Industries Inc Litho U S A SYSTEM OPERATION MAINTENANCE SAFETY CONSIDERATIONS 503 718M 6 98 Supersedes 8 97 All manuals and user guides at all guides co...

Page 2: ...30 The two units work together to provide warm air like a furnace and hot potable water like a hot water heater The CompleteHeat sys tem takes care of these needs while being up to 40 more efficient t...

Page 3: ...at 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...

Page 4: ...and 4 out of children s reach Vapors 1 cannot be seen 2 are heavier than air 3 go a long way on the floor and 4 can be carried from other rooms to the heater by air currents FOR YOUR SAFETY Do not sto...

Page 5: ...t force 6 Turn on all electrical power to system 7 Set room thermostat and water temperature dial to desired settings NOTE When unit is initially started steps 1 through 7 may need to be repeated to p...

Page 6: ...tat does not have ON or CONT settings and the continuous fan option is desired ask your dealer about an optional continuous fan switch In high humidity areas the continuous fan operation tends to incr...

Page 7: ...ves These valves help reduce the risk of scalding KEEPING YOUR SYSTEM IN TOP FORM HM30 Tank Draining Procedure It is recommended that 5 to 10 gallons of water from the HM30 tank be drained every six m...

Page 8: ...is in the air module it may be inside the unit behind an access panel or located on the side of the unit in an external filter rack If replacement is necessary always replace it with the same type of...

Page 9: ...me caution when discharging valve Re placement of T P valve should be done by a trained professional or a licensed plumb ing contractor T P valve testing should be done annual ly Remove HM30 top acces...

Page 10: ...d be in the ON position 4 Replace any blown fuses or reset circuit breakers 5 Air filter should be clean To keep your heating and cooling system running in peak operating condition year after year con...

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