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OPERATION, SIZING AND
INSTALLATION MANUAL
CLEAN AIR FURNACE
NOW MANUFACTURED WITH
AIRCOM ELECTRONICS
NOTE: ALTHOUGH SOME MODELS DIFFER IN OPERATION,
THE BASIC STEPS ARE SIMILAR.
CAUTION
It is always important to assess how the operation of any HRV/ERV may interact with vented combustion equipment (ie. Gas
Furnaces, Oil Furnaces, Wood Stoves, etc.).
NEVER install an HRV/ERV in a situation where its normal operation, lack of operation or partial failure may result
in the backdrafting or improper
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Table of Contents Introduction ............................................................................................................ 3 Description and Purpose ........................................................................................ 4 Combo System Basic Principle ................................................................................ 5 Model Number Nomenclature Breakdown ...................................................................... 12 Specifications .....
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Introduction Congratulations on your selection of the LIFEBREATH Clean Air Furnace (CAF). This is a very advanced unit that combines the outstanding efficiency and economy of the water heater/airhandler concept, plus the tremendous health benefits of year-round fresh air ventilation in every room of your house. With the addition of LIFEBREATH Turbulent Flow Precipitator (TFP) Air Cleaner (optional) you will have the ultimate in comfort and healthy indoor air quality. You will notice that the hea
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Description and Purpose IMPORTANT NOTE Combining two or more end uses such as space The purpose of this manual is to act as an instal- heating and the heating of domestic hot water in lation guide only for the LIFEBREATH Clean Air a single system has the potential to increase effi- Furnace. Manufacturers' instructions for other ciency and reduce overall capital costs. However, components, such as the waterheater/boiler, must the proper design, installation, and commission- be followed. ing of th
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Combo System Basic Principles Closed/Open Combo System Therefore, an expansion tank (or equivalent From the aspect of delivery of domestic hot device) may be installed as part of any closed water and space heating, the Open and Closed system. The operations of the valve and systems operate the same. A system becomes expansion tank are discussed later in this closed when a backflow prevention valve or section of this manual. check valve is installed in the cold water piping upstream of the wat
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Call for Space Heating Only Air System Operation A circulation fan draws cool house air at approx. When the thermostat calls for heat, the 70˚F (21˚C) from the return ductwork, forces circulation pump is activated and hot water is it through the water coil where it is heated, and drawn from the top of the water heater through then distributes it to the various rooms of the the air handler, and then returned to the water house through the supply ductwork. heater. There should be at least a 20˚F
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Manual Valves There are a number of manual valves required for malfunction with age. Gate valves tend to be less the system to operate properly and safely. These expensive than the other type of valves. valves are used as shut off valves, drain valves and throttling valves. They can be globe, gate, The ball valve can be used as a shut off or drain ball or balancing type valves. valve but not a throttling (balancing) valve. When in the open position, a full bore ball valve has very The globe valv
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Shut Off Valves There are 3 shut off valves required for an system. The drain valve should be near the low integrated combo system as follows: point of the return piping system upstream of the shut off valve and is preferred to be near the water heater. • One valve (a) on the cold water side of the water heater upstream of the heating loop connection. This valve has the ability to isolate the hot water (domestic and space Throttling Valve heating) from the household cold water supply. This
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Expansion Tanks Note: There are a number of pressure balancing Expansion tanks are required for “Closed valves and mixing valves on the market which are Systems”(most municipal water systems are not certified as a anti-scalding device. closed systems). The expansion tank has an air bladder, which will contract to relieve pressure in the system. Pressure is created in the closed system when water is heated in the water heater. Expansion tanks should always be connected to Time to Scald the cold
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The hot water inlet temperature is typically 140˚F Water Heater Thermostat (60˚C). If this temperature must be increased to achieve higher outputs from the furnace The water heater thermostat is set by the an anti-scald valve must be used to prevent installing contractor to provide the required domestic hot water temperatures above temperature at the hot water outlet of the water 140˚F (60˚C). The manufacturer of the heater. It is important that a warning label be Hot Water Tank should be
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temperature is approx. 130˚F (54˚C) which is Note: The vertical height of the heating loop does 60˚F (15.5˚C) above the return air temperature. not impact on the head pressure as the pressure These units typically have a temperature rise of required to push the water up the vertical height is offset by the weight of the water 35˚F (2˚C) to 40˚F (4˚C) and therefore would in the vertical drop on the other side of the deliver air at the diffuser at approximately 105˚F heating loop. (40.5˚C) to 11
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Model Number Nomenclature Breakdown Example Model Number CAF - U - S2A - 24 - P16 Model Configuration CAF - Clean Air Furnace (Built-in HRV) AH - Air Handler (No HRV) Configuration U - Upflow D - Downflow H - Horizontal Hydronic Coil Size S2A - Small Coil - 2 Row (output chart A) S4A - Small Coil - 4 Row (output chart A) L2A - Large Coil - 2 Row (output chart A) L4A - Large Coil - 4 Row (output chart A) L2B - Large Coil - 2 Row (output chart B) 00 - No Hydronics (No Heating Coil, No Pum
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Specifications Model CAF-U-S4A-24-P16 Core Ventilation system has patented aluminum heat recovery core (standard) or an enthalpic energy recovery core (optional) for energy-efficient ventilation. Enthalpic cores are recommended for regions where the temperature does not drop below 25˚F (-4˚C). Filters Washable air filters in exhaust and supply air streams of ventilation section, 1" pleated in return plenum side. Case Prepainted galvanized steel for superior corrosion resist
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Specifications Model CAF-U-L4A-36-P16 Core Ventilation system has patented aluminum heat recovery core (standard) or an enthalpic energy recovery core (optional) for energy-efficient ventilation. Enthalpic cores are recommended for regions where the temperature does not drop below 25˚F (-4˚C). Filters Washable air filters in exhaust and supply air streams of ventilation section, 1" pleated in return plenum side. Case Prepainted galvanized steel for superior corrosion resistanc
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Specifications Model CAF-D-S4A-24-P16 Core Ventilation system has patented aluminum heat recovery core (standard) or an enthalpic energy recovery core (optional) for energy-efficient ventilation. Enthalpic cores are recommended for regions where the temperature does not drop below 25˚F (-4˚C). Filters Washable air filters in exhaust and supply air streams of ventilation section, 1" pleated in return plenum side. Case Prepainted galvanized steel for superior corrosion resistance. Dimensions &
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Specifications Model CAF-D-L4A-36-P16 Core Ventilation system has patented aluminum heat recovery core (standard) or an enthalpic energy recovery core (optional) for energy-efficient ventilation. Enthalpic cores are recommended for regions where the temperature does not drop below 25˚F (-4˚C). Filters Washable air filters in exhaust and supply air streams of ventilation section, 1" pleated in return plenum side. Case Prepainted galvanized steel for superior corrosion resistance.
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Specifications Model CAF-H-S4A-24-P16 Core Ventilation system has patented aluminum heat recovery core (standard) or an enthalpic energy recovery core (optional) for energy-efficient ventilation. Enthalpic cores are recommended for regions where the temperature does not drop below 25˚F (-4˚C). Filters Washable air filters in exhaust and supply air streams of ventilation section, 1" pleated in return plenum side. Case Prepainted galvanized steel for superior corrosion resistance.
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Specifications Model CAF-H-L4A-36-P16 Core Ventilation system has patented aluminum heat recovery core (standard) or an enthalpic energy recovery core (optional) for energy-efficient ventilation. Enthalpic cores are recommended for regions where the temperature does not drop below 25˚F (-4˚C). Filters Washable air filters in exhaust and supply air streams of ventilation section, 1" pleated in return plenum side. Case Prepainted galvanized steel for superior corrosion resistance.
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Specifications Model CAF-U-L2A-48-P16 Core Ventilation system has patented aluminum heat recovery core (standard) or an enthalpic energy recovery core (optional) for energy-efficient ventilation. Enthalpic cores are recommended for regions where the temperature does not drop below 25˚F (-4˚C). Filters Washable air filters in exhaust and supply air streams of ventilation section, 1" pleated in return plenum side. Case Prepainted galvanized steel for superior corr
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Specifications Model CAF-U-00-36-P16 Core Ventilation system has patented aluminum heat recovery core (standard) or an enthalpic energy recovery core (optional) for energy-efficient ventilation. Enthalpic cores are recommended for regions where the temperature does not drop below 25˚F (-4˚C). Filters Washable air filters in exhaust and supply air streams of ventilation section, 1" pleated in return plenum side. Case Prepainted galvanized steel for superior corrosion resistanc
