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Lifebreath 40DHW(T) - page 1
* LEA VE FOR HOMEOWNER NOTE: Due to ongoing research and product development, specifications, ratings and dimensions are subject to change without notice. CAF-02 0203 Installing Contractor T elephone / Contact Serial Number Installation Date Model TO BE COMPLETED BY CONTRACTOR AFTER INST ALLA TION OPERA TION, SIZING AND INST ALLA TION MANUAL F or M ...
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Lifebreath 40DHW(T) - page 2
T able of Content s Intr oduction ............................................................................................................ 3 Description and P urpose ........................................................................................ 4 Combo System B asic P rinciple .......................................................... ...
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Lifebreath 40DHW(T) - page 3
3 Introduction Congratulations on your selection of the LIFEBREA TH 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 LIFEBREA TH T ...
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Lifebreath 40DHW(T) - page 4
4 Description and Purpose IMPOR T ANT NOTE The purpose of this manual is to act as an installation guide only for the LIFEBREA TH Clean Air Furnace. Manufacturers' instructions for other components, such as the water heater/boiler , must be followed. All national and local code requirements must be met when installing a LIFEBREA TH Clean Air F ...
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Lifebreath 40DHW(T) - page 5
Closed/Open Combo S y stem From the aspect of delivery of domestic hot water and space heating, the Open and Closed systems operate the same. A system becomes closed when a backflow prevention valve or check valve is installed in the cold water piping upstream of the water heater . A backflow prevention valve will prevent the pressure created when ...
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Lifebreath 40DHW(T) - page 6
Call for Space Heating Only Oper ation When the thermostat calls for heat, the circulation pump is activated and hot water is drawn from the top of the water heater through the air handler , and then returned to the water heater . There should be at least a 20˚F (1 1˚C) temperature drop between the hot water supplied to the air handler and the re ...
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Lifebreath 40DHW(T) - page 7
Manual V alves There are a number of manual valves required for the system to operate properly and safely . These valves are used as shut off valves, drain valves and throttling valves. They can be globe, gate, ball or balancing type valves. The globe valve can be used as a shut off, drain or throttling valve. Even in the open position, the valve i ...
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Lifebreath 40DHW(T) - page 8
Shut Off V alves There are 3 shut off valves required for an integrated combo system as follows: • 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 heating) from the household cold water supply . This valve is required on every ...
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Lifebreath 40DHW(T) - page 9
Expansion T anks Expansion tanks are only required for “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 the cold water piping between the water heater s ...
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Lifebreath 40DHW(T) - page 10
W ater Heat er Thermostat The water heater thermostat is set by the installing contractor to provide the required temperature at the hot water outlet of the water heater . It is important that a warning label be place near the water heater thermostat telling the homeowner not to change the thermostat setting. The label is included with the furnace. ...
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Lifebreath 40DHW(T) - page 11
With an Integrated Combo System, the hot water temperature is approx. 130˚F (54˚C) which is 60˚F (15.5˚C) above the return air temperature. These units typically have a temperature rise of 35˚F (2˚C) to 40˚F (4˚C) and therefore would deliver air at the diffuser at approximately 105˚F (40.5˚C) to 1 10˚F (43˚C). Design vs. F ield Conditio ...
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Lifebreath 40DHW(T) - page 12
12 Model 40DHW V oltage 120 V AC 60 Hz Hp 1/3 Amps (total) 7 W ater 1/2" Copper Soldered Connections Connection Airflow (High) .25 in wg 1030 CFM .5 in. wg 890 CFM V entilation 100 - 140 CFM Airflow Effectiveness 70% (Aluminum Core) T otal Efficiency 50% (Enthalpic Core) Net W eight 150 lbs. Shipping W eight 165 lbs. Options 99-186 Weatherhood ...
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Lifebreath 40DHW(T) - page 13
13 Options 99-186 Weatherhoods, T wo - 6" c/w 1/4" mesh screen 99-130W Remote W all Mount Dehumidistat Control 24 V AC only 99-RSK6 6” back draft damper To p Side Front 29.5" 29.5" 19" 47.5" 6" 6" ® CLEAN AIR FURNACE 14" 12" 4" 19" 22.25" Duct (coil) Opening 17.25" V ent ...
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Lifebreath 40DHW(T) - page 14
14 Options 99-186 Weatherhoods, T wo - 6" c/w 1/4" mesh screen 99-130W Remote W all Mount Dehumidistat Control 24 V AC only 99-RSK6 6” back draft damper Side Front 29.5" 19" 47.5" 6" 6" ® CLEAN AIR FURNACE 14" 12" 4" To p 29.5" 22" 19" 14" Bottom 29.5" 19" 16" ...
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Lifebreath 40DHW(T) - page 15
15 Options 99-186 Weatherhoods, T wo - 6" c/w 1/4" mesh screen 99-130W Remote W all Mount Dehumidistat Control 24 V AC only 99-RSK6 6” back draft damper Side Front 29.5" 19" 47.5" 6" 6" ® CLEAN AIR FURNACE 14" 12" 4" To p 29.5" 22" 19" 14" Bottom 29.5" 19" 22.25&q ...
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Lifebreath 40DHW(T) - page 16
16 Options 99-186 Weatherhoods, T wo - 6" c/w 1/4" mesh screen 99-130W Remote W all Mount Dehumidistat Control 24 V AC only 99-RSK6 6” back draft damper Specifications Model 40DHWH (Horizontal) Cor e V entilation system has patented aluminum heat recovery core (standard) or an enthalpic energy recovery core (optional) for energy-efficie ...
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Lifebreath 40DHW(T) - page 17
17 Return Plenum Return Plenum 22” 29.5” 19” 14” 29.5” 49.5” 12” 14” 6” 6” 4” 22” 19” SIDE FRONT 10” Ser vice Clearance Service Drain Options 99-186 Weatherhoods, T wo - 6" c/w 1/4" mesh screen 99-130W Remote W all Mount Dehumidistat Control 24 V AC only 99-RSK6 6” back draft damper Specifications Model 60DHW ...
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Lifebreath 40DHW(T) - page 18
18 Options 99-186 Weatherhoods, T wo - 6" c/w 1/4" mesh screen 99-130W Remote W all Mount Dehumidistat Control 24 V AC only 99-RSK6 6” back draft damper To p Front 29.5" 29.5" 19" 47.5" 6" 6" ® CLEAN AIR FURNACE 14" 12" 4" 19" 22.25" Duct (coil) Opening 17.25" V entilati ...
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Lifebreath 40DHW(T) - page 19
19 Options 99-186 Weatherhoods, T wo - 6" c/w 1/4" mesh screen 99-130W Remote W all Mount Dehumidistat Control 24 V AC only 99-RSK6 6” back draft damper To p Side Front 29.5" 29.5" 19" 47.5" 6" 6" ® CLEAN AIR FURNACE 14" 12" 4" 19" 16" Duct (coil) Opening 17.25" V entila ...
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Lifebreath 40DHW(T) - page 20
Options 99-186 Weatherhoods, T wo - 6" c/w 1/4" mesh screen 99-130W Remote W all Mount Dehumidistat Control 24 V AC only 99-RSK6 6” back draft damper To p Side Front 29.5" 29.5" 19" 47.5" 6" 6" ® CLEAN AIR FURNACE 14" 12" 4" 19" 22.25" Duct (coil) Opening 17.25" V entila ...
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Lifebreath 40DHW(T) - page 21
To p Side Front 29.5" 29.5" 19" 47.5" 6" 6" ® CLEAN AIR FURNACE 14" 12" 4" 19" 22.25" Duct (coil) Opening 17.25" V entilation Supply Air Inlet V entilation Exhaust Air Outlet 22" Return Plenum Latches Blower Section (SERVICE CLEARANCE 1') (SERVICE CLEA ...
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Lifebreath 40DHW(T) - page 22
The purpose of this manual is to give the contractor guidelines for installing the LIFEBREA TH Clean Air Furnace. All national and local codes relating to this type of equipment must be followed. Locating The Unit The Clean Air Furnace is designed to be installed vertically , (unless it is designated as a Horizontal unit ”H”), in a conditioned ...
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Lifebreath 40DHW(T) - page 23
Penetrations from sheet metal screws used to fasten the ductwork to the cabinet of the unit should only be placed into the duct flange provided. This is to avoid contact and damage of the heating/air conditioning coils and internal wiring. Ducting The duct sizing for the furnace section can be determined using HRAI Residential Air System Design Man ...
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Lifebreath 40DHW(T) - page 24
Locating Intake W eatherhood The intake weatherhood should be located as follows: • 4 - 6' from ventilation exhaust hood, and upstream of prevailing winds, if possible. • At least 6' from a dryer vent, oil fill pipes, combustion outlets, gas meters, garbage containers or anything else, which may contaminate the air . • Do not locate ...
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Lifebreath 40DHW(T) - page 25
Pitot Tube Air F low Balancing It is necessary to have balanced air flows in an HRV . The volume of air brought in from the outside must equal the volume of air exhausted by the unit. If the air flows are not properly balanced then: • The HRV may not operate at its maximum efficiency • A negative or positive air pressure may occur in the house ...
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Lifebreath 40DHW(T) - page 26
This is an example for determining the airflow in a 6" duct. The Pitot tube reading was 0.025 inches of water . From the chart, this is 640 feet per minute. The 6" duct has a cross sectional area of: = [ 3.14 x (6"÷ 12) 2 ] ÷4 = 0.2 square feet The airflow is then: 640 ft./min. x 0.2 square feet = 128 cfm For your convenience, the ...
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Lifebreath 40DHW(T) - page 27
27 Dr ain Line The ventilation portion of the Clean Air Furnace has two drain pans for removing condensation, which may occur on the heat recovery core during cold weather . Piping The hot water piping between the hot water tank and the Clean Air Furnace should be new copper type, and should not be treated with chemicals, sealant or anything else, ...
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Lifebreath 40DHW(T) - page 28
28 Water Heater Check Valve To House CAF or AH Min. 12" above top of CAF / AH 12" Water Heater CAF or AH Check Valve Min. 12" above top of CAF / AH To House 12" Figure 2 Figure 1 * I t should be noted that problems have been observed when using the side tappings on certain water heaters; therefor e, it is strongly r ecommend ...
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Lifebreath 40DHW(T) - page 29
29 JUMPER OPTIONAL PUMP TIMER 1 LOAD 2 LINE 3 NEUT. 4 5 RW C YG 24VAC THERMOSTAT CONNECTIONS GND TRANSFORMER 24V NC NO NO C C NC 120V LINE NEUTRAL NO NC com HIGH Speed Select red white blue or brown black yellow Door Interlock Switch 3 0 2 0 FAN MOTOR FAN CAPACITOR PUMP black yellow blue MED-HIGH MED CAF-01 0101 2 1 Continuous/Automatic Ventilation ...
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Lifebreath 40DHW(T) - page 30
When using a Dehumidistat or Interface Relay to initiate high speed blower operation on a furnace, certain thermostats will initiate the outdoor cooling condenser when R and G are closed. Use this wiring configuration to stop the Dehumidistat from initializing the condenser unit. This problem can occur at the thermostat because the Y terminal is co ...
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Lifebreath 40DHW(T) - page 31
31 Start -Up Procedure In order for any appliance to work properly it must be set up and tested by a knowledgeable technician. The following conditions must be met prior to start-up 1. Ensure that connecting water lines are purged and free of debris. Caution: solder or other debris may cause the furnace pump or check valve to malfunction. 2. Blower ...
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Lifebreath 40DHW(T) - page 32
32 Oper ation Heating/Cooling When the room thermostat calls for heat, it activates a circulation pump located inside the Clean Air Furnace. This pump delivers hot water from the water heater , through the furnace coil and back to the water tank. Simultaneously , the furnace blower switches on to high speed and will start circulating air across the ...
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Lifebreath 40DHW(T) - page 33
33 Troubleshooting Lack of heat 1. Check that the room thermostat is set to the desired temperature. 2. Confirm the units have power and the shut-off valves are open. 3. Ensure there is power to the unit and that the pump is working. If the pump is not working properly it may be stuck. Disconnect power and remove screw in center face of the pump. U ...
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Lifebreath 40DHW(T) - page 34
During cooling cycle, hot w ater circulates through the coil If the check valve inside the cabinet is stuck in the open position, hot water may infiltrate the heating coil. This occurs when the hot pipes are not capped-of f during installation or service and foreign debris enters the piping. This debris can settle under the check valve seat and per ...
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Lifebreath 40DHW(T) - page 35
W ater Pump Perf ormance Specifications 16 14 12 10 8 6 4 2 0 Capacity on U.S. gpm Model 40 1 2 4 6 8 10 12 T otal Head in Feet Model 60 1 2 4 6 8 10 12 14 16 18 20 16 14 12 10 8 6 4 2 0 Capacity on U.S. gpm T otal Head in Feet 35 This section of the manual is designed to be used with the “Commis ...
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Lifebreath 40DHW(T) - page 36
36 ¤ WORKSHEET FOR INTEGRA TED COMBO SYSTEM DESIGN Submitted F or: (Owner) Name _______________________________________ Address _____________________________________ City ______________________ Prov . _____________ Postal Code ________________ Phone ( ) ____________ Fax ( ) ___________ By: (Contractor) Name _______________________________________ ...
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Lifebreath 40DHW(T) - page 37
37 Part A - DESIGN LO AD SPECIFICA TIONS A.1 T otal Heat Loss _______________Btu/h A.2 T otal Heat Gain _______________Btu/h Part B - EQ UIPMENT SELECTION (Air Handler and Cooling) AIR HANDLER: Make: LIFEBREA TH Model: ____________ B.1 Heating Output ________________________ Btu/h (110% - 140% of A.1) B.2 Equipment Extern ...
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Lifebreath 40DHW(T) - page 38
38 METHOD A - (domestic hot water usage f or C.1) T ABLE A 1 (NA TURAL GAS AND PR OP ANE)* No. of Bathrooms 1 to 1.5 2 to 2.5 3 to 3.5 No. of Bedrooms 1** 2 3 2 3 4 5 3 4 5 6 Nominal T ank Size (USG) 30 40 50 50 50 50 60 50 60 60 75 T ABLE A 2 ( ...
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Lifebreath 40DHW(T) - page 39
39 P AR T D - PR O VING REQUIRED W A TER FLO W PUMP: D.2 W ater Flow Rate ________ US GPM D.3 Max. Head Press. at W ater Flow ________ ft of head (fr om specs) D.4 Pressure Drop of W ater Coil ________ ft of head D.5 A vailable Head Press. ________ ft of head (D.3 - D.4) D.6 T otal Effect ...
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Lifebreath 40DHW(T) - page 40
¤ COMMISSIONING OF INTEGRA TED COMBO SYSTEM Submitted F or: (Owner) Name _______________________________________ Address _____________________________________ City ______________________ Prov . _____________ Postal Code ________________ Phone ( ) ____________ Fax ( ) ___________ By: (Contractor) Name _______________________________________ Address ...
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Lifebreath 40DHW(T) - page 41
41 Part E - SYSTEM ST AR T UP E.1 Fill W ater Heater with water ❑ E.2 Set W ater Heater at designed temperature ❑ E.3 Fill Heating Loop with water ❑ E.4 Purge Circulation Pump ❑ E.5 Start Air Handler ❑ E.6 Check Circulation Pump Operation ❑ ...
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Lifebreath 40DHW(T) - page 42
511 McCormick Blvd. London, Ontario N5W 4C8 Ph: (519) 457-1904 Fx: (519) 457-1676 Email: nutech@lifebreath.com Website: www.lifebreath.com ...
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