Lifebreath AH40DHW, AH60DHW, AH40BHW, AH80BHW, AH60BHW Optional Dehumidistat, Outside

Page 20

Optional Dehumidistat

Dehumidistat to

Setting

Relative

 

 

Conditions

Outside

 

 

 

 

 

 

 

 

 

 

 

TER:

 

 

t

 

 

WIN

 

 

 

 

 

Set deh

umidista

 

.

 

 

to

40%

 

een

30%

 

betw

 

 

too dry,

 

If

home is

 

 

setting.

adjust to higher

 

 

id,

If home

is too hum

 

lower sett

ing.

adjust to

 

 

 

 

 

 

 

 

 

 

 

SUMMER

:

tat

 

 

 

 

 

 

umidis

 

 

 

Set deh

 

 

.

 

 

 

 

 

to OFF

 

 

 

 

 

An optional dehumidistat can be connected to the furnace to help eliminate excessive moisture during the heating season. When the dehumidistat senses moisture in excess of the control setpoint, the blower will be overridden into high speed. This will increase the ventilation airflow and create a dehumidification affect. Typical settings are between 30-40 during the winter and OFF for all other seasons.

The dehumidistat will connect to R&G terminals on the furnace.

Part # 99-130W

Note: Do not use dehumidistat for hot southern climates.

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 connected to the G terminal internal to the stat. When R and G are closed at the furnace (by dehumidistat or relay) 24 Volts is sent to G at thermostat. 24 Volts is then sent through Y which will initiate outdoor condenser. The relay will isolate this problem.

NOTE: This problem does not occur with all thermostats, therefore it is important to fully commission the installation to determine if this relay configuration is required.

Interface Relay or Dehumidistat

24 Volt

Relay

R G W Y C

NO

COM

NC

R G W Y

T-stat

Furnace

TB-102

 

1099

20

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Contents OPERATION, Sizing and Installation Manual Table of Contents Introduction Description and Purpose Important NoteCombo System Basic Principles Closed/Open Combo SystemCall for Space Heating Only Operation Call for Domestic Hot Water and Space Heating OperationAir System Water PipingManual Valves Shut Off Valves Drain ValveThrottling Valve Check ValvesExpansion Tanks ColdWater Anti-Scald ValveAir Handler Return Air Temperature Air Handler Temperature RiseWater Heater Thermostat Room ThermostatDesign vs. Field Conditions Water System PressuresHead Pressure Flow RateSpecifications Dimensions & ClearancesWarranty Model AH40DHWModel AH60DHW AH60DHWModel AH40BHW AH40BHWModel AH60BHW AH60BHWModel AH80BHW AH80BHWInstallation Locating The UnitDuct Connections DuctingPlumbing Water HeaterAir Handler Wiring Diagram ElectricalOptional Dehumidistat OutsideStart-Up Procedure Following conditions must be met prior to start-upOptional Circulation Timer Models OperationHeating/Cooling Continuous Low Speed Hook UpPump is noisy TroubleshootingLack of heat Water Pump Performance Specifications System CommissioningPage Page Page Page Page Page

AH60BHW, AH80BHW, AH40BHW, AH40DHW, AH60DHW specifications

Lifebreath is a recognized leader in energy recovery ventilation systems, and its line of products, including the AH60BHW, AH40BHW, AH40DHW, and AH80BHW models, reflects the company's commitment to delivering high-quality indoor air solutions. These models provide an innovative approach to enhancing indoor air quality while ensuring energy efficiency.

The Lifebreath AH60BHW model is designed to meet the demands of larger spaces, offering a remarkable airflow capacity. This system incorporates advanced energy recovery technology, enabling it to efficiently transfer heat and moisture between incoming and outgoing air streams. As a result, it maintains comfortable indoor conditions regardless of the external climate, ensuring optimal performance year-round.

For medium-sized areas, the AH40BHW and AH40DHW models are excellent choices. Both systems feature similar designs with slight variations in their configurations. The AH40BHW operates using hot water, making it particularly effective in radiant heating applications. In contrast, the AH40DHW relies on direct water heating, providing reliable and consistent heat distribution. These models also boast high-efficiency filtration systems that capture airborne pollutants, contributing to healthier indoor environments.

The Lifebreath AH80BHW is tailored for extensive applications, delivering superior ventilation and energy management. It utilizes a robust heat recovery core that maximizes energy savings and ensures minimal heat loss during the exchange process. Additionally, the AH80BHW's compact design makes it versatile for various installation scenarios, whether in residential settings or commercial spaces.

All models are equipped with user-friendly controls that allow easy adjustments of airflow settings to suit specific requirements. Furthermore, the addition of advanced monitoring technology ensures that users can track system performance and energy usage, optimizing efficiency. With quiet operation characteristics, these systems enhance comfort without disruptive noise.

Overall, Lifebreath's AH series ventilation systems represent a combination of cutting-edge technology and practical design. Their focus on energy recovery, high filtration efficiency, and user-friendly operation makes them an ideal choice for anyone seeking better air quality and comfort in their indoor spaces. Whether for residential or commercial needs, Lifebreath provides reliable solutions that prioritize both health and efficiency.
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