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Honeywell TrueSTEAM Series Reference Manual
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Honeywell TrueSTEAM Series Reference Manual

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TrueSTEAM
Humidification
™
Reference Guide

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Summary of Contents for Honeywell TrueSTEAM Series

  • Page 1 TrueSTEAM Humidification ™ Reference Guide...

  • Page 3: What's Inside

    What's InsIde SECTION PAGE sizing ...............4 Operating Costs ..........8 selection ............13 Wiring ..............16...
  • Page 4 Capacity is determined by the output of the device as if it operated 24 hours per day. honeywell truesteaM capacity ratings are determined by testing in accordance with the ahRI guidelines.
  • Page 5 What is meant by a humidity load requirement? the humidity load requirement is the daily amount of vapor needed to maintain 35% Rh in specific home sizes and is often listed in minimum gallons per day (GPd) needed. Chart 2: Humidity requirements in GPD based on home size and construction type (from AHRI Guideline F). Loads assume people living within home.

  • Page 6: Additional Considerations

    Chart 4: National average daily operating costs to achieve 35% RH in a tight-fit home with 8-foot ceilings and people living in it. Home size Humidity TrueSTEAM (sq. ft.) needed HM506 HM509 HM512 (GPD per AHRI) $0.76 $0.99 $1.15 1000 $1.04 $1.00 $1.16...
  • Page 7 Additional information can be found online at www.forwardthinking.honeywell.com/truesteam...
  • Page 8 4. Cost to heat water when connected to water heater as supply Let's look at an example and contrast the operating cost of an evaporative bypass humidifier with the honeywell truesteaM. We will use national average costs as listed by the U.s. department of energy (dOe) and Consumer energy websites, november 2008.
  • Page 9 according to ahRI guidelines (appendix a), a 2000 ft , two-person home with tight insulation requires 6.5 gallons of humidity per day to satisfy home comfort. Both a large bypass humidifier and a truesteaM hM509 can achieve this requirement, but they do so in different ways, and with different associated costs.
  • Page 10 When running a large bypass evaporative humidifier without the furnace (100% fan-only), more time is required (18.4 hours) to deliver the 6.5 gallons of humidity. during that time, 64.2 gallons of water are consumed of which only 6.5 gallons per day go into the air as humidity. that equals 1926 gallons per month of heated water that the homeowner is paying for, with only 195 gallons going into the air as humidity.
  • Page 11 compare.
  • Page 12 (43.2 GPd)(.003 + .003) = $.026 per day Cost to heat water with natural gas (heating 60°F to 120°F) = (43.2 GPd)(8.3 lbs/gallon)(1 BtU/lb-F)(120-60°F)($20.19/1000 ft (1031 BtU/ft ) = $0.42 per day Additional information can be found online at www.forwardthinking.honeywell.com/truesteam...
  • Page 13 Humidifier Selection TrueSTEAM Humidification System With the multiple humidifier styles and sizes available to distributors and contractors, it can be difficult to discern which model provides the best solution for the homeowner. a common method of rating the humidification capacity is to state the output in terms of gallons per day (GPd).
  • Page 14 The following table provides reference based on furnace temperature, runtime, as well as whether the system fan is running intermittently or continuous. These factors play a critical role in the GPD output of each humidifier style and model. Furnace Run Furnace Additional Fan HE225...

  • Page 15: Works Cited

    Works Cited 1. 2007 Guideline for selection, Installation, and servicing of Residential humidifiers. aRI Guideline-F, 2007. Additional information can be found online at www.forwardthinking.honeywell.com/truesteam...

  • Page 16: Power Monitoring

    Commonly asked Wiring Questions TrueSTEAM Humidification System I. Power Monitoring II. Air Proving-system Fan Activation III. Optional Add-on Air Proving I. Power Monitoring What is it? Contractors must configure truesteaM to run only when the hVaC system has power present. By monitoring power, at R and C truesteaM will not produce humidity without air moving in the duct.

  • Page 17: How Does It Work

    What happens if done wrong? • The most common mistake in Power Monitoring is incorrect positioning of the DIP-4 switch. If you leave DIP-4 in its default position (down), truesteaM will look for power at its R and C terminals. If this R/C wire connection is not present, and dIP-4 is down, then truesteaM’s fault notification ‘Call service’...
  • Page 18 Thermostat fan signals: From the If the thermostat G signal is not present: thermostat will travel through Gt to Gf to the the truesteaM will send power through Gf to hVaC system G. humidity is allowed if that hVaC system G to ensure there is airflow for signal is present from the thermostat.
  • Page 19 — In VisionPRO IAQ, this is setup function 0374 • Option 1 forces the fan on. This energizes system G when the HUM terminals energize from a humidity demand • Option 0 or 2 waits for the system to energize G before allowing HUM terminals to energize •...
  • Page 20 — In TrueIAQ, this is setup function 25 • Because the humidifier control is separate from the HVAC system control (thermostat) in this situation, it is necessary to power monitor and enforce the system fan from TrueSTEAM. • On TrueSTEAM, set DIP-4 down. •...
  • Page 21 — In a manual humidistat, such as H8908 • Because the humidifier control is separate from the HVAC system control (thermostat) in this situation, it is necessary to power monitor and ensure system fan operation from TrueSTEAM. • On TrueSTEAM, set DIP-4 down. •...
  • Page 22 — In a Prestige HD wireless, this is setup function .374 • Select option 'Humidifier forces fan on' • Wire Prestige HD R, C, Y, W, G to system R, C, Y, W, G • Wire TrueSTEAM A-B-C-D to wireless adaptor A-B-C-D •...
  • Page 23 What are my options and when would I use one over the other? two levels of safeguarding are provided when truesteaM is configured to monitor airflow since mechanical air movement is required to change the system's switch state and hVaC power is transferred to truesteaM to indicate this state or transition to truesteaM. If the thermostat is powered from the hVaC system and power is interrupted, then the thermostat can't turn on truesteaM or the system fan.

  • Page 24: How It Works

    III. Optional Add-On Air Proving What is it? air proving can be defined two ways – proving the fan has power to move air, or proving physical air movement in the duct. Proving the fan has power has been integrated into truesteaM’s Fan enforcement feature. this integrated air proving through fan G-terminal enforcement makes wiring easy, while safeguarding the home by positively confirming the fan has power to move air before allowing truesteaM to humidify.
  • Page 25 What happens if done wrong? aside from wiring, the most common error would be misconfiguration of the dIP switches to enable truesteaM to check physical air movement. — If dIP 4 is up, it does not matter what position dIP 5 is in - truesteaM will not check its R and C terminals for power. and because the air proving device is wired into the C terminal of truesteaM and the hVaC system, it will not be checking it for air proving verification.
  • Page 26 NOTES...
  • Page 28 Automation and Control Solutions In the US: honeywell 1985 douglas drive north Golden Valley, Mn 55422-3992 In Canada: honeywell Limited 35 dynamic drive toronto, Ontario M1V 4Z9 50-1276BW PR april 2009 customer.honeywell.com © 2009 honeywell International Inc.

This manual is also suitable for:

Truesteam hm506Truesteam hm512Truesteam hm509

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