Honeywell H1008 - Manuals - manualsarea.com

Page 2 - Automatic Humidity Control; The Honeywell H1008 Automatic Humidity Control with HumidiCalc+; Back to Basics - Expressing Humidity; as the temperature varies between 60; Constant Moisture Level

Rev 2.0 63-7048 1998 Honeywell Inc. Page 2 of 22 Automatic Humidity Control The Honeywell H1008 Automatic Humidity Control with HumidiCalc+ Software is the world’s most advanced stand-alone humidity control. Simple to install, easy totroubleshoot, it is designed to save the installing contractor tim...

Page 3 - Defining a Comfortable Humidity Level; Figure 2 shows a summary of the ASHRAE conclusions.; Figure 2 – ASHRAE Winter Comfort Zone; F, for dry bulb temperatures ranging from about 69; Comfort Zone

Rev 2.0 63-7048 1998 Honeywell Inc. Page 3 of 22 Defining a Comfortable Humidity Level Much research has been conducted on what combination of temperature and humiditycreates the most comfortable indoor environment. The 1997 ASHRAE FundamentalsHandbook 1 defines how comfort is perceived as a functio...

Page 4 - The Quest for Dry Windows – All Winter Long; As we said above, “If the dewpoint could always be maintained at 50

Rev 2.0 63-7048 1998 Honeywell Inc. Page 4 of 22 The message to take away from all this is: If you are in the business of trying to provide a comfortable indoorenvironment, controlling a humidifier by sensing relative humidity maynot result in optimum control. Especially poor performance may result ...

Page 5 - Figure 3 – Temperature Profile of Double Pane Window

Rev 2.0 63-7048 1998 Honeywell Inc. Page 5 of 22 Figure 3 illustrates why condensation occurs: Figure 3 – Temperature Profile of Double Pane Window Figure 3 shows the temperature profile through a typical double pane window. If it is 70 F inside and 0 F outside, depending on the insulating value of ...

Page 7 - H1008 Automatic Humidity Control with HumidiCalc+

Rev 2.0 63-7048 1998 Honeywell Inc. Page 7 of 22 The AutoTrac control does not have the ability to provide true dewpoint control. This may result in overhumidification at times when the temperature is greater than normalconditions and underhumidification if the temperature is less than normal condit...

Page 8 - 00% Furnace Oversize

Rev 2.0 63-7048 1998 Honeywell Inc. Page 8 of 22 H1008 Automatic Humidity Control with HumidiCalc+ - The Technical Approach We found that there is more than a casual relationship between furnace run time andoutdoor temperature. In fact, in a single stage heating system, in steady state, thepercentag...

Page 9 - Figure 6 – Typical Window Surface Temperatures (with T; Outdoor T emperature - deg F; Single Glaze

Rev 2.0 63-7048 1998 Honeywell Inc. Page 9 of 22 oversize). In this case the furnace will only be running 50% of the time at the ASHRAEdesign temperature of –16 F. Next, we looked at the insulation values of windows, and found that naturally, there is arelationship between the temperature of the ins...

Page 10 - Voila; Control with HumidiCalc+; The H1008 Automatic Humidity Control with HumidiCalc+; How Does it Work Under Real World Conditions? Very Well, Thank You.

Rev 2.0 63-7048 1998 Honeywell Inc. Page 10 of 22 adjusting a single input value, we can achieve a control point that satisfied every one ofthe thousands of combinations of the variables. Voila . By adjusting a single knob setting we can provide a solution for the entire range of five input variable...

Page 11 - Performance Curves

Rev 2.0 63-7048 1998 Honeywell Inc. Page 11 of 22 Nobody has more knowledge about heating loads than Honeywell, the world leader intemperature control. More furnaces are controlled by Honeywell thermostats than anyother, so nobody understands the science of temperature control better than we do. In ...

Page 14 - Figure 10 – Field Testing of H1008 Automatic Humidity Control

Rev 2.0 63-7048 1998 Honeywell Inc. Page 14 of 22 -20 -10 0 10 20 30 40 50 60 70 80 00 :0 0: 00 01 :0 0: 00 02 :0 0: 00 03 :0 0: 00 04 :0 0: 00 05 :0 0: 00 06 :0 0: 00 0 7 :00 :0 0. 0 08 :0 0: 00 09 :0 0: 00 10 :0 0: 00 11 :0 0: 00 12 :0 0: 00 13 :0 0: 00 1 4 :00 :0 0. 0 15 :0 0: 00 16 :0 0: 00 1 7 ...

Page 15 - Making the Best of a Duct Mounted Humidity Control; Ambient Temperature of the Equipment Room

Rev 2.0 63-7048 1998 Honeywell Inc. Page 15 of 22 Making the Best of a Duct Mounted Humidity Control One of the things we learned early on in this development was that a return air duct is notthe best place to mount a humidistat that controls only by relative humidity. There aretwo major factors tha...

Page 16 - Figure 11 – Variation in Duct Temperature and Relative Humidity

Rev 2.0 63-7048 1998 Honeywell Inc. Page 16 of 22 -20 -10 0 10 20 30 40 50 60 70 80 90 100 08 :0 0 :00 08 :3 0 :00 .0 09 :0 0 :00 09 :3 0 :00 10 :0 0 :00 10 :3 0 :00 11 :0 0 :00 11 :3 0 :00 12 :0 0 :00 12 :3 0 :00 .0 13 :0 0 :00 13 :3 0 :00 14 :0 0 :00 .0 0 5 10 15 20 25 30 35 40 Dewpoint Furnace Cy...

Page 17 - Figure 12 – Variation in Duct Temperature and Relative Humidity

Rev 2.0 63-7048 1998 Honeywell Inc. Page 17 of 22 2. Humidity Control Located Too Close to Bypass DuctA second problem that can occur in many installations is a result of the humiditycontrol being located too close to the bypass duct. We always recommendmounting the humidity control as far upstream ...

Page 18 - Figure 13 – Variation in Duct Temperature and Relative Humidity

Rev 2.0 63-7048 1998 Honeywell Inc. Page 18 of 22 dewpoint increases slightly in response to the humidifier cycles. During thisperiod the relative humidity sensed in the duct is as low as 13 %. Because theH1008 controls based on dewpoint, it is able to cycle intermittently during thetemperature reco...

Page 19 - control. The only way around it is to; Installing the Honeywell H1008 Automatic Humidity Control; much of an advantage? These are the facts:

Rev 2.0 63-7048 1998 Honeywell Inc. Page 19 of 22 While the humidifier was on during the entire recovery period starting at 4:15a.m., the sensed RH ranged from 20 to 30 %. The continuous operation of thehumidifier caused the dewpoint in the house to exceed the window temperaturefor over two hours. C...

Page 21 - , the H1008 does not require a jumper selection if the control; Figure 16 – Device Status Light; Software, the world’s most advanced stand-alone

Rev 2.0 63-7048 1998 Honeywell Inc. Page 21 of 22 Logic to determine if the fan is running is determined from the equipment inputsso a current sensing relay is never required, providing additional savings to thecontractor on jobs that would normally require one. 4. Automatic Configuration and Diagno...

Page 22 - Software vs. AutoTrac

Rev 2.0 63-7048 1998 Honeywell Inc. Page 22 of 22 Direct Comparison Chart – Honeywell H1008 Automatic Humidity Control with HumidiCalc+ Software vs. AutoTrac Honeywell H1008 AutoTrac Installation Outdoor Sensor Not required for single stage furnaces. Recommended forheat pumps and multi-stage furnace...

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