RH | OD | % |
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| T | RH |
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Figure 14. | O | M |
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Installation instructions for the 072000 model Humidistat are packaged with the 072000.
Your humidifier may include Model 062000 Humidistat. Installation instructions for the 062000 model are packaged with the 062000.
There are many ways to wire and control a humidifier. Refer to the wiring diagrams on pages 4 and 7.
10. SETTING THE HUMIDISTAT
It is recommended that humidistat settings of
The maximum recommended relative humidity for your home depends upon many factors such as outdoor air temperature, type and placement of insulation, vapor barriers, effectiveness of weather stripping, type of windows and doors (including frames and jambs) and whether or not storm windows and doors are used. With all these variables it is nearly impossible to recommend a proper humidity setting. The best humidistat setting is one that you are most comfortable with. Also, as the outdoor temperature fluctuates, it may be necessary to adjust the humidity level of your system a few times during the heating season.
Refer to the "Relative Humidity Chart" as a starting point for your proper humidistat setting. Generally, in a tighter and better insulated house, the humidistat may be set higher than in a drafty,
IMPORTANT: If the humidifier is installed in the return air plenum the humidistat must be located at least five (5) feet upstream from the humidifier. Fan should be operated in continuos mode when the humidistat is mounted in the return air plenum. Mounting the humidistat on an interior wall is always preferable to mounting on the return duct. But mounting the humidistat on an interior wall takes more time, material and labor than a return duct location. Sometimes it may be impossible to mount a humidistat on an interior wall and the return duct location is the only solution.
RELATIVE HUMIDITY CHART
Variable Speed WIRING DIAGRAM
FIG. 15 |
| Variable Speed Heat & Cool System and |
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| SteamHumidifier with 072000Humidistat |
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| Humidifier with 072000 Humidistat |
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| SteamVariable Sp ed Heat & Cool System and |
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Typical Thermostat | S2000 & S2020 Humidifier |
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Low Voltage Terminal Block | A | |||||||
R W G Y C | G1 R G2 H |
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| REMOVE |
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| FACTORY | |
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| JUMPER |
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R W G Y C |
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| Model APD or | |||
Variable Speed Furnace | OD OD C | R | H | H | ||||
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| Equivalent | |||||
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| Outdoor |
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R | Y | C | 072000 Humidistat |
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Temperature |
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Sensor |
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Condensing |
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| Unit |
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Outside | Recommended Indoor |
Dry Bulb | Relative Humidity |
Temperature | Setting |
0 Deg. F | 15% |
10 Deg. F | 20% |
20 Deg. F | 25% |
30 Deg. F | 35% |
35 Deg. F | |
and up |
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The diagram above should be followed if it is required to operate the fan system at high speed during the humidify operation. Such a requirement may be necessary if condensation occurs inside the
when only the fan is running. The “Y” circuit must be wired exactly as shown to achieve the correct operation. This wiring configuration may result in the loss of the “enhanced” latent effect operations of your variable speed HVAC system. If you do not want this to happen, you should consider installing a different type of whole house humidifier that does not require dominance over the HVAC fan and full CFM capacities while operating. Variations onthisthisdiagramdiagramareareavailableavailable. .ContactContactEWCFieldControlsControlsTechnicalTechnicalSupportSupportHotlineHotline. .
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