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THIS MANUAL MUST BE LEFT WITH THE
HOMEOWNER FOR FUTURE REFERENCE
NOTICE
The humidistat must be installed in accordance with
all local and national standards.
Installation, adjustments, alterations, service and
maintenance must be performed by a qualified ser
vice technician.
Product Description
The HC Digital Automatic Humidistat is a programmable
control for HCSteam residential humidifiers. While the HC
Digital Automatic Humidistat may be used for control of
other humidification or dehumidification appliances, its op
erating modes are designed for modulating control of the
HCSteam electrode steam humidifiers.
When properly installed and configured, the HC Digital Au
tomatic Humidistat will use information from the environ
ment including Relative Humidity, Outdoor Temperature
and Home Construction to determine the Ideal Humidity
and the Optimum Humidifier Output.
INSTALLATION &
USER MANUAL
HC Digital Automatic
Humidistat (Y3760)
CONTROLS
506808-01
3/2016
Supersedes 6/2011
Table of Contents
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The HC Digital Automatic Humidistat includes an Indoor
Temperature Sensor, Indoor Humidity Sensor and Control
Unit. A separate Outdoor Sensor is supplied.
Humidistat Dimensions
°C/°F
°C/°F
Set
Set
Prg
Prg
5 1/4" (135 mm)
Disposal
The product is made from metal and plastic
parts. All parts must be disposed of accord
ing to the local standards on waste disposal.
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Table of Contents
Summary of Contents for Lennox Y3760
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Page 1: Table Of Contents
INSTALLATION & USER MANUAL HC Digital Automatic Humidistat (Y3760) CONTROLS 506808-01 3/2016 Supersedes 6/2011 picture goes here Table of Contents Product Description ...... -
Page 2: Installation
Installation 1. Open the product by detaching the front from the the connection and control cables from the relay mounting base, as shown in figure 1: cables. The diagrams are shown under Electrical Con nections (Page 3). Remove the screw holding the locking tab in place (detail A). -
Page 3: Electrical Connections
(see figure 3). HCSteam NOTES - HCSteam humidifiers are configured for On-OFF op eration from the factory. See HCSteam Humidifier Installation Instruction Manual 506746-01. Y3760 Verify Dip Switch Settings per figure 3. DIP Switch settings HCSteam Y3760 Outdoor Temp. - Page 4 Placement of Remote Outdoor Temperature Make sure wiring for outdoor temperature sensor is Sensor not close to other wires particularly high voltage. Outdoor temperature sensor should not be mounted Outdoor temperature sensor must be at least 6” above on the south side of the house or in direct sunlight. expected snow line.
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Page 5: User Interface And Modes
User Interface and Modes Display and buttons Table 3. Humidistat buttons description Figure 4 below shows the humidistat with its control but On/Off . tons and its display, along with a key of what each of the symbols represent. Table 3 describes how the buttons op Selects the temperature display mode, degrees Celsius or Fahr... -
Page 6: Configuration (Setting Dip Switches, Parameters, Auto Humidity Control, Sensor Calibration)
Configuration Table 6. Operating mode defaults NOTICE clock hh:mm Before closing the cover, the mode must be selected manual changeover duration def. 8 hours using the dip switches. start day band def. 08:00 Important: Setting the dip switches incorrectly will cause the humidistat to malfunction. -
Page 7: Functions
Table 8. Humidity set point according to the setting of AUt (outside temperature in degrees) Below Above -9.4 to 1.4°F 1.4 to 10.4 °F 10.4 to 21.2°F 21.2 to 30.2°F 30.2 to 39.2°F 39.2 to 50°F -9.4°F 50°F Level (-23 to -17°C) (-17 to -12°C) (-12 to -6°C) (-6 to -1°C) -
Page 8: Parameters
Parameters unit of measure code parameter range default note Humidification set point. 10 to 70 50.0 % rH Dehumidification set point. 10 to 70 70.0 % rH Humidity differential for activating analog output and relay. 1 to 20 % rH Dehumidification differential activating relay. -
Page 9: Technical Specifications And Wiring
Warning: All the connections, except for the relays, must be connected to very low voltage circuits with reinforced insulation. Replacement Parts Outdoor Temperature Sensor Cat. No. Y4103 Contact your local Lennox dealer to order replacement parts. For the Lennox dealer nearest you, dial 1-800-9-Lennox. Visit us at http://www.Lennox.com Page 9... - Page 10 +070220641 Rel. 1.0 - June 2011 Page 10 506808-01 06/11...