Daikin PreciseLine Series Installation And Maintenance Manual page 43

Figure 67: Thermostat Installation
Economizer Space Humidity Sensor
NOTICE
Do not use sensors in areas with possible acid fumes or
chemical vapors that can corrode sensor metal parts or with
volatatile or explosive gases.
The sensor(s) can be mounted to the inner wall of the duct or
space as illustrated in Figure
Figure 68: Economizer Space Humidity Sensor Installation
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68.
Figure 69: Economizer Space Humidity Sensor Terminal
Layout
Connect the wires to the sensor as follows.
► H23V - 24VDC Supply
► HCOM - Sensor Common / Ground
► HSIG - Space Humidty Sensor
Duct Static Pressure Sensor
Additional Required Parts:
• (4) #10 x ¾" self-tapping sheet metal screws
• ¼" tubing (1/8" to 3/16" I.D.)
• Duct pressure tap
• Minimum 3-conductor shielded 22AWG wire
Installation
• All wiring must comply with the National Electric Code
(NEC) and local codes. Do NOT run any of this device's
wiring in the same conduit as other AC power wiring.
Tests show that fluctuating and inaccurate signal levels
are possible when AC power wiring is present in the same
conduit as the signal lines. If you are experiencing any
of these difficulties, please contact your Daikin Applied
representative.
43 IM 1267-7 • PRECISELINE AIR HANDLER
Installation