Daikin PreciseLine Series Installation And Maintenance Manual page 48

Discharge Air Temperature Sensor
The discharge air temperature sensor should be installed
in the supply air duct, downstream of the PreciseLine unit.
Locate the sensor at a location that approximates the average
duct temperature. To avoid the affects of radiation, the sensor
should not be in direct line of sight with the electric heat
elements. Generally, locate the sensor 5-10' from the unit
discharge and after one duct turn to allow for air mixing. Do not
install downstream of VAV boxes or other dampers.
1. Drill a 3/8" diameter hole in the duct, insert the
temperature probe and secure plate to duct using 2-#8
screws.
2. Be sure to apply gasket or sealant to back of mounting
plate prior to screwing the plate to the duct to create an
air tight seal.
Figure 81: Temperature Sensor Installation
Figure 82: Temperature Sensor Mounting Measurements
IM 1267-7 • PRECISELINE AIR HANDLER
MicroTech® 4 Lite Portable Interface
Electric shock hazard. Can cause death, personal injury,
or equipment damage.
This equipment must be properly grounded. Connections and service to
the MicroTech 4 Lite unit controller must be performed only by personnel
knowledgeable in the operation of the equipment being controlled.
1. Remove plastic cover
2. Mount the portable interface. The portable interface can
be either panel mounted or wall mounted.
Figure 83: Removing the Cover
Direct Connection
The portable interface can be wired directly to a single
MicroTech 4 Lite unit controller over a standard RJ45
(Ethernet) connection.
1. Locate the external RJ45 plug shown in
2. Follow Figure 84 for connection details. Note the
distance limitations provided.
3. Cycle power to the unit(s) once the wiring of the portable
interface is complete.
Interface Details for RJ45 Connector:
• Bus connection - RJ45 Interface
• Max length of shielded cable: 164 ft (50 m)
• Max length of unshielded cable: 9.8 ft (3 m)
• Cable type: standard Ethernet cable
48
Installation
WARNING
(Figure 83).
Figure 84
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