www.DaikinApplied.com 35
IM 1083-3
Maintenance
Wipe the display as needed with a damp water only cotton
cloth. Do not use any type of cleaner as it may damage the
buttons or scratch the display. Do not paint.
Terminations
Daikin Applied recommends using shielded 22AWG for all
connections and a separate twisted pair for the power wire
connections. The shield should be earth grounded only at the
power source. Larger gauge wire may be required for runs
greater than 250’.
CAUTION
The AC power wiring at terminals [R] & [5] should be run in a
separate twisted shielded pair to avoid fluctuating and inac-
curate signal levels induced into the other sensor signal wires.
This sensor AC power can be run in the same conduit with the
sensor signal wire as long as it’s run in twisted, shielded pair and
terminated properly.
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 representative.
Figure 56: Sensor circuit board
Table 12: Unit Ventilator MicroTech board to room temperature sensor wiring
MicroTech Base Board
Terminal Block Label
TB1
H6-1
H6-2
H6-3
H6-4
H6-5
H6-6
H6-7
H6-8
Sensor 910247458
●
●
○
●
●
●
●
●
●
Sensor 910247448
●
●
○
●
●
○
○
●
●
Sensor 910247453
○
○
○
●
●
○
○
●
●
Sensor 910247450
○
○
○
●
○
○
○
●
●
Description
24VAC
Occupancy
Shutdown
(Not Used)
Status LED
Setpoint
Unit Mode
Fan Speed
10K RTD
Ground
Wire
908
907
906
909
912
901
902
911
910
Typical Wiring
Terminal Label
R
U
1 (ST)
3 (SP)
2 (FM)
6 (FC)
4 (UTS)
5 (GND)
Description
24VAC
Unoccupied
Unit Status
Output
Setpoint Adjust
Unit Mode
Fan Speed
Room Temp
Sensor &
Tenant Override
Ground
Room Temperature Sensor
Terminal Designations
●
= Active Terminal ○ = Not Used
Содержание ARQ
Страница 2: ......