IM 830-6
56 www.DaikinApplied.com
Making Control Connections
Digital Ready Unit Electrical
Connections
Rigorously adhere to field wiring procedures regarding proper lockout
and tag out of components.
WARNING
!
To avoid electrical shock, personal injury or death:
1. Installer must be qualified, experienced technician.
2. Disconnect power supply before installation to prevent
electrical shock and damage to equipment.
3. Make all connections in accordance with electrical wiring
diagrams, and in compliance with national and local
codes. Use copper conductors only.
4. Do not exceed ratings of the device. This is a low voltage
device: Never apply more than 12VAC/VDC to any lead
or damage will result.
5. Avoid locations where excessive moisture, corrosive
fumes, or vibrations are present.
WARNING
!
the job-specific electrical drawings before proceeding with field
power and control wiring. See also the wiring diagram provided
on the unit ventilator right front access panel.
In addition, those unit ventilators equipped with optional electric
heating coil have electric heating coil power connections at
right end only.
Procedure
1. Provide power supply to right end compartment to match
unit nameplate.
Use copper conductors only. Use of aluminum conductors may result
in equipment failure and overheating hazards. All wiring in right hand
compartment must be class 1
CAUTION
!
2. Wire leads provided from unit ventilator electric connection
box to load side of unit power switch, (switch provided by
Daikin).
The junction box has 1"(25mm) and 2"(51mm) knockouts,
located 10-1/2"(267mm) from right end of unit.
3. Provide ground wire from grounding screw in switch
junction box to switch ground terminal.
4. Wire field power supply to line side of unit power switch.
Wire ground conductor to switch ground terminal.
5. Mount unit power switch in switch junction box and install
switch cover plate (provided).
6.
(A) shows power switch location
for valve control units and (B), and (C) show location for
Face & Bypass control units. (B) is for 208, 230 and 265
volt horizontal (AH) units.
7. See
for terminal strip designations
See Electrical Data/Motor Data and Unit Amp without
electric heat
See Electric Heat wiring data
Figure 94: Unit Left End Compartment Terminal Strip Location
Terminal Strip
Left End Compartment
for Mounting Controls
by Others
Figure 95: Terminal Strip