Installation - Mechanical
PKG-SVX027A-EN
35
e. Discharge air temperature
Electrical Installation
1. With main power still dis-connected.
a. Circuit breakers on.
b. Place fuses in fan fuse holder.
c. One fuse pulled on control power transformer
primary.
d. Fan fuse holders connected, ie, closed.
e. Variable speed compressor fuses installed.
2. At the terminal block or disconnect switch.
a. Verify:
i. No continuity between phases.
ii. No continuity between each phase and ground.
b. Do not hi-pot with variable speed compressor
drives or fan fuses installed or fixed speed
compressor motor protection module connected.
3. Once all these items above have been verified:
a. Replace control power transformer primary fuse.
4. Connect main power and ground.
5. With fixed speed compressor circuit breakers, and fan
fuse holders open, and variable speed compressor
enable plug removed, apply power to unit using the
unit or remote mounted disconnect switch.
Important:
With a phase rotation meter, verify
clockwise rotation at the terminal block
using standard electrical safety procedures.
6. After clockwise rotation is confirmed, remove main
power unit and verify the unit is de-energized.
7. With fixed speed compressor circuit breakers still
open, and variable speed compressor enable plug still
removed, close fan fuse holders and re-apply power.
TD7 Installation.
1. Hold faceplate on front side of Low Voltage door and
install TD7 onto front of Low Voltage door.
2. Attach brackets on back side of Low Voltage door to
secure the TD7 to the door.
CAUTION
Live Electrical Components!
Failure to follow all electrical safety precautions when
exposed to live electrical components could result in
death or serious injury.
When it is necessary to work with live electrical
components, have a qualified licensed electrician or
other individual who has been properly trained in
handling live electrical components perform these
tasks.
Figure 31.
TD7 Face plate
Figure 32.
TD7 Installation on front
Figure 33.
TD7 Installation on back with brackets
