Power Wiring - Heat Controller HTV Series Installation, Operation & Maintenance Instructions Manual

Heat Controller, Inc.
Electrical - Power Wiring
T
WARNING! Disconnect electrical
power source to prevent injury or
death from electrical shock.
T
CAUTION! Use only copper
conductors for field installed electrical
wiring. Unit terminals are not
designed to accept other types of
conductors.
ELECTRICAL - LINE VOLTAGE
All field installed wiring, including electrical
ground, must comply with the National
Electrical Code as well as all applicable
local codes. Refer to the unit electrical
data for fuse sizes. Consult wiring diagram
for field connections that must be made by
the installing (or electrical) contractor. All
final electrical connections must be made
with a length of flexible conduit to minimize
vibration and sound transmission to the
building.
GENERAL LINE VOLTAGE WIRING
Be sure the available power is the same
voltage and phase shown on the unit serial
plate. Line and low voltage wiring must be
done in accordance with local codes or the
National Electric Code, whichever is
applicable.
POWER CONNECTION
Line voltage connection is made by
connecting the incoming line voltage wires
to the "L" side of the contactor as shown in
Figure 9. Consult Table 4 for correct fuse
size.
HTV/HTD/HTH SERIES
ELECTRICAL - POWER WIRING
⌧ WARNING! ⌧
⌧ CAUTION! ⌧
Figure 9: HTV/HTD/HTH Single Figure 9: HTV/HTD Single Phase Line
Phase Line Voltage Field Wiring
Voltage Field Wiring
Contactor CC
Unit Power Supply
See Electrical Table
for Breaker Size
Transformer
BLOWER SPEED SELECTION
ECM Motor speeds are set via low voltage
controls (see "ECM Blower Control"). Most
Heat Controller units are shipped on the
Consult Engineering Design Guide for
specific unit airflow tables.
medium speed tap. Consult Engineering
Design Guide for specific unit airflow tables.
Typical unit design delivers rated airflow at
nominal static (0.15 in. w.g.) on medium
speed and rated airflow at a higher static
(0.4 to 0.5 in. w.g.) on high speed for
applications where higher static is required.
Low speed will deliver approximately 85% of
rated airflow at 0.10 in. w.g.
21
24
Capacitor
CXM Control
Low Voltage
Connector