H8035/H8036
Z201686-0K
PAGE 3
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10101
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TM
INSTALLATION GUIDE
OPERATION
The H8035 and H8036 three-phase power transducers monitor energy parameters
from aggregate kW (real power) and kWh (consumption) to power factor per phase.
Integration of electronics lowers hardware and installation costs. The sensors
automatically detect phase reversal, so CT load orientation is not a concern. The CTs
and electronics are calibrated as a set, so it is necessary to color-match the CTs and
voltage leads when installing. These devices monitor up to 63 loads at a time on a
single RS-485 drop.
With two platforms to choose from (H8035 Energy Only or H8036 Enhanced Data
Stream), the applications for these devices are diverse, including aggregate billing,
tenant monitoring, energy management, performance contracting, demand limiting
and cooling plant optimization.
INSTALLATION
Disconnect and lock out power before installation.
The Enercept meter, including the current transformers (CTs), voltage connection
fuses, and fusepac, is permitted within electrical distribution equipment including
but not limited to panelboards, switchboards, motor control centers, and
transformers. Carefully review the equipment in which the Enercept meter will be
installed. The following installation conditions should be considered during the
installation process:
•
Review the equipment enclosure for ventilation openings. Wires will cross
many of these openings in a normal installation, however, do not install
the Enercept where it will substantially block ventilation openings in the
enclosure.
•
The Enercept meter and the wiring installed within a wiring space
or gutter should not exceed 75 percent cross sectional fill at the
Enercept meter parts as addressed in the NEC. Improper installation of
Enercept meter in the wire gutter of equipment may affect the thermal
performance of the equipment.
•
The arrangement of CTs within the equipment must also be considered to
ensure the bending radius of conductors is not adversely affected.
•
Review the arrangement and location of the CTs within the equipment.
The CT must not create undue strain on the conductor. A CT may require
appropriate support in order to address such a condition.
1. Choose a unique address and set the switches for that address as
shown in the Address Selection Switches section. Only addresses 1
to 63 can be used.
2. Connect the voltage leads to the phase conductors, at a location
that is not normally turned off. Connect voltage leads on the Line
side of the conductor to ensure constant power to the Enercept. For
a 3-phase system, connect the red lead to phase A, black to phase
B, and yellow to phase C. See the Wiring section on the following
page.
3. Snap the CT onto the conductor.
Connect CTs to the correspondingly
colored voltage lead. If the
application can exceed 20 times the
rated CT current, use wire ties to
secure the I-bar to the CT housing.
This CT automatically detects phase
reversal, so CT load orientation is not
important.
4. Remove the terminal block and attach the RS-485 wires. Observe (+), (-), and
Shield polarity. Insulate any exposed wiring.
SHIELD
SHIELD
S
S
SHIELD
120
Ω
Terminator
PRODUCT DIAGRAM
Fuse P
ack
Enercept
®
1
2
3
4
5
6
1.
Voltage leads:
Input range is 208 to 480V.
2.
Fuses:
Maximum current draw 60mA. Fuses provided by the factory are rated
1/2A, 600VAC, 200 KAIC. Replace only with fuses of the same type and rating.
3.
Modbus connector
4.
Status LED:
Blink codes: slow green for normal operation; slow red for incorrect
wiring or low power factor (less than 0.5); fast red for maximum current
exceedance.
5.
Modbus address switches:
Used to set the pulse output rate.
6.
External CTs:
Permanently attached; do not disconnect or use with other power
transducers.
Color match CTs and voltage leads! Example: clamp the
red labeled CT around the power conductor connected to
the red voltage wire.
Wire tie
RS-485
CONNECTION
STATUS
+
-
Shield
ADDRESS
1
2
4
8
16
32