19
appropriate conduits. Connect the power conduit to the internal
disconnect (if unit is so equipped) or to the external disconnect
(through unit side panel). A hole must be field cut in the main
control box bottom on the left side so the 24-v control connec-
tions can be made. Connect the control power conduit to the
unit control box at this hole.
UNITS WITHOUT THRU-BASE CONNECTIONS (ELEC-
TRICAL CONNECTIONS)
1. Install power wiring conduit through side panel openings.
Install conduit between disconnect and control box.
2. Install power lines to terminal connections as shown in
Voltage to compressor terminals during operation must be within
voltage range indicated on unit nameplate. On 3-phase units, volt-
ages between phases must be balanced within 2% and the current
within 10%. Use the formula shown in the example below to de-
termine the percent of voltage imbalance. Operation on improper
line voltage or excessive phase imbalance constitutes abuse and
may cause damage to electrical components. Such operation
would invalidate any applicable Bryant warranty.
Example: Supply voltage is 230-3-60
AB = 224 v
BC = 231 v
AC = 226 v
Determine maximum deviation from average voltage.
(AB) 227-224 = 3 v
(BC) 231-227 = 4 v
(AC) 227-226 = 1 v
Maximum deviation is 4 v.
Determine percent of voltage imbalance.
This amount of phase imbalance is satisfactory as it is below the maximum allow-
able 2%.
FIELD CONTROL WIRING
The 582J unit requires an external temperature control device.
This device can be a thermostat (field-supplied), controller (avail-
able as factory-installed option or as field-installed accessory, for
use as a stand alone control), or the RTU Open Controller for
Building Management Systems using non-CCN protocols (RTU
Open is available as a factory-installed option only).
THERMOSTAT
Install a Bryant-approved accessory thermostat according to in-
stallation instructions included with the accessory. For complete
economizer function, select a two-stage cooling thermostat. Lo-
cate the thermostat accessory on a solid wall in the conditioned
space to sense average temperature in accordance with the ther-
mostat installation instructions. Typical low-voltage connections
Fig. 35 — Low-Voltage Thermostat Connections
If the thermostat contains a logic circuit requiring 24v power, use a
thermostat cable or equivalent single leads of different colors with
minimum of seven leads. If the thermostat does not require a 24v
source (no “C” connection required), use a thermostat cable or
equivalent with minimum of six leads. Check the thermostat in-
stallation instructions for additional features which might require
additional conductors in the cable.
For wire runs up to 50 ft. (15 m), use no. 18 AWG (American
Wire Gage) insulated wire [95°F (35°C) minimum]. For 50 to 75
ft. (15 to 23 m), use no. 16 AWG insulated wire [95°F (35°C) min-
imum]. For over 75 ft. (23 m), use no. 14 AWG insulated wire
[95°F (35°C) minimum]. Wire sizes larger than no. 18 AWG can-
not be directly connected to the thermostat and will require a junc-
tion box and splice at the thermostat.
Thermostat Wiring, Units Without Thru-Base Connection Kit
Pass the thermostat control wires through the hole provided in the
corner post; then feed the wires through the raceway built into the
corner post to the control box. Pull the wires over to the terminal
strip on the upper-left corner of the Central Terminal Board
(CTB). See Fig. 36.
NOTE: If thru-the-bottom connections accessory is used, refer to
the accessory installation instructions for information on routing
power and control wiring.
Average Voltage
=
(224 + 231 + 226)
=
681
=
227
3
3
% Voltage Imbalance = 100x
4
=
1.78%
227
IMPORTANT: If the supply voltage phase imbalance is more than 2%, contact
your local electric utility company immediately.
A
B
C
MOTOR
X
C
G
W2
C
W2
G
W1
O/B/Y2
Y2
R
W1
R
Y1
Y1
T
H
E
R
M
O
S
T
A
T
(Note 1)
(Note 2)
Note 1: Typical multi-function marking. Follow manufacturer’s configuration
Instructions to select Y2.
Note 2: Y2 to Y2 connection required on single-stage cooling units when
integrated economizer function is desired.
Field Wiring
Centr
a
l
Termin
a
l
Bo
a
rd
Typic
a
l
Thermo
s
t
a
t
Connection
s
Summary of Contents for 582J 04-06
Page 4: ...4 Fig 2 Unit Dimensional Drawing ...
Page 5: ...5 Fig 2 Unit Dimensional Drawing cont ...
Page 21: ...21 Fig 38 Typical Perfect Humidity Adaptive Dehumidification System Humidistat Wiring ...
Page 23: ...23 Fig 40 Typical Control Wiring Diagram Electro Mechanical with W7212 ...
Page 25: ...25 Fig 43 Typical IGC Control Wiring Diagram ...
