28
Voltage to compressor terminals during operation must be
within voltage range indicated on unit nameplate. On 3-phase
units, voltages between phases must be balanced within 2% and
the current within 10%. Use the formula below, to determine 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.
NOTE: Check all factory and field electrical connections for
tightness.
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 allowable
2%.
CONVENIENCE OUTLETS
Two types of convenience outlets are offered on 580J models:
Non-powered and unit-powered. Both types provide a 125-volt
GFCI (ground-fault circuit-interrupter) duplex receptacle rated at
15-A behind a hinged waterproof access cover, located on the end
panel of the unit. See Fig. 48 and 49.
Fig. 48 — Convenience Outlet Location (Sizes 08-14)
Fig. 49 — Convenience Outlet Location (Size 16)
Installing Weatherproof Cover — A weatherproof cover is now
required by UL standards for the factory-installed convenience
outlets. This cover cannot be factory-mounted due its depth; it
must be installed at unit installation. For shipment, the conve-
nience outlet is covered with a blank cover plate.
On units with electro-mechanical controls the weatherproof
cover kit is shipped in the unit’s control box. The kit includes the
hinged cover, a backing plate and gasket. On units with a factory
installed direct digital controller or RTU Open controller the
weatherproof cover kit is secured to the basepan underneath the
control box. See Fig. 50.
Disconnect All Power To Unit and Convenience Outlet.
Lock-Out and Tag-Out All Power — Remove the blank cover
plate at the convenience outlet; discard the blank cover.
Loosen the two screws at the GFCI duplex outlet, until approx-
imately
1
/
2
in. (13 mm) under screw heads are exposed. Press the
gasket over the screw heads. Slip the backing plate over the screw
heads at the keyhole slots and align with the gasket; tighten the
two screws until snug (do not over-tighten).
Mount the weatherproof cover to the backing plate as shown in
Fig. 50. Remove two slot fillers in the bottom of the cover to per-
mit service tool cords to exit the cover. Check for full closing and
latching.
Fig. 50 — Weatherproof Cover Installation
% Voltage Imbalance = 100x
max voltage deviation from average voltage
average voltage
Average Voltage
= 100x
(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.
WARNING
Failure to follow this warning could result in personal
injury or death.
Units with convenience outlet circuits may use multiple
disconnects. Check convenience outlet for power status
before opening unit for service. Locate its disconnect
switch, if appropriate, and open it. Lock-out and tag-out
this switch, if necessary.
A
B
C
MOTOR
CONTROL
BOX
ACCE
SS
PANEL
CONVENIENCE
OUTLET
GFCI
PWRD-CO
FU
S
E
S
WITCH
PWRD-CO
TRAN
S
FORMER
Convenience
O
u
tlet
GFCI
Pwd-CO
F
us
e
S
witch
Pwd-CO
Tr
a
n
s
former
Di
s
connect
Acce
ss
P
a
nel
RECEPTACLE
NOT SHOWN
COVER – WHILE-IN-USE
WEATHERPROOF
BASE PLATE FOR
GFCI RECEPTACLE
Содержание 580J*16D Series
Страница 4: ...4 Fig 2 Unit Dimensional Drawing Sizes 08 09 and 12 ...
Страница 5: ...5 Fig 2 Unit Dimensional Drawing Sizes 08 09 and 12 cont ...
Страница 6: ...6 Fig 3 Unit Dimensional Drawing Size 14 ...
Страница 7: ...7 Fig 3 Unit Dimensional Drawing Size 14 cont ...
Страница 8: ...8 Fig 4 Unit Dimensional Drawing Size 16 ...
Страница 9: ...9 Fig 4 Unit Dimensional Drawing Size 16 cont ...
Страница 15: ...15 Fig 9 580J 16 Roof Curb Details ...
Страница 32: ...32 Fig 58 580J 08 14 Typical Perfect Humidity Dehumidification System Humidistat Wiring ...
Страница 33: ...33 Fig 59 580J 16 Typical Perfect Humidity Dehumidification System Humidistat Wiring ...
Страница 48: ...48 Fig 67 580J 08 12N P Typical RTU Open System Control Wiring Diagram ...
Страница 49: ...49 Fig 68 580J 08 14 Typical RTU Open System Control Wiring Diagram ...
Страница 50: ...50 Fig 69 580J 16 Typical RTU Open System Control Wiring Diagram ...
Страница 51: ...51 Fig 70 580J 8 14 Typical RTU Open System Control Wiring Diagram with Perfect Humidity System ...
Страница 52: ...52 Fig 71 580J 16 Typical RTU Open System Control Wiring Diagram with Perfect Humidity System ...