16
• Jumper bar assemblies are connected to the line side lugs of the circuit breakers.
Jumper bar is assembled for left (upflow) cabinet power wiring entrance. To convert to
right (upflow) power entrance: Remove jumper cover, remove jumper bar from circuit
breakers, remove screw on back holding left lug in upper hole to bar, reassemble lug
in lower hole and retighten screw. Use the same procedure to move the right lug to
the upper mounting hole. Reassemble jumper bar into circuit breakers and tighten
lugs. Jumper bar is now ready for wiring from the opposite side.
• If a factory supplied jumper bar for single supply circuit is removed from unit to make
multiple supply circuits the line side of the individual circuit breakers must be covered
with finger safe covers. (See information on accessories for part numbers.)
• After wiring is complete, make sure finger safe cover(s) are replaced over circuit
breaker(s) lugs covering lug where field connections are made. On units with jumper
bar, make sure jumper bar cover is replaced and secured in place. Covers provided
for jumper bar must have side of cover broken off on the side wiring has been con-
nected so that field supply will clear under appropriate side of cover. Units with circuit
breakers must have covers in place to meet requirements as a service disconnect.
3.2 CONTROL WIRING
IMPORTANT: Class 2 low voltage control wire should not be run in conduit with
power wiring and must be separated from power wiring, unless class 1 wire of
proper voltage rating is used.
• Low voltage control wiring should be 18 AWG color-coded (105°C minimum). For
lengths longer than 100 ft., 16 AWG wire should be used.
• Control wiring should be routed through 1/2” dia. knockout near power wiring
entrance on either left or right side of unit. After opening selected knockout, install
bushing (supplied in parts bag) in openings.
• If control wiring is routed through right side (upflow), it must be routed through extrud-
ed holes in lower front of blower housing behind power raceway to the left side of
blower housing. If routed through left side (upflow), it should be routed through
extruded hole in lower front left blower side.
• Field control connections are made to terminals extending from left side of control
compartment (upflow position).
• See wiring diagrams attached to indoor and outdoor sections to be connected, control
wiring diagram booklet supplied with outdoor heat pump section, or Figures 8 and 9.
• Do not leave excess field control wiring inside unit, pull excess control wire to outside
of unit and provide strain relief for field control wiring on inside of cabinet at point
wiring penetrates cabinet.
• Make sure, after installation, separation of control wiring and power wiring has been
maintained.
3.3 GROUNDING
• Grounding may be accomplished by grounding metal conduit when installed in accor-
dance with electrical codes to the unit cabinet.
• Grounding may also be accomplished by attaching ground wire(s) to ground lug(s)
provided in the unit wiring compartment.
• Ground lug(s) are located close to wire entrance on left side of unit (upflow). Lug(s)
may be moved to marked locations near wire entrance on right side of unit (upflow), if
alternate location is more convenient.
• Use of multiple supply circuits require grounding of each circuit to lug(s) provided in
unit.
!
WARNING
THE UNIT MUST BE PERMANENTLY GROUNDED. FAILURE TO DO SO CAN
RESULT IN ELECTRICAL SHOCK CAUSING PERSONAL INJURY OR DEATH.
Содержание RBHP-17A00NH1
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