Electrical Installation
DANGER
Hazardous voltage. Can cause severe injury or death.
Disconnect electric power before servicing equipment. More than one
disconnect may be required to de-energize the unit.
WARNING
Provide proper line voltage and phase balance .
Improper line voltage or excessive phase imbalance constitutes product
abuse. It can cause severe damage to the unit’s electrical components.
WARNING
Electrical shock hazard. Can cause severe injury or death
.
Connect only low voltage NEC Class II circuits to terminal block TB2.
DANGER
Overheating or failure of the gas supply to shut off can
cause equipment damage, severe personal injury or
death .
Turn off the manual gas valve to the appliance before shutting off
the electrical supply.
Electrostatic Discharge (ESD)
Disconnect Power to the Rebel Rooftop Unit prior to
inspecting and/or repairing .
When inspecting/repairing Rebel Rooftop units the technician or
building owner must take precautions to ground themselves to
the unit. This will prevent them from damaging the circuit boards
mounted inside the inverter box, VFD, and main control panel.
Electrostatic Discharge (ESD) can damage components in a
manner that is not always readably detectable. A static potential
can easily be generated on a person that reaches 25 kVolts. If
this potential is discharged into one of the unit’s circuit boards it
can degrade part of the current carrying conductors inside.
In order to prevent ESD damage the technician and the unit
must both be at the same electrical potential. The technician
must ground themselves to the unit; this can be achieved by
touching any galvanized (not painted) section of the unit. The
unit’s base rail and refrigerant piping are both reliable options
as well as the control panel backpanel. The next step is to
attach a grounded wrist or ankle strap to the copper tubing or
backpanel. This grounding strap must have direct contact with
the technician’s skin. Once this has been done the technician is
free to work on electrical components inside the unit.
All Units
Wiring must comply with all applicable codes and ordinances.
The warranty is voided if wiring is not in accordance with these
specifications.
According to the
means shall be located within sight of and readily accessible
from the air conditioning equipment. The unit can be ordered
with an optional factory mounted disconnect switch. This
switch is not fused unless ordered with a fuse. Power leads
must be over-current protected at the point of distribution. The
maximum rated overcurrent protection device (MROPD) value
appears on the unit nameplate.
All units are provided with internal power wiring for single point
power connection. The power block or an optional disconnect
switch is located within the main control panel. Field power leads
are brought into the unit through knockouts in the bottom of the
unit nameplate to determine the number of power connections.
NOTE:
Two wire entry points, refer to certified drawings for
dimensions .
Table 6: DPS 003–015, Recommended Field Power Wiring
Ampacity
(MCA)
Number of
Power Wires
Per Phase
Wire
Gauge
Insulation
Temperature
Rating (°C)
20
1
14
75
25
1
12
75
35
1
10
75
50
1
8
75
65
1
6
75
85
1
4
75
100
1
3
75
115
1
2
75
130
1
1
75
150
1
Jan-00
75
175
1
Feb-00
75
200
1
Mar-00
75
230
1
Apr-00
75
255
1
250
75
285
1
300
75
310
1
350
75
335
1
400
75
380
1
500
75
420
1
600
75
IM-1125-13 • REBEL ROOFTOPS
18
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Electrical Installation
