JOHNSON CONTROLS
15
FORM 150.62-NM6 (103)
Electrical Notes and Legend located on page 19.
FIG. 3 – MULTIPLE POINT POWER SUPPLY CONNECTION – TERMINAL BLOCK (0040 - 0080)
MULTIPLE POINT POWER SUPPLY CONNECTION –
TERMINAL BLOCK (0040 - 0080)
1
It is possible that multiple sources of power can be supplying the unit power panel. To prevent
serious injury or death, the technician should verify that NO LETHAL VOLTAGES are
present inside the panel AFTER disconnecting power, PRIOR to working on equipment.
The unit evaporator heater uses 120VAC. Disconnecting 120VAC power from the unit, at
or below freezing temperatures, can result in damage to the evaporator and unit as a result
of the chilled liquid freezing.
Power Panel Control Panel
Terminal
Block1
Terminal
Block2
1L11L2 1L3
2L12L2 2L3
GRD
GRD
MICROPANEL
2
L
CTB2
13 14
CTB1
Field Provided Unit Power Supply
Field Provided 120- 1-60
Micropanel Power Supply if Control
Transformer not Supplied
Flow Switch
See electrical note 9
Power Panel Control PanelPower Panel Control Panel
Terminal
Block1
Terminal
Block2
1L11L2 1L31L11L2 1L3
2L12L2 2L32L12L2 2L3
GRDGRDGRD
GRDGRDGRD
MICROPANEL
2
L
CTB2
2
L
CTB2
13 1413 14
CTB1
Field Provided Unit Power Supply
Field Provided 120- 1-60
Micropanel Power Supply if Control
Transformer not Supplied
Flow Switch
See electrical note 9
LD07720