LOW PRESSURE CUTOUT SWITCH (LPCO) JUMPER.-Continued

TM5-4120-383-14

4-39.

LOW PRESSURE CUTOUT SWITCH (LPCO) JUMPER.-Continued

Disassemble.

(1) Disconnect power at power source.

(2) Remove control module and junction box (para 4-21 and

4-27).

It is not necessary to totally remove all wire connections

and capillary line so long as the junction box can be pulled out

enough to gain access to the pressure switches. Support the

junction box so that wires and capillary line are not damaged.

(3) Remove top front cover (para 4-11).

(4) Install jumper wire (20 AWG minimum) between terminals 1

and 2 of low pressure cutout switch. Check that jumper will not

short out against frame of control panel.

(5) Fabricate CAUTION tag (shown below) to place on control

panel to show that low pressure cutout switch has been bypassed.

CAUTION

Air conditioner low pressure cutout switch (S5)

has been bypassed.

Compressor will not shut off

under low suction pressure conditions.

CAUTION TAG EXAMPLE

Assemble.

(1) Install junction box and control module (para 4-21 and

4-27).

(2) Install top front cover (para 4-11).

(3) Connect power at power source.

NOTE

Remove the LPCO jumper when outside air temperature

increases to 40F (5C).

4-109