LOW PRESSURE CUTOUT SWITCH (LPCO) JUMPER.

TM5-4120-384-14

SOLENOID VALVE (COIL REMOVAL).-Continued

(3) Place coil

assembly

and

data

plate

valve

body

and

secure with nut.

(4)

Reconnect

connector

plug.

(5) Secure wires to existing

harnesses

with

new

plastic

tie

down straps or laacing cord.

(6) (Models F18H-3S and F18H-1S) Install top rear cover and

(Models F18H-3SA and F18H-3SB) Install

fabric cover (para 4-11).

top cover and fabric cover (para 4-11).

(7)

Connect

power

source.

LOW PRESSURE CUTOUT SWITCH (LPCO) JUMPER.

4-38.

If unit is to be operated in the "cool" mode at or below 0F

(-17.8C) ambiant the low pressure cutout (LPCO) switch (S5) must

See figure 4-34 and proceed as follows:

be jumpered.

Disconnect input power from the air conditioner

before performing maintenance on any part of the

The voltages used can be lethal.

electrical system.

Disassemble.

(1)

Disconnect

power

source.

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

It is not necessary to totally remove all wire connections

4-26).

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

Support the

enough to gain access to the pressure switches.

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

(3) (Models F18H-3S and F18H-1S) Remove top front cover (para

4-11). (Models F18H-3SA and F18H-3SB) Remove top cover (para 4-11).

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

Check that jumper will not

and 2 of low pressure cutout switch.

short out against frame of control panel.

4-111

Change 2