Page 2
400 Series
400 Series
Component Access and Removal
6-2
COMPONENT ACCESS AND REMOVAL:
This section explains how to access and remove components on / in a 400 Series unit. Due to the diversity of the
400 Series, this section is divided into three sub-sections with the model 424 being covered first, followed by the
models 427 and 427R, and the third sub-section covers the model 430. In each of the three sub-sections you will
find access and removal instructions for the external cosmetic and mechanical components, followed by the interior
cosmetic components, the interior mechanical components and the sealed system components.
Before continuing, please take note of the WARNINGS and CAUTIONS below.
IF IT IS NECESSARY TO REMOVE A UNIT FROM ITS INSTALLATION, REMEMBER THAT THE UNIT COULD
TIP FORWARD WHEN PULLED FORWARD, BEYOND THE ANTI-TIP COMPONENTS, RESULTING IN SERIOUS
INJURY OR DEATH. PULLING A UNIT FROM ITS INSTALLATION SHOULD ONLY BE PERFORMED BY AN
AUTHORIZED SERVICE TECHNICIAN OR INSTALLER.
TO AVOID ELECTRIC SHOCK, POWER TO THE UNIT MUST BE DISCONNECTED WHENEVER ACCESSING
AND/OR REMOVING COMPONENTS POWERED BY ELECTRICITY OR COMPONENTS NEAR OTHER ELEC-
TRICAL COMPONENTS.
When removing or disconnecting door closers and/or hInge assemblies, remember they are spring loaded
and may recoil quickly when released.
To avoid static electric damage to the control board, always handle the board by the edges.
When working in the compressor area, remember that compressor and tubing could be hot.
When working on or around evaporator or condenser, remember evaporator and condenser fins are sharp.
WHEN REMOVING A DOOR FROM A UNIT, REMEMBER THAT DOORS ARE HEAVY. IF A DOOR WERE TO
FALL , IT COULD CAUSE SERIOUS PERSONAL INJURY.
