Carrier 260L Start-Up, Preliminary Checks, Check Installation Of Lamp Without Safety Shield

START-UP

PRELIMINARY CHECKS

„BI-PIN FLUORESCENT LAMP INSTALLATION/ VERIFICATION — Before applying power to the unit, verify that all lamps have been properly installed and are fully engaged in the lamp holders. Sizes 750L, 1100L, and 1300L have 2 lamps, one in the signboard and one inside the cooler. Sizes 260L and 300L have one lamp inside the cooler.

Improperly installed lamps may cause damage to the lighting circuit. Carrier will not be responsible for equipment or component failures or other dam- ages or losses that arise as a result of improper lamp installation.

To achieve proper lamp engagement, rotate the lamp 90 degrees from its insertion position until it snaps or clicks into place.

On units without safety shields, visually verify proper lamp installation by checking the identification mark on the end of the bulb. If the bulb has been properly installed, the mark will be centered between the “halves” of the lamp holder. Refer to Figure 7.

On units with safety shields, the identification mark cannot be seen. (See Figure 8.) Verify manually that the lamp has been rotated and locked into place.

a79-7

BI-PIN LAMP END IDENTIFICATION MARK

Properly installed lamp without shield. Verify identification mark is positioned as shown.

FIGURE 7 — CHECK INSTALLATION OF LAMP WITHOUT SAFETY SHIELD

PINS MAY NOT BE VISIBLE IN	a79-8
ACTUAL INSTALLATION

Properly installed lamp with shield. Requires manual verification that lamp has been rotated and locked into place.

Improperly installed lamp with shield. Note that pins have not achieved full 90° rotation.

FIGURE 8 — CHECK INSTALLATION OF LAMP WITH SHIELD

6