Carrier INFINITY 48XL-A Owner's Information Manual page 4

4. Remove the front access panel.
5. Move the selector switch on the internal gas valve to the OFF
position.
6. Replace the front access panel
7. Restore electrical power to the unit and set system switch to
COOL.
8. Set the temperature selector on UI slightly below the room
temperature to start unit.
55
STEP 1
STEP 6
MAIN
ON
OFF
STEP 8
STEP 2
STEP 4
STEP 9
Fig. 4 - - To Start Unit Gas Heat
To shut off unit electric cooling:
Refer to Fig. 6 while proceeding with the following steps.
1. Set the temperature selector on UI to highest temperature set-
ting and set system SWITCH to OFF.
2. Close the external manual shutoff valve.
3. Turn off the electrical power supply to the unit.
STEP 7
4
MAIN
ON
OFF
STEP 3
STEP 5
72
STEP 10
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