Carrier 69NT40--541--200 TO 299 Operation And Service page 6

SPECIFIC WARNING AND CAUTION STATEMENTS - - Continued
CAUTION
If the thermostatic expansion valve is found
to be in need of replacement, then the
power head and cage assembly are to
replaced as a pair. They are a matched pair
and replacing one without the other will
affect the superheat setting.
CAUTION
DO NOT disassemble piston from NEW suc-
tion modulating valve powerhead assem-
bly. Doing so may result in damage to pis-
ton.
CAUTION
The unit must be OFF whenever a program-
ming card is inserted or removed from the
controller programming port.
T-317
Do not allow moisture to enter wire splice
area as this may affect the sensor resis-
tance.
Do not allow the recorder stylus to snap
back down. The stylus arm base is spring
loaded, and damage may occur to the chart,
or the stylus force may be altered.
The inside mechanism of the recorder,
particularly the inside of the element
housing should never be oiled, however,
control mechanisms should be sprayed
periodically (every 60 days) with corrosion
inhibiting CRC 3-36a or 6-66 or LPS no. 2.
Recorder element capillary tubing may be
bent, but never sharper than 1/2" radius;
extra care should be taken when bending
adjacent to welds. The bulb should never
be bent, as this will affect calibration.
Safety-4
CAUTION
CAUTION
CAUTION
CAUTION