CellarPro AH12S Series, Руководство пользователя

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V12.21
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10. (Optional) It should not be necessary to manually adjust the thermostatic expansion valve superheat
from the factory default setting. However if desired, the superheat may be adjusted as follows: 1)
Remove the cork tape insulation from the expansion valve body to locate the cap on the superheat
stem, and unscrew the cap using a 5/32 in. Allen wrench. 2) Using a 5/32 in. Allen wrench, locate
the setting spindle inside the superheat stem and make superheat adjustments ¼ turn at a time (¼
turn≈1°F). Turning clockwise increases superheat. Turning counter-clockwise decreases superheat.
The target superheat at the evaporator is 15°F +/- 3°F. 3) Reinstall the cap and cork tape insulation.
11. Confirm that the compressor, condenser fan, and evaporator fan are energized. Allow the system to
balance for 30 minutes, then record all readings on the Data Sheet and submit to CellarPro for
warranty activation review.
12. Observe that the condensing unit turns on and shuts off after pump down from the 24VAC
temperature controller. It may be necessary to temporarily raise the set point to force the unit to
cycle off. Once the solenoid valve closes, the system pumps down and the condensing shuts off
based on the value of the Low Pressure Cut-Out parameter Cou. If the condensing unit does not
cycle on/off in conjunction with the status on the temperature controller, please contact the factory
for assistance.
INSTALLATION TIPS & GUIDELINES

Make sure all electrical connections are secure.

Inspect Evaporator and Condensing unit fans to confirm airflow. There should
n’t be any excessive
vibration, noise or obstructions to airflow.

Observe system pressures and temperatures during charging and initial operation and keep note of
them as they will be required for the Service and Support Data Sheet which initiates the warranty.

Do not overcharge or use refrigerant with additives.

Remember that bubbles in a sight glass may be caused by a restriction as well as a shortage of
refrigerant. A properly charged system still may have small bubbles in the sight glass, so use actual
superheat and subcooling readings to charge the system.

Do not leave unit unattended until the system has reached normal operating conditions, and the
system has been observed properly cycling on/off to the desired set point and differential.

Make sure all access valve caps are in place and tight.