EarthLinked SCWD-024-1C, Quick Start Instructions

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SCWD-QS (12/16) Page 49
Troubleshooting
If you experience difficulties with the EarthLinked
®
system, please review the appropriate section of
the manual. It may be helpful to have another professional HVAC or ETI approved refrigeration
service person review and check it with you.
Time and expense can be saved by taking a thoughtful and orderly approach to troubleshooting.
Start with a visual check: Are there loose wires, crimped tubing, missing parts, etc?
1) Compressor
After setting the remote (wall) thermostat system switch to the “OFF” position and the thermostat fan
switch to the “AUTO” position, proceed to check the supply voltage at (1) the line terminals to the
breaker/disconnect; 2) the system side of the breaker/disconnect, and 3) the line-side of the
transformer. Verify the proper voltage rating for the system. Reference Figure 32.
CAUTION!
SERVICE MAY BE PERFORMED ONLY BY AN EARTHLINKED
TECHNOLOGIES AUTHORIZED PROFESSIONAL HVAC OR
REFRIGERATION SERVICE PERSON. USE ONLY SAFE AND
APPROVED SERVICE TECHNIQUES.
IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION,
MAINTENANCE OR SERVICE CAN CAUSE 1) THE
EARTHLINKED
®
SYSTEM OR COMPONENTS TO MALFUNCTION
AND OR FAIL, 2) PROPERTY DAMAGE, INJURY OR DEATH.
IMPORTANT!
EarthLinked® Refrigerant System Safety Switches
EarthLinked® compressor units are equipped with the following three
safety switches that will turn the compressor off if the following limits
are exceeded.
High Pressure Switch: Located between the compressor discharge port and
the reversing valve, the cut-out pressure is 600 psig. This is a manual reset
switch.
Low Pressure Switch: Located between the ACC and the compressor
suction port, the cut-out pressure is 25 psig. This is an automatic reset
switch.
Discharge Temperature Switch: Located on the compressor discharge line,
the cut-out temperature is 240°F. This is a manual reset switch.