Surna 1-18-01, Operating And Maintenance Manual

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LOCATION
Provide rigid, non-warping mounting pads or a concrete
foundation of sufficient strength and mass to support
the total weight (including completed piping and full
operating charges of refrigerant, oil, and water). Once in
place, the unit must be level within ¼ inch (0.64 cm) over
its length and width. Consult your local building codes
and guidelines before attempting roof mounting.
Following installation, verify there is a minimum of 24
inches (60.96 cm) of clearance from obstruction on all
sides and 7 feet (2.13 m) of clearance above the unit to
ensure proper airflow over the condenser.
ELECTRICAL
All wiring must comply with local codes and the latest
version of the National Electric Code (NEC). Electrical
work should only be performed by licensed, qualified
contractors. Ensure all conductors and circuit breakers
are appropriately sized. Reference the
specifications
section in this document for electrical details.
PLUMBING
IMPORTANT: Chillers are designed to run on a mixture
of propylene glycol and water. Maintain a minimum
30% propylene glycol by volume. A 50%/50% mixture
is necessary when outdoor temperatures fall below 10°F
(-12°C). Running the chiller with insufficient quantities
of glycol can lead to damage, which is not covered by
warranty. DO NOT use ethylene glycol in the Surna
chiller system.
Depending on the size of your unit, the chilled water
plumbing connections will be either ¾ inch (1.9 cm) or 1
inch (2.54 cm). Refer to the
specifications section in this
document for further details. When transitioning to PVC,
larger pipe must be used. Contact Surna with questions
on pipe sizing.
Be sure to install the water connections to the
appropriately labeled “WATER IN” and “WATER OUT”
ports on the chiller unit. The chiller will not function if
these connections are reversed.
INSTALLATION
INSTRUCTIONS
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