After following unit installation and maintenance
activities, observe the system operation to verify that
normal operation has resumed prior to leaving the
equipment to operate unattended.
Only use parts provided with, or specified for use with,
the Surna chiller equipment.
DO NOT operate the Surna chiller at a temperature
setting lower than 45°F (7°C) or risk freezing the
evaporator, which is not covered under the product
warranty.
DO NOT operate the Surna chiller without an
appropriate mixture of propylene glycol. Surna
recommends using a 50%/50% (glycol/water) mixture
when outdoor temperatures fall below 20°F (-7°C). In
all cases, maintain a minimum 30% propylene glycol by
volume. Use only colored, USP food grade propylene
glycol.
DO NOT use the Surna chiller indoors.
DO NOT operate the Surna chiller without adequate
water flow. Process fluid must be supplied at 2.5 GPM
per nominal cooling ton (i.e. 18 GPM for 8-ton chiller) to
reduce the risk of freezing evaporator.
DO NOT remove the grounded connection while power
is being supplied to the Surna chiller equipment. Doing
so presents an electric shock hazard to users and service
personnel.
Chiller systems shall be used in accordance with the
safety regulations in your local jurisdiction. Please
contact Surna if you are unsure about how to properly
incorporate our chillers within your system.
7
Summary of Contents for 1-18-01
Page 2: ......
Page 5: ...5...
Page 14: ...1 5 TO 4 TON WIRING DIAGRAM 1 4...
Page 15: ...8 TON WIRING DIAGRAM 1 5...
Page 20: ...s urn a c om 1780 55th Street Suite A Boulder CO 80301 303 993 5271 info surna com A P E...