Boyd AAVID Kodiak H02 Series, Техническое руководство

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Kodiak  Recirculating Chiller Technical Manual
Manual# 820-0043 Rev N, 11/25/2019
29
Problem Possible Cause Recommended Remedy
Low level indicator
and/or alarm stays
on
(control package II
and III only)
Low reservoir level. Top off the reservoir.
Level switch float is stuck.
Clean the reservoir and level
switch.
Level switch failure. Replace level switch.
Low temp.
indicator and/or
alarm stays on
(control package II
and III only)
Low temperature alarm set
point is set too close to
cooling set point temperature. Reset low temperature set point to
at least 3 degrees below cooling
set point.
High temp.
indicator and/or
alarm stays on
(control package II
and III only)
High temperature alarm set
point is set too close to
cooling temperature setpoint. Reset high temperature set point
to at least 3 degrees above set
point temperature for cooling.
Low coolant flow
Pump suction strainer is
clogged. (Positive
displacement pump only.)
Remove strainer and reinstall.
Low coolant level in the
reservoir. Check for leaks, fix leaks, and fill
reservoir.
Optional water filter
obstructed. Check filter. Change cartridge if
necessary.
Pressure relief on the pump is
set too low. (Positive
displacement pump or turbine
pump) Adjust the pressure relief to 60
psig. For a high-pressure
application (over 60 psig) consult
Boyd Applications Engineering.
Restriction in coolant lines
external to the chiller. Eliminate restrictions in the
coolant lines.
Frozen evaporator. Shut down unit - Call Boyd.