Equipment Precautions - Lydall Affinity User Manual

Equipment Precautions

Failure to adhere to these precautions will void the warranty and may damage the chiller.
1. This chiller has been shipped without coolant. Do not run it without connecting the
coolant lines and keeping them filled with appropriate coolant. Never run the pump dry
because it will be quickly damaged without liquid.
2. Never use coolants which are incompatible with the components in this chiller's coolant
loop. Some coolants may not damage the coolant loop components, yet may
significantly derate the chiller's cooling capacity. Never use automotive antifreeze or
other antifreeze containing silicates because silicates will cause the pump seals
to fail. Check with the factory if there are questions about the coolant.
3. Maximum storage temperature for the unit is 52EC (125EF).
4. This chiller operates on three phase electricity. Some components are sensitive to
phase sequence. The chiller is designed and wired so that all components will operate
properly if the phase sequence is correct. This unit is protected by a Phase Reverse
Relay, to prevent it from running if the sequence is incorrect. If the chiller fails to start
on installation, a qualified electrical technician should check the relay in the electrical
box. If the light on the relay is not brightly lit, the phase sequence is incorrect. The
technician should switch any two wires external to the chiller. Do not modify the
wiring inside the electrical box.
5. The chiller is designed for indoor use only. Do not operate the chiller in ambient
temperatures below 7EC (45EF). If the chiller has been exposed to ambient
temperatures below 7EC, allow 24 hours at ambient temperatures above 7EC to warm
the oil in the compressor as well as the refrigerant before operating.
6. This chiller exhausts the heat it extracts to Facility Water. The Facility Water should
have a temperature of 30EC (86EF) or lower. The Facility Water flow will be controlled
by the water valve at the chiller's condenser. At maximum, the flow may need to be as
high as four liters (one gallon) per minute for each kilowatt of heat extracted. The
Facility Water pressure should be at between two and seven bar (thirty and one hundred
pounds per square inch).
7. Routinely inspect the pump inlet strainer located in the reservoir for debris. Turn the
chiller off, then remove and clean the strainer as required to permit free flow of coolant.
Prevent foreign debris from entering the coolant lines while the strainer is removed.
Hint: A plastic sandwich bag may be used to wrap the strainer to contain most of the
debris. Failure to keep the strainer clean will reduce the coolant flow and damage the
pump.