2
INSTALLATION
CAUTION
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Pressure hazard:
Power must be turned off and locked out at the service panel when the isolation valves are in the
closed position. Failure to do so may cause damage to heating system components, fluid leaks and unexpected release
of heated coolant.
Overheating hazard:
After completing line installation, top off the fluid levels to compensate for the fluid used to fill the
lines and heating tank. Do not operate the heating system without the presence of fluid. Position the heating tank to
ensure it is completely full of fluid while in operation.
Pump priming:
Fill supply line with fluid. Pump is not self-priming. Fluid must be present in the pump before start-up.
Trapped air inside the pump will cause pump and seal damage.
Pump seal damage:
Do not reduce the coolant supply line to an inner diameter smaller than the pump inlet; pump seal
damage will occur.
Isolation valves:
Hotstart recommends installing full-flow ball valves to isolate the heating system in order to perform
service on the system or engine without draining coolant.
Pressurized steam hazard:
Coolant pressure relief valve outlet must be vented to the atmosphere in case an over-
pressure release of heated coolant occurs. Do not connect pressure relief plumbing to coolant system.
Proper lifting:
Use proper lifting equipment and rigging to move this equipment. Create a plan before attempting to
move. Heating systems with flanges have marked lift points. When lifting, use soft straps and avoid placing side-loads on
heating system plumbing components, including fluid pumps.
NOTICE
Heating system damage:
Engine vibration will damage the heating system; isolate the heating system from vibration.
Never mount the heating system or components directly to the engine. If the heating system is installed using rigid pipe,
use a section of flexible hose in the supply and return lines to isolate the heating system from engine vibration.
Improper mounting hazard:
Reference heating system component drawings before mounting the system. Unless
mounted properly, the heating system will be unstable.
Summary of Contents for CLM
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