2
INSTALLATION
CAUTION
!
Isolation valves:
HOTSTART recommends installing full-flow ball valves to isolate the heating system in order to allow
the engine and heating system to be independently drained of coolant and/or oil during servicing.
Pressure hazard:
Power must be turned off and locked out at the service panel when the isolation valves are in the
closed position. This product generates heat during operation. Failure to do so may cause damage to heating system
components, leaks and unexpected release of heated coolant. It is the responsibility of the installer and operator to
ensure that no unsafe condition can result from the generation of pressure. In EU countries, PED (97/23/EC) compliant
pressure relief may be required.
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 oil supply line to an inner diameter smaller than the pump inlet; pump seal
damage could occur.
Check valve:
HOTSTART recommends installing a customer-supplied swing-type or full-flow check (non-return) valve to
prevent oil from flowing back into the oil sump. If the pump is installed above the minimum oil level, a check valve
must
be installed.
