Water Heater Hose Connection Points - Mercury MerCruiser Product Applications Manual

• On models with closed cooling systems, additional coolant must be added to the fresh
water system to fill the heater. See Antifreeze Recommendation. Operate the engine
while filling and recheck the level several times to ensure that all air has been purged
from the system.
IMPORTANT: Closed cooling system capacity will be different than shown in Operation,
Maintenance, and Warranty manual. Be sure to advise owner of the proper capacity for
your application.
• Refer to heater manufacturer's instructions for specific installation details.

Water Heater Hose Connection Points

WATER HEATER CONNECTIONS: MPI MODELS
90-863758060 AUGUST 2006
a
Seawater cooled models
a - Location for hot water supply connection
a
Models with closed cooling
a - Location for hot water supply connection
9257
9256
Cooling System
Page 7A-13