System Coolant
•
The system coolant does not require winterization.
•
The system coolant can be tested for its freeze
protection value.
Domestic Water System
•
The domestic water circuit needs to be drained or protected
using RV winterizing fluid.
•
Draining is accomplished by opening the low point drains and
blowing air through the water system. Please refer to the RV’s
owners manual for the procedure.
•
Propylene-glycol can be pumped through the system using the
domestic water pump and opening both hot and cold valves
at a plumbing fixture. Using this procedure does not require
draining the Demand Hot Water exchanger.
Winterization
