HDF - Heavy Duty Flush

Heavy Duty Flush Lab Analysis Worksheet Download

 

Heavy Duty Flush Procedures

STEP 1.       

Drain Coolant

Install 1” ball valves

Fill with 1st HDF - HD Flush (Ready To Use) and run 5-7 days

                 

STEP 2.       

Shutdown

Power wash out Surge/Day Tank with STH - Surge Tank Hose while still hot and full. Let particles overflow. (15-20 minutes)

Drain Flush

Fill with 2nd HDF - HD Flush (Ready To Use) and run 5-7 days

                 

STEP 3.       

Shutdown

Power wash out Surge/Day Tank with STH - Surge Tank Hose while still hot and full. Let particles overflow. (15-20 minutes)

Drain Flush

*If Rust Is Present

*Fill with RRF - Rust Removal  Flush and run 1-2 hours at temp.

*Drain Flush (save for re-use)

Fill with water until overflow from Surge/Day Tank.

Run Unit until up to temperature and thermostats open.

Continue to pump in water until overflow at the top from Surge/Day Tank before opening ball valves. (2 x volume) overflow until clean.

(Best Practice)

Fill with coolant mix and 3%  CRI – Corrosion Rust Inhibitor