Honeywell Precision Platform 4022 Series System Manual page 71

Installation
p/n 6510020208
3. Run 12.7mm (1/2-inch) hose from the mill water supply and attach
it to the mill water supply in and out connections on the exchanger
unit.
4. Connect 220 VAC power to the plug, or connect it directly to the
junction box in the exchanger unit. This must be a separate circuit
from the scanner power.
5. Lift the hinged reservoir lid and fill the expansion tank with 1/4-
gallon (1 liter) of Prestone coolant and 8 liters (2 gallons) of clean
water.
6. Turn on the mill water, then turn the exchanger unit ON/OFF
switch to ON.
7. Add water to the expansion tank, as necessary, to bring the water
level up to three-quarters full. Add water after the scanner has been
turned on, the heads have heated, and the temperature control
solenoid has opened such that the hoses are filled with coolant and
purged of air. Recheck the coolant level hourly until the level has
stabilized.
8. Adjust the coolant-out pressure to 50 psi ±5 psi (3.5 bar).
10/4/07
Connecting external coolant fluid
3-15