Thrush DSHE Series - Manual (Page 19)

Thrush Co.
Manual #9636-0555
4.3 Initial Startup Procedure (Continued)
1. Assure that all manual shutoff valves on the water and heat sources are closed.
Verify that electricity is off as well.
2. Slowly open the manual shutoff valve or valves on the cold water side of the Hot-
Pak and check for any leaks. Repair any leaks before proceeding. Allow the tank
to fill completely with water. Opening the safety relief valve to vent the air out of
the shell will speed up this process.
3. Open the circulator pump isolation valves. (Figure 4-4)
ISOLATION VALVES
Figure 4-4 Circulator Pump Isolation Valves
4. Turn on the electrical power and place the control panel in the ON position.
5. Open all isolation valves in the condensate line, downstream from the hot water
outlet and then slowly open the steam supply valves.
6. Slowly open the steam supply and create a load or demand situation on the Hot-
Pak of approximately half of the system design and check for any leaks.
7. Using the valve manufacturer’s instructions set the temperature control valve to
produce the desired water temperature. If using an electronic control panel, insert
the provided key into the key switch located on the front of the control panel
labeled FACTORY RESET/AUTOTUNE MODE. Turn the key to the right to
engage Autotune Mode. This feature will automatically set the digital controller
settings to operate the electrically actuated valve. This process may take a few
minutes. Then use the Up/Down arrows on the digital controller to adjust the
temperature set points.