Shut Down Instructions; Safety Features - Ace Heating Solutions Mini-Pack Operating And Maintenance Instruction Manual

16. Check the flange bolt section for leaks. Tighten only enough to stop leakage. Never tighten more
than necessary. Excessive tightening will shorten the life of the gasket and stretch the studs.
Page 8 for proper torque values.

Shut Down Instructions

1. De-energize all electrical power to the Mini-Pack.
2. Close the main upstream steam shut-off valve to the Mini-Pack.
3. Close domestic water inlet and outlet shut-off valves.
4. Allow the unit to cool down. (Approximately 24 hours).

Safety Features

The electric steam control valve is designed to fail safe (closed) in the event of a power failure.
1. The pneumatic steam control valve is designed to fail safe (closed) in the event of a power failure.
2. The single safety solenoid (standard) closes the air line from the Accritem to the actuator upon an
The single safety solenoid (standard) closes the valve upon an over-temp or power failure.
over-temp or power failure. The three-way valve also vents any air left in the actuator, thus
ensuring full shut-off of the control valve.
3. The relief valve is designed to relieve the pressure in the Mini-Pack in the event the pressure gets
too high.
4. The double safety solenoid (Optional feature, figure 3) is
designed to dump the hot domestic water from the shell
in the event that the water temperature exceeds the set
point on the high limit control. This should be piped to a
safe drain per local and state codes.
ACE BOILER INC.
Page 14
See
Figure 3