ACE BOILER INC.
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take the necessary precautions to avoid contact.
Return the temperature dial to the desired set
point.
15 Observe the entire system over a period of variable loads to determine if any calibration is
necessary on the Accritem temperature controller. The sensitivity of this controller is adjusted by
turning the restriction screw.
16 After start-up, inspect the strainer for any dirt, scale, welding particles or debris that may have
accumulated and remove as necessary;
any debris can damage the valve seat or obstruct it from
full shut-off, resulting in possible over-temp conditions and/or scalding.
17 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.
Safety Features
1 The pneumatic hot water 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
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 system in the event the pressure gets
too high.
4 The double safety solenoid 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.
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