Schreiber Engineering 300AC-MRI, Owner'S Manual

Page: 37 / 46

MRI SPECIAL FEATURES
Manual Bypass
This unit has an adjustable water by-pass. It can be adjusted in the field. This feature
cuts down the amount of flow of water coming out of the water pump.
Kit Number: K08.12
:
Discharge Pressure Gauge
There is a water pressure gauge on the water discharge line of the water pump, reading
the water pressure.
Kit Number: k08.19
Pump Upgrade
The standard water pump in this unit has been upgraded to a 2 HP stainless steel
pump.
Part Number: P124-S:
Low Level Warning and Cut-Out
The low level float is mounted in the chiller water reservoir. It is a single float and
installed normally closed (opens at low water.) On models with
electronic control
panels , the chiller ceases operation when a low water situation occurs, a warning light
on the control panel will illuminate. On models with standard controls , a low level
condition illuminates the “low level warning” lamp only. There is no cut-out . Water
must be added immediately or the unit can be severely damaged. For both control
styles,
normal operation will resume when the tank is filled.
Kit Number: K08.23
Top Fill
A 2 “ top fill port has been added to the top of this unit instead of automatic water level control.
This should allow the customer to pour water or other treatment products directly into the chiller.
No Kit Number
Pump Operation Auxiliary Contact
A pressure switch is mounted on case of the pump. This switch will be closed when the pump is
operating. In the event of a pump failure, the switch will open
(The switch is also open when the power is off to the pump.)
Kit Number: K08.34
High Temperature Auxiliary Contact
High Temperature auxiliary contact opens when the temperature exceeds the high temperature
ser point on the control panel.
Kit Number: K08.33