Schreiber Chillers 1000AC-MRI - Manual (Page 37)

MRI SPECIAL FEATURES
Manual Bypass
This unit has an adjustable 1” water bypass. 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: K08.13
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
Back Flow Kit
This unit has a back flow system. There is a 1 1/2" check valve on the water pump discharge
line and a 1 1/2" (M43V) solenoid valve. When the water pump is off the solenoid valve will
close and the check valve closes you cannot get any back flow to the reservoir, causing it to
overfill. (Please see installation and maintenance instructions).
Kit Number: K08.9P