22
98-0157 Rev P
LOOP HEATSAN (COOLDOWN AFTER HEAT DISENFECTION OF THE LOOP)
When the Heatsan unit performs a disinfection of the loop, the unit must be cooled down to allow
cold water from the RO to be supplied to the Dialysis machines. By connecting the MediQA to the
Heatsan via the MINT cable, the Heatsan unit can call for a fill from the MediQA when it needs to be
cooled down. When this occurs, the MediQA will position the valves so water is pushed through the
loop to gradually cool the unit. Once this procedure is completed, the MediQA is free to go back into
normal operation. The loop return valve, shown in Figure 23, is positioned to redirect water back to
the Heatsan unit. This keeps the hot water from entering the tank of the MediQA.
Figure 22
Figure 23
Figure 24
Concentrate to Drain Valve
Loop Return Valve
Product to Loop Valve
4.3
Pump Operation
The pump is automated and operates according to a factory installed program. If there are up and
down arrows on the face of the pump, it is advised not to use these to adjust the run percentage.
Pump Models with screen:
If there is a yellow or red light on the pump face, the alarm or warning message should be displayed
with a description and Alarm Code. For additional information, the Alarm Code information can be
found on the Grundfos website,
. The ‘TYPE’ of pump can be determined by
looking at the nameplate on the pump, which is located on the rear of the pump head.
Pump Models with no screen:
If there is a yellow or red light on the pump face, use a Grundfos Dongle to determine the error
message. The Alarm Code description can be found on the Grundfos website,
The ‘TYPE’ of pump can be determined by looking at the nameplate on the pump, which is located
on the rear of the pump head.
See Section 13.2 for instructions on connecting to the pump.
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