McQuay MDS080B R Installation Manual page 14

Water
leakage
【 Note 】 This series product need connect a MEX box out of the machine, please refer to page 7 of this manual;
6.2.6 Installation of condensing water pump
● To check the accessories are ready
● Install the anti-vibrating mounting bracket and the pump
The bracket' figure is as following:
Fix the bracket, there is a groove in the side of the pump, hitch the pump onto the bracket. Make sure the pump set steady and
vertical;
● Water level and the state of the pump
According the water level detected by the pump self, the pump determine its work state, as following:
When the detected level is higher then 18mm, the pump start run; When the detected level is higher then 21mm, the pump send an
alarm signal to the controller of the indoor unit, and the pump continue pumping; When the detected level is lower then 12mm, the pump
stop run;
To reduce the water amount in the water plate of the indoor unit, the pump's inlet should be lower then the drainage of the indoor unit,
as following, recommend :2mm ≤ h ≤ 6mm ;
● Wire connecting
a) Connect power supply cable to the pump;
b) Connect pump Live, Neutral and Earth terminals to the mains power supply;
c) The pump must be still powered when the indoor unit is off;
d) Connect the alarm wire to the indoor unit's controller;
Water
leakage
End
Water
dipped
leakage
into water
Drain
indoor outdoor
side side
Alarm
Run
Stop
©2005 McQuay International
13