-20-
15
Refit the drip tray/fascia. Disconnect the gravity drain (if previously fitted) and either block off the pipe or ensure
that the outlet is above the level of the drip tray by placing the pipe up behind the grille.
16
Connect a 12mm (0.5") OD drain tube to the drain connector (Fig. 5), and route together with the refrigeration/chilled
water pipes to a suitable outlet.
NOTE:
Use of a 12mm OD drain tube should reduce the possibility of syphoning, but if the drain outlet is below
the level of the base of the drip tray, syphoning may occur, creating noise on pumping. If this occurs, fit
an air break, e.g., by pumping into a larger diameter pipe than that from the pump, no further than 200mm
below the level of the base of the unit.
17
Refit the grille and filter.
18
TESTING THE PUMP AND CONTROL
a
Connect a suitably fused supply to the unit (refer to the unit installation instructions). Allow approximately one
minute for the controls and sensor to stabilize.
b
Slowly add water to the condensate tray until the pump runs. Initially the pump will be noisy until the air in the
hose has been expelled. It is possible that, on this first cycle, the pump will run dry for a short period (indicated
by noise).
c
Add more water to the tray and the pump will cycle in the normal manner.
d
With the system in cooling mode, continue adding water to the sump until it reaches the higher of the sensor
probes. The cooling cycle will shut down, and the pump continue to run, until the water has dropped below the
level of this probe.
19
Refit the side panels.
NOTE:
Whenever the electrical supply to a unit fitted with a condensate pump and controls is interrupted, a
delay of up to 1 minute will occur before the compressor or the pump will start when the supply is
reinstated
CONDENSATE PUMP WIRING DIAGRAM
Heronhill - for all your Airking requirements
Tel: 01823 665660
www.heronhill.co.uk
Fax: 01823 665807
