Setting The Timer - Laing Ultracirc S1 Manual De Montaje

Installation and operating instructions:
GB
domestic hot water pumps Ultracirc S1

7.3 Setting the timer

For figure 7.3a:
Carefully open the timer cover with a screwdriver
For figure 7.3b:
Set the current time by turning the setting dial (1) in the direction of the arrow
until the current time matches the marking (). Pull out the tabs (3) for the times
that the pump should run. Set the function selection switch (): ON = pump runs
continuously, OFF = pump is off or TIMER = pump runs according to the program
that is selected by the tabs
7.4 Setting the control thermostat
The control thermostat is located as follows: S1-R versions – near the name-
plate, RU and RW versions – top left in the timer housing. Set the arrow to the
required temperature using a small screwdriver.
8 Maintenance/Disassembly
Pumps are subject to wear. If the pump is blocked or grinding noises are audi-
ble, check the pump and replace it if necessary. Procedure:
!
For figure 8:
WARNING
WARNING
When replacing non-Laing motors, use the additionally included flat seal. The
groove for holding the flat seal in non-Laing pump housings has an additional
ridge that can cause leakage when used with an O-ring seal.
www.laing.de/eng/
- Disconnect pump from the mains.
- Close the connection lines.
- Loosen the union nut and remove the motor (Residual water
may leak out of the rotor cavity. Prevent the electrical con-
nection to the pump from getting wet.).
- Carefully pull the rotor/impeller unit upward by hand.
The rotor is held onto the bearing ball with a "pushbutton ef-
fect" on S1 versions. Do not wedge it out from one side using
a screwdriver since this may destroy the bearing.
- Dispose of any foreign objects and remove impurities/de-
posits with appropriate agents (e.g. use citric acid to remove
lime). Reinsert the rotor/impeller unit.
- The bearing is worn if the rotor/impeller unit cannot move
freely or if wear marks are visible. Replace the rotor, pump
motor, or the entire pump.
and Ecocirc E1
® ®
1