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Installation and operating instructions
GB
Ecocirc
(level 7 = the highest power level, level 1 = the lowest power level). A setting
between 3 and 4 should normally suffice. If the temperature differential between
the flow and the return is too large, increase the power; if the temperature dif-
ferential is less than that which is intended, the power can be further reduced.
(Guideline values: underfloor heating: 8–10 K; radiator heating: 15–20 K)
8 Maintenance/Disassembly
Pumps are subject to wear. If the pump is blocked (see section 9) or grinding
noises are audible, check the pump and replace it if necessary. Procedure:
- Disconnect the pump from the mains.
!
- Shut off supply and drain lines. If there are no shut-off devices,
drain the system so that the fluid level is beneath that of the pump.
- Loosen the union nut by hand or with an appropriate tool (such as
a strap wrench) and care fully pull the motor out of the pump housing.
CAUTION
For figure 8:
- Carefully pull the rotor / impeller upward by hand and remove it.
- If needed, remove foreign bodies and impurities/deposits with
- The bearing is worn if the rotor / impeller cannot be freely moved
9 Operating lamps / Overview of faults / Guarantee
Work on electrical parts may only be performed by authorized
!
specialists.
When the electrical connection to the pump is made properly, a green light in
the Ecocirc vario's continuously adjustable power selection switch lights con-
stantly. Faults are indicated as follows:
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vario E4 and E6 heating pumps
®
Residual water may leak out of the rotor cavity. Prevent the
pump's electrical connection from getting wet.
appropriate agents. Reinsert the rotor / impeller.
or if wear marks are visible. In this case, replace the rotor, pump
motor, or the entire pump.
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