41
6.5
Pump Start-up - Wilo PWM Pump
The Wilo Pulse-width modulation (PWM) pump features dry running protection to eliminate
burn out and provides compliance with the 2015 pump efficiency regulations.
Description of the pump
The pump consists of a hydraulic system, a
glandless pump motor with a permanent magnet
rotor, and an electronic control module with an
integrated frequency converter. The control
module provides speed control by a PWM signal
from the ModuSat control board and indicator
LED to display the pump operating status
During automatic venting function, after the initial
first start-up of the unit, the Pump runs alternately
with high and low speeds to help remove any air
from the pump. The pump should be left to carry
out this process and once complete the pump will
switch automatically to a pre-set speed.
Filling and venting
The venting function lasts 10 minutes and is indicated with quick green LED blinking.
Noises may be heard while the venting function is running. After 10 minutes, the pump
stops and goes automatically in to the pre-set function.
Please note:
When the unit is switched over to heating mode please note that the pump
will run for 2 mins prior to the heating PICV opening , this is not a fault in the unit but a
normal control function as the HIU asses the current heating circuit flow temperature.
Содержание ModuSat TP 40-10
Страница 5: ...5 ModuSat TP Top Connections...