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Unblocking Procedure:
A red light in the LED indicates the circulator rotor is blocked or sticking. Turn the selector to the position MAX, disconnect
and connect power supply to start the automatic release process. The circulator makes 100 attempts to restart (process lasts
approximately 15 minutes). Every restart is signalled by a short flash of white LED light. If the blocking is not removed through
the automatic release process after 100 attempts to restart, the circulator goes into standby and the LED remains solid red.
Perform the manual unblocking steps described below.
1. Disconnect power supply - the warning light switches off.
2. Close both isolating valves and allow cooling. If there are no shut-off devices, drain the system so that the fluid level is
beneath that of the circulator.
3. Loosen 4 motor bolts. Remove motor from casing. Carefully pull the rotor/impeller from the motor.
4. Remove impurities and deposits from the impeller and casing.
5. Reinsert the rotor/impeller into the motor.
6. Set the dial to the MAX position.
7. Connect power supply. Check for impeller rotation.
8. If the circulator still doesn't run it will need to be replaced.
SPEED
Minimum
Medium
Maximum
TACO
VR1816
0015e3
007e
Replacement Parts List
198-213 RP
Casing O-ring
198-214 RP
Wiring plug connector (green)
198-215 RP
Terminal box cover (black)
198-217 RP
Terminal box cover screws (5 per bag)
0010-025 RP
Integral Flow Check (IFC
007-007 RP
Flange gasket set
0018e Pump Cross Reference (Fixed Speed Mode):
TACO
GRUNDFOS
003
-
006
Alpha 15-55 (Low)
007
UP-15-42
008
UPS-15-58 (Low
0015 (Low)
UPS-15-58 (Med)
0015 (Med)
Alpha 15-55 (Med)
UPS-15-58 (Hi)
0015 (Hi)
Alpha 15-55 (Hi)
0018e Pump Cross Reference (Variable Speed Mode):
GRUNDFOS
Alpha 15-55
)
®
WILO
-
Star S-21 (1)
Star S-21 (2)
Star S-21 (3)
WILO
B & G/XYLEM
Stratos Eco
Eco-Auto
B & G/XYLEM
ARMSTRONG
-
Compass (1)
Eco-Vario (Low)
NRF-25 (1)
Astro 230 (1)
NRF-25 (2)
Astro 230 (2)
Eco-Vario (Med)
Compass (2)
NRF-25 (3)
Astro 230 (3)
Eco-Vario (Hi)
Compass (3)
ARMSTRONG
Compass 20-20
7
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