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P U M P
OW NER' S
OPE R A TION
MANU AL
Dual Pump Econo Hot Water Re-Circulator
Installation and Operating Instructions
MODEL: CU541
c/w Time Clock
DOC: CU541
C O N T R O L
AUTO
PUMP 1
PUMP 2
MAN
DUAL HOT WATER
CIRCULATOR
MAN
-DANGER-
HIGH VOLTAGE
-DANGER-
DO NOT OPEN COVER
AUTHORISED
HIGH VOLTAGE
PERSONS ONLY
DO NOT OPEN COVER
FPC-SERIES
AUTHORISED
PERSONS ONLY
FPC-SERIES
REV: 1.0
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Summary of Contents for Grundfos CU541
- Page 1 C O N T R O L P U M P OW NER’ S OPE R A TION MANU AL Dual Pump Econo Hot Water Re-Circulator Installation and Operating Instructions MODEL: CU541 c/w Time Clock AUTO PUMP 1 PUMP 2 DUAL HOT WATER CIRCULATOR...
- Page 2 WARNING: All electrical connections must be carried out by a suitably SAFET Y • Prior to Installation, ensure power supply is isolated. • Electrical connection to the panel must be carried out in accordance with ‘Connection Instructions’, shown below CONNECTION PUMP 1 PUMP 2 240 Vac...
- Page 3 SETTING UP TIME CLOCK 1. To start switch, press Reset key 2. To adjust the present time, please press key, then 23:36 press D+, H+, M+ to adjust the Days, Hours and Minutes. AUTO 3. Programming steps as follows: RESET MANUAL Step Programming...
- Page 4 CIRCUIT DIAGRAM 240 Vac Supply Circuit Breaker 16A ‘D’ Curve 2P 240N Earth Active Neutral 240VAC Circuit Pump Breaker 2A Contactor 3P Earth Active Neutral 240VAC Circuit Pump Breaker 2A Contactor 3P Circuit 7 Day Time Clock Breaker 2A Pump 1 Manual Contactor 18A 240Vac Auto Timer Contacts...