LiqTec, 80-130 V
Installation and operating instructions
Notice d’installation et d’entretien
Instrucciones de instalación y funcionamiento
GRUNDFOS INSTRUCTIONS
LIMITED WARRANTY
Products manufactured by GRUNDFOS PUMPS CORPORATION (Grundfos) are warranted
to the original user only to be free of defects in material and workmanship for a period
of 24 months from date of installation, but not more than 30 months from date of manufacture. Grundfos’ liability under this warranty shall be limited to repairing or replacing
at Grundfos’ option, without charge, F.O.B. Grundfos’ factory or authorized service
station, any product of Grundfos’ manufacture. Grundfos will not be liable for any costs
of removal, installation, transportation, or any other charges which may arise in connection with a warranty claim. Products which are sold but not manufactured by Grundfos
are subject to the warranty provided by the manufacturer of said products and not by
Grundfos’ warranty. Grundfos will not be liable for damage or wear to products caused
by abnormal operating conditions, accident, abuse, misuse, unauthorized alteration or
repair, or if the product was not installed in accordance with Grundfos’ printed installation and operating instructions.
To obtain service under this warranty, the defective product must be returned to the
distributor or dealer of Grundfos’ products from which it was purchased together with
proof of purchase and installation date, failure date, and supporting installation data.
Unless otherwise provided, the distributor or dealer will contact Grundfos or an authorized service station for instructions. Any defective product to be returned to Grundfos
or a service station must be sent freight prepaid; documentation supporting the
warranty claim and/or a Return Material Authorization must be included if so instructed.
GRUNDFOS WILL NOT BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES,
LOSSES, OR EXPENSES ARISING FROM INSTALLATION, USE, OR ANY OTHER CAUSES.
THERE ARE NO EXPRESS OR IMPLIED WARRANTIES, INCLUDING MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE, WHICH EXTEND BEYOND THOSE WARRANTIES
DESCRIBED OR REFERRED TO ABOVE.
Some jurisdictions do not allow the exclusion or limitation of incidental or consequential
damages and some jurisdictions do not allow limit actions on how long implied warranties may last. Therefore, the above limitations or exclusions may not apply to you.
This warranty gives you specific legal rights and you may also have other rights which
vary from jurisdiction to jurisdiction.
3
LiqTec, 80-130 V
Installation and
operating instructions
Page 4
Notice d’installation
et d’entretien
Page 6
Instrucciones de instalación
y funcionamiento
Pág. 9
4
Description
The LiqTec
• protects the pump against dry-running.
• protects the pump against too high liquid temperature 266°F ±9°F (130°C ±5°C).
• can monitor the motor temperature if the PTC sensor in the motor has been connected.
• has a fail-safe design. If the sensor, sensor cable,
electronic unit or power supply fails, the pump
stops immediately.
Mounting the LiqTec sensor
The LiqTec can be fitted to a DIN rail to be incorporated in a control cabinet.
See illustrations on page 12.
Electrical connection
Example of electrical connection, see page 13.
Calibration of sensor and LiqTec
Follow the procedure on the next page.
Functions
1. Connection for dry-running sensor
Service number of dry-running sensor:
96556427.
2. Connection for external restarting.
3. Motor PTC
Green light indicates OK or short-circuited terminals.
Red light indicates too high motor temperature.
The alarm relay is activated
.
4. Connection for PTC sensor
A PTC sensor according to DIN 44 082 can be connected to this terminal.
If the PTC sensor is not used, the terminals must
be short-circuited.
5. Sensor indicator light
Red light indicates defective sensor or cable.
The alarm relay is activated.
6. Deactivation of the dry-running monitoring func-
tion
Press the button to deactivate the dry-running
monitoring function. Red flashing light. The PTC
monitoring function is still active.
Press the Restart button to reactivate the dry-running monitoring function.
7. High liquid temperature indicator light
Red light indicates too high liquid temperature
266°F ±9°F (130°C ±5°C).
The alarm relay is activated.
8. Supply voltage
80-130 V, 50/60 Hz.
9. Dry-running indicator light
Green light indicates OK (liquid in pump).
Red light indicates dry running (no liquid in
pump).
The alarm relay is activated.
10. Alarm/Run relay output
Potential-free changeover contact.
Maximum contact load:
250 V, 1 A, AC (inductive load)
.
11. Auto/Man
Changeover between automatic and manual restarting.
The default setting is Man.
Changeover is carried out by means of a small
screwdriver.
When Auto has been selected, the alarm indication will automatically be reset 10 to 20 seconds
after liquid detection.
12. Restart
Press the button to restart the pump. The button
has no influence on the PTC monitoring.
TM03 0129 4104
1
2
3
4
5
6
7
8
9
10
11
12
5
Calibration of sensor and LiqTec
Further information
Information related to IEC 60 730-1:
•Software class A.
• Pollution degree 2.
•Type 1.
The LiqTec has been cURus approved according to
UL 508.
Maximum pressure: 580 psi (40 bar).
Maximum liquid temperature: +266°F ±9°F
(+130°C ±5°C).
Maximum ambient temperature: +131°F (+55°C).
Power consumption: 5 Watt.
Enclosure class: IP X0.
Maximum cable length: 65.6 feet (20 m).
Standard cable: 16.4 feet (5 m).
Extension cable: 49.2 feet (15 m).
Product number: 96443676.
Disposal
Disposal of this product or parts of it must be carried
out according to the following guidelines:
1. Use the local public or private waste collection service.
2. In case such waste collection service does not exist
or cannot handle the materials used in the product, please deliver the product or any hazardous
materials from it to your nearest Grundfos company or service workshop.
Step Action Result
1
Check that the sensor is correctly connected to the LiqTec,
see page 13.
2
Before fitting the sensor in the pump, submerge the sensor into stagnant water. Any kind of container with water
can be used.
Note: It is important that the water is stagnant as the
calibration will be misleading if the sensor is cooled by
flowing water.
3
Keep the buttons, pos. 6 and 12, pressed for approx.
20 seconds.
All red indicator lights (except pos. 7)
start flashing.
4
When the green indicator lights, pos. 3 and 9, are constantly on, stop pressing the buttons, pos. 6 and 12.
The calibration is completed.
Subject to alterations.
12
TM03 0092 4004
n
TM02 2175 3801
o
TM02 2176 3801
p
TM03 0093 4004
q
TM03 0094 4004
r
TM03 0095 4004
s
TM03 0096 4004
t
TM03 0097 4004
u
TM02 2182 3801
OFF ON
OFF ON
13
TM03 0130 4104
Sensor
3
M
K1
T+
T+
T+
K1
N
L3
L2
L1
Brown/Black
Blue
White
External
restart
U.S.A.
GRUNDFOS Pumps Corporation
17100 West 118th Terrace
Olathe, Kansas 66061
Phone: +1-913-227-3400
Telefax: +1-913-227-3500
Canada
GRUNDFOS Canada Inc.
2941 Brighton Road
Oakville, Ontario
L6H 6C9
Phone: +1-905 829 9533
Telefax: +1-905 829 9512
Mexico
Bombas GRUNDFOS de Mexico
S.A. de C.V.
Boulevard TLC No. 15
Parque Industrial Stiva
Aeropuerto
Apodaca, N.L. 66600
Mexico
Phone: +52-81-8144 4000
Telefax: +52-81-8144 4010
Addresses revised 18.04.2002
Being responsible is our foundation
Thinking ahead makes it possible
Innovation is the essence
www.grundfos.com
96562443 0105
61
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