KELCO C15 Series Wiring diagram

INSTALLING AND OPERATING THE KELCO
C15 SERIES FLOW SWITCH
Please read these installation and operating instructions fully and carefully before installing or servicing this Flow Switch. The C15 series
flow switch is a mains voltage device. Death or serious injury may result if this switch is not correctly installed and operated. All
electrical work on this switch must be performed by a fully qualified and licensed Electrician.
WARNING
INSTALLATION
The C15 inline flow switch can be installed in any location in
vertical or horizontal pipes. In vertical pipes flow can be either
upward or downward through the switch. Where possible,
install a union on the inlet and outlet of the flow switch to
allow easy removal for cleaning and servicing. Ensure the flow
switch is oriented correctly to direction of flow. The male
threaded end of the switch is the inlet. When installing, make
sure no thread tape or other foreign matter from the
installation becomes entrained in the switch. Also ensure no
foreign matter can enter the flow switch from tanks or
pipework. Where scale or other material may be present
always install a Y-strainer in the inlet pipe directly before the
switch. The electrical module that saddles the flow switch
body can be removed if required to allow the body of the
switch to be screwed into tight locations, for example into the
discharge port of a pump. To remove the electrical module
undo the 4 self-tapping screws that secure the two halves of
the module together.
CHECK VALVES
Many applications will benefit from a non-return valve in the
pipework directly before the C15 inline flow switch. The flow
switch is not designed to operate as a one-way valve and
rapid or high pressure flow reversal, such as water hammer
can damage the piston in the flow switch. A simple non-return
valve adjacent to the flow switch will reduce the possibility of
damage to the flow switch due to flow reversal.
ENVIRONMENTAL LIMITATIONS
This flow switch is suitable for use with hot or cold liquids up
to 90ºC. Systems can be steam sterilized at 100ºC for short
periods without damaging the switch. Note that the
continuous switched power of the C15-R model must be
linearly reduced at elevated temperatures. See the notes on
electrical data below.
REFITTING ELECTRICAL MODULES
The electrical module of the C15 inline flow switch can be
oriented to suit the application. It can be mounted in either
direction on the switch body and can be rotated around the
switch body to any required position. All modules are normally
off switches that turn on in response to flow. Reversing the
orientation of the electrical module does not reverse the
action of the switch. To refit a module to the switch body, fit
and tighten the 4 stainless self-tapping screws. Do not place
any material such as grease, glue or packing material between
the electrical module and the switch body, to do so may alter
the heat flow characteristics of the switch and possibly lead
to overheating or premature failure.
FLOW SENSITIVITY AND PISTON INSTALLATION
Switching point and sensitivity to flow depends on the orientation of the switch, liquid velocity, viscosity and piston clearance.
To give users as wide a choice as possible, a non-magnetic piston retainer is supplied with the C15 flow switch. With the
switch mounted vertically and with flow passing upward through the switch, the non-magnetic piston retainer reduces the
switch on flow rate by a factor of 2. That is, it makes the switch approximately twice as sensitive to flow.
Standard switch (as supplied) installed
horizontally or vertically, with the magnetic piston
retainer fitted.
Switch installed vertically with flow passing
upwards through the switch body, and with the
non-magnetic piston retainer fitted.
Switching point on a
slowly increasing flow
Switching point on a
slowly decreasing flow
0.35 Litres per Minute 0.30 Litres per Minute
Switching point on a
slowly increasing flow
Switching point on a
slowly decreasing flow
0.15 Litres per Minute 0.10 Litres per Minute
Note : Maximum recommended flow rate through the C15 flow switch is 30 Litres per Minute
Note: The data shown in the table above refers to water at ambient temperature as the test medium. Increasing fluid viscosity will
decrease the switch on points. Decreasing the fluid viscosity will proportionally increase the switch on points.

After installing or servicing this flow switch always replace its lid and fully tighten its lid screw. Also ensure the cable
gland is fully tightened. Never leave the lid off the switch for extended periods. Without its lid in place this flow switch is
not water resistant and presents a potential shock hazard. Take great care not to splash water onto the inside of the flow
switch’s electrical housing when the lid is not in place. Without its lid the flow switch is not weather or insect proof and
presents a potential shock hazard that may result in death or serious injury.
WARNING
All electrical work associated with the C15 inline flow switch must be carried out by qualified electrical personnel and all
electrical work must conform to AS/NZ (or equivalent) standards and to local wiring rules.
WARNING
The C15 flow switch is available with one of two switching modules. There is an identification number inside the lid of each
module that indicates the type. The modules are numbered “B” or “R”. The electrical specifications of both models are detailed
in the following table.
ELECTRICAL DATA
C15-B
C15-R
Model Code Description
C15-B-D
Dry Reed Switch S.P.S.T N.O 40 Watt 240VAC / 200VDC 1Amp Max. Suitable for PLC, telemetry and logic circuits.
Diesel-suited Dry Reed Switch S.P.S.T. N.O 40 Watt. 240VAC / 200VDC. 1Amp Max. Suitable for PLC,
telemetry and logic circuits.
Solid State relay S.P.S.T. N.O 3kW 5-250VAC 10mA Min. 40Amps Max. Suitable for inductive loads.
Note: The switched power of the C15-R inline flow switch module given above refers to a switch operating in a water pipe
system at ambient temperature. In hot water applications the switched power must be proportionally reduced to avoid
overheating the Triac. At the top operating temperature of 90ºC the switched power must not exceed 375 Watts. The C15-B
flow switch modules do not require de-rating at elevated temperatures.
Kelco Engineering Pty Ltd ABN 20 002 834 844
Head Office & Factory
9/9 Powells Road,
Brookvale 2100 NSW Australia
Postal Address
PO Box 7485 Warringah Mall
Brookvale 2100 NSW Australia
Phone: [phone]
Fax: [phone]
Email: [email protected]
Web: www.Kelco.com.au
PLEASE NOTE: Kelco Engineering Pty Ltd reserves the right to change the specification of this product without notice. Users will use their own judgment to determine the appropriateness of using Kelco Products in an application, any safety measures required and that the product is properly installed for that application .
To the extent permitted by law Kelco Engineering Pty Ltd disclaims and excludes all and any liability for the use of this product in any particular application or for defective installation. Kelco switches are warranted against malfunction by a 12 month return to base manufacturer’s warranty. Full details of our warranty and
limitation of liability can be found in this document or downloaded from: http://www.kelco.com.au/warranty
All rights reserved copyright Kelco Engineering Pty Ltd © 2022

a.
b.
This Warranty and Limitation of Liability (or any more recent version in effect when you purchase a Kelco Product) ("Warranty”) applies to all Kelco Products
regardless of where you purchased the Kelco Products.
When you place an order, you are deemed to agree to the Warranty, unless otherwise agreed in writing with Kelco.
Kelco is located at 9/9 Powells Road, Brookvale, NSW 2100, AUSTRALIA and may be contacted by calling 61 2 99056425 or emailing:
[e-mail]
1. Definition
The following terms used herein are defined as follows:
(1) Australian Consumer Law or ACL: Schedule 2 to the Competition and Consumer Act 2010 (Cth).
(2) Brochures and Technical data sheets: Kelco brochures, including, without limitation, sales brochures and technical data sheets, whether or not
provided electronically.
(3) Customer Application: Any application of Kelco Products or component parts by a you including, but not limited to, embedding and/or using Kelco
Products in your parts/components, electronic substrates, devices, equipment and /or systems manufactured by customers.
(4) Non- Excludable Guarantee: a Consumer Guarantee applicable to these Warranty Terms under the Australian Consumer Law or New Zealand
Consumer Guarantee Act 1993.
(5) Fitness: (a) fitness for a particular purpose, (b) performance, (c) compliance with laws and regulations and (d) conformity to standards of a Kelco
Product.
(6) Kelco Products: flow switches, level switches and float switches, related products and electronic/mechanical components under the Kelco brand.
(7) ‘You’ or “Customer” means the purchaser of the Kelco Products not having purchased the Kelco Products for re-sale, and ‘your’ has a corresponding
meaning.
(8) Usage Conditions: Usage conditions, rating, performance, operating environment, handling instructions, warnings, restrictions on use, etc. of Kelco
Products described in the Brochures and technical data sheets.
2. Descriptions
You are deemed to accept the following terms and conditions regarding the descriptions provided of Kelco Products in the Brochures and technical data
sheets when you adopt or use a Kelco Product or component thereof.
(1) Rated values and performance values are based on average performance established from batch production runs and Kelco does NOT warrant any
rated values and performance values for multiple composite conditions.
(2) Reference data is provided for your reference only. Kelco does NOT warrant that Kelco Products work properly at all times or continuously as
provided in the reference data.
(3) Application examples ( if any) are provided for your reference only. Kelco does NOT warrant the Fitness of Kelco Products under such applications.
(4) Kelco may discontinue the production of Kelco Products or change their specifications for the purpose of improving such products or for other
reasons entirely at its own discretion and is under no obligation to notify you of any such change.
3. Precautions
You are deemed to accept the following terms and conditions when you purchase Kelco Products:
(1) You will use Kelco Products in compliance with Usage Conditions including rating and performance.
(2) You will confirm Fitness and use your own judgment to determine the appropriateness of using of Kelco Products in a Customer Application. Kelco
products are unlike conventional flow and level switches and pump controllers in that they can be applied to virtually any fluid or pumping system in any
manner defined by an original equipment manufacturer, a wholesaler or end user or their agents. The knowledge and experience of such parties is
outside the control of Kelco, and their having relevant knowledge and experience is critical to the successful application and operation of the Kelco
Products. Kelco does NOT warrant the Fitness of Kelco Products in a Customer Application.
(3) You will confirm that Kelco Products are properly wired and installed for their intended use in your overall system. In the case of Kelco pump
controllers, the flexibility of their operating system means it requires an extensive knowledge of pumps and their characteristics and the intended overall
goal of the system in order to select the correct functions and settings. Failure to understand the ramifications of incorrect settings may result in a
system that fails to perform to your expectations and or may even damage the pump or system itself. It is therefore critical that correct settings are used
to achieve a stable and reliable overall system and to provide any such system with appropriate pressure and or flow protection the pump controller is
intended to provide. Kelco does NOT warrant Kelco Products against defective installation, incorrect programming, incorrect wiring or
electrical overload in any form.
(4) When using Kelco Products, you will make sure to (i) maintain a margin of safety in relation to the published rated and performance values, (ii)
design to minimize risks to any Customer Application in case of failure of any Kelco Products, such as introducing redundancy i.e. critical systems
should include double redundancy of all controls, (iii) adopt system-wide safety measures to notify risks to users such as independent backup
protection. Such backup may consist of a simple or complex independent alarm system to alert an operator to any issue with the system, and (iv)
conduct regular maintenance on Kelco Products and the Customer Application.
(5) It will be your sole responsibility as user to determine and use adequate measures and checkpoints to satisfy your particular requirements for (i)
data input and output, (ii) maintaining a means for reconstruction of lost data, (iv) preventing Kelco Products installed thereon from being infected with
computer viruses and (v) protecting Kelco Products from unauthorized access. Kelco shall not be responsible and/or liable for any loss, damage,
or expenses directly or indirectly resulting from any third-party software or hardware not contained in the product as originally configured by
the manufacturer, the infection of Kelco products, or any computer equipment, computer programs, networks, databases or other proprietary
material connected thereto, by service attack, computer viruses, other technologically harmful material and/or unauthorized access.
(6) Kelco Products are designed and manufactured as general-purpose products for use in general industrial products. They are not intended to be used
in the applications described in subsection 3...(5)(a), (b), and (c). If you are using Kelco Products in the applications described below, Kelco does not
provide any warranty for such Kelco Products, except for specific applications where Kelco has specified that it intends to provide a
warranty or by separate written agreement between the customer and Kelco.
Applications with stringent safety requirements and applications that could cause physical injury to a person or result in loss of life.
Applications under severe conditions or in severe environment, including but not limited to outdoor equipment, equipment exposed to chemical
contamination, equipment exposed to electromagnetic interference and equipment exposed to vibration and shocks.
Thank you for purchasing Kelco Engineering Pty Ltd, (ABN 200 002 834 844) ("Kelco") products (Kelco Products). This document sets out
the terms and conditions of the product warranty and Limitation of Liability for Kelco Products. It is an important document. Please keep
it with your proof of purchase documents in a safe place for future reference should you need to lodge a claim.
Warranty and Limitation of Liability

c.
d.
a.
a.
b.
c.
d.
e.
f.
g.
h.
i.
Customers of Kelco Products shall comply with all applicable laws and regulations of Australia and/or other relevant countries with regard to security
export/import control, when exporting/importing Kelco Products and/or technical documents or providing such products and/or documents to a non-
resident of Australia. At its discretion Kelco may not provide customers with Kelco Products and/or technical documents should they fail to comply with
such laws and regulations.
Applications under conditions or environments not described in any of the Brochures and Technical data sheets.
Kelco Products are not intended for use in Hydrocarbons other than Dieseline.
4. Warranty
Kelco warrants that Kelco Products will perform in accordance with the specifications set out in the Technical data sheets, subject to and in accordance
with the following:
(1) Warranty period: The Warranty shall apply for 12 months from the date of original purchase of Kelco Products by the customer. .
(2) Sole Remedy: Unless required to do otherwise as a result of statutory guarantees applicable under ACL, Kelco will provide, at its own discretion,
either of the following two services as the sole remedy for a malfunctioning Kelco Product:
Repair of the malfunctioning Kelco Product(s) or components by Kelco or Kelco authorised dealer at no charge to the customer, or
Replacement of the malfunctioning Kelco Product(s) or components by Kelco or Kelco authorised dealer with the same number of
replacement/alternative products or components at no charge to the customer.
(3) Exceptions: This Warranty of Kelco Products does not apply if the cause of the malfunction falls under any of the following:
Usage in a manner other than the original intended use for the Kelco Products or component thereof.
Usage other than as described in the Usage Conditions.
Usage that is not in accordance with Section 2 (Descriptions) and Section 3 (Precautions) above.
Modification or repair made to the Kelco Products by persons other than Kelco.
Causes which could not have been foreseen with the level of science and technology at the time of shipping from Kelco.
Replacement or repair of any (1) consumables (including cables, paddles and circuit boards), or (2) lost parts or accessories.
Service of any product whilst it is outside Australia.
Causes originating from other than Kelco or Kelco Products (including force majeure such as but not limited to natural disasters)
Causes from any environmental factors. Such factors may include but are not limited to water or chemical ingress, fire damage, lightning damage,
mechanical damage, sun damage or degradation, failure due to over-heating, freezing or vibration. Failure due to customers over tightening threads or
fittings. Failure due to power supply fluctuations, surges, spikes, brown outs. or AC supplies that do not provide a pure sine wave output.
(4) If you intend to make a claim under this Warranty you must contact Kelco to register your claim by telephone on [phone] and provide the
following details to enable Kelco to assess the claim: (i) proof of purchase; (ii) evidence of the particulars of the claim that gives rise to the application of
the Warranty ; (iii) confirmation that the cause of the malfunction was not an Exception set out above; and (iv) your phone number, email and address
details.
You must provide or make the Kelco product available to Kelco for evaluation. If you are required to return the product to Kelco for repair replacement or
evaluation, Kelco will provide delivery details and a return goods authorisation number to you. The Kelco Products will be at the owner's risk whilst in
transit to and from Kelco, unless transported by Kelco or its authorised representatives.
The Kelco Product presented for repair may be replaced by refurbished products of the same type rather than being repaired. Refurbished
parts may be used to repair the product.
To the extent permitted by law replacement of the product or a part does not extend or restart the Warranty Term.
5. Non-excludable Statutory Guarantees
(1) The Warranty is given by Kelco in addition to other rights and remedies which you may be entitled to under by law, nothing contained in this
agreement excludes, restricts or modifies any condition, guarantee, warranty or other obligation which is applicable to or is conferred on Kelco pursuant
to law where to exclude, restrict or modify any such condition, warranty or other obligation is unlawful. (2) Australia: To the extent that you are a
consumer for the purposes of the ACL, Kelco Products come with guarantees that cannot be excluded under the ACL. You are entitled to a replacement
or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or
replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure. “Acceptable Quality” and “major failure” have the
meaning they have in the ACL. (3) New Zealand: For Kelco Products provided by Kelco in New Zealand, the Kelco Products come with a guarantee by
Kelco pursuant to the provisions of the Consumer Guarantees Act, section 345(1)(i) of the Contract and Commercial Law Act 2017 and the Fair Trading
Act. Where the Kelco Product was purchased in New Zealand for commercial purposes the Consumer Guarantee Act does not apply.
6. Disclaimer and Limitation of Liability
TO THE EXTENT PERMITTED BY APPLICABLE LAW:
(1) SELLER MAKES NO WARRANTY, EXPRESS OR IMPLIED, OTHER THAN AS STATED IN SECTION 4 ABOVE AND SELLER DISCLAIMS AND
EXCLUDES ANY WARRANTY OF ANY OTHER KIND. (2) THE SOLE AND EXCLUSIVE REMEDY FOR MALFUNCTIONING KELCO PRODUCTS
SHALL BE AS SET FORTH IN SECTION 4. ABOVE. (3) KELCO AND THE DISTRIBUTORS OF KELCO PRODUCTS ARE NOT LIABLE FOR ANY
DAMAGES WHICH MAY ARISE FROM OR BE RELATED TO KELCO PRODUCTS.
7. Confidentiality: You accept that if you make a Warranty claim, Kelco and its agents may exchange information in relation to you to enable Kelco to
meet its obligations under this Warranty.
8. Export/ Import Controls
Kelco may seek reimbursement of any costs incurred by them when the Kelco product is found to be in good working order.
Kelco Engineering Pty Ltd ABN 20 002 834 844
Head Office & Factory
9/9 Powells Road,
Brookvale 2100 NSW Australia
Postal Address
PO Box 7485 Warringah Mall
Brookvale 2100 NSW Australia
Phone: [phone]
Fax: [phone]
Email: [email protected]
Web: www.Kelco.com.au
PLEASE NOTE: Kelco Engineering Pty Ltd reserves the right to change the specification of this product without notice. Users will use their own judgment to determine the appropriateness of using Kelco Products in an application, any safety measures required and that the product is properly installed for that application .
To the extent permitted by law Kelco Engineering Pty Ltd disclaims and excludes all and any liability for the use of this product in any particular application or for defective installation. Kelco switches are warranted against malfunction by a 12 month return to base manufacturer’s warranty. Full details of our warranty and
limitation of liability can be found in this document or downloaded from: http://www.kelco.com.au/warranty
All rights reserved copyright Kelco Engineering Pty Ltd © 2022