GRUNDFOS COMFORT 10-16 Temp, Auto and Digital Timer Installation Guide

GRUNDFOS COMFORT 10-16 Temp, Auto and Digital Timer Installation Guide

1. 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 36 months from the date code listed on the nameplate of the pump. 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 that 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 and accepted codes of good practice. The warranty does not cover normal wear and tear. 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 limitations 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. Products which are repaired or replaced by Grundfos or authorized service center under the provisions of these limited warranty terms will continue to be covered by Grundfos warranty only through the remainder of the original warranty period set forth by the original purchase date.

2. General information

2.1 Hazard statements
The symbols and hazard statements below may appear in Grundfos installation and operating instructions, safety instructions and service instructions.

The hazard statements are structured in the following way:

2.2 Notes
The symbols and notes below may appear in Grundfos installation and operating instructions, safety instructions and service instructions.

2.3 Pumped liquids
The product is suitable for domestic hot water with unrestricted water hardness.
The kinematic viscosity of water is 1 mm2/s (1 cSt) at 68 °F (20 °C). If the pump is used for a liquid with a higher viscosity, the hydraulic performance of the pump will be reduced.

Example: 50 % glycol at 68 °F (20 °C) means a viscosity of approximately 10 mm2/s (10 cSt), reducing pump performance by approximately 15 %.
When selecting a pump, the viscosity of the pumped liquid must be taken into account.

3. Receiving the product

3.1 Inspecting the product

CAUTION
Crushing of feet
Minor or moderate personal injury
‐ Wear safety shoes when handling the product.

• Make sure that the delivered product corresponds to the order.
• Make sure that the supply voltage and frequency correspond to the values stated on the product nameplate.

4. Mechanical installation

4.1 Applications
COMFORT pumps are designed for use in domestic hot-water systems.
The pumps are suitable for open and closed systems.

4.2 Location
The pump is designed for indoor use in a non-aggressive and non-explosive atmosphere.
Relative air humidity: Maximum 95 %.

4.3 Preparing the product for installation
The product has integrated power cable, check valves and isolating valves.
Before installing the product, observe the following:
• Flush the system of debris before installation.
• Refer to the arrows on the pump housing indicating the direction of the liquid flow through the pump.

4.4 Mounting the product

4.5 Installing the temperature sensor
The following only applies to the AUTO pump variants: The attached temperature sensor must be installed in the system in order to use the AUTOADAPT function.

Do as follows:
1. Turn the faceplate counterclockwise on the pump, to release the sensor cable.
2. Pull out the sensor cable to the desired length. Do not pull the cable downwards.

The maximum cable length is 8 ft (2.5 m).

4.6 Changing the pump head position

To change the orientation of the pump head, do as follows:

5. Startup

5.1 COMFORT Auto

To change the control mode on the pump, press the button on the operating panel. Press the button more times to change between the three available control modes:

• AUTOADAPT
This mode adapts the operating hours by switching on and off according to the tapping pattern of the users as detected by the sensors attached to the hot- water outlet.
• 100 % mode
The pump is running continuously at full speed.

• Temperature control
The operating range of the pump is kept within a predetermined temperature range.
When a control mode is chosen, the corresponding LED is lit. If the LED flashes, the pump is in standby. The sensor must be installed regardless of what control mode the pump will run in.

5.2 COMFORT Temperature control

To change control mode on the pump, press the button on the operating panel.
Keep pressing the button to change between the two available control modes:

• Temperature control
The operating range of the pump is kept within a predetermined
temperature range.
• Continuous 100 % mode
The pump is running continuously at full speed.

When a control mode is chosen, the corresponding LED is lit. If the LED flashes in temperature control mode, the pump is in standby.

5.3 COMFORT Digital Timer
5.3.1 Operating panel

5.3.2 Setting the pump to continuous 100 % mode
The pump is factory set to run at continuous 100 % mode.
1. When the pump is powered on the 100 % LED is lit.

5.3.3 Setting the actual time
1. Press the Arrow button to start the process. The gear wheel LED lights up.
2. Move the actual timer LED by pressing the Change button until it indicates the actual time.
One LED equals a time interval of 30 minutes.
3. Confirm by pressing OK.

5.3.4 Setting the timer
Once the actual time has been set the pump’s timer LEDs become lit according to the default timer settings. They are as follows:
• 6-9 AM (06:00-09:00)
• 11 AM – 1 PM (11:00-13:00)
• 4-9 PM (16:00-21:00)

If you want to keep the default settings press the Arrow button to confirm.
If you want to customize the timer, do as follows:

1. Press the Arrow button.
2. Move the timer LED by pressing the Change button.
3. Select or deselect a time period by pressing OK.
One LED equals a time interval of 30 minutes.
4. Press the Arrow button to confirm the settings.

5.3.5 Resetting to factory setting
When resetting the timer, all saved time periods will be lost.
1. Press and hold the Arrow button for 5 seconds.
All LEDs light up, after which the actual time LED blinks and the 100 % LED is lit.

6. Service and dismantle the product

7. Fault finding the product

7.1 Defective external temperature sensor (only COMFORT Auto)
The red error LED indicator is turned on during AUTO ADAPT and turns off when the pump is switched manually to temperature control mode.

8. Technical data

1. The ambient temperature must always be lower than the liquid temperature to minimize condensation in the stator housing, and not exceed 104 °F (40 °C).

9. Disposing of the product

1. Use the public or private waste collection service.
2. If this is not possible, contact the nearest Grundfos company or service workshop. See also end-of-life information at www.grundfos.com/productrecycling.
3. Consider recycling scrap metal to reduce waste and to help to limit new mining.

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U.S.A.
Global Headquarters for WU
856 Koomey Road
Brookshire, Texas 77423 USA
Phone: +1-630-236-5500

GRUNDFOS CBS Inc.
902 Koomey Road
Brookshire, TX 77423 USA
Phone: 281-994-2700
Toll Free: 1-800-955-5847
Fax: 1-800-945-4777

GRUNDFOS Pumps Corporation
9300 Loiret Boulevard
Lenexa, Kansas 66219 USA
Tel.: +1 913 227 3400
Fax: +1 913 227 3500

Canada
GRUNDFOS Canada inc.
2941 Brighton Road
Oakville, Ontario
L6H 6C9
Tel.: +1-905 829 9533
Fax: +1-905 829 9512

Mexico
Bombas GRUNDFOS de México
S.A. de C.V.
Boulevard TLC No. 15
Parque industrial Stiva Aeropuerto
Apodaca, N.L. 66600
Tel.: +52-81-8144 4000
Fax: +52-81-8144 4010

Revision Info
Last revised on 04-2021

www.grundfos.com

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