Grundfos COMFORT 10-16 Temperature control User manual

COMFORT 10-16
Temp, Auto and Digital Timer
Installation and operating instructions
GRUNDFOS INSTRUCTIONS

English (US) Installation and operating instructions
Original installation and operating instructions
Table of contents
1. Limited warranty............................. 3
2. General information ........................... 4
2.1 Hazard statements ............................ 4
2.2 Notes ................................... 5
2.3 Pumped liquids .............................. 6
3. Receiving the product.......................... 6
3.1 Inspecting the product .......................... 6
4. Mechanical installation ......................... 7
4.1 Applications ................................ 7
4.2 Location .................................. 7
4.3 Preparing the product for installation ................... 8
4.4 Mounting the product ........................... 9
4.5 Installing the temperature sensor.....................11
4.6 Changing the pump head position ....................12
5. Startup ..................................13
5.1 COMFORT Auto variants .........................14
5.2 COMFORT Temperature control variants ................15
5.3 COMFORT Digital Timer variants ....................16
6. Service and dismantle the product ..................19
7. Fault finding the product ........................21
7.1 Defective external temperature sensor(only COMFORT Auto) .....21
7.2 Defective internal temperature sensor ..................21
7.3 Actual time LED is blinking (only COMFORT DT) ............21
7.4 No instant hot water............................21
7.5 No instant hot water............................22
8. Technical data ..............................23
9. Disposing of the product ........................23
2
English (US)

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 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 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.
3
English (US)

2. General information
This appliance can be used by children aged from 8 years and
above and persons with reduced physical, sensory or mental
capabilities or lack of experience and knowledge if they have been
given supervision or instruction concerning use of the appliance in a
safe way and understand the hazards involved.
Children shall not play with the appliance. Cleaning and user
maintenance shall not be made by children without supervision.
Read this document before you install the product. Installation and
operation must comply with local regulations and accepted codes of
good practice.
2.1 Hazard statements
The symbols and hazard statements below may appear in Grundfos installation
and operating instructions, safety instructions and service instructions.
DANGER
Indicates a hazardous situation which, if not avoided, will result in
death or serious personal injury.
WARNING
Indicates a hazardous situation which, if not avoided, could result in
death or serious personal injury.
CAUTION
Indicates a hazardous situation which, if not avoided, could result in
minor or moderate personal injury.
The hazard statements are structured in the following way:
SIGNAL WORD
Description of the hazard
Consequence of ignoring the warning
• Action to avoid the hazard.
4
English (US)

2.2 Notes
The symbols and notes below may appear in Grundfos installation and
operating instructions, safety instructions and service instructions.
FM
Observe these instructions for explosion-proof products.
A blue or gray circle with a white graphical symbol indicates that an
action must be taken.
A red or gray circle with a diagonal bar, possibly with a black
graphical symbol, indicates that an action must not be taken or must
be stopped.
If these instructions are not observed, it may result in malfunction or
damage to the equipment.
Tips and advice that make the work easier.
5
English (US)

2.3 Pumped liquids
The product is suitable for pumping clean, thin, non-aggressive and non-
explosive liquids without solid particles or fibers. It can be used for domestic hot
water.
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, 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.
6
English (US)

4. Mechanical installation
WARNING
Electric shock
Death or serious personal injury
‐Switch off the power supply before you start any work on the
product. Make sure that the power supply cannot be switched on
accidentally.
WARNING
Electric shock
Death or serious personal injury
‐All electrical connections must be carried out by a qualified
electrician in accordance with local regulations.
WARNING
Pressurised system
Death or serious personal injury
‐Before installation of the pump, drain the system or close the
isolating valves on both sides of the pump. The pumped liquid
may be scalding hot and under high pressure
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 %.
7
English (US)

4.3 Preparing the product for installation
Before installing the product, please 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.
TM075626
• Always install the pump with horizontal motor shaft.
TM075625
Installation positions
8
English (US)

4.4 Mounting the product
WARNING
Pressurised system
Death or serious personal injury
‐Tighten the union nuts before opening the isolating valves. The
pumped liquid may be scalding hot and under high pressure.
The arrows on the pump housing indicate the flow direction through the pump.
1. Close the isolating valves and make sure that the system is not
pressurized during the installation of the pump.
TM075632
2. Mount the pump with gaskets in the pipes with the motor shaft horizontally.
TM075633
9
English (US)

3. Tighten the fittings.
TM075634
4. Switch on the pump.
Do not switch on the pump until the system has been filled with
liquid and vented.
TM075637
10
English (US)

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).
TM075628
3. Install the temperature sensor on the pipes on the hot-water outlet side.
The sensor must be installed 8 to 20 inches (20 to 50 cm) (A) from the
heat source and can be installed maximum 8 ft (2.5 m) (B) from the pump.
A
B
TM075639
11
English (US)

4.6 Changing the pump head position
WARNING
Electric shock
Death or serious personal injury
‐Switch off the power supply before you start any work on the
product.Make sure that the power supply cannot be switched on
accidentally.
WARNING
Hot surface
Death or serious personal injury
‐At high liquid temperatures, the product may become so hot that
only the operating panel must be touched to avoid burns. Close
the isolating valves on all sides of the product and then drain
it. Wear protective gloves.
To change the orientation of the pump head, do as follows:
1. Use a wrench to loosen the union.
TM075635
12
English (US)

2. Carefully turn the pump head to the desired position and tighten the union.
Open the isolating valves.
TM075636
5. Startup
WARNING
Hot surface
Death or serious personal injury
‐At high liquid temperatures, the product may become so hot that
only the operating panel must be touched to avoid burns.
WARNING
Electric shock
Death or serious personal injury
‐Clean only the product with a dry cloth
13
English (US)

5.1 COMFORT Auto variants
1
2
3
4
5
TM077262
Pos. Description
1AUTOADAPT. It lights up when the pump is running in AUTOADAPT.
2100 % LED. When lit, the pump runs according to continuous 100
% mode.
3Sensor defect alarm. Lights up in red color if the internal or
external temperature sensor is defect.
4 Arrow button for changing mode.
5Temperature control mode. It lights up when the pump is running
in temperature control mode.
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.
14
English (US)

•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 blinks,
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 variants
1
2
3
TM077263
Pos. Description
1Temperature control mode. It lights up when the pump is running
in temperature control mode.
2100 % LED. When lit, the pump runs according to continuous 100
% mode.
3 Arrow button for changing mode.
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.
15
English (US)

When a control mode is chosen, the corresponding LED is lit. If the LED blinks
in temperature control mode, the pump is in standby.
5.3 COMFORT Digital Timer variants
5.3.1 Operating panel
COMFORT PM
1
2
3
4
5
67
8
9
TM076110_
Pos. Description
1 Arrow button for changing mode.
2 100 % LED. When lit, the pump runs continuous 100 % mode.
3Gear wheel LED. It lights up when the actual time and operating
time can be set.
4 Actual time. One LED equals a time interval of 30 minutes.
5Timer LEDs showing the pump's operating periods. One LED
equals a time interval of 30 minutes.
6 Change button for toggling the actual time and timer LEDs.
7 OK button for confirming, changing or deleting settings.
8Activated timer function. When lit, the LED indicates that the timer
function is activated and that operating periods have been set.
9 Pump LED. It indicates that the pump is operating.
16
English (US)

To watch the COMFORT Digital Timer instruction video, scan the QR code
below.
QR_COMFORT-DT_INSTRUCTIONVIDEO
http://v2.t2g.me/?q=fc0652a6
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.
17
English (US)

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.
18
English (US)

6. Service and dismantle the product
WARNING
Electric shock
Death or serious personal injury
‐A damaged product must be repaired or replaced by Grundfos or
a service workshop authorized by Grundfos.
WARNING
Electric shock
Death or serious personal injury
‐Switch off the power supply before you start any work on the
product. Make sure that the power supply cannot be switched on
accidentally.
WARNING
Electric shock
Death or serious personal injury
‐All electrical connections must be carried out by a qualified
electrician in accordance with local regulations.
WARNING
Electric shock
Death or serious personal injury
‐Excessive use of water when cleaning the product may cause
the product to short circuit.
WARNING
Pressurised system
Death or serious personal injury
‐Drain the system or close the isolating valve on either side of the
pump before you do any work on the product. The pumped liquid
may be scalding hot and under high pressure. Wear protective
gloves and glasses.
19
English (US)

WARNING
Hot surface
Death or serious personal injury
‐At high liquid temperatures, the product may become so hot that
only the operating panel must be touched to avoid burns. Close
the isolating valves on all sides of the product and wait for the
product to cool down before working on it.
WARNING
Hot liquid
Death or serious personal injury
‐The pumped liquid may be scalding hot and under high
pressure. Close the isolating valves on all sides of the product
and then drain it.
CAUTION
Crushing of feet
Minor or moderate personal injury
‐Wear safety shoes when handling the product.
20
English (US)