GRUNDFOS INSTRUCTIONS COMFORT 10-16 Temp, Auto and Digital Timer Installation and operating instructions
English (US) English (US) Installation and operating instructions Original installation and operating instructions Table of contents 1. Limited warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2. 2.1 2.2 2.3 General information . Hazard statements . . Notes . . . . . . . . . Pumped liquids . . . . 3. 3.1 Receiving the product. . . . . . . . . . . . . . . . . . . . . . . . . . 6 Inspecting the product . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4. 4.1 4.2 4.3 4.4 4.5 4.
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.
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.
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.
English (US) 2.3 Pumped liquids The product is suitable for pumping clean, thin, non-aggressive and nonexplosive 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 %.
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.
TM075626 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. • Always install the pump with horizontal motor shaft. TM075625 English (US) 4.
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. TM075632 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. Mount the pump with gaskets in the pipes with the motor shaft horizontally.
4. Switch on the pump. TM075634 Tighten the fittings. Do not switch on the pump until the system has been filled with liquid and vented. TM075637 English (US) 3.
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. 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). 3. Install the temperature sensor on the pipes on the hot-water outlet side.
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.
English (US) Carefully turn the pump head to the desired position and tighten the union. Open the isolating valves. TM075636 2. 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.
1 2 3 5 Pos. 4 TM077262 English (US) 5.1 COMFORT Auto variants Description 1 AUTOADAPT. It lights up when the pump is running in AUTOADAPT. 2 100 % LED. When lit, the pump runs according to continuous 100 % mode. 3 Sensor defect alarm. Lights up in red color if the internal or external temperature sensor is defect. 4 Arrow button for changing mode. 5 Temperature control mode. It lights up when the pump is running in temperature control mode.
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 TM077263 3 Pos. Description 1 Temperature control mode. It lights up when the pump is running in temperature control mode. 2 100 % LED.
5.3 COMFORT Digital Timer variants 5.3.1 Operating panel 1 9 2 8 3 4 5 COMFORT PM 7 Pos. 16 6 Description 1 Arrow button for changing mode. 2 100 % LED. When lit, the pump runs continuous 100 % mode. 3 Gear 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. 5 Timer LEDs showing the pump's operating periods. One LED equals a time interval of 30 minutes.
English (US) QR_COMFORT-DT_INSTRUCTIONVIDEO To watch the COMFORT Digital Timer instruction video, scan the QR code below. 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.
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.
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.
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.
7.1 Defective external temperature sensor (only COMFORT Auto) The red error LED indicator is turned on during AUTOADAPT and turns off when the pump is switched manually to temperature control mode. Cause The external temperature sensor is defective. Per default, the pump turns internally to temperature control mode, due to the external temperature sensor is needed for the AUTOADAPT control mode. The display does not automatically change to temperature control mode. Remedy • Replace the pump. 7.
English (US) Cause The pump is not running. Remedy • Check the power supply. • Check the operating periods are according to the needs. • Check if the impeller is blocked. 7.5 No instant hot water No instant hot water. Cause The pump is running. Remedy • Check if the return line or pump is air bound (dry running). • Check the water heater aggregate.
English (US) 8. Technical data Liquid temperature 35-176 °F (2-80 °C) Ambient temperature 32-104 °F (0-40 °C ) 1 Max. system pressure (PN 10) 145 psi (1.0 MPa / 10 bar) Min. inlet pressure 70 psi (0.5 bar) Max. head 3.9 ft (1.2 m) Max. sound pressure level 43 dB(A) Enclosure class 2 Overvoltage category (OVC) II Pollution degree 2 Altitude max.
Grundfos companies U.S.A. GRUNDFOS Pumps Corporation 9300 Loiret Boulevard Lenexa, Kansas 66219 USA Tel.: +1 913 227 3400 Fax: +1 913 227 3500 GRUNDFOS Water Utility Inc. 3905 Enterprise Court P.O. Box 6620 Aurora, IL 60598-0620 Phone: +1-630-236-5500 Fax: +1-630-236-5511 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 Canada GRUNDFOS Canada Inc. 2941 Brighton Road Oakville, Ontario L6H 6C9 Tel.
99836602 09.2020 Trademarks displayed in this material, including but not limited to Grundfos, the Grundfos logo and “be think innovate” are registered trademarks owned by The Grundfos Group. All rights reserved. ECM: 1278422 © 2020 Grundfos Holding A/S, all rights reserved.
