1.1 Hazard statements The symbols and hazard statements below may A blue or gray circle with a white appear in Grundfos installation and operating graphical symbol indicates that an instructions, safety instructions and service action must be taken.
ALPHA CS non-aggressive and non-explosive liquids without solid particles or fibers or mineral oils. ALPHA CS is designed for domestic hot-water If required, 50 % of the volume solution recirculation systems without a dedicated return of glycol and water can be used. However, a line.
3. Approvals 3.2 Approvals for Comfort Valve 3.1 Approvals of pump Approval marks WATER QUALITY Drinking water system component NSF/ANSI 61 NSF/ANSI 372 WATER QUALITY Drinking water system component NSF listing is only valid for temperatures up to NSF/ANSI 61 NSF/ANSI 372 140 °F.
5. Installation requirements 5.1 Radio frequency radiation exposure information (for Canada and US only) CAUTION Radiation Minor or moderate personal injury ‐ This equipment complies with FCC and ISED radiation exposure limits set forth for an uncontrolled environment. This equipment must be installed and operated with a minimum distance of 20 cm (0.66 ft) between the radiator and your...
Electric shock Death or serious personal injury ALPHA COMFORT SYSTEM ‐ A damaged product must be Faucet repaired or replaced by Grundfos or a service workshop authorized Comfort Valve by Grundfos. 6.2 Mounting the product CAUTION The arrows on the pump housing indicate the flow Crushing of feet direction through the pump.
6.3 Changing the control box position CAUTION Hot surface Minor or moderate personal injury ‐ Position the pump so that persons cannot accidentally come into contact with hot surfaces. WARNING Pressurized system Minor or moderate personal injury ‐ Before dismantling the pump, drain the system or close the isolating valves on both sides of the pump.
6.4 Installation of Comfort Valve 2. Connect the 1/2" × 3/8" flex hoses to the ports on the thermal bypass valve marked HOT IN and COLD IN. Do not use Teflon tape, pipe joint compound or pipe dope on the valve 3.
6.4.4 Checking for proper pump and bypass 7. Electrical connection valve operation WARNING After installing the pump and the bypass valve, connect the pump to the power supply and check Electric shock the installation as follows: Death or serious personal injury 1.
The pump is factory set to valve AUTOADAPT. icons on the operating panel. You can change the settings on the operating panel or via Grundfos GO. We recommend to Due to interference of the follow the guided setup in Grundfos GO.
2.3 gpm max. flow rate Setting 1" - constant curve III with 3.8 gpm max. flow rate The pump is running. Warning Alarm The rotation of Grundfos mini Eye follows the direction of rotation of the impeller. The impeller in ALPHA rotates counterclockwise.
Bluetooth connection. system regardless of the head. This control mode is recommended when the 2. Go to the Remote menu in Grundfos GO. pump is externally controlled, for example with an aquastat. 3. Press the connect icon on the operating panel.
3 and then follow the the factory setting, valve mode AUTOADAPT. instructions in Grundfos GO. 3. Connect your product to Grundfos GO if it is 10.3 Flow limitation not already connected. You can set a minimum and maximum flow rate in The app automatically checks if the product Grundfos GO.
This equipment must ‐ A damaged product must be be installed and operated with a repaired or replaced by Grundfos minimum distance of 20 cm (0.66 or a service workshop authorized ft) between the radiator and your by Grundfos.
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 Hot surface Minor or moderate personal injury ‐...
Faults preventing the pump from operating Fault chart properly are indicated on the operating panel with Grundfos mini Eye turning either yellow or red and Grundfos Code in Fault the display showing an error code. mini Eye...
12.3 Resetting alarms and warnings 12.4 Alarm and warning code logs manually with Grundfos GO Grundfos GO will save up to 40 alarms and warnings in total in the Alarms and warnings 1. Go to Alarms and warnings. menu. 2. Press Reset alarm.
12.10 Alarms 12.10.1 Code 51 (Blocked motor) Grundfos mini Eye is flashing red, the displays show error code E1 and the pump stops. Cause Remedy The pump is blocked. Only a qualified specialist must perform such work. 1. Isolate the pump.
Prime and vent the pump before a new startup. 12.11 Warnings 12.11.1 Code 43 (Impellers forced forward) One indicator light in Grundfos mini Eye is yellow and rotating, the display shows error code E3 and the pump is running. Cause...
Max. 18 ft (5.5 m) 2. If this is not possible, contact the nearest 1 × 115 V, ± 10 %, 60 Supply voltage Grundfos company or service workshop. See also end-of-life information at The pump requires no www.grundfos.com/product-recycling. Motor protection external motor protection.
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When a product is subject to this Limited Warranty a purchaser should contact the seller from which it purchased the product to make a claim. If the seller of a product is no longer in business, the purchaser should contact a Grundfos Authorized Service Partner, which can be found at www.grundfos.com/us...
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Para el caso de productos que no sean de consumo, consulte los términos de la garantía de Grundfos definidos en la cláusula 10 de los términos y condiciones de venta de productos y servicios de Grundfos para los EE. UU., disponibles en https://www.grundfos.com/legal/grundfos-customer-terms/usa-...
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