GRUNDFOS INSTRUCTIONS Installation and Operation Comfort Series Instant Hot Water System Hot water in an instant ANSI/NSF61 and IAPMO listed
Shipment Inspection Pre-Installation Checklist Pump Mounting Electrical Timer Control Technical Data and Application Timer Operation Warranty page 1. page 1. page 2. page 5. page 5. page 6. page 7. CONGRATULATIONS! You are now the owner of a Grundfos Comfort System. It has been carefully inspected and tested before shipment. It should give you long, efficient, trouble-free service. For maximum performance and reliability, please follow the simple instructions in this manual.
Pump Mounting: For Indoor Use Picture 1 1. Close the supply water valve to the water heater located, in most cases, above the hot water heater on the cold water inlet to the hot water heater. Disconnect 2. Drain the water from the hot water pipe by opening a hot water faucet in the house. Let the water run until it stops flowing. Then drain remaining water from hot water heater spigot. Leave the faucet open until pump installation is complete.
8. Plug the line cord of pump into a 115V outlet. Be sure to route the power cord so that it does not touch the exhaust vent piping of a gas or oil fired hot water heater. Picture 3 9. Using the timer (see pg. 6), set the pump to operate around your peak use times. (eg 30 minutes before the first shower until 15 minutes after last shower). Valve Location For the greatest effect, the valve should be located at a faucet with the greatest piping distance from the hot water heater.
. Connect the 1/2” hose fitting from the “Hot Out” port to the left side of the faucet. (see Picture #5) 6. Connect the 1/2” hose fitting from the “Cold Out” port to the right side of the faucet. (see Picture #5) 7. Connect the 3/8” hose fitting from the “Hot In” port to the left angle stop valve. (see Picture #5) 8. Connect the 3/8” hose fitting from the “Cold In” port to the right angle stop valve. (see Picture #5) 9. Open both hot and cold water angle stop valves. 10.
Electrical SAFETY WARNING Warning - Risk of electrical shock - This pump is supplied with a grounding conductor. To reduce the risk of electric shock, be certain that it is connected only to a properly grounded grounding type receptacle. The safe operation of this pump requires that it be grounded in accordance with the National Electrical Code and local governing codes and regulations. Electrical Requirements The operating voltage and other electrical data are marked on the motor label.
Timer Operation Setting & Operating The Timer Control Starting the Pump OFF TIMER ON NOTE: Before the circulator is started, the system must be filled with liquid and vented. 1. Set the timer switch to the actual time by turning the programming ring in the direction of the arrow until the timing arrow points to the actual time on the ring. 2. Plug in the power cord from the circulator and set the manual switch to the “ON” position. The circulator will now start. 3.
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.
