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English (US)

English (US) Installation and operating instructions

Original installation and operating 
instructions.

CONTENTS

Page

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, FOB 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 which 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.

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 
limit actions 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.

1.

Limited warranty

2

2.

Symbols used in this document

3

3.

Product introduction

3

3.1

Introduction

3

3.2

Delivery and handling

3

3.3

Applications

4

3.4

Identification

4

4.

Installation

4

4.1

Pre-installation checklist

4

4.2

Electrical requirements

4

4.3

Three-step installation procedure

4

5.

Maintenance and service

7

6.

Technical data

8

6.1

Approvals

8

7.

Fault finding

9

8.

Disposal

9

Warning

Prior to installation, read these 
installation and operating 
instructions. Installation and 
operation must comply with 
national, state, and local 
regulations and accepted codes of 
good practice.

Summary of Contents for Comfort 595916

Page 1: ...GRUNDFOS INSTRUCTIONS Comfort System Hot water recirculation system Installation and operating instructions ANSI NSF372...

Page 2: ...llation 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 s...

Page 3: ...nts carefully to make sure no damage has occurred to the pump during shipment Take care to ensure the pump is NOT dropped or mishandled dropping will damage the pump Kit includes One Grundfos UP15 cir...

Page 4: ...charge using the 3 4 female fitting and gasket supplied on the pump Ensure that the pump shaft is horizontal The pump should be installed so that the pump is pumping away from the hot water heater tow...

Page 5: ...8928 2913 TM05 8929 2913 Caution Warning Do not use Teflon tape or pipe joint compound pipe dope on the valve threads Caution Warning Hand tighten flex hose connections plus 1 4 turn with wrench Overt...

Page 6: ...ct the 3 8 hose fitting from the HOT IN port on the bypass valve to the left angle stop valve See fig 6 6 Connect the 3 8 hose fitting from the COLD IN port on the bypass valve to the right angle stop...

Page 7: ...settings 2 Option two Pumping controlled by specific times of the day Set the manual switch in the TIMER position To set the specific ON and OFF times during the day located on the programming ring p...

Page 8: ...ax liquid temperature 150 F 66 C Min liquid temperature 36 F 2 C Connection 3 4 M x 3 4 F NPT Thermal bypass valve Connections 1 2 NPSM Timer Supply voltage 115 120 VAC Contact rating 16 amps Three ma...

Page 9: ...too much hot water on cold water side a To check for proper installation close cold water angle stop valve below the sink b Open the cold water faucet c Water should slowly flow from the cold water f...

Page 10: ...10...

Page 11: ...3500 www grundfos us GRUNDFOS Canada 2941 Brighton Road Oakville Ontario L6H 6C9 Canada Phone 1 905 829 9533 Telefax 1 905 829 9512 www grundfos ca GRUNDFOS M xico Boulevard TLC No 15 Parque Industri...

Page 12: ...CM 1118650 www grundfos com The name Grundfos the Grundfos logo and be think innovate are registered trademarks owned by Grundfos Holding A S or Grundfos A S Denmark All rights reserved worldwide Copy...

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