Watts LFN36 User Manual

IS-N36-M1

Series LFN36

Installation Instructions for Water Service

!

WARNING

Read this Manual BEFORE using this equipment.
Failure to read and follow all safety and use information can

result in death, serious personal injury, property damage, or
damage to the equipment.

Keep this Manual for future reference.

Install No. LFN36 in cold water supply line with or above the highest point in the tank.

No. LFN36-M1 must be installed vertically in an upright position as shown. No valve
is to be placed between the relief valve and the tank. Illustrations show typical and
correct positions. Valve opens on vacuum of not over
mum working pressure: 200psi (13.8 bar). (Maximum steam working pressure:
15psi or 103 kPa.) Maximum temperature: 250°F (121°C).

1

⁄2" mercury column. Maxi-

Watts No. LFN36

Hot

T&P Relief

Valve

Tank

Cold

Domestic Hot Water Supply Tanks and

Heaters with Bottom Feed

!

WARNING

Not Suitable for Crossconnection Control.

For Low Pressure
Steam Service

Note: When used for Steam Service,
BE SURE to use pigtail to prevent live
steam from damaging No. LFN36-M1.

Cold

Domestic Hot Water Supply Tanks

and Heaters with Top Supply

Watts
No. LFN36

Watts No. LFN36

Tank

Cold

Table Top Heaters

Hot

T&P Relief

Valve

T&P Relief

Valve

Maximum Steam Pressure:

15psi (103.4 kPa).

Maximum Temperature:

250°F (121°C).

WARNING: This product contains chemicals known
to the State of California to cause cancer and birth
defects or other reproductive harm.

For more information: www.watts.com/prop65

Watts No.
LFN36

Unit Heaters

Trap

Pigtail

Jacketed

Kettles

Trap

Trap

Watts No. LFN36

Pigtail (Not
needed for
pressure
under 5 psi).

Watts No.

LFN36

Pigtail

Pigtail

Zone Control

Valves

Low Pressure Steam Heating Systems

Air Vents

LFN36-M1
should be
installed on
supply main on
system side of
control zone
valve.

Temp.

Regulator

Alternate Installation

T&P Relief
Valve

Watts No.
LFN36

Pigtails

Heating Coil

Steam Coil Heaters

Steam Trap

Limited Warranty: Watts Regulator Co. (the “Company”) warrants each product to be free from defects in material and

workmanship under normal usage for a period of one year from the date of original shipment. In the event of such defects
within the warranty period, the Company will, at its option, replace or recondition the product without charge.

THE WARRANTY SET FORTH HEREIN IS GIVEN EXPRESSLY AND IS THE ONLY WARRANTY GIVEN BY THE COMPANY
WITH RESPECT TO THE PRODUCT. THE COMPANY MAKES NO OTHER WARRANTIES, EXPRESS OR IMPLIED. THE
COMPANY HEREBY SPECIFICALLY DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT
LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

The remedy described in the first paragraph of this warranty shall constitute the sole and exclusive remedy for breach
of warranty, and the Company shall not be responsible for any incidental, special or consequential damages, including
without limitation, lost profits or the cost of repairing or replacing other property which is damaged if this product does not
work properly, other costs resulting from labor charges, delays, vandalism, negligence, fouling caused by foreign material,
damage from adverse water conditions, chemical, or any other circumstances over which the Company has no control.
This warranty shall be invalidated by any abuse, misuse, misapplication, improper installation or improper maintenance or
alteration of the product.
Some States do not allow limitations on how long an implied warranty lasts, and some States do not allow the exclusion
or limitation of incidental or consequential damages. Therefore the above limitations may not apply to you. This Limited
Warranty gives you specific legal rights, and you may have other rights that vary from State to State. You should consult
applicable state laws to determine your rights. SO FAR AS IS CONSISTENT WITH APPLICABLE STATE LAW, ANY IMPLIED

WARRANTIES THAT MAY NOT BE DISCLAIMED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO ONE YEAR FROM THE DATE OF ORIGINAL
SHIPMENT.

A Watts Water Technologies Company

USA: Tel. [phone] • Fax: [phone] • www.watts.com

Canada: [phone] • Fax: [phone] • www.wattsca

IS-N36-M1 1325 EDP# 1910930 © Watts, 2013