For Low Pressure Steam Service
Note: When used for Steam Service, BE SURE to use pigtail to prevent
live steam from damaging No. N36-M1.
Maximum Steam Pressure:
15psi (103.4 kPa).
Maximum Temperature:
250°F (121°C).
IS-N36-M1 0914 EDP# 1910930 © Watts 2009
W a t e r S a f e t y & F l o w C o n t r o l P r o d u c t s
USA: 815 Chestnut St., No. Andover, MA 01845-6098; www.watts.com
Canada: 5435 North Service Rd., Burlington, ONT. L7L 5H7; www.wattscanada.ca
Watts No.
N36-M1
Watts No.
N36-M1
Trap
Trap
Trap
Jacketed
Kettles
Unit Heaters
Pigtail
Pigtail (Not
needed for
pressure
under 5 psi).
Watts No.
N36-M1
Low Pressure Steam Heating Systems
Pigtail
Pigtail
Zone Control
Valves
N36-M1 should be
installed on supply
main on system
side of control
zone valve.
Air Vents
Watts No.
N36-M1
Steam Coil Heaters
Pigtails
Heating Coil
Steam Trap
Temp.
Regulator
Alternate Installation
T&P Relief
Valve
IS-N36-M1
Series N36-M1 and
Series LFN36-M1
Installation Instructions for Water Service
Install No. N36-M1 in cold water supply line with or above the highest point in the tank.
No. N36-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
1
⁄2" mercury column.
Maximum working pressure: 200psi (13.8 bar). (Maximum steam working pressure:
15psi or 103 kPa.) Maximum temperature: 250°F (121°C).
Caution: Not Suitable for Cross-Connection Control.
Table Top Heaters
Watts No.
N36-M1
Cold
T&P Relief
Valve
Domestic Hot Water Supply Tanks
and Heaters with Top Supply
Watts No.
N36-M1
Tank
Hot
Cold
T&P Relief
Valve
Domestic Hot Water Supply Tanks and
Heaters with Bottom Feed
Watts No.
N36-M1
Tank
T&P Relief
Valve
Hot
Cold
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.
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