Watts 1450F - Manuel (Page 2)

Servicing
The strainer screen should be serviced at least twice a year.
This series is a new development for standard capacity domestic
water regulation service. It has special unitized construction which
consists of the seat, disc and stem assembly, and strainer screen all
together in one unit for complete replacement maintenance.
To clean or replace parts:
1. Close the shutoff valve upstream of the regulator.
2. Bleed pressure from system.
3. Loosen and remove the fast fill cap. Remove the spring cage and
all parts above the diaphragm.
4. Loosen and remove the diaphragm lock nut and lock washer,
pressure plate and diaphragm from the valve stem.
5. Unscrew seat cylinder from body and remove entire assembly.
6. Prior to reassembly flush valve to remove sediment.
7. After repairs are completed reassemble in reverse order.
Troubleshooting
A dripping Pressure Safety Relief Valve can be an indication that the
Feed Water Pressure Regulator requires service.
Important!
The pressure Safety Relief Valve is on the system to protect
against excessive water pressure only. The function of the valve
is to release any excess pressure from the system caused by
thermal expansion of the water. Therefore, do not be alarmed at
water drippage as the valve is doing what it is designed to do.
This drippage will not prevent the natural build-up of temperature
in the boiler because the valve operates on pressure only. The
valve will open when the gauge pressure reaches 30 psi.
To avoid water damage or scalding due to valve operation, a
drain pipe must be connected to the Pressure Safety Relief Valve
and run to a safe place of disposal.
Never plug the discharge of a pressure safety relief valve!
Other possible causes should also be examined prior to servicing
the regulator.
Some other possible causes are a water logged air cushion tank,
an over pressurized diaphragm style air cushion tank, an under-
sized air cushion tank and, on systems with a domestic water
coil, a leak in the tankless coil.
Periodic inspection of the system by a qualified plumbing and
heating technician is recommended. Corrosive water conditions,
extremely high water temperatures, unauthorized adjustments or
repair could render the valve ineffective for the service intended.
Regular inspection and cleaning of all water safety and control valves
assures maximum life and proper product and system function.
Stem
Seat
Cylinder
Strainer
Screen
Disc
Integral
Stainless Steel
Valve Seat
Diaphragm
Seat and Disc
Assembly
Fast Fill Lever
and Cap Assembly
Repair Kits Series 1156F – N256
When Ordering, specify:
1. Ordering code number
2. Size of valve
3. Type number
4. Model shown on nameplate
Kit for 1156 and N256 includes all items shown above.
Ordering nO. Kit nO. Size (in.)
0884390 1156FRK 1 ⁄
2
0878339 N250RK 3 ⁄
4
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.