Watts LF53L - Manual

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.
Installation Guidelines
Model 53 and LF53 Pressure Relief Valves
For pressure relief only. Furnished without a lever.
1 ⁄
2
" female
drain. Pressure range 75-175psi (5.17-12.06 bar). Setting 50,
75, 125 and 150psi (3.45, 5.17, 8.61 and 10.34 bar).
Series 530C and LF530C
Calibrated Pressure Relief Valves
Calibrated adjustment allows for setting valve to required
pressure relief. Adjustable range 50-175psi (3.45-12.06 bar).
The Series 530C and LF530C is ideal for bypass thermal
expansion pressure relief.
These valves are not an ASME approved safety relief valves
and should not be used in system applications with this
requirement.
Auxiliary (Bleeder) Pressure Relief Valve for
Thermal Expansion Relief
Purpose
Auxiliary (bleeder) pressure relief valve
is set approximately 25psi (172 kPa)
lower than heater T&P valve and
eliminates unnecessary and frequent
relief from hot water heater T&P relief
valve. This protects the system from
thermal expansion pressure buildup
during times when reducing valve thermal
expansion bypass is ineffective due to high inlet water pressure.
The adjustable Series 530C and LF530C is preferred to provide
a range of settings adaptable to any installation. Some national
and regional codes require maximum static (no-flow) pressure at
any fixture to be not more than 80psi (5.5 bar).
Location
Install auxiliary (bleeder) pressure relief valve downstream of
the reducing valve, in any convenient location where slight
spillage is not objectionable. If spillage is frequent, install to
drain in set tubs or other drain location.
IS-53/530C/111
No. 111 No. 530C No. 53
Installation
Model 530C and LF530C
Calibrated Pressure Relief Valve
Model 53, LF53, 111 and LF111
Pressure Relief Valves
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.
IS-53/530C/111 1325 EDP# 1910868 © 2013 Watts
USA: Tel: (978) 688-1811 • Fax: (978) 794-1848 • www.watts.com
Canada: Tel: (905) 332-4090 • Fax: (905) 332-7068 • www.watts.ca A Watts Water Technologies Company
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
Dielectric Unions
Cold
Water
Heater
Reduced
Pressure
50psi
Cold Supply
Water Pressure
Reducing Valve
Hot
Set Tub
Auxiliary Relief
Valve Can Be
Installed On
Either Hot Or
Cold Piping
*T&P valve should be set according to tank working pressure or local code requirements.
**Only where code approved. NOTE: Resulting system pressure will be as high as bleeder
valve setting (usually 125psi).
**Watts Auxiliary
Thermal Expansion
Pressure Relief Valve
No. 53, LF53, 530C,
LF530C, 111 or LF111
*Watts T&P
Safety Relief
Valve Set At
150psi
One-Way
Flow Device