ACTUATORS ARE INSTALLED ON THE 2ND DIMENSION, PHOTO IS GENERIC AND MAY NOT REPRESENT THE PART BEING ORDERED
12X8 Rectangular Manual Bypass Damper
GENERAL DESCRIPTION
The model PRD Pressure Regulating Bypass Dampers are a single blade rectangular barometric damper assembly with a counter balanced weighted arm. The barometric bypass damper is an economical way to manage the duct static pressure when zone dampers close. Bypass Damper adjustment is achieved by off-setting the hex shaped arm, securing weight #1 towards the bottom of that arm and moving the extra weight(s) (optional) up or down the arm, until the desired action is achieved. Additional weights can be added if necessary. See Page 3 for details. The damper can be mounted to relieve static pressure by returning the air back to the return air duct or by dumping it into a non-critical conditioned area. A restricting hand damper (part# ND-HD) should be installed downstream of the PRD by-pass damper, which allows the installer to set the desired pressure drop across the bypass duct, thereby controlling how much by-pass air mixes with the return air. See Application Note 090376A0169 rev F. Together, the PRD and ND-HD are an effective low cost bypass solution, for any residential zoned HVAC system.
Resources
Professional packing and fast shipping
Because of our long-standing relationship with UPS FedEx DHL as well as other major international carriers, we are able to offer a variety shipping options. Our warehouse personnel are extremely skilled and will package your products according to our precise and exact specifications. Your items will go through an extensive inspection and be properly packaged prior to being shipped. We deliver to thousands of customers every day in a variety of countries. This is a testament to our dedication to being the largest online retailer globally. The warehouses and centers of distribution are located in Europe and the USA.
Note: Orders with more than one item will be assigned a separate processing time for each item.
Prior to shipping before shipping, we'll inspect thoroughly the items you've ordered. The majority of orders will be delivered within 48 hours. The expected delivery time will be between 3-7 days.
Returns
Stock is dynamic. It's not completely managed by us since we're involved with several parties such as the factory and the storage. Stocks can be changed at any moment. Be aware that your order will run out of stocks after you place the order.
The policy is for 30 days. If it's been more 30 days since the date you bought the item We're sorry to say that we can't offer you a complete refund or exchange.
For your item to be considered eligible for return, it must be unopened and in the condition you received it in. It should also remain in the original packaging.
Related products
Johnson Controls Parts
00-00051-01 | ENCLOSUREELECTRONIC | Johnson Controls Johnson Controls
Uncategorized
00061-10-9375 | 5/8" Compression Nut 15/16″ Hex | Midland Metal Mfg. Midland Metal Mfg.
Uncategorized
00068-0808GAP | 1/2 X 1/2 COMP X MALE ADAPT W/LARGE NUT | Midland Metal Mfg. Midland Metal Mfg.
