Did you know?…

Thanks to recent improvements in product design, A.J. Manufacturing now offers several window models that meet the performance requirements of AAMA/WDMA/CSA 101/I.S.2/A440-08 for Light Commercial applications.

Our Model 500 Single Hung (Type H) meets Class LC-PG30; Model 905 Fixed Lite (Type FW) Class LC-PG70; and Model 900 Horizontal Slider (Type HS) Class LC-PG-30.

Follow these four steps for trouble-free door operation:    

1. Be sure the cabinet is level when you install our doors!

2. Shipping clips: use ‘em and lose ‘em.

All AJ access doors are packed with shipping clips.  These plastic or metal spacers are misnamed.  They’re really intended to be aids in the door installation process by maintaining the proper spacing of the door panel within the frame until installation is complete.  Once all frame installation screws have been tightened, remove and discard the shipping clips.  

3. Seal the frame.

It’s essential that you provide a 100% effective seal between the cabinet wall and the installation flange of our door frame.  You can use foam tape or sealant, but whichever you choose, keep these points in mind:  

• The seal must be continuous all around the frame.  Be certain that there are no pinhole gaps in sealant.  If you use foam tape, force in extra material at butt joints so that it can’t shrink back.  Avoid overlaps of foam tape to insure uniform contact.
• Foam tape should be 1/8” to 3/16” thick.  Any thinner and it may not fill surface irregularities.  Any thicker and it may cause waves in the installation flange between the installation screws.
• If sealant is used, apply both under the installation flange prior to door installation, and again around the edge of the installation flange after door installation.
• Do not pressurize the unit until sealant has had a chance to fully cure.  High operating pressures can blow pinholes through uncured sealant.
• AJ applies sealant to the cut ends of the frame prior to frame assembly, so it’s important that you prevent frame corners from bending during handling and installation, or this seal will be broken. 

4. Adjust the latch.

Improper latch adjustment is the #1 cause of field complaints!  

• Be certain that the door is square within its frame.  Loosen, re-square, and retighten installation screws if necessary.
• Latch cams/pawls cannot be properly adjusted with the shipping clips in place, so remove and discard shipping clips before final latch adjustments are made!
• There is a metal stop leg on AJ access door frames that prevents over-compression of the door gasket.  Regardless of which latch you have chosen for the door, for proper adjustment, the cam (pawl) of the latch must draw the door panel down to “kiss” the stop leg.  The door panel may flex slightly between latches, but it should touch the stop leg at every latch!
• The door panel does not kiss the frame at the hinge side, and that’s okay.  Just be sure that it does on the latch side.

Properly adjusted latch

Improperly adjusted latch

Utilizing our current technology in the HVAC access door manufacturing, AJ has developed a new access door specifically for use in electrical enclosures. These doors have been developed with a multi point laching system to allow a tight seal and ease of use for unlatching the enclosure.

For more information contact Bob Kortbein- bkortbein@ajdoor.com  | 800.328.9448 ext. 16

Due to a customer request, A.J. Manufacturing has aquired the tooling to manufacture HVAC insulated panels and access doors using 14 ga and 16 ga stainless steel. These access doors and panels will provide extreme strength to the HVAC unit, while also reducing sound attenuation in applications that require noise performance requirements.

For more information contact Bob Kortbein- bkortbein@ajdoor.com  | 800.328.9448 ext. 16

Our engineering team at AJ has developed a new steel insulated wall panel system for use in HVAC Modular Framing Systems. The geometry takes advantage of a stepped design to allow placement of the panel into the modular frames. The design is referred to as a Top Hat design.

For more information contact Bob Kortbein- bkortbein@ajdoor.com  | 800.328.9448 ext. 16