Calibre Door Closers CA3300-B Overhead Concealed (OHC) Closer Body Only, 3300 Series, Adjustable Spring Tension
Features:
- Handicap (ADA) multi-sized closers with adjustable spring power for a range of sizes after installation.
- Underwriters’ Laboratories Inc. Listed for units without hold open feature. UL10C for positive pressure and certified to conform to UBC 7.2 (1997) BS476 for fire safety.
- Center Hung Door Application: Double or single acting (applied door stop renders unit single acting). Adjustable ‘S’ type side loading or ‘A’ type, ‘K’ type, and ‘PT’ type end loading arms are available for center pivoted door applications.
- Offset Hung Door Application: Single Acting Offset ‘JO’ and ‘VO’ type top arms are available for butt hung or offset pivoted applications. Note : Offset arm application geometry increases the effective spring tension in some instances thereby possibly exceeding the 5 lb. Opening force requirements.
- Dual Speed Control Valves: Closing and latching speeds controlled by separate regulating valves, fully adjustable after installation.
- Adjustable CA3010-DP dual purpose radial ball-bearing bottom pivot set is provided for floor or threshold mounted (Side or End Loading) center pivoted installation. CA3010-G and CA3010-GE bottom pivot sets are optional, and must be ordered separately.
- Universal application. Non-handed for left or right door application.
- Installs in an aluminum storefront header or transom as small as 1-3/4" x 4"
- Positive cam centering for alignment and to hold door closed against normal wind or draft conditions.
- Stable hydraulic door check fluid for any climatic operation and provides constant lubrication.
- The 3300-20 series is the standard 3300 series OHC door closer assembled with an extended spindle shaft (17/64" longer than standard).
Functions:
- Center Hung Doors:
- Complete units for aluminum doors and frames are furnished with top arm assembly (‘S’ side loading, ‘A’, ‘K’, or ‘PT’ end loading), adjustable dual purpose CA3010-DP bottom pivot set for floor or threshold mounting (side or end loading), and CA3010-FS anchor set with all fasteners.
- ‘S’ type side loading top arm, CA3010-DP adjustable dual purpose pivot set, and the CA3010-FS anchor set will be furnished unless otherwise specified by the customer.
- ‘A’ type, ‘K’ type or ‘PT’ type end loading, and ‘JO’ or ‘VO’ type offset arms are optional, but must be specified.
- Offset Hung Doors: Complete units for offset pivoted or butt hung aluminum doors and frames are furnished with a ‘JO’ or ‘VO’ type offset arm and CA3010-FS anchor set with all fasteners. (Offset pivots or butt hinges not included. Note: Top door stop/arm cover by others).
Resources
Manufacturer Resources
Product Specs
- Subcategory:
- Concealed Closers
- Series:
- 3300 Series
- Product Group:
- Door Controls
- Product Subgroup:
- Parts and Accessories
- Product Type:
- Door Closer Body
- Commercial/Residential:
- Commercial
- Parts and Accessories Type:
- Replacement Parts
- Product Attribute:
- Parts and Accessories
- Door Hand Direction:
- Non-Handed
- Product Category:
- Door Controls
- Department:
- Door Hardware
Calibre Door Closers CA3300-BO – Frequently Asked Questions
1) Does the Calibre CA3300-B come with the arm and pivot set, or is it just the closer body?
The CA3300-BO is the closer body on its own, no arm and no pivot set. A complete 3300 Series overhead concealed unit for a center hung aluminum door ships with a top arm ('S' side loading, or 'A', 'K', or 'PT' end loading), the adjustable dual purpose CA3010-DP bottom pivot set for floor or threshold mounting, and the CA3010-FS anchor set with fasteners. Buying body only means you are reusing the arm and pivot already in the opening, or ordering those pieces separately. If the existing arm or pivot is worn, replacing the body alone won't fix the door.
2) Will an overhead concealed closer fit in a 1-3/4 inch by 4 inch storefront header?
Yes. The Calibre 3300 Series overhead concealed closer installs in an aluminum storefront header or transom as small as 1-3/4 x 4 inches, which is the tight standard on most aluminum entrances. That header pocket is the first thing to measure on a retrofit, because a concealed closer that doesn't fit the transom tube leaves you with a surface mounted closer instead.
3) Is the Calibre 3300 closer handed? Do I need to order a left or right version?
Non-handed. One CA3300-B body works on a left or right hand door, so you don't specify handing when ordering and you can stock a single body for both leaves of a pair. Handing only enters the picture through the arm you pair it with: 'JO' and 'VO' offset top arms are single acting.
4) Can I use one closer size for several doors instead of ordering a specific spring size?
That's the point of the 3300 Series. It's a multi-sized closer with spring power adjustable after installation, so one body covers a range of door sizes and you can tune the force on site rather than pulling the unit and reordering. For a property manager standardizing across a run of storefront doors, that means one part number on the shelf. Closing and latching speeds are on separate regulating valves, also adjustable after install.
5) Will this closer meet the 5 lb ADA opening force requirement?
The 3300 Series is a handicap (ADA) closer with adjustable spring power, so on a center hung application you can dial the force down to meet the opening force requirement. There is a real caveat on offset hung doors: the geometry of an offset arm application increases the effective spring tension in some instances, which can push the opening force past the 5 lb requirement. If ADA force is a hard requirement on your job, that pushes you toward the center hung arms rather than the 'JO' or 'VO' offset arms.
6) Which top arm do I order for a center pivoted door versus a butt hung or offset pivoted door?
Center pivoted doors take the 'S' type side loading arm or the 'A', 'K', or 'PT' type end loading arms. Butt hung or offset pivoted doors take the single acting 'JO' or 'VO' offset top arm. Unless you say otherwise, a complete center hung unit ships with the 'S' side loading arm, the CA3010-DP pivot set, and the CA3010-FS anchor set, so the end loading and offset arms have to be called out on the order. On an offset job, note the top door stop and arm cover are by others, and offset pivots or butt hinges are not included.
7) What can I use instead of the Calibre CA3300-B when the storefront header will not accept a concealed closer?
Look at the Hager 5101, a heavy duty door closer body with adjustable sizes 1 through 6. The Calibre CA3300-B is an overhead concealed closer body that has to live inside the header or transom, and it needs a header opening of at least 1-3/4 inch by 4 inch to go in. Where that cavity does not exist or the header is already occupied, the 5101 body is the direction to go, since it is not dependent on a concealed header pocket. Both give you spring power adjustment after the closer is on the door, so an ADA opening force target can still be dialed in either way.
8) Is the Hager 5101 a drop-in replacement for a Calibre CA3300-B closer body?
No, treat them as two different installations rather than a swap. The CA3300-B is an overhead concealed body built for center hung or offset hung aluminum doors, taking an S, A, K, or PT type top arm on center pivoted openings and a JO or VO offset arm on butt hung or offset pivoted openings, with the CA3010-DP bottom pivot set in the floor or threshold. The Hager 5101 is a closer body with adjustable sizes 1 through 6 and does not use the Calibre arm and pivot family. Pulling a CA3300-B out and putting a 5101 in means new prep and new arm hardware, not a body exchange. For a like-for-like body change on an existing Calibre concealed opening, stay with the CA3300-B; note also that the 3300-20 series is the same 3300 body assembled with a spindle shaft 17/64 inch longer than standard, which matters if the original was that variant.
9) Can an overhead concealed closer be double acting for a door that swings both ways?
On a center hung application, yes, the 3300 Series is double or single acting. Applying a door stop is what renders it single acting. Offset hung applications with the 'JO' or 'VO' arms are single acting only, so a two-way swing means a center pivoted opening.
10) What is the difference between the 3300 and the 3300-20 series?
The 3300-20 is the same 3300 Series overhead concealed closer assembled with an extended spindle shaft, 17/64 inch longer than standard. You order the -20 when the header or door top rail arrangement puts the arm farther from the closer body than a standard spindle reaches. Measure before you order the body, because the spindle length is built into the unit and isn't something you change in the field.
11) Which bottom pivot comes with a Calibre 3300 closer and what are the other options?
The adjustable CA3010-DP dual purpose radial ball-bearing bottom pivot set is what's provided, and it handles either floor or threshold mounting for side or end loading center pivoted installs. The CA3010-G and CA3010-GE bottom pivot sets are optional and have to be ordered separately. On a body-only purchase none of these are included at all, so confirm which pivot is already in the opening.
12) Should I use an overhead concealed closer or a surface mounted one?
A concealed closer like the Calibre 3300 lives inside the storefront header or transom, so nothing shows on the face of the door and the closer is out of reach of tampering, which is why it's the usual choice on aluminum entrances and glass fronts. It needs a header pocket, minimum 1-3/4 x 4 inches, and it works with pivots rather than hinges on the center hung version. If the opening has no transom tube, or it's a hollow metal door on butt hinges in a back of house corridor, a surface mounted closer body such as the Hager 5101, a Grade 1 heavy duty closer with adjustable sizes 1 through 6, mounts to the door face and frame and needs no header cavity.
13) For a double acting center pivoted aluminum door, which closer body do I order?
The Calibre CA3300-B is the one written for that opening. It is a center hung application closer that runs double or single acting, with an applied door stop making it single acting, and it is non-handed so the same body serves a left or a right hand door. The Hager 5101 is described as a heavy duty door closer body with adjustable sizes 1 through 6, without a double acting center hung application stated for it. When the door swings both ways on center pivots, the CA3300-B with an S, A, K, or PT top arm and the CA3010-DP bottom pivot set is the configuration to spec.
14) Is the Calibre 3300 closer fluid going to thicken up on an exterior door in winter?
The 3300 Series uses a stable hydraulic door check fluid rated for any climatic operation, which also keeps the unit lubricated in service. On an exterior storefront entrance that matters, because a closer whose fluid stiffens in the cold stops latching and starts getting held open. Positive cam centering also holds the door closed against normal wind or draft conditions.
15) Is the Calibre CA3300-B rated for commercial traffic or is it a residential closer?
Commercial. The 3300 Series is a commercial overhead concealed closer built for aluminum storefront and glass front entrances, sold as a replacement part when the closer body in an existing header has failed. It is not a residential product.
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Absolutely. The Calibre Door Closers CA3300-BO is backed by a manufacturer’s warranty.
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