Installation Instructions

80-9377-0621-020 (03-13)

An incorrectly installed or improperly adjusted door closer can cause property damage or personal injury. These instructions should be followed to avoid the possibility of CAUTION misapplication or misadjustment. CAUTION

Parallel Non Hold Open or Hold Open Arm

Note: For Special Applications a separate door and frame preparation template is packed with these instructions. Use this instruction sheet for installation sequence and closer adjustments only.

For Hold Open function, consult factory or authorized representative

Series
Sized* Closer	Multi-Sized ** Closer	Product Type
PR7770	PR7570	Security Door Closer (Door Closer with both a Security Cover and Security Arm)

• * PR7770 Series are sized door closers wi h 50% power increase capability. Power size 2 weakest power, power size 6 strongest. t
• ** PR7570 Series can be adjusted from power size 1 thru 6.
• *For closers with or without "DA" suffix Delayed Action closing feature

**Note:

• Door closer cover is handed and cannot be reversed. All other components are non handed.
• It is recommended that the door, on which the door closer will be installed, be hung on ball bearing hinges or offset pivots. Door must swing freely.
• A separate door stop, supplied by others, is recommended to prevent damage to the door closer, closer arm, or to the door, frame or adjacent walls.
• Door and Frame must be properly reinforced, or use of special fasteners employed, to prevent the mounting screws from pulling out.
• All dimensions are given in inches with corresponding metric dimensions (mm) in parenthesis.
• Torx tamper resistant drive machine screws are normally supplied with this product.

Template

Do Not Scale Drawing Left Hand Door Shown Dimensions are in inches (mm). Maximum Door Swing 180°, conditions permitting.

Narrow Stop Frame

	Dim. A		Dim. B		Dim. C
Opening	inches	mm	inches	mm	inches	mm
To 100°	8-5/8	219	9-1/8	232	8-3/8	213
101° to 120°	7-7/8	200	8-3/8	213	7-5/8	194
121° to 180°	6-3/4	171	7-1/4	184	6-1/2	165

Maximum Hinge width 5" (127) for doors swinging beyond 150 degrees.

	Preparation for Fasteners
Fasteners		Door or Frame	Drill-Sizes
Standard	1/4" - 20 Machine Screw	Metal	Drill: #7 (0.201" dia.) Tap: 1/4" - 20
Optional	Sex Nuts and Bolts (SNB)	Hollow Metal	9/32" (7 mm); through 3/8" (9.5 mm) on door or transom-face opposite to closer
		Aluminum or Wood	3/8" (9.5 mm) through

• Set closer power for door size using chart below.

Power Adjustment Chart
DOOR	PARALLEL ARM INSTALLATION	*	MAXIMUM DOOR SIZE
			32" (0.81 m)	36" (0.9 m)	42" (1.1 m)	48" (1.2 m)
INT		TURNS FROM	0	3	5	8
EXT	PR7570		4	6	8	12
INT		ZERO	0	2	5	8
EXT	PR7770		2	5	8	11

*16 -360° TURNS MAXIMUM AVAILABLE

applied to the arm then adjust spring power. The power adjustment will not work properly if the closer spring is not pre-loaded. To increase power, use 11/16" wrench to turn power adjustment nut clockwise. To decrease power, turn nut counter clockwise.

Install closer per instructions with the proper pre-load DO NOT use a power drill or driver to turn adjustment nut. This will damage closer and void warranty. "Spring Power Adjustment Nut" + -

80-9377-0621-020 (03-13) Page 2

Installation Sequence

• Use template on page 2 to locate holes on door and frame: 4 on door for closer or drop plate. 5 on underside of frame stop for soffit plate.
• Prepare door and frame for fasteners using chart above.
• Mount closer on door. (A drop plate is available for use on doors having narrow top rails) Power Adjustment Nut should be away from hinge. Valves are DOWN for Left Hand Door . Valves are UP for Right Hand Door .

• Use 1/8" hex wrench to close valves. Turn Clockwise. For STANDARD CLOSER , close valves 'S/D' and 'L'. DELAYED ACTION CLOSER , close valves 'S' and 'L'.

• Place main arm on shaft, aligning mark on arm with pinion flat on pinion shaft; "Z" for Left Hand Door; "Y" for Right Hand Door. Secure with 1/4-20 x 1/2 (13) round

Left Hand Door

CAUTION! DO NOT BACK VALVES OUT OF CLOSER OR A LEAK WILL RESULT

• Reopen valves closed in Step 2. Turn Counterclockwise
• With door closed, align soffit plate with mounting holes in frame. Fasten soffit plate to frame with flat head screws provided.
• Adjust closer per instructions on page 4 before installing cover

Install Cover:

• Screw Standoffs into holes in closer.

• screws provided. Fasten cover to closer with 4 #8-32x1/4 round head

Page 3 80-9377-0621-020 (03-13)

Unit Adjustment

Closing Speed Controls (Figure 2A or 2B and 3.)

• Valve "S/D" Controls Sweep Range on Standard closer (or Delay Range on Delayed Action closer).
• Valve "L" Controls Latch Range.
• Valve "S" Controls Sweep Range only on Delayed Action closer.

Closing Power Control Figure 1 For PR7570 Only Set closer to desired size. For recommended sizes, refer to the Power Adjustment Chart on page 2. Install closer per instructions with the proper pre-load applied to the arm then adjust spring power. The power adjustment will not work properly if the closer spring is not pre-loaded. To increase power, use 11/16" wrench to turn power adjustment nut clockwise. To decrease power, turn nut counter clockwise. DO NOT use a power drill or driver to turn adjustment nut. This will damage closer and void warranty. Closing Speed Controls Figure 2 Standard Delayed Action 2B Closing Cycle Closing Cycle

Closing Speed Controls Figure 3 "L" (Latch) L" (Latch) "S/D" (Sweep) 'S" (Sweep) 'S/D" (Delayed Action) Standard Closer Delayed Action Closer Slow Do not force valves 1/8" All Valves counter-clockwise out Hex Key, of closer body or a fluid leak will occur.

Opening Door Control (Figure 4.)

• Backcheck ("B") valve controls the hydraulic resistance to door opening. NEVER close this valve completely – it is not to provide a positive stop.
• Backcheck position ("P") valve controls the door angle where backcheck cushioning starts. Valve normally closed.

Nortor

assa abloy ASSA ABLOY, the global leader in door opening solutions 3000 Highway 74 East • Monroe, NC 28112

Tel: (877)-974-2255 • Fax: (800)-338-0965