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NO.2

NO.1

NO.3

90°

NO.3 Back Check

NO.1 Closing

NO.2 Latching

Power Adjustment

Arm is fitted in pinion with hex head screws.

1

2

3

4

5

Using the templates provided, mark and drill pilot 

holes into the door and frame.

Attach the armset to the mechanism ensuring 

the pre-loading requirement has been completed.

Using the templates provided, fix the mechanism to the door 

as well as the armset and any necessary brackets.

Backcheck Adjustment
To increase the backcheck action, turn the valve clockwise. To decrease, or to turn 
off backcheck , turn the valve counter clockwise.
Adjust the Closing & Latching speed.
1.The door closer can control two different speeds.
2.The No.1 speed-adjusting valve controls  the Closing speed, and the No.2 speed 
   adjusting valve controls the Latching speed.

Operate door closer in order to check operation.

Regular Fixing

Installation and Maintenance Instructions:

Maintenance

1.Once the unit has been correctly 

fitted it is recommended that 
periodic checks (every six 
months) are carried out to ensure 
all fixings are tight and the door 
closes freely and positively into 
the frame, without slamming.

2.A light oil lubricant (non-graphite) 

should be applied to the moving 
joints and exposed pivot points.

After Installation

1.When the closer operates to close 

the door from its maximum opening 
position, it should ensure the lock 
latchbolt and any seals are overcome 
and the leaf returned into its frame.

2.When the door is slightly open and 

the latch bolt resting against the 
strike, release the door to ensure the 
leaf fully closes into its frame.

Warning

1.Please note the minimum power size requirement for fire / smoke 

door assemblies is 3 as required by Approved Document B.

2.Do not install mechanical hold open devices on fire / smoke door 

assemblies.

3.Take care not to exceed the maximum opening angle as detailed 

above.

4.Care and attention must be taken when adjusting any of the units 

control valves to avoid damage through over adjustment.

5.All Synergy Door Closer units are sealed for life and the internal 

components assembled under high load, therefore, tampering 
with the mechanism is to be strictly avoided.

Installation Instructions: Please refer to actual size template for exact fitting dimensions 

Pre-Loading of Arm

For the unit to provide the optimum performance and overcome 
any resistance upon closing it is recommended that the armset 
is “pre-loaded” To pre-load, reposition the fixing angle of the 
arm onto the mechanism so that the end of the closing cycle 
would be past the stop position, as indicated below.

Adjustment Details

This unit is a power adjustable mechanism. Power / force adjustment is carried out by a single 
adjustment valve in the end of the mechanism. The unit is pre-set in the factory at EN size 3. 
Please see table below for adjustment details for each power size.
The following adjustment valves have a maximum adjustment of 1 full turn per valve. 

PLEASE 

NOTE

 over adjustment will damage the mechanism and/or the performance of the door closer and 

invalidate its guarantee.
Adjust Backcheck (valve #3) before 
adjusting the Closing Speed (valve #1) and 
Latching Action (valve #2).

90°

90°

Before

After

ISSUE 01:03/19

10803 ZINS-FA1289-3S

www.synergyhardware.co.uk

Fixing Instructions for

S900 Series 

Door Closer 

Power Adjustable EN 2-6

APPROVED

PRODUCT

CF5294

CPR

AD5330

1121

17

BS EN1154:1997+ A1:2002

4 8 62 1 1 3

www.synergyhardware.co.uk

Fixing in Fig.1

Force Max. door

width

Max. door

weight

Max. 

opening

angle

Number

of turns

Direction

FACTORY PRE-SET

0

0~+3

+3~+6

+6~+9

+9~+12

Clockwise

Clockwise

Clockwise

180°

180°

180°

180°

180°

850mm

950mm

1100mm

1250mm

1400mm

40kg

60kg

80kg

100kg

120kg

2

3

4

5

6

+

-

SW5

SLOW

FAST

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