MGN 2800N HP 3
Start Rate Gas Governor ............................................................................................................................................16
B
URNER
P
RE
-
COMMISSIONING
.................................................................................................................................17
B
URNER
C
OMMISSIONING
.........................................................................................................................................17
Check For Valve Closure (Burners Without Valve Proving System) ..........................................................................17
Gas Supply Pressure ..................................................................................................................................................18
E
STABLISHING
M
AIN
F
LAME
.....................................................................................................................................18
General Notes .............................................................................................................................................................18
Landis & Staefa SKP75 ..............................................................................................................................................18
B
URNER
S
TART
G
AS
R
ATE
.......................................................................................................................................19
Check Flame Signal....................................................................................................................................................19
Air Pressure Switch Setting ........................................................................................................................................19
High Gas Pressure Switch Setting..............................................................................................................................20
Low Gas Pressure Switch Setting ..............................................................................................................................20
F
INAL
C
HECK
.............................................................................................................................................................20
RWF40
M
ODULATING
C
ONTROL
..............................................................................................................................20
Basic display ...............................................................................................................................................................20
To change the working set point. ................................................................................................................................20
To enter a new parameter...........................................................................................................................................20
R
OUTINE
S
AFETY
C
HECKS
............................................................................................................................................22
Combustion Air ...........................................................................................................................................................22
Flame Detector ...........................................................................................................................................................22
Valve Proving System.................................................................................................................................................22
R
OUTINE
M
AINTENANCE
...........................................................................................................................................22
Combustion Air Fan ....................................................................................................................................................22
Inner Assembly ...........................................................................................................................................................22
Air Diffuser And Gas Nozzle .......................................................................................................................................22
Ignition Electrode ........................................................................................................................................................22
F
AULT
F
INDING
..........................................................................................................................................................23
Burner Motor Fails To Start.........................................................................................................................................23
Starting Flame Failure Without Ignition.......................................................................................................................23
Starting Flame Failure Without Flame ........................................................................................................................23
Burner Fails To Establish Main Flame........................................................................................................................24
Burner Motor Only Runs Continuously .......................................................................................................................24
Replacement Of Air/Gas Ratio Controller...................................................................................................................24
Incorrect Rotation Of Burner Motor.............................................................................................................................24
Motor & Fan - Removal...............................................................................................................................................24
S
ERVICE
&
R
EPLACEMENT
.......................................................................................................................................24
B
URNER
H
EAD
D
ETAILS
............................................................................................................................................25
B
URNER
P
ERFORMANCE
C
URVES
............................................................................................................................26
B
URNER
S
ERVICE
R
ECORD
......................................................................................................................................28
I
MPORTANT
-
S
AFETY
It is essential that the following instructions and adjustments are carried out by qualified engineers that are
experienced in blown gas burner commissioning. In the U.K. it is a legal requirement that anyone working on
gas installation should be ‘Gas Safe Registered’.
The manufacturer cannot be held responsible for any consequential damage, loss or personal injury as a result
of failure to follow these instructions, or as a result of misuse. Your attention is drawn to the
Emergency
Instructions
on Page 16.
E
UROPEAN
B
OILER
E
FFICIENCY
D
IRECTIVE
(B.E.D.)
All burners and boiler bodies marketed separately should comply with EN676 (gas burners) and EN303
(Heating Boilers).
Burner adjustments must be made in accordance with boiler manufacturers’ instructions, and these must
include flue gas temperatures, average water temperature, and CO
2
or O
2
concentration
.