FULTON PulseHW Series - Linkage Adjustment for Pulse Modulated Boilers

Fulton Heating Solutions, Inc. -- PHW Manual -- 2010-0713
Page 67
Worksheets for Siemens RWF40 Temperature Controller Standard Program
Display Paramete
r
V
endor
Setting
Fulton
Setting
Customer
Setting
Parameter Level
AL Limit value of limit comparator
b
,c
0 70 (variable)
HYSt
Switching differential for
limit comparator
b,c
1 4 (variable)
Pb.1 Proportional band
c
10 10
dt Derivative band
c
80 10
rt Reset time 350 40
db Contact spacing
c
1 0
tt Actuator operating time 15 s 0
HYS1 Switch-on level burner/stage II
c
-5 0
HYS2 Switch-off level stage II
c
3 0
HYS3 Upper switch-off level
c
5 10
q Response threshold 0 0.0
H Heating curve slope 1.0 1.8 (variable)
P Parallel shift
c
0 20 (variable)
Process Data
SP1 Setpoint 1
a
0 ---
SP2 Setpoint 2 (option)
a
0 ---
dsp Digital Setpoint Shift 0 ---
TA Outside Temperature --- Actual outdoor temperature
SP.E Pre-definition of external setpoint --- ---
1. Linkage Adjustment for Pulse Modulated Boilers
a) This instruction covers the adjustment of the linkage arms and rods between the
modulation (mod) motor and gas butterfly valve and also between the mod motor and
exhaust butterfly valve.
b) Prior to Start-Up
1. With the boiler off, both the gas and exhaust butterfly valves will be in the closed
position.
c) Setting High Fire
1. When the boiler is energized the mod motor will be driven to High Fire driving the
gas and exhaust butterfly valves to the open position.
2. At High Fire the slot in the shaft of the mod motor should be horizontal in
orientation.
3. At this point it is important to note that the mod motor and gas butterfly valve
linkage arms are as close to parallel as possible. Also note that the mod motor
and exhaust butterfly valve linkage arms should be parallel.
4. Location of the lock nuts on the linkage rods is not important.
d) Linkage Relationships