Harry Taylor HT2000, Manual

Page: 22 / 48

22
IMPORTANT
Adjustments should
be made by qualified
persons only.
If the appliance
m a n u f a c t u r e r
supplies checkout
and/or service and
m a i n t e n a n c e
instructions, carefully follow them. If such
instructions are not provided, then follow the
procedure as outlined below.
Allow time for pressure to stabilize before
making adjustments.
It is recommended that the High-Low
regulator is operated a few times to ensure
correct setting. It should be prevented, that
High-Low regulator is exposed to
unnecessary forces because of wiring.
Cap has to be removed by putting a small
screw driver in one of the slots and lifting the
cap carefully while at the same time
supporting the cap opposite to the screw
driver.
Maximum pressure setting must first be
adjusted then minimum pressure setting
can be adjusted.
Any adjustment of maximum pressure
setting influences minimum pressure
setting.
Never adjust the maximum setting above
the range specified
Adjusting maximum pressure setting
•
Connect a suitable pressure gauge to
pipe line or to outlet pressure tap of gas
control concerned, to measure burner
pressure (measuring point must be as
near to burner as possible).
•
Energize High-Low regulator, set gas
control in operation and wait until an
outlet pressure is recorded on pressure
gauge.
•
Use a 8 mm wrench to turn adjustment
screw for maximum pressure setting
clockwise to increase or counter-
clockwise to decrease pressure, until
desired maximum burner pressure is
obtained.
•
Check maximum pressure setting after
several times.
Adjusting minimum pressure setting
•
Connect a suitable pressure gauge to
pipe line or to outlet pressure tap of gas
control concerned, to measure burner
pressure (measuring point must be as
near to burner as possible).
•
Disconnect electrical connection of
High-Low regulator.
•
Set gas control in operation and wait
until an outlet pressure is recorded on
the pressure gauge.
•
When minimum pressure setting needs
adjustment, then use a 3.5 mm screw
driver to turn adjustment screw for
minimum pressure setting clockwise to
increase or counter-clockwise to
decrease pressure, until desired
minimum burner pressure is obtained.
•
Wire High-Low regulator coil in circuit.
•
Check maximum pressure setting and
re-adjust if necessary. Check minimum
pressure setting again.
Adjustment of Optional
Hi-Low regulator
Cap
Adjustment screw for minimum pressure setting
Adjustment screw for maximum pressure
6.3 mm AMP terminals
Earth terminal