Maintenance
(Continued)
CHANGING THE INJECTORS
Figure (1). Remove front burner wire
from socket on Brahma Control Module.
Figure (2). Lift out front burner assembly,
front and rear injectors are now accessible.
Figure (3). Unbolt the rear injector. Note:
Rear injector can be unbolted with rear
burner still in place.
Figure (4). Replace the rear injector with
an appropriate size. (Refer to name
plate on page 3.)
Figure (5). Unbolt the front injector and
replace with appropriate size. (Refer to
name plate on page 3.)
Figure (1). Turn screw in test point anti-
clockwise.
ADJUSTING GAS PRESSURE
Although your Jindara heater has been fully factory preset and adjusted, it may need to be
readjusted upon installation. Refer to 10 point checklist. There will also be some situations
where some service has to be done and gas pressure may need to be readjusted as follows.
1. Remove clear plastic cap over pressure adjustment nut and screw. Refer figures 1,2 & 3 for
Manometer attachment.
2. To adjust Max pressure: Allow heater to ramp up to high (approx 90 sec after ignition. Using
10mm spanner and holding screw stationary with No. 2 Philips head screwdriver, turn nut
clockwise to increase pressure and anti-clockwise to decrease pressure. (Refer figure 4)
3. To adjust Min pressure: Disconnect one of the wires attached to blue solenoid. Keeping nut
stationary, turn screw clockwise to increase pressure and anti-clockwise to decrease
pressure. Refer to name plate for pressure settings. (Manual and lower fascia panel, inside)
NOTE: Carefully replace plastic cap to its original location to ensure correct operation of the
modulator.
Figure (3). Purge gas line; turn screw
anti-clockwise to open.
Figure (2). Attach manometer to test
point.
Figure (4). Turn bolt for low pressure, nut
for high pressure. Refer above.
Derwent High Efficiency Gas Log Fire
27
