Prestige SOLO 399 Boiler
Natural to Propane Instructions
5
2. If the combustion levels during high fire is outside
the recommended combustion settings in Table 2,
adjust the THROTTLE SCREW (see Fig. 3)
using a flat-blade screwdriver.
The throttle screw is highly sensitive and requires
the use of a combustion analyzer for adjustment.
An adjustment as small as an 1/8 of a turn can pro-
duce a large change in combustion levels.
3. Once the combustion level is set at high fire, man-
ually place the boiler into low fire mode by press-
ing the “MODE” button with “-” button
simultaneously on the control display while in the
Standby (STBY) mode.
The control panel will display a L followed by the
current boiler temperature when placed into low
fire test mode.
4. If the combustion levels (O2 or CO2) during low
fire is not /- 0.2 of the combustion level
measured at high fire, remove the offset cover
screw and adjust the plastic OFFSET SCREW
(see Fig 3) using a T-40 Torx wrench as follows:
Counter-clockwise adjustment of the OFFSET
SCREW at Low Fire:
O2 increases and CO2 decreases
Clockwise adjustment of the OFFSET SCREW at
Low Fire:
O2 decreases and CO2 increases
5. Press the “+” and “-” buttons simultaneously to
shutdown the burner.
Trimax Control Procedure (TRIMAX)
1. Press the round INSTALLER button. See Fig. 4.
2. Enter the installer access code “054” by using the
LEFT
and
RIGHT
buttons to select a digit and
the
UP
and
DOWN
buttons to change the digit.
Press the
OK
button to enter the access code.
3. Press the
RIGHT
button to highlight the Manual
Operation icon
then press the
OK
button.
4. Press the OK button while the FAN icon is high-
lighted to manually fire the burner and power the
CH circulator.
An adequate CH load must be present to dissipate
the heat generated during the combustion test. If
an adequate CH load is not available, an indirect
water heater can be used to dissipate the heat by
WARNING
WARNING
NOTICE
Installer
Button
Fig. 4: Trimax Navigation Buttons
Manual Operation
Released
Off
Off
Off
CH
CH1
FAN
DHW
SYS
CH2
