TriangleTube Prestige Trimax 399 Installation Instructions Manual

Prestige Trimax 399
Ignition Kit - Installation Instructions
1.1. Applicability
Prestige boilers with "PT"-prefixed serial number, as
indicated on data plate.
Kit Part Number
PTRKIT303
Table 1 - PT Ignition Kit Numbers
1.2. Purpose
This kit (see Fig. 3 for details) replaces the existing TriMax
control module, the igniter and wiring, the internal
venting tube and the heat exchanger insulation.
1.3. Initial tasks
Confirm the replacement kit is appropriate for the boiler
to be worked on (see Table 1).
Write down all the appliance settings, including the
cascade settings (if the boiler is in a cascade) for reference
before bringing any change to the appliance. A reference
table is provided on the last page of this document.
1.4. Boiler preparation

1.4.1 Required Tools and Material

• Screwdriver, flat head
• Screwdriver, cross head
• 10 mm socket/wrench
• Wrench, Torx 20
• Flue gas analyzer

1.4.2 Preparation Procedure

1. Turn the boiler off by pressing the on/off power
switch.
2. Allow boiler to cool down.
3. Disconnect electrical power at the external electric box
DANGER
• Avoid electrical shock by disconnecting the
electrical supply prior to performing any operation
on the internal parts of the boiler.
Revision Date: 1/28/2020
Model
PT 399
DANGER
• Before any operation on the internal components
of the appliance, allow the appliance to cool
down to room temperature. Some components
can be very hot.
• Failure to comply will result in substantial property
damage, serious injury, or death.
4. Remove boiler front panel as follows:
• Remove the thumb screw along the upper
edge of the unit.
• Lift the panel up and tilt back slightly to remove
the front panel.
5. Slide left and right tabs of control panel inward and
lower control panel. See Fig. 1
6. Pull the retaining tabs on top of the rear cover to
remove the rear control box cover. See Fig. 2.
Œ

Fig. 1 - Opening and Lowering the Control Panel
Fig. 2 - Opening the Retaining Tabs
2020-33 Prestige Trimax 399 Ignition Kit
Œ
Retaining tabs
1