AIRREX AH-200 Service Kit User Manual

: June 4, 2024
: Airrex

Table of Contents

REX NORDIC SERVICE
- WHY OUR SERVICE?
INSTALLATION INSTRUCTIONS
REPLACING THE FILTER, NOZZLE AND THE GASKET KIT
SOOTY AIR NOZZLE?
Customer Support:
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

AIRREX AH-200 Service Kit User Manual

REX NORDIC SERVICE

We are the service agent for Airrex and Rexener products. Trained by the manufacturer, our service personnel maintain your devices professionally. We use well-equipped service vans which are easy to order on-site, wherever you need

WHY OUR SERVICE?

We are the importer of and official service shop for Airrex and Rexener products.
We only use original spare parts.
All spare parts for devices are available in our warehouse.
A well-trained, professional and friendly maintenance staff.
We provide quick and reliable maintenance service.
Our service comes to your machine – it is that easy

INSTALLATION INSTRUCTIONS

Start with removing the protective plate (if your heater has one).
Disconnect the power cables of the burner. Write down, which cables go where
Disconnect the fuel hoses from the pump (2 pcs) and solenoid (1 pc)
Remove the burner’s fastening nuts on both sides (2 pcs) and remove the burner
Remove the grommet with a screwdriver and lift it up.
The filter will rise with the copper pipe. Drain it for a moment in the opening to ensure that fuel doesn’t drip all over the machine room

REPLACING THE FILTER, NOZZLE AND THE GASKET KIT

Detach the filter with a 14 mm spanner and turn the nut anticlockwise.
Once the nut is disconnected from the filter, carefully pull the pipe out of the filter and ensure that both O-rings are connected to the pipe.
Attach the copper pipe to the new filter with the O-rings, and tighten the nut while carefully holding the top of the filter. Insert the fuel filter back into the tank and connect the hoses. Please note that the shortest hose goes to the solenoid, and the hose with the clip goes to the fuel pump inlet pipe (longest pipe of the pump).
Open the nozzle damper screws (4 pcs).
Lift the damper out to access the igniter screw and air flow regulator screw.
First remove the air flow regulator screw and loosen the igniter out of the nozzle frame
Then remove the air flow regulator carefully by lifting it up to reveal the nozzle.
Remove the nozzle with a 16 mm and 19 mm spanner.
Check the nozzle chamber for impurities and clean it before installing the new nozzle.
Finger-tighten the new nozzle into place, and finish by tightening it firmly with spanners.
After this, clean the air flow regulator and damper and install them into place

.First place the air flow regulator on the nozzle frame. Then tighten the igniter screw, adjust the air flow regulator to the correct position in the centre of the igniter and tighten the screw.
Put the damper in its place and make sure that the guiding groove is in the correct position. Tighten the screws. The burner is now ready to be connected to the heater.
Remove the gaskets (2 pcs) from the heating pipe and install new ones in the same order. The grey gasket goes first followed by the white/chrome gasket, ensuring that the chrome surface is against the burner.
Install the burner and tighten the screws. Before tightening, check the position of the burner to ensure that it is in the centre of the heating pipe by confirming that the fastening nuts are symmetrically in the appropriate grooves. (See images on phase 3)
Install the fuel hose and power cables. (See images of work phases 1–2)
Connect the power cable to the power socket and press the power switch to activate the heater
Remember to bleed the burner to discharge any air from the system. (Bleeding instructions can be found in the manual.)
Test run the device for at least 10 min and ensure that everything is in order. The heater is ready for use.

SOOTY AIR NOZZLE?

If the air nozzle is extremely sooty, the burner has been affected by a lack of ventilation. Check the manual to see how ventilation should be arranged and rectify the situation. The air nozzle must also be replaced!