INSTALLATION AND OPERATION INSTRUCTIONS
4-4
TANKLESS WATER HEATER 199
4.1.14 Fan installation instructions
1.
Place the fan gasket on the outlet of the fan housing. The gasket has 2
locator pins to ensure the gasket does not move during installation.
2.
Reinstall the check valve in the burner housing and attach the fan to the
burner housing with the 2 hex nuts. Tighten the 2 hex nuts with a wrench.
3.
Insert the orifice and O-ring between the gas valve outlet and the gas line to
the fan. Tighten the gas valve union nut with a wrench. Ensure that the gas
valve inlet (lower) nut is tight.
4.
Connect the electrical plug to the fan.
5.
Restore the gas supply to the unit, and test the gas valve inlet for gas leaks.
6.
Restore the power to the unit, and create a call for hot water.
7.
Check for leaks at the gas valve outlet and the connection between the fan
and the burner housing.
8.
Install the cover to the unit.
9.
Return the unit to normal operation.
4.1.15 Cleaning the Condensate Trap
1.
Turn off the power and the gas supply to the unit.
2.
Remove the front cover, and allow the unit to cool down.
3.
Remove the flexible hose (1) from the condensate trap and drain.
4.
Detach the condensate trap cup (2) by rotating it to the left (counter-
clockwise) and then pulling it downwards.
5.
Empty the condensate trap cup (3).
6.
Detach the condensate trap base (4) by pressing the three securing clips in,
while simultaneously pushing the condensate trap base downwards (4).
7.
Remove the circlip and the plastic ball from the condensate trap base (5)
2
1
1
1
1
2
3
4
DANGER
When servicing or replacing
the fan, you must transfer the
venturi from the old fan to the
new fan.
Failure to relocate the venturi
to the new fan may cause
an immediately hazardous
situation which must be
avoided in order to prevent
serious injury or death.