GLOW T180 - 5. Maintenance (Authorized Personnel); 5.1 General Warnings; 5.2 Maintenance; 5.3 De-scaling and flushing

Glow T180
Tankless Condensing Water Heater
50
5.3 De-scaling and ushing
CAUTION! Before unthreading the hose
caps for any reason, make sure the drain valves
are CLOSED. Unthread slowly, to allow any built-
up pressure to disperse. After removing the cap,
inspect the cap’s gasket for damage. Replace as
necessary.
Glow T180
WASHING
MACHINE
HOSES
PUMP
5 GALLON BUCKET
OVERFLOW TUBE
DOMESTIC HOT
WATER OUT
DOMESTIC COLD
WATER IN
ROTATE
CLOCKWISE
FOR SERVICE
WHITE VINEGAR
MENU
UP
ENTER
DOWN
RESET
5.2 Maintenance
Δ Periodic examination of the entire venting
system is recommended.
Δ Ensure all venting connections/joints are tight
and in good condition where visible.
Δ Remove the burner along with the motor and
gas valve as one complete assembly.
Δ When doing so, visually inspect the burner
and components for signs of ware or irregular
characteristics. This would include the ignition
and ionization.
Δ Reassemble the complete burner assembly.
Δ Visually inspect the burner ame. The ame
must burn with a clear blue, stable ame when
in operation.
Δ All electric motors are permanently lubricated
and do not need oiling.
Δ Verify proper operation after any servicing.
Δ Wipe the outside surface with a wet cloth; then
dry the surface.
Δ Vent termination should be inspected for
blockage during maintenance checks.
Δ Check for blockage at the drain pipe and
condensate trap.
Δ Check for water leaks from the equipment and
piping.
Δ Warranty will not be offered if recommended
maintenance is not followed.
Δ All maintenance operations must be carried out
by professionally qualied personnel, authorized
by Glow Brand.
Δ The frequency of water heater maintenance is
recommended to be carried out once a year.
Δ In order to guarantee the long life of the
appliance and in accordance with the current
gas safety regulations, only use original OEM
parts.
Δ Before carrying out any type of maintenance
operation, disconnect the appliance from the
electrical supply and shut off the gas valve.
Δ Warranty will not be offered if recommended
maintenance is not followed.
Δ Remove and clean any deposits from the burner.
Δ Check that the seal of the room-sealed chamber
is undamaged and positioned correctly.
Δ Check the heat exchanger and clean if
necessary.
5. Maintenance (Authorized Personnel)
5.1 General Warnings
CAUTION! Before pressurizing
the system for service, ALWAYS make
sure the drain valves of both HOT and
COLD isolation valve assemblies are
placed in the CLOSED position, where
the drain valves’ stem slot is positioned
perpendicular to the drain valves’ body.
Remove the hose caps and visually
inspect the drain valve outlets to verify
that the balls are in the closed position.
You should see the chrome-plated face
of a closed ball. You should NOT be able
to see into the body of the drain valve.
Replace the hose caps and hand-tighten
only.
Figure 5.1 - Flushing the water heater