Hatco FR2 Series manual Deliming Instructions, Maintenance, WEEKLY See Figure

MAINTENANCE

WEEKLY (See Figure 8)

1.Turn power switch to the OFF position.

2.Drain holding vessel to discharge visible water and debris.

3.Wipe visible deposits from the sink or tank.

4.Remove clean-out caps (2- or 3-element units only).

5.Inspect for lime and sediment build-up at the sump drain outlet and heating element chamber outlets (2 or 3 element units only have heating element chamber outlets).

6.Remove any visible lime sediment or debris deposits from the outlets using the cleaning brush supplied with the unit, Hatco part number 03.40.060.00.

To remove, insert brush into the clean-out and sump drain outlets and use a scrubbing motion until clean.

7.Remove brush and flush clean water through the chambers until discharge is clear.

8.Reinstall clean-out caps removed in step 4.

9.Close all drains and fill with water before restarting.

DELIMING INSTRUCTIONS

CAUTION

Inspect weekly for lime buildup inside unit. Excessive amounts can affect unit performance and reduce the operating life of the unit.

NOTE: Product failure caused by liming or sediment buildup is not covered under warranty.

CAUTION

To avoid any damage to the heater unit use only delimers that are non-corrosive to aluminum, brass and stainless steel. Damage caused by corrosive material

or solutions is not covered under warranty.

The amount of lime and mineral content

in the water and how often the unit is operated will dictate how often the unit needs to be delimed.

Units supplied with water that contains high lime and mineral content may require deliming on a daily basis.

NOTE: The delimer used should be a safe, non-toxic, non-corrosive solution. Follow the delimer’s instructions.

In order to dissolve water scale, lime and rust deposits from the heating chamber, thermostat probes and interior surfaces of the unit, perform the following procedure:

1.Disconnect power supply to heater at breaker and turn power switch to OFF position.

2.Connect one end of a drain hose onto the sump drain outlet with the other end in a bucket

or open site drain in a manner according to local plumbing codes.

3.Open sump drain valve and drain all water.

4.When draining is finished, close sump drain valve.

5.Slowly add delimer and water mixture into heat tank through sink strainer assemblies. Allow the unit to stand with the mixture

in the reservoir for the recommended period of time.

NOTE: The time required will vary depending on the solution used and amount of deposits in the reservoir.

Form No. FR2M-0604 10