Maintenance; General; Maintenance Reminder Function; Service Intervals - Lochinvar TTW Series Installation, Commissioning And Maintenance Instructions

23.0 MAINTENANCE

23.1

GENERAL

To ensure the TTW water heater continues to perform safely and efficiently regular maintenance must be carried out at least every 12 months.
Maintenance and inspection of the water heater should be carried out at the following occasions:

When a number of similar error codes and/or lock-outs appear.

At least every twelve months maintenance must be done to ensure safe and efficient operation.
Damage caused by lack of maintenance will not be covered under warranty
23.2

MAINTENANCE REMINDER FUNCTION.

This function/message is standard not activated, but can be activated/set by a trained engineer. This function does not
overrule the need for annual maintenance. The end user is always responsible for arranging annual maintenance.
23.3

SERVICE INTERVALS

The normal service interval for the water heater is once a year. Every year the water heater should be cleaned and checked, according to the
maintenance procedures. If there is doubt whether the water heater is operating with the correct water and/or combustion air quality, it is
advised that a first check is executed after half a year. This will determine the frequency of future service intervals. The maximum interval
between two services is 12 months.
Inspection and maintenance must be carried out at least every 12 months to ensure safe and efficient operation of the
water heater.
23.4 INSPECTION & MAINTENANCE
Inspection, maintenance and the replacement of water heater parts should only be done by a skilled service engineer. Apart from the
maintenance proceedings, it is advised to have a log chart for every water heater that describes the following aspects:

Serial number.

Date and time of maintenance.

Name of maintenance engineer.

Which parts were exchanged during maintenance

Which settings (software) were changed during maintenance.

Special remarks / findings.

Future aspects that need extra attention.

Additional aspects: measurement reports, complaints by the (end)-user, lock-out codes, etc.
During maintenance, the following parts and aspects of the water heater should be checked and inspected.
NOTICE: Before starting to work on the water heater:
Switch off the electrical power to the water heater (service switch and/or unplug water heater).
Close the gas valve to block gas supply to the water heater.
23.4.1

CUSTOMER COMMENTS

Comments and remarks from the customer should be analysed and used to find possible causes for any occurring problems and complaints.
23.4.2

SERVICE HISTORY

The operational and fault history (total amount and since the last service) of the water heater can be retrieved with the help of a computer,
correct software and an interface cable. This information can be used to specify the maintenance and service proceedings in relation to the
water heater (parts).
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