Programmers prevent tenants ignoring servicing of gas-fired heating systems

Central-heating systems that are past their service interval can be prevented from operating by two new programmers from Honeywell
Two heating controllers from Honeywell ensure that tenants take action to have gas-fired central-heating systems serviced, a valuable feature for landlords of rented accommodation. The service-interval function for the ST9100S and ST9400S controllers can be set to indicate when the heating system requires servicing. An advance-warning period can be set, during which the display flashes a reminder of the service deadline. There are several options for how the controller will operate if a deadline passes without servicing having taken place. The display can also show a telephone number to help the tenant book a service. The display can show ‘service due xx days’, alternating with the normal display for up to 28 days. The programmer is reset by the heating contractor when the system is checked and serviced. The landlord can select from three options for how the controller should operate if the system is not serviced. • Reverting to normal use, with ‘service due’ flashing. • The heating system not operating, with the display flashing ‘service due’. • The heating and hot water being switched on for an hour at a time for up to 99 times as preset. The display will also flash ‘service due’. These programmers fit on an industry-standard backplate and are direct plug-in replacements for existing Honeywell ST6000 models and many other programmers and timers. The clock date and time are preset, and an automatic feature adjusts the clock each spring and autumn.
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