Lochinvar 80 - 285 User Manual download pdf (Page 62)

Installation & Operation Manual

11 Operating information

Sequence of operation (continued)

OPERATION DISPLAY

8. If the DHW thermostat remains on for more than 30 minutes, and

the space heating call for heat is also on, then the control will turn

on the boiler pump, turn off the DHW pump after 2 seconds, and

resume modulating based on the space heating set point. As long

as both the space heating and DHW calls for heat remain active,

the control will switch back and forth between the two modes until

one of them is satisfied.

BLR: SH 41% RATE

OUT: 123.0F(129)

9. Once both calls for heat are satisfied, the control will turn off the

burner. The blower will remain on for the 10 second postpurge

cycle. Any pumps that are running will continue to run for their

respective pump delay times, then turn off.

BLR: POSTPURGE

OUT: 127.4F(129)

10. Boiler pump off, system pump continues its delay if longer.

BLR: Standby

OUT: 124.7F(129)

11. System pump off.

BLR: Standby

OUT: 122.9F(129)

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Lochinvar 80 - 285 User Manual Page 62