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Operating information, A(boiler status bar), B(call for heat indicators) – Lochinvar Kight XL 400-801 User Manual

Page 46

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46

8

Operating information

Status Display Screens

Section

Display

Description

A

(Boiler Status

Bar)

STANDBY

The unit has not received a call for heat from a remote thermostat nor
has it received a call for heat from a DHW thermostat.

START

The unit has begun a burn cycle and is checking all safety circuits.

PREPURGE

The unit has initiated a prepurge period on a call for heat.

IGNITION

The unit has begun a spark period to ignite the main burner.

The unit has fi red and is running at the displayed percentage.

POSTPURGE

The call for heat has been satisfi ed and the unit runs the fan for an
additional postpurge period to clear the combustion chamber and
vent system of residual fl ue products.

SHUTDOWN

The unit has been placed in the OFF position.

The controlled temperature has exceeded its set point and its offset.

BLOCKED

The unit has detected a condition that has temporarily interrupted
the current call for heat.

B

(Call for Heat

Indicators)

Room Thermostat 1 has a call for heat.

Room Thermostat 2 has a call for heat.

Room Thermostat 3 has a call for heat.

The tank thermostat or sensor has a call for heat.

Indicates which room thermostat demand shows priority.

The unit is being controlled by a 0 - 10V BMS signal.

The member unit is supplying heat while in Cascade Mode.

A

C

D

B

F

E

(BOILER

STATUS)

(OPERATIONAL

INFORMATION)

(LEFT SELECT

KEY)

(RIGHT SELECT KEY)

(NAVIGATION DIAL)

(CALL FOR

HEAT)

Figure 8-2 Status Display Screen

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Outdoor Knight XL Installation & Operation

Manual