Lead lag master status - hydronic only, R7910a or r7911 diagnostics – Honeywell Local Operator Interface S7999B User Manual

Page 44

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S7999B, S7999C SOLA LOCAL OPERATOR INTERFACE

65-0303—05

44

Fig. 89. Lead Lag Slave Status menu.

Lead Lag Master Status - Hydronic
Only

Table 56 shows the status page data for Lead Lag Master.

Fig. 90. Lead Lag Master Status menu.

R7910A OR R7911
DIAGNOSTICS

The diagnostic page displays analog and digital I/O status of

the control. The digital I/O data is displayed as LEDs that are

either on (green) or off (red) (see Fig. 91–93). Not all digital I/O

can be displayed at the same time on the page, so a horizontal

scroll bar is used to move the view left and right to show all

digital I/O data.

Fig. 91. Diagnostic digital I/O page (left).

Table 56. Lead Lag Master.

Data

Comment

Master enabled

Enabled

Status

normal

Demand source

Lead lag slave

Active Service

None

Off setpoint

160 °F (71 °C)

Setpoint

150 °F (66 °C)

On setpoint

145 °F (63 °C)

operating

temperature

150 °F (66 °C)

Sensor state

normal

Sensor temperature

150 °F (66 °C)

Slave firing

no

Stager state

idle

Stager timer
CH demand
CH frost demand

no

DHW frost demand

no

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