Weil-McLain Evergreen EVG 110, Manual

Page: 86 / 144

Figure 77
DIAGNOSTICS menu details (see Figure 66, page 70 for access information)
DIAGNOSTICS menu
(continued)
Menu/Item Comment
Temperatures
Status
Current operating status of the boiler. Prepurge, Ignition, Name of the system Type being satisfi ed, post purge, Warm Weather
Shut down, Trouble
Boiler Out1
Temperature of the fi rst sensing element of the boiler’s heat exchanger outlet sensor
Boiler Out2 Temperature of the second sensing element of the boiler’s heat exchanger outlet sensor
Boiler In Temperature of the boiler’s heat exchanger inlet sensor
System Supply Temperature of the system water after the boiler loop
System Return Temperature of the system water returning to the boiler loop
From Sensor
Displays where System Supply/Return values are being read from. Most relevant when using multiple sensors connected to the
same Master Boiler Network. When Shadow boilers are connected, this will specify which boiler it is reading.
Flue1 Temperature of the fi rst sensing element of the boiler’s fl ue gas sensor
Flue2 Temperature of the second sensing element of the boiler’s fl ue gas sensor
Outdoor Temperature of the remote outdoor air temperature sensor
Inputs
Status
Current operating status of the boiler. Prepurge, Ignition, Name of the system Type being satisfi ed, post purge, Warm Weather
Shut down, Trouble
Input 1 Call for heat status on Input 1 (Input 1 can be TT1 or 0-10VDC input)
Input 2 Call for heat status on Input 2
Input 3
Call for heat status on Input 3
0–10V Voltage input for target adjust or modulation for single boiler
Linked to Master For Multiple Boiler Networks. Shows if current control is connected to Master boiler
Demand of Master
For Multiple Boiler Networks. Shows if the Master boiler is calling this boiler heat demand
Manual Limit External manual limit on low voltage terminal strip
Auto Limit External auto limit on low voltage terminal strip
Low Wtr Cutoff Low water cutoff device (inside boiler jacket)
Air P-Switch Limit device (inside boiler jacket) that will shut off the boiler if fl ue pressure becomes too high
Closure Switch P7 jumper circuit closed or open (fl ow switch, CAD, etc.)
Blower Speed Feedback from blower sensor
Flame Signal
Number indicating the presence and quality of the fl ame used to shut down or boost the boiler
Outputs
Status
Current operating status of the boiler. Prepurge, Ignition, Name of the system Type being satisfi ed, post purge, Warm Weather
Shut down, Trouble
Gas Valve Control’s gas valve circuit status
Circulator 1
Control’s circulator 1 relay status
Circulator 2 Control’s circulator 2 relay status
Circulator 3 Control’s circulator 3 relay status
Boiler Circ Boiler’s circulator
Blower Signal Control’s signal controlling the blower speed
Additional Heat Demand
Additional heat demand contact status
Alarm Alarm contact status
Part number 550-100-191/0917
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