Weil-McLain SVF 1500 Manual page 81

SVF
™
Series 1
Commercial Condensing Gas-Fired Water Boiler — Boiler Manual
DIAGNOSTICS menu
Figure 74
Temperatures
Current operating status of the boiler. Prepurge, Ignition, Name of the system Type being satisfied, post purge,
Warm Weather Shut down, Trouble
Temperature of the first sensing element of the boiler's heat exchanger outlet sensor
Temperature of the second sensing element of the boiler's heat exchanger outlet sensor
Temperature of the boiler's heat exchanger inlet sensor
Temperature of the system water after the boiler loop
Temperature of the system water returning to the boiler loop
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.
Temperature of the first sensing element of the boiler's flue gas sensor
Temperature of the second sensing element of the boiler's flue gas sensor
Temperature of the remote outdoor air temperature sensor
Current operating status of the boiler. Prepurge, Ignition, Name of the system Type being satisfied, post purge,
Warm Weather Shut down, Trouble
Call for heat status on Input 1 (Input 1 can be TT1 or 0-10VDC input)
Call for heat status on Input 2
Call for heat status on Input 3
Voltage input for target adjust or modulation for single boiler
For Multiple Boiler Networks. Shows if current control is connected to Master boiler
For Multiple Boiler Networks. Shows if the Master boiler is calling this boiler heat demand
External manual limit on low voltage terminal strip (on left)
Low water cutoff device (inside boiler jacket)
Limit device (inside boiler jacket) that will shut off the boiler if flue pressure becomes too high
Limit device that will shut off the boiler if gas pressure gets too high or low
P7 jumper circuit closed or open (flow switch, CAD, etc.)
Feedback from blower sensor
Number indicating the presence and quality of the flame used to shut down or boost the boiler
Outputs
Current operating status of the boiler. Prepurge, Ignition, Name of the system Type being satisfied, post purge,
Warm Weather Shut down, Trouble
Control's gas valve circuit status
Control's circulator 1 relay status
Control's circulator 2 relay status
Control's circulator 3 relay status
Boiler's circulator
Control's signal controlling the blower speed
Additional heat demand contact status
Alarm contact status
Voltage being output, by P16, pins 1 & 2
Part number 550-100-250/0819
(continued)
menu details (see Figure 63, page 72 for access information)
Comment
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