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SlimFit
®
Series 2
DIAGNOSTICS menu
Figure 69
DIAGNOSTICS menu details (see Figure 58, page 66 for access information)
Menu/Item
Temperatures
Current operating status of the boiler. Prepurge, Ignition, Name of the system Type being satisfied, post purge, Warm
Status
Weather Shut down, Trouble
Boiler Out1
Temperature of the first 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
Temperature of the first sensing element of the boiler's heat exchanger block outlet sensor
Heat Exchanger 1:
Temperature of the boiler's heat exchanger inlet sensor
Boiler In
Temperature of the system water after the boiler loop
System Supply
System Return
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
From Sensor
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
Flue1
Flue2
Temperature of the second sensing element of the boiler's flue gas sensor
Outdoor
Temperature of the remote outdoor air temperature sensor
Inputs
Current operating status of the boiler. Prepurge, Ignition, Name of the system Type being satisfied, post purge, Warm
Status
Weather Shut down, Trouble
Call for heat status on Input 1 (Input 1 can be TT1 or 0-10VDC input)
Input 1
Call for heat status on Input 2
Input 2
Call for heat status on Input 3
Input 3
0 –10V Input
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/Auto Limit
External manual limit on low voltage terminal strip (on left)
Limit device (inside boiler jacket) that will shut off the boiler if proper air flow is not detected, or is detected when it
Min Air Flow Switch
should not be (on right)
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 flue pressure becomes too high
Gas P-Switch
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.)
Closure Switch
Feedback from blower sensor
Blower Speed
Number indicating the presence and quality of the flame used to shut down or boost the boiler
Flame Signal
Outputs
Current operating status of the boiler. Prepurge, Ignition, Name of the system Type being satisfied, post purge, Warm
Status
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 4
Boiler's circulator
Control's signal controlling the blower speed
Blower Signal
Additional heat demand contact status
Additional Heat Demand
Alarm contact status
Alarm
0 –10V Output
Voltage being output, by P16, pins 1 & 2
Part number 550-100-561/0224
commercial condensing gas
(continued)
-
— Boiler Manual
fired water boiler
Comment
75
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