Instruction manual

Part number 550-100-116/0714
82
SlimFit
™
COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual
-ENU)TEM 5NITS
Low
Value
High
Value
Default Description
Changed
to
System Configuration
Temperature units
Fahrenheit or
Centigrade
Fahrenheit
This parameter determines whether temperature is represented in units
of Fahrenheit or Celsius degrees.
Anti short-cycle
time
hr mm ss 0h 0m 0s 18h 0m 0s 0h 1m 0s
Whenever the burner is turned o due to no demand the anti-short-
cycle timer is started and the burner remains in a Standby Delay
condition waiting for this time to expire. Does not apply, however, to
recycle events or DHW demand.
Burner switch ON or OFF ON
This parameter enables or disables the burner control. When it is o,
the burner will not fire.
Low fire cuto
time
Not changeable 0h 0m 0s
Burner o inhibit
time
hr mm ss 0h 0m 0s 0h 10m 0s 0h 0m 0s
Burner is forced to remain on at low fire for this amount of time before
shut-o.
Line frequency Not changeable
Auto detects frequency, accepting 48 through 63 hz
Sensor Configuration
Outdoor
temperature
source
See description S5
Configures which source to get Outdoor temperature data from: S5
sensor (terminal stripC), S10 sensor, Enviracom sensor, or Modbus
communication.
Outdoor
temperature
correction oset
–72°F –72°F 0
Value to compensate for outdoor sensor accuracy; variations can occur
due to solar gain or other factors.
Lead Lag Slave Configuration
Slave enable Enable or disable Disabled
Enables boiler as lead lag slave — options are Disabled or Enable slave
for built-in lead lag master
Slave mode
Equalize
runtime
Each slave burner can specify how it should be handled by the Lead
Lag master’s sequencer. This parameter selects one of those methods.
Options are: Equalize runtime, Use first according to priority, or Use last
according to priority
Base load rate % 0% 100% 40%
Until all boilers are firing - No boiler is requested to exceed the
common base load rate.
Slave sequence
order
18 0
Initial order for firing slave boiler
Demand to firing
delay
mm ss 0m 0s 20m 0s 10m 0s
This delay time is needed by the LL master to determine the length of
time to wait between requesting a slave SOLA to fire and detecting that
it has failed to start. It should be set to the total time normally needed
for the burner to transition from Standby to Run, including such things
as transition to purge rate, prepurge time, transition to lighto rate, all
ignition timings, and include some extra margin.
Fan rate during o
cycle
% 0% 100% 0
This determines if or where the fan is to be operating during the
standby period.
Modbus port MB1 MB2 MB1
Modbus port for communication between boiler and master; options
are MB1, MB2 or No Port
Modbus address 1 8 0
Select an address number for this boiler, unique from others on the lead
lag system.
Sola control parameter table (continued)
HOME PAGE CONFIGURATION
&IGURE (continued) Sola CONFIGURATION VALUES — setup options — White text on black titles are configuration
groups — see Figure 63, page 61 for location of configuration group in menus
(%NTERCHANGEDVALUESINTHELASTCOLUMN)