Advanced Setup - Weil-McLain Ultra Commercial Installation And Start-Up Manual

COMMERCIAL GAS
U-Control operation and setup
U-Control system types and preset parameters
8-character
Fan-coil FAN-COIL
Finned tube baseboard FIN BASE
Cast iron baseboard IRN BASE
Cast iron radiators RADIATOR
Radiant – slab on grade RAD SLAB
Radiant – thin slab RAD SLAB
Radiant – below floor RADFLOOR
Radiant – above floor RADFLOOR
Custom CUSTOM
DHW – system DOMESTIC
DHW – direct DOMESTIC
Typical outdoor reset curves
3.
many degrees below target temperature for the boiler to come
on.
4.
perature increases above the target temperature, the boiler firing
rate is reduced. At this many degrees above the target temperature,
the boiler shuts down.
62
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FIRED WATER BOILER
3-char Max Target Outdoor Temp
Temp for Max Target
FCL
FTB 180
CIB 180
CIR 180
RSG 120
RTS 140
RSU 160
RAF 140
CUS
DHW
DHW
— The temperature must drop this
— While the boiler is firing, as the tem-
— Boiler Manual
(continued)
Min Target Outdoor Temp
Temp for Min Target
0 140 70
0 130 70
0 120 70
0 120 70
0 80 70
0 80 70
0 70
0 70
0 70 70
DHW heating ignores
outdoor reset and
warm weather shutdown
ADVANCED SETUP —
Circulator exercising
1. For each circulator, select whether you want the U-
Control to automatically start the circulator and run for
10 seconds for each 72-hour period of inactivity.
ADVANCED SETUP —
Freeze protection circulators
1. This function automatically fires the boiler at low fire
and starts the circulators chosen if the heat exchanger
sensor detects a temperature less than 40 °F. The circu-
lators and boiler turn off when the temperature rises
above 45 °F.
ADVANCED SETUP —
Maintenance info
1. Use this section to enter contractor's information and to
enter an automatic notice for maintenance (default is 12
months). Because this shows on the display, it is an au-
tomatic means of notifying the homeowner of the need
for scheduled maintenance by the technician. Update the
screen reminder to reset for the next maintenance date
after completing required maintenance.
ture sensors.
sensors.
Part number 550-100-086/0809
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