User Guide

Part number 550-100-400/0717
101
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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.
&IGURE U-Control system types and preset parameters
3YSTEMTYPE $ISPLAY 0RESETTEMPERATURES .OTE
8-character 3-char
Max Target
Temp
Outdoor Temp
for Max Target
Min Target
Temp
Outdoor Temp
for Min Target
Fan-coil FAN-COIL FCL 190 0 140 70
Finned tube baseboard FIN BASE FTB 180 0 130 70
Cast iron baseboard IRN BASE CIB 180 0 120 70
Cast iron radiators RADIATOR CIR 180 0 120 70
Radiant – slab on grade RAD SLAB RSG 120 0 80 70
Radiant – thin slab RAD SLAB RTS 140 0 80 70
Radiant – below fl oor
(staple up)
RADFLOOR RSU 160 0 90 70
Radiant – above fl oor
(sleeper system)
RADFLOOR RAF 140 0 90 70
Custom CUSTOM CUS 190 0 70 70 s$OESNOTPASSALONG!DDL(EAT$EMAND
DHW – system DOMESTIC DHW 190
DHW heating ignores outdoor reset and
warm weather shutdown
s5#ONTROLMODULATESTOSYSTEMTEMPERA
ture sensors.
DHW – direct DOMESTIC DHW 190 s5#ONTROLMODULATESTOBOILERTEMPERATURE
sensors.
s$OESNOTPASSALONG!DDL(EAT$EMAND
ADVANCED SETUP –
FREEZE PROTECTION CIRCULATORS
1. This function automatically fi res the boiler at low fi re
and starts the circulators chosen if the heat exchanger
sensor detects a temperature less than 40 °F. The circu-
lators 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
automatic means of notifying the homeowner of need
for scheduled maintenance by the technician. Update the
screen reminder to reset for the next maintenance date.
U-Control operation and setup — advanced (continued)
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SERIES 4 GAS-FIRED WATER BOILER — Boiler Manual