Uponor SYSTEMpro 311, Installation Manual, Page: 54 / 107

COLD WEATHER CUT OUT (CWCO) (See fig. bb)
Maintaining slab at either melting or idling temperature
during extremely cold temperatures can be expensive or
impossible. To set a Cold Weather Cut Out:
1) Go to CWCO item field in Adjust Menu
2) Set CWCO to the temperature which you wish the
snowmelt system to turn off once the outdoor temperature
drops below that point
DIP SWITCH: Snow Melting
RANGE: OFF, -30 to 50°F (OFF, -34 to 10°C)
DEFAULT: 10°F (-12°C)
10K INDOOR SENSOR (MIX 10K ) (See fig. cc)
1) Go to MIX 10K item field in Adjust Menu
2) To add a slab sensor for temperature control for snow
melting, set to SLAB
RANGE: NONE, SLAB
DEFAULT: NONE
MIXING MAXIMUM (MIX MAX) (See fig. dd)
1) Go to MIX MAX item field in Adjust Menu
2) Set to highest water temperature control is allowed to use
as MIX TRG temperature
RANGE: 80 to 210°F, OFF (27 to 99°C, OFF)
DEFAULT: 180°F (82°C)
NOTE: Do not exceed the water temperatures
shown for the following construction methods.
52
PROGRAMMING
PROGRAMMING - Step 1 - Programming the Control
Adjust
o
F
bb
Access Level
LTD
USER
INST
ADV
Adjust
cc
Adjust
Access Level
LTD
USER
INST
ADV
Adjust
o
F
dd
Access Level
LTD
USER
INST
ADV
• Concrete 150°F
• Poured Underlayment 140°F
• Radiant Wall/Ceiling 120°F
(using drywall)
• Joist No Plates 180°F
• Joist w/Plates 165°F
• Quik Trak ® 180°F