Day And Night Target; Space Feedback Gain; Bacnet Communication; Modbus Communication - heat-timer Multi-MOD Platinum Installation And Operation Manual

• The Space Lockout also prevents the control from overheating the space
temperature when switching from Day Time to Night Time . It does that
by using the Fast Cool Down . See "Fast Cool Down" on page 30 .

DAY AND NIGHT TARGeT

Day 55°F to 85°F
Night 50°F to 80°F
PReSS TO SeleCT: /<System Settings>/<More Settings>/<Remote Interface>/Day Target
• The Day and Night Targets are the Space Average temperatures that are
maintained during the Day Time and Night Time schedules . They are
also used by the Space Feedback to adjust the target water temperature
using the System Water Offset . In addition, the Day Target is used by
the Boost and the Night Target is used by the ESD . See "Boost and
Early Shutdown" on page 34 .
• If the Boost tends to extend beyond the Day Time #1 setting, the Night
Target may be too low . Increase the Night Target 2°F and re-evaluate
the Boost history after a few days .
CHANGe SYS WATeR TARGeT PeR SPACe DeGRee
Accessible Only through the Internet (Requires RINet Package)
0.0 to 5.0
• This change is used to fine-tune the reset ratio performance . It does that
by adjusting the water temperature hourly based on space temperature .
• Changing the system water target per space degree adjusts the Target
Water Temperature for every 1°F the Space Average is away from the
Space Target . That is, if the Space Target was 70°F and the Space
Average was 68°F, then the control will increase the System Water
Offset by 8°F when the Feedback Gain is set to 4°F ((70°F - 68°F) x
4°F = 8°F) . This increase in the system temperature allows the building
to reach its Space Target quicker . See "Space Feedback Concept" on
page 6 .
• If the Space Average Temperature tends to oscillate multiple times within
the day, reduce the Change System Water Target per Space Degree .
• If the Space Average Temperature never reaches the Day Space target,
increase the Change System Water Target per Space Degree .

BACNeT COMMuNICATION

(Requires BACnet Communication Package)
PReSS TO SeleCT: /<System Settings>/.../<Remote Interface>/Network Settings
• The Multi-MOD can be ordered with or upgraded to BACnet IP and
MSTP communication capabilities .
• See "BACnet Configuration Manual" for detailed information on setting
and using BACnet controls .

MODBuS COMMuNICATION

• The Multi-MOD can be ordered with or upgraded to MODBUS RTU
communication capabilities .
• See "MODBUS Configuration Manual" for detailed information on setting
and using MODBUS controls .
46
Multi-MOD Platinum with Space and Scheduling Installation and Operation Manual
---- DAY TARGET ---
Default: 75°F
Default: 65°F
[
---- Night TARGET ---
[
Default: 4.0
BACnet or MODBUS
capable Platinum controls
displays
PANEL--
of the display when in
screen-saver mode .
75 F
]
65 F
]
AleRT
--NETWORK
on the 2nd row