Install Instructions

© 2015 554_D - 02/15
33 of 44
A Watts Water Technologies Company
Air Group Operation
To prevent heating and cooling at the same time, this thermostat can operate with
other thermostats on a tekmarNet system to form an air group. The 554 can be set
up as the air group master. Other heat-only thermostats can be set up as an air group
member. When operating as an air group, the air temperature readings of all the air
group member thermostats are communicated to the air group master thermostat and
an average air temperature is determined. The cooling operates based on the average
temperature reading. When the air group master is in cooling operation, the air group
member thermostats do not operate the heating system for air heating.
Air Group
tekmarNet
®
Communication
MemberMemberMaster
Time Clock
The thermostat includes a time clock that is automatically visible in the Home menu
when a programmable schedule is used. If the schedule is not used, the user has
the option to indicate that the time should be shown in the Home menu.
During a loss of power, the thermostat continues to keep the correct time and
date for at least 4 hours. If the power is off for more than 4 hours, the user will need
to set the time.
The thermostat supports automatic update for daylight savings time. Simply set
Daylight Save to On together with the correct day, month, and year and the time
is automatically updated each spring and fall.
When a thermostat is connected to a tekmarNet
system, adjustment of the time on
one thermostat updates all connected thermostats. This option can be disabled
by selecting the Local Network Group setting to On.