Tekmar tekmarNet 2 530, Руководство по установке и эксплуатации

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Cooling Operation
Section B
The thermostat operates the cooling system to maintain the Set Room Cool
temperature. The C1 symbol is shown on the display when the thermostat is
cooling. The cooling can cycle on and off /- 1.5°F (1°C) of the Set Room
Cool temperature.
The cooling system has a fixed minimum on time of 2 minutes and a minimum off
time of 5 minutes in order to prevent cooling equipment short cycling.
Air Groups
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In order to prevent heating and cooling at the same time, this thermostat can
operate together with other thermostats on a tekmarNet
® system to form an air
group. There can be up to 16 different air groups on the same HVAC system. When
this thermostat is set as the Air Group master, it operates the cooling equipment
for the group. Other thermostats can be set to become members of the same air
group. When the cooling is turned on, all air group member thermostats ensure the
heating is off. When operating as an air group, the air temperature readings of all
the air group member thermostats are displayed on the master as an average.
The air group average temperature is shown as the “Room” temperature while
the mode is set to Cool, or the mode is set to Auto and the thermostat is allowing
cooling operation. In all other modes, the air group master thermostat measures
and displays the built-in “local” temperature
sensor measurement.
Fluctuations in the displayed “Room”
temperature may occur during automatic
mode switch over when the display changes
from using the local temperature for heating
to using the air group average temperature
for cooling.
Air Group
Master Member Member
tekmarNet Communication
If the thermostat operates a thermal motor (wax actuator) zone valve, set the Heat
Supply Pump Delay setting to On. This provides a three minute delay to allow the
zone valve to open before the primary or mix pump is turned on.
In special applications with multiple zoning manifolds, the Heat Supply Pump setting
can be set to Off. This allows a Zone Group Pump located on the Zone Manager,
or Wiring Center to operate the pump for the manifold.
DHW Tank Priority
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When a tekmarNet ® reset control is heating an indirect Domestic Hot Water (DHW)
tank, the thermostat may shut off the heating zones to allow the DHW tank to recover
quickly. This is determined by the DHW priority of the tekmarNet
® reset control.
Warm Weather Shut Down
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When the outdoor air temperature exceeds the Warm Weather Shut Down (WWSD)
setting on the tekmarNet
® reset control, the heating system is shut off.