Zonex ZonexCommander, Руководство по установке

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ModStat / MODS2 THERMOSTATS
SUBBASE
ModStat Terminal Designations:
TX
– Data transmit
RX – Data receive
RO – Run Open, damper
RC – Run Closed, damper
R – 24vac power input
C-MC – 24vac power common
MODSTAT
GENERAL OPERATION
Ventilation
– No active Heat or Cool calls
With no active calls, the ModStat or MODS2 will open the damper for
blower ventilation.
Cool Call – The ModStat and MODS2 will send a signal for demand
cooling when the space temperature exceeds the cool setpoint temperature
by 1°. The thermostat will end the active call when the space temperature
meets the cool setpoint.
Heat Call – The ModStat and MODS2 will send a signal for demand
heating when the space temperature drops 1° below the heat setpoint
temperature. If the temperature drops 2° below the heat setpoint tem-
will end the active call when the space temperature meets the heat setpoint.
When configured for Reheat, if the space temperature drops 1° below
modulate the damper open. The heat call will terminate when the space
system goes into the ventilation mode, the damper will then modulate
open.
Reheat
- The
ModStat
can be field configured for Reheat operation
by pressing the
Heat/Cool
and
Select
buttons together, and then press
the
Menu
button and release all three buttons. The Heat/Cool set-
point display will show the ° symbol to verify Reheat configuration.
AUX – Reheat/AUX Heat Fan
SUPPLEMENTAL HEAT APPLICATIONS
Note 1: Sail switch or pressure switch
should be used to prove fan operation.
NOTE: A larger transformer may be needed to power fan relay and/or heat strip relay
.
perature, the “AUX” output will energize for auxiliary heat. The thermostat
the heat setpoint, the ModStat will energize the “AUX” output and
temperature reaches the heat setpoint temperature. The “AUX”
output will de-energize, and the damper will modulate closed. If the