Zonex ZonexCommander, Руководство по установке

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DESCRIPTION
The LCD ModStat is available for the ZonexCommander
The unique grey display backlight is constantly illuminated in the Occupied
mode. The display backlight will go out in the Unoccupied mode. If any
button is pressed while the thermostat is in the Unoccupied mode, the
backlight will illuminate for 5 seconds. The backlight will also be
illuminated when the thermostat is in the 2-hour override mode.
INSTALLATION
Thermostat and terminal base
1. The thermostat is to be installed on an interior wall, away from drafts,
supply air currents and direct sunlight or any heat generating source.
2. To remove the thermostat cover, grasp the cover at the top and pull
straight off; do not pivot the cover from the base.
3. Install the thermostat terminal base to the wall using the provided
anchors and screws. The thermostat can also be mounted on a 2x4
electrical box using two #6-32” screws.
WIRING
The Zonex Systems ModStat and MODS2 thermostats have been specifically
designed to make wall mounting and wire connections very easy. The
thermostat terminal base has two separate terminal blocks: the left side
terminal block is for the 24vac control circuits, and the right side terminal
block is for the RX TX communication circuits. There are two sets of RX
TX terminals on the base to make daisy chain wiring from device to device
straightforward and simple.
1. Use minimum 18-gauge AWG thermostat wire for the 24vac control
circuits. The load on the auxiliary heat circuit must not exceed 1 amp
at 24vac. The voltage range on R and C must not exceed 28vac.
2. Connect the communication wires to the RX TX terminals. There are
2 sets of RX TX terminals for “daisy chain” installation of this circuit.
The communication wire specification is: twisted pair (Belden 8740)
or shielded twisted pair wire (Belden 8450). Refer to manual (ZCMAN).
NOTE: When using shielded twisted pair wire (Belden 8450), just
connect the shield conductors together, as there is no electrical
connection on the thermostat base terminals. The shield will be landed
on the Command Center on the G or TR2 terminal.
3. On the ModStat , connect the damper control wires from MC, RC and RO to
the actuator terminals. For MODS2 , connect MC and RC to the damper motor.
4. Auxiliary Heat – The ModStat and MODS2 provide a 24vac signal
gized when the space temperature is 2° below the heat setpoint. The
signal is de-energized at setpoint temperature.
CONFIGURATION
Addressing
(1-20). Each thermostat must have a unique address from 1 to 20.
1. Press and hold the Menu button until you see the system mode display
on the lower right begin to scroll and change modes; then press and
hold the
Heat/Cool button with the Menu button.
2. When the display shows “address,” release the Menu and Heat/Cool
buttons; and press the UP or DN button until the correct address is
displayed in the upper right of the display.
3. After setting the address, the thermostat will automatically go back to
normal operation; and the setpoint temperature will replace the
address number just programmed.
Manual Operation - Adjusting Setpoints
The Heat or Cool setpoints can be displayed by pressing the Heat/Cool
button; the setpoint will be displayed on the upper right of the display.
Heat – If “Heat Setting” is displayed on the top right of the display,
simply press the UP or DN button to change the heat setpoint. If “Cool
Setting” is displayed and you want to change the Heat setpoint, press and
hold the
Heat/Cool button twice to change from “Cool Setting” to “Heat
Setting.” Then press the UP or DN button to change the setpoint.
Cool – If “Cool Setting” is displayed on the top right of the display, simply
press the UP or DN button to change the cool setpoint. If “Heat Setting”
is displayed and you want to change the Cool setpoint, press and hold the
Heat/Cool button twice to change from “Heat Setting” to “Cool Setting.”
Then press the UP or DN button to change the setpoint.
Changing Mode
The thermostats are auto changeover, but specific modes may be selected.
Auto mode is the default.
Heat only – Press and hold the Menu button, and note the mode display
begin to change. Press the Select button when Heat is displayed.
Cool only – Press and hold the Menu button, and note the mode display
begin to change. Press the Select button when Cool is displayed.
System Off – Press and hold the Menu button, and note the mode
display begin to change. Press the Select button when Off is displayed.
Auto mode – Press and release the Menu button.
Override
When the thermostat displays “Unoccupied” (top of display), a 2-hour
temporary override may be initiated by pressing the Override/
Select button.
When additional override time is required, press the Override/ Select
button again.
Display Temperature Calibration
Thermostats are calibrated at the factory and should require no further
adjustment. However, the display space temperature may be field cali-
brated by the following procedure:
1. Press and hold the
Heat/Cool and Select buttons together; then press
2. To lower the temperature display, press the DN button once, after
pressing the Heat/Cool and Select buttons. This makes a 1° change.
ModStat / MODS2 THERMOSTATS
with the System 2000 GEN II product. The ModStat
(Plus) DDC control system. It is also utilized
version drives medium pressure, power open / power
close dampers for modulating applications. The
MODS2 version drives low pressure, power close /
spring open dampers for 2-position systems, which are
2000 CFM or less.
NOTE: An Air Proving Switch must be wired into the “AUX” output to
protect the electric heating devices.
output on the "AUX” terminal for Auxiliary Heat. This signal is ener-
including Fan Powered VAV boxes. The terminal base provides a
24 volt output on terminal “AUX” for the heat elements and the fan relay
5. Reheat - The ModStat can be field configured for Reheat applications,
circuit (if applicable).
and release the UP button to increase the display temperature by 1°.