Zone-All Controls Starzone 4000 Master User manual

Starzone 4000 Master Control Panel
Figure 2.1 Master Control Panel
The heart of the Starzone 4000 system is the Starzone Master controller
(SZM-4000). Each AHU that is to be zone will have its own SZM-4000
Master control panel an each panel can operate in epen ently or be
networke together via a 3-wire, RS485 communication bus back to a
central PC.
To make servicing the SZM-4000 Master easier, the controller has two
parts: a motherboar , which has all the connectors for fiel wiring, an an
electronic aughter boar which plugs into the motherboar .

SZM-4000 Master Daughter Board
Figure 2.2 Mother and Daughter Boards
Swapping out a Master aughter boar with a known goo boar is a
simple an time efficient metho of confirming whether or not a problem
exists with the aughter boar or elsewhere.
Removing the boar is accomplishe by turning off the power switch, an
removing the two mounting screws on the left han si e. While
supporting the boar by the connectors, simply rock it out of the
connectors until it is free. Installing the new boar is as simple as
plugging in the replacement, installing the mounting screws, an turning
the power on.
When the system is connecte to a PC it may be necessary to re-serialize
the boar to match the boar it replace . This is accomplishe by pulling
own ip switch #10 an entering ‘SET SERIAL NUMBER’ un er the
‘SETUP’ menu in the Starcom Buil ing software. Once serialize it will be
necessary to transmit all of the user settings to the new boar . This is one
by selecting the ‘UPDATE MASTERS’ form which is also locate un er
the ‘SETUP’ menu.
SZM-4000 Master Motherboard
Normally there shoul n't be any nee to replace the motherboar as there
are no electronic components. The motherboar contains all of the
connectors that are use to connect the SZM-4000 Master to the Starzone

system. Shoul the motherboar require replacing carefully isconnect
an isolate each wire. Remove the mounting screws an replace the
boar .
Motherboard Ter inal Connections
24VAC,
C
The first set of 24VAC and C terminals are connected to a
40VA 24V transformer. A second set of 24VAC and C
contacts are provided to enable the installer to connect
the model RAD Bypass Damper's 24V s pply in parallel.
R This terminal connects an external 24V control signal from
the AHU. The signal is kept electrically isolated from the
24V s pply voltage on the Starzone 4000 system.
CV The CV terminal is energized whenever the Starzone
system switches into nocc pied mode. The CV contact
serves a different f nction when placed into Heat P mp
mode.
While in Heat P mp mode the CV contact controls the
cooling change over valve and will be energized shortly
before any cooling demand.
C1,C2 C1, and C2 (Cooling 1 and 2) is connected to the first and
second stages of cooling on the AHU.
Alar /
HCV
The Alarm/HCV terminal serves different p rposes in
Rooftop and Heat P mp modes. When the system is in
Rooftop mode the HCV terminal serves as an Alarm
contact o tp t.
While in Heat P mp mode this terminal is sed for the
Heating Changeover Valve contact and is energized
shortly before any heating demand.
H1,H2 H1 and H2 (Heating 1 and 2) is connected to the first and
second stages of heat on the AHU.
FAN The fan terminal is connected to the G or fan control of
the AHU and is de-energized when the system switches to
nocc pied mode.
WET The WET port terminal is a non-polarized alarm contact
terminal which can accept any 24VAC or DC alarm signal.
When a voltage is detected a ser defined message is
displayed on the Starcom B ilding software, the alarm
LED on the control panel will light, and the HCV alarm
contact will energize provided the system is in Rooftop
mode.

NS/DP The NS/DP (Night Setback/Dry Port Alarm) terminal serves
a d al p rpose. The defa lt mode is to serve as a control
inp t for Occ pied/Unocc pied mode. When a dry contact
clos re is present (a closed switch for example) the
system will operate in occ pied mode, in the absence of a
dry contact the system will switch to nocc pied mode.
Thro gh software the terminal can be switched to an
alarm port which will display a c stom alarm message on
the Starcom B ilding software, an alarm LED on the
control panel will light, as well the HCV alarm contact will
energize when the system is in Rooftop mode.
TOA The TOA (Temperat re O tdoor Air) terminal is a non-
polarized terminal for connecting the TOA sensor. Polarity
does not matter however the cond ctor sho ld not be
shared with any other devices. Never combine the TOA
sensor with the same cable sed to connect the AHU.
TSA The TSA (Temperat re S pply Air) terminal is a non-
polarized terminal for connecting the TSA sensor. Polarity
does not matter however the cond ctor sho ld not be
shared with other devices. For example never combine the
TSA sensor with a cable connecting the Bypass damper.
HUB
A,B,C
The HUB terminal is sed to connect all of the SZM-4000
Master Controllers, and Starcom H b together. This
comm nication cable is a twisted 3-wire non-shielded
cable that daisy chains all of the Masters to the Starcom
H b. On each device A connects to A, B-B, and C-C.
Zone
Co .
The Zone Comm nications terminal provides 24VAC power
and High and Low comm nications to each zone sensor.
This comm nication cable sho ld be a twisted 4-wire,
non-shielded cable that daisy chains all of the model AVD
zone dampers to the SZM-4000 Master Control panel.
Each AVD zone damper has two sets of zone
comm nication terminals and it does not matter which
one is connected beca se all fo r terminals are in parallel.
The second set of terminals on the AVD zone damper is
sed to contin e the power and comm nication cable to
the next AVD zone damper.
On each device 24VAC connects to 24VAC, H–H, L–L, and
C–C.
RS232
Sig, C
The RS232 terminal provides an RS232 o tp t signal that
can be connected to any comm nications serial port on a
PC. When the SZM-4000 Master control panel is not
connected to a Starcom H b the Master panel will perform
a memory d mp every 2 min tes.

LED’s
HVAC
Ter inals
The LED's associated with the HVAC terminals are connected in parallel
to the terminal contacts and are sed to indicate when each relay has
been energized.
Zone
Da pers
The Zone Dampers are displayed in gro ps of 8. Dip switches 1 and 2
on the SZM-4000 Master allow the ser to toggle between s bseq ent
gro ps of 8 zones. The Starzone 4000 system can have a total of 32
zones or 4 gro ps of 8. Each LED is a bi-color LED which means that it
can display either RED or Green. Green indicates the associated
damper is either f lly open or in the process of opening. RED indicates
the zone damper is either f lly closed or in the process of closing.
Beca se the zone dampers are f lly mod lating there may be times
when a damper is parked in a mid position, d ring which time the LED
will be off.
NIGHT The night LED indicates whenever the system switches into nocc pied
Mode. The LED is off d ring occ pied mode.
LIMIT D ring normal operation the Limit LED is off. There are two possible
limit conditions:
Low Limit - LED ON – This indicates the s pply air temperat re has
fallen below the ser adj stable c t-off. The SZM-4000 Master will t rn
off the second stage of cooling, and if the temperat re contin es to fall
will t rn off the first stage of cooling. The cooling will remain off for a
period of 5 min tes after the temperat re has res med to normal.
High Limit - LED FLASHING – This indicates the s pply air temperat re
has risen above the ser adj stable c t-off. Like the low limit the SZM-
4000 Master will stage off both the second and first stages of heating
also with a 5 min te delay.
POWER The LED is on whenever the SZM-4000 Master panel is on. If this LED
is not on check to ens re there is 24VAC at the L and C terminals.
Make certain the power switch located on the top right hand side is in
the ON position, and check the f se located below the power switch.
FAULT The SZM-4000 Master control panel contains a state of the art 'Watch
Dog' circ it. This is a separate stand alone circ it that monitors the
operation of the main CPU processors. If for any reason a processor
sho ld stop working the Watch Dog circ it will flash the FAULT LED
while cycling the power to the processor. Sho ld this not rectify the
problem the Watch Dog timer will contin e to cycle power indicated by
a flashing FAULT LED every 15–20 seconds.
DP The DP (Dry Port) LED is sed to indicate whenever a closed circ it is
present on the DP contact. A j mper located beside the LED is sed to
disable this LED f nction while the DP contact is config red in
occ pied/ nocc pied mode.

WP The WP (Wet Port) LED is sed to indicate whenever a voltage is
present on the WP contact.
Ju pers
There are three jumpers locate on the SZM-4000 Master Daughter boar :
Ju per Description
1 Located on the right hand side of the main CPU, J mper 1
selects the operation between rooftop mode and heat p mp
mode. Heat p mp mode sho ld only be selected when
connecting to heat p mp nits that req ire a control signal for a
reversing valve. While in heat p mp mode the SZM-4000 Master
tilizes the CV contact for the cooling changeover valve, and the
HCV/ALARM contact for the heating changeover valve.
2 Located directly to the right of J mper 1, J mper 2 selects
between R n and Test mode. Test mode sho ld only be
selected for tro bleshooting p rposes as a n mber of time
delays are dropped o t allowing the system to switch between
demands before pre-positioning the zone dampers. Under no
circ mstances sho ld the system be allowed to operate normally
while in test mode.
3 Located to the left of the DP LED, J mper 3 is sed to disable
the LED when the DP contact is config red for
Occ pied/Unocc pied operation.
DIP Switches
Figure 2.3 shows the recommen e position of the ip switches uring
normal operation.
Figure 2.3 DIP Switch, Nor al Settings

DIP
Switch
Description
1, 2 Zone Select - The SZM-4000 Master control panel can
connect up to 32 or 4 groups of 8 zones. Dip switches 1
an 2 are use to select which bank of 8 is isplaye by
the zone amper LED’s.
3 Communication - When ip switch 3 is enable the
amper LEDs isplay the serial communication
between the master an zone sensors. This mo e is use
for troubleshooting communication problems when in
contact with Zone All technical support. For normal
operation this ip switch shoul be left in the isable
position allowing the zone amper operation to be
isplaye .
4 Set Back Enable – This ip switch will isable the
system from going into Night Set Back.
5 Set Up Enable – This ip switch will isable the system
from going into Night Set Up. When both ip switches
are isable the system will not be able to enter
unoccupie mo e.
6 Cool Enable – For heat only systems this ip switch can
be use to isable the cooling.
7 Heat Enable – For cool only systems this ip switch can
be use to isable the heat.
8 isable Air Balance – For air balancing it is necessary
to rive all zone ampers to the full open position while
keeping the fan energize . During normal operation
this ip switch must be in the isable position.
9 72 egree Override – Enabling the 72ºF (22ºC) overri e
locks the set point on all zone sensors to 72ºF (22ºC).
10 amper Test Mode – When enable , the system enters
amper test mo e. Any zone sensor that has a set point
temperature set higher than 22ºC (72ºF) will rive the
associate zone amper to the full open position.
Conversely, any zone sensor turne below 22ºC (72ºF)
rives the zone amper to the full close position.

DIP
Switch
Description
Set Serial Number – Only one SZM-4000 Master can
accept a serial number at a time, so it is essential that
when transmitting a new serial number only one Master
has the Set Serial Number ip switch enable . Once
enable the user can transmit a new serial number to
the master through the 'SET SERIAL NUMBER' form
locate un er the ‘SETUP’ main menu in the Starcom
Buil ing software.