O
N
1
2
3
4
C
T
S
2
0
6
-4
O
N
1
2
3
4
C
T
S
2
0
6
-4
O
N
1
2
3
4
C
T
S
2
0
6
-4
O
N
1
2
3
4
C
T
S
2
0
6
-4
O
N
1
2
3
4
C
T
S
2
0
6
-4
O
N
1
2
3
4
C
T
S
2
0
6
-4
O
N
1
2
3
4
C
T
S
2
0
6
-4
O
N
1
2
3
4
C
T
S
2
0
6
-4
Dip
Switch
Settings
Expansion
Panel No.
1
2
3
4
5
6
7
8
23
EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 FAX 732-446-5362 E-Mail- [email protected]
The ZXM2 Expansion Module
for the UZC4 series is pictured above.
A
total of nine (9) ZXM2’s can be connected to the UZC4 to create a 22 ZONE
system! The modules are housed and linked together via a factory supplied
10 conductor BUS CABLE and a unique Expansion Header Card.
The
UZC4 expands by connecting factory assembled Expansion Systems
such as the ZXM2A, ZXM4A and ZXM6A that are pre-wired and
configured for you at the factory.
The UZC4 connects to these housed
expansion assemblies via a flexible 20” long bus cable. Each Expansion
module has a set of
address switches
that must be set properly to allow the
UZC4 to recognize each expansion module in the correct order.
Note the
“STATUS” LED provided on every Expansion Module to indicate
active micro-processor operation. There are also two “DAMPER”
LED’s provided to indicate which damper(s) are energized open or
closed.
Next to each Damper and Thermostat terminal block is a blank
white square, where the “Zone Number” can be written to easily identify it as
a new expanded zone. These blocks will be filled in for you at the factory
when a UZC 6 zone, 8 zone, 10 zone or higher has been ordered. The ZXM2
address switches will also be factory set for you. Note the same multi-input
thermostat terminals are supplied on the ZXM2 as are supplied on the
UZC4 Main Module.
Most Important of all is to note the
MXR & MXC
Damper Motor Power Input Block.
The ZXM2 Expansion Module is
powered via the Bus Cable from the UZC4,
but the power for the
dampers must be provided by a separate transformer and is isolated
from the module.
This allows great freedom to connect as many dampers
as the 2.5 amp thermal breaker can handle. See page 19 for damper motor
power supply details.
Make
sure to read the ZXM2 Technical Bulletin for
the proper cabling scenarios and zone address settings for your
system or refer to the chart on the right.
C
W1
W2
O
Y1
Y2
R
G
B
E
C
W1
W2
O
Y1
Y2
R
G
B
E
M6
M4
M2
M1
M6
M4
M2
M1
D
M
P
R
D
M
P
R
MXR
MXC
F1
TB1
TB2
TB3
TB4
TB5
DMPR
STATUS
LED1
LED2
LED3
T
S
T
A
T
T
S
T
A
T
SW1
R4
R3
R2
R1
R10
R9
R5
R6
R7
R8
D4
D5
D7
D8
D6
D9
D3
K1
K2
R11
R15
R12
R13
R14
C1
C2
D1
D2
R17
R19
R21
R22
R16
R18
R20
C3
C5
C4
U2
U3
C6
U4
U5
C7
R32
R34
R36
R29
R30
R31
R33
R35
R37
R38
R39
R41
R43
R46
R45
R40
R42
R44
R27
R25
R28
R26
R24
R23
R47
U6
U1
Y
1
C
8
J1
Z1
J2
C10
C9
C11
C12
C13
C14
C16
C20
C15
C17
C19
C18
ZXM2
ZXM2
5
6
5
5
6
6
ZXM2 FEATURES AT A GLANCE
POLARIZED
ISOLATING
DAMPER
POWER
TERMINAL
BLOCK &
2.5 amp
BREAKER
Rugged
Damper
Motor
Terminal
Blocks
with
ZONE ID
blocks
Heavy
duty
10 amp
contact
rated
relays
Rugged 10 pin
Expansion Header
Rugged &
Versatile
Thermostat
Terminal
Blocks
4 Switch ZONE
ADDRESS Bank
Bright STATUS LED
and DAMPER LED’S
with ZONE ID blocks
FIELD
ZONE ID
Blocks
Bus Cable not shown for clarity
All Expansion module
Dip switch banks must
be set correctly for
proper zone address
identification. The 1st
expansion module
would be zones 5 & 6.
The 2nd expansion
module would be zones
7 & 8. The 3rd
expansion module
would be zones 9 & 10.
And so on up the line
for a total of 22 zones.
The switches are set
for you at the factory
unless you are
expanding the system
in the field. It is a good
idea to check them
anyway.
O
N
1
2
3
4
C
T
S
2
0
6
-4
>
>
>
>
>
>
>
>
1
2
4
8
0
0
0
0
A
A
A
A
O
N
1
2
3
4
C
T
S
2
0
6
-4
9
