Oe321, Wcc iii installation guide, Tuc-2r and four relay expansion board – WattMaster WM-WCC3-TGD-01B User Manual
Page 563: Wcc iii technical guide 12-67, Oe320
12. WCC III INSTALLATION
GUIDE
WCC III Technical Guide
12-67
The current TUC-2R controller is an application-specifi c controller.
Please see the application-specifi c manual for the exact input
and output confi guration for the specifi c application that you are
controlling. This current TUC-2R controller is generally used to
control only VAV box control. The number -2R derives from the
fact that there are a total of 2 relay outputs on this circuit board. Also
included on the TUC-2R is the expansion port for additional input
and output control. Typical common applications of this TUC-2R
controller are as follows: complicated VAV box control such as
series/parallel fan-powered boxes with reheat and both pressure
dependent or pressure independent operations. WattMaster
Controls has an extensive standard library of application-specifi c
software that has been developed over the years for this TUC-2R
controller. WattMaster Controls can and will write application-
specifi c software to your written specifi cations, for a nominal cost.
This is usually done to satisfy a specifi c customer requirement.
G5L-114P-PS
24VDC
CONTACT:
UL / CSA 5A250VAC
G5L-114P-PS
24VDC
CONTACT:
UL / CSA 5A250VAC
OMRON
OMRON
WA
R
N
IN
G
OB
S
E
R
V
E
PO
LA
R
ITY
OE320
Figure 12-50: TUC-2R Controller – Current version
This Four Relay Expansion Board uses an 8-position modular plug
to connect to the TUC-2R controller.
The Four Relay Expansion Board is an expansion board for the
TUC-2R controller. It provides a means to add 4 additional output
relays to the TUC-2R controller. Again, control of these relays is
application specifi c, meaning that the software code in the TUC-
2R must have been written to support the Four Relay Expansion
Board. This board is typically used to control pilot duty relays that
control Series Fan, Parallel Fan, up to 2 stages of Box heat, and
external Strip Heat.
G
5
L
-11
4P
-P
S
24
V
D
C
CO
N
T
A
C
T
:
UL
/
C
S
A
5A
25
0V
A
C
OM
R
O
N
OM
R
O
N
G
5
L
-11
4P
-P
S
24
VD
C
C
O
NT
AC
T:
U
L
/
C
S
A
5A
25
0V
A
C
OM
RO
N
G
5
L-
114P
-P
S
24
V
D
C
CO
N
T
AC
T
:
U
L
/
C
S
A
5A
25
0VAC
OM
R
O
N
G
5
L
-11
4P
-P
S
24
VD
C
C
O
NT
AC
T:
U
L
/
C
S
A
5A
25
0V
A
C
OE321
Figure 12-51: The OE321 Four Relay Expansion Board
TUC-2R and Four Relay Expansion Board