Description, Mounting, Vav system – WattMaster MG331-21-VAVCAV User Manual
Page 23: Inputs: outputs, Page, 1 of 1
Form: WMS-OE331-21-GPCPlusController-01A.doc
Page
1 of 1
VAV System
Description
The OE331-21 General Purpose Con-
troller Plus (GPC Plus) is used for con-
trolling equipment or processes that can-
not be controlled using HVAC controllers.
The Prism computer front end software is
used to interface with the GPC Plus con-
troller functions. The GPC Plus Controller
provides the flexibility to control, schedule
and/or monitor equipment such as unit
heaters, exhaust fans, motorized louvers,
etc.. The GPC Plus has (6) configurable
inputs which will accept signals from
thermistor temperature sensors, 4-20mA
or 0-5VDC transmitters or dry contact
closures. An additional modular input is
provided for connection of an OE271
static pressure sensor. The GPC Plus
has (5) relay outputs for on/off control
and (2) analog outputs. With the addition
of the OE352 2 Slot Expansion Base
Board and (1) OE357 4 Relay Expansion
Board, (4) additional relay outputs are
available providing for a maximum of (9)
usable relay outputs. The GPC Plus also
has (5) separate 2 event per day sched-
ules, each with its own optimal start func-
tions built in. In addition the GPC Plus
provides lead/lag start capabilities.
Mounting
The GPC Plus is provided with an integral backplate for mounting inside of a control enclosure. It is recom-
mended that the GPC Plus be mounted in the HVAC unit control enclosure, or in a control enclosure in the
building equipment room. An optional factory control enclosure for the GPC Plus is available.
OE331-21-GPC Plus
GPC Plus Controller
Technical Data
OE331-21-GPCPLUS
GPC Plus Controller
Power
24 Volt AC
Weight
1.5 lb.
Power Consumption
8 VA Maximum
Network Connection
RS-485
Operating Temp
10
°F to 149°F Protocol
HSI Open Protocol Token Passing
Operating Humidity
90% RH Non-Condensing
Communications
RS-485 - 9600 Baud
Inputs:
Outputs:
Type III-10kohm sensors
Total Relay Qty. On Board
5
4-20ma sensors
N.O. Binary Contact
Total Relay Qty. Available With
Optional Expansion Board
9
Types of Allowed
Inputs
N.C. Binary Contact
Relay Power Rating
(2 Amp @ 24 VAC)
Total Inputs Available
7
Analog Output Qty.
2
Static Pressure Inputs
1 (Modular )
Analog Output Signal
0-10 VDC
Configurable Inputs
6
Optimal Start Schedules
(5) Total - (1) for Each Schedule
Schedules Available
(5) 2 Event per day
Lead Lag Scheduling
(1) Output can be Configured
Three Year Warranty
WattMaster reserves the right to change specifications without notice
RL
Y
1
D1
D2
D3
D4
D5
CX
3
RAM
EPROM
C3
C2
U6
PH
IL
IP
S
CX6
C1
CX2
U2
U3
PAL
CX4
U4
TUC-5R PLUS
YS101816 REV. 2
V1
V2
V3
V5
V4
TB2
4
NETWORK
TOKEN
16
32
8
SW1
ADD
2
1
ADDRESS
V6
PO
W
ER
GND
24VAC
L1
D1
6
R6
C9
SC1
R1
1
U1
1
MC
34064
A
D1
3
C16
9936
VR2
7824C
T
M
TB4
R27
C13
R1
0
VR1
C1
9
C1
8
NE5090NPB3192
0PS
U8
CX
8
U9
X1
R7
D1
0
R13
D12
C7
CX10
U10
CX12
U12
U14
CX14
PJ3
PJ2
PJ1
EXPANSION
PRESSURE
SENSOR
T'STAT
C17
D15
R26
C20
R25
R24
R22
U15
CX13
U13
C15
R19
R15
C14
D1
8
D1
7
PU1
PU2
PU3
PU4
PU5
PU7
D6
D7
D8
D9
D11
D14
C12
C10
0-
5
VD
C
0-
1
VD
C
JP1
C1
1
X2
GND
TB3
INPUTS
GND
GND
+VDC
AIN1
AIN2
AIN3
AIN4
AIN5
AOUT1
AOUT2
AIN7
RN
4
1
RN5
RS-485
CX5
U5
R
TB1
SHLD
T
COMM
COMM
RN
3
1
RN1
U1
CX1
1
LD6
COMM
PWR
LD7
LED1
LED2
LD9
LD8
R1
U7
RV1
VREF ADJ
R28
+VREF
5.11V
TEST POINT
EWDOG
D19
RN2
1
COM1-3
COM4-5
R5
R4
R3
R2
R1
RL
Y
2
RL
Y
3
RL
Y
4
RL
Y
5
CX15
(1 MEG)
HH
P1
C2
1
6.2“
6.6”
7.3”
6.7”
1.1”
.20 Dia.
Typ. of 4