Dwyer DPC - Manual

Series DPC Duplexing Pump Controller
Specifications - Installation and Operating Instructions
Bulletin L-40
The Series DPC is used in control panels where two loads are
required to alternate to provide equal run time on the loads. The
alternating action is initiated by a control switch, which is common
with one side of the control voltage. The output contacts will
change states each time the control switch is opened, thus
alternating the two loads. The LED indicators show the position of
the output relay.
Important: Read the following carefully and completely before
installing or connecting DPC units.
Note: DO NOT exceed specified electrical rating. Doing so may
result in damage to control unit and load device.
INSTALLATION
1. Lock out all electrical current to relevant control panel during
installation.
2. Fasten a standard 8-pin octal socket in the control panel.
3. Make the appropriate connections as shown in the wiring
diagram (Figure A) to the corresponding numbered contacts on
socket.
4. Fit the Series DPC controller in the 8-pin octal socket.
5. SEQUENCE LOCK MODEL ONLY: Set the three-position toggle
switch to LOCK 1, LOCK 2 or AUTO for desired sequencing.
6. Resume power to control panel and monitor system for proper
functionality.
DWYER INSTRUMENTS, INC.
Phone: 219/879-8000 www.dwyer-inst.com
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A. Fax: 219/872-9057 e-mail: [email protected]
13/32
(10.32)
3
(76.20)
2-3/8
(60.32)
1-3/4
(44.45)
SPECIFICATIONS
Power Requirement: 120 VAC/DC, 240 VAC, 24 VAC/DC.
Power Consumption: 3 VA (approximate).
Temperature Limits:
Operating: -4 to 131°F (-20 to 55°C);
Storage: -40 to 185°F (-40 to 85°C).
Switch Type: SPDT.
Switching Current: 1 mA.
Electrical Rating: 10 A @ 240 VAC resistive, 1/8 hp @ 120
VAC, 1/4 hp @ 240 VAC inductive, 360 VA @ 240 VAC inductive.
Indicators: (2) LED’s show active output relay.
Enclosure: Polycarbonate dust cover.
Mounting: 8-pin octal.
Weight: 4.5 oz (128 g).
Agency Approvals: UL 508.
MAINTENANCE
Upon final installation of the Series DPC Duplex Pump Controller,
no routine maintenance is required. A periodic check of the system
calibration is recommended. The Series DPC is not field
serviceable and should be returned if repair is needed (field repair
should not be attempted and may void warranty). Be sure to
include a brief description of the problem plus any relevant
application notes. Contact customer service to receive a return
goods authorization number before shipping.
Figure A
©Copyright 2007 Dwyer Instruments, Inc. Printed in U.S.A. 10/07 FR# R3-443592-00
HOT/POS
NEUTRAL/NEG
CONTROL SWITCH
LOAD 1
LOAD 2
4 5
6
7
8 1
2
3
L-40 10/11/07 2:49 PM Page 1